ref: 43bfd7255c75836a4956c698fc28e378135867bc
dir: /eval.c/
/* vi:set ts=8 sts=4 sw=4: * * VIM - Vi IMproved by Bram Moolenaar * * Do ":help uganda" in Vim to read copying and usage conditions. * Do ":help credits" in Vim to see a list of people who contributed. * See README.txt for an overview of the Vim source code. */ /* * eval.c: Expression evaluation. */ #if defined(MSDOS) || defined(MSWIN) # include "vimio.h" /* for mch_open(), must be before vim.h */ #endif #include "vim.h" #ifdef AMIGA # include <time.h> /* for strftime() */ #endif #ifdef MACOS # include <time.h> /* for time_t */ #endif #ifdef HAVE_FCNTL_H # include <fcntl.h> #endif #if defined(FEAT_EVAL) || defined(PROTO) #define DICT_MAXNEST 100 /* maximum nesting of lists and dicts */ /* * In a hashtab item "hi_key" points to "di_key" in a dictitem. * This avoids adding a pointer to the hashtab item. * DI2HIKEY() converts a dictitem pointer to a hashitem key pointer. * HIKEY2DI() converts a hashitem key pointer to a dictitem pointer. * HI2DI() converts a hashitem pointer to a dictitem pointer. */ static dictitem_T dumdi; #define DI2HIKEY(di) ((di)->di_key) #define HIKEY2DI(p) ((dictitem_T *)(p - (dumdi.di_key - (char_u *)&dumdi))) #define HI2DI(hi) HIKEY2DI((hi)->hi_key) /* * Structure returned by get_lval() and used by set_var_lval(). * For a plain name: * "name" points to the variable name. * "exp_name" is NULL. * "tv" is NULL * For a magic braces name: * "name" points to the expanded variable name. * "exp_name" is non-NULL, to be freed later. * "tv" is NULL * For an index in a list: * "name" points to the (expanded) variable name. * "exp_name" NULL or non-NULL, to be freed later. * "tv" points to the (first) list item value * "li" points to the (first) list item * "range", "n1", "n2" and "empty2" indicate what items are used. * For an existing Dict item: * "name" points to the (expanded) variable name. * "exp_name" NULL or non-NULL, to be freed later. * "tv" points to the dict item value * "newkey" is NULL * For a non-existing Dict item: * "name" points to the (expanded) variable name. * "exp_name" NULL or non-NULL, to be freed later. * "tv" points to the Dictionary typval_T * "newkey" is the key for the new item. */ typedef struct lval_S { char_u *ll_name; /* start of variable name (can be NULL) */ char_u *ll_exp_name; /* NULL or expanded name in allocated memory. */ typval_T *ll_tv; /* Typeval of item being used. If "newkey" isn't NULL it's the Dict to which to add the item. */ listitem_T *ll_li; /* The list item or NULL. */ list_T *ll_list; /* The list or NULL. */ int ll_range; /* TRUE when a [i:j] range was used */ long ll_n1; /* First index for list */ long ll_n2; /* Second index for list range */ int ll_empty2; /* Second index is empty: [i:] */ dict_T *ll_dict; /* The Dictionary or NULL */ dictitem_T *ll_di; /* The dictitem or NULL */ char_u *ll_newkey; /* New key for Dict in alloc. mem or NULL. */ } lval_T; static char *e_letunexp = N_("E18: Unexpected characters in :let"); static char *e_listidx = N_("E684: list index out of range: %ld"); static char *e_undefvar = N_("E121: Undefined variable: %s"); static char *e_missbrac = N_("E111: Missing ']'"); static char *e_listarg = N_("E686: Argument of %s must be a List"); static char *e_listdictarg = N_("E712: Argument of %s must be a List or Dictionary"); static char *e_emptykey = N_("E713: Cannot use empty key for Dictionary"); static char *e_listreq = N_("E714: List required"); static char *e_dictreq = N_("E715: Dictionary required"); static char *e_toomanyarg = N_("E118: Too many arguments for function: %s"); static char *e_dictkey = N_("E716: Key not present in Dictionary: %s"); static char *e_funcexts = N_("E122: Function %s already exists, add ! to replace it"); static char *e_funcdict = N_("E717: Dictionary entry already exists"); static char *e_funcref = N_("E718: Funcref required"); static char *e_dictrange = N_("E719: Cannot use [:] with a Dictionary"); static char *e_letwrong = N_("E734: Wrong variable type for %s="); static char *e_nofunc = N_("E130: Unknown function: %s"); static char *e_illvar = N_("E461: Illegal variable name: %s"); /* * All user-defined global variables are stored in dictionary "globvardict". * "globvars_var" is the variable that is used for "g:". */ static dict_T globvardict; static dictitem_T globvars_var; #define globvarht globvardict.dv_hashtab /* * Old Vim variables such as "v:version" are also available without the "v:". * Also in functions. We need a special hashtable for them. */ static hashtab_T compat_hashtab; /* * When recursively copying lists and dicts we need to remember which ones we * have done to avoid endless recursiveness. This unique ID is used for that. */ static int current_copyID = 0; /* * Array to hold the hashtab with variables local to each sourced script. * Each item holds a variable (nameless) that points to the dict_T. */ typedef struct { dictitem_T sv_var; dict_T sv_dict; } scriptvar_T; static garray_T ga_scripts = {0, 0, sizeof(scriptvar_T), 4, NULL}; #define SCRIPT_SV(id) (((scriptvar_T *)ga_scripts.ga_data)[(id) - 1]) #define SCRIPT_VARS(id) (SCRIPT_SV(id).sv_dict.dv_hashtab) static int echo_attr = 0; /* attributes used for ":echo" */ /* Values for trans_function_name() argument: */ #define TFN_INT 1 /* internal function name OK */ #define TFN_QUIET 2 /* no error messages */ /* * Structure to hold info for a user function. */ typedef struct ufunc ufunc_T; struct ufunc { int uf_varargs; /* variable nr of arguments */ int uf_flags; int uf_calls; /* nr of active calls */ garray_T uf_args; /* arguments */ garray_T uf_lines; /* function lines */ #ifdef FEAT_PROFILE int uf_profiling; /* TRUE when func is being profiled */ /* profiling the function as a whole */ int uf_tm_count; /* nr of calls */ proftime_T uf_tm_total; /* time spend in function + children */ proftime_T uf_tm_self; /* time spend in function itself */ proftime_T uf_tm_children; /* time spent in children this call */ /* profiling the function per line */ int *uf_tml_count; /* nr of times line was executed */ proftime_T *uf_tml_total; /* time spend in a line + children */ proftime_T *uf_tml_self; /* time spend in a line itself */ proftime_T uf_tml_start; /* start time for current line */ proftime_T uf_tml_children; /* time spent in children for this line */ proftime_T uf_tml_wait; /* start wait time for current line */ int uf_tml_idx; /* index of line being timed; -1 if none */ int uf_tml_execed; /* line being timed was executed */ #endif scid_T uf_script_ID; /* ID of script where function was defined, used for s: variables */ int uf_refcount; /* for numbered function: reference count */ char_u uf_name[1]; /* name of function (actually longer); can start with <SNR>123_ (<SNR> is K_SPECIAL KS_EXTRA KE_SNR) */ }; /* function flags */ #define FC_ABORT 1 /* abort function on error */ #define FC_RANGE 2 /* function accepts range */ #define FC_DICT 4 /* Dict function, uses "self" */ /* * All user-defined functions are found in this hashtable. */ static hashtab_T func_hashtab; /* The names of packages that once were loaded are remembered. */ static garray_T ga_loaded = {0, 0, sizeof(char_u *), 4, NULL}; /* list heads for garbage collection */ static dict_T *first_dict = NULL; /* list of all dicts */ static list_T *first_list = NULL; /* list of all lists */ /* From user function to hashitem and back. */ static ufunc_T dumuf; #define UF2HIKEY(fp) ((fp)->uf_name) #define HIKEY2UF(p) ((ufunc_T *)(p - (dumuf.uf_name - (char_u *)&dumuf))) #define HI2UF(hi) HIKEY2UF((hi)->hi_key) #define FUNCARG(fp, j) ((char_u **)(fp->uf_args.ga_data))[j] #define FUNCLINE(fp, j) ((char_u **)(fp->uf_lines.ga_data))[j] #define MAX_FUNC_ARGS 20 /* maximum number of function arguments */ #define VAR_SHORT_LEN 20 /* short variable name length */ #define FIXVAR_CNT 12 /* number of fixed variables */ /* structure to hold info for a function that is currently being executed. */ typedef struct funccall_S funccall_T; struct funccall_S { ufunc_T *func; /* function being called */ int linenr; /* next line to be executed */ int returned; /* ":return" used */ struct /* fixed variables for arguments */ { dictitem_T var; /* variable (without room for name) */ char_u room[VAR_SHORT_LEN]; /* room for the name */ } fixvar[FIXVAR_CNT]; dict_T l_vars; /* l: local function variables */ dictitem_T l_vars_var; /* variable for l: scope */ dict_T l_avars; /* a: argument variables */ dictitem_T l_avars_var; /* variable for a: scope */ list_T l_varlist; /* list for a:000 */ listitem_T l_listitems[MAX_FUNC_ARGS]; /* listitems for a:000 */ typval_T *rettv; /* return value */ linenr_T breakpoint; /* next line with breakpoint or zero */ int dbg_tick; /* debug_tick when breakpoint was set */ int level; /* top nesting level of executed function */ #ifdef FEAT_PROFILE proftime_T prof_child; /* time spent in a child */ #endif funccall_T *caller; /* calling function or NULL */ }; /* * Info used by a ":for" loop. */ typedef struct { int fi_semicolon; /* TRUE if ending in '; var]' */ int fi_varcount; /* nr of variables in the list */ listwatch_T fi_lw; /* keep an eye on the item used. */ list_T *fi_list; /* list being used */ } forinfo_T; /* * Struct used by trans_function_name() */ typedef struct { dict_T *fd_dict; /* Dictionary used */ char_u *fd_newkey; /* new key in "dict" in allocated memory */ dictitem_T *fd_di; /* Dictionary item used */ } funcdict_T; /* * Array to hold the value of v: variables. * The value is in a dictitem, so that it can also be used in the v: scope. * The reason to use this table anyway is for very quick access to the * variables with the VV_ defines. */ #include "version.h" /* values for vv_flags: */ #define VV_COMPAT 1 /* compatible, also used without "v:" */ #define VV_RO 2 /* read-only */ #define VV_RO_SBX 4 /* read-only in the sandbox */ #define VV_NAME(s, t) s, {{t}}, {0} static struct vimvar { char *vv_name; /* name of variable, without v: */ dictitem_T vv_di; /* value and name for key */ char vv_filler[16]; /* space for LONGEST name below!!! */ char vv_flags; /* VV_COMPAT, VV_RO, VV_RO_SBX */ } vimvars[VV_LEN] = { /* * The order here must match the VV_ defines in vim.h! * Initializing a union does not work, leave tv.vval empty to get zero's. */ {VV_NAME("count", VAR_NUMBER), VV_COMPAT+VV_RO}, {VV_NAME("count1", VAR_NUMBER), VV_RO}, {VV_NAME("prevcount", VAR_NUMBER), VV_RO}, {VV_NAME("errmsg", VAR_STRING), VV_COMPAT}, {VV_NAME("warningmsg", VAR_STRING), 0}, {VV_NAME("statusmsg", VAR_STRING), 0}, {VV_NAME("shell_error", VAR_NUMBER), VV_COMPAT+VV_RO}, {VV_NAME("this_session", VAR_STRING), VV_COMPAT}, {VV_NAME("version", VAR_NUMBER), VV_COMPAT+VV_RO}, {VV_NAME("lnum", VAR_NUMBER), VV_RO_SBX}, {VV_NAME("termresponse", VAR_STRING), VV_RO}, {VV_NAME("fname", VAR_STRING), VV_RO}, {VV_NAME("lang", VAR_STRING), VV_RO}, {VV_NAME("lc_time", VAR_STRING), VV_RO}, {VV_NAME("ctype", VAR_STRING), VV_RO}, {VV_NAME("charconvert_from", VAR_STRING), VV_RO}, {VV_NAME("charconvert_to", VAR_STRING), VV_RO}, {VV_NAME("fname_in", VAR_STRING), VV_RO}, {VV_NAME("fname_out", VAR_STRING), VV_RO}, {VV_NAME("fname_new", VAR_STRING), VV_RO}, {VV_NAME("fname_diff", VAR_STRING), VV_RO}, {VV_NAME("cmdarg", VAR_STRING), VV_RO}, {VV_NAME("foldstart", VAR_NUMBER), VV_RO_SBX}, {VV_NAME("foldend", VAR_NUMBER), VV_RO_SBX}, {VV_NAME("folddashes", VAR_STRING), VV_RO_SBX}, {VV_NAME("foldlevel", VAR_NUMBER), VV_RO_SBX}, {VV_NAME("progname", VAR_STRING), VV_RO}, {VV_NAME("servername", VAR_STRING), VV_RO}, {VV_NAME("dying", VAR_NUMBER), VV_RO}, {VV_NAME("exception", VAR_STRING), VV_RO}, {VV_NAME("throwpoint", VAR_STRING), VV_RO}, {VV_NAME("register", VAR_STRING), VV_RO}, {VV_NAME("cmdbang", VAR_NUMBER), VV_RO}, {VV_NAME("insertmode", VAR_STRING), VV_RO}, {VV_NAME("val", VAR_UNKNOWN), VV_RO}, {VV_NAME("key", VAR_UNKNOWN), VV_RO}, {VV_NAME("profiling", VAR_NUMBER), VV_RO}, {VV_NAME("fcs_reason", VAR_STRING), VV_RO}, {VV_NAME("fcs_choice", VAR_STRING), 0}, {VV_NAME("beval_bufnr", VAR_NUMBER), VV_RO}, {VV_NAME("beval_winnr", VAR_NUMBER), VV_RO}, {VV_NAME("beval_lnum", VAR_NUMBER), VV_RO}, {VV_NAME("beval_col", VAR_NUMBER), VV_RO}, {VV_NAME("beval_text", VAR_STRING), VV_RO}, {VV_NAME("scrollstart", VAR_STRING), 0}, {VV_NAME("swapname", VAR_STRING), VV_RO}, {VV_NAME("swapchoice", VAR_STRING), 0}, {VV_NAME("swapcommand", VAR_STRING), VV_RO}, {VV_NAME("char", VAR_STRING), VV_RO}, {VV_NAME("mouse_win", VAR_NUMBER), 0}, {VV_NAME("mouse_lnum", VAR_NUMBER), 0}, {VV_NAME("mouse_col", VAR_NUMBER), 0}, }; /* shorthand */ #define vv_type vv_di.di_tv.v_type #define vv_nr vv_di.di_tv.vval.v_number #define vv_str vv_di.di_tv.vval.v_string #define vv_tv vv_di.di_tv /* * The v: variables are stored in dictionary "vimvardict". * "vimvars_var" is the variable that is used for the "l:" scope. */ static dict_T vimvardict; static dictitem_T vimvars_var; #define vimvarht vimvardict.dv_hashtab static void prepare_vimvar __ARGS((int idx, typval_T *save_tv)); static void restore_vimvar __ARGS((int idx, typval_T *save_tv)); #if defined(FEAT_USR_CMDS) && defined(FEAT_CMDL_COMPL) static int call_vim_function __ARGS((char_u *func, int argc, char_u **argv, int safe, typval_T *rettv)); #endif static int ex_let_vars __ARGS((char_u *arg, typval_T *tv, int copy, int semicolon, int var_count, char_u *nextchars)); static char_u *skip_var_list __ARGS((char_u *arg, int *var_count, int *semicolon)); static char_u *skip_var_one __ARGS((char_u *arg)); static void list_hashtable_vars __ARGS((hashtab_T *ht, char_u *prefix, int empty)); static void list_glob_vars __ARGS((void)); static void list_buf_vars __ARGS((void)); static void list_win_vars __ARGS((void)); #ifdef FEAT_WINDOWS static void list_tab_vars __ARGS((void)); #endif static void list_vim_vars __ARGS((void)); static void list_script_vars __ARGS((void)); static void list_func_vars __ARGS((void)); static char_u *list_arg_vars __ARGS((exarg_T *eap, char_u *arg)); static char_u *ex_let_one __ARGS((char_u *arg, typval_T *tv, int copy, char_u *endchars, char_u *op)); static int check_changedtick __ARGS((char_u *arg)); static char_u *get_lval __ARGS((char_u *name, typval_T *rettv, lval_T *lp, int unlet, int skip, int quiet, int fne_flags)); static void clear_lval __ARGS((lval_T *lp)); static void set_var_lval __ARGS((lval_T *lp, char_u *endp, typval_T *rettv, int copy, char_u *op)); static int tv_op __ARGS((typval_T *tv1, typval_T *tv2, char_u *op)); static void list_add_watch __ARGS((list_T *l, listwatch_T *lw)); static void list_rem_watch __ARGS((list_T *l, listwatch_T *lwrem)); static void list_fix_watch __ARGS((list_T *l, listitem_T *item)); static void ex_unletlock __ARGS((exarg_T *eap, char_u *argstart, int deep)); static int do_unlet_var __ARGS((lval_T *lp, char_u *name_end, int forceit)); static int do_lock_var __ARGS((lval_T *lp, char_u *name_end, int deep, int lock)); static void item_lock __ARGS((typval_T *tv, int deep, int lock)); static int tv_islocked __ARGS((typval_T *tv)); static int eval0 __ARGS((char_u *arg, typval_T *rettv, char_u **nextcmd, int evaluate)); static int eval1 __ARGS((char_u **arg, typval_T *rettv, int evaluate)); static int eval2 __ARGS((char_u **arg, typval_T *rettv, int evaluate)); static int eval3 __ARGS((char_u **arg, typval_T *rettv, int evaluate)); static int eval4 __ARGS((char_u **arg, typval_T *rettv, int evaluate)); static int eval5 __ARGS((char_u **arg, typval_T *rettv, int evaluate)); static int eval6 __ARGS((char_u **arg, typval_T *rettv, int evaluate)); static int eval7 __ARGS((char_u **arg, typval_T *rettv, int evaluate)); static int eval_index __ARGS((char_u **arg, typval_T *rettv, int evaluate, int verbose)); static int get_option_tv __ARGS((char_u **arg, typval_T *rettv, int evaluate)); static int get_string_tv __ARGS((char_u **arg, typval_T *rettv, int evaluate)); static int get_lit_string_tv __ARGS((char_u **arg, typval_T *rettv, int evaluate)); static int get_list_tv __ARGS((char_u **arg, typval_T *rettv, int evaluate)); static int rettv_list_alloc __ARGS((typval_T *rettv)); static listitem_T *listitem_alloc __ARGS((void)); static void listitem_free __ARGS((listitem_T *item)); static void listitem_remove __ARGS((list_T *l, listitem_T *item)); static long list_len __ARGS((list_T *l)); static int list_equal __ARGS((list_T *l1, list_T *l2, int ic)); static int dict_equal __ARGS((dict_T *d1, dict_T *d2, int ic)); static int tv_equal __ARGS((typval_T *tv1, typval_T *tv2, int ic)); static listitem_T *list_find __ARGS((list_T *l, long n)); static long list_find_nr __ARGS((list_T *l, long idx, int *errorp)); static long list_idx_of_item __ARGS((list_T *l, listitem_T *item)); static void list_append __ARGS((list_T *l, listitem_T *item)); static int list_append_tv __ARGS((list_T *l, typval_T *tv)); static int list_append_string __ARGS((list_T *l, char_u *str, int len)); static int list_append_number __ARGS((list_T *l, varnumber_T n)); static int list_insert_tv __ARGS((list_T *l, typval_T *tv, listitem_T *item)); static int list_extend __ARGS((list_T *l1, list_T *l2, listitem_T *bef)); static int list_concat __ARGS((list_T *l1, list_T *l2, typval_T *tv)); static list_T *list_copy __ARGS((list_T *orig, int deep, int copyID)); static void list_remove __ARGS((list_T *l, listitem_T *item, listitem_T *item2)); static char_u *list2string __ARGS((typval_T *tv, int copyID)); static int list_join __ARGS((garray_T *gap, list_T *l, char_u *sep, int echo, int copyID)); static void set_ref_in_ht __ARGS((hashtab_T *ht, int copyID)); static void set_ref_in_list __ARGS((list_T *l, int copyID)); static void set_ref_in_item __ARGS((typval_T *tv, int copyID)); static void dict_unref __ARGS((dict_T *d)); static void dict_free __ARGS((dict_T *d, int recurse)); static dictitem_T *dictitem_alloc __ARGS((char_u *key)); static dictitem_T *dictitem_copy __ARGS((dictitem_T *org)); static void dictitem_remove __ARGS((dict_T *dict, dictitem_T *item)); static void dictitem_free __ARGS((dictitem_T *item)); static dict_T *dict_copy __ARGS((dict_T *orig, int deep, int copyID)); static int dict_add __ARGS((dict_T *d, dictitem_T *item)); static long dict_len __ARGS((dict_T *d)); static dictitem_T *dict_find __ARGS((dict_T *d, char_u *key, int len)); static char_u *dict2string __ARGS((typval_T *tv, int copyID)); static int get_dict_tv __ARGS((char_u **arg, typval_T *rettv, int evaluate)); static char_u *echo_string __ARGS((typval_T *tv, char_u **tofree, char_u *numbuf, int copyID)); static char_u *tv2string __ARGS((typval_T *tv, char_u **tofree, char_u *numbuf, int copyID)); static char_u *string_quote __ARGS((char_u *str, int function)); static int get_env_tv __ARGS((char_u **arg, typval_T *rettv, int evaluate)); static int find_internal_func __ARGS((char_u *name)); static char_u *deref_func_name __ARGS((char_u *name, int *lenp)); static int get_func_tv __ARGS((char_u *name, int len, typval_T *rettv, char_u **arg, linenr_T firstline, linenr_T lastline, int *doesrange, int evaluate, dict_T *selfdict)); static int call_func __ARGS((char_u *name, int len, typval_T *rettv, int argcount, typval_T *argvars, linenr_T firstline, linenr_T lastline, int *doesrange, int evaluate, dict_T *selfdict)); static void emsg_funcname __ARGS((char *ermsg, char_u *name)); static void f_add __ARGS((typval_T *argvars, typval_T *rettv)); static void f_append __ARGS((typval_T *argvars, typval_T *rettv)); static void f_argc __ARGS((typval_T *argvars, typval_T *rettv)); static void f_argidx __ARGS((typval_T *argvars, typval_T *rettv)); static void f_argv __ARGS((typval_T *argvars, typval_T *rettv)); static void f_browse __ARGS((typval_T *argvars, typval_T *rettv)); static void f_browsedir __ARGS((typval_T *argvars, typval_T *rettv)); static void f_bufexists __ARGS((typval_T *argvars, typval_T *rettv)); static void f_buflisted __ARGS((typval_T *argvars, typval_T *rettv)); static void f_bufloaded __ARGS((typval_T *argvars, typval_T *rettv)); static void f_bufname __ARGS((typval_T *argvars, typval_T *rettv)); static void f_bufnr __ARGS((typval_T *argvars, typval_T *rettv)); static void f_bufwinnr __ARGS((typval_T *argvars, typval_T *rettv)); static void f_byte2line __ARGS((typval_T *argvars, typval_T *rettv)); static void f_byteidx __ARGS((typval_T *argvars, typval_T *rettv)); static void f_call __ARGS((typval_T *argvars, typval_T *rettv)); static void f_changenr __ARGS((typval_T *argvars, typval_T *rettv)); static void f_char2nr __ARGS((typval_T *argvars, typval_T *rettv)); static void f_cindent __ARGS((typval_T *argvars, typval_T *rettv)); static void f_col __ARGS((typval_T *argvars, typval_T *rettv)); #if defined(FEAT_INS_EXPAND) static void f_complete __ARGS((typval_T *argvars, typval_T *rettv)); static void f_complete_add __ARGS((typval_T *argvars, typval_T *rettv)); static void f_complete_check __ARGS((typval_T *argvars, typval_T *rettv)); #endif static void f_confirm __ARGS((typval_T *argvars, typval_T *rettv)); static void f_copy __ARGS((typval_T *argvars, typval_T *rettv)); static void f_count __ARGS((typval_T *argvars, typval_T *rettv)); static void f_cscope_connection __ARGS((typval_T *argvars, typval_T *rettv)); static void f_cursor __ARGS((typval_T *argsvars, typval_T *rettv)); static void f_deepcopy __ARGS((typval_T *argvars, typval_T *rettv)); static void f_delete __ARGS((typval_T *argvars, typval_T *rettv)); static void f_did_filetype __ARGS((typval_T *argvars, typval_T *rettv)); static void f_diff_filler __ARGS((typval_T *argvars, typval_T *rettv)); static void f_diff_hlID __ARGS((typval_T *argvars, typval_T *rettv)); static void f_empty __ARGS((typval_T *argvars, typval_T *rettv)); static void f_escape __ARGS((typval_T *argvars, typval_T *rettv)); static void f_eval __ARGS((typval_T *argvars, typval_T *rettv)); static void f_eventhandler __ARGS((typval_T *argvars, typval_T *rettv)); static void f_executable __ARGS((typval_T *argvars, typval_T *rettv)); static void f_exists __ARGS((typval_T *argvars, typval_T *rettv)); static void f_expand __ARGS((typval_T *argvars, typval_T *rettv)); static void f_extend __ARGS((typval_T *argvars, typval_T *rettv)); static void f_feedkeys __ARGS((typval_T *argvars, typval_T *rettv)); static void f_filereadable __ARGS((typval_T *argvars, typval_T *rettv)); static void f_filewritable __ARGS((typval_T *argvars, typval_T *rettv)); static void f_filter __ARGS((typval_T *argvars, typval_T *rettv)); static void f_finddir __ARGS((typval_T *argvars, typval_T *rettv)); static void f_findfile __ARGS((typval_T *argvars, typval_T *rettv)); static void f_fnamemodify __ARGS((typval_T *argvars, typval_T *rettv)); static void f_foldclosed __ARGS((typval_T *argvars, typval_T *rettv)); static void f_foldclosedend __ARGS((typval_T *argvars, typval_T *rettv)); static void f_foldlevel __ARGS((typval_T *argvars, typval_T *rettv)); static void f_foldtext __ARGS((typval_T *argvars, typval_T *rettv)); static void f_foldtextresult __ARGS((typval_T *argvars, typval_T *rettv)); static void f_foreground __ARGS((typval_T *argvars, typval_T *rettv)); static void f_function __ARGS((typval_T *argvars, typval_T *rettv)); static void f_garbagecollect __ARGS((typval_T *argvars, typval_T *rettv)); static void f_get __ARGS((typval_T *argvars, typval_T *rettv)); static void f_getbufline __ARGS((typval_T *argvars, typval_T *rettv)); static void f_getbufvar __ARGS((typval_T *argvars, typval_T *rettv)); static void f_getchar __ARGS((typval_T *argvars, typval_T *rettv)); static void f_getcharmod __ARGS((typval_T *argvars, typval_T *rettv)); static void f_getcmdline __ARGS((typval_T *argvars, typval_T *rettv)); static void f_getcmdpos __ARGS((typval_T *argvars, typval_T *rettv)); static void f_getcmdtype __ARGS((typval_T *argvars, typval_T *rettv)); static void f_getcwd __ARGS((typval_T *argvars, typval_T *rettv)); static void f_getfontname __ARGS((typval_T *argvars, typval_T *rettv)); static void f_getfperm __ARGS((typval_T *argvars, typval_T *rettv)); static void f_getfsize __ARGS((typval_T *argvars, typval_T *rettv)); static void f_getftime __ARGS((typval_T *argvars, typval_T *rettv)); static void f_getftype __ARGS((typval_T *argvars, typval_T *rettv)); static void f_getline __ARGS((typval_T *argvars, typval_T *rettv)); static void f_getpos __ARGS((typval_T *argvars, typval_T *rettv)); static void f_getqflist __ARGS((typval_T *argvars, typval_T *rettv)); static void f_getreg __ARGS((typval_T *argvars, typval_T *rettv)); static void f_getregtype __ARGS((typval_T *argvars, typval_T *rettv)); static void f_gettabwinvar __ARGS((typval_T *argvars, typval_T *rettv)); static void f_getwinposx __ARGS((typval_T *argvars, typval_T *rettv)); static void f_getwinposy __ARGS((typval_T *argvars, typval_T *rettv)); static void f_getwinvar __ARGS((typval_T *argvars, typval_T *rettv)); static void f_glob __ARGS((typval_T *argvars, typval_T *rettv)); static void f_globpath __ARGS((typval_T *argvars, typval_T *rettv)); static void f_has __ARGS((typval_T *argvars, typval_T *rettv)); static void f_has_key __ARGS((typval_T *argvars, typval_T *rettv)); static void f_haslocaldir __ARGS((typval_T *argvars, typval_T *rettv)); static void f_hasmapto __ARGS((typval_T *argvars, typval_T *rettv)); static void f_histadd __ARGS((typval_T *argvars, typval_T *rettv)); static void f_histdel __ARGS((typval_T *argvars, typval_T *rettv)); static void f_histget __ARGS((typval_T *argvars, typval_T *rettv)); static void f_histnr __ARGS((typval_T *argvars, typval_T *rettv)); static void f_hlID __ARGS((typval_T *argvars, typval_T *rettv)); static void f_hlexists __ARGS((typval_T *argvars, typval_T *rettv)); static void f_hostname __ARGS((typval_T *argvars, typval_T *rettv)); static void f_iconv __ARGS((typval_T *argvars, typval_T *rettv)); static void f_indent __ARGS((typval_T *argvars, typval_T *rettv)); static void f_index __ARGS((typval_T *argvars, typval_T *rettv)); static void f_input __ARGS((typval_T *argvars, typval_T *rettv)); static void f_inputdialog __ARGS((typval_T *argvars, typval_T *rettv)); static void f_inputlist __ARGS((typval_T *argvars, typval_T *rettv)); static void f_inputrestore __ARGS((typval_T *argvars, typval_T *rettv)); static void f_inputsave __ARGS((typval_T *argvars, typval_T *rettv)); static void f_inputsecret __ARGS((typval_T *argvars, typval_T *rettv)); static void f_insert __ARGS((typval_T *argvars, typval_T *rettv)); static void f_isdirectory __ARGS((typval_T *argvars, typval_T *rettv)); static void f_islocked __ARGS((typval_T *argvars, typval_T *rettv)); static void f_items __ARGS((typval_T *argvars, typval_T *rettv)); static void f_join __ARGS((typval_T *argvars, typval_T *rettv)); static void f_keys __ARGS((typval_T *argvars, typval_T *rettv)); static void f_last_buffer_nr __ARGS((typval_T *argvars, typval_T *rettv)); static void f_len __ARGS((typval_T *argvars, typval_T *rettv)); static void f_libcall __ARGS((typval_T *argvars, typval_T *rettv)); static void f_libcallnr __ARGS((typval_T *argvars, typval_T *rettv)); static void f_line __ARGS((typval_T *argvars, typval_T *rettv)); static void f_line2byte __ARGS((typval_T *argvars, typval_T *rettv)); static void f_lispindent __ARGS((typval_T *argvars, typval_T *rettv)); static void f_localtime __ARGS((typval_T *argvars, typval_T *rettv)); static void f_map __ARGS((typval_T *argvars, typval_T *rettv)); static void f_maparg __ARGS((typval_T *argvars, typval_T *rettv)); static void f_mapcheck __ARGS((typval_T *argvars, typval_T *rettv)); static void f_match __ARGS((typval_T *argvars, typval_T *rettv)); static void f_matcharg __ARGS((typval_T *argvars, typval_T *rettv)); static void f_matchend __ARGS((typval_T *argvars, typval_T *rettv)); static void f_matchlist __ARGS((typval_T *argvars, typval_T *rettv)); static void f_matchstr __ARGS((typval_T *argvars, typval_T *rettv)); static void f_max __ARGS((typval_T *argvars, typval_T *rettv)); static void f_min __ARGS((typval_T *argvars, typval_T *rettv)); #ifdef vim_mkdir static void f_mkdir __ARGS((typval_T *argvars, typval_T *rettv)); #endif static void f_mode __ARGS((typval_T *argvars, typval_T *rettv)); static void f_nextnonblank __ARGS((typval_T *argvars, typval_T *rettv)); static void f_nr2char __ARGS((typval_T *argvars, typval_T *rettv)); static void f_pathshorten __ARGS((typval_T *argvars, typval_T *rettv)); static void f_prevnonblank __ARGS((typval_T *argvars, typval_T *rettv)); static void f_printf __ARGS((typval_T *argvars, typval_T *rettv)); static void f_pumvisible __ARGS((typval_T *argvars, typval_T *rettv)); static void f_range __ARGS((typval_T *argvars, typval_T *rettv)); static void f_readfile __ARGS((typval_T *argvars, typval_T *rettv)); static void f_reltime __ARGS((typval_T *argvars, typval_T *rettv)); static void f_reltimestr __ARGS((typval_T *argvars, typval_T *rettv)); static void f_remote_expr __ARGS((typval_T *argvars, typval_T *rettv)); static void f_remote_foreground __ARGS((typval_T *argvars, typval_T *rettv)); static void f_remote_peek __ARGS((typval_T *argvars, typval_T *rettv)); static void f_remote_read __ARGS((typval_T *argvars, typval_T *rettv)); static void f_remote_send __ARGS((typval_T *argvars, typval_T *rettv)); static void f_remove __ARGS((typval_T *argvars, typval_T *rettv)); static void f_rename __ARGS((typval_T *argvars, typval_T *rettv)); static void f_repeat __ARGS((typval_T *argvars, typval_T *rettv)); static void f_resolve __ARGS((typval_T *argvars, typval_T *rettv)); static void f_reverse __ARGS((typval_T *argvars, typval_T *rettv)); static void f_search __ARGS((typval_T *argvars, typval_T *rettv)); static void f_searchdecl __ARGS((typval_T *argvars, typval_T *rettv)); static void f_searchpair __ARGS((typval_T *argvars, typval_T *rettv)); static void f_searchpairpos __ARGS((typval_T *argvars, typval_T *rettv)); static void f_searchpos __ARGS((typval_T *argvars, typval_T *rettv)); static void f_server2client __ARGS((typval_T *argvars, typval_T *rettv)); static void f_serverlist __ARGS((typval_T *argvars, typval_T *rettv)); static void f_setbufvar __ARGS((typval_T *argvars, typval_T *rettv)); static void f_setcmdpos __ARGS((typval_T *argvars, typval_T *rettv)); static void f_setline __ARGS((typval_T *argvars, typval_T *rettv)); static void f_setloclist __ARGS((typval_T *argvars, typval_T *rettv)); static void f_setpos __ARGS((typval_T *argvars, typval_T *rettv)); static void f_setqflist __ARGS((typval_T *argvars, typval_T *rettv)); static void f_setreg __ARGS((typval_T *argvars, typval_T *rettv)); static void f_settabwinvar __ARGS((typval_T *argvars, typval_T *rettv)); static void f_setwinvar __ARGS((typval_T *argvars, typval_T *rettv)); static void f_shellescape __ARGS((typval_T *argvars, typval_T *rettv)); static void f_simplify __ARGS((typval_T *argvars, typval_T *rettv)); static void f_sort __ARGS((typval_T *argvars, typval_T *rettv)); static void f_soundfold __ARGS((typval_T *argvars, typval_T *rettv)); static void f_spellbadword __ARGS((typval_T *argvars, typval_T *rettv)); static void f_spellsuggest __ARGS((typval_T *argvars, typval_T *rettv)); static void f_split __ARGS((typval_T *argvars, typval_T *rettv)); static void f_str2nr __ARGS((typval_T *argvars, typval_T *rettv)); #ifdef HAVE_STRFTIME static void f_strftime __ARGS((typval_T *argvars, typval_T *rettv)); #endif static void f_stridx __ARGS((typval_T *argvars, typval_T *rettv)); static void f_string __ARGS((typval_T *argvars, typval_T *rettv)); static void f_strlen __ARGS((typval_T *argvars, typval_T *rettv)); static void f_strpart __ARGS((typval_T *argvars, typval_T *rettv)); static void f_strridx __ARGS((typval_T *argvars, typval_T *rettv)); static void f_strtrans __ARGS((typval_T *argvars, typval_T *rettv)); static void f_submatch __ARGS((typval_T *argvars, typval_T *rettv)); static void f_substitute __ARGS((typval_T *argvars, typval_T *rettv)); static void f_synID __ARGS((typval_T *argvars, typval_T *rettv)); static void f_synIDattr __ARGS((typval_T *argvars, typval_T *rettv)); static void f_synIDtrans __ARGS((typval_T *argvars, typval_T *rettv)); static void f_system __ARGS((typval_T *argvars, typval_T *rettv)); static void f_tabpagebuflist __ARGS((typval_T *argvars, typval_T *rettv)); static void f_tabpagenr __ARGS((typval_T *argvars, typval_T *rettv)); static void f_tabpagewinnr __ARGS((typval_T *argvars, typval_T *rettv)); static void f_taglist __ARGS((typval_T *argvars, typval_T *rettv)); static void f_tagfiles __ARGS((typval_T *argvars, typval_T *rettv)); static void f_tempname __ARGS((typval_T *argvars, typval_T *rettv)); static void f_test __ARGS((typval_T *argvars, typval_T *rettv)); static void f_tolower __ARGS((typval_T *argvars, typval_T *rettv)); static void f_toupper __ARGS((typval_T *argvars, typval_T *rettv)); static void f_tr __ARGS((typval_T *argvars, typval_T *rettv)); static void f_type __ARGS((typval_T *argvars, typval_T *rettv)); static void f_values __ARGS((typval_T *argvars, typval_T *rettv)); static void f_virtcol __ARGS((typval_T *argvars, typval_T *rettv)); static void f_visualmode __ARGS((typval_T *argvars, typval_T *rettv)); static void f_winbufnr __ARGS((typval_T *argvars, typval_T *rettv)); static void f_wincol __ARGS((typval_T *argvars, typval_T *rettv)); static void f_winheight __ARGS((typval_T *argvars, typval_T *rettv)); static void f_winline __ARGS((typval_T *argvars, typval_T *rettv)); static void f_winnr __ARGS((typval_T *argvars, typval_T *rettv)); static void f_winrestcmd __ARGS((typval_T *argvars, typval_T *rettv)); static void f_winrestview __ARGS((typval_T *argvars, typval_T *rettv)); static void f_winsaveview __ARGS((typval_T *argvars, typval_T *rettv)); static void f_winwidth __ARGS((typval_T *argvars, typval_T *rettv)); static void f_writefile __ARGS((typval_T *argvars, typval_T *rettv)); static int list2fpos __ARGS((typval_T *arg, pos_T *posp, int *fnump)); static pos_T *var2fpos __ARGS((typval_T *varp, int lnum, int *fnum)); static int get_env_len __ARGS((char_u **arg)); static int get_id_len __ARGS((char_u **arg)); static int get_name_len __ARGS((char_u **arg, char_u **alias, int evaluate, int verbose)); static char_u *find_name_end __ARGS((char_u *arg, char_u **expr_start, char_u **expr_end, int flags)); #define FNE_INCL_BR 1 /* find_name_end(): include [] in name */ #define FNE_CHECK_START 2 /* find_name_end(): check name starts with valid character */ static char_u * make_expanded_name __ARGS((char_u *in_start, char_u *expr_start, char_u *expr_end, char_u *in_end)); static int eval_isnamec __ARGS((int c)); static int eval_isnamec1 __ARGS((int c)); static int get_var_tv __ARGS((char_u *name, int len, typval_T *rettv, int verbose)); static int handle_subscript __ARGS((char_u **arg, typval_T *rettv, int evaluate, int verbose)); static typval_T *alloc_tv __ARGS((void)); static typval_T *alloc_string_tv __ARGS((char_u *string)); static void init_tv __ARGS((typval_T *varp)); static long get_tv_number __ARGS((typval_T *varp)); static linenr_T get_tv_lnum __ARGS((typval_T *argvars)); static linenr_T get_tv_lnum_buf __ARGS((typval_T *argvars, buf_T *buf)); static char_u *get_tv_string __ARGS((typval_T *varp)); static char_u *get_tv_string_buf __ARGS((typval_T *varp, char_u *buf)); static char_u *get_tv_string_buf_chk __ARGS((typval_T *varp, char_u *buf)); static dictitem_T *find_var __ARGS((char_u *name, hashtab_T **htp)); static dictitem_T *find_var_in_ht __ARGS((hashtab_T *ht, char_u *varname, int writing)); static hashtab_T *find_var_ht __ARGS((char_u *name, char_u **varname)); static void vars_clear_ext __ARGS((hashtab_T *ht, int free_val)); static void delete_var __ARGS((hashtab_T *ht, hashitem_T *hi)); static void list_one_var __ARGS((dictitem_T *v, char_u *prefix)); static void list_one_var_a __ARGS((char_u *prefix, char_u *name, int type, char_u *string)); static void set_var __ARGS((char_u *name, typval_T *varp, int copy)); static int var_check_ro __ARGS((int flags, char_u *name)); static int var_check_fixed __ARGS((int flags, char_u *name)); static int tv_check_lock __ARGS((int lock, char_u *name)); static void copy_tv __ARGS((typval_T *from, typval_T *to)); static int item_copy __ARGS((typval_T *from, typval_T *to, int deep, int copyID)); static char_u *find_option_end __ARGS((char_u **arg, int *opt_flags)); static char_u *trans_function_name __ARGS((char_u **pp, int skip, int flags, funcdict_T *fd)); static int eval_fname_script __ARGS((char_u *p)); static int eval_fname_sid __ARGS((char_u *p)); static void list_func_head __ARGS((ufunc_T *fp, int indent)); static ufunc_T *find_func __ARGS((char_u *name)); static int function_exists __ARGS((char_u *name)); static int builtin_function __ARGS((char_u *name)); #ifdef FEAT_PROFILE static void func_do_profile __ARGS((ufunc_T *fp)); static void prof_sort_list __ARGS((FILE *fd, ufunc_T **sorttab, int st_len, char *title, int prefer_self)); static void prof_func_line __ARGS((FILE *fd, int count, proftime_T *total, proftime_T *self, int prefer_self)); static int # ifdef __BORLANDC__ _RTLENTRYF # endif prof_total_cmp __ARGS((const void *s1, const void *s2)); static int # ifdef __BORLANDC__ _RTLENTRYF # endif prof_self_cmp __ARGS((const void *s1, const void *s2)); #endif static int script_autoload __ARGS((char_u *name, int reload)); static char_u *autoload_name __ARGS((char_u *name)); static void cat_func_name __ARGS((char_u *buf, ufunc_T *fp)); static void func_free __ARGS((ufunc_T *fp)); static void func_unref __ARGS((char_u *name)); static void func_ref __ARGS((char_u *name)); static void call_user_func __ARGS((ufunc_T *fp, int argcount, typval_T *argvars, typval_T *rettv, linenr_T firstline, linenr_T lastline, dict_T *selfdict)); static void add_nr_var __ARGS((dict_T *dp, dictitem_T *v, char *name, varnumber_T nr)); static win_T *find_win_by_nr __ARGS((typval_T *vp, tabpage_T *tp)); static void getwinvar __ARGS((typval_T *argvars, typval_T *rettv, int off)); static int searchpair_cmn __ARGS((typval_T *argvars, pos_T *match_pos)); static int search_cmn __ARGS((typval_T *argvars, pos_T *match_pos, int *flagsp)); static void setwinvar __ARGS((typval_T *argvars, typval_T *rettv, int off)); /* Character used as separated in autoload function/variable names. */ #define AUTOLOAD_CHAR '#' /* * Initialize the global and v: variables. */ void eval_init() { int i; struct vimvar *p; init_var_dict(&globvardict, &globvars_var); init_var_dict(&vimvardict, &vimvars_var); hash_init(&compat_hashtab); hash_init(&func_hashtab); for (i = 0; i < VV_LEN; ++i) { p = &vimvars[i]; STRCPY(p->vv_di.di_key, p->vv_name); if (p->vv_flags & VV_RO) p->vv_di.di_flags = DI_FLAGS_RO | DI_FLAGS_FIX; else if (p->vv_flags & VV_RO_SBX) p->vv_di.di_flags = DI_FLAGS_RO_SBX | DI_FLAGS_FIX; else p->vv_di.di_flags = DI_FLAGS_FIX; /* add to v: scope dict, unless the value is not always available */ if (p->vv_type != VAR_UNKNOWN) hash_add(&vimvarht, p->vv_di.di_key); if (p->vv_flags & VV_COMPAT) /* add to compat scope dict */ hash_add(&compat_hashtab, p->vv_di.di_key); } } #if defined(EXITFREE) || defined(PROTO) void eval_clear() { int i; struct vimvar *p; for (i = 0; i < VV_LEN; ++i) { p = &vimvars[i]; if (p->vv_di.di_tv.v_type == VAR_STRING) { vim_free(p->vv_di.di_tv.vval.v_string); p->vv_di.di_tv.vval.v_string = NULL; } } hash_clear(&vimvarht); hash_clear(&compat_hashtab); /* script-local variables */ for (i = 1; i <= ga_scripts.ga_len; ++i) vars_clear(&SCRIPT_VARS(i)); ga_clear(&ga_scripts); free_scriptnames(); /* global variables */ vars_clear(&globvarht); /* functions */ free_all_functions(); hash_clear(&func_hashtab); /* autoloaded script names */ ga_clear_strings(&ga_loaded); /* unreferenced lists and dicts */ (void)garbage_collect(); } #endif /* * Return the name of the executed function. */ char_u * func_name(cookie) void *cookie; { return ((funccall_T *)cookie)->func->uf_name; } /* * Return the address holding the next breakpoint line for a funccall cookie. */ linenr_T * func_breakpoint(cookie) void *cookie; { return &((funccall_T *)cookie)->breakpoint; } /* * Return the address holding the debug tick for a funccall cookie. */ int * func_dbg_tick(cookie) void *cookie; { return &((funccall_T *)cookie)->dbg_tick; } /* * Return the nesting level for a funccall cookie. */ int func_level(cookie) void *cookie; { return ((funccall_T *)cookie)->level; } /* pointer to funccal for currently active function */ funccall_T *current_funccal = NULL; /* * Return TRUE when a function was ended by a ":return" command. */ int current_func_returned() { return current_funccal->returned; } /* * Set an internal variable to a string value. Creates the variable if it does * not already exist. */ void set_internal_string_var(name, value) char_u *name; char_u *value; { char_u *val; typval_T *tvp; val = vim_strsave(value); if (val != NULL) { tvp = alloc_string_tv(val); if (tvp != NULL) { set_var(name, tvp, FALSE); free_tv(tvp); } } } static lval_T *redir_lval = NULL; static garray_T redir_ga; /* only valid when redir_lval is not NULL */ static char_u *redir_endp = NULL; static char_u *redir_varname = NULL; /* * Start recording command output to a variable * Returns OK if successfully completed the setup. FAIL otherwise. */ int var_redir_start(name, append) char_u *name; int append; /* append to an existing variable */ { int save_emsg; int err; typval_T tv; /* Make sure a valid variable name is specified */ if (!eval_isnamec1(*name)) { EMSG(_(e_invarg)); return FAIL; } redir_varname = vim_strsave(name); if (redir_varname == NULL) return FAIL; redir_lval = (lval_T *)alloc_clear((unsigned)sizeof(lval_T)); if (redir_lval == NULL) { var_redir_stop(); return FAIL; } /* The output is stored in growarray "redir_ga" until redirection ends. */ ga_init2(&redir_ga, (int)sizeof(char), 500); /* Parse the variable name (can be a dict or list entry). */ redir_endp = get_lval(redir_varname, NULL, redir_lval, FALSE, FALSE, FALSE, FNE_CHECK_START); if (redir_endp == NULL || redir_lval->ll_name == NULL || *redir_endp != NUL) { if (redir_endp != NULL && *redir_endp != NUL) /* Trailing characters are present after the variable name */ EMSG(_(e_trailing)); else EMSG(_(e_invarg)); var_redir_stop(); return FAIL; } /* check if we can write to the variable: set it to or append an empty * string */ save_emsg = did_emsg; did_emsg = FALSE; tv.v_type = VAR_STRING; tv.vval.v_string = (char_u *)""; if (append) set_var_lval(redir_lval, redir_endp, &tv, TRUE, (char_u *)"."); else set_var_lval(redir_lval, redir_endp, &tv, TRUE, (char_u *)"="); err = did_emsg; did_emsg |= save_emsg; if (err) { var_redir_stop(); return FAIL; } if (redir_lval->ll_newkey != NULL) { /* Dictionary item was created, don't do it again. */ vim_free(redir_lval->ll_newkey); redir_lval->ll_newkey = NULL; } return OK; } /* * Append "value[value_len]" to the variable set by var_redir_start(). * The actual appending is postponed until redirection ends, because the value * appended may in fact be the string we write to, changing it may cause freed * memory to be used: * :redir => foo * :let foo * :redir END */ void var_redir_str(value, value_len) char_u *value; int value_len; { size_t len; if (redir_lval == NULL) return; if (value_len == -1) len = STRLEN(value); /* Append the entire string */ else len = value_len; /* Append only "value_len" characters */ if (ga_grow(&redir_ga, (int)len) == OK) { mch_memmove((char *)redir_ga.ga_data + redir_ga.ga_len, value, len); redir_ga.ga_len += (int)len; } else var_redir_stop(); } /* * Stop redirecting command output to a variable. */ void var_redir_stop() { typval_T tv; if (redir_lval != NULL) { /* Append the trailing NUL. */ ga_append(&redir_ga, NUL); /* Assign the text to the variable. */ tv.v_type = VAR_STRING; tv.vval.v_string = redir_ga.ga_data; set_var_lval(redir_lval, redir_endp, &tv, FALSE, (char_u *)"."); vim_free(tv.vval.v_string); clear_lval(redir_lval); vim_free(redir_lval); redir_lval = NULL; } vim_free(redir_varname); redir_varname = NULL; } # if defined(FEAT_MBYTE) || defined(PROTO) int eval_charconvert(enc_from, enc_to, fname_from, fname_to) char_u *enc_from; char_u *enc_to; char_u *fname_from; char_u *fname_to; { int err = FALSE; set_vim_var_string(VV_CC_FROM, enc_from, -1); set_vim_var_string(VV_CC_TO, enc_to, -1); set_vim_var_string(VV_FNAME_IN, fname_from, -1); set_vim_var_string(VV_FNAME_OUT, fname_to, -1); if (eval_to_bool(p_ccv, &err, NULL, FALSE)) err = TRUE; set_vim_var_string(VV_CC_FROM, NULL, -1); set_vim_var_string(VV_CC_TO, NULL, -1); set_vim_var_string(VV_FNAME_IN, NULL, -1); set_vim_var_string(VV_FNAME_OUT, NULL, -1); if (err) return FAIL; return OK; } # endif # if defined(FEAT_POSTSCRIPT) || defined(PROTO) int eval_printexpr(fname, args) char_u *fname; char_u *args; { int err = FALSE; set_vim_var_string(VV_FNAME_IN, fname, -1); set_vim_var_string(VV_CMDARG, args, -1); if (eval_to_bool(p_pexpr, &err, NULL, FALSE)) err = TRUE; set_vim_var_string(VV_FNAME_IN, NULL, -1); set_vim_var_string(VV_CMDARG, NULL, -1); if (err) { mch_remove(fname); return FAIL; } return OK; } # endif # if defined(FEAT_DIFF) || defined(PROTO) void eval_diff(origfile, newfile, outfile) char_u *origfile; char_u *newfile; char_u *outfile; { int err = FALSE; set_vim_var_string(VV_FNAME_IN, origfile, -1); set_vim_var_string(VV_FNAME_NEW, newfile, -1); set_vim_var_string(VV_FNAME_OUT, outfile, -1); (void)eval_to_bool(p_dex, &err, NULL, FALSE); set_vim_var_string(VV_FNAME_IN, NULL, -1); set_vim_var_string(VV_FNAME_NEW, NULL, -1); set_vim_var_string(VV_FNAME_OUT, NULL, -1); } void eval_patch(origfile, difffile, outfile) char_u *origfile; char_u *difffile; char_u *outfile; { int err; set_vim_var_string(VV_FNAME_IN, origfile, -1); set_vim_var_string(VV_FNAME_DIFF, difffile, -1); set_vim_var_string(VV_FNAME_OUT, outfile, -1); (void)eval_to_bool(p_pex, &err, NULL, FALSE); set_vim_var_string(VV_FNAME_IN, NULL, -1); set_vim_var_string(VV_FNAME_DIFF, NULL, -1); set_vim_var_string(VV_FNAME_OUT, NULL, -1); } # endif /* * Top level evaluation function, returning a boolean. * Sets "error" to TRUE if there was an error. * Return TRUE or FALSE. */ int eval_to_bool(arg, error, nextcmd, skip) char_u *arg; int *error; char_u **nextcmd; int skip; /* only parse, don't execute */ { typval_T tv; int retval = FALSE; if (skip) ++emsg_skip; if (eval0(arg, &tv, nextcmd, !skip) == FAIL) *error = TRUE; else { *error = FALSE; if (!skip) { retval = (get_tv_number_chk(&tv, error) != 0); clear_tv(&tv); } } if (skip) --emsg_skip; return retval; } /* * Top level evaluation function, returning a string. If "skip" is TRUE, * only parsing to "nextcmd" is done, without reporting errors. Return * pointer to allocated memory, or NULL for failure or when "skip" is TRUE. */ char_u * eval_to_string_skip(arg, nextcmd, skip) char_u *arg; char_u **nextcmd; int skip; /* only parse, don't execute */ { typval_T tv; char_u *retval; if (skip) ++emsg_skip; if (eval0(arg, &tv, nextcmd, !skip) == FAIL || skip) retval = NULL; else { retval = vim_strsave(get_tv_string(&tv)); clear_tv(&tv); } if (skip) --emsg_skip; return retval; } /* * Skip over an expression at "*pp". * Return FAIL for an error, OK otherwise. */ int skip_expr(pp) char_u **pp; { typval_T rettv; *pp = skipwhite(*pp); return eval1(pp, &rettv, FALSE); } /* * Top level evaluation function, returning a string. * Return pointer to allocated memory, or NULL for failure. */ char_u * eval_to_string(arg, nextcmd, dolist) char_u *arg; char_u **nextcmd; int dolist; /* turn List into sequence of lines */ { typval_T tv; char_u *retval; garray_T ga; if (eval0(arg, &tv, nextcmd, TRUE) == FAIL) retval = NULL; else { if (dolist && tv.v_type == VAR_LIST) { ga_init2(&ga, (int)sizeof(char), 80); list_join(&ga, tv.vval.v_list, (char_u *)"\n", TRUE, 0); ga_append(&ga, NUL); retval = (char_u *)ga.ga_data; } else retval = vim_strsave(get_tv_string(&tv)); clear_tv(&tv); } return retval; } /* * Call eval_to_string() without using current local variables and using * textlock. When "use_sandbox" is TRUE use the sandbox. */ char_u * eval_to_string_safe(arg, nextcmd, use_sandbox) char_u *arg; char_u **nextcmd; int use_sandbox; { char_u *retval; void *save_funccalp; save_funccalp = save_funccal(); if (use_sandbox) ++sandbox; ++textlock; retval = eval_to_string(arg, nextcmd, FALSE); if (use_sandbox) --sandbox; --textlock; restore_funccal(save_funccalp); return retval; } /* * Top level evaluation function, returning a number. * Evaluates "expr" silently. * Returns -1 for an error. */ int eval_to_number(expr) char_u *expr; { typval_T rettv; int retval; char_u *p = skipwhite(expr); ++emsg_off; if (eval1(&p, &rettv, TRUE) == FAIL) retval = -1; else { retval = get_tv_number_chk(&rettv, NULL); clear_tv(&rettv); } --emsg_off; return retval; } /* * Prepare v: variable "idx" to be used. * Save the current typeval in "save_tv". * When not used yet add the variable to the v: hashtable. */ static void prepare_vimvar(idx, save_tv) int idx; typval_T *save_tv; { *save_tv = vimvars[idx].vv_tv; if (vimvars[idx].vv_type == VAR_UNKNOWN) hash_add(&vimvarht, vimvars[idx].vv_di.di_key); } /* * Restore v: variable "idx" to typeval "save_tv". * When no longer defined, remove the variable from the v: hashtable. */ static void restore_vimvar(idx, save_tv) int idx; typval_T *save_tv; { hashitem_T *hi; clear_tv(&vimvars[idx].vv_tv); vimvars[idx].vv_tv = *save_tv; if (vimvars[idx].vv_type == VAR_UNKNOWN) { hi = hash_find(&vimvarht, vimvars[idx].vv_di.di_key); if (HASHITEM_EMPTY(hi)) EMSG2(_(e_intern2), "restore_vimvar()"); else hash_remove(&vimvarht, hi); } } #if defined(FEAT_SPELL) || defined(PROTO) /* * Evaluate an expression to a list with suggestions. * For the "expr:" part of 'spellsuggest'. */ list_T * eval_spell_expr(badword, expr) char_u *badword; char_u *expr; { typval_T save_val; typval_T rettv; list_T *list = NULL; char_u *p = skipwhite(expr); /* Set "v:val" to the bad word. */ prepare_vimvar(VV_VAL, &save_val); vimvars[VV_VAL].vv_type = VAR_STRING; vimvars[VV_VAL].vv_str = badword; if (p_verbose == 0) ++emsg_off; if (eval1(&p, &rettv, TRUE) == OK) { if (rettv.v_type != VAR_LIST) clear_tv(&rettv); else list = rettv.vval.v_list; } if (p_verbose == 0) --emsg_off; vimvars[VV_VAL].vv_str = NULL; restore_vimvar(VV_VAL, &save_val); return list; } /* * "list" is supposed to contain two items: a word and a number. Return the * word in "pp" and the number as the return value. * Return -1 if anything isn't right. * Used to get the good word and score from the eval_spell_expr() result. */ int get_spellword(list, pp) list_T *list; char_u **pp; { listitem_T *li; li = list->lv_first; if (li == NULL) return -1; *pp = get_tv_string(&li->li_tv); li = li->li_next; if (li == NULL) return -1; return get_tv_number(&li->li_tv); } #endif /* * Top level evaluation function. * Returns an allocated typval_T with the result. * Returns NULL when there is an error. */ typval_T * eval_expr(arg, nextcmd) char_u *arg; char_u **nextcmd; { typval_T *tv; tv = (typval_T *)alloc(sizeof(typval_T)); if (tv != NULL && eval0(arg, tv, nextcmd, TRUE) == FAIL) { vim_free(tv); tv = NULL; } return tv; } #if (defined(FEAT_USR_CMDS) && defined(FEAT_CMDL_COMPL)) || defined(PROTO) /* * Call some vimL function and return the result in "*rettv". * Uses argv[argc] for the function arguments. * Returns OK or FAIL. */ static int call_vim_function(func, argc, argv, safe, rettv) char_u *func; int argc; char_u **argv; int safe; /* use the sandbox */ typval_T *rettv; { typval_T *argvars; long n; int len; int i; int doesrange; void *save_funccalp = NULL; int ret; argvars = (typval_T *)alloc((unsigned)((argc + 1) * sizeof(typval_T))); if (argvars == NULL) return FAIL; for (i = 0; i < argc; i++) { /* Pass a NULL or empty argument as an empty string */ if (argv[i] == NULL || *argv[i] == NUL) { argvars[i].v_type = VAR_STRING; argvars[i].vval.v_string = (char_u *)""; continue; } /* Recognize a number argument, the others must be strings. */ vim_str2nr(argv[i], NULL, &len, TRUE, TRUE, &n, NULL); if (len != 0 && len == (int)STRLEN(argv[i])) { argvars[i].v_type = VAR_NUMBER; argvars[i].vval.v_number = n; } else { argvars[i].v_type = VAR_STRING; argvars[i].vval.v_string = argv[i]; } } if (safe) { save_funccalp = save_funccal(); ++sandbox; } rettv->v_type = VAR_UNKNOWN; /* clear_tv() uses this */ ret = call_func(func, (int)STRLEN(func), rettv, argc, argvars, curwin->w_cursor.lnum, curwin->w_cursor.lnum, &doesrange, TRUE, NULL); if (safe) { --sandbox; restore_funccal(save_funccalp); } vim_free(argvars); if (ret == FAIL) clear_tv(rettv); return ret; } /* * Call vimL function "func" and return the result as a string. * Returns NULL when calling the function fails. * Uses argv[argc] for the function arguments. */ void * call_func_retstr(func, argc, argv, safe) char_u *func; int argc; char_u **argv; int safe; /* use the sandbox */ { typval_T rettv; char_u *retval; if (call_vim_function(func, argc, argv, safe, &rettv) == FAIL) return NULL; retval = vim_strsave(get_tv_string(&rettv)); clear_tv(&rettv); return retval; } #if defined(FEAT_COMPL_FUNC) || defined(PROTO) /* * Call vimL function "func" and return the result as a number. * Returns -1 when calling the function fails. * Uses argv[argc] for the function arguments. */ long call_func_retnr(func, argc, argv, safe) char_u *func; int argc; char_u **argv; int safe; /* use the sandbox */ { typval_T rettv; long retval; if (call_vim_function(func, argc, argv, safe, &rettv) == FAIL) return -1; retval = get_tv_number_chk(&rettv, NULL); clear_tv(&rettv); return retval; } #endif /* * Call vimL function "func" and return the result as a list * Uses argv[argc] for the function arguments. */ void * call_func_retlist(func, argc, argv, safe) char_u *func; int argc; char_u **argv; int safe; /* use the sandbox */ { typval_T rettv; if (call_vim_function(func, argc, argv, safe, &rettv) == FAIL) return NULL; if (rettv.v_type != VAR_LIST) { clear_tv(&rettv); return NULL; } return rettv.vval.v_list; } #endif /* * Save the current function call pointer, and set it to NULL. * Used when executing autocommands and for ":source". */ void * save_funccal() { funccall_T *fc = current_funccal; current_funccal = NULL; return (void *)fc; } void restore_funccal(vfc) void *vfc; { funccall_T *fc = (funccall_T *)vfc; current_funccal = fc; } #if defined(FEAT_PROFILE) || defined(PROTO) /* * Prepare profiling for entering a child or something else that is not * counted for the script/function itself. * Should always be called in pair with prof_child_exit(). */ void prof_child_enter(tm) proftime_T *tm; /* place to store waittime */ { funccall_T *fc = current_funccal; if (fc != NULL && fc->func->uf_profiling) profile_start(&fc->prof_child); script_prof_save(tm); } /* * Take care of time spent in a child. * Should always be called after prof_child_enter(). */ void prof_child_exit(tm) proftime_T *tm; /* where waittime was stored */ { funccall_T *fc = current_funccal; if (fc != NULL && fc->func->uf_profiling) { profile_end(&fc->prof_child); profile_sub_wait(tm, &fc->prof_child); /* don't count waiting time */ profile_add(&fc->func->uf_tm_children, &fc->prof_child); profile_add(&fc->func->uf_tml_children, &fc->prof_child); } script_prof_restore(tm); } #endif #ifdef FEAT_FOLDING /* * Evaluate 'foldexpr'. Returns the foldlevel, and any character preceding * it in "*cp". Doesn't give error messages. */ int eval_foldexpr(arg, cp) char_u *arg; int *cp; { typval_T tv; int retval; char_u *s; int use_sandbox = was_set_insecurely((char_u *)"foldexpr", OPT_LOCAL); ++emsg_off; if (use_sandbox) ++sandbox; ++textlock; *cp = NUL; if (eval0(arg, &tv, NULL, TRUE) == FAIL) retval = 0; else { /* If the result is a number, just return the number. */ if (tv.v_type == VAR_NUMBER) retval = tv.vval.v_number; else if (tv.v_type != VAR_STRING || tv.vval.v_string == NULL) retval = 0; else { /* If the result is a string, check if there is a non-digit before * the number. */ s = tv.vval.v_string; if (!VIM_ISDIGIT(*s) && *s != '-') *cp = *s++; retval = atol((char *)s); } clear_tv(&tv); } --emsg_off; if (use_sandbox) --sandbox; --textlock; return retval; } #endif /* * ":let" list all variable values * ":let var1 var2" list variable values * ":let var = expr" assignment command. * ":let var += expr" assignment command. * ":let var -= expr" assignment command. * ":let var .= expr" assignment command. * ":let [var1, var2] = expr" unpack list. */ void ex_let(eap) exarg_T *eap; { char_u *arg = eap->arg; char_u *expr = NULL; typval_T rettv; int i; int var_count = 0; int semicolon = 0; char_u op[2]; char_u *argend; argend = skip_var_list(arg, &var_count, &semicolon); if (argend == NULL) return; if (argend > arg && argend[-1] == '.') /* for var.='str' */ --argend; expr = vim_strchr(argend, '='); if (expr == NULL) { /* * ":let" without "=": list variables */ if (*arg == '[') EMSG(_(e_invarg)); else if (!ends_excmd(*arg)) /* ":let var1 var2" */ arg = list_arg_vars(eap, arg); else if (!eap->skip) { /* ":let" */ list_glob_vars(); list_buf_vars(); list_win_vars(); #ifdef FEAT_WINDOWS list_tab_vars(); #endif list_script_vars(); list_func_vars(); list_vim_vars(); } eap->nextcmd = check_nextcmd(arg); } else { op[0] = '='; op[1] = NUL; if (expr > argend) { if (vim_strchr((char_u *)"+-.", expr[-1]) != NULL) op[0] = expr[-1]; /* +=, -= or .= */ } expr = skipwhite(expr + 1); if (eap->skip) ++emsg_skip; i = eval0(expr, &rettv, &eap->nextcmd, !eap->skip); if (eap->skip) { if (i != FAIL) clear_tv(&rettv); --emsg_skip; } else if (i != FAIL) { (void)ex_let_vars(eap->arg, &rettv, FALSE, semicolon, var_count, op); clear_tv(&rettv); } } } /* * Assign the typevalue "tv" to the variable or variables at "arg_start". * Handles both "var" with any type and "[var, var; var]" with a list type. * When "nextchars" is not NULL it points to a string with characters that * must appear after the variable(s). Use "+", "-" or "." for add, subtract * or concatenate. * Returns OK or FAIL; */ static int ex_let_vars(arg_start, tv, copy, semicolon, var_count, nextchars) char_u *arg_start; typval_T *tv; int copy; /* copy values from "tv", don't move */ int semicolon; /* from skip_var_list() */ int var_count; /* from skip_var_list() */ char_u *nextchars; { char_u *arg = arg_start; list_T *l; int i; listitem_T *item; typval_T ltv; if (*arg != '[') { /* * ":let var = expr" or ":for var in list" */ if (ex_let_one(arg, tv, copy, nextchars, nextchars) == NULL) return FAIL; return OK; } /* * ":let [v1, v2] = list" or ":for [v1, v2] in listlist" */ if (tv->v_type != VAR_LIST || (l = tv->vval.v_list) == NULL) { EMSG(_(e_listreq)); return FAIL; } i = list_len(l); if (semicolon == 0 && var_count < i) { EMSG(_("E687: Less targets than List items")); return FAIL; } if (var_count - semicolon > i) { EMSG(_("E688: More targets than List items")); return FAIL; } item = l->lv_first; while (*arg != ']') { arg = skipwhite(arg + 1); arg = ex_let_one(arg, &item->li_tv, TRUE, (char_u *)",;]", nextchars); item = item->li_next; if (arg == NULL) return FAIL; arg = skipwhite(arg); if (*arg == ';') { /* Put the rest of the list (may be empty) in the var after ';'. * Create a new list for this. */ l = list_alloc(); if (l == NULL) return FAIL; while (item != NULL) { list_append_tv(l, &item->li_tv); item = item->li_next; } ltv.v_type = VAR_LIST; ltv.v_lock = 0; ltv.vval.v_list = l; l->lv_refcount = 1; arg = ex_let_one(skipwhite(arg + 1), <v, FALSE, (char_u *)"]", nextchars); clear_tv(<v); if (arg == NULL) return FAIL; break; } else if (*arg != ',' && *arg != ']') { EMSG2(_(e_intern2), "ex_let_vars()"); return FAIL; } } return OK; } /* * Skip over assignable variable "var" or list of variables "[var, var]". * Used for ":let varvar = expr" and ":for varvar in expr". * For "[var, var]" increment "*var_count" for each variable. * for "[var, var; var]" set "semicolon". * Return NULL for an error. */ static char_u * skip_var_list(arg, var_count, semicolon) char_u *arg; int *var_count; int *semicolon; { char_u *p, *s; if (*arg == '[') { /* "[var, var]": find the matching ']'. */ p = arg; for (;;) { p = skipwhite(p + 1); /* skip whites after '[', ';' or ',' */ s = skip_var_one(p); if (s == p) { EMSG2(_(e_invarg2), p); return NULL; } ++*var_count; p = skipwhite(s); if (*p == ']') break; else if (*p == ';') { if (*semicolon == 1) { EMSG(_("Double ; in list of variables")); return NULL; } *semicolon = 1; } else if (*p != ',') { EMSG2(_(e_invarg2), p); return NULL; } } return p + 1; } else return skip_var_one(arg); } /* * Skip one (assignable) variable name, including @r, $VAR, &option, d.key, * l[idx]. */ static char_u * skip_var_one(arg) char_u *arg; { if (*arg == '@' && arg[1] != NUL) return arg + 2; return find_name_end(*arg == '$' || *arg == '&' ? arg + 1 : arg, NULL, NULL, FNE_INCL_BR | FNE_CHECK_START); } /* * List variables for hashtab "ht" with prefix "prefix". * If "empty" is TRUE also list NULL strings as empty strings. */ static void list_hashtable_vars(ht, prefix, empty) hashtab_T *ht; char_u *prefix; int empty; { hashitem_T *hi; dictitem_T *di; int todo; todo = (int)ht->ht_used; for (hi = ht->ht_array; todo > 0 && !got_int; ++hi) { if (!HASHITEM_EMPTY(hi)) { --todo; di = HI2DI(hi); if (empty || di->di_tv.v_type != VAR_STRING || di->di_tv.vval.v_string != NULL) list_one_var(di, prefix); } } } /* * List global variables. */ static void list_glob_vars() { list_hashtable_vars(&globvarht, (char_u *)"", TRUE); } /* * List buffer variables. */ static void list_buf_vars() { char_u numbuf[NUMBUFLEN]; list_hashtable_vars(&curbuf->b_vars.dv_hashtab, (char_u *)"b:", TRUE); sprintf((char *)numbuf, "%ld", (long)curbuf->b_changedtick); list_one_var_a((char_u *)"b:", (char_u *)"changedtick", VAR_NUMBER, numbuf); } /* * List window variables. */ static void list_win_vars() { list_hashtable_vars(&curwin->w_vars.dv_hashtab, (char_u *)"w:", TRUE); } #ifdef FEAT_WINDOWS /* * List tab page variables. */ static void list_tab_vars() { list_hashtable_vars(&curtab->tp_vars.dv_hashtab, (char_u *)"t:", TRUE); } #endif /* * List Vim variables. */ static void list_vim_vars() { list_hashtable_vars(&vimvarht, (char_u *)"v:", FALSE); } /* * List script-local variables, if there is a script. */ static void list_script_vars() { if (current_SID > 0 && current_SID <= ga_scripts.ga_len) list_hashtable_vars(&SCRIPT_VARS(current_SID), (char_u *)"s:", FALSE); } /* * List function variables, if there is a function. */ static void list_func_vars() { if (current_funccal != NULL) list_hashtable_vars(¤t_funccal->l_vars.dv_hashtab, (char_u *)"l:", FALSE); } /* * List variables in "arg". */ static char_u * list_arg_vars(eap, arg) exarg_T *eap; char_u *arg; { int error = FALSE; int len; char_u *name; char_u *name_start; char_u *arg_subsc; char_u *tofree; typval_T tv; while (!ends_excmd(*arg) && !got_int) { if (error || eap->skip) { arg = find_name_end(arg, NULL, NULL, FNE_INCL_BR | FNE_CHECK_START); if (!vim_iswhite(*arg) && !ends_excmd(*arg)) { emsg_severe = TRUE; EMSG(_(e_trailing)); break; } } else { /* get_name_len() takes care of expanding curly braces */ name_start = name = arg; len = get_name_len(&arg, &tofree, TRUE, TRUE); if (len <= 0) { /* This is mainly to keep test 49 working: when expanding * curly braces fails overrule the exception error message. */ if (len < 0 && !aborting()) { emsg_severe = TRUE; EMSG2(_(e_invarg2), arg); break; } error = TRUE; } else { if (tofree != NULL) name = tofree; if (get_var_tv(name, len, &tv, TRUE) == FAIL) error = TRUE; else { /* handle d.key, l[idx], f(expr) */ arg_subsc = arg; if (handle_subscript(&arg, &tv, TRUE, TRUE) == FAIL) error = TRUE; else { if (arg == arg_subsc && len == 2 && name[1] == ':') { switch (*name) { case 'g': list_glob_vars(); break; case 'b': list_buf_vars(); break; case 'w': list_win_vars(); break; #ifdef FEAT_WINDOWS case 't': list_tab_vars(); break; #endif case 'v': list_vim_vars(); break; case 's': list_script_vars(); break; case 'l': list_func_vars(); break; default: EMSG2(_("E738: Can't list variables for %s"), name); } } else { char_u numbuf[NUMBUFLEN]; char_u *tf; int c; char_u *s; s = echo_string(&tv, &tf, numbuf, 0); c = *arg; *arg = NUL; list_one_var_a((char_u *)"", arg == arg_subsc ? name : name_start, tv.v_type, s == NULL ? (char_u *)"" : s); *arg = c; vim_free(tf); } clear_tv(&tv); } } } vim_free(tofree); } arg = skipwhite(arg); } return arg; } /* * Set one item of ":let var = expr" or ":let [v1, v2] = list" to its value. * Returns a pointer to the char just after the var name. * Returns NULL if there is an error. */ static char_u * ex_let_one(arg, tv, copy, endchars, op) char_u *arg; /* points to variable name */ typval_T *tv; /* value to assign to variable */ int copy; /* copy value from "tv" */ char_u *endchars; /* valid chars after variable name or NULL */ char_u *op; /* "+", "-", "." or NULL*/ { int c1; char_u *name; char_u *p; char_u *arg_end = NULL; int len; int opt_flags; char_u *tofree = NULL; /* * ":let $VAR = expr": Set environment variable. */ if (*arg == '$') { /* Find the end of the name. */ ++arg; name = arg; len = get_env_len(&arg); if (len == 0) EMSG2(_(e_invarg2), name - 1); else { if (op != NULL && (*op == '+' || *op == '-')) EMSG2(_(e_letwrong), op); else if (endchars != NULL && vim_strchr(endchars, *skipwhite(arg)) == NULL) EMSG(_(e_letunexp)); else { c1 = name[len]; name[len] = NUL; p = get_tv_string_chk(tv); if (p != NULL && op != NULL && *op == '.') { int mustfree = FALSE; char_u *s = vim_getenv(name, &mustfree); if (s != NULL) { p = tofree = concat_str(s, p); if (mustfree) vim_free(s); } } if (p != NULL) { vim_setenv(name, p); if (STRICMP(name, "HOME") == 0) init_homedir(); else if (didset_vim && STRICMP(name, "VIM") == 0) didset_vim = FALSE; else if (didset_vimruntime && STRICMP(name, "VIMRUNTIME") == 0) didset_vimruntime = FALSE; arg_end = arg; } name[len] = c1; vim_free(tofree); } } } /* * ":let &option = expr": Set option value. * ":let &l:option = expr": Set local option value. * ":let &g:option = expr": Set global option value. */ else if (*arg == '&') { /* Find the end of the name. */ p = find_option_end(&arg, &opt_flags); if (p == NULL || (endchars != NULL && vim_strchr(endchars, *skipwhite(p)) == NULL)) EMSG(_(e_letunexp)); else { long n; int opt_type; long numval; char_u *stringval = NULL; char_u *s; c1 = *p; *p = NUL; n = get_tv_number(tv); s = get_tv_string_chk(tv); /* != NULL if number or string */ if (s != NULL && op != NULL && *op != '=') { opt_type = get_option_value(arg, &numval, &stringval, opt_flags); if ((opt_type == 1 && *op == '.') || (opt_type == 0 && *op != '.')) EMSG2(_(e_letwrong), op); else { if (opt_type == 1) /* number */ { if (*op == '+') n = numval + n; else n = numval - n; } else if (opt_type == 0 && stringval != NULL) /* string */ { s = concat_str(stringval, s); vim_free(stringval); stringval = s; } } } if (s != NULL) { set_option_value(arg, n, s, opt_flags); arg_end = p; } *p = c1; vim_free(stringval); } } /* * ":let @r = expr": Set register contents. */ else if (*arg == '@') { ++arg; if (op != NULL && (*op == '+' || *op == '-')) EMSG2(_(e_letwrong), op); else if (endchars != NULL && vim_strchr(endchars, *skipwhite(arg + 1)) == NULL) EMSG(_(e_letunexp)); else { char_u *ptofree = NULL; char_u *s; p = get_tv_string_chk(tv); if (p != NULL && op != NULL && *op == '.') { s = get_reg_contents(*arg == '@' ? '"' : *arg, TRUE, TRUE); if (s != NULL) { p = ptofree = concat_str(s, p); vim_free(s); } } if (p != NULL) { write_reg_contents(*arg == '@' ? '"' : *arg, p, -1, FALSE); arg_end = arg + 1; } vim_free(ptofree); } } /* * ":let var = expr": Set internal variable. * ":let {expr} = expr": Idem, name made with curly braces */ else if (eval_isnamec1(*arg) || *arg == '{') { lval_T lv; p = get_lval(arg, tv, &lv, FALSE, FALSE, FALSE, FNE_CHECK_START); if (p != NULL && lv.ll_name != NULL) { if (endchars != NULL && vim_strchr(endchars, *skipwhite(p)) == NULL) EMSG(_(e_letunexp)); else { set_var_lval(&lv, p, tv, copy, op); arg_end = p; } } clear_lval(&lv); } else EMSG2(_(e_invarg2), arg); return arg_end; } /* * If "arg" is equal to "b:changedtick" give an error and return TRUE. */ static int check_changedtick(arg) char_u *arg; { if (STRNCMP(arg, "b:changedtick", 13) == 0 && !eval_isnamec(arg[13])) { EMSG2(_(e_readonlyvar), arg); return TRUE; } return FALSE; } /* * Get an lval: variable, Dict item or List item that can be assigned a value * to: "name", "na{me}", "name[expr]", "name[expr:expr]", "name[expr][expr]", * "name.key", "name.key[expr]" etc. * Indexing only works if "name" is an existing List or Dictionary. * "name" points to the start of the name. * If "rettv" is not NULL it points to the value to be assigned. * "unlet" is TRUE for ":unlet": slightly different behavior when something is * wrong; must end in space or cmd separator. * * Returns a pointer to just after the name, including indexes. * When an evaluation error occurs "lp->ll_name" is NULL; * Returns NULL for a parsing error. Still need to free items in "lp"! */ static char_u * get_lval(name, rettv, lp, unlet, skip, quiet, fne_flags) char_u *name; typval_T *rettv; lval_T *lp; int unlet; int skip; int quiet; /* don't give error messages */ int fne_flags; /* flags for find_name_end() */ { char_u *p; char_u *expr_start, *expr_end; int cc; dictitem_T *v; typval_T var1; typval_T var2; int empty1 = FALSE; listitem_T *ni; char_u *key = NULL; int len; hashtab_T *ht; /* Clear everything in "lp". */ vim_memset(lp, 0, sizeof(lval_T)); if (skip) { /* When skipping just find the end of the name. */ lp->ll_name = name; return find_name_end(name, NULL, NULL, FNE_INCL_BR | fne_flags); } /* Find the end of the name. */ p = find_name_end(name, &expr_start, &expr_end, fne_flags); if (expr_start != NULL) { /* Don't expand the name when we already know there is an error. */ if (unlet && !vim_iswhite(*p) && !ends_excmd(*p) && *p != '[' && *p != '.') { EMSG(_(e_trailing)); return NULL; } lp->ll_exp_name = make_expanded_name(name, expr_start, expr_end, p); if (lp->ll_exp_name == NULL) { /* Report an invalid expression in braces, unless the * expression evaluation has been cancelled due to an * aborting error, an interrupt, or an exception. */ if (!aborting() && !quiet) { emsg_severe = TRUE; EMSG2(_(e_invarg2), name); return NULL; } } lp->ll_name = lp->ll_exp_name; } else lp->ll_name = name; /* Without [idx] or .key we are done. */ if ((*p != '[' && *p != '.') || lp->ll_name == NULL) return p; cc = *p; *p = NUL; v = find_var(lp->ll_name, &ht); if (v == NULL && !quiet) EMSG2(_(e_undefvar), lp->ll_name); *p = cc; if (v == NULL) return NULL; /* * Loop until no more [idx] or .key is following. */ lp->ll_tv = &v->di_tv; while (*p == '[' || (*p == '.' && lp->ll_tv->v_type == VAR_DICT)) { if (!(lp->ll_tv->v_type == VAR_LIST && lp->ll_tv->vval.v_list != NULL) && !(lp->ll_tv->v_type == VAR_DICT && lp->ll_tv->vval.v_dict != NULL)) { if (!quiet) EMSG(_("E689: Can only index a List or Dictionary")); return NULL; } if (lp->ll_range) { if (!quiet) EMSG(_("E708: [:] must come last")); return NULL; } len = -1; if (*p == '.') { key = p + 1; for (len = 0; ASCII_ISALNUM(key[len]) || key[len] == '_'; ++len) ; if (len == 0) { if (!quiet) EMSG(_(e_emptykey)); return NULL; } p = key + len; } else { /* Get the index [expr] or the first index [expr: ]. */ p = skipwhite(p + 1); if (*p == ':') empty1 = TRUE; else { empty1 = FALSE; if (eval1(&p, &var1, TRUE) == FAIL) /* recursive! */ return NULL; if (get_tv_string_chk(&var1) == NULL) { /* not a number or string */ clear_tv(&var1); return NULL; } } /* Optionally get the second index [ :expr]. */ if (*p == ':') { if (lp->ll_tv->v_type == VAR_DICT) { if (!quiet) EMSG(_(e_dictrange)); if (!empty1) clear_tv(&var1); return NULL; } if (rettv != NULL && (rettv->v_type != VAR_LIST || rettv->vval.v_list == NULL)) { if (!quiet) EMSG(_("E709: [:] requires a List value")); if (!empty1) clear_tv(&var1); return NULL; } p = skipwhite(p + 1); if (*p == ']') lp->ll_empty2 = TRUE; else { lp->ll_empty2 = FALSE; if (eval1(&p, &var2, TRUE) == FAIL) /* recursive! */ { if (!empty1) clear_tv(&var1); return NULL; } if (get_tv_string_chk(&var2) == NULL) { /* not a number or string */ if (!empty1) clear_tv(&var1); clear_tv(&var2); return NULL; } } lp->ll_range = TRUE; } else lp->ll_range = FALSE; if (*p != ']') { if (!quiet) EMSG(_(e_missbrac)); if (!empty1) clear_tv(&var1); if (lp->ll_range && !lp->ll_empty2) clear_tv(&var2); return NULL; } /* Skip to past ']'. */ ++p; } if (lp->ll_tv->v_type == VAR_DICT) { if (len == -1) { /* "[key]": get key from "var1" */ key = get_tv_string(&var1); /* is number or string */ if (*key == NUL) { if (!quiet) EMSG(_(e_emptykey)); clear_tv(&var1); return NULL; } } lp->ll_list = NULL; lp->ll_dict = lp->ll_tv->vval.v_dict; lp->ll_di = dict_find(lp->ll_dict, key, len); if (lp->ll_di == NULL) { /* Key does not exist in dict: may need to add it. */ if (*p == '[' || *p == '.' || unlet) { if (!quiet) EMSG2(_(e_dictkey), key); if (len == -1) clear_tv(&var1); return NULL; } if (len == -1) lp->ll_newkey = vim_strsave(key); else lp->ll_newkey = vim_strnsave(key, len); if (len == -1) clear_tv(&var1); if (lp->ll_newkey == NULL) p = NULL; break; } if (len == -1) clear_tv(&var1); lp->ll_tv = &lp->ll_di->di_tv; } else { /* * Get the number and item for the only or first index of the List. */ if (empty1) lp->ll_n1 = 0; else { lp->ll_n1 = get_tv_number(&var1); /* is number or string */ clear_tv(&var1); } lp->ll_dict = NULL; lp->ll_list = lp->ll_tv->vval.v_list; lp->ll_li = list_find(lp->ll_list, lp->ll_n1); if (lp->ll_li == NULL) { if (lp->ll_n1 < 0) { lp->ll_n1 = 0; lp->ll_li = list_find(lp->ll_list, lp->ll_n1); } } if (lp->ll_li == NULL) { if (lp->ll_range && !lp->ll_empty2) clear_tv(&var2); return NULL; } /* * May need to find the item or absolute index for the second * index of a range. * When no index given: "lp->ll_empty2" is TRUE. * Otherwise "lp->ll_n2" is set to the second index. */ if (lp->ll_range && !lp->ll_empty2) { lp->ll_n2 = get_tv_number(&var2); /* is number or string */ clear_tv(&var2); if (lp->ll_n2 < 0) { ni = list_find(lp->ll_list, lp->ll_n2); if (ni == NULL) return NULL; lp->ll_n2 = list_idx_of_item(lp->ll_list, ni); } /* Check that lp->ll_n2 isn't before lp->ll_n1. */ if (lp->ll_n1 < 0) lp->ll_n1 = list_idx_of_item(lp->ll_list, lp->ll_li); if (lp->ll_n2 < lp->ll_n1) return NULL; } lp->ll_tv = &lp->ll_li->li_tv; } } return p; } /* * Clear lval "lp" that was filled by get_lval(). */ static void clear_lval(lp) lval_T *lp; { vim_free(lp->ll_exp_name); vim_free(lp->ll_newkey); } /* * Set a variable that was parsed by get_lval() to "rettv". * "endp" points to just after the parsed name. * "op" is NULL, "+" for "+=", "-" for "-=", "." for ".=" or "=" for "=". */ static void set_var_lval(lp, endp, rettv, copy, op) lval_T *lp; char_u *endp; typval_T *rettv; int copy; char_u *op; { int cc; listitem_T *ri; dictitem_T *di; if (lp->ll_tv == NULL) { if (!check_changedtick(lp->ll_name)) { cc = *endp; *endp = NUL; if (op != NULL && *op != '=') { typval_T tv; /* handle +=, -= and .= */ if (get_var_tv(lp->ll_name, (int)STRLEN(lp->ll_name), &tv, TRUE) == OK) { if (tv_op(&tv, rettv, op) == OK) set_var(lp->ll_name, &tv, FALSE); clear_tv(&tv); } } else set_var(lp->ll_name, rettv, copy); *endp = cc; } } else if (tv_check_lock(lp->ll_newkey == NULL ? lp->ll_tv->v_lock : lp->ll_tv->vval.v_dict->dv_lock, lp->ll_name)) ; else if (lp->ll_range) { /* * Assign the List values to the list items. */ for (ri = rettv->vval.v_list->lv_first; ri != NULL; ) { if (op != NULL && *op != '=') tv_op(&lp->ll_li->li_tv, &ri->li_tv, op); else { clear_tv(&lp->ll_li->li_tv); copy_tv(&ri->li_tv, &lp->ll_li->li_tv); } ri = ri->li_next; if (ri == NULL || (!lp->ll_empty2 && lp->ll_n2 == lp->ll_n1)) break; if (lp->ll_li->li_next == NULL) { /* Need to add an empty item. */ if (list_append_number(lp->ll_list, 0) == FAIL) { ri = NULL; break; } } lp->ll_li = lp->ll_li->li_next; ++lp->ll_n1; } if (ri != NULL) EMSG(_("E710: List value has more items than target")); else if (lp->ll_empty2 ? (lp->ll_li != NULL && lp->ll_li->li_next != NULL) : lp->ll_n1 != lp->ll_n2) EMSG(_("E711: List value has not enough items")); } else { /* * Assign to a List or Dictionary item. */ if (lp->ll_newkey != NULL) { if (op != NULL && *op != '=') { EMSG2(_(e_letwrong), op); return; } /* Need to add an item to the Dictionary. */ di = dictitem_alloc(lp->ll_newkey); if (di == NULL) return; if (dict_add(lp->ll_tv->vval.v_dict, di) == FAIL) { vim_free(di); return; } lp->ll_tv = &di->di_tv; } else if (op != NULL && *op != '=') { tv_op(lp->ll_tv, rettv, op); return; } else clear_tv(lp->ll_tv); /* * Assign the value to the variable or list item. */ if (copy) copy_tv(rettv, lp->ll_tv); else { *lp->ll_tv = *rettv; lp->ll_tv->v_lock = 0; init_tv(rettv); } } } /* * Handle "tv1 += tv2", "tv1 -= tv2" and "tv1 .= tv2" * Returns OK or FAIL. */ static int tv_op(tv1, tv2, op) typval_T *tv1; typval_T *tv2; char_u *op; { long n; char_u numbuf[NUMBUFLEN]; char_u *s; /* Can't do anything with a Funcref or a Dict on the right. */ if (tv2->v_type != VAR_FUNC && tv2->v_type != VAR_DICT) { switch (tv1->v_type) { case VAR_DICT: case VAR_FUNC: break; case VAR_LIST: if (*op != '+' || tv2->v_type != VAR_LIST) break; /* List += List */ if (tv1->vval.v_list != NULL && tv2->vval.v_list != NULL) list_extend(tv1->vval.v_list, tv2->vval.v_list, NULL); return OK; case VAR_NUMBER: case VAR_STRING: if (tv2->v_type == VAR_LIST) break; if (*op == '+' || *op == '-') { /* nr += nr or nr -= nr*/ n = get_tv_number(tv1); if (*op == '+') n += get_tv_number(tv2); else n -= get_tv_number(tv2); clear_tv(tv1); tv1->v_type = VAR_NUMBER; tv1->vval.v_number = n; } else { /* str .= str */ s = get_tv_string(tv1); s = concat_str(s, get_tv_string_buf(tv2, numbuf)); clear_tv(tv1); tv1->v_type = VAR_STRING; tv1->vval.v_string = s; } return OK; } } EMSG2(_(e_letwrong), op); return FAIL; } /* * Add a watcher to a list. */ static void list_add_watch(l, lw) list_T *l; listwatch_T *lw; { lw->lw_next = l->lv_watch; l->lv_watch = lw; } /* * Remove a watcher from a list. * No warning when it isn't found... */ static void list_rem_watch(l, lwrem) list_T *l; listwatch_T *lwrem; { listwatch_T *lw, **lwp; lwp = &l->lv_watch; for (lw = l->lv_watch; lw != NULL; lw = lw->lw_next) { if (lw == lwrem) { *lwp = lw->lw_next; break; } lwp = &lw->lw_next; } } /* * Just before removing an item from a list: advance watchers to the next * item. */ static void list_fix_watch(l, item) list_T *l; listitem_T *item; { listwatch_T *lw; for (lw = l->lv_watch; lw != NULL; lw = lw->lw_next) if (lw->lw_item == item) lw->lw_item = item->li_next; } /* * Evaluate the expression used in a ":for var in expr" command. * "arg" points to "var". * Set "*errp" to TRUE for an error, FALSE otherwise; * Return a pointer that holds the info. Null when there is an error. */ void * eval_for_line(arg, errp, nextcmdp, skip) char_u *arg; int *errp; char_u **nextcmdp; int skip; { forinfo_T *fi; char_u *expr; typval_T tv; list_T *l; *errp = TRUE; /* default: there is an error */ fi = (forinfo_T *)alloc_clear(sizeof(forinfo_T)); if (fi == NULL) return NULL; expr = skip_var_list(arg, &fi->fi_varcount, &fi->fi_semicolon); if (expr == NULL) return fi; expr = skipwhite(expr); if (expr[0] != 'i' || expr[1] != 'n' || !vim_iswhite(expr[2])) { EMSG(_("E690: Missing \"in\" after :for")); return fi; } if (skip) ++emsg_skip; if (eval0(skipwhite(expr + 2), &tv, nextcmdp, !skip) == OK) { *errp = FALSE; if (!skip) { l = tv.vval.v_list; if (tv.v_type != VAR_LIST || l == NULL) { EMSG(_(e_listreq)); clear_tv(&tv); } else { /* No need to increment the refcount, it's already set for the * list being used in "tv". */ fi->fi_list = l; list_add_watch(l, &fi->fi_lw); fi->fi_lw.lw_item = l->lv_first; } } } if (skip) --emsg_skip; return fi; } /* * Use the first item in a ":for" list. Advance to the next. * Assign the values to the variable (list). "arg" points to the first one. * Return TRUE when a valid item was found, FALSE when at end of list or * something wrong. */ int next_for_item(fi_void, arg) void *fi_void; char_u *arg; { forinfo_T *fi = (forinfo_T *)fi_void; int result; listitem_T *item; item = fi->fi_lw.lw_item; if (item == NULL) result = FALSE; else { fi->fi_lw.lw_item = item->li_next; result = (ex_let_vars(arg, &item->li_tv, TRUE, fi->fi_semicolon, fi->fi_varcount, NULL) == OK); } return result; } /* * Free the structure used to store info used by ":for". */ void free_for_info(fi_void) void *fi_void; { forinfo_T *fi = (forinfo_T *)fi_void; if (fi != NULL && fi->fi_list != NULL) { list_rem_watch(fi->fi_list, &fi->fi_lw); list_unref(fi->fi_list); } vim_free(fi); } #if defined(FEAT_CMDL_COMPL) || defined(PROTO) void set_context_for_expression(xp, arg, cmdidx) expand_T *xp; char_u *arg; cmdidx_T cmdidx; { int got_eq = FALSE; int c; char_u *p; if (cmdidx == CMD_let) { xp->xp_context = EXPAND_USER_VARS; if (vim_strpbrk(arg, (char_u *)"\"'+-*/%.=!?~|&$([<>,#") == NULL) { /* ":let var1 var2 ...": find last space. */ for (p = arg + STRLEN(arg); p >= arg; ) { xp->xp_pattern = p; mb_ptr_back(arg, p); if (vim_iswhite(*p)) break; } return; } } else xp->xp_context = cmdidx == CMD_call ? EXPAND_FUNCTIONS : EXPAND_EXPRESSION; while ((xp->xp_pattern = vim_strpbrk(arg, (char_u *)"\"'+-*/%.=!?~|&$([<>,#")) != NULL) { c = *xp->xp_pattern; if (c == '&') { c = xp->xp_pattern[1]; if (c == '&') { ++xp->xp_pattern; xp->xp_context = cmdidx != CMD_let || got_eq ? EXPAND_EXPRESSION : EXPAND_NOTHING; } else if (c != ' ') { xp->xp_context = EXPAND_SETTINGS; if ((c == 'l' || c == 'g') && xp->xp_pattern[2] == ':') xp->xp_pattern += 2; } } else if (c == '$') { /* environment variable */ xp->xp_context = EXPAND_ENV_VARS; } else if (c == '=') { got_eq = TRUE; xp->xp_context = EXPAND_EXPRESSION; } else if (c == '<' && xp->xp_context == EXPAND_FUNCTIONS && vim_strchr(xp->xp_pattern, '(') == NULL) { /* Function name can start with "<SNR>" */ break; } else if (cmdidx != CMD_let || got_eq) { if (c == '"') /* string */ { while ((c = *++xp->xp_pattern) != NUL && c != '"') if (c == '\\' && xp->xp_pattern[1] != NUL) ++xp->xp_pattern; xp->xp_context = EXPAND_NOTHING; } else if (c == '\'') /* literal string */ { /* Trick: '' is like stopping and starting a literal string. */ while ((c = *++xp->xp_pattern) != NUL && c != '\'') /* skip */ ; xp->xp_context = EXPAND_NOTHING; } else if (c == '|') { if (xp->xp_pattern[1] == '|') { ++xp->xp_pattern; xp->xp_context = EXPAND_EXPRESSION; } else xp->xp_context = EXPAND_COMMANDS; } else xp->xp_context = EXPAND_EXPRESSION; } else /* Doesn't look like something valid, expand as an expression * anyway. */ xp->xp_context = EXPAND_EXPRESSION; arg = xp->xp_pattern; if (*arg != NUL) while ((c = *++arg) != NUL && (c == ' ' || c == '\t')) /* skip */ ; } xp->xp_pattern = arg; } #endif /* FEAT_CMDL_COMPL */ /* * ":1,25call func(arg1, arg2)" function call. */ void ex_call(eap) exarg_T *eap; { char_u *arg = eap->arg; char_u *startarg; char_u *name; char_u *tofree; int len; typval_T rettv; linenr_T lnum; int doesrange; int failed = FALSE; funcdict_T fudi; tofree = trans_function_name(&arg, eap->skip, TFN_INT, &fudi); if (fudi.fd_newkey != NULL) { /* Still need to give an error message for missing key. */ EMSG2(_(e_dictkey), fudi.fd_newkey); vim_free(fudi.fd_newkey); } if (tofree == NULL) return; /* Increase refcount on dictionary, it could get deleted when evaluating * the arguments. */ if (fudi.fd_dict != NULL) ++fudi.fd_dict->dv_refcount; /* If it is the name of a variable of type VAR_FUNC use its contents. */ len = (int)STRLEN(tofree); name = deref_func_name(tofree, &len); /* Skip white space to allow ":call func ()". Not good, but required for * backward compatibility. */ startarg = skipwhite(arg); rettv.v_type = VAR_UNKNOWN; /* clear_tv() uses this */ if (*startarg != '(') { EMSG2(_("E107: Missing braces: %s"), eap->arg); goto end; } /* * When skipping, evaluate the function once, to find the end of the * arguments. * When the function takes a range, this is discovered after the first * call, and the loop is broken. */ if (eap->skip) { ++emsg_skip; lnum = eap->line2; /* do it once, also with an invalid range */ } else lnum = eap->line1; for ( ; lnum <= eap->line2; ++lnum) { if (!eap->skip && eap->addr_count > 0) { curwin->w_cursor.lnum = lnum; curwin->w_cursor.col = 0; } arg = startarg; if (get_func_tv(name, (int)STRLEN(name), &rettv, &arg, eap->line1, eap->line2, &doesrange, !eap->skip, fudi.fd_dict) == FAIL) { failed = TRUE; break; } /* Handle a function returning a Funcref, Dictionary or List. */ if (handle_subscript(&arg, &rettv, !eap->skip, TRUE) == FAIL) { failed = TRUE; break; } clear_tv(&rettv); if (doesrange || eap->skip) break; /* Stop when immediately aborting on error, or when an interrupt * occurred or an exception was thrown but not caught. * get_func_tv() returned OK, so that the check for trailing * characters below is executed. */ if (aborting()) break; } if (eap->skip) --emsg_skip; if (!failed) { /* Check for trailing illegal characters and a following command. */ if (!ends_excmd(*arg)) { emsg_severe = TRUE; EMSG(_(e_trailing)); } else eap->nextcmd = check_nextcmd(arg); } end: dict_unref(fudi.fd_dict); vim_free(tofree); } /* * ":unlet[!] var1 ... " command. */ void ex_unlet(eap) exarg_T *eap; { ex_unletlock(eap, eap->arg, 0); } /* * ":lockvar" and ":unlockvar" commands */ void ex_lockvar(eap) exarg_T *eap; { char_u *arg = eap->arg; int deep = 2; if (eap->forceit) deep = -1; else if (vim_isdigit(*arg)) { deep = getdigits(&arg); arg = skipwhite(arg); } ex_unletlock(eap, arg, deep); } /* * ":unlet", ":lockvar" and ":unlockvar" are quite similar. */ static void ex_unletlock(eap, argstart, deep) exarg_T *eap; char_u *argstart; int deep; { char_u *arg = argstart; char_u *name_end; int error = FALSE; lval_T lv; do { /* Parse the name and find the end. */ name_end = get_lval(arg, NULL, &lv, TRUE, eap->skip || error, FALSE, FNE_CHECK_START); if (lv.ll_name == NULL) error = TRUE; /* error but continue parsing */ if (name_end == NULL || (!vim_iswhite(*name_end) && !ends_excmd(*name_end))) { if (name_end != NULL) { emsg_severe = TRUE; EMSG(_(e_trailing)); } if (!(eap->skip || error)) clear_lval(&lv); break; } if (!error && !eap->skip) { if (eap->cmdidx == CMD_unlet) { if (do_unlet_var(&lv, name_end, eap->forceit) == FAIL) error = TRUE; } else { if (do_lock_var(&lv, name_end, deep, eap->cmdidx == CMD_lockvar) == FAIL) error = TRUE; } } if (!eap->skip) clear_lval(&lv); arg = skipwhite(name_end); } while (!ends_excmd(*arg)); eap->nextcmd = check_nextcmd(arg); } static int do_unlet_var(lp, name_end, forceit) lval_T *lp; char_u *name_end; int forceit; { int ret = OK; int cc; if (lp->ll_tv == NULL) { cc = *name_end; *name_end = NUL; /* Normal name or expanded name. */ if (check_changedtick(lp->ll_name)) ret = FAIL; else if (do_unlet(lp->ll_name, forceit) == FAIL) ret = FAIL; *name_end = cc; } else if (tv_check_lock(lp->ll_tv->v_lock, lp->ll_name)) return FAIL; else if (lp->ll_range) { listitem_T *li; /* Delete a range of List items. */ while (lp->ll_li != NULL && (lp->ll_empty2 || lp->ll_n2 >= lp->ll_n1)) { li = lp->ll_li->li_next; listitem_remove(lp->ll_list, lp->ll_li); lp->ll_li = li; ++lp->ll_n1; } } else { if (lp->ll_list != NULL) /* unlet a List item. */ listitem_remove(lp->ll_list, lp->ll_li); else /* unlet a Dictionary item. */ dictitem_remove(lp->ll_dict, lp->ll_di); } return ret; } /* * "unlet" a variable. Return OK if it existed, FAIL if not. * When "forceit" is TRUE don't complain if the variable doesn't exist. */ int do_unlet(name, forceit) char_u *name; int forceit; { hashtab_T *ht; hashitem_T *hi; char_u *varname; ht = find_var_ht(name, &varname); if (ht != NULL && *varname != NUL) { hi = hash_find(ht, varname); if (!HASHITEM_EMPTY(hi)) { if (var_check_fixed(HI2DI(hi)->di_flags, name)) return FAIL; if (var_check_ro(HI2DI(hi)->di_flags, name)) return FAIL; delete_var(ht, hi); return OK; } } if (forceit) return OK; EMSG2(_("E108: No such variable: \"%s\""), name); return FAIL; } /* * Lock or unlock variable indicated by "lp". * "deep" is the levels to go (-1 for unlimited); * "lock" is TRUE for ":lockvar", FALSE for ":unlockvar". */ static int do_lock_var(lp, name_end, deep, lock) lval_T *lp; char_u *name_end; int deep; int lock; { int ret = OK; int cc; dictitem_T *di; if (deep == 0) /* nothing to do */ return OK; if (lp->ll_tv == NULL) { cc = *name_end; *name_end = NUL; /* Normal name or expanded name. */ if (check_changedtick(lp->ll_name)) ret = FAIL; else { di = find_var(lp->ll_name, NULL); if (di == NULL) ret = FAIL; else { if (lock) di->di_flags |= DI_FLAGS_LOCK; else di->di_flags &= ~DI_FLAGS_LOCK; item_lock(&di->di_tv, deep, lock); } } *name_end = cc; } else if (lp->ll_range) { listitem_T *li = lp->ll_li; /* (un)lock a range of List items. */ while (li != NULL && (lp->ll_empty2 || lp->ll_n2 >= lp->ll_n1)) { item_lock(&li->li_tv, deep, lock); li = li->li_next; ++lp->ll_n1; } } else if (lp->ll_list != NULL) /* (un)lock a List item. */ item_lock(&lp->ll_li->li_tv, deep, lock); else /* un(lock) a Dictionary item. */ item_lock(&lp->ll_di->di_tv, deep, lock); return ret; } /* * Lock or unlock an item. "deep" is nr of levels to go. */ static void item_lock(tv, deep, lock) typval_T *tv; int deep; int lock; { static int recurse = 0; list_T *l; listitem_T *li; dict_T *d; hashitem_T *hi; int todo; if (recurse >= DICT_MAXNEST) { EMSG(_("E743: variable nested too deep for (un)lock")); return; } if (deep == 0) return; ++recurse; /* lock/unlock the item itself */ if (lock) tv->v_lock |= VAR_LOCKED; else tv->v_lock &= ~VAR_LOCKED; switch (tv->v_type) { case VAR_LIST: if ((l = tv->vval.v_list) != NULL) { if (lock) l->lv_lock |= VAR_LOCKED; else l->lv_lock &= ~VAR_LOCKED; if (deep < 0 || deep > 1) /* recursive: lock/unlock the items the List contains */ for (li = l->lv_first; li != NULL; li = li->li_next) item_lock(&li->li_tv, deep - 1, lock); } break; case VAR_DICT: if ((d = tv->vval.v_dict) != NULL) { if (lock) d->dv_lock |= VAR_LOCKED; else d->dv_lock &= ~VAR_LOCKED; if (deep < 0 || deep > 1) { /* recursive: lock/unlock the items the List contains */ todo = (int)d->dv_hashtab.ht_used; for (hi = d->dv_hashtab.ht_array; todo > 0; ++hi) { if (!HASHITEM_EMPTY(hi)) { --todo; item_lock(&HI2DI(hi)->di_tv, deep - 1, lock); } } } } } --recurse; } /* * Return TRUE if typeval "tv" is locked: Either tha value is locked itself or * it refers to a List or Dictionary that is locked. */ static int tv_islocked(tv) typval_T *tv; { return (tv->v_lock & VAR_LOCKED) || (tv->v_type == VAR_LIST && tv->vval.v_list != NULL && (tv->vval.v_list->lv_lock & VAR_LOCKED)) || (tv->v_type == VAR_DICT && tv->vval.v_dict != NULL && (tv->vval.v_dict->dv_lock & VAR_LOCKED)); } #if (defined(FEAT_MENU) && defined(FEAT_MULTI_LANG)) || defined(PROTO) /* * Delete all "menutrans_" variables. */ void del_menutrans_vars() { hashitem_T *hi; int todo; hash_lock(&globvarht); todo = (int)globvarht.ht_used; for (hi = globvarht.ht_array; todo > 0 && !got_int; ++hi) { if (!HASHITEM_EMPTY(hi)) { --todo; if (STRNCMP(HI2DI(hi)->di_key, "menutrans_", 10) == 0) delete_var(&globvarht, hi); } } hash_unlock(&globvarht); } #endif #if defined(FEAT_CMDL_COMPL) || defined(PROTO) /* * Local string buffer for the next two functions to store a variable name * with its prefix. Allocated in cat_prefix_varname(), freed later in * get_user_var_name(). */ static char_u *cat_prefix_varname __ARGS((int prefix, char_u *name)); static char_u *varnamebuf = NULL; static int varnamebuflen = 0; /* * Function to concatenate a prefix and a variable name. */ static char_u * cat_prefix_varname(prefix, name) int prefix; char_u *name; { int len; len = (int)STRLEN(name) + 3; if (len > varnamebuflen) { vim_free(varnamebuf); len += 10; /* some additional space */ varnamebuf = alloc(len); if (varnamebuf == NULL) { varnamebuflen = 0; return NULL; } varnamebuflen = len; } *varnamebuf = prefix; varnamebuf[1] = ':'; STRCPY(varnamebuf + 2, name); return varnamebuf; } /* * Function given to ExpandGeneric() to obtain the list of user defined * (global/buffer/window/built-in) variable names. */ /*ARGSUSED*/ char_u * get_user_var_name(xp, idx) expand_T *xp; int idx; { static long_u gdone; static long_u bdone; static long_u wdone; #ifdef FEAT_WINDOWS static long_u tdone; #endif static int vidx; static hashitem_T *hi; hashtab_T *ht; if (idx == 0) { gdone = bdone = wdone = vidx = 0; #ifdef FEAT_WINDOWS tdone = 0; #endif } /* Global variables */ if (gdone < globvarht.ht_used) { if (gdone++ == 0) hi = globvarht.ht_array; else ++hi; while (HASHITEM_EMPTY(hi)) ++hi; if (STRNCMP("g:", xp->xp_pattern, 2) == 0) return cat_prefix_varname('g', hi->hi_key); return hi->hi_key; } /* b: variables */ ht = &curbuf->b_vars.dv_hashtab; if (bdone < ht->ht_used) { if (bdone++ == 0) hi = ht->ht_array; else ++hi; while (HASHITEM_EMPTY(hi)) ++hi; return cat_prefix_varname('b', hi->hi_key); } if (bdone == ht->ht_used) { ++bdone; return (char_u *)"b:changedtick"; } /* w: variables */ ht = &curwin->w_vars.dv_hashtab; if (wdone < ht->ht_used) { if (wdone++ == 0) hi = ht->ht_array; else ++hi; while (HASHITEM_EMPTY(hi)) ++hi; return cat_prefix_varname('w', hi->hi_key); } #ifdef FEAT_WINDOWS /* t: variables */ ht = &curtab->tp_vars.dv_hashtab; if (tdone < ht->ht_used) { if (tdone++ == 0) hi = ht->ht_array; else ++hi; while (HASHITEM_EMPTY(hi)) ++hi; return cat_prefix_varname('t', hi->hi_key); } #endif /* v: variables */ if (vidx < VV_LEN) return cat_prefix_varname('v', (char_u *)vimvars[vidx++].vv_name); vim_free(varnamebuf); varnamebuf = NULL; varnamebuflen = 0; return NULL; } #endif /* FEAT_CMDL_COMPL */ /* * types for expressions. */ typedef enum { TYPE_UNKNOWN = 0 , TYPE_EQUAL /* == */ , TYPE_NEQUAL /* != */ , TYPE_GREATER /* > */ , TYPE_GEQUAL /* >= */ , TYPE_SMALLER /* < */ , TYPE_SEQUAL /* <= */ , TYPE_MATCH /* =~ */ , TYPE_NOMATCH /* !~ */ } exptype_T; /* * The "evaluate" argument: When FALSE, the argument is only parsed but not * executed. The function may return OK, but the rettv will be of type * VAR_UNKNOWN. The function still returns FAIL for a syntax error. */ /* * Handle zero level expression. * This calls eval1() and handles error message and nextcmd. * Put the result in "rettv" when returning OK and "evaluate" is TRUE. * Note: "rettv.v_lock" is not set. * Return OK or FAIL. */ static int eval0(arg, rettv, nextcmd, evaluate) char_u *arg; typval_T *rettv; char_u **nextcmd; int evaluate; { int ret; char_u *p; p = skipwhite(arg); ret = eval1(&p, rettv, evaluate); if (ret == FAIL || !ends_excmd(*p)) { if (ret != FAIL) clear_tv(rettv); /* * Report the invalid expression unless the expression evaluation has * been cancelled due to an aborting error, an interrupt, or an * exception. */ if (!aborting()) EMSG2(_(e_invexpr2), arg); ret = FAIL; } if (nextcmd != NULL) *nextcmd = check_nextcmd(p); return ret; } /* * Handle top level expression: * expr1 ? expr0 : expr0 * * "arg" must point to the first non-white of the expression. * "arg" is advanced to the next non-white after the recognized expression. * * Note: "rettv.v_lock" is not set. * * Return OK or FAIL. */ static int eval1(arg, rettv, evaluate) char_u **arg; typval_T *rettv; int evaluate; { int result; typval_T var2; /* * Get the first variable. */ if (eval2(arg, rettv, evaluate) == FAIL) return FAIL; if ((*arg)[0] == '?') { result = FALSE; if (evaluate) { int error = FALSE; if (get_tv_number_chk(rettv, &error) != 0) result = TRUE; clear_tv(rettv); if (error) return FAIL; } /* * Get the second variable. */ *arg = skipwhite(*arg + 1); if (eval1(arg, rettv, evaluate && result) == FAIL) /* recursive! */ return FAIL; /* * Check for the ":". */ if ((*arg)[0] != ':') { EMSG(_("E109: Missing ':' after '?'")); if (evaluate && result) clear_tv(rettv); return FAIL; } /* * Get the third variable. */ *arg = skipwhite(*arg + 1); if (eval1(arg, &var2, evaluate && !result) == FAIL) /* recursive! */ { if (evaluate && result) clear_tv(rettv); return FAIL; } if (evaluate && !result) *rettv = var2; } return OK; } /* * Handle first level expression: * expr2 || expr2 || expr2 logical OR * * "arg" must point to the first non-white of the expression. * "arg" is advanced to the next non-white after the recognized expression. * * Return OK or FAIL. */ static int eval2(arg, rettv, evaluate) char_u **arg; typval_T *rettv; int evaluate; { typval_T var2; long result; int first; int error = FALSE; /* * Get the first variable. */ if (eval3(arg, rettv, evaluate) == FAIL) return FAIL; /* * Repeat until there is no following "||". */ first = TRUE; result = FALSE; while ((*arg)[0] == '|' && (*arg)[1] == '|') { if (evaluate && first) { if (get_tv_number_chk(rettv, &error) != 0) result = TRUE; clear_tv(rettv); if (error) return FAIL; first = FALSE; } /* * Get the second variable. */ *arg = skipwhite(*arg + 2); if (eval3(arg, &var2, evaluate && !result) == FAIL) return FAIL; /* * Compute the result. */ if (evaluate && !result) { if (get_tv_number_chk(&var2, &error) != 0) result = TRUE; clear_tv(&var2); if (error) return FAIL; } if (evaluate) { rettv->v_type = VAR_NUMBER; rettv->vval.v_number = result; } } return OK; } /* * Handle second level expression: * expr3 && expr3 && expr3 logical AND * * "arg" must point to the first non-white of the expression. * "arg" is advanced to the next non-white after the recognized expression. * * Return OK or FAIL. */ static int eval3(arg, rettv, evaluate) char_u **arg; typval_T *rettv; int evaluate; { typval_T var2; long result; int first; int error = FALSE; /* * Get the first variable. */ if (eval4(arg, rettv, evaluate) == FAIL) return FAIL; /* * Repeat until there is no following "&&". */ first = TRUE; result = TRUE; while ((*arg)[0] == '&' && (*arg)[1] == '&') { if (evaluate && first) { if (get_tv_number_chk(rettv, &error) == 0) result = FALSE; clear_tv(rettv); if (error) return FAIL; first = FALSE; } /* * Get the second variable. */ *arg = skipwhite(*arg + 2); if (eval4(arg, &var2, evaluate && result) == FAIL) return FAIL; /* * Compute the result. */ if (evaluate && result) { if (get_tv_number_chk(&var2, &error) == 0) result = FALSE; clear_tv(&var2); if (error) return FAIL; } if (evaluate) { rettv->v_type = VAR_NUMBER; rettv->vval.v_number = result; } } return OK; } /* * Handle third level expression: * var1 == var2 * var1 =~ var2 * var1 != var2 * var1 !~ var2 * var1 > var2 * var1 >= var2 * var1 < var2 * var1 <= var2 * var1 is var2 * var1 isnot var2 * * "arg" must point to the first non-white of the expression. * "arg" is advanced to the next non-white after the recognized expression. * * Return OK or FAIL. */ static int eval4(arg, rettv, evaluate) char_u **arg; typval_T *rettv; int evaluate; { typval_T var2; char_u *p; int i; exptype_T type = TYPE_UNKNOWN; int type_is = FALSE; /* TRUE for "is" and "isnot" */ int len = 2; long n1, n2; char_u *s1, *s2; char_u buf1[NUMBUFLEN], buf2[NUMBUFLEN]; regmatch_T regmatch; int ic; char_u *save_cpo; /* * Get the first variable. */ if (eval5(arg, rettv, evaluate) == FAIL) return FAIL; p = *arg; switch (p[0]) { case '=': if (p[1] == '=') type = TYPE_EQUAL; else if (p[1] == '~') type = TYPE_MATCH; break; case '!': if (p[1] == '=') type = TYPE_NEQUAL; else if (p[1] == '~') type = TYPE_NOMATCH; break; case '>': if (p[1] != '=') { type = TYPE_GREATER; len = 1; } else type = TYPE_GEQUAL; break; case '<': if (p[1] != '=') { type = TYPE_SMALLER; len = 1; } else type = TYPE_SEQUAL; break; case 'i': if (p[1] == 's') { if (p[2] == 'n' && p[3] == 'o' && p[4] == 't') len = 5; if (!vim_isIDc(p[len])) { type = len == 2 ? TYPE_EQUAL : TYPE_NEQUAL; type_is = TRUE; } } break; } /* * If there is a comparitive operator, use it. */ if (type != TYPE_UNKNOWN) { /* extra question mark appended: ignore case */ if (p[len] == '?') { ic = TRUE; ++len; } /* extra '#' appended: match case */ else if (p[len] == '#') { ic = FALSE; ++len; } /* nothing appened: use 'ignorecase' */ else ic = p_ic; /* * Get the second variable. */ *arg = skipwhite(p + len); if (eval5(arg, &var2, evaluate) == FAIL) { clear_tv(rettv); return FAIL; } if (evaluate) { if (type_is && rettv->v_type != var2.v_type) { /* For "is" a different type always means FALSE, for "notis" * it means TRUE. */ n1 = (type == TYPE_NEQUAL); } else if (rettv->v_type == VAR_LIST || var2.v_type == VAR_LIST) { if (type_is) { n1 = (rettv->v_type == var2.v_type && rettv->vval.v_list == var2.vval.v_list); if (type == TYPE_NEQUAL) n1 = !n1; } else if (rettv->v_type != var2.v_type || (type != TYPE_EQUAL && type != TYPE_NEQUAL)) { if (rettv->v_type != var2.v_type) EMSG(_("E691: Can only compare List with List")); else EMSG(_("E692: Invalid operation for Lists")); clear_tv(rettv); clear_tv(&var2); return FAIL; } else { /* Compare two Lists for being equal or unequal. */ n1 = list_equal(rettv->vval.v_list, var2.vval.v_list, ic); if (type == TYPE_NEQUAL) n1 = !n1; } } else if (rettv->v_type == VAR_DICT || var2.v_type == VAR_DICT) { if (type_is) { n1 = (rettv->v_type == var2.v_type && rettv->vval.v_dict == var2.vval.v_dict); if (type == TYPE_NEQUAL) n1 = !n1; } else if (rettv->v_type != var2.v_type || (type != TYPE_EQUAL && type != TYPE_NEQUAL)) { if (rettv->v_type != var2.v_type) EMSG(_("E735: Can only compare Dictionary with Dictionary")); else EMSG(_("E736: Invalid operation for Dictionary")); clear_tv(rettv); clear_tv(&var2); return FAIL; } else { /* Compare two Dictionaries for being equal or unequal. */ n1 = dict_equal(rettv->vval.v_dict, var2.vval.v_dict, ic); if (type == TYPE_NEQUAL) n1 = !n1; } } else if (rettv->v_type == VAR_FUNC || var2.v_type == VAR_FUNC) { if (rettv->v_type != var2.v_type || (type != TYPE_EQUAL && type != TYPE_NEQUAL)) { if (rettv->v_type != var2.v_type) EMSG(_("E693: Can only compare Funcref with Funcref")); else EMSG(_("E694: Invalid operation for Funcrefs")); clear_tv(rettv); clear_tv(&var2); return FAIL; } else { /* Compare two Funcrefs for being equal or unequal. */ if (rettv->vval.v_string == NULL || var2.vval.v_string == NULL) n1 = FALSE; else n1 = STRCMP(rettv->vval.v_string, var2.vval.v_string) == 0; if (type == TYPE_NEQUAL) n1 = !n1; } } /* * If one of the two variables is a number, compare as a number. * When using "=~" or "!~", always compare as string. */ else if ((rettv->v_type == VAR_NUMBER || var2.v_type == VAR_NUMBER) && type != TYPE_MATCH && type != TYPE_NOMATCH) { n1 = get_tv_number(rettv); n2 = get_tv_number(&var2); switch (type) { case TYPE_EQUAL: n1 = (n1 == n2); break; case TYPE_NEQUAL: n1 = (n1 != n2); break; case TYPE_GREATER: n1 = (n1 > n2); break; case TYPE_GEQUAL: n1 = (n1 >= n2); break; case TYPE_SMALLER: n1 = (n1 < n2); break; case TYPE_SEQUAL: n1 = (n1 <= n2); break; case TYPE_UNKNOWN: case TYPE_MATCH: case TYPE_NOMATCH: break; /* avoid gcc warning */ } } else { s1 = get_tv_string_buf(rettv, buf1); s2 = get_tv_string_buf(&var2, buf2); if (type != TYPE_MATCH && type != TYPE_NOMATCH) i = ic ? MB_STRICMP(s1, s2) : STRCMP(s1, s2); else i = 0; n1 = FALSE; switch (type) { case TYPE_EQUAL: n1 = (i == 0); break; case TYPE_NEQUAL: n1 = (i != 0); break; case TYPE_GREATER: n1 = (i > 0); break; case TYPE_GEQUAL: n1 = (i >= 0); break; case TYPE_SMALLER: n1 = (i < 0); break; case TYPE_SEQUAL: n1 = (i <= 0); break; case TYPE_MATCH: case TYPE_NOMATCH: /* avoid 'l' flag in 'cpoptions' */ save_cpo = p_cpo; p_cpo = (char_u *)""; regmatch.regprog = vim_regcomp(s2, RE_MAGIC + RE_STRING); regmatch.rm_ic = ic; if (regmatch.regprog != NULL) { n1 = vim_regexec_nl(®match, s1, (colnr_T)0); vim_free(regmatch.regprog); if (type == TYPE_NOMATCH) n1 = !n1; } p_cpo = save_cpo; break; case TYPE_UNKNOWN: break; /* avoid gcc warning */ } } clear_tv(rettv); clear_tv(&var2); rettv->v_type = VAR_NUMBER; rettv->vval.v_number = n1; } } return OK; } /* * Handle fourth level expression: * + number addition * - number subtraction * . string concatenation * * "arg" must point to the first non-white of the expression. * "arg" is advanced to the next non-white after the recognized expression. * * Return OK or FAIL. */ static int eval5(arg, rettv, evaluate) char_u **arg; typval_T *rettv; int evaluate; { typval_T var2; typval_T var3; int op; long n1, n2; char_u *s1, *s2; char_u buf1[NUMBUFLEN], buf2[NUMBUFLEN]; char_u *p; /* * Get the first variable. */ if (eval6(arg, rettv, evaluate) == FAIL) return FAIL; /* * Repeat computing, until no '+', '-' or '.' is following. */ for (;;) { op = **arg; if (op != '+' && op != '-' && op != '.') break; if (op != '+' || rettv->v_type != VAR_LIST) { /* For "list + ...", an illegal use of the first operand as * a number cannot be determined before evaluating the 2nd * operand: if this is also a list, all is ok. * For "something . ...", "something - ..." or "non-list + ...", * we know that the first operand needs to be a string or number * without evaluating the 2nd operand. So check before to avoid * side effects after an error. */ if (evaluate && get_tv_string_chk(rettv) == NULL) { clear_tv(rettv); return FAIL; } } /* * Get the second variable. */ *arg = skipwhite(*arg + 1); if (eval6(arg, &var2, evaluate) == FAIL) { clear_tv(rettv); return FAIL; } if (evaluate) { /* * Compute the result. */ if (op == '.') { s1 = get_tv_string_buf(rettv, buf1); /* already checked */ s2 = get_tv_string_buf_chk(&var2, buf2); if (s2 == NULL) /* type error ? */ { clear_tv(rettv); clear_tv(&var2); return FAIL; } p = concat_str(s1, s2); clear_tv(rettv); rettv->v_type = VAR_STRING; rettv->vval.v_string = p; } else if (op == '+' && rettv->v_type == VAR_LIST && var2.v_type == VAR_LIST) { /* concatenate Lists */ if (list_concat(rettv->vval.v_list, var2.vval.v_list, &var3) == FAIL) { clear_tv(rettv); clear_tv(&var2); return FAIL; } clear_tv(rettv); *rettv = var3; } else { int error = FALSE; n1 = get_tv_number_chk(rettv, &error); if (error) { /* This can only happen for "list + non-list". * For "non-list + ..." or "something - ...", we returned * before evaluating the 2nd operand. */ clear_tv(rettv); return FAIL; } n2 = get_tv_number_chk(&var2, &error); if (error) { clear_tv(rettv); clear_tv(&var2); return FAIL; } clear_tv(rettv); if (op == '+') n1 = n1 + n2; else n1 = n1 - n2; rettv->v_type = VAR_NUMBER; rettv->vval.v_number = n1; } clear_tv(&var2); } } return OK; } /* * Handle fifth level expression: * * number multiplication * / number division * % number modulo * * "arg" must point to the first non-white of the expression. * "arg" is advanced to the next non-white after the recognized expression. * * Return OK or FAIL. */ static int eval6(arg, rettv, evaluate) char_u **arg; typval_T *rettv; int evaluate; { typval_T var2; int op; long n1, n2; int error = FALSE; /* * Get the first variable. */ if (eval7(arg, rettv, evaluate) == FAIL) return FAIL; /* * Repeat computing, until no '*', '/' or '%' is following. */ for (;;) { op = **arg; if (op != '*' && op != '/' && op != '%') break; if (evaluate) { n1 = get_tv_number_chk(rettv, &error); clear_tv(rettv); if (error) return FAIL; } else n1 = 0; /* * Get the second variable. */ *arg = skipwhite(*arg + 1); if (eval7(arg, &var2, evaluate) == FAIL) return FAIL; if (evaluate) { n2 = get_tv_number_chk(&var2, &error); clear_tv(&var2); if (error) return FAIL; /* * Compute the result. */ if (op == '*') n1 = n1 * n2; else if (op == '/') { if (n2 == 0) /* give an error message? */ n1 = 0x7fffffffL; else n1 = n1 / n2; } else { if (n2 == 0) /* give an error message? */ n1 = 0; else n1 = n1 % n2; } rettv->v_type = VAR_NUMBER; rettv->vval.v_number = n1; } } return OK; } /* * Handle sixth level expression: * number number constant * "string" string constant * 'string' literal string constant * &option-name option value * @r register contents * identifier variable value * function() function call * $VAR environment variable * (expression) nested expression * [expr, expr] List * {key: val, key: val} Dictionary * * Also handle: * ! in front logical NOT * - in front unary minus * + in front unary plus (ignored) * trailing [] subscript in String or List * trailing .name entry in Dictionary * * "arg" must point to the first non-white of the expression. * "arg" is advanced to the next non-white after the recognized expression. * * Return OK or FAIL. */ static int eval7(arg, rettv, evaluate) char_u **arg; typval_T *rettv; int evaluate; { long n; int len; char_u *s; int val; char_u *start_leader, *end_leader; int ret = OK; char_u *alias; /* * Initialise variable so that clear_tv() can't mistake this for a * string and free a string that isn't there. */ rettv->v_type = VAR_UNKNOWN; /* * Skip '!' and '-' characters. They are handled later. */ start_leader = *arg; while (**arg == '!' || **arg == '-' || **arg == '+') *arg = skipwhite(*arg + 1); end_leader = *arg; switch (**arg) { /* * Number constant. */ case '0': case '1': case '2': case '3': case '4': case '5': case '6': case '7': case '8': case '9': vim_str2nr(*arg, NULL, &len, TRUE, TRUE, &n, NULL); *arg += len; if (evaluate) { rettv->v_type = VAR_NUMBER; rettv->vval.v_number = n; } break; /* * String constant: "string". */ case '"': ret = get_string_tv(arg, rettv, evaluate); break; /* * Literal string constant: 'str''ing'. */ case '\'': ret = get_lit_string_tv(arg, rettv, evaluate); break; /* * List: [expr, expr] */ case '[': ret = get_list_tv(arg, rettv, evaluate); break; /* * Dictionary: {key: val, key: val} */ case '{': ret = get_dict_tv(arg, rettv, evaluate); break; /* * Option value: &name */ case '&': ret = get_option_tv(arg, rettv, evaluate); break; /* * Environment variable: $VAR. */ case '$': ret = get_env_tv(arg, rettv, evaluate); break; /* * Register contents: @r. */ case '@': ++*arg; if (evaluate) { rettv->v_type = VAR_STRING; rettv->vval.v_string = get_reg_contents(**arg, TRUE, TRUE); } if (**arg != NUL) ++*arg; break; /* * nested expression: (expression). */ case '(': *arg = skipwhite(*arg + 1); ret = eval1(arg, rettv, evaluate); /* recursive! */ if (**arg == ')') ++*arg; else if (ret == OK) { EMSG(_("E110: Missing ')'")); clear_tv(rettv); ret = FAIL; } break; default: ret = NOTDONE; break; } if (ret == NOTDONE) { /* * Must be a variable or function name. * Can also be a curly-braces kind of name: {expr}. */ s = *arg; len = get_name_len(arg, &alias, evaluate, TRUE); if (alias != NULL) s = alias; if (len <= 0) ret = FAIL; else { if (**arg == '(') /* recursive! */ { /* If "s" is the name of a variable of type VAR_FUNC * use its contents. */ s = deref_func_name(s, &len); /* Invoke the function. */ ret = get_func_tv(s, len, rettv, arg, curwin->w_cursor.lnum, curwin->w_cursor.lnum, &len, evaluate, NULL); /* Stop the expression evaluation when immediately * aborting on error, or when an interrupt occurred or * an exception was thrown but not caught. */ if (aborting()) { if (ret == OK) clear_tv(rettv); ret = FAIL; } } else if (evaluate) ret = get_var_tv(s, len, rettv, TRUE); else ret = OK; } if (alias != NULL) vim_free(alias); } *arg = skipwhite(*arg); /* Handle following '[', '(' and '.' for expr[expr], expr.name, * expr(expr). */ if (ret == OK) ret = handle_subscript(arg, rettv, evaluate, TRUE); /* * Apply logical NOT and unary '-', from right to left, ignore '+'. */ if (ret == OK && evaluate && end_leader > start_leader) { int error = FALSE; val = get_tv_number_chk(rettv, &error); if (error) { clear_tv(rettv); ret = FAIL; } else { while (end_leader > start_leader) { --end_leader; if (*end_leader == '!') val = !val; else if (*end_leader == '-') val = -val; } clear_tv(rettv); rettv->v_type = VAR_NUMBER; rettv->vval.v_number = val; } } return ret; } /* * Evaluate an "[expr]" or "[expr:expr]" index. Also "dict.key". * "*arg" points to the '[' or '.'. * Returns FAIL or OK. "*arg" is advanced to after the ']'. */ static int eval_index(arg, rettv, evaluate, verbose) char_u **arg; typval_T *rettv; int evaluate; int verbose; /* give error messages */ { int empty1 = FALSE, empty2 = FALSE; typval_T var1, var2; long n1, n2 = 0; long len = -1; int range = FALSE; char_u *s; char_u *key = NULL; if (rettv->v_type == VAR_FUNC) { if (verbose) EMSG(_("E695: Cannot index a Funcref")); return FAIL; } if (**arg == '.') { /* * dict.name */ key = *arg + 1; for (len = 0; ASCII_ISALNUM(key[len]) || key[len] == '_'; ++len) ; if (len == 0) return FAIL; *arg = skipwhite(key + len); } else { /* * something[idx] * * Get the (first) variable from inside the []. */ *arg = skipwhite(*arg + 1); if (**arg == ':') empty1 = TRUE; else if (eval1(arg, &var1, evaluate) == FAIL) /* recursive! */ return FAIL; else if (evaluate && get_tv_string_chk(&var1) == NULL) { /* not a number or string */ clear_tv(&var1); return FAIL; } /* * Get the second variable from inside the [:]. */ if (**arg == ':') { range = TRUE; *arg = skipwhite(*arg + 1); if (**arg == ']') empty2 = TRUE; else if (eval1(arg, &var2, evaluate) == FAIL) /* recursive! */ { if (!empty1) clear_tv(&var1); return FAIL; } else if (evaluate && get_tv_string_chk(&var2) == NULL) { /* not a number or string */ if (!empty1) clear_tv(&var1); clear_tv(&var2); return FAIL; } } /* Check for the ']'. */ if (**arg != ']') { if (verbose) EMSG(_(e_missbrac)); clear_tv(&var1); if (range) clear_tv(&var2); return FAIL; } *arg = skipwhite(*arg + 1); /* skip the ']' */ } if (evaluate) { n1 = 0; if (!empty1 && rettv->v_type != VAR_DICT) { n1 = get_tv_number(&var1); clear_tv(&var1); } if (range) { if (empty2) n2 = -1; else { n2 = get_tv_number(&var2); clear_tv(&var2); } } switch (rettv->v_type) { case VAR_NUMBER: case VAR_STRING: s = get_tv_string(rettv); len = (long)STRLEN(s); if (range) { /* The resulting variable is a substring. If the indexes * are out of range the result is empty. */ if (n1 < 0) { n1 = len + n1; if (n1 < 0) n1 = 0; } if (n2 < 0) n2 = len + n2; else if (n2 >= len) n2 = len; if (n1 >= len || n2 < 0 || n1 > n2) s = NULL; else s = vim_strnsave(s + n1, (int)(n2 - n1 + 1)); } else { /* The resulting variable is a string of a single * character. If the index is too big or negative the * result is empty. */ if (n1 >= len || n1 < 0) s = NULL; else s = vim_strnsave(s + n1, 1); } clear_tv(rettv); rettv->v_type = VAR_STRING; rettv->vval.v_string = s; break; case VAR_LIST: len = list_len(rettv->vval.v_list); if (n1 < 0) n1 = len + n1; if (!empty1 && (n1 < 0 || n1 >= len)) { /* For a range we allow invalid values and return an empty * list. A list index out of range is an error. */ if (!range) { if (verbose) EMSGN(_(e_listidx), n1); return FAIL; } n1 = len; } if (range) { list_T *l; listitem_T *item; if (n2 < 0) n2 = len + n2; else if (n2 >= len) n2 = len - 1; if (!empty2 && (n2 < 0 || n2 + 1 < n1)) n2 = -1; l = list_alloc(); if (l == NULL) return FAIL; for (item = list_find(rettv->vval.v_list, n1); n1 <= n2; ++n1) { if (list_append_tv(l, &item->li_tv) == FAIL) { list_free(l, TRUE); return FAIL; } item = item->li_next; } clear_tv(rettv); rettv->v_type = VAR_LIST; rettv->vval.v_list = l; ++l->lv_refcount; } else { copy_tv(&list_find(rettv->vval.v_list, n1)->li_tv, &var1); clear_tv(rettv); *rettv = var1; } break; case VAR_DICT: if (range) { if (verbose) EMSG(_(e_dictrange)); if (len == -1) clear_tv(&var1); return FAIL; } { dictitem_T *item; if (len == -1) { key = get_tv_string(&var1); if (*key == NUL) { if (verbose) EMSG(_(e_emptykey)); clear_tv(&var1); return FAIL; } } item = dict_find(rettv->vval.v_dict, key, (int)len); if (item == NULL && verbose) EMSG2(_(e_dictkey), key); if (len == -1) clear_tv(&var1); if (item == NULL) return FAIL; copy_tv(&item->di_tv, &var1); clear_tv(rettv); *rettv = var1; } break; } } return OK; } /* * Get an option value. * "arg" points to the '&' or '+' before the option name. * "arg" is advanced to character after the option name. * Return OK or FAIL. */ static int get_option_tv(arg, rettv, evaluate) char_u **arg; typval_T *rettv; /* when NULL, only check if option exists */ int evaluate; { char_u *option_end; long numval; char_u *stringval; int opt_type; int c; int working = (**arg == '+'); /* has("+option") */ int ret = OK; int opt_flags; /* * Isolate the option name and find its value. */ option_end = find_option_end(arg, &opt_flags); if (option_end == NULL) { if (rettv != NULL) EMSG2(_("E112: Option name missing: %s"), *arg); return FAIL; } if (!evaluate) { *arg = option_end; return OK; } c = *option_end; *option_end = NUL; opt_type = get_option_value(*arg, &numval, rettv == NULL ? NULL : &stringval, opt_flags); if (opt_type == -3) /* invalid name */ { if (rettv != NULL) EMSG2(_("E113: Unknown option: %s"), *arg); ret = FAIL; } else if (rettv != NULL) { if (opt_type == -2) /* hidden string option */ { rettv->v_type = VAR_STRING; rettv->vval.v_string = NULL; } else if (opt_type == -1) /* hidden number option */ { rettv->v_type = VAR_NUMBER; rettv->vval.v_number = 0; } else if (opt_type == 1) /* number option */ { rettv->v_type = VAR_NUMBER; rettv->vval.v_number = numval; } else /* string option */ { rettv->v_type = VAR_STRING; rettv->vval.v_string = stringval; } } else if (working && (opt_type == -2 || opt_type == -1)) ret = FAIL; *option_end = c; /* put back for error messages */ *arg = option_end; return ret; } /* * Allocate a variable for a string constant. * Return OK or FAIL. */ static int get_string_tv(arg, rettv, evaluate) char_u **arg; typval_T *rettv; int evaluate; { char_u *p; char_u *name; int extra = 0; /* * Find the end of the string, skipping backslashed characters. */ for (p = *arg + 1; *p != NUL && *p != '"'; mb_ptr_adv(p)) { if (*p == '\\' && p[1] != NUL) { ++p; /* A "\<x>" form occupies at least 4 characters, and produces up * to 6 characters: reserve space for 2 extra */ if (*p == '<') extra += 2; } } if (*p != '"') { EMSG2(_("E114: Missing quote: %s"), *arg); return FAIL; } /* If only parsing, set *arg and return here */ if (!evaluate) { *arg = p + 1; return OK; } /* * Copy the string into allocated memory, handling backslashed * characters. */ name = alloc((unsigned)(p - *arg + extra)); if (name == NULL) return FAIL; rettv->v_type = VAR_STRING; rettv->vval.v_string = name; for (p = *arg + 1; *p != NUL && *p != '"'; ) { if (*p == '\\') { switch (*++p) { case 'b': *name++ = BS; ++p; break; case 'e': *name++ = ESC; ++p; break; case 'f': *name++ = FF; ++p; break; case 'n': *name++ = NL; ++p; break; case 'r': *name++ = CAR; ++p; break; case 't': *name++ = TAB; ++p; break; case 'X': /* hex: "\x1", "\x12" */ case 'x': case 'u': /* Unicode: "\u0023" */ case 'U': if (vim_isxdigit(p[1])) { int n, nr; int c = toupper(*p); if (c == 'X') n = 2; else n = 4; nr = 0; while (--n >= 0 && vim_isxdigit(p[1])) { ++p; nr = (nr << 4) + hex2nr(*p); } ++p; #ifdef FEAT_MBYTE /* For "\u" store the number according to * 'encoding'. */ if (c != 'X') name += (*mb_char2bytes)(nr, name); else #endif *name++ = nr; } break; /* octal: "\1", "\12", "\123" */ case '0': case '1': case '2': case '3': case '4': case '5': case '6': case '7': *name = *p++ - '0'; if (*p >= '0' && *p <= '7') { *name = (*name << 3) + *p++ - '0'; if (*p >= '0' && *p <= '7') *name = (*name << 3) + *p++ - '0'; } ++name; break; /* Special key, e.g.: "\<C-W>" */ case '<': extra = trans_special(&p, name, TRUE); if (extra != 0) { name += extra; break; } /* FALLTHROUGH */ default: MB_COPY_CHAR(p, name); break; } } else MB_COPY_CHAR(p, name); } *name = NUL; *arg = p + 1; return OK; } /* * Allocate a variable for a 'str''ing' constant. * Return OK or FAIL. */ static int get_lit_string_tv(arg, rettv, evaluate) char_u **arg; typval_T *rettv; int evaluate; { char_u *p; char_u *str; int reduce = 0; /* * Find the end of the string, skipping ''. */ for (p = *arg + 1; *p != NUL; mb_ptr_adv(p)) { if (*p == '\'') { if (p[1] != '\'') break; ++reduce; ++p; } } if (*p != '\'') { EMSG2(_("E115: Missing quote: %s"), *arg); return FAIL; } /* If only parsing return after setting "*arg" */ if (!evaluate) { *arg = p + 1; return OK; } /* * Copy the string into allocated memory, handling '' to ' reduction. */ str = alloc((unsigned)((p - *arg) - reduce)); if (str == NULL) return FAIL; rettv->v_type = VAR_STRING; rettv->vval.v_string = str; for (p = *arg + 1; *p != NUL; ) { if (*p == '\'') { if (p[1] != '\'') break; ++p; } MB_COPY_CHAR(p, str); } *str = NUL; *arg = p + 1; return OK; } /* * Allocate a variable for a List and fill it from "*arg". * Return OK or FAIL. */ static int get_list_tv(arg, rettv, evaluate) char_u **arg; typval_T *rettv; int evaluate; { list_T *l = NULL; typval_T tv; listitem_T *item; if (evaluate) { l = list_alloc(); if (l == NULL) return FAIL; } *arg = skipwhite(*arg + 1); while (**arg != ']' && **arg != NUL) { if (eval1(arg, &tv, evaluate) == FAIL) /* recursive! */ goto failret; if (evaluate) { item = listitem_alloc(); if (item != NULL) { item->li_tv = tv; item->li_tv.v_lock = 0; list_append(l, item); } else clear_tv(&tv); } if (**arg == ']') break; if (**arg != ',') { EMSG2(_("E696: Missing comma in List: %s"), *arg); goto failret; } *arg = skipwhite(*arg + 1); } if (**arg != ']') { EMSG2(_("E697: Missing end of List ']': %s"), *arg); failret: if (evaluate) list_free(l, TRUE); return FAIL; } *arg = skipwhite(*arg + 1); if (evaluate) { rettv->v_type = VAR_LIST; rettv->vval.v_list = l; ++l->lv_refcount; } return OK; } /* * Allocate an empty header for a list. * Caller should take care of the reference count. */ list_T * list_alloc() { list_T *l; l = (list_T *)alloc_clear(sizeof(list_T)); if (l != NULL) { /* Prepend the list to the list of lists for garbage collection. */ if (first_list != NULL) first_list->lv_used_prev = l; l->lv_used_prev = NULL; l->lv_used_next = first_list; first_list = l; } return l; } /* * Allocate an empty list for a return value. * Returns OK or FAIL. */ static int rettv_list_alloc(rettv) typval_T *rettv; { list_T *l = list_alloc(); if (l == NULL) return FAIL; rettv->vval.v_list = l; rettv->v_type = VAR_LIST; ++l->lv_refcount; return OK; } /* * Unreference a list: decrement the reference count and free it when it * becomes zero. */ void list_unref(l) list_T *l; { if (l != NULL && --l->lv_refcount <= 0) list_free(l, TRUE); } /* * Free a list, including all items it points to. * Ignores the reference count. */ void list_free(l, recurse) list_T *l; int recurse; /* Free Lists and Dictionaries recursively. */ { listitem_T *item; /* Remove the list from the list of lists for garbage collection. */ if (l->lv_used_prev == NULL) first_list = l->lv_used_next; else l->lv_used_prev->lv_used_next = l->lv_used_next; if (l->lv_used_next != NULL) l->lv_used_next->lv_used_prev = l->lv_used_prev; for (item = l->lv_first; item != NULL; item = l->lv_first) { /* Remove the item before deleting it. */ l->lv_first = item->li_next; if (recurse || (item->li_tv.v_type != VAR_LIST && item->li_tv.v_type != VAR_DICT)) clear_tv(&item->li_tv); vim_free(item); } vim_free(l); } /* * Allocate a list item. */ static listitem_T * listitem_alloc() { return (listitem_T *)alloc(sizeof(listitem_T)); } /* * Free a list item. Also clears the value. Does not notify watchers. */ static void listitem_free(item) listitem_T *item; { clear_tv(&item->li_tv); vim_free(item); } /* * Remove a list item from a List and free it. Also clears the value. */ static void listitem_remove(l, item) list_T *l; listitem_T *item; { list_remove(l, item, item); listitem_free(item); } /* * Get the number of items in a list. */ static long list_len(l) list_T *l; { if (l == NULL) return 0L; return l->lv_len; } /* * Return TRUE when two lists have exactly the same values. */ static int list_equal(l1, l2, ic) list_T *l1; list_T *l2; int ic; /* ignore case for strings */ { listitem_T *item1, *item2; if (l1 == l2) return TRUE; if (list_len(l1) != list_len(l2)) return FALSE; for (item1 = l1->lv_first, item2 = l2->lv_first; item1 != NULL && item2 != NULL; item1 = item1->li_next, item2 = item2->li_next) if (!tv_equal(&item1->li_tv, &item2->li_tv, ic)) return FALSE; return item1 == NULL && item2 == NULL; } #if defined(FEAT_PYTHON) || defined(PROTO) /* * Return the dictitem that an entry in a hashtable points to. */ dictitem_T * dict_lookup(hi) hashitem_T *hi; { return HI2DI(hi); } #endif /* * Return TRUE when two dictionaries have exactly the same key/values. */ static int dict_equal(d1, d2, ic) dict_T *d1; dict_T *d2; int ic; /* ignore case for strings */ { hashitem_T *hi; dictitem_T *item2; int todo; if (d1 == d2) return TRUE; if (dict_len(d1) != dict_len(d2)) return FALSE; todo = (int)d1->dv_hashtab.ht_used; for (hi = d1->dv_hashtab.ht_array; todo > 0; ++hi) { if (!HASHITEM_EMPTY(hi)) { item2 = dict_find(d2, hi->hi_key, -1); if (item2 == NULL) return FALSE; if (!tv_equal(&HI2DI(hi)->di_tv, &item2->di_tv, ic)) return FALSE; --todo; } } return TRUE; } /* * Return TRUE if "tv1" and "tv2" have the same value. * Compares the items just like "==" would compare them, but strings and * numbers are different. */ static int tv_equal(tv1, tv2, ic) typval_T *tv1; typval_T *tv2; int ic; /* ignore case */ { char_u buf1[NUMBUFLEN], buf2[NUMBUFLEN]; char_u *s1, *s2; static int recursive = 0; /* cach recursive loops */ int r; if (tv1->v_type != tv2->v_type) return FALSE; /* Catch lists and dicts that have an endless loop by limiting * recursiveness to 1000. We guess they are equal then. */ if (recursive >= 1000) return TRUE; switch (tv1->v_type) { case VAR_LIST: ++recursive; r = list_equal(tv1->vval.v_list, tv2->vval.v_list, ic); --recursive; return r; case VAR_DICT: ++recursive; r = dict_equal(tv1->vval.v_dict, tv2->vval.v_dict, ic); --recursive; return r; case VAR_FUNC: return (tv1->vval.v_string != NULL && tv2->vval.v_string != NULL && STRCMP(tv1->vval.v_string, tv2->vval.v_string) == 0); case VAR_NUMBER: return tv1->vval.v_number == tv2->vval.v_number; case VAR_STRING: s1 = get_tv_string_buf(tv1, buf1); s2 = get_tv_string_buf(tv2, buf2); return ((ic ? MB_STRICMP(s1, s2) : STRCMP(s1, s2)) == 0); } EMSG2(_(e_intern2), "tv_equal()"); return TRUE; } /* * Locate item with index "n" in list "l" and return it. * A negative index is counted from the end; -1 is the last item. * Returns NULL when "n" is out of range. */ static listitem_T * list_find(l, n) list_T *l; long n; { listitem_T *item; long idx; if (l == NULL) return NULL; /* Negative index is relative to the end. */ if (n < 0) n = l->lv_len + n; /* Check for index out of range. */ if (n < 0 || n >= l->lv_len) return NULL; /* When there is a cached index may start search from there. */ if (l->lv_idx_item != NULL) { if (n < l->lv_idx / 2) { /* closest to the start of the list */ item = l->lv_first; idx = 0; } else if (n > (l->lv_idx + l->lv_len) / 2) { /* closest to the end of the list */ item = l->lv_last; idx = l->lv_len - 1; } else { /* closest to the cached index */ item = l->lv_idx_item; idx = l->lv_idx; } } else { if (n < l->lv_len / 2) { /* closest to the start of the list */ item = l->lv_first; idx = 0; } else { /* closest to the end of the list */ item = l->lv_last; idx = l->lv_len - 1; } } while (n > idx) { /* search forward */ item = item->li_next; ++idx; } while (n < idx) { /* search backward */ item = item->li_prev; --idx; } /* cache the used index */ l->lv_idx = idx; l->lv_idx_item = item; return item; } /* * Get list item "l[idx]" as a number. */ static long list_find_nr(l, idx, errorp) list_T *l; long idx; int *errorp; /* set to TRUE when something wrong */ { listitem_T *li; li = list_find(l, idx); if (li == NULL) { if (errorp != NULL) *errorp = TRUE; return -1L; } return get_tv_number_chk(&li->li_tv, errorp); } /* * Locate "item" list "l" and return its index. * Returns -1 when "item" is not in the list. */ static long list_idx_of_item(l, item) list_T *l; listitem_T *item; { long idx = 0; listitem_T *li; if (l == NULL) return -1; idx = 0; for (li = l->lv_first; li != NULL && li != item; li = li->li_next) ++idx; if (li == NULL) return -1; return idx; } /* * Append item "item" to the end of list "l". */ static void list_append(l, item) list_T *l; listitem_T *item; { if (l->lv_last == NULL) { /* empty list */ l->lv_first = item; l->lv_last = item; item->li_prev = NULL; } else { l->lv_last->li_next = item; item->li_prev = l->lv_last; l->lv_last = item; } ++l->lv_len; item->li_next = NULL; } /* * Append typval_T "tv" to the end of list "l". * Return FAIL when out of memory. */ static int list_append_tv(l, tv) list_T *l; typval_T *tv; { listitem_T *li = listitem_alloc(); if (li == NULL) return FAIL; copy_tv(tv, &li->li_tv); list_append(l, li); return OK; } /* * Add a dictionary to a list. Used by getqflist(). * Return FAIL when out of memory. */ int list_append_dict(list, dict) list_T *list; dict_T *dict; { listitem_T *li = listitem_alloc(); if (li == NULL) return FAIL; li->li_tv.v_type = VAR_DICT; li->li_tv.v_lock = 0; li->li_tv.vval.v_dict = dict; list_append(list, li); ++dict->dv_refcount; return OK; } /* * Make a copy of "str" and append it as an item to list "l". * When "len" >= 0 use "str[len]". * Returns FAIL when out of memory. */ static int list_append_string(l, str, len) list_T *l; char_u *str; int len; { listitem_T *li = listitem_alloc(); if (li == NULL) return FAIL; list_append(l, li); li->li_tv.v_type = VAR_STRING; li->li_tv.v_lock = 0; if (str == NULL) li->li_tv.vval.v_string = NULL; else if ((li->li_tv.vval.v_string = (len >= 0 ? vim_strnsave(str, len) : vim_strsave(str))) == NULL) return FAIL; return OK; } /* * Append "n" to list "l". * Returns FAIL when out of memory. */ static int list_append_number(l, n) list_T *l; varnumber_T n; { listitem_T *li; li = listitem_alloc(); if (li == NULL) return FAIL; li->li_tv.v_type = VAR_NUMBER; li->li_tv.v_lock = 0; li->li_tv.vval.v_number = n; list_append(l, li); return OK; } /* * Insert typval_T "tv" in list "l" before "item". * If "item" is NULL append at the end. * Return FAIL when out of memory. */ static int list_insert_tv(l, tv, item) list_T *l; typval_T *tv; listitem_T *item; { listitem_T *ni = listitem_alloc(); if (ni == NULL) return FAIL; copy_tv(tv, &ni->li_tv); if (item == NULL) /* Append new item at end of list. */ list_append(l, ni); else { /* Insert new item before existing item. */ ni->li_prev = item->li_prev; ni->li_next = item; if (item->li_prev == NULL) { l->lv_first = ni; ++l->lv_idx; } else { item->li_prev->li_next = ni; l->lv_idx_item = NULL; } item->li_prev = ni; ++l->lv_len; } return OK; } /* * Extend "l1" with "l2". * If "bef" is NULL append at the end, otherwise insert before this item. * Returns FAIL when out of memory. */ static int list_extend(l1, l2, bef) list_T *l1; list_T *l2; listitem_T *bef; { listitem_T *item; for (item = l2->lv_first; item != NULL; item = item->li_next) if (list_insert_tv(l1, &item->li_tv, bef) == FAIL) return FAIL; return OK; } /* * Concatenate lists "l1" and "l2" into a new list, stored in "tv". * Return FAIL when out of memory. */ static int list_concat(l1, l2, tv) list_T *l1; list_T *l2; typval_T *tv; { list_T *l; /* make a copy of the first list. */ l = list_copy(l1, FALSE, 0); if (l == NULL) return FAIL; tv->v_type = VAR_LIST; tv->vval.v_list = l; /* append all items from the second list */ return list_extend(l, l2, NULL); } /* * Make a copy of list "orig". Shallow if "deep" is FALSE. * The refcount of the new list is set to 1. * See item_copy() for "copyID". * Returns NULL when out of memory. */ static list_T * list_copy(orig, deep, copyID) list_T *orig; int deep; int copyID; { list_T *copy; listitem_T *item; listitem_T *ni; if (orig == NULL) return NULL; copy = list_alloc(); if (copy != NULL) { if (copyID != 0) { /* Do this before adding the items, because one of the items may * refer back to this list. */ orig->lv_copyID = copyID; orig->lv_copylist = copy; } for (item = orig->lv_first; item != NULL && !got_int; item = item->li_next) { ni = listitem_alloc(); if (ni == NULL) break; if (deep) { if (item_copy(&item->li_tv, &ni->li_tv, deep, copyID) == FAIL) { vim_free(ni); break; } } else copy_tv(&item->li_tv, &ni->li_tv); list_append(copy, ni); } ++copy->lv_refcount; if (item != NULL) { list_unref(copy); copy = NULL; } } return copy; } /* * Remove items "item" to "item2" from list "l". * Does not free the listitem or the value! */ static void list_remove(l, item, item2) list_T *l; listitem_T *item; listitem_T *item2; { listitem_T *ip; /* notify watchers */ for (ip = item; ip != NULL; ip = ip->li_next) { --l->lv_len; list_fix_watch(l, ip); if (ip == item2) break; } if (item2->li_next == NULL) l->lv_last = item->li_prev; else item2->li_next->li_prev = item->li_prev; if (item->li_prev == NULL) l->lv_first = item2->li_next; else item->li_prev->li_next = item2->li_next; l->lv_idx_item = NULL; } /* * Return an allocated string with the string representation of a list. * May return NULL. */ static char_u * list2string(tv, copyID) typval_T *tv; int copyID; { garray_T ga; if (tv->vval.v_list == NULL) return NULL; ga_init2(&ga, (int)sizeof(char), 80); ga_append(&ga, '['); if (list_join(&ga, tv->vval.v_list, (char_u *)", ", FALSE, copyID) == FAIL) { vim_free(ga.ga_data); return NULL; } ga_append(&ga, ']'); ga_append(&ga, NUL); return (char_u *)ga.ga_data; } /* * Join list "l" into a string in "*gap", using separator "sep". * When "echo" is TRUE use String as echoed, otherwise as inside a List. * Return FAIL or OK. */ static int list_join(gap, l, sep, echo, copyID) garray_T *gap; list_T *l; char_u *sep; int echo; int copyID; { int first = TRUE; char_u *tofree; char_u numbuf[NUMBUFLEN]; listitem_T *item; char_u *s; for (item = l->lv_first; item != NULL && !got_int; item = item->li_next) { if (first) first = FALSE; else ga_concat(gap, sep); if (echo) s = echo_string(&item->li_tv, &tofree, numbuf, copyID); else s = tv2string(&item->li_tv, &tofree, numbuf, copyID); if (s != NULL) ga_concat(gap, s); vim_free(tofree); if (s == NULL) return FAIL; } return OK; } /* * Garbage collection for lists and dictionaries. * * We use reference counts to be able to free most items right away when they * are no longer used. But for composite items it's possible that it becomes * unused while the reference count is > 0: When there is a recursive * reference. Example: * :let l = [1, 2, 3] * :let d = {9: l} * :let l[1] = d * * Since this is quite unusual we handle this with garbage collection: every * once in a while find out which lists and dicts are not referenced from any * variable. * * Here is a good reference text about garbage collection (refers to Python * but it applies to all reference-counting mechanisms): * http://python.ca/nas/python/gc/ */ /* * Do garbage collection for lists and dicts. * Return TRUE if some memory was freed. */ int garbage_collect() { dict_T *dd; list_T *ll; int copyID = ++current_copyID; buf_T *buf; win_T *wp; int i; funccall_T *fc; int did_free = FALSE; #ifdef FEAT_WINDOWS tabpage_T *tp; #endif /* Only do this once. */ want_garbage_collect = FALSE; may_garbage_collect = FALSE; /* * 1. Go through all accessible variables and mark all lists and dicts * with copyID. */ /* script-local variables */ for (i = 1; i <= ga_scripts.ga_len; ++i) set_ref_in_ht(&SCRIPT_VARS(i), copyID); /* buffer-local variables */ for (buf = firstbuf; buf != NULL; buf = buf->b_next) set_ref_in_ht(&buf->b_vars.dv_hashtab, copyID); /* window-local variables */ FOR_ALL_TAB_WINDOWS(tp, wp) set_ref_in_ht(&wp->w_vars.dv_hashtab, copyID); #ifdef FEAT_WINDOWS /* tabpage-local variables */ for (tp = first_tabpage; tp != NULL; tp = tp->tp_next) set_ref_in_ht(&tp->tp_vars.dv_hashtab, copyID); #endif /* global variables */ set_ref_in_ht(&globvarht, copyID); /* function-local variables */ for (fc = current_funccal; fc != NULL; fc = fc->caller) { set_ref_in_ht(&fc->l_vars.dv_hashtab, copyID); set_ref_in_ht(&fc->l_avars.dv_hashtab, copyID); } /* * 2. Go through the list of dicts and free items without the copyID. */ for (dd = first_dict; dd != NULL; ) if (dd->dv_copyID != copyID) { /* Free the Dictionary and ordinary items it contains, but don't * recurse into Lists and Dictionaries, they will be in the list * of dicts or list of lists. */ dict_free(dd, FALSE); did_free = TRUE; /* restart, next dict may also have been freed */ dd = first_dict; } else dd = dd->dv_used_next; /* * 3. Go through the list of lists and free items without the copyID. * But don't free a list that has a watcher (used in a for loop), these * are not referenced anywhere. */ for (ll = first_list; ll != NULL; ) if (ll->lv_copyID != copyID && ll->lv_watch == NULL) { /* Free the List and ordinary items it contains, but don't recurse * into Lists and Dictionaries, they will be in the list of dicts * or list of lists. */ list_free(ll, FALSE); did_free = TRUE; /* restart, next list may also have been freed */ ll = first_list; } else ll = ll->lv_used_next; return did_free; } /* * Mark all lists and dicts referenced through hashtab "ht" with "copyID". */ static void set_ref_in_ht(ht, copyID) hashtab_T *ht; int copyID; { int todo; hashitem_T *hi; todo = (int)ht->ht_used; for (hi = ht->ht_array; todo > 0; ++hi) if (!HASHITEM_EMPTY(hi)) { --todo; set_ref_in_item(&HI2DI(hi)->di_tv, copyID); } } /* * Mark all lists and dicts referenced through list "l" with "copyID". */ static void set_ref_in_list(l, copyID) list_T *l; int copyID; { listitem_T *li; for (li = l->lv_first; li != NULL; li = li->li_next) set_ref_in_item(&li->li_tv, copyID); } /* * Mark all lists and dicts referenced through typval "tv" with "copyID". */ static void set_ref_in_item(tv, copyID) typval_T *tv; int copyID; { dict_T *dd; list_T *ll; switch (tv->v_type) { case VAR_DICT: dd = tv->vval.v_dict; if (dd->dv_copyID != copyID) { /* Didn't see this dict yet. */ dd->dv_copyID = copyID; set_ref_in_ht(&dd->dv_hashtab, copyID); } break; case VAR_LIST: ll = tv->vval.v_list; if (ll->lv_copyID != copyID) { /* Didn't see this list yet. */ ll->lv_copyID = copyID; set_ref_in_list(ll, copyID); } break; } return; } /* * Allocate an empty header for a dictionary. */ dict_T * dict_alloc() { dict_T *d; d = (dict_T *)alloc(sizeof(dict_T)); if (d != NULL) { /* Add the list to the list of dicts for garbage collection. */ if (first_dict != NULL) first_dict->dv_used_prev = d; d->dv_used_next = first_dict; d->dv_used_prev = NULL; first_dict = d; hash_init(&d->dv_hashtab); d->dv_lock = 0; d->dv_refcount = 0; d->dv_copyID = 0; } return d; } /* * Unreference a Dictionary: decrement the reference count and free it when it * becomes zero. */ static void dict_unref(d) dict_T *d; { if (d != NULL && --d->dv_refcount <= 0) dict_free(d, TRUE); } /* * Free a Dictionary, including all items it contains. * Ignores the reference count. */ static void dict_free(d, recurse) dict_T *d; int recurse; /* Free Lists and Dictionaries recursively. */ { int todo; hashitem_T *hi; dictitem_T *di; /* Remove the dict from the list of dicts for garbage collection. */ if (d->dv_used_prev == NULL) first_dict = d->dv_used_next; else d->dv_used_prev->dv_used_next = d->dv_used_next; if (d->dv_used_next != NULL) d->dv_used_next->dv_used_prev = d->dv_used_prev; /* Lock the hashtab, we don't want it to resize while freeing items. */ hash_lock(&d->dv_hashtab); todo = (int)d->dv_hashtab.ht_used; for (hi = d->dv_hashtab.ht_array; todo > 0; ++hi) { if (!HASHITEM_EMPTY(hi)) { /* Remove the item before deleting it, just in case there is * something recursive causing trouble. */ di = HI2DI(hi); hash_remove(&d->dv_hashtab, hi); if (recurse || (di->di_tv.v_type != VAR_LIST && di->di_tv.v_type != VAR_DICT)) clear_tv(&di->di_tv); vim_free(di); --todo; } } hash_clear(&d->dv_hashtab); vim_free(d); } /* * Allocate a Dictionary item. * The "key" is copied to the new item. * Note that the value of the item "di_tv" still needs to be initialized! * Returns NULL when out of memory. */ static dictitem_T * dictitem_alloc(key) char_u *key; { dictitem_T *di; di = (dictitem_T *)alloc((unsigned)(sizeof(dictitem_T) + STRLEN(key))); if (di != NULL) { STRCPY(di->di_key, key); di->di_flags = 0; } return di; } /* * Make a copy of a Dictionary item. */ static dictitem_T * dictitem_copy(org) dictitem_T *org; { dictitem_T *di; di = (dictitem_T *)alloc((unsigned)(sizeof(dictitem_T) + STRLEN(org->di_key))); if (di != NULL) { STRCPY(di->di_key, org->di_key); di->di_flags = 0; copy_tv(&org->di_tv, &di->di_tv); } return di; } /* * Remove item "item" from Dictionary "dict" and free it. */ static void dictitem_remove(dict, item) dict_T *dict; dictitem_T *item; { hashitem_T *hi; hi = hash_find(&dict->dv_hashtab, item->di_key); if (HASHITEM_EMPTY(hi)) EMSG2(_(e_intern2), "dictitem_remove()"); else hash_remove(&dict->dv_hashtab, hi); dictitem_free(item); } /* * Free a dict item. Also clears the value. */ static void dictitem_free(item) dictitem_T *item; { clear_tv(&item->di_tv); vim_free(item); } /* * Make a copy of dict "d". Shallow if "deep" is FALSE. * The refcount of the new dict is set to 1. * See item_copy() for "copyID". * Returns NULL when out of memory. */ static dict_T * dict_copy(orig, deep, copyID) dict_T *orig; int deep; int copyID; { dict_T *copy; dictitem_T *di; int todo; hashitem_T *hi; if (orig == NULL) return NULL; copy = dict_alloc(); if (copy != NULL) { if (copyID != 0) { orig->dv_copyID = copyID; orig->dv_copydict = copy; } todo = (int)orig->dv_hashtab.ht_used; for (hi = orig->dv_hashtab.ht_array; todo > 0 && !got_int; ++hi) { if (!HASHITEM_EMPTY(hi)) { --todo; di = dictitem_alloc(hi->hi_key); if (di == NULL) break; if (deep) { if (item_copy(&HI2DI(hi)->di_tv, &di->di_tv, deep, copyID) == FAIL) { vim_free(di); break; } } else copy_tv(&HI2DI(hi)->di_tv, &di->di_tv); if (dict_add(copy, di) == FAIL) { dictitem_free(di); break; } } } ++copy->dv_refcount; if (todo > 0) { dict_unref(copy); copy = NULL; } } return copy; } /* * Add item "item" to Dictionary "d". * Returns FAIL when out of memory and when key already existed. */ static int dict_add(d, item) dict_T *d; dictitem_T *item; { return hash_add(&d->dv_hashtab, item->di_key); } /* * Add a number or string entry to dictionary "d". * When "str" is NULL use number "nr", otherwise use "str". * Returns FAIL when out of memory and when key already exists. */ int dict_add_nr_str(d, key, nr, str) dict_T *d; char *key; long nr; char_u *str; { dictitem_T *item; item = dictitem_alloc((char_u *)key); if (item == NULL) return FAIL; item->di_tv.v_lock = 0; if (str == NULL) { item->di_tv.v_type = VAR_NUMBER; item->di_tv.vval.v_number = nr; } else { item->di_tv.v_type = VAR_STRING; item->di_tv.vval.v_string = vim_strsave(str); } if (dict_add(d, item) == FAIL) { dictitem_free(item); return FAIL; } return OK; } /* * Get the number of items in a Dictionary. */ static long dict_len(d) dict_T *d; { if (d == NULL) return 0L; return (long)d->dv_hashtab.ht_used; } /* * Find item "key[len]" in Dictionary "d". * If "len" is negative use strlen(key). * Returns NULL when not found. */ static dictitem_T * dict_find(d, key, len) dict_T *d; char_u *key; int len; { #define AKEYLEN 200 char_u buf[AKEYLEN]; char_u *akey; char_u *tofree = NULL; hashitem_T *hi; if (len < 0) akey = key; else if (len >= AKEYLEN) { tofree = akey = vim_strnsave(key, len); if (akey == NULL) return NULL; } else { /* Avoid a malloc/free by using buf[]. */ vim_strncpy(buf, key, len); akey = buf; } hi = hash_find(&d->dv_hashtab, akey); vim_free(tofree); if (HASHITEM_EMPTY(hi)) return NULL; return HI2DI(hi); } /* * Get a string item from a dictionary. * When "save" is TRUE allocate memory for it. * Returns NULL if the entry doesn't exist or out of memory. */ char_u * get_dict_string(d, key, save) dict_T *d; char_u *key; int save; { dictitem_T *di; char_u *s; di = dict_find(d, key, -1); if (di == NULL) return NULL; s = get_tv_string(&di->di_tv); if (save && s != NULL) s = vim_strsave(s); return s; } /* * Get a number item from a dictionary. * Returns 0 if the entry doesn't exist or out of memory. */ long get_dict_number(d, key) dict_T *d; char_u *key; { dictitem_T *di; di = dict_find(d, key, -1); if (di == NULL) return 0; return get_tv_number(&di->di_tv); } /* * Return an allocated string with the string representation of a Dictionary. * May return NULL. */ static char_u * dict2string(tv, copyID) typval_T *tv; int copyID; { garray_T ga; int first = TRUE; char_u *tofree; char_u numbuf[NUMBUFLEN]; hashitem_T *hi; char_u *s; dict_T *d; int todo; if ((d = tv->vval.v_dict) == NULL) return NULL; ga_init2(&ga, (int)sizeof(char), 80); ga_append(&ga, '{'); todo = (int)d->dv_hashtab.ht_used; for (hi = d->dv_hashtab.ht_array; todo > 0 && !got_int; ++hi) { if (!HASHITEM_EMPTY(hi)) { --todo; if (first) first = FALSE; else ga_concat(&ga, (char_u *)", "); tofree = string_quote(hi->hi_key, FALSE); if (tofree != NULL) { ga_concat(&ga, tofree); vim_free(tofree); } ga_concat(&ga, (char_u *)": "); s = tv2string(&HI2DI(hi)->di_tv, &tofree, numbuf, copyID); if (s != NULL) ga_concat(&ga, s); vim_free(tofree); if (s == NULL) break; } } if (todo > 0) { vim_free(ga.ga_data); return NULL; } ga_append(&ga, '}'); ga_append(&ga, NUL); return (char_u *)ga.ga_data; } /* * Allocate a variable for a Dictionary and fill it from "*arg". * Return OK or FAIL. Returns NOTDONE for {expr}. */ static int get_dict_tv(arg, rettv, evaluate) char_u **arg; typval_T *rettv; int evaluate; { dict_T *d = NULL; typval_T tvkey; typval_T tv; char_u *key; dictitem_T *item; char_u *start = skipwhite(*arg + 1); char_u buf[NUMBUFLEN]; /* * First check if it's not a curly-braces thing: {expr}. * Must do this without evaluating, otherwise a function may be called * twice. Unfortunately this means we need to call eval1() twice for the * first item. * But {} is an empty Dictionary. */ if (*start != '}') { if (eval1(&start, &tv, FALSE) == FAIL) /* recursive! */ return FAIL; if (*start == '}') return NOTDONE; } if (evaluate) { d = dict_alloc(); if (d == NULL) return FAIL; } tvkey.v_type = VAR_UNKNOWN; tv.v_type = VAR_UNKNOWN; *arg = skipwhite(*arg + 1); while (**arg != '}' && **arg != NUL) { if (eval1(arg, &tvkey, evaluate) == FAIL) /* recursive! */ goto failret; if (**arg != ':') { EMSG2(_("E720: Missing colon in Dictionary: %s"), *arg); clear_tv(&tvkey); goto failret; } key = get_tv_string_buf_chk(&tvkey, buf); if (key == NULL || *key == NUL) { /* "key" is NULL when get_tv_string_buf_chk() gave an errmsg */ if (key != NULL) EMSG(_(e_emptykey)); clear_tv(&tvkey); goto failret; } *arg = skipwhite(*arg + 1); if (eval1(arg, &tv, evaluate) == FAIL) /* recursive! */ { clear_tv(&tvkey); goto failret; } if (evaluate) { item = dict_find(d, key, -1); if (item != NULL) { EMSG2(_("E721: Duplicate key in Dictionary: \"%s\""), key); clear_tv(&tvkey); clear_tv(&tv); goto failret; } item = dictitem_alloc(key); clear_tv(&tvkey); if (item != NULL) { item->di_tv = tv; item->di_tv.v_lock = 0; if (dict_add(d, item) == FAIL) dictitem_free(item); } } if (**arg == '}') break; if (**arg != ',') { EMSG2(_("E722: Missing comma in Dictionary: %s"), *arg); goto failret; } *arg = skipwhite(*arg + 1); } if (**arg != '}') { EMSG2(_("E723: Missing end of Dictionary '}': %s"), *arg); failret: if (evaluate) dict_free(d, TRUE); return FAIL; } *arg = skipwhite(*arg + 1); if (evaluate) { rettv->v_type = VAR_DICT; rettv->vval.v_dict = d; ++d->dv_refcount; } return OK; } /* * Return a string with the string representation of a variable. * If the memory is allocated "tofree" is set to it, otherwise NULL. * "numbuf" is used for a number. * Does not put quotes around strings, as ":echo" displays values. * When "copyID" is not NULL replace recursive lists and dicts with "...". * May return NULL; */ static char_u * echo_string(tv, tofree, numbuf, copyID) typval_T *tv; char_u **tofree; char_u *numbuf; int copyID; { static int recurse = 0; char_u *r = NULL; if (recurse >= DICT_MAXNEST) { EMSG(_("E724: variable nested too deep for displaying")); *tofree = NULL; return NULL; } ++recurse; switch (tv->v_type) { case VAR_FUNC: *tofree = NULL; r = tv->vval.v_string; break; case VAR_LIST: if (tv->vval.v_list == NULL) { *tofree = NULL; r = NULL; } else if (copyID != 0 && tv->vval.v_list->lv_copyID == copyID) { *tofree = NULL; r = (char_u *)"[...]"; } else { tv->vval.v_list->lv_copyID = copyID; *tofree = list2string(tv, copyID); r = *tofree; } break; case VAR_DICT: if (tv->vval.v_dict == NULL) { *tofree = NULL; r = NULL; } else if (copyID != 0 && tv->vval.v_dict->dv_copyID == copyID) { *tofree = NULL; r = (char_u *)"{...}"; } else { tv->vval.v_dict->dv_copyID = copyID; *tofree = dict2string(tv, copyID); r = *tofree; } break; case VAR_STRING: case VAR_NUMBER: *tofree = NULL; r = get_tv_string_buf(tv, numbuf); break; default: EMSG2(_(e_intern2), "echo_string()"); *tofree = NULL; } --recurse; return r; } /* * Return a string with the string representation of a variable. * If the memory is allocated "tofree" is set to it, otherwise NULL. * "numbuf" is used for a number. * Puts quotes around strings, so that they can be parsed back by eval(). * May return NULL; */ static char_u * tv2string(tv, tofree, numbuf, copyID) typval_T *tv; char_u **tofree; char_u *numbuf; int copyID; { switch (tv->v_type) { case VAR_FUNC: *tofree = string_quote(tv->vval.v_string, TRUE); return *tofree; case VAR_STRING: *tofree = string_quote(tv->vval.v_string, FALSE); return *tofree; case VAR_NUMBER: case VAR_LIST: case VAR_DICT: break; default: EMSG2(_(e_intern2), "tv2string()"); } return echo_string(tv, tofree, numbuf, copyID); } /* * Return string "str" in ' quotes, doubling ' characters. * If "str" is NULL an empty string is assumed. * If "function" is TRUE make it function('string'). */ static char_u * string_quote(str, function) char_u *str; int function; { unsigned len; char_u *p, *r, *s; len = (function ? 13 : 3); if (str != NULL) { len += (unsigned)STRLEN(str); for (p = str; *p != NUL; mb_ptr_adv(p)) if (*p == '\'') ++len; } s = r = alloc(len); if (r != NULL) { if (function) { STRCPY(r, "function('"); r += 10; } else *r++ = '\''; if (str != NULL) for (p = str; *p != NUL; ) { if (*p == '\'') *r++ = '\''; MB_COPY_CHAR(p, r); } *r++ = '\''; if (function) *r++ = ')'; *r++ = NUL; } return s; } /* * Get the value of an environment variable. * "arg" is pointing to the '$'. It is advanced to after the name. * If the environment variable was not set, silently assume it is empty. * Always return OK. */ static int get_env_tv(arg, rettv, evaluate) char_u **arg; typval_T *rettv; int evaluate; { char_u *string = NULL; int len; int cc; char_u *name; int mustfree = FALSE; ++*arg; name = *arg; len = get_env_len(arg); if (evaluate) { if (len != 0) { cc = name[len]; name[len] = NUL; /* first try vim_getenv(), fast for normal environment vars */ string = vim_getenv(name, &mustfree); if (string != NULL && *string != NUL) { if (!mustfree) string = vim_strsave(string); } else { if (mustfree) vim_free(string); /* next try expanding things like $VIM and ${HOME} */ string = expand_env_save(name - 1); if (string != NULL && *string == '$') { vim_free(string); string = NULL; } } name[len] = cc; } rettv->v_type = VAR_STRING; rettv->vval.v_string = string; } return OK; } /* * Array with names and number of arguments of all internal functions * MUST BE KEPT SORTED IN strcmp() ORDER FOR BINARY SEARCH! */ static struct fst { char *f_name; /* function name */ char f_min_argc; /* minimal number of arguments */ char f_max_argc; /* maximal number of arguments */ void (*f_func) __ARGS((typval_T *args, typval_T *rvar)); /* implementation of function */ } functions[] = { {"add", 2, 2, f_add}, {"append", 2, 2, f_append}, {"argc", 0, 0, f_argc}, {"argidx", 0, 0, f_argidx}, {"argv", 0, 1, f_argv}, {"browse", 4, 4, f_browse}, {"browsedir", 2, 2, f_browsedir}, {"bufexists", 1, 1, f_bufexists}, {"buffer_exists", 1, 1, f_bufexists}, /* obsolete */ {"buffer_name", 1, 1, f_bufname}, /* obsolete */ {"buffer_number", 1, 1, f_bufnr}, /* obsolete */ {"buflisted", 1, 1, f_buflisted}, {"bufloaded", 1, 1, f_bufloaded}, {"bufname", 1, 1, f_bufname}, {"bufnr", 1, 2, f_bufnr}, {"bufwinnr", 1, 1, f_bufwinnr}, {"byte2line", 1, 1, f_byte2line}, {"byteidx", 2, 2, f_byteidx}, {"call", 2, 3, f_call}, {"changenr", 0, 0, f_changenr}, {"char2nr", 1, 1, f_char2nr}, {"cindent", 1, 1, f_cindent}, {"col", 1, 1, f_col}, #if defined(FEAT_INS_EXPAND) {"complete", 2, 2, f_complete}, {"complete_add", 1, 1, f_complete_add}, {"complete_check", 0, 0, f_complete_check}, #endif {"confirm", 1, 4, f_confirm}, {"copy", 1, 1, f_copy}, {"count", 2, 4, f_count}, {"cscope_connection",0,3, f_cscope_connection}, {"cursor", 1, 3, f_cursor}, {"deepcopy", 1, 2, f_deepcopy}, {"delete", 1, 1, f_delete}, {"did_filetype", 0, 0, f_did_filetype}, {"diff_filler", 1, 1, f_diff_filler}, {"diff_hlID", 2, 2, f_diff_hlID}, {"empty", 1, 1, f_empty}, {"escape", 2, 2, f_escape}, {"eval", 1, 1, f_eval}, {"eventhandler", 0, 0, f_eventhandler}, {"executable", 1, 1, f_executable}, {"exists", 1, 1, f_exists}, {"expand", 1, 2, f_expand}, {"extend", 2, 3, f_extend}, {"feedkeys", 1, 2, f_feedkeys}, {"file_readable", 1, 1, f_filereadable}, /* obsolete */ {"filereadable", 1, 1, f_filereadable}, {"filewritable", 1, 1, f_filewritable}, {"filter", 2, 2, f_filter}, {"finddir", 1, 3, f_finddir}, {"findfile", 1, 3, f_findfile}, {"fnamemodify", 2, 2, f_fnamemodify}, {"foldclosed", 1, 1, f_foldclosed}, {"foldclosedend", 1, 1, f_foldclosedend}, {"foldlevel", 1, 1, f_foldlevel}, {"foldtext", 0, 0, f_foldtext}, {"foldtextresult", 1, 1, f_foldtextresult}, {"foreground", 0, 0, f_foreground}, {"function", 1, 1, f_function}, {"garbagecollect", 0, 0, f_garbagecollect}, {"get", 2, 3, f_get}, {"getbufline", 2, 3, f_getbufline}, {"getbufvar", 2, 2, f_getbufvar}, {"getchar", 0, 1, f_getchar}, {"getcharmod", 0, 0, f_getcharmod}, {"getcmdline", 0, 0, f_getcmdline}, {"getcmdpos", 0, 0, f_getcmdpos}, {"getcmdtype", 0, 0, f_getcmdtype}, {"getcwd", 0, 0, f_getcwd}, {"getfontname", 0, 1, f_getfontname}, {"getfperm", 1, 1, f_getfperm}, {"getfsize", 1, 1, f_getfsize}, {"getftime", 1, 1, f_getftime}, {"getftype", 1, 1, f_getftype}, {"getline", 1, 2, f_getline}, {"getloclist", 1, 1, f_getqflist}, {"getpos", 1, 1, f_getpos}, {"getqflist", 0, 0, f_getqflist}, {"getreg", 0, 2, f_getreg}, {"getregtype", 0, 1, f_getregtype}, {"gettabwinvar", 3, 3, f_gettabwinvar}, {"getwinposx", 0, 0, f_getwinposx}, {"getwinposy", 0, 0, f_getwinposy}, {"getwinvar", 2, 2, f_getwinvar}, {"glob", 1, 1, f_glob}, {"globpath", 2, 2, f_globpath}, {"has", 1, 1, f_has}, {"has_key", 2, 2, f_has_key}, {"haslocaldir", 0, 0, f_haslocaldir}, {"hasmapto", 1, 3, f_hasmapto}, {"highlightID", 1, 1, f_hlID}, /* obsolete */ {"highlight_exists",1, 1, f_hlexists}, /* obsolete */ {"histadd", 2, 2, f_histadd}, {"histdel", 1, 2, f_histdel}, {"histget", 1, 2, f_histget}, {"histnr", 1, 1, f_histnr}, {"hlID", 1, 1, f_hlID}, {"hlexists", 1, 1, f_hlexists}, {"hostname", 0, 0, f_hostname}, {"iconv", 3, 3, f_iconv}, {"indent", 1, 1, f_indent}, {"index", 2, 4, f_index}, {"input", 1, 3, f_input}, {"inputdialog", 1, 3, f_inputdialog}, {"inputlist", 1, 1, f_inputlist}, {"inputrestore", 0, 0, f_inputrestore}, {"inputsave", 0, 0, f_inputsave}, {"inputsecret", 1, 2, f_inputsecret}, {"insert", 2, 3, f_insert}, {"isdirectory", 1, 1, f_isdirectory}, {"islocked", 1, 1, f_islocked}, {"items", 1, 1, f_items}, {"join", 1, 2, f_join}, {"keys", 1, 1, f_keys}, {"last_buffer_nr", 0, 0, f_last_buffer_nr},/* obsolete */ {"len", 1, 1, f_len}, {"libcall", 3, 3, f_libcall}, {"libcallnr", 3, 3, f_libcallnr}, {"line", 1, 1, f_line}, {"line2byte", 1, 1, f_line2byte}, {"lispindent", 1, 1, f_lispindent}, {"localtime", 0, 0, f_localtime}, {"map", 2, 2, f_map}, {"maparg", 1, 3, f_maparg}, {"mapcheck", 1, 3, f_mapcheck}, {"match", 2, 4, f_match}, {"matcharg", 1, 1, f_matcharg}, {"matchend", 2, 4, f_matchend}, {"matchlist", 2, 4, f_matchlist}, {"matchstr", 2, 4, f_matchstr}, {"max", 1, 1, f_max}, {"min", 1, 1, f_min}, #ifdef vim_mkdir {"mkdir", 1, 3, f_mkdir}, #endif {"mode", 0, 0, f_mode}, {"nextnonblank", 1, 1, f_nextnonblank}, {"nr2char", 1, 1, f_nr2char}, {"pathshorten", 1, 1, f_pathshorten}, {"prevnonblank", 1, 1, f_prevnonblank}, {"printf", 2, 19, f_printf}, {"pumvisible", 0, 0, f_pumvisible}, {"range", 1, 3, f_range}, {"readfile", 1, 3, f_readfile}, {"reltime", 0, 2, f_reltime}, {"reltimestr", 1, 1, f_reltimestr}, {"remote_expr", 2, 3, f_remote_expr}, {"remote_foreground", 1, 1, f_remote_foreground}, {"remote_peek", 1, 2, f_remote_peek}, {"remote_read", 1, 1, f_remote_read}, {"remote_send", 2, 3, f_remote_send}, {"remove", 2, 3, f_remove}, {"rename", 2, 2, f_rename}, {"repeat", 2, 2, f_repeat}, {"resolve", 1, 1, f_resolve}, {"reverse", 1, 1, f_reverse}, {"search", 1, 3, f_search}, {"searchdecl", 1, 3, f_searchdecl}, {"searchpair", 3, 6, f_searchpair}, {"searchpairpos", 3, 6, f_searchpairpos}, {"searchpos", 1, 3, f_searchpos}, {"server2client", 2, 2, f_server2client}, {"serverlist", 0, 0, f_serverlist}, {"setbufvar", 3, 3, f_setbufvar}, {"setcmdpos", 1, 1, f_setcmdpos}, {"setline", 2, 2, f_setline}, {"setloclist", 2, 3, f_setloclist}, {"setpos", 2, 2, f_setpos}, {"setqflist", 1, 2, f_setqflist}, {"setreg", 2, 3, f_setreg}, {"settabwinvar", 4, 4, f_settabwinvar}, {"setwinvar", 3, 3, f_setwinvar}, {"shellescape", 1, 1, f_shellescape}, {"simplify", 1, 1, f_simplify}, {"sort", 1, 2, f_sort}, {"soundfold", 1, 1, f_soundfold}, {"spellbadword", 0, 1, f_spellbadword}, {"spellsuggest", 1, 3, f_spellsuggest}, {"split", 1, 3, f_split}, {"str2nr", 1, 2, f_str2nr}, #ifdef HAVE_STRFTIME {"strftime", 1, 2, f_strftime}, #endif {"stridx", 2, 3, f_stridx}, {"string", 1, 1, f_string}, {"strlen", 1, 1, f_strlen}, {"strpart", 2, 3, f_strpart}, {"strridx", 2, 3, f_strridx}, {"strtrans", 1, 1, f_strtrans}, {"submatch", 1, 1, f_submatch}, {"substitute", 4, 4, f_substitute}, {"synID", 3, 3, f_synID}, {"synIDattr", 2, 3, f_synIDattr}, {"synIDtrans", 1, 1, f_synIDtrans}, {"system", 1, 2, f_system}, {"tabpagebuflist", 0, 1, f_tabpagebuflist}, {"tabpagenr", 0, 1, f_tabpagenr}, {"tabpagewinnr", 1, 2, f_tabpagewinnr}, {"tagfiles", 0, 0, f_tagfiles}, {"taglist", 1, 1, f_taglist}, {"tempname", 0, 0, f_tempname}, {"test", 1, 1, f_test}, {"tolower", 1, 1, f_tolower}, {"toupper", 1, 1, f_toupper}, {"tr", 3, 3, f_tr}, {"type", 1, 1, f_type}, {"values", 1, 1, f_values}, {"virtcol", 1, 1, f_virtcol}, {"visualmode", 0, 1, f_visualmode}, {"winbufnr", 1, 1, f_winbufnr}, {"wincol", 0, 0, f_wincol}, {"winheight", 1, 1, f_winheight}, {"winline", 0, 0, f_winline}, {"winnr", 0, 1, f_winnr}, {"winrestcmd", 0, 0, f_winrestcmd}, {"winrestview", 1, 1, f_winrestview}, {"winsaveview", 0, 0, f_winsaveview}, {"winwidth", 1, 1, f_winwidth}, {"writefile", 2, 3, f_writefile}, }; #if defined(FEAT_CMDL_COMPL) || defined(PROTO) /* * Function given to ExpandGeneric() to obtain the list of internal * or user defined function names. */ char_u * get_function_name(xp, idx) expand_T *xp; int idx; { static int intidx = -1; char_u *name; if (idx == 0) intidx = -1; if (intidx < 0) { name = get_user_func_name(xp, idx); if (name != NULL) return name; } if (++intidx < (int)(sizeof(functions) / sizeof(struct fst))) { STRCPY(IObuff, functions[intidx].f_name); STRCAT(IObuff, "("); if (functions[intidx].f_max_argc == 0) STRCAT(IObuff, ")"); return IObuff; } return NULL; } /* * Function given to ExpandGeneric() to obtain the list of internal or * user defined variable or function names. */ /*ARGSUSED*/ char_u * get_expr_name(xp, idx) expand_T *xp; int idx; { static int intidx = -1; char_u *name; if (idx == 0) intidx = -1; if (intidx < 0) { name = get_function_name(xp, idx); if (name != NULL) return name; } return get_user_var_name(xp, ++intidx); } #endif /* FEAT_CMDL_COMPL */ /* * Find internal function in table above. * Return index, or -1 if not found */ static int find_internal_func(name) char_u *name; /* name of the function */ { int first = 0; int last = (int)(sizeof(functions) / sizeof(struct fst)) - 1; int cmp; int x; /* * Find the function name in the table. Binary search. */ while (first <= last) { x = first + ((unsigned)(last - first) >> 1); cmp = STRCMP(name, functions[x].f_name); if (cmp < 0) last = x - 1; else if (cmp > 0) first = x + 1; else return x; } return -1; } /* * Check if "name" is a variable of type VAR_FUNC. If so, return the function * name it contains, otherwise return "name". */ static char_u * deref_func_name(name, lenp) char_u *name; int *lenp; { dictitem_T *v; int cc; cc = name[*lenp]; name[*lenp] = NUL; v = find_var(name, NULL); name[*lenp] = cc; if (v != NULL && v->di_tv.v_type == VAR_FUNC) { if (v->di_tv.vval.v_string == NULL) { *lenp = 0; return (char_u *)""; /* just in case */ } *lenp = (int)STRLEN(v->di_tv.vval.v_string); return v->di_tv.vval.v_string; } return name; } /* * Allocate a variable for the result of a function. * Return OK or FAIL. */ static int get_func_tv(name, len, rettv, arg, firstline, lastline, doesrange, evaluate, selfdict) char_u *name; /* name of the function */ int len; /* length of "name" */ typval_T *rettv; char_u **arg; /* argument, pointing to the '(' */ linenr_T firstline; /* first line of range */ linenr_T lastline; /* last line of range */ int *doesrange; /* return: function handled range */ int evaluate; dict_T *selfdict; /* Dictionary for "self" */ { char_u *argp; int ret = OK; typval_T argvars[MAX_FUNC_ARGS + 1]; /* vars for arguments */ int argcount = 0; /* number of arguments found */ /* * Get the arguments. */ argp = *arg; while (argcount < MAX_FUNC_ARGS) { argp = skipwhite(argp + 1); /* skip the '(' or ',' */ if (*argp == ')' || *argp == ',' || *argp == NUL) break; if (eval1(&argp, &argvars[argcount], evaluate) == FAIL) { ret = FAIL; break; } ++argcount; if (*argp != ',') break; } if (*argp == ')') ++argp; else ret = FAIL; if (ret == OK) ret = call_func(name, len, rettv, argcount, argvars, firstline, lastline, doesrange, evaluate, selfdict); else if (!aborting()) { if (argcount == MAX_FUNC_ARGS) emsg_funcname("E740: Too many arguments for function %s", name); else emsg_funcname("E116: Invalid arguments for function %s", name); } while (--argcount >= 0) clear_tv(&argvars[argcount]); *arg = skipwhite(argp); return ret; } /* * Call a function with its resolved parameters * Return OK when the function can't be called, FAIL otherwise. * Also returns OK when an error was encountered while executing the function. */ static int call_func(name, len, rettv, argcount, argvars, firstline, lastline, doesrange, evaluate, selfdict) char_u *name; /* name of the function */ int len; /* length of "name" */ typval_T *rettv; /* return value goes here */ int argcount; /* number of "argvars" */ typval_T *argvars; /* vars for arguments, must have "argcount" PLUS ONE elements! */ linenr_T firstline; /* first line of range */ linenr_T lastline; /* last line of range */ int *doesrange; /* return: function handled range */ int evaluate; dict_T *selfdict; /* Dictionary for "self" */ { int ret = FAIL; #define ERROR_UNKNOWN 0 #define ERROR_TOOMANY 1 #define ERROR_TOOFEW 2 #define ERROR_SCRIPT 3 #define ERROR_DICT 4 #define ERROR_NONE 5 #define ERROR_OTHER 6 int error = ERROR_NONE; int i; int llen; ufunc_T *fp; int cc; #define FLEN_FIXED 40 char_u fname_buf[FLEN_FIXED + 1]; char_u *fname; /* * In a script change <SID>name() and s:name() to K_SNR 123_name(). * Change <SNR>123_name() to K_SNR 123_name(). * Use fname_buf[] when it fits, otherwise allocate memory (slow). */ cc = name[len]; name[len] = NUL; llen = eval_fname_script(name); if (llen > 0) { fname_buf[0] = K_SPECIAL; fname_buf[1] = KS_EXTRA; fname_buf[2] = (int)KE_SNR; i = 3; if (eval_fname_sid(name)) /* "<SID>" or "s:" */ { if (current_SID <= 0) error = ERROR_SCRIPT; else { sprintf((char *)fname_buf + 3, "%ld_", (long)current_SID); i = (int)STRLEN(fname_buf); } } if (i + STRLEN(name + llen) < FLEN_FIXED) { STRCPY(fname_buf + i, name + llen); fname = fname_buf; } else { fname = alloc((unsigned)(i + STRLEN(name + llen) + 1)); if (fname == NULL) error = ERROR_OTHER; else { mch_memmove(fname, fname_buf, (size_t)i); STRCPY(fname + i, name + llen); } } } else fname = name; *doesrange = FALSE; /* execute the function if no errors detected and executing */ if (evaluate && error == ERROR_NONE) { rettv->v_type = VAR_NUMBER; /* default is number rettv */ error = ERROR_UNKNOWN; if (!builtin_function(fname)) { /* * User defined function. */ fp = find_func(fname); #ifdef FEAT_AUTOCMD /* Trigger FuncUndefined event, may load the function. */ if (fp == NULL && apply_autocmds(EVENT_FUNCUNDEFINED, fname, fname, TRUE, NULL) && !aborting()) { /* executed an autocommand, search for the function again */ fp = find_func(fname); } #endif /* Try loading a package. */ if (fp == NULL && script_autoload(fname, TRUE) && !aborting()) { /* loaded a package, search for the function again */ fp = find_func(fname); } if (fp != NULL) { if (fp->uf_flags & FC_RANGE) *doesrange = TRUE; if (argcount < fp->uf_args.ga_len) error = ERROR_TOOFEW; else if (!fp->uf_varargs && argcount > fp->uf_args.ga_len) error = ERROR_TOOMANY; else if ((fp->uf_flags & FC_DICT) && selfdict == NULL) error = ERROR_DICT; else { /* * Call the user function. * Save and restore search patterns, script variables and * redo buffer. */ save_search_patterns(); saveRedobuff(); ++fp->uf_calls; call_user_func(fp, argcount, argvars, rettv, firstline, lastline, (fp->uf_flags & FC_DICT) ? selfdict : NULL); if (--fp->uf_calls <= 0 && isdigit(*fp->uf_name) && fp->uf_refcount <= 0) /* Function was unreferenced while being used, free it * now. */ func_free(fp); restoreRedobuff(); restore_search_patterns(); error = ERROR_NONE; } } } else { /* * Find the function name in the table, call its implementation. */ i = find_internal_func(fname); if (i >= 0) { if (argcount < functions[i].f_min_argc) error = ERROR_TOOFEW; else if (argcount > functions[i].f_max_argc) error = ERROR_TOOMANY; else { argvars[argcount].v_type = VAR_UNKNOWN; functions[i].f_func(argvars, rettv); error = ERROR_NONE; } } } /* * The function call (or "FuncUndefined" autocommand sequence) might * have been aborted by an error, an interrupt, or an explicitly thrown * exception that has not been caught so far. This situation can be * tested for by calling aborting(). For an error in an internal * function or for the "E132" error in call_user_func(), however, the * throw point at which the "force_abort" flag (temporarily reset by * emsg()) is normally updated has not been reached yet. We need to * update that flag first to make aborting() reliable. */ update_force_abort(); } if (error == ERROR_NONE) ret = OK; /* * Report an error unless the argument evaluation or function call has been * cancelled due to an aborting error, an interrupt, or an exception. */ if (!aborting()) { switch (error) { case ERROR_UNKNOWN: emsg_funcname(N_("E117: Unknown function: %s"), name); break; case ERROR_TOOMANY: emsg_funcname(e_toomanyarg, name); break; case ERROR_TOOFEW: emsg_funcname(N_("E119: Not enough arguments for function: %s"), name); break; case ERROR_SCRIPT: emsg_funcname(N_("E120: Using <SID> not in a script context: %s"), name); break; case ERROR_DICT: emsg_funcname(N_("E725: Calling dict function without Dictionary: %s"), name); break; } } name[len] = cc; if (fname != name && fname != fname_buf) vim_free(fname); return ret; } /* * Give an error message with a function name. Handle <SNR> things. */ static void emsg_funcname(ermsg, name) char *ermsg; char_u *name; { char_u *p; if (*name == K_SPECIAL) p = concat_str((char_u *)"<SNR>", name + 3); else p = name; EMSG2(_(ermsg), p); if (p != name) vim_free(p); } /********************************************* * Implementation of the built-in functions */ /* * "add(list, item)" function */ static void f_add(argvars, rettv) typval_T *argvars; typval_T *rettv; { list_T *l; rettv->vval.v_number = 1; /* Default: Failed */ if (argvars[0].v_type == VAR_LIST) { if ((l = argvars[0].vval.v_list) != NULL && !tv_check_lock(l->lv_lock, (char_u *)"add()") && list_append_tv(l, &argvars[1]) == OK) copy_tv(&argvars[0], rettv); } else EMSG(_(e_listreq)); } /* * "append(lnum, string/list)" function */ static void f_append(argvars, rettv) typval_T *argvars; typval_T *rettv; { long lnum; char_u *line; list_T *l = NULL; listitem_T *li = NULL; typval_T *tv; long added = 0; lnum = get_tv_lnum(argvars); if (lnum >= 0 && lnum <= curbuf->b_ml.ml_line_count && u_save(lnum, lnum + 1) == OK) { if (argvars[1].v_type == VAR_LIST) { l = argvars[1].vval.v_list; if (l == NULL) return; li = l->lv_first; } rettv->vval.v_number = 0; /* Default: Success */ for (;;) { if (l == NULL) tv = &argvars[1]; /* append a string */ else if (li == NULL) break; /* end of list */ else tv = &li->li_tv; /* append item from list */ line = get_tv_string_chk(tv); if (line == NULL) /* type error */ { rettv->vval.v_number = 1; /* Failed */ break; } ml_append(lnum + added, line, (colnr_T)0, FALSE); ++added; if (l == NULL) break; li = li->li_next; } appended_lines_mark(lnum, added); if (curwin->w_cursor.lnum > lnum) curwin->w_cursor.lnum += added; } else rettv->vval.v_number = 1; /* Failed */ } /* * "argc()" function */ /* ARGSUSED */ static void f_argc(argvars, rettv) typval_T *argvars; typval_T *rettv; { rettv->vval.v_number = ARGCOUNT; } /* * "argidx()" function */ /* ARGSUSED */ static void f_argidx(argvars, rettv) typval_T *argvars; typval_T *rettv; { rettv->vval.v_number = curwin->w_arg_idx; } /* * "argv(nr)" function */ static void f_argv(argvars, rettv) typval_T *argvars; typval_T *rettv; { int idx; if (argvars[0].v_type != VAR_UNKNOWN) { idx = get_tv_number_chk(&argvars[0], NULL); if (idx >= 0 && idx < ARGCOUNT) rettv->vval.v_string = vim_strsave(alist_name(&ARGLIST[idx])); else rettv->vval.v_string = NULL; rettv->v_type = VAR_STRING; } else if (rettv_list_alloc(rettv) == OK) for (idx = 0; idx < ARGCOUNT; ++idx) list_append_string(rettv->vval.v_list, alist_name(&ARGLIST[idx]), -1); } /* * "browse(save, title, initdir, default)" function */ /* ARGSUSED */ static void f_browse(argvars, rettv) typval_T *argvars; typval_T *rettv; { #ifdef FEAT_BROWSE int save; char_u *title; char_u *initdir; char_u *defname; char_u buf[NUMBUFLEN]; char_u buf2[NUMBUFLEN]; int error = FALSE; save = get_tv_number_chk(&argvars[0], &error); title = get_tv_string_chk(&argvars[1]); initdir = get_tv_string_buf_chk(&argvars[2], buf); defname = get_tv_string_buf_chk(&argvars[3], buf2); if (error || title == NULL || initdir == NULL || defname == NULL) rettv->vval.v_string = NULL; else rettv->vval.v_string = do_browse(save ? BROWSE_SAVE : 0, title, defname, NULL, initdir, NULL, curbuf); #else rettv->vval.v_string = NULL; #endif rettv->v_type = VAR_STRING; } /* * "browsedir(title, initdir)" function */ /* ARGSUSED */ static void f_browsedir(argvars, rettv) typval_T *argvars; typval_T *rettv; { #ifdef FEAT_BROWSE char_u *title; char_u *initdir; char_u buf[NUMBUFLEN]; title = get_tv_string_chk(&argvars[0]); initdir = get_tv_string_buf_chk(&argvars[1], buf); if (title == NULL || initdir == NULL) rettv->vval.v_string = NULL; else rettv->vval.v_string = do_browse(BROWSE_DIR, title, NULL, NULL, initdir, NULL, curbuf); #else rettv->vval.v_string = NULL; #endif rettv->v_type = VAR_STRING; } static buf_T *find_buffer __ARGS((typval_T *avar)); /* * Find a buffer by number or exact name. */ static buf_T * find_buffer(avar) typval_T *avar; { buf_T *buf = NULL; if (avar->v_type == VAR_NUMBER) buf = buflist_findnr((int)avar->vval.v_number); else if (avar->v_type == VAR_STRING && avar->vval.v_string != NULL) { buf = buflist_findname_exp(avar->vval.v_string); if (buf == NULL) { /* No full path name match, try a match with a URL or a "nofile" * buffer, these don't use the full path. */ for (buf = firstbuf; buf != NULL; buf = buf->b_next) if (buf->b_fname != NULL && (path_with_url(buf->b_fname) #ifdef FEAT_QUICKFIX || bt_nofile(buf) #endif ) && STRCMP(buf->b_fname, avar->vval.v_string) == 0) break; } } return buf; } /* * "bufexists(expr)" function */ static void f_bufexists(argvars, rettv) typval_T *argvars; typval_T *rettv; { rettv->vval.v_number = (find_buffer(&argvars[0]) != NULL); } /* * "buflisted(expr)" function */ static void f_buflisted(argvars, rettv) typval_T *argvars; typval_T *rettv; { buf_T *buf; buf = find_buffer(&argvars[0]); rettv->vval.v_number = (buf != NULL && buf->b_p_bl); } /* * "bufloaded(expr)" function */ static void f_bufloaded(argvars, rettv) typval_T *argvars; typval_T *rettv; { buf_T *buf; buf = find_buffer(&argvars[0]); rettv->vval.v_number = (buf != NULL && buf->b_ml.ml_mfp != NULL); } static buf_T *get_buf_tv __ARGS((typval_T *tv)); /* * Get buffer by number or pattern. */ static buf_T * get_buf_tv(tv) typval_T *tv; { char_u *name = tv->vval.v_string; int save_magic; char_u *save_cpo; buf_T *buf; if (tv->v_type == VAR_NUMBER) return buflist_findnr((int)tv->vval.v_number); if (tv->v_type != VAR_STRING) return NULL; if (name == NULL || *name == NUL) return curbuf; if (name[0] == '$' && name[1] == NUL) return lastbuf; /* Ignore 'magic' and 'cpoptions' here to make scripts portable */ save_magic = p_magic; p_magic = TRUE; save_cpo = p_cpo; p_cpo = (char_u *)""; buf = buflist_findnr(buflist_findpat(name, name + STRLEN(name), TRUE, FALSE)); p_magic = save_magic; p_cpo = save_cpo; /* If not found, try expanding the name, like done for bufexists(). */ if (buf == NULL) buf = find_buffer(tv); return buf; } /* * "bufname(expr)" function */ static void f_bufname(argvars, rettv) typval_T *argvars; typval_T *rettv; { buf_T *buf; (void)get_tv_number(&argvars[0]); /* issue errmsg if type error */ ++emsg_off; buf = get_buf_tv(&argvars[0]); rettv->v_type = VAR_STRING; if (buf != NULL && buf->b_fname != NULL) rettv->vval.v_string = vim_strsave(buf->b_fname); else rettv->vval.v_string = NULL; --emsg_off; } /* * "bufnr(expr)" function */ static void f_bufnr(argvars, rettv) typval_T *argvars; typval_T *rettv; { buf_T *buf; int error = FALSE; char_u *name; (void)get_tv_number(&argvars[0]); /* issue errmsg if type error */ ++emsg_off; buf = get_buf_tv(&argvars[0]); --emsg_off; /* If the buffer isn't found and the second argument is not zero create a * new buffer. */ if (buf == NULL && argvars[1].v_type != VAR_UNKNOWN && get_tv_number_chk(&argvars[1], &error) != 0 && !error && (name = get_tv_string_chk(&argvars[0])) != NULL && !error) buf = buflist_new(name, NULL, (linenr_T)1, 0); if (buf != NULL) rettv->vval.v_number = buf->b_fnum; else rettv->vval.v_number = -1; } /* * "bufwinnr(nr)" function */ static void f_bufwinnr(argvars, rettv) typval_T *argvars; typval_T *rettv; { #ifdef FEAT_WINDOWS win_T *wp; int winnr = 0; #endif buf_T *buf; (void)get_tv_number(&argvars[0]); /* issue errmsg if type error */ ++emsg_off; buf = get_buf_tv(&argvars[0]); #ifdef FEAT_WINDOWS for (wp = firstwin; wp; wp = wp->w_next) { ++winnr; if (wp->w_buffer == buf) break; } rettv->vval.v_number = (wp != NULL ? winnr : -1); #else rettv->vval.v_number = (curwin->w_buffer == buf ? 1 : -1); #endif --emsg_off; } /* * "byte2line(byte)" function */ /*ARGSUSED*/ static void f_byte2line(argvars, rettv) typval_T *argvars; typval_T *rettv; { #ifndef FEAT_BYTEOFF rettv->vval.v_number = -1; #else long boff = 0; boff = get_tv_number(&argvars[0]) - 1; /* boff gets -1 on type error */ if (boff < 0) rettv->vval.v_number = -1; else rettv->vval.v_number = ml_find_line_or_offset(curbuf, (linenr_T)0, &boff); #endif } /* * "byteidx()" function */ /*ARGSUSED*/ static void f_byteidx(argvars, rettv) typval_T *argvars; typval_T *rettv; { #ifdef FEAT_MBYTE char_u *t; #endif char_u *str; long idx; str = get_tv_string_chk(&argvars[0]); idx = get_tv_number_chk(&argvars[1], NULL); rettv->vval.v_number = -1; if (str == NULL || idx < 0) return; #ifdef FEAT_MBYTE t = str; for ( ; idx > 0; idx--) { if (*t == NUL) /* EOL reached */ return; t += (*mb_ptr2len)(t); } rettv->vval.v_number = (varnumber_T)(t - str); #else if (idx <= STRLEN(str)) rettv->vval.v_number = idx; #endif } /* * "call(func, arglist)" function */ static void f_call(argvars, rettv) typval_T *argvars; typval_T *rettv; { char_u *func; typval_T argv[MAX_FUNC_ARGS + 1]; int argc = 0; listitem_T *item; int dummy; dict_T *selfdict = NULL; rettv->vval.v_number = 0; if (argvars[1].v_type != VAR_LIST) { EMSG(_(e_listreq)); return; } if (argvars[1].vval.v_list == NULL) return; if (argvars[0].v_type == VAR_FUNC) func = argvars[0].vval.v_string; else func = get_tv_string(&argvars[0]); if (*func == NUL) return; /* type error or empty name */ if (argvars[2].v_type != VAR_UNKNOWN) { if (argvars[2].v_type != VAR_DICT) { EMSG(_(e_dictreq)); return; } selfdict = argvars[2].vval.v_dict; } for (item = argvars[1].vval.v_list->lv_first; item != NULL; item = item->li_next) { if (argc == MAX_FUNC_ARGS) { EMSG(_("E699: Too many arguments")); break; } /* Make a copy of each argument. This is needed to be able to set * v_lock to VAR_FIXED in the copy without changing the original list. */ copy_tv(&item->li_tv, &argv[argc++]); } if (item == NULL) (void)call_func(func, (int)STRLEN(func), rettv, argc, argv, curwin->w_cursor.lnum, curwin->w_cursor.lnum, &dummy, TRUE, selfdict); /* Free the arguments. */ while (argc > 0) clear_tv(&argv[--argc]); } /* * "changenr()" function */ /*ARGSUSED*/ static void f_changenr(argvars, rettv) typval_T *argvars; typval_T *rettv; { rettv->vval.v_number = curbuf->b_u_seq_cur; } /* * "char2nr(string)" function */ static void f_char2nr(argvars, rettv) typval_T *argvars; typval_T *rettv; { #ifdef FEAT_MBYTE if (has_mbyte) rettv->vval.v_number = (*mb_ptr2char)(get_tv_string(&argvars[0])); else #endif rettv->vval.v_number = get_tv_string(&argvars[0])[0]; } /* * "cindent(lnum)" function */ static void f_cindent(argvars, rettv) typval_T *argvars; typval_T *rettv; { #ifdef FEAT_CINDENT pos_T pos; linenr_T lnum; pos = curwin->w_cursor; lnum = get_tv_lnum(argvars); if (lnum >= 1 && lnum <= curbuf->b_ml.ml_line_count) { curwin->w_cursor.lnum = lnum; rettv->vval.v_number = get_c_indent(); curwin->w_cursor = pos; } else #endif rettv->vval.v_number = -1; } /* * "col(string)" function */ static void f_col(argvars, rettv) typval_T *argvars; typval_T *rettv; { colnr_T col = 0; pos_T *fp; int fnum = curbuf->b_fnum; fp = var2fpos(&argvars[0], FALSE, &fnum); if (fp != NULL && fnum == curbuf->b_fnum) { if (fp->col == MAXCOL) { /* '> can be MAXCOL, get the length of the line then */ if (fp->lnum <= curbuf->b_ml.ml_line_count) col = (colnr_T)STRLEN(ml_get(fp->lnum)) + 1; else col = MAXCOL; } else { col = fp->col + 1; #ifdef FEAT_VIRTUALEDIT /* col(".") when the cursor is on the NUL at the end of the line * because of "coladd" can be seen as an extra column. */ if (virtual_active() && fp == &curwin->w_cursor) { char_u *p = ml_get_cursor(); if (curwin->w_cursor.coladd >= (colnr_T)chartabsize(p, curwin->w_virtcol - curwin->w_cursor.coladd)) { # ifdef FEAT_MBYTE int l; if (*p != NUL && p[(l = (*mb_ptr2len)(p))] == NUL) col += l; # else if (*p != NUL && p[1] == NUL) ++col; # endif } } #endif } } rettv->vval.v_number = col; } #if defined(FEAT_INS_EXPAND) /* * "complete()" function */ /*ARGSUSED*/ static void f_complete(argvars, rettv) typval_T *argvars; typval_T *rettv; { int startcol; if ((State & INSERT) == 0) { EMSG(_("E785: complete() can only be used in Insert mode")); return; } /* Check for undo allowed here, because if something was already inserted * the line was already saved for undo and this check isn't done. */ if (!undo_allowed()) return; if (argvars[1].v_type != VAR_LIST || argvars[1].vval.v_list == NULL) { EMSG(_(e_invarg)); return; } startcol = get_tv_number_chk(&argvars[0], NULL); if (startcol <= 0) return; set_completion(startcol - 1, argvars[1].vval.v_list); } /* * "complete_add()" function */ /*ARGSUSED*/ static void f_complete_add(argvars, rettv) typval_T *argvars; typval_T *rettv; { rettv->vval.v_number = ins_compl_add_tv(&argvars[0], 0); } /* * "complete_check()" function */ /*ARGSUSED*/ static void f_complete_check(argvars, rettv) typval_T *argvars; typval_T *rettv; { int saved = RedrawingDisabled; RedrawingDisabled = 0; ins_compl_check_keys(0); rettv->vval.v_number = compl_interrupted; RedrawingDisabled = saved; } #endif /* * "confirm(message, buttons[, default [, type]])" function */ /*ARGSUSED*/ static void f_confirm(argvars, rettv) typval_T *argvars; typval_T *rettv; { #if defined(FEAT_GUI_DIALOG) || defined(FEAT_CON_DIALOG) char_u *message; char_u *buttons = NULL; char_u buf[NUMBUFLEN]; char_u buf2[NUMBUFLEN]; int def = 1; int type = VIM_GENERIC; char_u *typestr0; int error = FALSE; message = get_tv_string_chk(&argvars[0]); if (message == NULL) error = TRUE; if (argvars[1].v_type != VAR_UNKNOWN) { buttons = get_tv_string_buf_chk(&argvars[1], buf); if (buttons == NULL) error = TRUE; if (argvars[2].v_type != VAR_UNKNOWN) { def = get_tv_number_chk(&argvars[2], &error); if (argvars[3].v_type != VAR_UNKNOWN) { typestr0 = get_tv_string_buf_chk(&argvars[3], buf2); if (typestr0 == NULL) error = TRUE; else { switch (TOUPPER_ASC(*typestr0)) { case 'E': type = VIM_ERROR; break; case 'Q': type = VIM_QUESTION; break; case 'I': type = VIM_INFO; break; case 'W': type = VIM_WARNING; break; case 'G': type = VIM_GENERIC; break; } } } } } if (buttons == NULL || *buttons == NUL) buttons = (char_u *)_("&Ok"); if (error) rettv->vval.v_number = 0; else rettv->vval.v_number = do_dialog(type, NULL, message, buttons, def, NULL); #else rettv->vval.v_number = 0; #endif } /* * "copy()" function */ static void f_copy(argvars, rettv) typval_T *argvars; typval_T *rettv; { item_copy(&argvars[0], rettv, FALSE, 0); } /* * "count()" function */ static void f_count(argvars, rettv) typval_T *argvars; typval_T *rettv; { long n = 0; int ic = FALSE; if (argvars[0].v_type == VAR_LIST) { listitem_T *li; list_T *l; long idx; if ((l = argvars[0].vval.v_list) != NULL) { li = l->lv_first; if (argvars[2].v_type != VAR_UNKNOWN) { int error = FALSE; ic = get_tv_number_chk(&argvars[2], &error); if (argvars[3].v_type != VAR_UNKNOWN) { idx = get_tv_number_chk(&argvars[3], &error); if (!error) { li = list_find(l, idx); if (li == NULL) EMSGN(_(e_listidx), idx); } } if (error) li = NULL; } for ( ; li != NULL; li = li->li_next) if (tv_equal(&li->li_tv, &argvars[1], ic)) ++n; } } else if (argvars[0].v_type == VAR_DICT) { int todo; dict_T *d; hashitem_T *hi; if ((d = argvars[0].vval.v_dict) != NULL) { int error = FALSE; if (argvars[2].v_type != VAR_UNKNOWN) { ic = get_tv_number_chk(&argvars[2], &error); if (argvars[3].v_type != VAR_UNKNOWN) EMSG(_(e_invarg)); } todo = error ? 0 : (int)d->dv_hashtab.ht_used; for (hi = d->dv_hashtab.ht_array; todo > 0; ++hi) { if (!HASHITEM_EMPTY(hi)) { --todo; if (tv_equal(&HI2DI(hi)->di_tv, &argvars[1], ic)) ++n; } } } } else EMSG2(_(e_listdictarg), "count()"); rettv->vval.v_number = n; } /* * "cscope_connection([{num} , {dbpath} [, {prepend}]])" function * * Checks the existence of a cscope connection. */ /*ARGSUSED*/ static void f_cscope_connection(argvars, rettv) typval_T *argvars; typval_T *rettv; { #ifdef FEAT_CSCOPE int num = 0; char_u *dbpath = NULL; char_u *prepend = NULL; char_u buf[NUMBUFLEN]; if (argvars[0].v_type != VAR_UNKNOWN && argvars[1].v_type != VAR_UNKNOWN) { num = (int)get_tv_number(&argvars[0]); dbpath = get_tv_string(&argvars[1]); if (argvars[2].v_type != VAR_UNKNOWN) prepend = get_tv_string_buf(&argvars[2], buf); } rettv->vval.v_number = cs_connection(num, dbpath, prepend); #else rettv->vval.v_number = 0; #endif } /* * "cursor(lnum, col)" function * * Moves the cursor to the specified line and column */ /*ARGSUSED*/ static void f_cursor(argvars, rettv) typval_T *argvars; typval_T *rettv; { long line, col; #ifdef FEAT_VIRTUALEDIT long coladd = 0; #endif if (argvars[1].v_type == VAR_UNKNOWN) { pos_T pos; if (list2fpos(argvars, &pos, NULL) == FAIL) return; line = pos.lnum; col = pos.col; #ifdef FEAT_VIRTUALEDIT coladd = pos.coladd; #endif } else { line = get_tv_lnum(argvars); col = get_tv_number_chk(&argvars[1], NULL); #ifdef FEAT_VIRTUALEDIT if (argvars[2].v_type != VAR_UNKNOWN) coladd = get_tv_number_chk(&argvars[2], NULL); #endif } if (line < 0 || col < 0 #ifdef FEAT_VIRTUALEDIT || coladd < 0 #endif ) return; /* type error; errmsg already given */ if (line > 0) curwin->w_cursor.lnum = line; if (col > 0) curwin->w_cursor.col = col - 1; #ifdef FEAT_VIRTUALEDIT curwin->w_cursor.coladd = coladd; #endif /* Make sure the cursor is in a valid position. */ check_cursor(); #ifdef FEAT_MBYTE /* Correct cursor for multi-byte character. */ if (has_mbyte) mb_adjust_cursor(); #endif curwin->w_set_curswant = TRUE; } /* * "deepcopy()" function */ static void f_deepcopy(argvars, rettv) typval_T *argvars; typval_T *rettv; { int noref = 0; if (argvars[1].v_type != VAR_UNKNOWN) noref = get_tv_number_chk(&argvars[1], NULL); if (noref < 0 || noref > 1) EMSG(_(e_invarg)); else item_copy(&argvars[0], rettv, TRUE, noref == 0 ? ++current_copyID : 0); } /* * "delete()" function */ static void f_delete(argvars, rettv) typval_T *argvars; typval_T *rettv; { if (check_restricted() || check_secure()) rettv->vval.v_number = -1; else rettv->vval.v_number = mch_remove(get_tv_string(&argvars[0])); } /* * "did_filetype()" function */ /*ARGSUSED*/ static void f_did_filetype(argvars, rettv) typval_T *argvars; typval_T *rettv; { #ifdef FEAT_AUTOCMD rettv->vval.v_number = did_filetype; #else rettv->vval.v_number = 0; #endif } /* * "diff_filler()" function */ /*ARGSUSED*/ static void f_diff_filler(argvars, rettv) typval_T *argvars; typval_T *rettv; { #ifdef FEAT_DIFF rettv->vval.v_number = diff_check_fill(curwin, get_tv_lnum(argvars)); #endif } /* * "diff_hlID()" function */ /*ARGSUSED*/ static void f_diff_hlID(argvars, rettv) typval_T *argvars; typval_T *rettv; { #ifdef FEAT_DIFF linenr_T lnum = get_tv_lnum(argvars); static linenr_T prev_lnum = 0; static int changedtick = 0; static int fnum = 0; static int change_start = 0; static int change_end = 0; static hlf_T hlID = 0; int filler_lines; int col; if (lnum < 0) /* ignore type error in {lnum} arg */ lnum = 0; if (lnum != prev_lnum || changedtick != curbuf->b_changedtick || fnum != curbuf->b_fnum) { /* New line, buffer, change: need to get the values. */ filler_lines = diff_check(curwin, lnum); if (filler_lines < 0) { if (filler_lines == -1) { change_start = MAXCOL; change_end = -1; if (diff_find_change(curwin, lnum, &change_start, &change_end)) hlID = HLF_ADD; /* added line */ else hlID = HLF_CHD; /* changed line */ } else hlID = HLF_ADD; /* added line */ } else hlID = (hlf_T)0; prev_lnum = lnum; changedtick = curbuf->b_changedtick; fnum = curbuf->b_fnum; } if (hlID == HLF_CHD || hlID == HLF_TXD) { col = get_tv_number(&argvars[1]) - 1; /* ignore type error in {col} */ if (col >= change_start && col <= change_end) hlID = HLF_TXD; /* changed text */ else hlID = HLF_CHD; /* changed line */ } rettv->vval.v_number = hlID == (hlf_T)0 ? 0 : (int)hlID; #endif } /* * "empty({expr})" function */ static void f_empty(argvars, rettv) typval_T *argvars; typval_T *rettv; { int n; switch (argvars[0].v_type) { case VAR_STRING: case VAR_FUNC: n = argvars[0].vval.v_string == NULL || *argvars[0].vval.v_string == NUL; break; case VAR_NUMBER: n = argvars[0].vval.v_number == 0; break; case VAR_LIST: n = argvars[0].vval.v_list == NULL || argvars[0].vval.v_list->lv_first == NULL; break; case VAR_DICT: n = argvars[0].vval.v_dict == NULL || argvars[0].vval.v_dict->dv_hashtab.ht_used == 0; break; default: EMSG2(_(e_intern2), "f_empty()"); n = 0; } rettv->vval.v_number = n; } /* * "escape({string}, {chars})" function */ static void f_escape(argvars, rettv) typval_T *argvars; typval_T *rettv; { char_u buf[NUMBUFLEN]; rettv->vval.v_string = vim_strsave_escaped(get_tv_string(&argvars[0]), get_tv_string_buf(&argvars[1], buf)); rettv->v_type = VAR_STRING; } /* * "eval()" function */ /*ARGSUSED*/ static void f_eval(argvars, rettv) typval_T *argvars; typval_T *rettv; { char_u *s; s = get_tv_string_chk(&argvars[0]); if (s != NULL) s = skipwhite(s); if (s == NULL || eval1(&s, rettv, TRUE) == FAIL) { rettv->v_type = VAR_NUMBER; rettv->vval.v_number = 0; } else if (*s != NUL) EMSG(_(e_trailing)); } /* * "eventhandler()" function */ /*ARGSUSED*/ static void f_eventhandler(argvars, rettv) typval_T *argvars; typval_T *rettv; { rettv->vval.v_number = vgetc_busy; } /* * "executable()" function */ static void f_executable(argvars, rettv) typval_T *argvars; typval_T *rettv; { rettv->vval.v_number = mch_can_exe(get_tv_string(&argvars[0])); } /* * "exists()" function */ static void f_exists(argvars, rettv) typval_T *argvars; typval_T *rettv; { char_u *p; char_u *name; int n = FALSE; int len = 0; p = get_tv_string(&argvars[0]); if (*p == '$') /* environment variable */ { /* first try "normal" environment variables (fast) */ if (mch_getenv(p + 1) != NULL) n = TRUE; else { /* try expanding things like $VIM and ${HOME} */ p = expand_env_save(p); if (p != NULL && *p != '$') n = TRUE; vim_free(p); } } else if (*p == '&' || *p == '+') /* option */ { n = (get_option_tv(&p, NULL, TRUE) == OK); if (*skipwhite(p) != NUL) n = FALSE; /* trailing garbage */ } else if (*p == '*') /* internal or user defined function */ { n = function_exists(p + 1); } else if (*p == ':') { n = cmd_exists(p + 1); } else if (*p == '#') { #ifdef FEAT_AUTOCMD if (p[1] == '#') n = autocmd_supported(p + 2); else n = au_exists(p + 1); #endif } else /* internal variable */ { char_u *tofree; typval_T tv; /* get_name_len() takes care of expanding curly braces */ name = p; len = get_name_len(&p, &tofree, TRUE, FALSE); if (len > 0) { if (tofree != NULL) name = tofree; n = (get_var_tv(name, len, &tv, FALSE) == OK); if (n) { /* handle d.key, l[idx], f(expr) */ n = (handle_subscript(&p, &tv, TRUE, FALSE) == OK); if (n) clear_tv(&tv); } } if (*p != NUL) n = FALSE; vim_free(tofree); } rettv->vval.v_number = n; } /* * "expand()" function */ static void f_expand(argvars, rettv) typval_T *argvars; typval_T *rettv; { char_u *s; int len; char_u *errormsg; int flags = WILD_SILENT|WILD_USE_NL|WILD_LIST_NOTFOUND; expand_T xpc; int error = FALSE; rettv->v_type = VAR_STRING; s = get_tv_string(&argvars[0]); if (*s == '%' || *s == '#' || *s == '<') { ++emsg_off; rettv->vval.v_string = eval_vars(s, s, &len, NULL, &errormsg, NULL); --emsg_off; } else { /* When the optional second argument is non-zero, don't remove matches * for 'suffixes' and 'wildignore' */ if (argvars[1].v_type != VAR_UNKNOWN && get_tv_number_chk(&argvars[1], &error)) flags |= WILD_KEEP_ALL; if (!error) { ExpandInit(&xpc); xpc.xp_context = EXPAND_FILES; rettv->vval.v_string = ExpandOne(&xpc, s, NULL, flags, WILD_ALL); } else rettv->vval.v_string = NULL; } } /* * "extend(list, list [, idx])" function * "extend(dict, dict [, action])" function */ static void f_extend(argvars, rettv) typval_T *argvars; typval_T *rettv; { rettv->vval.v_number = 0; if (argvars[0].v_type == VAR_LIST && argvars[1].v_type == VAR_LIST) { list_T *l1, *l2; listitem_T *item; long before; int error = FALSE; l1 = argvars[0].vval.v_list; l2 = argvars[1].vval.v_list; if (l1 != NULL && !tv_check_lock(l1->lv_lock, (char_u *)"extend()") && l2 != NULL) { if (argvars[2].v_type != VAR_UNKNOWN) { before = get_tv_number_chk(&argvars[2], &error); if (error) return; /* type error; errmsg already given */ if (before == l1->lv_len) item = NULL; else { item = list_find(l1, before); if (item == NULL) { EMSGN(_(e_listidx), before); return; } } } else item = NULL; list_extend(l1, l2, item); copy_tv(&argvars[0], rettv); } } else if (argvars[0].v_type == VAR_DICT && argvars[1].v_type == VAR_DICT) { dict_T *d1, *d2; dictitem_T *di1; char_u *action; int i; hashitem_T *hi2; int todo; d1 = argvars[0].vval.v_dict; d2 = argvars[1].vval.v_dict; if (d1 != NULL && !tv_check_lock(d1->dv_lock, (char_u *)"extend()") && d2 != NULL) { /* Check the third argument. */ if (argvars[2].v_type != VAR_UNKNOWN) { static char *(av[]) = {"keep", "force", "error"}; action = get_tv_string_chk(&argvars[2]); if (action == NULL) return; /* type error; errmsg already given */ for (i = 0; i < 3; ++i) if (STRCMP(action, av[i]) == 0) break; if (i == 3) { EMSG2(_(e_invarg2), action); return; } } else action = (char_u *)"force"; /* Go over all entries in the second dict and add them to the * first dict. */ todo = (int)d2->dv_hashtab.ht_used; for (hi2 = d2->dv_hashtab.ht_array; todo > 0; ++hi2) { if (!HASHITEM_EMPTY(hi2)) { --todo; di1 = dict_find(d1, hi2->hi_key, -1); if (di1 == NULL) { di1 = dictitem_copy(HI2DI(hi2)); if (di1 != NULL && dict_add(d1, di1) == FAIL) dictitem_free(di1); } else if (*action == 'e') { EMSG2(_("E737: Key already exists: %s"), hi2->hi_key); break; } else if (*action == 'f') { clear_tv(&di1->di_tv); copy_tv(&HI2DI(hi2)->di_tv, &di1->di_tv); } } } copy_tv(&argvars[0], rettv); } } else EMSG2(_(e_listdictarg), "extend()"); } /* * "feedkeys()" function */ /*ARGSUSED*/ static void f_feedkeys(argvars, rettv) typval_T *argvars; typval_T *rettv; { int remap = TRUE; char_u *keys, *flags; char_u nbuf[NUMBUFLEN]; int typed = FALSE; char_u *keys_esc; /* This is not allowed in the sandbox. If the commands would still be * executed in the sandbox it would be OK, but it probably happens later, * when "sandbox" is no longer set. */ if (check_secure()) return; rettv->vval.v_number = 0; keys = get_tv_string(&argvars[0]); if (*keys != NUL) { if (argvars[1].v_type != VAR_UNKNOWN) { flags = get_tv_string_buf(&argvars[1], nbuf); for ( ; *flags != NUL; ++flags) { switch (*flags) { case 'n': remap = FALSE; break; case 'm': remap = TRUE; break; case 't': typed = TRUE; break; } } } /* Need to escape K_SPECIAL and CSI before putting the string in the * typeahead buffer. */ keys_esc = vim_strsave_escape_csi(keys); if (keys_esc != NULL) { ins_typebuf(keys_esc, (remap ? REMAP_YES : REMAP_NONE), typebuf.tb_len, !typed, FALSE); vim_free(keys_esc); if (vgetc_busy) typebuf_was_filled = TRUE; } } } /* * "filereadable()" function */ static void f_filereadable(argvars, rettv) typval_T *argvars; typval_T *rettv; { FILE *fd; char_u *p; int n; p = get_tv_string(&argvars[0]); if (*p && !mch_isdir(p) && (fd = mch_fopen((char *)p, "r")) != NULL) { n = TRUE; fclose(fd); } else n = FALSE; rettv->vval.v_number = n; } /* * Return 0 for not writable, 1 for writable file, 2 for a dir which we have * rights to write into. */ static void f_filewritable(argvars, rettv) typval_T *argvars; typval_T *rettv; { rettv->vval.v_number = filewritable(get_tv_string(&argvars[0])); } static void findfilendir __ARGS((typval_T *argvars, typval_T *rettv, int dir)); static void findfilendir(argvars, rettv, dir) typval_T *argvars; typval_T *rettv; int dir; { #ifdef FEAT_SEARCHPATH char_u *fname; char_u *fresult = NULL; char_u *path = *curbuf->b_p_path == NUL ? p_path : curbuf->b_p_path; char_u *p; char_u pathbuf[NUMBUFLEN]; int count = 1; int first = TRUE; int error = FALSE; #endif rettv->vval.v_string = NULL; rettv->v_type = VAR_STRING; #ifdef FEAT_SEARCHPATH fname = get_tv_string(&argvars[0]); if (argvars[1].v_type != VAR_UNKNOWN) { p = get_tv_string_buf_chk(&argvars[1], pathbuf); if (p == NULL) error = TRUE; else { if (*p != NUL) path = p; if (argvars[2].v_type != VAR_UNKNOWN) count = get_tv_number_chk(&argvars[2], &error); } } if (count < 0 && rettv_list_alloc(rettv) == FAIL) error = TRUE; if (*fname != NUL && !error) { do { if (rettv->v_type == VAR_STRING) vim_free(fresult); fresult = find_file_in_path_option(first ? fname : NULL, first ? (int)STRLEN(fname) : 0, 0, first, path, dir, curbuf->b_ffname, dir ? (char_u *)"" : curbuf->b_p_sua); first = FALSE; if (fresult != NULL && rettv->v_type == VAR_LIST) list_append_string(rettv->vval.v_list, fresult, -1); } while ((rettv->v_type == VAR_LIST || --count > 0) && fresult != NULL); } if (rettv->v_type == VAR_STRING) rettv->vval.v_string = fresult; #endif } static void filter_map __ARGS((typval_T *argvars, typval_T *rettv, int map)); static int filter_map_one __ARGS((typval_T *tv, char_u *expr, int map, int *remp)); /* * Implementation of map() and filter(). */ static void filter_map(argvars, rettv, map) typval_T *argvars; typval_T *rettv; int map; { char_u buf[NUMBUFLEN]; char_u *expr; listitem_T *li, *nli; list_T *l = NULL; dictitem_T *di; hashtab_T *ht; hashitem_T *hi; dict_T *d = NULL; typval_T save_val; typval_T save_key; int rem; int todo; char_u *ermsg = map ? (char_u *)"map()" : (char_u *)"filter()"; int save_did_emsg; rettv->vval.v_number = 0; if (argvars[0].v_type == VAR_LIST) { if ((l = argvars[0].vval.v_list) == NULL || (map && tv_check_lock(l->lv_lock, ermsg))) return; } else if (argvars[0].v_type == VAR_DICT) { if ((d = argvars[0].vval.v_dict) == NULL || (map && tv_check_lock(d->dv_lock, ermsg))) return; } else { EMSG2(_(e_listdictarg), ermsg); return; } expr = get_tv_string_buf_chk(&argvars[1], buf); /* On type errors, the preceding call has already displayed an error * message. Avoid a misleading error message for an empty string that * was not passed as argument. */ if (expr != NULL) { prepare_vimvar(VV_VAL, &save_val); expr = skipwhite(expr); /* We reset "did_emsg" to be able to detect whether an error * occurred during evaluation of the expression. */ save_did_emsg = did_emsg; did_emsg = FALSE; if (argvars[0].v_type == VAR_DICT) { prepare_vimvar(VV_KEY, &save_key); vimvars[VV_KEY].vv_type = VAR_STRING; ht = &d->dv_hashtab; hash_lock(ht); todo = (int)ht->ht_used; for (hi = ht->ht_array; todo > 0; ++hi) { if (!HASHITEM_EMPTY(hi)) { --todo; di = HI2DI(hi); if (tv_check_lock(di->di_tv.v_lock, ermsg)) break; vimvars[VV_KEY].vv_str = vim_strsave(di->di_key); if (filter_map_one(&di->di_tv, expr, map, &rem) == FAIL || did_emsg) break; if (!map && rem) dictitem_remove(d, di); clear_tv(&vimvars[VV_KEY].vv_tv); } } hash_unlock(ht); restore_vimvar(VV_KEY, &save_key); } else { for (li = l->lv_first; li != NULL; li = nli) { if (tv_check_lock(li->li_tv.v_lock, ermsg)) break; nli = li->li_next; if (filter_map_one(&li->li_tv, expr, map, &rem) == FAIL || did_emsg) break; if (!map && rem) listitem_remove(l, li); } } restore_vimvar(VV_VAL, &save_val); did_emsg |= save_did_emsg; } copy_tv(&argvars[0], rettv); } static int filter_map_one(tv, expr, map, remp) typval_T *tv; char_u *expr; int map; int *remp; { typval_T rettv; char_u *s; copy_tv(tv, &vimvars[VV_VAL].vv_tv); s = expr; if (eval1(&s, &rettv, TRUE) == FAIL) return FAIL; if (*s != NUL) /* check for trailing chars after expr */ { EMSG2(_(e_invexpr2), s); return FAIL; } if (map) { /* map(): replace the list item value */ clear_tv(tv); rettv.v_lock = 0; *tv = rettv; } else { int error = FALSE; /* filter(): when expr is zero remove the item */ *remp = (get_tv_number_chk(&rettv, &error) == 0); clear_tv(&rettv); /* On type error, nothing has been removed; return FAIL to stop the * loop. The error message was given by get_tv_number_chk(). */ if (error) return FAIL; } clear_tv(&vimvars[VV_VAL].vv_tv); return OK; } /* * "filter()" function */ static void f_filter(argvars, rettv) typval_T *argvars; typval_T *rettv; { filter_map(argvars, rettv, FALSE); } /* * "finddir({fname}[, {path}[, {count}]])" function */ static void f_finddir(argvars, rettv) typval_T *argvars; typval_T *rettv; { findfilendir(argvars, rettv, TRUE); } /* * "findfile({fname}[, {path}[, {count}]])" function */ static void f_findfile(argvars, rettv) typval_T *argvars; typval_T *rettv; { findfilendir(argvars, rettv, FALSE); } /* * "fnamemodify({fname}, {mods})" function */ static void f_fnamemodify(argvars, rettv) typval_T *argvars; typval_T *rettv; { char_u *fname; char_u *mods; int usedlen = 0; int len; char_u *fbuf = NULL; char_u buf[NUMBUFLEN]; fname = get_tv_string_chk(&argvars[0]); mods = get_tv_string_buf_chk(&argvars[1], buf); if (fname == NULL || mods == NULL) fname = NULL; else { len = (int)STRLEN(fname); (void)modify_fname(mods, &usedlen, &fname, &fbuf, &len); } rettv->v_type = VAR_STRING; if (fname == NULL) rettv->vval.v_string = NULL; else rettv->vval.v_string = vim_strnsave(fname, len); vim_free(fbuf); } static void foldclosed_both __ARGS((typval_T *argvars, typval_T *rettv, int end)); /* * "foldclosed()" function */ static void foldclosed_both(argvars, rettv, end) typval_T *argvars; typval_T *rettv; int end; { #ifdef FEAT_FOLDING linenr_T lnum; linenr_T first, last; lnum = get_tv_lnum(argvars); if (lnum >= 1 && lnum <= curbuf->b_ml.ml_line_count) { if (hasFoldingWin(curwin, lnum, &first, &last, FALSE, NULL)) { if (end) rettv->vval.v_number = (varnumber_T)last; else rettv->vval.v_number = (varnumber_T)first; return; } } #endif rettv->vval.v_number = -1; } /* * "foldclosed()" function */ static void f_foldclosed(argvars, rettv) typval_T *argvars; typval_T *rettv; { foldclosed_both(argvars, rettv, FALSE); } /* * "foldclosedend()" function */ static void f_foldclosedend(argvars, rettv) typval_T *argvars; typval_T *rettv; { foldclosed_both(argvars, rettv, TRUE); } /* * "foldlevel()" function */ static void f_foldlevel(argvars, rettv) typval_T *argvars; typval_T *rettv; { #ifdef FEAT_FOLDING linenr_T lnum; lnum = get_tv_lnum(argvars); if (lnum >= 1 && lnum <= curbuf->b_ml.ml_line_count) rettv->vval.v_number = foldLevel(lnum); else #endif rettv->vval.v_number = 0; } /* * "foldtext()" function */ /*ARGSUSED*/ static void f_foldtext(argvars, rettv) typval_T *argvars; typval_T *rettv; { #ifdef FEAT_FOLDING linenr_T lnum; char_u *s; char_u *r; int len; char *txt; #endif rettv->v_type = VAR_STRING; rettv->vval.v_string = NULL; #ifdef FEAT_FOLDING if ((linenr_T)vimvars[VV_FOLDSTART].vv_nr > 0 && (linenr_T)vimvars[VV_FOLDEND].vv_nr <= curbuf->b_ml.ml_line_count && vimvars[VV_FOLDDASHES].vv_str != NULL) { /* Find first non-empty line in the fold. */ lnum = (linenr_T)vimvars[VV_FOLDSTART].vv_nr; while (lnum < (linenr_T)vimvars[VV_FOLDEND].vv_nr) { if (!linewhite(lnum)) break; ++lnum; } /* Find interesting text in this line. */ s = skipwhite(ml_get(lnum)); /* skip C comment-start */ if (s[0] == '/' && (s[1] == '*' || s[1] == '/')) { s = skipwhite(s + 2); if (*skipwhite(s) == NUL && lnum + 1 < (linenr_T)vimvars[VV_FOLDEND].vv_nr) { s = skipwhite(ml_get(lnum + 1)); if (*s == '*') s = skipwhite(s + 1); } } txt = _("+-%s%3ld lines: "); r = alloc((unsigned)(STRLEN(txt) + STRLEN(vimvars[VV_FOLDDASHES].vv_str) /* for %s */ + 20 /* for %3ld */ + STRLEN(s))); /* concatenated */ if (r != NULL) { sprintf((char *)r, txt, vimvars[VV_FOLDDASHES].vv_str, (long)((linenr_T)vimvars[VV_FOLDEND].vv_nr - (linenr_T)vimvars[VV_FOLDSTART].vv_nr + 1)); len = (int)STRLEN(r); STRCAT(r, s); /* remove 'foldmarker' and 'commentstring' */ foldtext_cleanup(r + len); rettv->vval.v_string = r; } } #endif } /* * "foldtextresult(lnum)" function */ /*ARGSUSED*/ static void f_foldtextresult(argvars, rettv) typval_T *argvars; typval_T *rettv; { #ifdef FEAT_FOLDING linenr_T lnum; char_u *text; char_u buf[51]; foldinfo_T foldinfo; int fold_count; #endif rettv->v_type = VAR_STRING; rettv->vval.v_string = NULL; #ifdef FEAT_FOLDING lnum = get_tv_lnum(argvars); /* treat illegal types and illegal string values for {lnum} the same */ if (lnum < 0) lnum = 0; fold_count = foldedCount(curwin, lnum, &foldinfo); if (fold_count > 0) { text = get_foldtext(curwin, lnum, lnum + fold_count - 1, &foldinfo, buf); if (text == buf) text = vim_strsave(text); rettv->vval.v_string = text; } #endif } /* * "foreground()" function */ /*ARGSUSED*/ static void f_foreground(argvars, rettv) typval_T *argvars; typval_T *rettv; { rettv->vval.v_number = 0; #ifdef FEAT_GUI if (gui.in_use) gui_mch_set_foreground(); #else # ifdef WIN32 win32_set_foreground(); # endif #endif } /* * "function()" function */ /*ARGSUSED*/ static void f_function(argvars, rettv) typval_T *argvars; typval_T *rettv; { char_u *s; rettv->vval.v_number = 0; s = get_tv_string(&argvars[0]); if (s == NULL || *s == NUL || VIM_ISDIGIT(*s)) EMSG2(_(e_invarg2), s); else if (!function_exists(s)) EMSG2(_("E700: Unknown function: %s"), s); else { rettv->vval.v_string = vim_strsave(s); rettv->v_type = VAR_FUNC; } } /* * "garbagecollect()" function */ /*ARGSUSED*/ static void f_garbagecollect(argvars, rettv) typval_T *argvars; typval_T *rettv; { /* This is postponed until we are back at the toplevel, because we may be * using Lists and Dicts internally. E.g.: ":echo [garbagecollect()]". */ want_garbage_collect = TRUE; } /* * "get()" function */ static void f_get(argvars, rettv) typval_T *argvars; typval_T *rettv; { listitem_T *li; list_T *l; dictitem_T *di; dict_T *d; typval_T *tv = NULL; if (argvars[0].v_type == VAR_LIST) { if ((l = argvars[0].vval.v_list) != NULL) { int error = FALSE; li = list_find(l, get_tv_number_chk(&argvars[1], &error)); if (!error && li != NULL) tv = &li->li_tv; } } else if (argvars[0].v_type == VAR_DICT) { if ((d = argvars[0].vval.v_dict) != NULL) { di = dict_find(d, get_tv_string(&argvars[1]), -1); if (di != NULL) tv = &di->di_tv; } } else EMSG2(_(e_listdictarg), "get()"); if (tv == NULL) { if (argvars[2].v_type == VAR_UNKNOWN) rettv->vval.v_number = 0; else copy_tv(&argvars[2], rettv); } else copy_tv(tv, rettv); } static void get_buffer_lines __ARGS((buf_T *buf, linenr_T start, linenr_T end, int retlist, typval_T *rettv)); /* * Get line or list of lines from buffer "buf" into "rettv". * Return a range (from start to end) of lines in rettv from the specified * buffer. * If 'retlist' is TRUE, then the lines are returned as a Vim List. */ static void get_buffer_lines(buf, start, end, retlist, rettv) buf_T *buf; linenr_T start; linenr_T end; int retlist; typval_T *rettv; { char_u *p; if (retlist) { if (rettv_list_alloc(rettv) == FAIL) return; } else rettv->vval.v_number = 0; if (buf == NULL || buf->b_ml.ml_mfp == NULL || start < 0) return; if (!retlist) { if (start >= 1 && start <= buf->b_ml.ml_line_count) p = ml_get_buf(buf, start, FALSE); else p = (char_u *)""; rettv->v_type = VAR_STRING; rettv->vval.v_string = vim_strsave(p); } else { if (end < start) return; if (start < 1) start = 1; if (end > buf->b_ml.ml_line_count) end = buf->b_ml.ml_line_count; while (start <= end) if (list_append_string(rettv->vval.v_list, ml_get_buf(buf, start++, FALSE), -1) == FAIL) break; } } /* * "getbufline()" function */ static void f_getbufline(argvars, rettv) typval_T *argvars; typval_T *rettv; { linenr_T lnum; linenr_T end; buf_T *buf; (void)get_tv_number(&argvars[0]); /* issue errmsg if type error */ ++emsg_off; buf = get_buf_tv(&argvars[0]); --emsg_off; lnum = get_tv_lnum_buf(&argvars[1], buf); if (argvars[2].v_type == VAR_UNKNOWN) end = lnum; else end = get_tv_lnum_buf(&argvars[2], buf); get_buffer_lines(buf, lnum, end, TRUE, rettv); } /* * "getbufvar()" function */ static void f_getbufvar(argvars, rettv) typval_T *argvars; typval_T *rettv; { buf_T *buf; buf_T *save_curbuf; char_u *varname; dictitem_T *v; (void)get_tv_number(&argvars[0]); /* issue errmsg if type error */ varname = get_tv_string_chk(&argvars[1]); ++emsg_off; buf = get_buf_tv(&argvars[0]); rettv->v_type = VAR_STRING; rettv->vval.v_string = NULL; if (buf != NULL && varname != NULL) { if (*varname == '&') /* buffer-local-option */ { /* set curbuf to be our buf, temporarily */ save_curbuf = curbuf; curbuf = buf; get_option_tv(&varname, rettv, TRUE); /* restore previous notion of curbuf */ curbuf = save_curbuf; } else { if (*varname == NUL) /* let getbufvar({nr}, "") return the "b:" dictionary. The * scope prefix before the NUL byte is required by * find_var_in_ht(). */ varname = (char_u *)"b:" + 2; /* look up the variable */ v = find_var_in_ht(&buf->b_vars.dv_hashtab, varname, FALSE); if (v != NULL) copy_tv(&v->di_tv, rettv); } } --emsg_off; } /* * "getchar()" function */ static void f_getchar(argvars, rettv) typval_T *argvars; typval_T *rettv; { varnumber_T n; int error = FALSE; /* Position the cursor. Needed after a message that ends in a space. */ windgoto(msg_row, msg_col); ++no_mapping; ++allow_keys; if (argvars[0].v_type == VAR_UNKNOWN) /* getchar(): blocking wait. */ n = safe_vgetc(); else if (get_tv_number_chk(&argvars[0], &error) == 1) /* getchar(1): only check if char avail */ n = vpeekc(); else if (error || vpeekc() == NUL) /* illegal argument or getchar(0) and no char avail: return zero */ n = 0; else /* getchar(0) and char avail: return char */ n = safe_vgetc(); --no_mapping; --allow_keys; vimvars[VV_MOUSE_WIN].vv_nr = 0; vimvars[VV_MOUSE_LNUM].vv_nr = 0; vimvars[VV_MOUSE_COL].vv_nr = 0; rettv->vval.v_number = n; if (IS_SPECIAL(n) || mod_mask != 0) { char_u temp[10]; /* modifier: 3, mbyte-char: 6, NUL: 1 */ int i = 0; /* Turn a special key into three bytes, plus modifier. */ if (mod_mask != 0) { temp[i++] = K_SPECIAL; temp[i++] = KS_MODIFIER; temp[i++] = mod_mask; } if (IS_SPECIAL(n)) { temp[i++] = K_SPECIAL; temp[i++] = K_SECOND(n); temp[i++] = K_THIRD(n); } #ifdef FEAT_MBYTE else if (has_mbyte) i += (*mb_char2bytes)(n, temp + i); #endif else temp[i++] = n; temp[i++] = NUL; rettv->v_type = VAR_STRING; rettv->vval.v_string = vim_strsave(temp); #ifdef FEAT_MOUSE if (n == K_LEFTMOUSE || n == K_LEFTMOUSE_NM || n == K_LEFTDRAG || n == K_LEFTRELEASE || n == K_LEFTRELEASE_NM || n == K_MIDDLEMOUSE || n == K_MIDDLEDRAG || n == K_MIDDLERELEASE || n == K_RIGHTMOUSE || n == K_RIGHTDRAG || n == K_RIGHTRELEASE || n == K_X1MOUSE || n == K_X1DRAG || n == K_X1RELEASE || n == K_X2MOUSE || n == K_X2DRAG || n == K_X2RELEASE || n == K_MOUSEDOWN || n == K_MOUSEUP) { int row = mouse_row; int col = mouse_col; win_T *win; linenr_T lnum; # ifdef FEAT_WINDOWS win_T *wp; # endif int n = 1; if (row >= 0 && col >= 0) { /* Find the window at the mouse coordinates and compute the * text position. */ win = mouse_find_win(&row, &col); (void)mouse_comp_pos(win, &row, &col, &lnum); # ifdef FEAT_WINDOWS for (wp = firstwin; wp != win; wp = wp->w_next) ++n; # endif vimvars[VV_MOUSE_WIN].vv_nr = n; vimvars[VV_MOUSE_LNUM].vv_nr = lnum; vimvars[VV_MOUSE_COL].vv_nr = col + 1; } } #endif } } /* * "getcharmod()" function */ /*ARGSUSED*/ static void f_getcharmod(argvars, rettv) typval_T *argvars; typval_T *rettv; { rettv->vval.v_number = mod_mask; } /* * "getcmdline()" function */ /*ARGSUSED*/ static void f_getcmdline(argvars, rettv) typval_T *argvars; typval_T *rettv; { rettv->v_type = VAR_STRING; rettv->vval.v_string = get_cmdline_str(); } /* * "getcmdpos()" function */ /*ARGSUSED*/ static void f_getcmdpos(argvars, rettv) typval_T *argvars; typval_T *rettv; { rettv->vval.v_number = get_cmdline_pos() + 1; } /* * "getcmdtype()" function */ /*ARGSUSED*/ static void f_getcmdtype(argvars, rettv) typval_T *argvars; typval_T *rettv; { rettv->v_type = VAR_STRING; rettv->vval.v_string = alloc(2); if (rettv->vval.v_string != NULL) { rettv->vval.v_string[0] = get_cmdline_type(); rettv->vval.v_string[1] = NUL; } } /* * "getcwd()" function */ /*ARGSUSED*/ static void f_getcwd(argvars, rettv) typval_T *argvars; typval_T *rettv; { char_u cwd[MAXPATHL]; rettv->v_type = VAR_STRING; if (mch_dirname(cwd, MAXPATHL) == FAIL) rettv->vval.v_string = NULL; else { rettv->vval.v_string = vim_strsave(cwd); #ifdef BACKSLASH_IN_FILENAME if (rettv->vval.v_string != NULL) slash_adjust(rettv->vval.v_string); #endif } } /* * "getfontname()" function */ /*ARGSUSED*/ static void f_getfontname(argvars, rettv) typval_T *argvars; typval_T *rettv; { rettv->v_type = VAR_STRING; rettv->vval.v_string = NULL; #ifdef FEAT_GUI if (gui.in_use) { GuiFont font; char_u *name = NULL; if (argvars[0].v_type == VAR_UNKNOWN) { /* Get the "Normal" font. Either the name saved by * hl_set_font_name() or from the font ID. */ font = gui.norm_font; name = hl_get_font_name(); } else { name = get_tv_string(&argvars[0]); if (STRCMP(name, "*") == 0) /* don't use font dialog */ return; font = gui_mch_get_font(name, FALSE); if (font == NOFONT) return; /* Invalid font name, return empty string. */ } rettv->vval.v_string = gui_mch_get_fontname(font, name); if (argvars[0].v_type != VAR_UNKNOWN) gui_mch_free_font(font); } #endif } /* * "getfperm({fname})" function */ static void f_getfperm(argvars, rettv) typval_T *argvars; typval_T *rettv; { char_u *fname; struct stat st; char_u *perm = NULL; char_u flags[] = "rwx"; int i; fname = get_tv_string(&argvars[0]); rettv->v_type = VAR_STRING; if (mch_stat((char *)fname, &st) >= 0) { perm = vim_strsave((char_u *)"---------"); if (perm != NULL) { for (i = 0; i < 9; i++) { if (st.st_mode & (1 << (8 - i))) perm[i] = flags[i % 3]; } } } rettv->vval.v_string = perm; } /* * "getfsize({fname})" function */ static void f_getfsize(argvars, rettv) typval_T *argvars; typval_T *rettv; { char_u *fname; struct stat st; fname = get_tv_string(&argvars[0]); rettv->v_type = VAR_NUMBER; if (mch_stat((char *)fname, &st) >= 0) { if (mch_isdir(fname)) rettv->vval.v_number = 0; else rettv->vval.v_number = (varnumber_T)st.st_size; } else rettv->vval.v_number = -1; } /* * "getftime({fname})" function */ static void f_getftime(argvars, rettv) typval_T *argvars; typval_T *rettv; { char_u *fname; struct stat st; fname = get_tv_string(&argvars[0]); if (mch_stat((char *)fname, &st) >= 0) rettv->vval.v_number = (varnumber_T)st.st_mtime; else rettv->vval.v_number = -1; } /* * "getftype({fname})" function */ static void f_getftype(argvars, rettv) typval_T *argvars; typval_T *rettv; { char_u *fname; struct stat st; char_u *type = NULL; char *t; fname = get_tv_string(&argvars[0]); rettv->v_type = VAR_STRING; if (mch_lstat((char *)fname, &st) >= 0) { #ifdef S_ISREG if (S_ISREG(st.st_mode)) t = "file"; else if (S_ISDIR(st.st_mode)) t = "dir"; # ifdef S_ISLNK else if (S_ISLNK(st.st_mode)) t = "link"; # endif # ifdef S_ISBLK else if (S_ISBLK(st.st_mode)) t = "bdev"; # endif # ifdef S_ISCHR else if (S_ISCHR(st.st_mode)) t = "cdev"; # endif # ifdef S_ISFIFO else if (S_ISFIFO(st.st_mode)) t = "fifo"; # endif # ifdef S_ISSOCK else if (S_ISSOCK(st.st_mode)) t = "fifo"; # endif else t = "other"; #else # ifdef S_IFMT switch (st.st_mode & S_IFMT) { case S_IFREG: t = "file"; break; case S_IFDIR: t = "dir"; break; # ifdef S_IFLNK case S_IFLNK: t = "link"; break; # endif # ifdef S_IFBLK case S_IFBLK: t = "bdev"; break; # endif # ifdef S_IFCHR case S_IFCHR: t = "cdev"; break; # endif # ifdef S_IFIFO case S_IFIFO: t = "fifo"; break; # endif # ifdef S_IFSOCK case S_IFSOCK: t = "socket"; break; # endif default: t = "other"; } # else if (mch_isdir(fname)) t = "dir"; else t = "file"; # endif #endif type = vim_strsave((char_u *)t); } rettv->vval.v_string = type; } /* * "getline(lnum, [end])" function */ static void f_getline(argvars, rettv) typval_T *argvars; typval_T *rettv; { linenr_T lnum; linenr_T end; int retlist; lnum = get_tv_lnum(argvars); if (argvars[1].v_type == VAR_UNKNOWN) { end = 0; retlist = FALSE; } else { end = get_tv_lnum(&argvars[1]); retlist = TRUE; } get_buffer_lines(curbuf, lnum, end, retlist, rettv); } /* * "getpos(string)" function */ static void f_getpos(argvars, rettv) typval_T *argvars; typval_T *rettv; { pos_T *fp; list_T *l; int fnum = -1; if (rettv_list_alloc(rettv) == OK) { l = rettv->vval.v_list; fp = var2fpos(&argvars[0], TRUE, &fnum); if (fnum != -1) list_append_number(l, (varnumber_T)fnum); else list_append_number(l, (varnumber_T)0); list_append_number(l, (fp != NULL) ? (varnumber_T)fp->lnum : (varnumber_T)0); list_append_number(l, (fp != NULL) ? (varnumber_T)fp->col + 1 : (varnumber_T)0); list_append_number(l, #ifdef FEAT_VIRTUALEDIT (fp != NULL) ? (varnumber_T)fp->coladd : #endif (varnumber_T)0); } else rettv->vval.v_number = FALSE; } /* * "getqflist()" and "getloclist()" functions */ /*ARGSUSED*/ static void f_getqflist(argvars, rettv) typval_T *argvars; typval_T *rettv; { #ifdef FEAT_QUICKFIX win_T *wp; #endif rettv->vval.v_number = 0; #ifdef FEAT_QUICKFIX if (rettv_list_alloc(rettv) == OK) { wp = NULL; if (argvars[0].v_type != VAR_UNKNOWN) /* getloclist() */ { wp = find_win_by_nr(&argvars[0], NULL); if (wp == NULL) return; } (void)get_errorlist(wp, rettv->vval.v_list); } #endif } /* * "getreg()" function */ static void f_getreg(argvars, rettv) typval_T *argvars; typval_T *rettv; { char_u *strregname; int regname; int arg2 = FALSE; int error = FALSE; if (argvars[0].v_type != VAR_UNKNOWN) { strregname = get_tv_string_chk(&argvars[0]); error = strregname == NULL; if (argvars[1].v_type != VAR_UNKNOWN) arg2 = get_tv_number_chk(&argvars[1], &error); } else strregname = vimvars[VV_REG].vv_str; regname = (strregname == NULL ? '"' : *strregname); if (regname == 0) regname = '"'; rettv->v_type = VAR_STRING; rettv->vval.v_string = error ? NULL : get_reg_contents(regname, TRUE, arg2); } /* * "getregtype()" function */ static void f_getregtype(argvars, rettv) typval_T *argvars; typval_T *rettv; { char_u *strregname; int regname; char_u buf[NUMBUFLEN + 2]; long reglen = 0; if (argvars[0].v_type != VAR_UNKNOWN) { strregname = get_tv_string_chk(&argvars[0]); if (strregname == NULL) /* type error; errmsg already given */ { rettv->v_type = VAR_STRING; rettv->vval.v_string = NULL; return; } } else /* Default to v:register */ strregname = vimvars[VV_REG].vv_str; regname = (strregname == NULL ? '"' : *strregname); if (regname == 0) regname = '"'; buf[0] = NUL; buf[1] = NUL; switch (get_reg_type(regname, ®len)) { case MLINE: buf[0] = 'V'; break; case MCHAR: buf[0] = 'v'; break; #ifdef FEAT_VISUAL case MBLOCK: buf[0] = Ctrl_V; sprintf((char *)buf + 1, "%ld", reglen + 1); break; #endif } rettv->v_type = VAR_STRING; rettv->vval.v_string = vim_strsave(buf); } /* * "gettabwinvar()" function */ static void f_gettabwinvar(argvars, rettv) typval_T *argvars; typval_T *rettv; { getwinvar(argvars, rettv, 1); } /* * "getwinposx()" function */ /*ARGSUSED*/ static void f_getwinposx(argvars, rettv) typval_T *argvars; typval_T *rettv; { rettv->vval.v_number = -1; #ifdef FEAT_GUI if (gui.in_use) { int x, y; if (gui_mch_get_winpos(&x, &y) == OK) rettv->vval.v_number = x; } #endif } /* * "getwinposy()" function */ /*ARGSUSED*/ static void f_getwinposy(argvars, rettv) typval_T *argvars; typval_T *rettv; { rettv->vval.v_number = -1; #ifdef FEAT_GUI if (gui.in_use) { int x, y; if (gui_mch_get_winpos(&x, &y) == OK) rettv->vval.v_number = y; } #endif } /* * Find window specifed by "vp" in tabpage "tp". */ static win_T * find_win_by_nr(vp, tp) typval_T *vp; tabpage_T *tp; /* NULL for current tab page */ { #ifdef FEAT_WINDOWS win_T *wp; #endif int nr; nr = get_tv_number_chk(vp, NULL); #ifdef FEAT_WINDOWS if (nr < 0) return NULL; if (nr == 0) return curwin; for (wp = (tp == NULL || tp == curtab) ? firstwin : tp->tp_firstwin; wp != NULL; wp = wp->w_next) if (--nr <= 0) break; return wp; #else if (nr == 0 || nr == 1) return curwin; return NULL; #endif } /* * "getwinvar()" function */ static void f_getwinvar(argvars, rettv) typval_T *argvars; typval_T *rettv; { getwinvar(argvars, rettv, 0); } /* * getwinvar() and gettabwinvar() */ static void getwinvar(argvars, rettv, off) typval_T *argvars; typval_T *rettv; int off; /* 1 for gettabwinvar() */ { win_T *win, *oldcurwin; char_u *varname; dictitem_T *v; tabpage_T *tp; #ifdef FEAT_WINDOWS if (off == 1) tp = find_tabpage((int)get_tv_number_chk(&argvars[0], NULL)); else tp = curtab; #endif win = find_win_by_nr(&argvars[off], tp); varname = get_tv_string_chk(&argvars[off + 1]); ++emsg_off; rettv->v_type = VAR_STRING; rettv->vval.v_string = NULL; if (win != NULL && varname != NULL) { /* Set curwin to be our win, temporarily. Also set curbuf, so * that we can get buffer-local options. */ oldcurwin = curwin; curwin = win; curbuf = win->w_buffer; if (*varname == '&') /* window-local-option */ get_option_tv(&varname, rettv, 1); else { if (*varname == NUL) /* let getwinvar({nr}, "") return the "w:" dictionary. The * scope prefix before the NUL byte is required by * find_var_in_ht(). */ varname = (char_u *)"w:" + 2; /* look up the variable */ v = find_var_in_ht(&win->w_vars.dv_hashtab, varname, FALSE); if (v != NULL) copy_tv(&v->di_tv, rettv); } /* restore previous notion of curwin */ curwin = oldcurwin; curbuf = curwin->w_buffer; } --emsg_off; } /* * "glob()" function */ static void f_glob(argvars, rettv) typval_T *argvars; typval_T *rettv; { expand_T xpc; ExpandInit(&xpc); xpc.xp_context = EXPAND_FILES; rettv->v_type = VAR_STRING; rettv->vval.v_string = ExpandOne(&xpc, get_tv_string(&argvars[0]), NULL, WILD_USE_NL|WILD_SILENT, WILD_ALL); } /* * "globpath()" function */ static void f_globpath(argvars, rettv) typval_T *argvars; typval_T *rettv; { char_u buf1[NUMBUFLEN]; char_u *file = get_tv_string_buf_chk(&argvars[1], buf1); rettv->v_type = VAR_STRING; if (file == NULL) rettv->vval.v_string = NULL; else rettv->vval.v_string = globpath(get_tv_string(&argvars[0]), file); } /* * "has()" function */ static void f_has(argvars, rettv) typval_T *argvars; typval_T *rettv; { int i; char_u *name; int n = FALSE; static char *(has_list[]) = { #ifdef AMIGA "amiga", # ifdef FEAT_ARP "arp", # endif #endif #ifdef __BEOS__ "beos", #endif #ifdef MSDOS # ifdef DJGPP "dos32", # else "dos16", # endif #endif #ifdef MACOS "mac", #endif #if defined(MACOS_X_UNIX) "macunix", #endif #ifdef OS2 "os2", #endif #ifdef __QNX__ "qnx", #endif #ifdef RISCOS "riscos", #endif #ifdef UNIX "unix", #endif #ifdef VMS "vms", #endif #ifdef WIN16 "win16", #endif #ifdef WIN32 "win32", #endif #if defined(UNIX) && (defined(__CYGWIN32__) || defined(__CYGWIN__)) "win32unix", #endif #ifdef WIN64 "win64", #endif #ifdef EBCDIC "ebcdic", #endif #ifndef CASE_INSENSITIVE_FILENAME "fname_case", #endif #ifdef FEAT_ARABIC "arabic", #endif #ifdef FEAT_AUTOCMD "autocmd", #endif #ifdef FEAT_BEVAL "balloon_eval", # ifndef FEAT_GUI_W32 /* other GUIs always have multiline balloons */ "balloon_multiline", # endif #endif #if defined(SOME_BUILTIN_TCAPS) || defined(ALL_BUILTIN_TCAPS) "builtin_terms", # ifdef ALL_BUILTIN_TCAPS "all_builtin_terms", # endif #endif #ifdef FEAT_BYTEOFF "byte_offset", #endif #ifdef FEAT_CINDENT "cindent", #endif #ifdef FEAT_CLIENTSERVER "clientserver", #endif #ifdef FEAT_CLIPBOARD "clipboard", #endif #ifdef FEAT_CMDL_COMPL "cmdline_compl", #endif #ifdef FEAT_CMDHIST "cmdline_hist", #endif #ifdef FEAT_COMMENTS "comments", #endif #ifdef FEAT_CRYPT "cryptv", #endif #ifdef FEAT_CSCOPE "cscope", #endif #ifdef CURSOR_SHAPE "cursorshape", #endif #ifdef DEBUG "debug", #endif #ifdef FEAT_CON_DIALOG "dialog_con", #endif #ifdef FEAT_GUI_DIALOG "dialog_gui", #endif #ifdef FEAT_DIFF "diff", #endif #ifdef FEAT_DIGRAPHS "digraphs", #endif #ifdef FEAT_DND "dnd", #endif #ifdef FEAT_EMACS_TAGS "emacs_tags", #endif "eval", /* always present, of course! */ #ifdef FEAT_EX_EXTRA "ex_extra", #endif #ifdef FEAT_SEARCH_EXTRA "extra_search", #endif #ifdef FEAT_FKMAP "farsi", #endif #ifdef FEAT_SEARCHPATH "file_in_path", #endif #if defined(UNIX) && !defined(USE_SYSTEM) "filterpipe", #endif #ifdef FEAT_FIND_ID "find_in_path", #endif #ifdef FEAT_FOLDING "folding", #endif #ifdef FEAT_FOOTER "footer", #endif #if !defined(USE_SYSTEM) && defined(UNIX) "fork", #endif #ifdef FEAT_GETTEXT "gettext", #endif #ifdef FEAT_GUI "gui", #endif #ifdef FEAT_GUI_ATHENA # ifdef FEAT_GUI_NEXTAW "gui_neXtaw", # else "gui_athena", # endif #endif #ifdef FEAT_GUI_GTK "gui_gtk", # ifdef HAVE_GTK2 "gui_gtk2", # endif #endif #ifdef FEAT_GUI_MAC "gui_mac", #endif #ifdef FEAT_GUI_MOTIF "gui_motif", #endif #ifdef FEAT_GUI_PHOTON "gui_photon", #endif #ifdef FEAT_GUI_W16 "gui_win16", #endif #ifdef FEAT_GUI_W32 "gui_win32", #endif #ifdef FEAT_HANGULIN "hangul_input", #endif #if defined(HAVE_ICONV_H) && defined(USE_ICONV) "iconv", #endif #ifdef FEAT_INS_EXPAND "insert_expand", #endif #ifdef FEAT_JUMPLIST "jumplist", #endif #ifdef FEAT_KEYMAP "keymap", #endif #ifdef FEAT_LANGMAP "langmap", #endif #ifdef FEAT_LIBCALL "libcall", #endif #ifdef FEAT_LINEBREAK "linebreak", #endif #ifdef FEAT_LISP "lispindent", #endif #ifdef FEAT_LISTCMDS "listcmds", #endif #ifdef FEAT_LOCALMAP "localmap", #endif #ifdef FEAT_MENU "menu", #endif #ifdef FEAT_SESSION "mksession", #endif #ifdef FEAT_MODIFY_FNAME "modify_fname", #endif #ifdef FEAT_MOUSE "mouse", #endif #ifdef FEAT_MOUSESHAPE "mouseshape", #endif #if defined(UNIX) || defined(VMS) # ifdef FEAT_MOUSE_DEC "mouse_dec", # endif # ifdef FEAT_MOUSE_GPM "mouse_gpm", # endif # ifdef FEAT_MOUSE_JSB "mouse_jsbterm", # endif # ifdef FEAT_MOUSE_NET "mouse_netterm", # endif # ifdef FEAT_MOUSE_PTERM "mouse_pterm", # endif # ifdef FEAT_MOUSE_XTERM "mouse_xterm", # endif #endif #ifdef FEAT_MBYTE "multi_byte", #endif #ifdef FEAT_MBYTE_IME "multi_byte_ime", #endif #ifdef FEAT_MULTI_LANG "multi_lang", #endif #ifdef FEAT_MZSCHEME #ifndef DYNAMIC_MZSCHEME "mzscheme", #endif #endif #ifdef FEAT_OLE "ole", #endif #ifdef FEAT_OSFILETYPE "osfiletype", #endif #ifdef FEAT_PATH_EXTRA "path_extra", #endif #ifdef FEAT_PERL #ifndef DYNAMIC_PERL "perl", #endif #endif #ifdef FEAT_PYTHON #ifndef DYNAMIC_PYTHON "python", #endif #endif #ifdef FEAT_POSTSCRIPT "postscript", #endif #ifdef FEAT_PRINTER "printer", #endif #ifdef FEAT_PROFILE "profile", #endif #ifdef FEAT_RELTIME "reltime", #endif #ifdef FEAT_QUICKFIX "quickfix", #endif #ifdef FEAT_RIGHTLEFT "rightleft", #endif #if defined(FEAT_RUBY) && !defined(DYNAMIC_RUBY) "ruby", #endif #ifdef FEAT_SCROLLBIND "scrollbind", #endif #ifdef FEAT_CMDL_INFO "showcmd", "cmdline_info", #endif #ifdef FEAT_SIGNS "signs", #endif #ifdef FEAT_SMARTINDENT "smartindent", #endif #ifdef FEAT_SNIFF "sniff", #endif #ifdef FEAT_STL_OPT "statusline", #endif #ifdef FEAT_SUN_WORKSHOP "sun_workshop", #endif #ifdef FEAT_NETBEANS_INTG "netbeans_intg", #endif #ifdef FEAT_SPELL "spell", #endif #ifdef FEAT_SYN_HL "syntax", #endif #if defined(USE_SYSTEM) || !defined(UNIX) "system", #endif #ifdef FEAT_TAG_BINS "tag_binary", #endif #ifdef FEAT_TAG_OLDSTATIC "tag_old_static", #endif #ifdef FEAT_TAG_ANYWHITE "tag_any_white", #endif #ifdef FEAT_TCL # ifndef DYNAMIC_TCL "tcl", # endif #endif #ifdef TERMINFO "terminfo", #endif #ifdef FEAT_TERMRESPONSE "termresponse", #endif #ifdef FEAT_TEXTOBJ "textobjects", #endif #ifdef HAVE_TGETENT "tgetent", #endif #ifdef FEAT_TITLE "title", #endif #ifdef FEAT_TOOLBAR "toolbar", #endif #ifdef FEAT_USR_CMDS "user-commands", /* was accidentally included in 5.4 */ "user_commands", #endif #ifdef FEAT_VIMINFO "viminfo", #endif #ifdef FEAT_VERTSPLIT "vertsplit", #endif #ifdef FEAT_VIRTUALEDIT "virtualedit", #endif #ifdef FEAT_VISUAL "visual", #endif #ifdef FEAT_VISUALEXTRA "visualextra", #endif #ifdef FEAT_VREPLACE "vreplace", #endif #ifdef FEAT_WILDIGN "wildignore", #endif #ifdef FEAT_WILDMENU "wildmenu", #endif #ifdef FEAT_WINDOWS "windows", #endif #ifdef FEAT_WAK "winaltkeys", #endif #ifdef FEAT_WRITEBACKUP "writebackup", #endif #ifdef FEAT_XIM "xim", #endif #ifdef FEAT_XFONTSET "xfontset", #endif #ifdef USE_XSMP "xsmp", #endif #ifdef USE_XSMP_INTERACT "xsmp_interact", #endif #ifdef FEAT_XCLIPBOARD "xterm_clipboard", #endif #ifdef FEAT_XTERM_SAVE "xterm_save", #endif #if defined(UNIX) && defined(FEAT_X11) "X11", #endif NULL }; name = get_tv_string(&argvars[0]); for (i = 0; has_list[i] != NULL; ++i) if (STRICMP(name, has_list[i]) == 0) { n = TRUE; break; } if (n == FALSE) { if (STRNICMP(name, "patch", 5) == 0) n = has_patch(atoi((char *)name + 5)); else if (STRICMP(name, "vim_starting") == 0) n = (starting != 0); #if defined(FEAT_BEVAL) && defined(FEAT_GUI_W32) else if (STRICMP(name, "balloon_multiline") == 0) n = multiline_balloon_available(); #endif #ifdef DYNAMIC_TCL else if (STRICMP(name, "tcl") == 0) n = tcl_enabled(FALSE); #endif #if defined(USE_ICONV) && defined(DYNAMIC_ICONV) else if (STRICMP(name, "iconv") == 0) n = iconv_enabled(FALSE); #endif #ifdef DYNAMIC_MZSCHEME else if (STRICMP(name, "mzscheme") == 0) n = mzscheme_enabled(FALSE); #endif #ifdef DYNAMIC_RUBY else if (STRICMP(name, "ruby") == 0) n = ruby_enabled(FALSE); #endif #ifdef DYNAMIC_PYTHON else if (STRICMP(name, "python") == 0) n = python_enabled(FALSE); #endif #ifdef DYNAMIC_PERL else if (STRICMP(name, "perl") == 0) n = perl_enabled(FALSE); #endif #ifdef FEAT_GUI else if (STRICMP(name, "gui_running") == 0) n = (gui.in_use || gui.starting); # ifdef FEAT_GUI_W32 else if (STRICMP(name, "gui_win32s") == 0) n = gui_is_win32s(); # endif # ifdef FEAT_BROWSE else if (STRICMP(name, "browse") == 0) n = gui.in_use; /* gui_mch_browse() works when GUI is running */ # endif #endif #ifdef FEAT_SYN_HL else if (STRICMP(name, "syntax_items") == 0) n = syntax_present(curbuf); #endif #if defined(WIN3264) else if (STRICMP(name, "win95") == 0) n = mch_windows95(); #endif #ifdef FEAT_NETBEANS_INTG else if (STRICMP(name, "netbeans_enabled") == 0) n = usingNetbeans; #endif } rettv->vval.v_number = n; } /* * "has_key()" function */ static void f_has_key(argvars, rettv) typval_T *argvars; typval_T *rettv; { rettv->vval.v_number = 0; if (argvars[0].v_type != VAR_DICT) { EMSG(_(e_dictreq)); return; } if (argvars[0].vval.v_dict == NULL) return; rettv->vval.v_number = dict_find(argvars[0].vval.v_dict, get_tv_string(&argvars[1]), -1) != NULL; } /* * "haslocaldir()" function */ /*ARGSUSED*/ static void f_haslocaldir(argvars, rettv) typval_T *argvars; typval_T *rettv; { rettv->vval.v_number = (curwin->w_localdir != NULL); } /* * "hasmapto()" function */ static void f_hasmapto(argvars, rettv) typval_T *argvars; typval_T *rettv; { char_u *name; char_u *mode; char_u buf[NUMBUFLEN]; int abbr = FALSE; name = get_tv_string(&argvars[0]); if (argvars[1].v_type == VAR_UNKNOWN) mode = (char_u *)"nvo"; else { mode = get_tv_string_buf(&argvars[1], buf); if (argvars[2].v_type != VAR_UNKNOWN) abbr = get_tv_number(&argvars[2]); } if (map_to_exists(name, mode, abbr)) rettv->vval.v_number = TRUE; else rettv->vval.v_number = FALSE; } /* * "histadd()" function */ /*ARGSUSED*/ static void f_histadd(argvars, rettv) typval_T *argvars; typval_T *rettv; { #ifdef FEAT_CMDHIST int histype; char_u *str; char_u buf[NUMBUFLEN]; #endif rettv->vval.v_number = FALSE; if (check_restricted() || check_secure()) return; #ifdef FEAT_CMDHIST str = get_tv_string_chk(&argvars[0]); /* NULL on type error */ histype = str != NULL ? get_histtype(str) : -1; if (histype >= 0) { str = get_tv_string_buf(&argvars[1], buf); if (*str != NUL) { add_to_history(histype, str, FALSE, NUL); rettv->vval.v_number = TRUE; return; } } #endif } /* * "histdel()" function */ /*ARGSUSED*/ static void f_histdel(argvars, rettv) typval_T *argvars; typval_T *rettv; { #ifdef FEAT_CMDHIST int n; char_u buf[NUMBUFLEN]; char_u *str; str = get_tv_string_chk(&argvars[0]); /* NULL on type error */ if (str == NULL) n = 0; else if (argvars[1].v_type == VAR_UNKNOWN) /* only one argument: clear entire history */ n = clr_history(get_histtype(str)); else if (argvars[1].v_type == VAR_NUMBER) /* index given: remove that entry */ n = del_history_idx(get_histtype(str), (int)get_tv_number(&argvars[1])); else /* string given: remove all matching entries */ n = del_history_entry(get_histtype(str), get_tv_string_buf(&argvars[1], buf)); rettv->vval.v_number = n; #else rettv->vval.v_number = 0; #endif } /* * "histget()" function */ /*ARGSUSED*/ static void f_histget(argvars, rettv) typval_T *argvars; typval_T *rettv; { #ifdef FEAT_CMDHIST int type; int idx; char_u *str; str = get_tv_string_chk(&argvars[0]); /* NULL on type error */ if (str == NULL) rettv->vval.v_string = NULL; else { type = get_histtype(str); if (argvars[1].v_type == VAR_UNKNOWN) idx = get_history_idx(type); else idx = (int)get_tv_number_chk(&argvars[1], NULL); /* -1 on type error */ rettv->vval.v_string = vim_strsave(get_history_entry(type, idx)); } #else rettv->vval.v_string = NULL; #endif rettv->v_type = VAR_STRING; } /* * "histnr()" function */ /*ARGSUSED*/ static void f_histnr(argvars, rettv) typval_T *argvars; typval_T *rettv; { int i; #ifdef FEAT_CMDHIST char_u *history = get_tv_string_chk(&argvars[0]); i = history == NULL ? HIST_CMD - 1 : get_histtype(history); if (i >= HIST_CMD && i < HIST_COUNT) i = get_history_idx(i); else #endif i = -1; rettv->vval.v_number = i; } /* * "highlightID(name)" function */ static void f_hlID(argvars, rettv) typval_T *argvars; typval_T *rettv; { rettv->vval.v_number = syn_name2id(get_tv_string(&argvars[0])); } /* * "highlight_exists()" function */ static void f_hlexists(argvars, rettv) typval_T *argvars; typval_T *rettv; { rettv->vval.v_number = highlight_exists(get_tv_string(&argvars[0])); } /* * "hostname()" function */ /*ARGSUSED*/ static void f_hostname(argvars, rettv) typval_T *argvars; typval_T *rettv; { char_u hostname[256]; mch_get_host_name(hostname, 256); rettv->v_type = VAR_STRING; rettv->vval.v_string = vim_strsave(hostname); } /* * iconv() function */ /*ARGSUSED*/ static void f_iconv(argvars, rettv) typval_T *argvars; typval_T *rettv; { #ifdef FEAT_MBYTE char_u buf1[NUMBUFLEN]; char_u buf2[NUMBUFLEN]; char_u *from, *to, *str; vimconv_T vimconv; #endif rettv->v_type = VAR_STRING; rettv->vval.v_string = NULL; #ifdef FEAT_MBYTE str = get_tv_string(&argvars[0]); from = enc_canonize(enc_skip(get_tv_string_buf(&argvars[1], buf1))); to = enc_canonize(enc_skip(get_tv_string_buf(&argvars[2], buf2))); vimconv.vc_type = CONV_NONE; convert_setup(&vimconv, from, to); /* If the encodings are equal, no conversion needed. */ if (vimconv.vc_type == CONV_NONE) rettv->vval.v_string = vim_strsave(str); else rettv->vval.v_string = string_convert(&vimconv, str, NULL); convert_setup(&vimconv, NULL, NULL); vim_free(from); vim_free(to); #endif } /* * "indent()" function */ static void f_indent(argvars, rettv) typval_T *argvars; typval_T *rettv; { linenr_T lnum; lnum = get_tv_lnum(argvars); if (lnum >= 1 && lnum <= curbuf->b_ml.ml_line_count) rettv->vval.v_number = get_indent_lnum(lnum); else rettv->vval.v_number = -1; } /* * "index()" function */ static void f_index(argvars, rettv) typval_T *argvars; typval_T *rettv; { list_T *l; listitem_T *item; long idx = 0; int ic = FALSE; rettv->vval.v_number = -1; if (argvars[0].v_type != VAR_LIST) { EMSG(_(e_listreq)); return; } l = argvars[0].vval.v_list; if (l != NULL) { item = l->lv_first; if (argvars[2].v_type != VAR_UNKNOWN) { int error = FALSE; /* Start at specified item. Use the cached index that list_find() * sets, so that a negative number also works. */ item = list_find(l, get_tv_number_chk(&argvars[2], &error)); idx = l->lv_idx; if (argvars[3].v_type != VAR_UNKNOWN) ic = get_tv_number_chk(&argvars[3], &error); if (error) item = NULL; } for ( ; item != NULL; item = item->li_next, ++idx) if (tv_equal(&item->li_tv, &argvars[1], ic)) { rettv->vval.v_number = idx; break; } } } static int inputsecret_flag = 0; static void get_user_input __ARGS((typval_T *argvars, typval_T *rettv, int inputdialog)); /* * This function is used by f_input() and f_inputdialog() functions. The third * argument to f_input() specifies the type of completion to use at the * prompt. The third argument to f_inputdialog() specifies the value to return * when the user cancels the prompt. */ static void get_user_input(argvars, rettv, inputdialog) typval_T *argvars; typval_T *rettv; int inputdialog; { char_u *prompt = get_tv_string_chk(&argvars[0]); char_u *p = NULL; int c; char_u buf[NUMBUFLEN]; int cmd_silent_save = cmd_silent; char_u *defstr = (char_u *)""; int xp_type = EXPAND_NOTHING; char_u *xp_arg = NULL; rettv->v_type = VAR_STRING; #ifdef NO_CONSOLE_INPUT /* While starting up, there is no place to enter text. */ if (no_console_input()) { rettv->vval.v_string = NULL; return; } #endif cmd_silent = FALSE; /* Want to see the prompt. */ if (prompt != NULL) { /* Only the part of the message after the last NL is considered as * prompt for the command line */ p = vim_strrchr(prompt, '\n'); if (p == NULL) p = prompt; else { ++p; c = *p; *p = NUL; msg_start(); msg_clr_eos(); msg_puts_attr(prompt, echo_attr); msg_didout = FALSE; msg_starthere(); *p = c; } cmdline_row = msg_row; if (argvars[1].v_type != VAR_UNKNOWN) { defstr = get_tv_string_buf_chk(&argvars[1], buf); if (defstr != NULL) stuffReadbuffSpec(defstr); if (!inputdialog && argvars[2].v_type != VAR_UNKNOWN) { char_u *xp_name; int xp_namelen; long argt; rettv->vval.v_string = NULL; xp_name = get_tv_string_buf_chk(&argvars[2], buf); if (xp_name == NULL) return; xp_namelen = (int)STRLEN(xp_name); if (parse_compl_arg(xp_name, xp_namelen, &xp_type, &argt, &xp_arg) == FAIL) return; } } if (defstr != NULL) rettv->vval.v_string = getcmdline_prompt(inputsecret_flag ? NUL : '@', p, echo_attr, xp_type, xp_arg); vim_free(xp_arg); /* since the user typed this, no need to wait for return */ need_wait_return = FALSE; msg_didout = FALSE; } cmd_silent = cmd_silent_save; } /* * "input()" function * Also handles inputsecret() when inputsecret is set. */ static void f_input(argvars, rettv) typval_T *argvars; typval_T *rettv; { get_user_input(argvars, rettv, FALSE); } /* * "inputdialog()" function */ static void f_inputdialog(argvars, rettv) typval_T *argvars; typval_T *rettv; { #if defined(FEAT_GUI_TEXTDIALOG) /* Use a GUI dialog if the GUI is running and 'c' is not in 'guioptions' */ if (gui.in_use && vim_strchr(p_go, GO_CONDIALOG) == NULL) { char_u *message; char_u buf[NUMBUFLEN]; char_u *defstr = (char_u *)""; message = get_tv_string_chk(&argvars[0]); if (argvars[1].v_type != VAR_UNKNOWN && (defstr = get_tv_string_buf_chk(&argvars[1], buf)) != NULL) vim_strncpy(IObuff, defstr, IOSIZE - 1); else IObuff[0] = NUL; if (message != NULL && defstr != NULL && do_dialog(VIM_QUESTION, NULL, message, (char_u *)_("&OK\n&Cancel"), 1, IObuff) == 1) rettv->vval.v_string = vim_strsave(IObuff); else { if (message != NULL && defstr != NULL && argvars[1].v_type != VAR_UNKNOWN && argvars[2].v_type != VAR_UNKNOWN) rettv->vval.v_string = vim_strsave( get_tv_string_buf(&argvars[2], buf)); else rettv->vval.v_string = NULL; } rettv->v_type = VAR_STRING; } else #endif get_user_input(argvars, rettv, TRUE); } /* * "inputlist()" function */ static void f_inputlist(argvars, rettv) typval_T *argvars; typval_T *rettv; { listitem_T *li; int selected; int mouse_used; rettv->vval.v_number = 0; #ifdef NO_CONSOLE_INPUT /* While starting up, there is no place to enter text. */ if (no_console_input()) return; #endif if (argvars[0].v_type != VAR_LIST || argvars[0].vval.v_list == NULL) { EMSG2(_(e_listarg), "inputlist()"); return; } msg_start(); msg_row = Rows - 1; /* for when 'cmdheight' > 1 */ lines_left = Rows; /* avoid more prompt */ msg_scroll = TRUE; msg_clr_eos(); for (li = argvars[0].vval.v_list->lv_first; li != NULL; li = li->li_next) { msg_puts(get_tv_string(&li->li_tv)); msg_putchar('\n'); } /* Ask for choice. */ selected = prompt_for_number(&mouse_used); if (mouse_used) selected -= lines_left; rettv->vval.v_number = selected; } static garray_T ga_userinput = {0, 0, sizeof(tasave_T), 4, NULL}; /* * "inputrestore()" function */ /*ARGSUSED*/ static void f_inputrestore(argvars, rettv) typval_T *argvars; typval_T *rettv; { if (ga_userinput.ga_len > 0) { --ga_userinput.ga_len; restore_typeahead((tasave_T *)(ga_userinput.ga_data) + ga_userinput.ga_len); rettv->vval.v_number = 0; /* OK */ } else if (p_verbose > 1) { verb_msg((char_u *)_("called inputrestore() more often than inputsave()")); rettv->vval.v_number = 1; /* Failed */ } } /* * "inputsave()" function */ /*ARGSUSED*/ static void f_inputsave(argvars, rettv) typval_T *argvars; typval_T *rettv; { /* Add an entry to the stack of typehead storage. */ if (ga_grow(&ga_userinput, 1) == OK) { save_typeahead((tasave_T *)(ga_userinput.ga_data) + ga_userinput.ga_len); ++ga_userinput.ga_len; rettv->vval.v_number = 0; /* OK */ } else rettv->vval.v_number = 1; /* Failed */ } /* * "inputsecret()" function */ static void f_inputsecret(argvars, rettv) typval_T *argvars; typval_T *rettv; { ++cmdline_star; ++inputsecret_flag; f_input(argvars, rettv); --cmdline_star; --inputsecret_flag; } /* * "insert()" function */ static void f_insert(argvars, rettv) typval_T *argvars; typval_T *rettv; { long before = 0; listitem_T *item; list_T *l; int error = FALSE; rettv->vval.v_number = 0; if (argvars[0].v_type != VAR_LIST) EMSG2(_(e_listarg), "insert()"); else if ((l = argvars[0].vval.v_list) != NULL && !tv_check_lock(l->lv_lock, (char_u *)"insert()")) { if (argvars[2].v_type != VAR_UNKNOWN) before = get_tv_number_chk(&argvars[2], &error); if (error) return; /* type error; errmsg already given */ if (before == l->lv_len) item = NULL; else { item = list_find(l, before); if (item == NULL) { EMSGN(_(e_listidx), before); l = NULL; } } if (l != NULL) { list_insert_tv(l, &argvars[1], item); copy_tv(&argvars[0], rettv); } } } /* * "isdirectory()" function */ static void f_isdirectory(argvars, rettv) typval_T *argvars; typval_T *rettv; { rettv->vval.v_number = mch_isdir(get_tv_string(&argvars[0])); } /* * "islocked()" function */ static void f_islocked(argvars, rettv) typval_T *argvars; typval_T *rettv; { lval_T lv; char_u *end; dictitem_T *di; rettv->vval.v_number = -1; end = get_lval(get_tv_string(&argvars[0]), NULL, &lv, FALSE, FALSE, FALSE, FNE_CHECK_START); if (end != NULL && lv.ll_name != NULL) { if (*end != NUL) EMSG(_(e_trailing)); else { if (lv.ll_tv == NULL) { if (check_changedtick(lv.ll_name)) rettv->vval.v_number = 1; /* always locked */ else { di = find_var(lv.ll_name, NULL); if (di != NULL) { /* Consider a variable locked when: * 1. the variable itself is locked * 2. the value of the variable is locked. * 3. the List or Dict value is locked. */ rettv->vval.v_number = ((di->di_flags & DI_FLAGS_LOCK) || tv_islocked(&di->di_tv)); } } } else if (lv.ll_range) EMSG(_("E786: Range not allowed")); else if (lv.ll_newkey != NULL) EMSG2(_(e_dictkey), lv.ll_newkey); else if (lv.ll_list != NULL) /* List item. */ rettv->vval.v_number = tv_islocked(&lv.ll_li->li_tv); else /* Dictionary item. */ rettv->vval.v_number = tv_islocked(&lv.ll_di->di_tv); } } clear_lval(&lv); } static void dict_list __ARGS((typval_T *argvars, typval_T *rettv, int what)); /* * Turn a dict into a list: * "what" == 0: list of keys * "what" == 1: list of values * "what" == 2: list of items */ static void dict_list(argvars, rettv, what) typval_T *argvars; typval_T *rettv; int what; { list_T *l2; dictitem_T *di; hashitem_T *hi; listitem_T *li; listitem_T *li2; dict_T *d; int todo; rettv->vval.v_number = 0; if (argvars[0].v_type != VAR_DICT) { EMSG(_(e_dictreq)); return; } if ((d = argvars[0].vval.v_dict) == NULL) return; if (rettv_list_alloc(rettv) == FAIL) return; todo = (int)d->dv_hashtab.ht_used; for (hi = d->dv_hashtab.ht_array; todo > 0; ++hi) { if (!HASHITEM_EMPTY(hi)) { --todo; di = HI2DI(hi); li = listitem_alloc(); if (li == NULL) break; list_append(rettv->vval.v_list, li); if (what == 0) { /* keys() */ li->li_tv.v_type = VAR_STRING; li->li_tv.v_lock = 0; li->li_tv.vval.v_string = vim_strsave(di->di_key); } else if (what == 1) { /* values() */ copy_tv(&di->di_tv, &li->li_tv); } else { /* items() */ l2 = list_alloc(); li->li_tv.v_type = VAR_LIST; li->li_tv.v_lock = 0; li->li_tv.vval.v_list = l2; if (l2 == NULL) break; ++l2->lv_refcount; li2 = listitem_alloc(); if (li2 == NULL) break; list_append(l2, li2); li2->li_tv.v_type = VAR_STRING; li2->li_tv.v_lock = 0; li2->li_tv.vval.v_string = vim_strsave(di->di_key); li2 = listitem_alloc(); if (li2 == NULL) break; list_append(l2, li2); copy_tv(&di->di_tv, &li2->li_tv); } } } } /* * "items(dict)" function */ static void f_items(argvars, rettv) typval_T *argvars; typval_T *rettv; { dict_list(argvars, rettv, 2); } /* * "join()" function */ static void f_join(argvars, rettv) typval_T *argvars; typval_T *rettv; { garray_T ga; char_u *sep; rettv->vval.v_number = 0; if (argvars[0].v_type != VAR_LIST) { EMSG(_(e_listreq)); return; } if (argvars[0].vval.v_list == NULL) return; if (argvars[1].v_type == VAR_UNKNOWN) sep = (char_u *)" "; else sep = get_tv_string_chk(&argvars[1]); rettv->v_type = VAR_STRING; if (sep != NULL) { ga_init2(&ga, (int)sizeof(char), 80); list_join(&ga, argvars[0].vval.v_list, sep, TRUE, 0); ga_append(&ga, NUL); rettv->vval.v_string = (char_u *)ga.ga_data; } else rettv->vval.v_string = NULL; } /* * "keys()" function */ static void f_keys(argvars, rettv) typval_T *argvars; typval_T *rettv; { dict_list(argvars, rettv, 0); } /* * "last_buffer_nr()" function. */ /*ARGSUSED*/ static void f_last_buffer_nr(argvars, rettv) typval_T *argvars; typval_T *rettv; { int n = 0; buf_T *buf; for (buf = firstbuf; buf != NULL; buf = buf->b_next) if (n < buf->b_fnum) n = buf->b_fnum; rettv->vval.v_number = n; } /* * "len()" function */ static void f_len(argvars, rettv) typval_T *argvars; typval_T *rettv; { switch (argvars[0].v_type) { case VAR_STRING: case VAR_NUMBER: rettv->vval.v_number = (varnumber_T)STRLEN( get_tv_string(&argvars[0])); break; case VAR_LIST: rettv->vval.v_number = list_len(argvars[0].vval.v_list); break; case VAR_DICT: rettv->vval.v_number = dict_len(argvars[0].vval.v_dict); break; default: EMSG(_("E701: Invalid type for len()")); break; } } static void libcall_common __ARGS((typval_T *argvars, typval_T *rettv, int type)); static void libcall_common(argvars, rettv, type) typval_T *argvars; typval_T *rettv; int type; { #ifdef FEAT_LIBCALL char_u *string_in; char_u **string_result; int nr_result; #endif rettv->v_type = type; if (type == VAR_NUMBER) rettv->vval.v_number = 0; else rettv->vval.v_string = NULL; if (check_restricted() || check_secure()) return; #ifdef FEAT_LIBCALL /* The first two args must be strings, otherwise its meaningless */ if (argvars[0].v_type == VAR_STRING && argvars[1].v_type == VAR_STRING) { string_in = NULL; if (argvars[2].v_type == VAR_STRING) string_in = argvars[2].vval.v_string; if (type == VAR_NUMBER) string_result = NULL; else string_result = &rettv->vval.v_string; if (mch_libcall(argvars[0].vval.v_string, argvars[1].vval.v_string, string_in, argvars[2].vval.v_number, string_result, &nr_result) == OK && type == VAR_NUMBER) rettv->vval.v_number = nr_result; } #endif } /* * "libcall()" function */ static void f_libcall(argvars, rettv) typval_T *argvars; typval_T *rettv; { libcall_common(argvars, rettv, VAR_STRING); } /* * "libcallnr()" function */ static void f_libcallnr(argvars, rettv) typval_T *argvars; typval_T *rettv; { libcall_common(argvars, rettv, VAR_NUMBER); } /* * "line(string)" function */ static void f_line(argvars, rettv) typval_T *argvars; typval_T *rettv; { linenr_T lnum = 0; pos_T *fp; int fnum; fp = var2fpos(&argvars[0], TRUE, &fnum); if (fp != NULL) lnum = fp->lnum; rettv->vval.v_number = lnum; } /* * "line2byte(lnum)" function */ /*ARGSUSED*/ static void f_line2byte(argvars, rettv) typval_T *argvars; typval_T *rettv; { #ifndef FEAT_BYTEOFF rettv->vval.v_number = -1; #else linenr_T lnum; lnum = get_tv_lnum(argvars); if (lnum < 1 || lnum > curbuf->b_ml.ml_line_count + 1) rettv->vval.v_number = -1; else rettv->vval.v_number = ml_find_line_or_offset(curbuf, lnum, NULL); if (rettv->vval.v_number >= 0) ++rettv->vval.v_number; #endif } /* * "lispindent(lnum)" function */ static void f_lispindent(argvars, rettv) typval_T *argvars; typval_T *rettv; { #ifdef FEAT_LISP pos_T pos; linenr_T lnum; pos = curwin->w_cursor; lnum = get_tv_lnum(argvars); if (lnum >= 1 && lnum <= curbuf->b_ml.ml_line_count) { curwin->w_cursor.lnum = lnum; rettv->vval.v_number = get_lisp_indent(); curwin->w_cursor = pos; } else #endif rettv->vval.v_number = -1; } /* * "localtime()" function */ /*ARGSUSED*/ static void f_localtime(argvars, rettv) typval_T *argvars; typval_T *rettv; { rettv->vval.v_number = (varnumber_T)time(NULL); } static void get_maparg __ARGS((typval_T *argvars, typval_T *rettv, int exact)); static void get_maparg(argvars, rettv, exact) typval_T *argvars; typval_T *rettv; int exact; { char_u *keys; char_u *which; char_u buf[NUMBUFLEN]; char_u *keys_buf = NULL; char_u *rhs; int mode; garray_T ga; int abbr = FALSE; /* return empty string for failure */ rettv->v_type = VAR_STRING; rettv->vval.v_string = NULL; keys = get_tv_string(&argvars[0]); if (*keys == NUL) return; if (argvars[1].v_type != VAR_UNKNOWN) { which = get_tv_string_buf_chk(&argvars[1], buf); if (argvars[2].v_type != VAR_UNKNOWN) abbr = get_tv_number(&argvars[2]); } else which = (char_u *)""; if (which == NULL) return; mode = get_map_mode(&which, 0); keys = replace_termcodes(keys, &keys_buf, TRUE, TRUE, FALSE); rhs = check_map(keys, mode, exact, FALSE, abbr); vim_free(keys_buf); if (rhs != NULL) { ga_init(&ga); ga.ga_itemsize = 1; ga.ga_growsize = 40; while (*rhs != NUL) ga_concat(&ga, str2special(&rhs, FALSE)); ga_append(&ga, NUL); rettv->vval.v_string = (char_u *)ga.ga_data; } } /* * "map()" function */ static void f_map(argvars, rettv) typval_T *argvars; typval_T *rettv; { filter_map(argvars, rettv, TRUE); } /* * "maparg()" function */ static void f_maparg(argvars, rettv) typval_T *argvars; typval_T *rettv; { get_maparg(argvars, rettv, TRUE); } /* * "mapcheck()" function */ static void f_mapcheck(argvars, rettv) typval_T *argvars; typval_T *rettv; { get_maparg(argvars, rettv, FALSE); } static void find_some_match __ARGS((typval_T *argvars, typval_T *rettv, int start)); static void find_some_match(argvars, rettv, type) typval_T *argvars; typval_T *rettv; int type; { char_u *str = NULL; char_u *expr = NULL; char_u *pat; regmatch_T regmatch; char_u patbuf[NUMBUFLEN]; char_u strbuf[NUMBUFLEN]; char_u *save_cpo; long start = 0; long nth = 1; colnr_T startcol = 0; int match = 0; list_T *l = NULL; listitem_T *li = NULL; long idx = 0; char_u *tofree = NULL; /* Make 'cpoptions' empty, the 'l' flag should not be used here. */ save_cpo = p_cpo; p_cpo = (char_u *)""; rettv->vval.v_number = -1; if (type == 3) { /* return empty list when there are no matches */ if (rettv_list_alloc(rettv) == FAIL) goto theend; } else if (type == 2) { rettv->v_type = VAR_STRING; rettv->vval.v_string = NULL; } if (argvars[0].v_type == VAR_LIST) { if ((l = argvars[0].vval.v_list) == NULL) goto theend; li = l->lv_first; } else expr = str = get_tv_string(&argvars[0]); pat = get_tv_string_buf_chk(&argvars[1], patbuf); if (pat == NULL) goto theend; if (argvars[2].v_type != VAR_UNKNOWN) { int error = FALSE; start = get_tv_number_chk(&argvars[2], &error); if (error) goto theend; if (l != NULL) { li = list_find(l, start); if (li == NULL) goto theend; idx = l->lv_idx; /* use the cached index */ } else { if (start < 0) start = 0; if (start > (long)STRLEN(str)) goto theend; /* When "count" argument is there ignore matches before "start", * otherwise skip part of the string. Differs when pattern is "^" * or "\<". */ if (argvars[3].v_type != VAR_UNKNOWN) startcol = start; else str += start; } if (argvars[3].v_type != VAR_UNKNOWN) nth = get_tv_number_chk(&argvars[3], &error); if (error) goto theend; } regmatch.regprog = vim_regcomp(pat, RE_MAGIC + RE_STRING); if (regmatch.regprog != NULL) { regmatch.rm_ic = p_ic; for (;;) { if (l != NULL) { if (li == NULL) { match = FALSE; break; } vim_free(tofree); str = echo_string(&li->li_tv, &tofree, strbuf, 0); if (str == NULL) break; } match = vim_regexec_nl(®match, str, (colnr_T)startcol); if (match && --nth <= 0) break; if (l == NULL && !match) break; /* Advance to just after the match. */ if (l != NULL) { li = li->li_next; ++idx; } else { #ifdef FEAT_MBYTE startcol = (colnr_T)(regmatch.startp[0] + (*mb_ptr2len)(regmatch.startp[0]) - str); #else startcol = regmatch.startp[0] + 1 - str; #endif } } if (match) { if (type == 3) { int i; /* return list with matched string and submatches */ for (i = 0; i < NSUBEXP; ++i) { if (regmatch.endp[i] == NULL) { if (list_append_string(rettv->vval.v_list, (char_u *)"", 0) == FAIL) break; } else if (list_append_string(rettv->vval.v_list, regmatch.startp[i], (int)(regmatch.endp[i] - regmatch.startp[i])) == FAIL) break; } } else if (type == 2) { /* return matched string */ if (l != NULL) copy_tv(&li->li_tv, rettv); else rettv->vval.v_string = vim_strnsave(regmatch.startp[0], (int)(regmatch.endp[0] - regmatch.startp[0])); } else if (l != NULL) rettv->vval.v_number = idx; else { if (type != 0) rettv->vval.v_number = (varnumber_T)(regmatch.startp[0] - str); else rettv->vval.v_number = (varnumber_T)(regmatch.endp[0] - str); rettv->vval.v_number += (varnumber_T)(str - expr); } } vim_free(regmatch.regprog); } theend: vim_free(tofree); p_cpo = save_cpo; } /* * "match()" function */ static void f_match(argvars, rettv) typval_T *argvars; typval_T *rettv; { find_some_match(argvars, rettv, 1); } /* * "matcharg()" function */ static void f_matcharg(argvars, rettv) typval_T *argvars; typval_T *rettv; { if (rettv_list_alloc(rettv) == OK) { #ifdef FEAT_SEARCH_EXTRA int mi = get_tv_number(&argvars[0]); if (mi >= 1 && mi <= 3) { list_append_string(rettv->vval.v_list, syn_id2name(curwin->w_match_id[mi - 1]), -1); list_append_string(rettv->vval.v_list, curwin->w_match_pat[mi - 1], -1); } #endif } } /* * "matchend()" function */ static void f_matchend(argvars, rettv) typval_T *argvars; typval_T *rettv; { find_some_match(argvars, rettv, 0); } /* * "matchlist()" function */ static void f_matchlist(argvars, rettv) typval_T *argvars; typval_T *rettv; { find_some_match(argvars, rettv, 3); } /* * "matchstr()" function */ static void f_matchstr(argvars, rettv) typval_T *argvars; typval_T *rettv; { find_some_match(argvars, rettv, 2); } static void max_min __ARGS((typval_T *argvars, typval_T *rettv, int domax)); static void max_min(argvars, rettv, domax) typval_T *argvars; typval_T *rettv; int domax; { long n = 0; long i; int error = FALSE; if (argvars[0].v_type == VAR_LIST) { list_T *l; listitem_T *li; l = argvars[0].vval.v_list; if (l != NULL) { li = l->lv_first; if (li != NULL) { n = get_tv_number_chk(&li->li_tv, &error); for (;;) { li = li->li_next; if (li == NULL) break; i = get_tv_number_chk(&li->li_tv, &error); if (domax ? i > n : i < n) n = i; } } } } else if (argvars[0].v_type == VAR_DICT) { dict_T *d; int first = TRUE; hashitem_T *hi; int todo; d = argvars[0].vval.v_dict; if (d != NULL) { todo = (int)d->dv_hashtab.ht_used; for (hi = d->dv_hashtab.ht_array; todo > 0; ++hi) { if (!HASHITEM_EMPTY(hi)) { --todo; i = get_tv_number_chk(&HI2DI(hi)->di_tv, &error); if (first) { n = i; first = FALSE; } else if (domax ? i > n : i < n) n = i; } } } } else EMSG(_(e_listdictarg)); rettv->vval.v_number = error ? 0 : n; } /* * "max()" function */ static void f_max(argvars, rettv) typval_T *argvars; typval_T *rettv; { max_min(argvars, rettv, TRUE); } /* * "min()" function */ static void f_min(argvars, rettv) typval_T *argvars; typval_T *rettv; { max_min(argvars, rettv, FALSE); } static int mkdir_recurse __ARGS((char_u *dir, int prot)); /* * Create the directory in which "dir" is located, and higher levels when * needed. */ static int mkdir_recurse(dir, prot) char_u *dir; int prot; { char_u *p; char_u *updir; int r = FAIL; /* Get end of directory name in "dir". * We're done when it's "/" or "c:/". */ p = gettail_sep(dir); if (p <= get_past_head(dir)) return OK; /* If the directory exists we're done. Otherwise: create it.*/ updir = vim_strnsave(dir, (int)(p - dir)); if (updir == NULL) return FAIL; if (mch_isdir(updir)) r = OK; else if (mkdir_recurse(updir, prot) == OK) r = vim_mkdir_emsg(updir, prot); vim_free(updir); return r; } #ifdef vim_mkdir /* * "mkdir()" function */ static void f_mkdir(argvars, rettv) typval_T *argvars; typval_T *rettv; { char_u *dir; char_u buf[NUMBUFLEN]; int prot = 0755; rettv->vval.v_number = FAIL; if (check_restricted() || check_secure()) return; dir = get_tv_string_buf(&argvars[0], buf); if (argvars[1].v_type != VAR_UNKNOWN) { if (argvars[2].v_type != VAR_UNKNOWN) prot = get_tv_number_chk(&argvars[2], NULL); if (prot != -1 && STRCMP(get_tv_string(&argvars[1]), "p") == 0) mkdir_recurse(dir, prot); } rettv->vval.v_number = prot != -1 ? vim_mkdir_emsg(dir, prot) : 0; } #endif /* * "mode()" function */ /*ARGSUSED*/ static void f_mode(argvars, rettv) typval_T *argvars; typval_T *rettv; { char_u buf[2]; #ifdef FEAT_VISUAL if (VIsual_active) { if (VIsual_select) buf[0] = VIsual_mode + 's' - 'v'; else buf[0] = VIsual_mode; } else #endif if (State == HITRETURN || State == ASKMORE || State == SETWSIZE) buf[0] = 'r'; else if (State & INSERT) { if (State & REPLACE_FLAG) buf[0] = 'R'; else buf[0] = 'i'; } else if (State & CMDLINE) buf[0] = 'c'; else buf[0] = 'n'; buf[1] = NUL; rettv->vval.v_string = vim_strsave(buf); rettv->v_type = VAR_STRING; } /* * "nextnonblank()" function */ static void f_nextnonblank(argvars, rettv) typval_T *argvars; typval_T *rettv; { linenr_T lnum; for (lnum = get_tv_lnum(argvars); ; ++lnum) { if (lnum < 0 || lnum > curbuf->b_ml.ml_line_count) { lnum = 0; break; } if (*skipwhite(ml_get(lnum)) != NUL) break; } rettv->vval.v_number = lnum; } /* * "nr2char()" function */ static void f_nr2char(argvars, rettv) typval_T *argvars; typval_T *rettv; { char_u buf[NUMBUFLEN]; #ifdef FEAT_MBYTE if (has_mbyte) buf[(*mb_char2bytes)((int)get_tv_number(&argvars[0]), buf)] = NUL; else #endif { buf[0] = (char_u)get_tv_number(&argvars[0]); buf[1] = NUL; } rettv->v_type = VAR_STRING; rettv->vval.v_string = vim_strsave(buf); } /* * "pathshorten()" function */ static void f_pathshorten(argvars, rettv) typval_T *argvars; typval_T *rettv; { char_u *p; rettv->v_type = VAR_STRING; p = get_tv_string_chk(&argvars[0]); if (p == NULL) rettv->vval.v_string = NULL; else { p = vim_strsave(p); rettv->vval.v_string = p; if (p != NULL) shorten_dir(p); } } /* * "prevnonblank()" function */ static void f_prevnonblank(argvars, rettv) typval_T *argvars; typval_T *rettv; { linenr_T lnum; lnum = get_tv_lnum(argvars); if (lnum < 1 || lnum > curbuf->b_ml.ml_line_count) lnum = 0; else while (lnum >= 1 && *skipwhite(ml_get(lnum)) == NUL) --lnum; rettv->vval.v_number = lnum; } #ifdef HAVE_STDARG_H /* This dummy va_list is here because: * - passing a NULL pointer doesn't work when va_list isn't a pointer * - locally in the function results in a "used before set" warning * - using va_start() to initialize it gives "function with fixed args" error */ static va_list ap; #endif /* * "printf()" function */ static void f_printf(argvars, rettv) typval_T *argvars; typval_T *rettv; { rettv->v_type = VAR_STRING; rettv->vval.v_string = NULL; #ifdef HAVE_STDARG_H /* only very old compilers can't do this */ { char_u buf[NUMBUFLEN]; int len; char_u *s; int saved_did_emsg = did_emsg; char *fmt; /* Get the required length, allocate the buffer and do it for real. */ did_emsg = FALSE; fmt = (char *)get_tv_string_buf(&argvars[0], buf); len = vim_vsnprintf(NULL, 0, fmt, ap, argvars + 1); if (!did_emsg) { s = alloc(len + 1); if (s != NULL) { rettv->vval.v_string = s; (void)vim_vsnprintf((char *)s, len + 1, fmt, ap, argvars + 1); } } did_emsg |= saved_did_emsg; } #endif } /* * "pumvisible()" function */ /*ARGSUSED*/ static void f_pumvisible(argvars, rettv) typval_T *argvars; typval_T *rettv; { rettv->vval.v_number = 0; #ifdef FEAT_INS_EXPAND if (pum_visible()) rettv->vval.v_number = 1; #endif } /* * "range()" function */ static void f_range(argvars, rettv) typval_T *argvars; typval_T *rettv; { long start; long end; long stride = 1; long i; int error = FALSE; start = get_tv_number_chk(&argvars[0], &error); if (argvars[1].v_type == VAR_UNKNOWN) { end = start - 1; start = 0; } else { end = get_tv_number_chk(&argvars[1], &error); if (argvars[2].v_type != VAR_UNKNOWN) stride = get_tv_number_chk(&argvars[2], &error); } rettv->vval.v_number = 0; if (error) return; /* type error; errmsg already given */ if (stride == 0) EMSG(_("E726: Stride is zero")); else if (stride > 0 ? end + 1 < start : end - 1 > start) EMSG(_("E727: Start past end")); else { if (rettv_list_alloc(rettv) == OK) for (i = start; stride > 0 ? i <= end : i >= end; i += stride) if (list_append_number(rettv->vval.v_list, (varnumber_T)i) == FAIL) break; } } /* * "readfile()" function */ static void f_readfile(argvars, rettv) typval_T *argvars; typval_T *rettv; { int binary = FALSE; char_u *fname; FILE *fd; listitem_T *li; #define FREAD_SIZE 200 /* optimized for text lines */ char_u buf[FREAD_SIZE]; int readlen; /* size of last fread() */ int buflen; /* nr of valid chars in buf[] */ int filtd; /* how much in buf[] was NUL -> '\n' filtered */ int tolist; /* first byte in buf[] still to be put in list */ int chop; /* how many CR to chop off */ char_u *prev = NULL; /* previously read bytes, if any */ int prevlen = 0; /* length of "prev" if not NULL */ char_u *s; int len; long maxline = MAXLNUM; long cnt = 0; if (argvars[1].v_type != VAR_UNKNOWN) { if (STRCMP(get_tv_string(&argvars[1]), "b") == 0) binary = TRUE; if (argvars[2].v_type != VAR_UNKNOWN) maxline = get_tv_number(&argvars[2]); } if (rettv_list_alloc(rettv) == FAIL) return; /* Always open the file in binary mode, library functions have a mind of * their own about CR-LF conversion. */ fname = get_tv_string(&argvars[0]); if (*fname == NUL || (fd = mch_fopen((char *)fname, READBIN)) == NULL) { EMSG2(_(e_notopen), *fname == NUL ? (char_u *)_("<empty>") : fname); return; } filtd = 0; while (cnt < maxline || maxline < 0) { readlen = (int)fread(buf + filtd, 1, FREAD_SIZE - filtd, fd); buflen = filtd + readlen; tolist = 0; for ( ; filtd < buflen || readlen <= 0; ++filtd) { if (buf[filtd] == '\n' || readlen <= 0) { /* Only when in binary mode add an empty list item when the * last line ends in a '\n'. */ if (!binary && readlen == 0 && filtd == 0) break; /* Found end-of-line or end-of-file: add a text line to the * list. */ chop = 0; if (!binary) while (filtd - chop - 1 >= tolist && buf[filtd - chop - 1] == '\r') ++chop; len = filtd - tolist - chop; if (prev == NULL) s = vim_strnsave(buf + tolist, len); else { s = alloc((unsigned)(prevlen + len + 1)); if (s != NULL) { mch_memmove(s, prev, prevlen); vim_free(prev); prev = NULL; mch_memmove(s + prevlen, buf + tolist, len); s[prevlen + len] = NUL; } } tolist = filtd + 1; li = listitem_alloc(); if (li == NULL) { vim_free(s); break; } li->li_tv.v_type = VAR_STRING; li->li_tv.v_lock = 0; li->li_tv.vval.v_string = s; list_append(rettv->vval.v_list, li); if (++cnt >= maxline && maxline >= 0) break; if (readlen <= 0) break; } else if (buf[filtd] == NUL) buf[filtd] = '\n'; } if (readlen <= 0) break; if (tolist == 0) { /* "buf" is full, need to move text to an allocated buffer */ if (prev == NULL) { prev = vim_strnsave(buf, buflen); prevlen = buflen; } else { s = alloc((unsigned)(prevlen + buflen)); if (s != NULL) { mch_memmove(s, prev, prevlen); mch_memmove(s + prevlen, buf, buflen); vim_free(prev); prev = s; prevlen += buflen; } } filtd = 0; } else { mch_memmove(buf, buf + tolist, buflen - tolist); filtd -= tolist; } } /* * For a negative line count use only the lines at the end of the file, * free the rest. */ if (maxline < 0) while (cnt > -maxline) { listitem_remove(rettv->vval.v_list, rettv->vval.v_list->lv_first); --cnt; } vim_free(prev); fclose(fd); } #if defined(FEAT_RELTIME) static int list2proftime __ARGS((typval_T *arg, proftime_T *tm)); /* * Convert a List to proftime_T. * Return FAIL when there is something wrong. */ static int list2proftime(arg, tm) typval_T *arg; proftime_T *tm; { long n1, n2; int error = FALSE; if (arg->v_type != VAR_LIST || arg->vval.v_list == NULL || arg->vval.v_list->lv_len != 2) return FAIL; n1 = list_find_nr(arg->vval.v_list, 0L, &error); n2 = list_find_nr(arg->vval.v_list, 1L, &error); # ifdef WIN3264 tm->HighPart = n1; tm->LowPart = n2; # else tm->tv_sec = n1; tm->tv_usec = n2; # endif return error ? FAIL : OK; } #endif /* FEAT_RELTIME */ /* * "reltime()" function */ static void f_reltime(argvars, rettv) typval_T *argvars; typval_T *rettv; { #ifdef FEAT_RELTIME proftime_T res; proftime_T start; if (argvars[0].v_type == VAR_UNKNOWN) { /* No arguments: get current time. */ profile_start(&res); } else if (argvars[1].v_type == VAR_UNKNOWN) { if (list2proftime(&argvars[0], &res) == FAIL) return; profile_end(&res); } else { /* Two arguments: compute the difference. */ if (list2proftime(&argvars[0], &start) == FAIL || list2proftime(&argvars[1], &res) == FAIL) return; profile_sub(&res, &start); } if (rettv_list_alloc(rettv) == OK) { long n1, n2; # ifdef WIN3264 n1 = res.HighPart; n2 = res.LowPart; # else n1 = res.tv_sec; n2 = res.tv_usec; # endif list_append_number(rettv->vval.v_list, (varnumber_T)n1); list_append_number(rettv->vval.v_list, (varnumber_T)n2); } #endif } /* * "reltimestr()" function */ static void f_reltimestr(argvars, rettv) typval_T *argvars; typval_T *rettv; { #ifdef FEAT_RELTIME proftime_T tm; #endif rettv->v_type = VAR_STRING; rettv->vval.v_string = NULL; #ifdef FEAT_RELTIME if (list2proftime(&argvars[0], &tm) == OK) rettv->vval.v_string = vim_strsave((char_u *)profile_msg(&tm)); #endif } #if defined(FEAT_CLIENTSERVER) && defined(FEAT_X11) static void make_connection __ARGS((void)); static int check_connection __ARGS((void)); static void make_connection() { if (X_DISPLAY == NULL # ifdef FEAT_GUI && !gui.in_use # endif ) { x_force_connect = TRUE; setup_term_clip(); x_force_connect = FALSE; } } static int check_connection() { make_connection(); if (X_DISPLAY == NULL) { EMSG(_("E240: No connection to Vim server")); return FAIL; } return OK; } #endif #ifdef FEAT_CLIENTSERVER static void remote_common __ARGS((typval_T *argvars, typval_T *rettv, int expr)); static void remote_common(argvars, rettv, expr) typval_T *argvars; typval_T *rettv; int expr; { char_u *server_name; char_u *keys; char_u *r = NULL; char_u buf[NUMBUFLEN]; # ifdef WIN32 HWND w; # else Window w; # endif if (check_restricted() || check_secure()) return; # ifdef FEAT_X11 if (check_connection() == FAIL) return; # endif server_name = get_tv_string_chk(&argvars[0]); if (server_name == NULL) return; /* type error; errmsg already given */ keys = get_tv_string_buf(&argvars[1], buf); # ifdef WIN32 if (serverSendToVim(server_name, keys, &r, &w, expr, TRUE) < 0) # else if (serverSendToVim(X_DISPLAY, server_name, keys, &r, &w, expr, 0, TRUE) < 0) # endif { if (r != NULL) EMSG(r); /* sending worked but evaluation failed */ else EMSG2(_("E241: Unable to send to %s"), server_name); return; } rettv->vval.v_string = r; if (argvars[2].v_type != VAR_UNKNOWN) { dictitem_T v; char_u str[30]; char_u *idvar; sprintf((char *)str, PRINTF_HEX_LONG_U, (long_u)w); v.di_tv.v_type = VAR_STRING; v.di_tv.vval.v_string = vim_strsave(str); idvar = get_tv_string_chk(&argvars[2]); if (idvar != NULL) set_var(idvar, &v.di_tv, FALSE); vim_free(v.di_tv.vval.v_string); } } #endif /* * "remote_expr()" function */ /*ARGSUSED*/ static void f_remote_expr(argvars, rettv) typval_T *argvars; typval_T *rettv; { rettv->v_type = VAR_STRING; rettv->vval.v_string = NULL; #ifdef FEAT_CLIENTSERVER remote_common(argvars, rettv, TRUE); #endif } /* * "remote_foreground()" function */ /*ARGSUSED*/ static void f_remote_foreground(argvars, rettv) typval_T *argvars; typval_T *rettv; { rettv->vval.v_number = 0; #ifdef FEAT_CLIENTSERVER # ifdef WIN32 /* On Win32 it's done in this application. */ { char_u *server_name = get_tv_string_chk(&argvars[0]); if (server_name != NULL) serverForeground(server_name); } # else /* Send a foreground() expression to the server. */ argvars[1].v_type = VAR_STRING; argvars[1].vval.v_string = vim_strsave((char_u *)"foreground()"); argvars[2].v_type = VAR_UNKNOWN; remote_common(argvars, rettv, TRUE); vim_free(argvars[1].vval.v_string); # endif #endif } /*ARGSUSED*/ static void f_remote_peek(argvars, rettv) typval_T *argvars; typval_T *rettv; { #ifdef FEAT_CLIENTSERVER dictitem_T v; char_u *s = NULL; # ifdef WIN32 long_u n = 0; # endif char_u *serverid; if (check_restricted() || check_secure()) { rettv->vval.v_number = -1; return; } serverid = get_tv_string_chk(&argvars[0]); if (serverid == NULL) { rettv->vval.v_number = -1; return; /* type error; errmsg already given */ } # ifdef WIN32 sscanf(serverid, SCANF_HEX_LONG_U, &n); if (n == 0) rettv->vval.v_number = -1; else { s = serverGetReply((HWND)n, FALSE, FALSE, FALSE); rettv->vval.v_number = (s != NULL); } # else rettv->vval.v_number = 0; if (check_connection() == FAIL) return; rettv->vval.v_number = serverPeekReply(X_DISPLAY, serverStrToWin(serverid), &s); # endif if (argvars[1].v_type != VAR_UNKNOWN && rettv->vval.v_number > 0) { char_u *retvar; v.di_tv.v_type = VAR_STRING; v.di_tv.vval.v_string = vim_strsave(s); retvar = get_tv_string_chk(&argvars[1]); if (retvar != NULL) set_var(retvar, &v.di_tv, FALSE); vim_free(v.di_tv.vval.v_string); } #else rettv->vval.v_number = -1; #endif } /*ARGSUSED*/ static void f_remote_read(argvars, rettv) typval_T *argvars; typval_T *rettv; { char_u *r = NULL; #ifdef FEAT_CLIENTSERVER char_u *serverid = get_tv_string_chk(&argvars[0]); if (serverid != NULL && !check_restricted() && !check_secure()) { # ifdef WIN32 /* The server's HWND is encoded in the 'id' parameter */ long_u n = 0; sscanf(serverid, SCANF_HEX_LONG_U, &n); if (n != 0) r = serverGetReply((HWND)n, FALSE, TRUE, TRUE); if (r == NULL) # else if (check_connection() == FAIL || serverReadReply(X_DISPLAY, serverStrToWin(serverid), &r, FALSE) < 0) # endif EMSG(_("E277: Unable to read a server reply")); } #endif rettv->v_type = VAR_STRING; rettv->vval.v_string = r; } /* * "remote_send()" function */ /*ARGSUSED*/ static void f_remote_send(argvars, rettv) typval_T *argvars; typval_T *rettv; { rettv->v_type = VAR_STRING; rettv->vval.v_string = NULL; #ifdef FEAT_CLIENTSERVER remote_common(argvars, rettv, FALSE); #endif } /* * "remove()" function */ static void f_remove(argvars, rettv) typval_T *argvars; typval_T *rettv; { list_T *l; listitem_T *item, *item2; listitem_T *li; long idx; long end; char_u *key; dict_T *d; dictitem_T *di; rettv->vval.v_number = 0; if (argvars[0].v_type == VAR_DICT) { if (argvars[2].v_type != VAR_UNKNOWN) EMSG2(_(e_toomanyarg), "remove()"); else if ((d = argvars[0].vval.v_dict) != NULL && !tv_check_lock(d->dv_lock, (char_u *)"remove() argument")) { key = get_tv_string_chk(&argvars[1]); if (key != NULL) { di = dict_find(d, key, -1); if (di == NULL) EMSG2(_(e_dictkey), key); else { *rettv = di->di_tv; init_tv(&di->di_tv); dictitem_remove(d, di); } } } } else if (argvars[0].v_type != VAR_LIST) EMSG2(_(e_listdictarg), "remove()"); else if ((l = argvars[0].vval.v_list) != NULL && !tv_check_lock(l->lv_lock, (char_u *)"remove() argument")) { int error = FALSE; idx = get_tv_number_chk(&argvars[1], &error); if (error) ; /* type error: do nothing, errmsg already given */ else if ((item = list_find(l, idx)) == NULL) EMSGN(_(e_listidx), idx); else { if (argvars[2].v_type == VAR_UNKNOWN) { /* Remove one item, return its value. */ list_remove(l, item, item); *rettv = item->li_tv; vim_free(item); } else { /* Remove range of items, return list with values. */ end = get_tv_number_chk(&argvars[2], &error); if (error) ; /* type error: do nothing */ else if ((item2 = list_find(l, end)) == NULL) EMSGN(_(e_listidx), end); else { int cnt = 0; for (li = item; li != NULL; li = li->li_next) { ++cnt; if (li == item2) break; } if (li == NULL) /* didn't find "item2" after "item" */ EMSG(_(e_invrange)); else { list_remove(l, item, item2); if (rettv_list_alloc(rettv) == OK) { l = rettv->vval.v_list; l->lv_first = item; l->lv_last = item2; item->li_prev = NULL; item2->li_next = NULL; l->lv_len = cnt; } } } } } } } /* * "rename({from}, {to})" function */ static void f_rename(argvars, rettv) typval_T *argvars; typval_T *rettv; { char_u buf[NUMBUFLEN]; if (check_restricted() || check_secure()) rettv->vval.v_number = -1; else rettv->vval.v_number = vim_rename(get_tv_string(&argvars[0]), get_tv_string_buf(&argvars[1], buf)); } /* * "repeat()" function */ /*ARGSUSED*/ static void f_repeat(argvars, rettv) typval_T *argvars; typval_T *rettv; { char_u *p; int n; int slen; int len; char_u *r; int i; n = get_tv_number(&argvars[1]); if (argvars[0].v_type == VAR_LIST) { if (rettv_list_alloc(rettv) == OK && argvars[0].vval.v_list != NULL) while (n-- > 0) if (list_extend(rettv->vval.v_list, argvars[0].vval.v_list, NULL) == FAIL) break; } else { p = get_tv_string(&argvars[0]); rettv->v_type = VAR_STRING; rettv->vval.v_string = NULL; slen = (int)STRLEN(p); len = slen * n; if (len <= 0) return; r = alloc(len + 1); if (r != NULL) { for (i = 0; i < n; i++) mch_memmove(r + i * slen, p, (size_t)slen); r[len] = NUL; } rettv->vval.v_string = r; } } /* * "resolve()" function */ static void f_resolve(argvars, rettv) typval_T *argvars; typval_T *rettv; { char_u *p; p = get_tv_string(&argvars[0]); #ifdef FEAT_SHORTCUT { char_u *v = NULL; v = mch_resolve_shortcut(p); if (v != NULL) rettv->vval.v_string = v; else rettv->vval.v_string = vim_strsave(p); } #else # ifdef HAVE_READLINK { char_u buf[MAXPATHL + 1]; char_u *cpy; int len; char_u *remain = NULL; char_u *q; int is_relative_to_current = FALSE; int has_trailing_pathsep = FALSE; int limit = 100; p = vim_strsave(p); if (p[0] == '.' && (vim_ispathsep(p[1]) || (p[1] == '.' && (vim_ispathsep(p[2]))))) is_relative_to_current = TRUE; len = STRLEN(p); if (len > 0 && after_pathsep(p, p + len)) has_trailing_pathsep = TRUE; q = getnextcomp(p); if (*q != NUL) { /* Separate the first path component in "p", and keep the * remainder (beginning with the path separator). */ remain = vim_strsave(q - 1); q[-1] = NUL; } for (;;) { for (;;) { len = readlink((char *)p, (char *)buf, MAXPATHL); if (len <= 0) break; buf[len] = NUL; if (limit-- == 0) { vim_free(p); vim_free(remain); EMSG(_("E655: Too many symbolic links (cycle?)")); rettv->vval.v_string = NULL; goto fail; } /* Ensure that the result will have a trailing path separator * if the argument has one. */ if (remain == NULL && has_trailing_pathsep) add_pathsep(buf); /* Separate the first path component in the link value and * concatenate the remainders. */ q = getnextcomp(vim_ispathsep(*buf) ? buf + 1 : buf); if (*q != NUL) { if (remain == NULL) remain = vim_strsave(q - 1); else { cpy = concat_str(q - 1, remain); if (cpy != NULL) { vim_free(remain); remain = cpy; } } q[-1] = NUL; } q = gettail(p); if (q > p && *q == NUL) { /* Ignore trailing path separator. */ q[-1] = NUL; q = gettail(p); } if (q > p && !mch_isFullName(buf)) { /* symlink is relative to directory of argument */ cpy = alloc((unsigned)(STRLEN(p) + STRLEN(buf) + 1)); if (cpy != NULL) { STRCPY(cpy, p); STRCPY(gettail(cpy), buf); vim_free(p); p = cpy; } } else { vim_free(p); p = vim_strsave(buf); } } if (remain == NULL) break; /* Append the first path component of "remain" to "p". */ q = getnextcomp(remain + 1); len = q - remain - (*q != NUL); cpy = vim_strnsave(p, STRLEN(p) + len); if (cpy != NULL) { STRNCAT(cpy, remain, len); vim_free(p); p = cpy; } /* Shorten "remain". */ if (*q != NUL) STRCPY(remain, q - 1); else { vim_free(remain); remain = NULL; } } /* If the result is a relative path name, make it explicitly relative to * the current directory if and only if the argument had this form. */ if (!vim_ispathsep(*p)) { if (is_relative_to_current && *p != NUL && !(p[0] == '.' && (p[1] == NUL || vim_ispathsep(p[1]) || (p[1] == '.' && (p[2] == NUL || vim_ispathsep(p[2])))))) { /* Prepend "./". */ cpy = concat_str((char_u *)"./", p); if (cpy != NULL) { vim_free(p); p = cpy; } } else if (!is_relative_to_current) { /* Strip leading "./". */ q = p; while (q[0] == '.' && vim_ispathsep(q[1])) q += 2; if (q > p) mch_memmove(p, p + 2, STRLEN(p + 2) + (size_t)1); } } /* Ensure that the result will have no trailing path separator * if the argument had none. But keep "/" or "//". */ if (!has_trailing_pathsep) { q = p + STRLEN(p); if (after_pathsep(p, q)) *gettail_sep(p) = NUL; } rettv->vval.v_string = p; } # else rettv->vval.v_string = vim_strsave(p); # endif #endif simplify_filename(rettv->vval.v_string); #ifdef HAVE_READLINK fail: #endif rettv->v_type = VAR_STRING; } /* * "reverse({list})" function */ static void f_reverse(argvars, rettv) typval_T *argvars; typval_T *rettv; { list_T *l; listitem_T *li, *ni; rettv->vval.v_number = 0; if (argvars[0].v_type != VAR_LIST) EMSG2(_(e_listarg), "reverse()"); else if ((l = argvars[0].vval.v_list) != NULL && !tv_check_lock(l->lv_lock, (char_u *)"reverse()")) { li = l->lv_last; l->lv_first = l->lv_last = NULL; l->lv_len = 0; while (li != NULL) { ni = li->li_prev; list_append(l, li); li = ni; } rettv->vval.v_list = l; rettv->v_type = VAR_LIST; ++l->lv_refcount; } } #define SP_NOMOVE 0x01 /* don't move cursor */ #define SP_REPEAT 0x02 /* repeat to find outer pair */ #define SP_RETCOUNT 0x04 /* return matchcount */ #define SP_SETPCMARK 0x08 /* set previous context mark */ #define SP_START 0x10 /* accept match at start position */ #define SP_SUBPAT 0x20 /* return nr of matching sub-pattern */ #define SP_END 0x40 /* leave cursor at end of match */ static int get_search_arg __ARGS((typval_T *varp, int *flagsp)); /* * Get flags for a search function. * Possibly sets "p_ws". * Returns BACKWARD, FORWARD or zero (for an error). */ static int get_search_arg(varp, flagsp) typval_T *varp; int *flagsp; { int dir = FORWARD; char_u *flags; char_u nbuf[NUMBUFLEN]; int mask; if (varp->v_type != VAR_UNKNOWN) { flags = get_tv_string_buf_chk(varp, nbuf); if (flags == NULL) return 0; /* type error; errmsg already given */ while (*flags != NUL) { switch (*flags) { case 'b': dir = BACKWARD; break; case 'w': p_ws = TRUE; break; case 'W': p_ws = FALSE; break; default: mask = 0; if (flagsp != NULL) switch (*flags) { case 'c': mask = SP_START; break; case 'e': mask = SP_END; break; case 'm': mask = SP_RETCOUNT; break; case 'n': mask = SP_NOMOVE; break; case 'p': mask = SP_SUBPAT; break; case 'r': mask = SP_REPEAT; break; case 's': mask = SP_SETPCMARK; break; } if (mask == 0) { EMSG2(_(e_invarg2), flags); dir = 0; } else *flagsp |= mask; } if (dir == 0) break; ++flags; } } return dir; } /* * Shared by search() and searchpos() functions */ static int search_cmn(argvars, match_pos, flagsp) typval_T *argvars; pos_T *match_pos; int *flagsp; { int flags; char_u *pat; pos_T pos; pos_T save_cursor; int save_p_ws = p_ws; int dir; int retval = 0; /* default: FAIL */ long lnum_stop = 0; int options = SEARCH_KEEP; int subpatnum; pat = get_tv_string(&argvars[0]); dir = get_search_arg(&argvars[1], flagsp); /* may set p_ws */ if (dir == 0) goto theend; flags = *flagsp; if (flags & SP_START) options |= SEARCH_START; if (flags & SP_END) options |= SEARCH_END; /* Optional extra argument: line number to stop searching. */ if (argvars[1].v_type != VAR_UNKNOWN && argvars[2].v_type != VAR_UNKNOWN) { lnum_stop = get_tv_number_chk(&argvars[2], NULL); if (lnum_stop < 0) goto theend; } /* * This function does not accept SP_REPEAT and SP_RETCOUNT flags. * Check to make sure only those flags are set. * Also, Only the SP_NOMOVE or the SP_SETPCMARK flag can be set. Both * flags cannot be set. Check for that condition also. */ if (((flags & (SP_REPEAT | SP_RETCOUNT)) != 0) || ((flags & SP_NOMOVE) && (flags & SP_SETPCMARK))) { EMSG2(_(e_invarg2), get_tv_string(&argvars[1])); goto theend; } pos = save_cursor = curwin->w_cursor; subpatnum = searchit(curwin, curbuf, &pos, dir, pat, 1L, options, RE_SEARCH, (linenr_T)lnum_stop); if (subpatnum != FAIL) { if (flags & SP_SUBPAT) retval = subpatnum; else retval = pos.lnum; if (flags & SP_SETPCMARK) setpcmark(); curwin->w_cursor = pos; if (match_pos != NULL) { /* Store the match cursor position */ match_pos->lnum = pos.lnum; match_pos->col = pos.col + 1; } /* "/$" will put the cursor after the end of the line, may need to * correct that here */ check_cursor(); } /* If 'n' flag is used: restore cursor position. */ if (flags & SP_NOMOVE) curwin->w_cursor = save_cursor; theend: p_ws = save_p_ws; return retval; } /* * "search()" function */ static void f_search(argvars, rettv) typval_T *argvars; typval_T *rettv; { int flags = 0; rettv->vval.v_number = search_cmn(argvars, NULL, &flags); } /* * "searchdecl()" function */ static void f_searchdecl(argvars, rettv) typval_T *argvars; typval_T *rettv; { int locally = 1; int thisblock = 0; int error = FALSE; char_u *name; rettv->vval.v_number = 1; /* default: FAIL */ name = get_tv_string_chk(&argvars[0]); if (argvars[1].v_type != VAR_UNKNOWN) { locally = get_tv_number_chk(&argvars[1], &error) == 0; if (!error && argvars[2].v_type != VAR_UNKNOWN) thisblock = get_tv_number_chk(&argvars[2], &error) != 0; } if (!error && name != NULL) rettv->vval.v_number = find_decl(name, (int)STRLEN(name), locally, thisblock, SEARCH_KEEP) == FAIL; } /* * Used by searchpair() and searchpairpos() */ static int searchpair_cmn(argvars, match_pos) typval_T *argvars; pos_T *match_pos; { char_u *spat, *mpat, *epat; char_u *skip; int save_p_ws = p_ws; int dir; int flags = 0; char_u nbuf1[NUMBUFLEN]; char_u nbuf2[NUMBUFLEN]; char_u nbuf3[NUMBUFLEN]; int retval = 0; /* default: FAIL */ long lnum_stop = 0; /* Get the three pattern arguments: start, middle, end. */ spat = get_tv_string_chk(&argvars[0]); mpat = get_tv_string_buf_chk(&argvars[1], nbuf1); epat = get_tv_string_buf_chk(&argvars[2], nbuf2); if (spat == NULL || mpat == NULL || epat == NULL) goto theend; /* type error */ /* Handle the optional fourth argument: flags */ dir = get_search_arg(&argvars[3], &flags); /* may set p_ws */ if (dir == 0) goto theend; /* Don't accept SP_END or SP_SUBPAT. * Only one of the SP_NOMOVE or SP_SETPCMARK flags can be set. */ if ((flags & (SP_END | SP_SUBPAT)) != 0 || ((flags & SP_NOMOVE) && (flags & SP_SETPCMARK))) { EMSG2(_(e_invarg2), get_tv_string(&argvars[3])); goto theend; } /* Optional fifth argument: skip expression */ if (argvars[3].v_type == VAR_UNKNOWN || argvars[4].v_type == VAR_UNKNOWN) skip = (char_u *)""; else { skip = get_tv_string_buf_chk(&argvars[4], nbuf3); if (argvars[5].v_type != VAR_UNKNOWN) { lnum_stop = get_tv_number_chk(&argvars[5], NULL); if (lnum_stop < 0) goto theend; } } if (skip == NULL) goto theend; /* type error */ retval = do_searchpair(spat, mpat, epat, dir, skip, flags, match_pos, lnum_stop); theend: p_ws = save_p_ws; return retval; } /* * "searchpair()" function */ static void f_searchpair(argvars, rettv) typval_T *argvars; typval_T *rettv; { rettv->vval.v_number = searchpair_cmn(argvars, NULL); } /* * "searchpairpos()" function */ static void f_searchpairpos(argvars, rettv) typval_T *argvars; typval_T *rettv; { pos_T match_pos; int lnum = 0; int col = 0; rettv->vval.v_number = 0; if (rettv_list_alloc(rettv) == FAIL) return; if (searchpair_cmn(argvars, &match_pos) > 0) { lnum = match_pos.lnum; col = match_pos.col; } list_append_number(rettv->vval.v_list, (varnumber_T)lnum); list_append_number(rettv->vval.v_list, (varnumber_T)col); } /* * Search for a start/middle/end thing. * Used by searchpair(), see its documentation for the details. * Returns 0 or -1 for no match, */ long do_searchpair(spat, mpat, epat, dir, skip, flags, match_pos, lnum_stop) char_u *spat; /* start pattern */ char_u *mpat; /* middle pattern */ char_u *epat; /* end pattern */ int dir; /* BACKWARD or FORWARD */ char_u *skip; /* skip expression */ int flags; /* SP_SETPCMARK and other SP_ values */ pos_T *match_pos; linenr_T lnum_stop; /* stop at this line if not zero */ { char_u *save_cpo; char_u *pat, *pat2 = NULL, *pat3 = NULL; long retval = 0; pos_T pos; pos_T firstpos; pos_T foundpos; pos_T save_cursor; pos_T save_pos; int n; int r; int nest = 1; int err; int options = SEARCH_KEEP; /* Make 'cpoptions' empty, the 'l' flag should not be used here. */ save_cpo = p_cpo; p_cpo = (char_u *)""; /* Make two search patterns: start/end (pat2, for in nested pairs) and * start/middle/end (pat3, for the top pair). */ pat2 = alloc((unsigned)(STRLEN(spat) + STRLEN(epat) + 15)); pat3 = alloc((unsigned)(STRLEN(spat) + STRLEN(mpat) + STRLEN(epat) + 23)); if (pat2 == NULL || pat3 == NULL) goto theend; sprintf((char *)pat2, "\\(%s\\m\\)\\|\\(%s\\m\\)", spat, epat); if (*mpat == NUL) STRCPY(pat3, pat2); else sprintf((char *)pat3, "\\(%s\\m\\)\\|\\(%s\\m\\)\\|\\(%s\\m\\)", spat, epat, mpat); if (flags & SP_START) options |= SEARCH_START; save_cursor = curwin->w_cursor; pos = curwin->w_cursor; clearpos(&firstpos); clearpos(&foundpos); pat = pat3; for (;;) { n = searchit(curwin, curbuf, &pos, dir, pat, 1L, options, RE_SEARCH, lnum_stop); if (n == FAIL || (firstpos.lnum != 0 && equalpos(pos, firstpos))) /* didn't find it or found the first match again: FAIL */ break; if (firstpos.lnum == 0) firstpos = pos; if (equalpos(pos, foundpos)) { /* Found the same position again. Can happen with a pattern that * has "\zs" at the end and searching backwards. Advance one * character and try again. */ if (dir == BACKWARD) decl(&pos); else incl(&pos); } foundpos = pos; /* If the skip pattern matches, ignore this match. */ if (*skip != NUL) { save_pos = curwin->w_cursor; curwin->w_cursor = pos; r = eval_to_bool(skip, &err, NULL, FALSE); curwin->w_cursor = save_pos; if (err) { /* Evaluating {skip} caused an error, break here. */ curwin->w_cursor = save_cursor; retval = -1; break; } if (r) continue; } if ((dir == BACKWARD && n == 3) || (dir == FORWARD && n == 2)) { /* Found end when searching backwards or start when searching * forward: nested pair. */ ++nest; pat = pat2; /* nested, don't search for middle */ } else { /* Found end when searching forward or start when searching * backward: end of (nested) pair; or found middle in outer pair. */ if (--nest == 1) pat = pat3; /* outer level, search for middle */ } if (nest == 0) { /* Found the match: return matchcount or line number. */ if (flags & SP_RETCOUNT) ++retval; else retval = pos.lnum; if (flags & SP_SETPCMARK) setpcmark(); curwin->w_cursor = pos; if (!(flags & SP_REPEAT)) break; nest = 1; /* search for next unmatched */ } } if (match_pos != NULL) { /* Store the match cursor position */ match_pos->lnum = curwin->w_cursor.lnum; match_pos->col = curwin->w_cursor.col + 1; } /* If 'n' flag is used or search failed: restore cursor position. */ if ((flags & SP_NOMOVE) || retval == 0) curwin->w_cursor = save_cursor; theend: vim_free(pat2); vim_free(pat3); p_cpo = save_cpo; return retval; } /* * "searchpos()" function */ static void f_searchpos(argvars, rettv) typval_T *argvars; typval_T *rettv; { pos_T match_pos; int lnum = 0; int col = 0; int n; int flags = 0; rettv->vval.v_number = 0; if (rettv_list_alloc(rettv) == FAIL) return; n = search_cmn(argvars, &match_pos, &flags); if (n > 0) { lnum = match_pos.lnum; col = match_pos.col; } list_append_number(rettv->vval.v_list, (varnumber_T)lnum); list_append_number(rettv->vval.v_list, (varnumber_T)col); if (flags & SP_SUBPAT) list_append_number(rettv->vval.v_list, (varnumber_T)n); } /*ARGSUSED*/ static void f_server2client(argvars, rettv) typval_T *argvars; typval_T *rettv; { #ifdef FEAT_CLIENTSERVER char_u buf[NUMBUFLEN]; char_u *server = get_tv_string_chk(&argvars[0]); char_u *reply = get_tv_string_buf_chk(&argvars[1], buf); rettv->vval.v_number = -1; if (server == NULL || reply == NULL) return; if (check_restricted() || check_secure()) return; # ifdef FEAT_X11 if (check_connection() == FAIL) return; # endif if (serverSendReply(server, reply) < 0) { EMSG(_("E258: Unable to send to client")); return; } rettv->vval.v_number = 0; #else rettv->vval.v_number = -1; #endif } /*ARGSUSED*/ static void f_serverlist(argvars, rettv) typval_T *argvars; typval_T *rettv; { char_u *r = NULL; #ifdef FEAT_CLIENTSERVER # ifdef WIN32 r = serverGetVimNames(); # else make_connection(); if (X_DISPLAY != NULL) r = serverGetVimNames(X_DISPLAY); # endif #endif rettv->v_type = VAR_STRING; rettv->vval.v_string = r; } /* * "setbufvar()" function */ /*ARGSUSED*/ static void f_setbufvar(argvars, rettv) typval_T *argvars; typval_T *rettv; { buf_T *buf; aco_save_T aco; char_u *varname, *bufvarname; typval_T *varp; char_u nbuf[NUMBUFLEN]; rettv->vval.v_number = 0; if (check_restricted() || check_secure()) return; (void)get_tv_number(&argvars[0]); /* issue errmsg if type error */ varname = get_tv_string_chk(&argvars[1]); buf = get_buf_tv(&argvars[0]); varp = &argvars[2]; if (buf != NULL && varname != NULL && varp != NULL) { /* set curbuf to be our buf, temporarily */ aucmd_prepbuf(&aco, buf); if (*varname == '&') { long numval; char_u *strval; int error = FALSE; ++varname; numval = get_tv_number_chk(varp, &error); strval = get_tv_string_buf_chk(varp, nbuf); if (!error && strval != NULL) set_option_value(varname, numval, strval, OPT_LOCAL); } else { bufvarname = alloc((unsigned)STRLEN(varname) + 3); if (bufvarname != NULL) { STRCPY(bufvarname, "b:"); STRCPY(bufvarname + 2, varname); set_var(bufvarname, varp, TRUE); vim_free(bufvarname); } } /* reset notion of buffer */ aucmd_restbuf(&aco); } } /* * "setcmdpos()" function */ static void f_setcmdpos(argvars, rettv) typval_T *argvars; typval_T *rettv; { int pos = (int)get_tv_number(&argvars[0]) - 1; if (pos >= 0) rettv->vval.v_number = set_cmdline_pos(pos); } /* * "setline()" function */ static void f_setline(argvars, rettv) typval_T *argvars; typval_T *rettv; { linenr_T lnum; char_u *line = NULL; list_T *l = NULL; listitem_T *li = NULL; long added = 0; linenr_T lcount = curbuf->b_ml.ml_line_count; lnum = get_tv_lnum(&argvars[0]); if (argvars[1].v_type == VAR_LIST) { l = argvars[1].vval.v_list; li = l->lv_first; } else line = get_tv_string_chk(&argvars[1]); rettv->vval.v_number = 0; /* OK */ for (;;) { if (l != NULL) { /* list argument, get next string */ if (li == NULL) break; line = get_tv_string_chk(&li->li_tv); li = li->li_next; } rettv->vval.v_number = 1; /* FAIL */ if (line == NULL || lnum < 1 || lnum > curbuf->b_ml.ml_line_count + 1) break; if (lnum <= curbuf->b_ml.ml_line_count) { /* existing line, replace it */ if (u_savesub(lnum) == OK && ml_replace(lnum, line, TRUE) == OK) { changed_bytes(lnum, 0); if (lnum == curwin->w_cursor.lnum) check_cursor_col(); rettv->vval.v_number = 0; /* OK */ } } else if (added > 0 || u_save(lnum - 1, lnum) == OK) { /* lnum is one past the last line, append the line */ ++added; if (ml_append(lnum - 1, line, (colnr_T)0, FALSE) == OK) rettv->vval.v_number = 0; /* OK */ } if (l == NULL) /* only one string argument */ break; ++lnum; } if (added > 0) appended_lines_mark(lcount, added); } /* * Used by "setqflist()" and "setloclist()" functions */ /*ARGSUSED*/ static void set_qf_ll_list(wp, list_arg, action_arg, rettv) win_T *wp; typval_T *list_arg; typval_T *action_arg; typval_T *rettv; { #ifdef FEAT_QUICKFIX char_u *act; int action = ' '; #endif rettv->vval.v_number = -1; #ifdef FEAT_QUICKFIX if (list_arg->v_type != VAR_LIST) EMSG(_(e_listreq)); else { list_T *l = list_arg->vval.v_list; if (action_arg->v_type == VAR_STRING) { act = get_tv_string_chk(action_arg); if (act == NULL) return; /* type error; errmsg already given */ if (*act == 'a' || *act == 'r') action = *act; } if (l != NULL && set_errorlist(wp, l, action) == OK) rettv->vval.v_number = 0; } #endif } /* * "setloclist()" function */ /*ARGSUSED*/ static void f_setloclist(argvars, rettv) typval_T *argvars; typval_T *rettv; { win_T *win; rettv->vval.v_number = -1; win = find_win_by_nr(&argvars[0], NULL); if (win != NULL) set_qf_ll_list(win, &argvars[1], &argvars[2], rettv); } /* * "setpos()" function */ /*ARGSUSED*/ static void f_setpos(argvars, rettv) typval_T *argvars; typval_T *rettv; { pos_T pos; int fnum; char_u *name; name = get_tv_string_chk(argvars); if (name != NULL) { if (list2fpos(&argvars[1], &pos, &fnum) == OK) { --pos.col; if (name[0] == '.') /* cursor */ { if (fnum == curbuf->b_fnum) { curwin->w_cursor = pos; check_cursor(); } else EMSG(_(e_invarg)); } else if (name[0] == '\'') /* mark */ (void)setmark_pos(name[1], &pos, fnum); else EMSG(_(e_invarg)); } } } /* * "setqflist()" function */ /*ARGSUSED*/ static void f_setqflist(argvars, rettv) typval_T *argvars; typval_T *rettv; { set_qf_ll_list(NULL, &argvars[0], &argvars[1], rettv); } /* * "setreg()" function */ static void f_setreg(argvars, rettv) typval_T *argvars; typval_T *rettv; { int regname; char_u *strregname; char_u *stropt; char_u *strval; int append; char_u yank_type; long block_len; block_len = -1; yank_type = MAUTO; append = FALSE; strregname = get_tv_string_chk(argvars); rettv->vval.v_number = 1; /* FAIL is default */ if (strregname == NULL) return; /* type error; errmsg already given */ regname = *strregname; if (regname == 0 || regname == '@') regname = '"'; else if (regname == '=') return; if (argvars[2].v_type != VAR_UNKNOWN) { stropt = get_tv_string_chk(&argvars[2]); if (stropt == NULL) return; /* type error */ for (; *stropt != NUL; ++stropt) switch (*stropt) { case 'a': case 'A': /* append */ append = TRUE; break; case 'v': case 'c': /* character-wise selection */ yank_type = MCHAR; break; case 'V': case 'l': /* line-wise selection */ yank_type = MLINE; break; #ifdef FEAT_VISUAL case 'b': case Ctrl_V: /* block-wise selection */ yank_type = MBLOCK; if (VIM_ISDIGIT(stropt[1])) { ++stropt; block_len = getdigits(&stropt) - 1; --stropt; } break; #endif } } strval = get_tv_string_chk(&argvars[1]); if (strval != NULL) write_reg_contents_ex(regname, strval, -1, append, yank_type, block_len); rettv->vval.v_number = 0; } /* * "settabwinvar()" function */ static void f_settabwinvar(argvars, rettv) typval_T *argvars; typval_T *rettv; { setwinvar(argvars, rettv, 1); } /* * "setwinvar()" function */ static void f_setwinvar(argvars, rettv) typval_T *argvars; typval_T *rettv; { setwinvar(argvars, rettv, 0); } /* * "setwinvar()" and "settabwinvar()" functions */ static void setwinvar(argvars, rettv, off) typval_T *argvars; typval_T *rettv; int off; { win_T *win; #ifdef FEAT_WINDOWS win_T *save_curwin; tabpage_T *save_curtab; #endif char_u *varname, *winvarname; typval_T *varp; char_u nbuf[NUMBUFLEN]; tabpage_T *tp; rettv->vval.v_number = 0; if (check_restricted() || check_secure()) return; #ifdef FEAT_WINDOWS if (off == 1) tp = find_tabpage((int)get_tv_number_chk(&argvars[0], NULL)); else tp = curtab; #endif win = find_win_by_nr(&argvars[off], tp); varname = get_tv_string_chk(&argvars[off + 1]); varp = &argvars[off + 2]; if (win != NULL && varname != NULL && varp != NULL) { #ifdef FEAT_WINDOWS /* set curwin to be our win, temporarily */ save_curwin = curwin; save_curtab = curtab; goto_tabpage_tp(tp); if (!win_valid(win)) return; curwin = win; curbuf = curwin->w_buffer; #endif if (*varname == '&') { long numval; char_u *strval; int error = FALSE; ++varname; numval = get_tv_number_chk(varp, &error); strval = get_tv_string_buf_chk(varp, nbuf); if (!error && strval != NULL) set_option_value(varname, numval, strval, OPT_LOCAL); } else { winvarname = alloc((unsigned)STRLEN(varname) + 3); if (winvarname != NULL) { STRCPY(winvarname, "w:"); STRCPY(winvarname + 2, varname); set_var(winvarname, varp, TRUE); vim_free(winvarname); } } #ifdef FEAT_WINDOWS /* Restore current tabpage and window, if still valid (autocomands can * make them invalid). */ if (valid_tabpage(save_curtab)) goto_tabpage_tp(save_curtab); if (win_valid(save_curwin)) { curwin = save_curwin; curbuf = curwin->w_buffer; } #endif } } /* * "shellescape({string})" function */ static void f_shellescape(argvars, rettv) typval_T *argvars; typval_T *rettv; { rettv->vval.v_string = vim_strsave_shellescape(get_tv_string(&argvars[0])); rettv->v_type = VAR_STRING; } /* * "simplify()" function */ static void f_simplify(argvars, rettv) typval_T *argvars; typval_T *rettv; { char_u *p; p = get_tv_string(&argvars[0]); rettv->vval.v_string = vim_strsave(p); simplify_filename(rettv->vval.v_string); /* simplify in place */ rettv->v_type = VAR_STRING; } static int #ifdef __BORLANDC__ _RTLENTRYF #endif item_compare __ARGS((const void *s1, const void *s2)); static int #ifdef __BORLANDC__ _RTLENTRYF #endif item_compare2 __ARGS((const void *s1, const void *s2)); static int item_compare_ic; static char_u *item_compare_func; static int item_compare_func_err; #define ITEM_COMPARE_FAIL 999 /* * Compare functions for f_sort() below. */ static int #ifdef __BORLANDC__ _RTLENTRYF #endif item_compare(s1, s2) const void *s1; const void *s2; { char_u *p1, *p2; char_u *tofree1, *tofree2; int res; char_u numbuf1[NUMBUFLEN]; char_u numbuf2[NUMBUFLEN]; p1 = tv2string(&(*(listitem_T **)s1)->li_tv, &tofree1, numbuf1, 0); p2 = tv2string(&(*(listitem_T **)s2)->li_tv, &tofree2, numbuf2, 0); if (item_compare_ic) res = STRICMP(p1, p2); else res = STRCMP(p1, p2); vim_free(tofree1); vim_free(tofree2); return res; } static int #ifdef __BORLANDC__ _RTLENTRYF #endif item_compare2(s1, s2) const void *s1; const void *s2; { int res; typval_T rettv; typval_T argv[3]; int dummy; /* shortcut after failure in previous call; compare all items equal */ if (item_compare_func_err) return 0; /* copy the values. This is needed to be able to set v_lock to VAR_FIXED * in the copy without changing the original list items. */ copy_tv(&(*(listitem_T **)s1)->li_tv, &argv[0]); copy_tv(&(*(listitem_T **)s2)->li_tv, &argv[1]); rettv.v_type = VAR_UNKNOWN; /* clear_tv() uses this */ res = call_func(item_compare_func, (int)STRLEN(item_compare_func), &rettv, 2, argv, 0L, 0L, &dummy, TRUE, NULL); clear_tv(&argv[0]); clear_tv(&argv[1]); if (res == FAIL) res = ITEM_COMPARE_FAIL; else /* return value has wrong type */ res = get_tv_number_chk(&rettv, &item_compare_func_err); if (item_compare_func_err) res = ITEM_COMPARE_FAIL; clear_tv(&rettv); return res; } /* * "sort({list})" function */ static void f_sort(argvars, rettv) typval_T *argvars; typval_T *rettv; { list_T *l; listitem_T *li; listitem_T **ptrs; long len; long i; rettv->vval.v_number = 0; if (argvars[0].v_type != VAR_LIST) EMSG2(_(e_listarg), "sort()"); else { l = argvars[0].vval.v_list; if (l == NULL || tv_check_lock(l->lv_lock, (char_u *)"sort()")) return; rettv->vval.v_list = l; rettv->v_type = VAR_LIST; ++l->lv_refcount; len = list_len(l); if (len <= 1) return; /* short list sorts pretty quickly */ item_compare_ic = FALSE; item_compare_func = NULL; if (argvars[1].v_type != VAR_UNKNOWN) { if (argvars[1].v_type == VAR_FUNC) item_compare_func = argvars[1].vval.v_string; else { int error = FALSE; i = get_tv_number_chk(&argvars[1], &error); if (error) return; /* type error; errmsg already given */ if (i == 1) item_compare_ic = TRUE; else item_compare_func = get_tv_string(&argvars[1]); } } /* Make an array with each entry pointing to an item in the List. */ ptrs = (listitem_T **)alloc((int)(len * sizeof(listitem_T *))); if (ptrs == NULL) return; i = 0; for (li = l->lv_first; li != NULL; li = li->li_next) ptrs[i++] = li; item_compare_func_err = FALSE; /* test the compare function */ if (item_compare_func != NULL && item_compare2((void *)&ptrs[0], (void *)&ptrs[1]) == ITEM_COMPARE_FAIL) EMSG(_("E702: Sort compare function failed")); else { /* Sort the array with item pointers. */ qsort((void *)ptrs, (size_t)len, sizeof(listitem_T *), item_compare_func == NULL ? item_compare : item_compare2); if (!item_compare_func_err) { /* Clear the List and append the items in the sorted order. */ l->lv_first = l->lv_last = NULL; l->lv_len = 0; for (i = 0; i < len; ++i) list_append(l, ptrs[i]); } } vim_free(ptrs); } } /* * "soundfold({word})" function */ static void f_soundfold(argvars, rettv) typval_T *argvars; typval_T *rettv; { char_u *s; rettv->v_type = VAR_STRING; s = get_tv_string(&argvars[0]); #ifdef FEAT_SPELL rettv->vval.v_string = eval_soundfold(s); #else rettv->vval.v_string = vim_strsave(s); #endif } /* * "spellbadword()" function */ /* ARGSUSED */ static void f_spellbadword(argvars, rettv) typval_T *argvars; typval_T *rettv; { char_u *word = (char_u *)""; hlf_T attr = HLF_COUNT; int len = 0; if (rettv_list_alloc(rettv) == FAIL) return; #ifdef FEAT_SPELL if (argvars[0].v_type == VAR_UNKNOWN) { /* Find the start and length of the badly spelled word. */ len = spell_move_to(curwin, FORWARD, TRUE, TRUE, &attr); if (len != 0) word = ml_get_cursor(); } else if (curwin->w_p_spell && *curbuf->b_p_spl != NUL) { char_u *str = get_tv_string_chk(&argvars[0]); int capcol = -1; if (str != NULL) { /* Check the argument for spelling. */ while (*str != NUL) { len = spell_check(curwin, str, &attr, &capcol, FALSE); if (attr != HLF_COUNT) { word = str; break; } str += len; } } } #endif list_append_string(rettv->vval.v_list, word, len); list_append_string(rettv->vval.v_list, (char_u *)( attr == HLF_SPB ? "bad" : attr == HLF_SPR ? "rare" : attr == HLF_SPL ? "local" : attr == HLF_SPC ? "caps" : ""), -1); } /* * "spellsuggest()" function */ /*ARGSUSED*/ static void f_spellsuggest(argvars, rettv) typval_T *argvars; typval_T *rettv; { #ifdef FEAT_SPELL char_u *str; int typeerr = FALSE; int maxcount; garray_T ga; int i; listitem_T *li; int need_capital = FALSE; #endif if (rettv_list_alloc(rettv) == FAIL) return; #ifdef FEAT_SPELL if (curwin->w_p_spell && *curbuf->b_p_spl != NUL) { str = get_tv_string(&argvars[0]); if (argvars[1].v_type != VAR_UNKNOWN) { maxcount = get_tv_number_chk(&argvars[1], &typeerr); if (maxcount <= 0) return; if (argvars[2].v_type != VAR_UNKNOWN) { need_capital = get_tv_number_chk(&argvars[2], &typeerr); if (typeerr) return; } } else maxcount = 25; spell_suggest_list(&ga, str, maxcount, need_capital, FALSE); for (i = 0; i < ga.ga_len; ++i) { str = ((char_u **)ga.ga_data)[i]; li = listitem_alloc(); if (li == NULL) vim_free(str); else { li->li_tv.v_type = VAR_STRING; li->li_tv.v_lock = 0; li->li_tv.vval.v_string = str; list_append(rettv->vval.v_list, li); } } ga_clear(&ga); } #endif } static void f_split(argvars, rettv) typval_T *argvars; typval_T *rettv; { char_u *str; char_u *end; char_u *pat = NULL; regmatch_T regmatch; char_u patbuf[NUMBUFLEN]; char_u *save_cpo; int match; colnr_T col = 0; int keepempty = FALSE; int typeerr = FALSE; /* Make 'cpoptions' empty, the 'l' flag should not be used here. */ save_cpo = p_cpo; p_cpo = (char_u *)""; str = get_tv_string(&argvars[0]); if (argvars[1].v_type != VAR_UNKNOWN) { pat = get_tv_string_buf_chk(&argvars[1], patbuf); if (pat == NULL) typeerr = TRUE; if (argvars[2].v_type != VAR_UNKNOWN) keepempty = get_tv_number_chk(&argvars[2], &typeerr); } if (pat == NULL || *pat == NUL) pat = (char_u *)"[\\x01- ]\\+"; if (rettv_list_alloc(rettv) == FAIL) return; if (typeerr) return; regmatch.regprog = vim_regcomp(pat, RE_MAGIC + RE_STRING); if (regmatch.regprog != NULL) { regmatch.rm_ic = FALSE; while (*str != NUL || keepempty) { if (*str == NUL) match = FALSE; /* empty item at the end */ else match = vim_regexec_nl(®match, str, col); if (match) end = regmatch.startp[0]; else end = str + STRLEN(str); if (keepempty || end > str || (rettv->vval.v_list->lv_len > 0 && *str != NUL && match && end < regmatch.endp[0])) { if (list_append_string(rettv->vval.v_list, str, (int)(end - str)) == FAIL) break; } if (!match) break; /* Advance to just after the match. */ if (regmatch.endp[0] > str) col = 0; else { /* Don't get stuck at the same match. */ #ifdef FEAT_MBYTE col = (*mb_ptr2len)(regmatch.endp[0]); #else col = 1; #endif } str = regmatch.endp[0]; } vim_free(regmatch.regprog); } p_cpo = save_cpo; } /* * "str2nr()" function */ static void f_str2nr(argvars, rettv) typval_T *argvars; typval_T *rettv; { int base = 10; char_u *p; long n; if (argvars[1].v_type != VAR_UNKNOWN) { base = get_tv_number(&argvars[1]); if (base != 8 && base != 10 && base != 16) { EMSG(_(e_invarg)); return; } } p = skipwhite(get_tv_string(&argvars[0])); vim_str2nr(p, NULL, NULL, base == 8 ? 2 : 0, base == 16 ? 2 : 0, &n, NULL); rettv->vval.v_number = n; } #ifdef HAVE_STRFTIME /* * "strftime({format}[, {time}])" function */ static void f_strftime(argvars, rettv) typval_T *argvars; typval_T *rettv; { char_u result_buf[256]; struct tm *curtime; time_t seconds; char_u *p; rettv->v_type = VAR_STRING; p = get_tv_string(&argvars[0]); if (argvars[1].v_type == VAR_UNKNOWN) seconds = time(NULL); else seconds = (time_t)get_tv_number(&argvars[1]); curtime = localtime(&seconds); /* MSVC returns NULL for an invalid value of seconds. */ if (curtime == NULL) rettv->vval.v_string = vim_strsave((char_u *)_("(Invalid)")); else { # ifdef FEAT_MBYTE vimconv_T conv; char_u *enc; conv.vc_type = CONV_NONE; enc = enc_locale(); convert_setup(&conv, p_enc, enc); if (conv.vc_type != CONV_NONE) p = string_convert(&conv, p, NULL); # endif if (p != NULL) (void)strftime((char *)result_buf, sizeof(result_buf), (char *)p, curtime); else result_buf[0] = NUL; # ifdef FEAT_MBYTE if (conv.vc_type != CONV_NONE) vim_free(p); convert_setup(&conv, enc, p_enc); if (conv.vc_type != CONV_NONE) rettv->vval.v_string = string_convert(&conv, result_buf, NULL); else # endif rettv->vval.v_string = vim_strsave(result_buf); # ifdef FEAT_MBYTE /* Release conversion descriptors */ convert_setup(&conv, NULL, NULL); vim_free(enc); # endif } } #endif /* * "stridx()" function */ static void f_stridx(argvars, rettv) typval_T *argvars; typval_T *rettv; { char_u buf[NUMBUFLEN]; char_u *needle; char_u *haystack; char_u *save_haystack; char_u *pos; int start_idx; needle = get_tv_string_chk(&argvars[1]); save_haystack = haystack = get_tv_string_buf_chk(&argvars[0], buf); rettv->vval.v_number = -1; if (needle == NULL || haystack == NULL) return; /* type error; errmsg already given */ if (argvars[2].v_type != VAR_UNKNOWN) { int error = FALSE; start_idx = get_tv_number_chk(&argvars[2], &error); if (error || start_idx >= (int)STRLEN(haystack)) return; if (start_idx >= 0) haystack += start_idx; } pos = (char_u *)strstr((char *)haystack, (char *)needle); if (pos != NULL) rettv->vval.v_number = (varnumber_T)(pos - save_haystack); } /* * "string()" function */ static void f_string(argvars, rettv) typval_T *argvars; typval_T *rettv; { char_u *tofree; char_u numbuf[NUMBUFLEN]; rettv->v_type = VAR_STRING; rettv->vval.v_string = tv2string(&argvars[0], &tofree, numbuf, 0); if (tofree == NULL) rettv->vval.v_string = vim_strsave(rettv->vval.v_string); } /* * "strlen()" function */ static void f_strlen(argvars, rettv) typval_T *argvars; typval_T *rettv; { rettv->vval.v_number = (varnumber_T)(STRLEN( get_tv_string(&argvars[0]))); } /* * "strpart()" function */ static void f_strpart(argvars, rettv) typval_T *argvars; typval_T *rettv; { char_u *p; int n; int len; int slen; int error = FALSE; p = get_tv_string(&argvars[0]); slen = (int)STRLEN(p); n = get_tv_number_chk(&argvars[1], &error); if (error) len = 0; else if (argvars[2].v_type != VAR_UNKNOWN) len = get_tv_number(&argvars[2]); else len = slen - n; /* default len: all bytes that are available. */ /* * Only return the overlap between the specified part and the actual * string. */ if (n < 0) { len += n; n = 0; } else if (n > slen) n = slen; if (len < 0) len = 0; else if (n + len > slen) len = slen - n; rettv->v_type = VAR_STRING; rettv->vval.v_string = vim_strnsave(p + n, len); } /* * "strridx()" function */ static void f_strridx(argvars, rettv) typval_T *argvars; typval_T *rettv; { char_u buf[NUMBUFLEN]; char_u *needle; char_u *haystack; char_u *rest; char_u *lastmatch = NULL; int haystack_len, end_idx; needle = get_tv_string_chk(&argvars[1]); haystack = get_tv_string_buf_chk(&argvars[0], buf); rettv->vval.v_number = -1; if (needle == NULL || haystack == NULL) return; /* type error; errmsg already given */ haystack_len = (int)STRLEN(haystack); if (argvars[2].v_type != VAR_UNKNOWN) { /* Third argument: upper limit for index */ end_idx = get_tv_number_chk(&argvars[2], NULL); if (end_idx < 0) return; /* can never find a match */ } else end_idx = haystack_len; if (*needle == NUL) { /* Empty string matches past the end. */ lastmatch = haystack + end_idx; } else { for (rest = haystack; *rest != '\0'; ++rest) { rest = (char_u *)strstr((char *)rest, (char *)needle); if (rest == NULL || rest > haystack + end_idx) break; lastmatch = rest; } } if (lastmatch == NULL) rettv->vval.v_number = -1; else rettv->vval.v_number = (varnumber_T)(lastmatch - haystack); } /* * "strtrans()" function */ static void f_strtrans(argvars, rettv) typval_T *argvars; typval_T *rettv; { rettv->v_type = VAR_STRING; rettv->vval.v_string = transstr(get_tv_string(&argvars[0])); } /* * "submatch()" function */ static void f_submatch(argvars, rettv) typval_T *argvars; typval_T *rettv; { rettv->v_type = VAR_STRING; rettv->vval.v_string = reg_submatch((int)get_tv_number_chk(&argvars[0], NULL)); } /* * "substitute()" function */ static void f_substitute(argvars, rettv) typval_T *argvars; typval_T *rettv; { char_u patbuf[NUMBUFLEN]; char_u subbuf[NUMBUFLEN]; char_u flagsbuf[NUMBUFLEN]; char_u *str = get_tv_string_chk(&argvars[0]); char_u *pat = get_tv_string_buf_chk(&argvars[1], patbuf); char_u *sub = get_tv_string_buf_chk(&argvars[2], subbuf); char_u *flg = get_tv_string_buf_chk(&argvars[3], flagsbuf); rettv->v_type = VAR_STRING; if (str == NULL || pat == NULL || sub == NULL || flg == NULL) rettv->vval.v_string = NULL; else rettv->vval.v_string = do_string_sub(str, pat, sub, flg); } /* * "synID(lnum, col, trans)" function */ /*ARGSUSED*/ static void f_synID(argvars, rettv) typval_T *argvars; typval_T *rettv; { int id = 0; #ifdef FEAT_SYN_HL long lnum; long col; int trans; int transerr = FALSE; lnum = get_tv_lnum(argvars); /* -1 on type error */ col = get_tv_number(&argvars[1]) - 1; /* -1 on type error */ trans = get_tv_number_chk(&argvars[2], &transerr); if (!transerr && lnum >= 1 && lnum <= curbuf->b_ml.ml_line_count && col >= 0 && col < (long)STRLEN(ml_get(lnum))) id = syn_get_id(curwin, lnum, (colnr_T)col, trans, NULL); #endif rettv->vval.v_number = id; } /* * "synIDattr(id, what [, mode])" function */ /*ARGSUSED*/ static void f_synIDattr(argvars, rettv) typval_T *argvars; typval_T *rettv; { char_u *p = NULL; #ifdef FEAT_SYN_HL int id; char_u *what; char_u *mode; char_u modebuf[NUMBUFLEN]; int modec; id = get_tv_number(&argvars[0]); what = get_tv_string(&argvars[1]); if (argvars[2].v_type != VAR_UNKNOWN) { mode = get_tv_string_buf(&argvars[2], modebuf); modec = TOLOWER_ASC(mode[0]); if (modec != 't' && modec != 'c' #ifdef FEAT_GUI && modec != 'g' #endif ) modec = 0; /* replace invalid with current */ } else { #ifdef FEAT_GUI if (gui.in_use) modec = 'g'; else #endif if (t_colors > 1) modec = 'c'; else modec = 't'; } switch (TOLOWER_ASC(what[0])) { case 'b': if (TOLOWER_ASC(what[1]) == 'g') /* bg[#] */ p = highlight_color(id, what, modec); else /* bold */ p = highlight_has_attr(id, HL_BOLD, modec); break; case 'f': /* fg[#] */ p = highlight_color(id, what, modec); break; case 'i': if (TOLOWER_ASC(what[1]) == 'n') /* inverse */ p = highlight_has_attr(id, HL_INVERSE, modec); else /* italic */ p = highlight_has_attr(id, HL_ITALIC, modec); break; case 'n': /* name */ p = get_highlight_name(NULL, id - 1); break; case 'r': /* reverse */ p = highlight_has_attr(id, HL_INVERSE, modec); break; case 's': /* standout */ p = highlight_has_attr(id, HL_STANDOUT, modec); break; case 'u': if (STRLEN(what) <= 5 || TOLOWER_ASC(what[5]) != 'c') /* underline */ p = highlight_has_attr(id, HL_UNDERLINE, modec); else /* undercurl */ p = highlight_has_attr(id, HL_UNDERCURL, modec); break; } if (p != NULL) p = vim_strsave(p); #endif rettv->v_type = VAR_STRING; rettv->vval.v_string = p; } /* * "synIDtrans(id)" function */ /*ARGSUSED*/ static void f_synIDtrans(argvars, rettv) typval_T *argvars; typval_T *rettv; { int id; #ifdef FEAT_SYN_HL id = get_tv_number(&argvars[0]); if (id > 0) id = syn_get_final_id(id); else #endif id = 0; rettv->vval.v_number = id; } /* * "system()" function */ static void f_system(argvars, rettv) typval_T *argvars; typval_T *rettv; { char_u *res = NULL; char_u *p; char_u *infile = NULL; char_u buf[NUMBUFLEN]; int err = FALSE; FILE *fd; if (check_restricted() || check_secure()) return; if (argvars[1].v_type != VAR_UNKNOWN) { /* * Write the string to a temp file, to be used for input of the shell * command. */ if ((infile = vim_tempname('i')) == NULL) { EMSG(_(e_notmp)); return; } fd = mch_fopen((char *)infile, WRITEBIN); if (fd == NULL) { EMSG2(_(e_notopen), infile); goto done; } p = get_tv_string_buf_chk(&argvars[1], buf); if (p == NULL) { fclose(fd); goto done; /* type error; errmsg already given */ } if (fwrite(p, STRLEN(p), 1, fd) != 1) err = TRUE; if (fclose(fd) != 0) err = TRUE; if (err) { EMSG(_("E677: Error writing temp file")); goto done; } } res = get_cmd_output(get_tv_string(&argvars[0]), infile, SHELL_SILENT | SHELL_COOKED); #ifdef USE_CR /* translate <CR> into <NL> */ if (res != NULL) { char_u *s; for (s = res; *s; ++s) { if (*s == CAR) *s = NL; } } #else # ifdef USE_CRNL /* translate <CR><NL> into <NL> */ if (res != NULL) { char_u *s, *d; d = res; for (s = res; *s; ++s) { if (s[0] == CAR && s[1] == NL) ++s; *d++ = *s; } *d = NUL; } # endif #endif done: if (infile != NULL) { mch_remove(infile); vim_free(infile); } rettv->v_type = VAR_STRING; rettv->vval.v_string = res; } /* * "tabpagebuflist()" function */ /* ARGSUSED */ static void f_tabpagebuflist(argvars, rettv) typval_T *argvars; typval_T *rettv; { #ifndef FEAT_WINDOWS rettv->vval.v_number = 0; #else tabpage_T *tp; win_T *wp = NULL; if (argvars[0].v_type == VAR_UNKNOWN) wp = firstwin; else { tp = find_tabpage((int)get_tv_number(&argvars[0])); if (tp != NULL) wp = (tp == curtab) ? firstwin : tp->tp_firstwin; } if (wp == NULL) rettv->vval.v_number = 0; else { if (rettv_list_alloc(rettv) == FAIL) rettv->vval.v_number = 0; else { for (; wp != NULL; wp = wp->w_next) if (list_append_number(rettv->vval.v_list, wp->w_buffer->b_fnum) == FAIL) break; } } #endif } /* * "tabpagenr()" function */ /* ARGSUSED */ static void f_tabpagenr(argvars, rettv) typval_T *argvars; typval_T *rettv; { int nr = 1; #ifdef FEAT_WINDOWS char_u *arg; if (argvars[0].v_type != VAR_UNKNOWN) { arg = get_tv_string_chk(&argvars[0]); nr = 0; if (arg != NULL) { if (STRCMP(arg, "$") == 0) nr = tabpage_index(NULL) - 1; else EMSG2(_(e_invexpr2), arg); } } else nr = tabpage_index(curtab); #endif rettv->vval.v_number = nr; } #ifdef FEAT_WINDOWS static int get_winnr __ARGS((tabpage_T *tp, typval_T *argvar)); /* * Common code for tabpagewinnr() and winnr(). */ static int get_winnr(tp, argvar) tabpage_T *tp; typval_T *argvar; { win_T *twin; int nr = 1; win_T *wp; char_u *arg; twin = (tp == curtab) ? curwin : tp->tp_curwin; if (argvar->v_type != VAR_UNKNOWN) { arg = get_tv_string_chk(argvar); if (arg == NULL) nr = 0; /* type error; errmsg already given */ else if (STRCMP(arg, "$") == 0) twin = (tp == curtab) ? lastwin : tp->tp_lastwin; else if (STRCMP(arg, "#") == 0) { twin = (tp == curtab) ? prevwin : tp->tp_prevwin; if (twin == NULL) nr = 0; } else { EMSG2(_(e_invexpr2), arg); nr = 0; } } if (nr > 0) for (wp = (tp == curtab) ? firstwin : tp->tp_firstwin; wp != twin; wp = wp->w_next) { if (wp == NULL) { /* didn't find it in this tabpage */ nr = 0; break; } ++nr; } return nr; } #endif /* * "tabpagewinnr()" function */ /* ARGSUSED */ static void f_tabpagewinnr(argvars, rettv) typval_T *argvars; typval_T *rettv; { int nr = 1; #ifdef FEAT_WINDOWS tabpage_T *tp; tp = find_tabpage((int)get_tv_number(&argvars[0])); if (tp == NULL) nr = 0; else nr = get_winnr(tp, &argvars[1]); #endif rettv->vval.v_number = nr; } /* * "tagfiles()" function */ /*ARGSUSED*/ static void f_tagfiles(argvars, rettv) typval_T *argvars; typval_T *rettv; { char_u fname[MAXPATHL + 1]; tagname_T tn; int first; if (rettv_list_alloc(rettv) == FAIL) { rettv->vval.v_number = 0; return; } for (first = TRUE; ; first = FALSE) if (get_tagfname(&tn, first, fname) == FAIL || list_append_string(rettv->vval.v_list, fname, -1) == FAIL) break; tagname_free(&tn); } /* * "taglist()" function */ static void f_taglist(argvars, rettv) typval_T *argvars; typval_T *rettv; { char_u *tag_pattern; tag_pattern = get_tv_string(&argvars[0]); rettv->vval.v_number = FALSE; if (*tag_pattern == NUL) return; if (rettv_list_alloc(rettv) == OK) (void)get_tags(rettv->vval.v_list, tag_pattern); } /* * "tempname()" function */ /*ARGSUSED*/ static void f_tempname(argvars, rettv) typval_T *argvars; typval_T *rettv; { static int x = 'A'; rettv->v_type = VAR_STRING; rettv->vval.v_string = vim_tempname(x); /* Advance 'x' to use A-Z and 0-9, so that there are at least 34 different * names. Skip 'I' and 'O', they are used for shell redirection. */ do { if (x == 'Z') x = '0'; else if (x == '9') x = 'A'; else { #ifdef EBCDIC if (x == 'I') x = 'J'; else if (x == 'R') x = 'S'; else #endif ++x; } } while (x == 'I' || x == 'O'); } /* * "test(list)" function: Just checking the walls... */ /*ARGSUSED*/ static void f_test(argvars, rettv) typval_T *argvars; typval_T *rettv; { /* Used for unit testing. Change the code below to your liking. */ #if 0 listitem_T *li; list_T *l; char_u *bad, *good; if (argvars[0].v_type != VAR_LIST) return; l = argvars[0].vval.v_list; if (l == NULL) return; li = l->lv_first; if (li == NULL) return; bad = get_tv_string(&li->li_tv); li = li->li_next; if (li == NULL) return; good = get_tv_string(&li->li_tv); rettv->vval.v_number = test_edit_score(bad, good); #endif } /* * "tolower(string)" function */ static void f_tolower(argvars, rettv) typval_T *argvars; typval_T *rettv; { char_u *p; p = vim_strsave(get_tv_string(&argvars[0])); rettv->v_type = VAR_STRING; rettv->vval.v_string = p; if (p != NULL) while (*p != NUL) { #ifdef FEAT_MBYTE int l; if (enc_utf8) { int c, lc; c = utf_ptr2char(p); lc = utf_tolower(c); l = utf_ptr2len(p); /* TODO: reallocate string when byte count changes. */ if (utf_char2len(lc) == l) utf_char2bytes(lc, p); p += l; } else if (has_mbyte && (l = (*mb_ptr2len)(p)) > 1) p += l; /* skip multi-byte character */ else #endif { *p = TOLOWER_LOC(*p); /* note that tolower() can be a macro */ ++p; } } } /* * "toupper(string)" function */ static void f_toupper(argvars, rettv) typval_T *argvars; typval_T *rettv; { rettv->v_type = VAR_STRING; rettv->vval.v_string = strup_save(get_tv_string(&argvars[0])); } /* * "tr(string, fromstr, tostr)" function */ static void f_tr(argvars, rettv) typval_T *argvars; typval_T *rettv; { char_u *instr; char_u *fromstr; char_u *tostr; char_u *p; #ifdef FEAT_MBYTE int inlen; int fromlen; int tolen; int idx; char_u *cpstr; int cplen; int first = TRUE; #endif char_u buf[NUMBUFLEN]; char_u buf2[NUMBUFLEN]; garray_T ga; instr = get_tv_string(&argvars[0]); fromstr = get_tv_string_buf_chk(&argvars[1], buf); tostr = get_tv_string_buf_chk(&argvars[2], buf2); /* Default return value: empty string. */ rettv->v_type = VAR_STRING; rettv->vval.v_string = NULL; if (fromstr == NULL || tostr == NULL) return; /* type error; errmsg already given */ ga_init2(&ga, (int)sizeof(char), 80); #ifdef FEAT_MBYTE if (!has_mbyte) #endif /* not multi-byte: fromstr and tostr must be the same length */ if (STRLEN(fromstr) != STRLEN(tostr)) { #ifdef FEAT_MBYTE error: #endif EMSG2(_(e_invarg2), fromstr); ga_clear(&ga); return; } /* fromstr and tostr have to contain the same number of chars */ while (*instr != NUL) { #ifdef FEAT_MBYTE if (has_mbyte) { inlen = (*mb_ptr2len)(instr); cpstr = instr; cplen = inlen; idx = 0; for (p = fromstr; *p != NUL; p += fromlen) { fromlen = (*mb_ptr2len)(p); if (fromlen == inlen && STRNCMP(instr, p, inlen) == 0) { for (p = tostr; *p != NUL; p += tolen) { tolen = (*mb_ptr2len)(p); if (idx-- == 0) { cplen = tolen; cpstr = p; break; } } if (*p == NUL) /* tostr is shorter than fromstr */ goto error; break; } ++idx; } if (first && cpstr == instr) { /* Check that fromstr and tostr have the same number of * (multi-byte) characters. Done only once when a character * of instr doesn't appear in fromstr. */ first = FALSE; for (p = tostr; *p != NUL; p += tolen) { tolen = (*mb_ptr2len)(p); --idx; } if (idx != 0) goto error; } ga_grow(&ga, cplen); mch_memmove((char *)ga.ga_data + ga.ga_len, cpstr, (size_t)cplen); ga.ga_len += cplen; instr += inlen; } else #endif { /* When not using multi-byte chars we can do it faster. */ p = vim_strchr(fromstr, *instr); if (p != NULL) ga_append(&ga, tostr[p - fromstr]); else ga_append(&ga, *instr); ++instr; } } /* add a terminating NUL */ ga_grow(&ga, 1); ga_append(&ga, NUL); rettv->vval.v_string = ga.ga_data; } /* * "type(expr)" function */ static void f_type(argvars, rettv) typval_T *argvars; typval_T *rettv; { int n; switch (argvars[0].v_type) { case VAR_NUMBER: n = 0; break; case VAR_STRING: n = 1; break; case VAR_FUNC: n = 2; break; case VAR_LIST: n = 3; break; case VAR_DICT: n = 4; break; default: EMSG2(_(e_intern2), "f_type()"); n = 0; break; } rettv->vval.v_number = n; } /* * "values(dict)" function */ static void f_values(argvars, rettv) typval_T *argvars; typval_T *rettv; { dict_list(argvars, rettv, 1); } /* * "virtcol(string)" function */ static void f_virtcol(argvars, rettv) typval_T *argvars; typval_T *rettv; { colnr_T vcol = 0; pos_T *fp; int fnum = curbuf->b_fnum; fp = var2fpos(&argvars[0], FALSE, &fnum); if (fp != NULL && fp->lnum <= curbuf->b_ml.ml_line_count && fnum == curbuf->b_fnum) { getvvcol(curwin, fp, NULL, NULL, &vcol); ++vcol; } rettv->vval.v_number = vcol; } /* * "visualmode()" function */ /*ARGSUSED*/ static void f_visualmode(argvars, rettv) typval_T *argvars; typval_T *rettv; { #ifdef FEAT_VISUAL char_u str[2]; rettv->v_type = VAR_STRING; str[0] = curbuf->b_visual_mode_eval; str[1] = NUL; rettv->vval.v_string = vim_strsave(str); /* A non-zero number or non-empty string argument: reset mode. */ if ((argvars[0].v_type == VAR_NUMBER && argvars[0].vval.v_number != 0) || (argvars[0].v_type == VAR_STRING && *get_tv_string(&argvars[0]) != NUL)) curbuf->b_visual_mode_eval = NUL; #else rettv->vval.v_number = 0; /* return anything, it won't work anyway */ #endif } /* * "winbufnr(nr)" function */ static void f_winbufnr(argvars, rettv) typval_T *argvars; typval_T *rettv; { win_T *wp; wp = find_win_by_nr(&argvars[0], NULL); if (wp == NULL) rettv->vval.v_number = -1; else rettv->vval.v_number = wp->w_buffer->b_fnum; } /* * "wincol()" function */ /*ARGSUSED*/ static void f_wincol(argvars, rettv) typval_T *argvars; typval_T *rettv; { validate_cursor(); rettv->vval.v_number = curwin->w_wcol + 1; } /* * "winheight(nr)" function */ static void f_winheight(argvars, rettv) typval_T *argvars; typval_T *rettv; { win_T *wp; wp = find_win_by_nr(&argvars[0], NULL); if (wp == NULL) rettv->vval.v_number = -1; else rettv->vval.v_number = wp->w_height; } /* * "winline()" function */ /*ARGSUSED*/ static void f_winline(argvars, rettv) typval_T *argvars; typval_T *rettv; { validate_cursor(); rettv->vval.v_number = curwin->w_wrow + 1; } /* * "winnr()" function */ /* ARGSUSED */ static void f_winnr(argvars, rettv) typval_T *argvars; typval_T *rettv; { int nr = 1; #ifdef FEAT_WINDOWS nr = get_winnr(curtab, &argvars[0]); #endif rettv->vval.v_number = nr; } /* * "winrestcmd()" function */ /* ARGSUSED */ static void f_winrestcmd(argvars, rettv) typval_T *argvars; typval_T *rettv; { #ifdef FEAT_WINDOWS win_T *wp; int winnr = 1; garray_T ga; char_u buf[50]; ga_init2(&ga, (int)sizeof(char), 70); for (wp = firstwin; wp != NULL; wp = wp->w_next) { sprintf((char *)buf, "%dresize %d|", winnr, wp->w_height); ga_concat(&ga, buf); # ifdef FEAT_VERTSPLIT sprintf((char *)buf, "vert %dresize %d|", winnr, wp->w_width); ga_concat(&ga, buf); # endif ++winnr; } ga_append(&ga, NUL); rettv->vval.v_string = ga.ga_data; #else rettv->vval.v_string = NULL; #endif rettv->v_type = VAR_STRING; } /* * "winrestview()" function */ /* ARGSUSED */ static void f_winrestview(argvars, rettv) typval_T *argvars; typval_T *rettv; { dict_T *dict; if (argvars[0].v_type != VAR_DICT || (dict = argvars[0].vval.v_dict) == NULL) EMSG(_(e_invarg)); else { curwin->w_cursor.lnum = get_dict_number(dict, (char_u *)"lnum"); curwin->w_cursor.col = get_dict_number(dict, (char_u *)"col"); #ifdef FEAT_VIRTUALEDIT curwin->w_cursor.coladd = get_dict_number(dict, (char_u *)"coladd"); #endif curwin->w_curswant = get_dict_number(dict, (char_u *)"curswant"); curwin->w_set_curswant = FALSE; set_topline(curwin, get_dict_number(dict, (char_u *)"topline")); #ifdef FEAT_DIFF curwin->w_topfill = get_dict_number(dict, (char_u *)"topfill"); #endif curwin->w_leftcol = get_dict_number(dict, (char_u *)"leftcol"); curwin->w_skipcol = get_dict_number(dict, (char_u *)"skipcol"); check_cursor(); changed_cline_bef_curs(); invalidate_botline(); redraw_later(VALID); if (curwin->w_topline == 0) curwin->w_topline = 1; if (curwin->w_topline > curbuf->b_ml.ml_line_count) curwin->w_topline = curbuf->b_ml.ml_line_count; #ifdef FEAT_DIFF check_topfill(curwin, TRUE); #endif } } /* * "winsaveview()" function */ /* ARGSUSED */ static void f_winsaveview(argvars, rettv) typval_T *argvars; typval_T *rettv; { dict_T *dict; dict = dict_alloc(); if (dict == NULL) return; rettv->v_type = VAR_DICT; rettv->vval.v_dict = dict; ++dict->dv_refcount; dict_add_nr_str(dict, "lnum", (long)curwin->w_cursor.lnum, NULL); dict_add_nr_str(dict, "col", (long)curwin->w_cursor.col, NULL); #ifdef FEAT_VIRTUALEDIT dict_add_nr_str(dict, "coladd", (long)curwin->w_cursor.coladd, NULL); #endif update_curswant(); dict_add_nr_str(dict, "curswant", (long)curwin->w_curswant, NULL); dict_add_nr_str(dict, "topline", (long)curwin->w_topline, NULL); #ifdef FEAT_DIFF dict_add_nr_str(dict, "topfill", (long)curwin->w_topfill, NULL); #endif dict_add_nr_str(dict, "leftcol", (long)curwin->w_leftcol, NULL); dict_add_nr_str(dict, "skipcol", (long)curwin->w_skipcol, NULL); } /* * "winwidth(nr)" function */ static void f_winwidth(argvars, rettv) typval_T *argvars; typval_T *rettv; { win_T *wp; wp = find_win_by_nr(&argvars[0], NULL); if (wp == NULL) rettv->vval.v_number = -1; else #ifdef FEAT_VERTSPLIT rettv->vval.v_number = wp->w_width; #else rettv->vval.v_number = Columns; #endif } /* * "writefile()" function */ static void f_writefile(argvars, rettv) typval_T *argvars; typval_T *rettv; { int binary = FALSE; char_u *fname; FILE *fd; listitem_T *li; char_u *s; int ret = 0; int c; if (check_restricted() || check_secure()) return; if (argvars[0].v_type != VAR_LIST) { EMSG2(_(e_listarg), "writefile()"); return; } if (argvars[0].vval.v_list == NULL) return; if (argvars[2].v_type != VAR_UNKNOWN && STRCMP(get_tv_string(&argvars[2]), "b") == 0) binary = TRUE; /* Always open the file in binary mode, library functions have a mind of * their own about CR-LF conversion. */ fname = get_tv_string(&argvars[1]); if (*fname == NUL || (fd = mch_fopen((char *)fname, WRITEBIN)) == NULL) { EMSG2(_(e_notcreate), *fname == NUL ? (char_u *)_("<empty>") : fname); ret = -1; } else { for (li = argvars[0].vval.v_list->lv_first; li != NULL; li = li->li_next) { for (s = get_tv_string(&li->li_tv); *s != NUL; ++s) { if (*s == '\n') c = putc(NUL, fd); else c = putc(*s, fd); if (c == EOF) { ret = -1; break; } } if (!binary || li->li_next != NULL) if (putc('\n', fd) == EOF) { ret = -1; break; } if (ret < 0) { EMSG(_(e_write)); break; } } fclose(fd); } rettv->vval.v_number = ret; } /* * Translate a String variable into a position. * Returns NULL when there is an error. */ static pos_T * var2fpos(varp, lnum, fnum) typval_T *varp; int lnum; /* TRUE when $ is last line */ int *fnum; /* set to fnum for '0, 'A, etc. */ { char_u *name; static pos_T pos; pos_T *pp; /* Argument can be [lnum, col, coladd]. */ if (varp->v_type == VAR_LIST) { list_T *l; int len; int error = FALSE; l = varp->vval.v_list; if (l == NULL) return NULL; /* Get the line number */ pos.lnum = list_find_nr(l, 0L, &error); if (error || pos.lnum <= 0 || pos.lnum > curbuf->b_ml.ml_line_count) return NULL; /* invalid line number */ /* Get the column number */ pos.col = list_find_nr(l, 1L, &error); if (error) return NULL; len = (long)STRLEN(ml_get(pos.lnum)); /* Accept a position up to the NUL after the line. */ if (pos.col == 0 || (int)pos.col > len + 1) return NULL; /* invalid column number */ --pos.col; #ifdef FEAT_VIRTUALEDIT /* Get the virtual offset. Defaults to zero. */ pos.coladd = list_find_nr(l, 2L, &error); if (error) pos.coladd = 0; #endif return &pos; } name = get_tv_string_chk(varp); if (name == NULL) return NULL; if (name[0] == '.') /* cursor */ return &curwin->w_cursor; if (name[0] == '\'') /* mark */ { pp = getmark_fnum(name[1], FALSE, fnum); if (pp == NULL || pp == (pos_T *)-1 || pp->lnum <= 0) return NULL; return pp; } #ifdef FEAT_VIRTUALEDIT pos.coladd = 0; #endif if (name[0] == 'w' && lnum) { pos.col = 0; if (name[1] == '0') /* "w0": first visible line */ { update_topline(); pos.lnum = curwin->w_topline; return &pos; } else if (name[1] == '$') /* "w$": last visible line */ { validate_botline(); pos.lnum = curwin->w_botline - 1; return &pos; } } else if (name[0] == '$') /* last column or line */ { if (lnum) { pos.lnum = curbuf->b_ml.ml_line_count; pos.col = 0; } else { pos.lnum = curwin->w_cursor.lnum; pos.col = (colnr_T)STRLEN(ml_get_curline()); } return &pos; } return NULL; } /* * Convert list in "arg" into a position and optional file number. * When "fnump" is NULL there is no file number, only 3 items. * Note that the column is passed on as-is, the caller may want to decrement * it to use 1 for the first column. * Return FAIL when conversion is not possible, doesn't check the position for * validity. */ static int list2fpos(arg, posp, fnump) typval_T *arg; pos_T *posp; int *fnump; { list_T *l = arg->vval.v_list; long i = 0; long n; /* List must be: [fnum, lnum, col, coladd], where "fnum" is only there * when "fnump" isn't NULL and "coladd" is optional. */ if (arg->v_type != VAR_LIST || l == NULL || l->lv_len < (fnump == NULL ? 2 : 3) || l->lv_len > (fnump == NULL ? 3 : 4)) return FAIL; if (fnump != NULL) { n = list_find_nr(l, i++, NULL); /* fnum */ if (n < 0) return FAIL; if (n == 0) n = curbuf->b_fnum; /* current buffer */ *fnump = n; } n = list_find_nr(l, i++, NULL); /* lnum */ if (n < 0) return FAIL; posp->lnum = n; n = list_find_nr(l, i++, NULL); /* col */ if (n < 0) return FAIL; posp->col = n; #ifdef FEAT_VIRTUALEDIT n = list_find_nr(l, i, NULL); if (n < 0) posp->coladd = 0; else posp->coladd = n; #endif return OK; } /* * Get the length of an environment variable name. * Advance "arg" to the first character after the name. * Return 0 for error. */ static int get_env_len(arg) char_u **arg; { char_u *p; int len; for (p = *arg; vim_isIDc(*p); ++p) ; if (p == *arg) /* no name found */ return 0; len = (int)(p - *arg); *arg = p; return len; } /* * Get the length of the name of a function or internal variable. * "arg" is advanced to the first non-white character after the name. * Return 0 if something is wrong. */ static int get_id_len(arg) char_u **arg; { char_u *p; int len; /* Find the end of the name. */ for (p = *arg; eval_isnamec(*p); ++p) ; if (p == *arg) /* no name found */ return 0; len = (int)(p - *arg); *arg = skipwhite(p); return len; } /* * Get the length of the name of a variable or function. * Only the name is recognized, does not handle ".key" or "[idx]". * "arg" is advanced to the first non-white character after the name. * Return -1 if curly braces expansion failed. * Return 0 if something else is wrong. * If the name contains 'magic' {}'s, expand them and return the * expanded name in an allocated string via 'alias' - caller must free. */ static int get_name_len(arg, alias, evaluate, verbose) char_u **arg; char_u **alias; int evaluate; int verbose; { int len; char_u *p; char_u *expr_start; char_u *expr_end; *alias = NULL; /* default to no alias */ if ((*arg)[0] == K_SPECIAL && (*arg)[1] == KS_EXTRA && (*arg)[2] == (int)KE_SNR) { /* hard coded <SNR>, already translated */ *arg += 3; return get_id_len(arg) + 3; } len = eval_fname_script(*arg); if (len > 0) { /* literal "<SID>", "s:" or "<SNR>" */ *arg += len; } /* * Find the end of the name; check for {} construction. */ p = find_name_end(*arg, &expr_start, &expr_end, len > 0 ? 0 : FNE_CHECK_START); if (expr_start != NULL) { char_u *temp_string; if (!evaluate) { len += (int)(p - *arg); *arg = skipwhite(p); return len; } /* * Include any <SID> etc in the expanded string: * Thus the -len here. */ temp_string = make_expanded_name(*arg - len, expr_start, expr_end, p); if (temp_string == NULL) return -1; *alias = temp_string; *arg = skipwhite(p); return (int)STRLEN(temp_string); } len += get_id_len(arg); if (len == 0 && verbose) EMSG2(_(e_invexpr2), *arg); return len; } /* * Find the end of a variable or function name, taking care of magic braces. * If "expr_start" is not NULL then "expr_start" and "expr_end" are set to the * start and end of the first magic braces item. * "flags" can have FNE_INCL_BR and FNE_CHECK_START. * Return a pointer to just after the name. Equal to "arg" if there is no * valid name. */ static char_u * find_name_end(arg, expr_start, expr_end, flags) char_u *arg; char_u **expr_start; char_u **expr_end; int flags; { int mb_nest = 0; int br_nest = 0; char_u *p; if (expr_start != NULL) { *expr_start = NULL; *expr_end = NULL; } /* Quick check for valid starting character. */ if ((flags & FNE_CHECK_START) && !eval_isnamec1(*arg) && *arg != '{') return arg; for (p = arg; *p != NUL && (eval_isnamec(*p) || *p == '{' || ((flags & FNE_INCL_BR) && (*p == '[' || *p == '.')) || mb_nest != 0 || br_nest != 0); mb_ptr_adv(p)) { if (*p == '\'') { /* skip over 'string' to avoid counting [ and ] inside it. */ for (p = p + 1; *p != NUL && *p != '\''; mb_ptr_adv(p)) ; if (*p == NUL) break; } else if (*p == '"') { /* skip over "str\"ing" to avoid counting [ and ] inside it. */ for (p = p + 1; *p != NUL && *p != '"'; mb_ptr_adv(p)) if (*p == '\\' && p[1] != NUL) ++p; if (*p == NUL) break; } if (mb_nest == 0) { if (*p == '[') ++br_nest; else if (*p == ']') --br_nest; } if (br_nest == 0) { if (*p == '{') { mb_nest++; if (expr_start != NULL && *expr_start == NULL) *expr_start = p; } else if (*p == '}') { mb_nest--; if (expr_start != NULL && mb_nest == 0 && *expr_end == NULL) *expr_end = p; } } } return p; } /* * Expands out the 'magic' {}'s in a variable/function name. * Note that this can call itself recursively, to deal with * constructs like foo{bar}{baz}{bam} * The four pointer arguments point to "foo{expre}ss{ion}bar" * "in_start" ^ * "expr_start" ^ * "expr_end" ^ * "in_end" ^ * * Returns a new allocated string, which the caller must free. * Returns NULL for failure. */ static char_u * make_expanded_name(in_start, expr_start, expr_end, in_end) char_u *in_start; char_u *expr_start; char_u *expr_end; char_u *in_end; { char_u c1; char_u *retval = NULL; char_u *temp_result; char_u *nextcmd = NULL; if (expr_end == NULL || in_end == NULL) return NULL; *expr_start = NUL; *expr_end = NUL; c1 = *in_end; *in_end = NUL; temp_result = eval_to_string(expr_start + 1, &nextcmd, FALSE); if (temp_result != NULL && nextcmd == NULL) { retval = alloc((unsigned)(STRLEN(temp_result) + (expr_start - in_start) + (in_end - expr_end) + 1)); if (retval != NULL) { STRCPY(retval, in_start); STRCAT(retval, temp_result); STRCAT(retval, expr_end + 1); } } vim_free(temp_result); *in_end = c1; /* put char back for error messages */ *expr_start = '{'; *expr_end = '}'; if (retval != NULL) { temp_result = find_name_end(retval, &expr_start, &expr_end, 0); if (expr_start != NULL) { /* Further expansion! */ temp_result = make_expanded_name(retval, expr_start, expr_end, temp_result); vim_free(retval); retval = temp_result; } } return retval; } /* * Return TRUE if character "c" can be used in a variable or function name. * Does not include '{' or '}' for magic braces. */ static int eval_isnamec(c) int c; { return (ASCII_ISALNUM(c) || c == '_' || c == ':' || c == AUTOLOAD_CHAR); } /* * Return TRUE if character "c" can be used as the first character in a * variable or function name (excluding '{' and '}'). */ static int eval_isnamec1(c) int c; { return (ASCII_ISALPHA(c) || c == '_'); } /* * Set number v: variable to "val". */ void set_vim_var_nr(idx, val) int idx; long val; { vimvars[idx].vv_nr = val; } /* * Get number v: variable value. */ long get_vim_var_nr(idx) int idx; { return vimvars[idx].vv_nr; } #if defined(FEAT_AUTOCMD) || defined(PROTO) /* * Get string v: variable value. Uses a static buffer, can only be used once. */ char_u * get_vim_var_str(idx) int idx; { return get_tv_string(&vimvars[idx].vv_tv); } #endif /* * Set v:count, v:count1 and v:prevcount. */ void set_vcount(count, count1) long count; long count1; { vimvars[VV_PREVCOUNT].vv_nr = vimvars[VV_COUNT].vv_nr; vimvars[VV_COUNT].vv_nr = count; vimvars[VV_COUNT1].vv_nr = count1; } /* * Set string v: variable to a copy of "val". */ void set_vim_var_string(idx, val, len) int idx; char_u *val; int len; /* length of "val" to use or -1 (whole string) */ { /* Need to do this (at least) once, since we can't initialize a union. * Will always be invoked when "v:progname" is set. */ vimvars[VV_VERSION].vv_nr = VIM_VERSION_100; vim_free(vimvars[idx].vv_str); if (val == NULL) vimvars[idx].vv_str = NULL; else if (len == -1) vimvars[idx].vv_str = vim_strsave(val); else vimvars[idx].vv_str = vim_strnsave(val, len); } /* * Set v:register if needed. */ void set_reg_var(c) int c; { char_u regname; if (c == 0 || c == ' ') regname = '"'; else regname = c; /* Avoid free/alloc when the value is already right. */ if (vimvars[VV_REG].vv_str == NULL || vimvars[VV_REG].vv_str[0] != c) set_vim_var_string(VV_REG, ®name, 1); } /* * Get or set v:exception. If "oldval" == NULL, return the current value. * Otherwise, restore the value to "oldval" and return NULL. * Must always be called in pairs to save and restore v:exception! Does not * take care of memory allocations. */ char_u * v_exception(oldval) char_u *oldval; { if (oldval == NULL) return vimvars[VV_EXCEPTION].vv_str; vimvars[VV_EXCEPTION].vv_str = oldval; return NULL; } /* * Get or set v:throwpoint. If "oldval" == NULL, return the current value. * Otherwise, restore the value to "oldval" and return NULL. * Must always be called in pairs to save and restore v:throwpoint! Does not * take care of memory allocations. */ char_u * v_throwpoint(oldval) char_u *oldval; { if (oldval == NULL) return vimvars[VV_THROWPOINT].vv_str; vimvars[VV_THROWPOINT].vv_str = oldval; return NULL; } #if defined(FEAT_AUTOCMD) || defined(PROTO) /* * Set v:cmdarg. * If "eap" != NULL, use "eap" to generate the value and return the old value. * If "oldarg" != NULL, restore the value to "oldarg" and return NULL. * Must always be called in pairs! */ char_u * set_cmdarg(eap, oldarg) exarg_T *eap; char_u *oldarg; { char_u *oldval; char_u *newval; unsigned len; oldval = vimvars[VV_CMDARG].vv_str; if (eap == NULL) { vim_free(oldval); vimvars[VV_CMDARG].vv_str = oldarg; return NULL; } if (eap->force_bin == FORCE_BIN) len = 6; else if (eap->force_bin == FORCE_NOBIN) len = 8; else len = 0; if (eap->read_edit) len += 7; if (eap->force_ff != 0) len += (unsigned)STRLEN(eap->cmd + eap->force_ff) + 6; # ifdef FEAT_MBYTE if (eap->force_enc != 0) len += (unsigned)STRLEN(eap->cmd + eap->force_enc) + 7; if (eap->bad_char != 0) len += (unsigned)STRLEN(eap->cmd + eap->bad_char) + 7; # endif newval = alloc(len + 1); if (newval == NULL) return NULL; if (eap->force_bin == FORCE_BIN) sprintf((char *)newval, " ++bin"); else if (eap->force_bin == FORCE_NOBIN) sprintf((char *)newval, " ++nobin"); else *newval = NUL; if (eap->read_edit) STRCAT(newval, " ++edit"); if (eap->force_ff != 0) sprintf((char *)newval + STRLEN(newval), " ++ff=%s", eap->cmd + eap->force_ff); # ifdef FEAT_MBYTE if (eap->force_enc != 0) sprintf((char *)newval + STRLEN(newval), " ++enc=%s", eap->cmd + eap->force_enc); if (eap->bad_char != 0) sprintf((char *)newval + STRLEN(newval), " ++bad=%s", eap->cmd + eap->bad_char); # endif vimvars[VV_CMDARG].vv_str = newval; return oldval; } #endif /* * Get the value of internal variable "name". * Return OK or FAIL. */ static int get_var_tv(name, len, rettv, verbose) char_u *name; int len; /* length of "name" */ typval_T *rettv; /* NULL when only checking existence */ int verbose; /* may give error message */ { int ret = OK; typval_T *tv = NULL; typval_T atv; dictitem_T *v; int cc; /* truncate the name, so that we can use strcmp() */ cc = name[len]; name[len] = NUL; /* * Check for "b:changedtick". */ if (STRCMP(name, "b:changedtick") == 0) { atv.v_type = VAR_NUMBER; atv.vval.v_number = curbuf->b_changedtick; tv = &atv; } /* * Check for user-defined variables. */ else { v = find_var(name, NULL); if (v != NULL) tv = &v->di_tv; } if (tv == NULL) { if (rettv != NULL && verbose) EMSG2(_(e_undefvar), name); ret = FAIL; } else if (rettv != NULL) copy_tv(tv, rettv); name[len] = cc; return ret; } /* * Handle expr[expr], expr[expr:expr] subscript and .name lookup. * Also handle function call with Funcref variable: func(expr) * Can all be combined: dict.func(expr)[idx]['func'](expr) */ static int handle_subscript(arg, rettv, evaluate, verbose) char_u **arg; typval_T *rettv; int evaluate; /* do more than finding the end */ int verbose; /* give error messages */ { int ret = OK; dict_T *selfdict = NULL; char_u *s; int len; typval_T functv; while (ret == OK && (**arg == '[' || (**arg == '.' && rettv->v_type == VAR_DICT) || (**arg == '(' && rettv->v_type == VAR_FUNC)) && !vim_iswhite(*(*arg - 1))) { if (**arg == '(') { /* need to copy the funcref so that we can clear rettv */ functv = *rettv; rettv->v_type = VAR_UNKNOWN; /* Invoke the function. Recursive! */ s = functv.vval.v_string; ret = get_func_tv(s, (int)STRLEN(s), rettv, arg, curwin->w_cursor.lnum, curwin->w_cursor.lnum, &len, evaluate, selfdict); /* Clear the funcref afterwards, so that deleting it while * evaluating the arguments is possible (see test55). */ clear_tv(&functv); /* Stop the expression evaluation when immediately aborting on * error, or when an interrupt occurred or an exception was thrown * but not caught. */ if (aborting()) { if (ret == OK) clear_tv(rettv); ret = FAIL; } dict_unref(selfdict); selfdict = NULL; } else /* **arg == '[' || **arg == '.' */ { dict_unref(selfdict); if (rettv->v_type == VAR_DICT) { selfdict = rettv->vval.v_dict; if (selfdict != NULL) ++selfdict->dv_refcount; } else selfdict = NULL; if (eval_index(arg, rettv, evaluate, verbose) == FAIL) { clear_tv(rettv); ret = FAIL; } } } dict_unref(selfdict); return ret; } /* * Allocate memory for a variable type-value, and make it emtpy (0 or NULL * value). */ static typval_T * alloc_tv() { return (typval_T *)alloc_clear((unsigned)sizeof(typval_T)); } /* * Allocate memory for a variable type-value, and assign a string to it. * The string "s" must have been allocated, it is consumed. * Return NULL for out of memory, the variable otherwise. */ static typval_T * alloc_string_tv(s) char_u *s; { typval_T *rettv; rettv = alloc_tv(); if (rettv != NULL) { rettv->v_type = VAR_STRING; rettv->vval.v_string = s; } else vim_free(s); return rettv; } /* * Free the memory for a variable type-value. */ void free_tv(varp) typval_T *varp; { if (varp != NULL) { switch (varp->v_type) { case VAR_FUNC: func_unref(varp->vval.v_string); /*FALLTHROUGH*/ case VAR_STRING: vim_free(varp->vval.v_string); break; case VAR_LIST: list_unref(varp->vval.v_list); break; case VAR_DICT: dict_unref(varp->vval.v_dict); break; case VAR_NUMBER: case VAR_UNKNOWN: break; default: EMSG2(_(e_intern2), "free_tv()"); break; } vim_free(varp); } } /* * Free the memory for a variable value and set the value to NULL or 0. */ void clear_tv(varp) typval_T *varp; { if (varp != NULL) { switch (varp->v_type) { case VAR_FUNC: func_unref(varp->vval.v_string); /*FALLTHROUGH*/ case VAR_STRING: vim_free(varp->vval.v_string); varp->vval.v_string = NULL; break; case VAR_LIST: list_unref(varp->vval.v_list); varp->vval.v_list = NULL; break; case VAR_DICT: dict_unref(varp->vval.v_dict); varp->vval.v_dict = NULL; break; case VAR_NUMBER: varp->vval.v_number = 0; break; case VAR_UNKNOWN: break; default: EMSG2(_(e_intern2), "clear_tv()"); } varp->v_lock = 0; } } /* * Set the value of a variable to NULL without freeing items. */ static void init_tv(varp) typval_T *varp; { if (varp != NULL) vim_memset(varp, 0, sizeof(typval_T)); } /* * Get the number value of a variable. * If it is a String variable, uses vim_str2nr(). * For incompatible types, return 0. * get_tv_number_chk() is similar to get_tv_number(), but informs the * caller of incompatible types: it sets *denote to TRUE if "denote" * is not NULL or returns -1 otherwise. */ static long get_tv_number(varp) typval_T *varp; { int error = FALSE; return get_tv_number_chk(varp, &error); /* return 0L on error */ } long get_tv_number_chk(varp, denote) typval_T *varp; int *denote; { long n = 0L; switch (varp->v_type) { case VAR_NUMBER: return (long)(varp->vval.v_number); case VAR_FUNC: EMSG(_("E703: Using a Funcref as a number")); break; case VAR_STRING: if (varp->vval.v_string != NULL) vim_str2nr(varp->vval.v_string, NULL, NULL, TRUE, TRUE, &n, NULL); return n; case VAR_LIST: EMSG(_("E745: Using a List as a number")); break; case VAR_DICT: EMSG(_("E728: Using a Dictionary as a number")); break; default: EMSG2(_(e_intern2), "get_tv_number()"); break; } if (denote == NULL) /* useful for values that must be unsigned */ n = -1; else *denote = TRUE; return n; } /* * Get the lnum from the first argument. * Also accepts ".", "$", etc., but that only works for the current buffer. * Returns -1 on error. */ static linenr_T get_tv_lnum(argvars) typval_T *argvars; { typval_T rettv; linenr_T lnum; lnum = get_tv_number_chk(&argvars[0], NULL); if (lnum == 0) /* no valid number, try using line() */ { rettv.v_type = VAR_NUMBER; f_line(argvars, &rettv); lnum = rettv.vval.v_number; clear_tv(&rettv); } return lnum; } /* * Get the lnum from the first argument. * Also accepts "$", then "buf" is used. * Returns 0 on error. */ static linenr_T get_tv_lnum_buf(argvars, buf) typval_T *argvars; buf_T *buf; { if (argvars[0].v_type == VAR_STRING && argvars[0].vval.v_string != NULL && argvars[0].vval.v_string[0] == '$' && buf != NULL) return buf->b_ml.ml_line_count; return get_tv_number_chk(&argvars[0], NULL); } /* * Get the string value of a variable. * If it is a Number variable, the number is converted into a string. * get_tv_string() uses a single, static buffer. YOU CAN ONLY USE IT ONCE! * get_tv_string_buf() uses a given buffer. * If the String variable has never been set, return an empty string. * Never returns NULL; * get_tv_string_chk() and get_tv_string_buf_chk() are similar, but return * NULL on error. */ static char_u * get_tv_string(varp) typval_T *varp; { static char_u mybuf[NUMBUFLEN]; return get_tv_string_buf(varp, mybuf); } static char_u * get_tv_string_buf(varp, buf) typval_T *varp; char_u *buf; { char_u *res = get_tv_string_buf_chk(varp, buf); return res != NULL ? res : (char_u *)""; } char_u * get_tv_string_chk(varp) typval_T *varp; { static char_u mybuf[NUMBUFLEN]; return get_tv_string_buf_chk(varp, mybuf); } static char_u * get_tv_string_buf_chk(varp, buf) typval_T *varp; char_u *buf; { switch (varp->v_type) { case VAR_NUMBER: sprintf((char *)buf, "%ld", (long)varp->vval.v_number); return buf; case VAR_FUNC: EMSG(_("E729: using Funcref as a String")); break; case VAR_LIST: EMSG(_("E730: using List as a String")); break; case VAR_DICT: EMSG(_("E731: using Dictionary as a String")); break; case VAR_STRING: if (varp->vval.v_string != NULL) return varp->vval.v_string; return (char_u *)""; default: EMSG2(_(e_intern2), "get_tv_string_buf()"); break; } return NULL; } /* * Find variable "name" in the list of variables. * Return a pointer to it if found, NULL if not found. * Careful: "a:0" variables don't have a name. * When "htp" is not NULL we are writing to the variable, set "htp" to the * hashtab_T used. */ static dictitem_T * find_var(name, htp) char_u *name; hashtab_T **htp; { char_u *varname; hashtab_T *ht; ht = find_var_ht(name, &varname); if (htp != NULL) *htp = ht; if (ht == NULL) return NULL; return find_var_in_ht(ht, varname, htp != NULL); } /* * Find variable "varname" in hashtab "ht". * Returns NULL if not found. */ static dictitem_T * find_var_in_ht(ht, varname, writing) hashtab_T *ht; char_u *varname; int writing; { hashitem_T *hi; if (*varname == NUL) { /* Must be something like "s:", otherwise "ht" would be NULL. */ switch (varname[-2]) { case 's': return &SCRIPT_SV(current_SID).sv_var; case 'g': return &globvars_var; case 'v': return &vimvars_var; case 'b': return &curbuf->b_bufvar; case 'w': return &curwin->w_winvar; #ifdef FEAT_WINDOWS case 't': return &curtab->tp_winvar; #endif case 'l': return current_funccal == NULL ? NULL : ¤t_funccal->l_vars_var; case 'a': return current_funccal == NULL ? NULL : ¤t_funccal->l_avars_var; } return NULL; } hi = hash_find(ht, varname); if (HASHITEM_EMPTY(hi)) { /* For global variables we may try auto-loading the script. If it * worked find the variable again. Don't auto-load a script if it was * loaded already, otherwise it would be loaded every time when * checking if a function name is a Funcref variable. */ if (ht == &globvarht && !writing && script_autoload(varname, FALSE) && !aborting()) hi = hash_find(ht, varname); if (HASHITEM_EMPTY(hi)) return NULL; } return HI2DI(hi); } /* * Find the hashtab used for a variable name. * Set "varname" to the start of name without ':'. */ static hashtab_T * find_var_ht(name, varname) char_u *name; char_u **varname; { hashitem_T *hi; if (name[1] != ':') { /* The name must not start with a colon or #. */ if (name[0] == ':' || name[0] == AUTOLOAD_CHAR) return NULL; *varname = name; /* "version" is "v:version" in all scopes */ hi = hash_find(&compat_hashtab, name); if (!HASHITEM_EMPTY(hi)) return &compat_hashtab; if (current_funccal == NULL) return &globvarht; /* global variable */ return ¤t_funccal->l_vars.dv_hashtab; /* l: variable */ } *varname = name + 2; if (*name == 'g') /* global variable */ return &globvarht; /* There must be no ':' or '#' in the rest of the name, unless g: is used */ if (vim_strchr(name + 2, ':') != NULL || vim_strchr(name + 2, AUTOLOAD_CHAR) != NULL) return NULL; if (*name == 'b') /* buffer variable */ return &curbuf->b_vars.dv_hashtab; if (*name == 'w') /* window variable */ return &curwin->w_vars.dv_hashtab; #ifdef FEAT_WINDOWS if (*name == 't') /* tab page variable */ return &curtab->tp_vars.dv_hashtab; #endif if (*name == 'v') /* v: variable */ return &vimvarht; if (*name == 'a' && current_funccal != NULL) /* function argument */ return ¤t_funccal->l_avars.dv_hashtab; if (*name == 'l' && current_funccal != NULL) /* local function variable */ return ¤t_funccal->l_vars.dv_hashtab; if (*name == 's' /* script variable */ && current_SID > 0 && current_SID <= ga_scripts.ga_len) return &SCRIPT_VARS(current_SID); return NULL; } /* * Get the string value of a (global/local) variable. * Returns NULL when it doesn't exist. */ char_u * get_var_value(name) char_u *name; { dictitem_T *v; v = find_var(name, NULL); if (v == NULL) return NULL; return get_tv_string(&v->di_tv); } /* * Allocate a new hashtab for a sourced script. It will be used while * sourcing this script and when executing functions defined in the script. */ void new_script_vars(id) scid_T id; { int i; hashtab_T *ht; scriptvar_T *sv; if (ga_grow(&ga_scripts, (int)(id - ga_scripts.ga_len)) == OK) { /* Re-allocating ga_data means that an ht_array pointing to * ht_smallarray becomes invalid. We can recognize this: ht_mask is * at its init value. Also reset "v_dict", it's always the same. */ for (i = 1; i <= ga_scripts.ga_len; ++i) { ht = &SCRIPT_VARS(i); if (ht->ht_mask == HT_INIT_SIZE - 1) ht->ht_array = ht->ht_smallarray; sv = &SCRIPT_SV(i); sv->sv_var.di_tv.vval.v_dict = &sv->sv_dict; } while (ga_scripts.ga_len < id) { sv = &SCRIPT_SV(ga_scripts.ga_len + 1); init_var_dict(&sv->sv_dict, &sv->sv_var); ++ga_scripts.ga_len; } } } /* * Initialize dictionary "dict" as a scope and set variable "dict_var" to * point to it. */ void init_var_dict(dict, dict_var) dict_T *dict; dictitem_T *dict_var; { hash_init(&dict->dv_hashtab); dict->dv_refcount = 99999; dict_var->di_tv.vval.v_dict = dict; dict_var->di_tv.v_type = VAR_DICT; dict_var->di_tv.v_lock = VAR_FIXED; dict_var->di_flags = DI_FLAGS_RO | DI_FLAGS_FIX; dict_var->di_key[0] = NUL; } /* * Clean up a list of internal variables. * Frees all allocated variables and the value they contain. * Clears hashtab "ht", does not free it. */ void vars_clear(ht) hashtab_T *ht; { vars_clear_ext(ht, TRUE); } /* * Like vars_clear(), but only free the value if "free_val" is TRUE. */ static void vars_clear_ext(ht, free_val) hashtab_T *ht; int free_val; { int todo; hashitem_T *hi; dictitem_T *v; hash_lock(ht); todo = (int)ht->ht_used; for (hi = ht->ht_array; todo > 0; ++hi) { if (!HASHITEM_EMPTY(hi)) { --todo; /* Free the variable. Don't remove it from the hashtab, * ht_array might change then. hash_clear() takes care of it * later. */ v = HI2DI(hi); if (free_val) clear_tv(&v->di_tv); if ((v->di_flags & DI_FLAGS_FIX) == 0) vim_free(v); } } hash_clear(ht); ht->ht_used = 0; } /* * Delete a variable from hashtab "ht" at item "hi". * Clear the variable value and free the dictitem. */ static void delete_var(ht, hi) hashtab_T *ht; hashitem_T *hi; { dictitem_T *di = HI2DI(hi); hash_remove(ht, hi); clear_tv(&di->di_tv); vim_free(di); } /* * List the value of one internal variable. */ static void list_one_var(v, prefix) dictitem_T *v; char_u *prefix; { char_u *tofree; char_u *s; char_u numbuf[NUMBUFLEN]; s = echo_string(&v->di_tv, &tofree, numbuf, ++current_copyID); list_one_var_a(prefix, v->di_key, v->di_tv.v_type, s == NULL ? (char_u *)"" : s); vim_free(tofree); } static void list_one_var_a(prefix, name, type, string) char_u *prefix; char_u *name; int type; char_u *string; { msg_attr(prefix, 0); /* don't use msg(), it overwrites "v:statusmsg" */ if (name != NULL) /* "a:" vars don't have a name stored */ msg_puts(name); msg_putchar(' '); msg_advance(22); if (type == VAR_NUMBER) msg_putchar('#'); else if (type == VAR_FUNC) msg_putchar('*'); else if (type == VAR_LIST) { msg_putchar('['); if (*string == '[') ++string; } else if (type == VAR_DICT) { msg_putchar('{'); if (*string == '{') ++string; } else msg_putchar(' '); msg_outtrans(string); if (type == VAR_FUNC) msg_puts((char_u *)"()"); } /* * Set variable "name" to value in "tv". * If the variable already exists, the value is updated. * Otherwise the variable is created. */ static void set_var(name, tv, copy) char_u *name; typval_T *tv; int copy; /* make copy of value in "tv" */ { dictitem_T *v; char_u *varname; hashtab_T *ht; char_u *p; if (tv->v_type == VAR_FUNC) { if (!(vim_strchr((char_u *)"wbs", name[0]) != NULL && name[1] == ':') && !ASCII_ISUPPER((name[0] != NUL && name[1] == ':') ? name[2] : name[0])) { EMSG2(_("E704: Funcref variable name must start with a capital: %s"), name); return; } if (function_exists(name)) { EMSG2(_("E705: Variable name conflicts with existing function: %s"), name); return; } } ht = find_var_ht(name, &varname); if (ht == NULL || *varname == NUL) { EMSG2(_(e_illvar), name); return; } v = find_var_in_ht(ht, varname, TRUE); if (v != NULL) { /* existing variable, need to clear the value */ if (var_check_ro(v->di_flags, name) || tv_check_lock(v->di_tv.v_lock, name)) return; if (v->di_tv.v_type != tv->v_type && !((v->di_tv.v_type == VAR_STRING || v->di_tv.v_type == VAR_NUMBER) && (tv->v_type == VAR_STRING || tv->v_type == VAR_NUMBER))) { EMSG2(_("E706: Variable type mismatch for: %s"), name); return; } /* * Handle setting internal v: variables separately: we don't change * the type. */ if (ht == &vimvarht) { if (v->di_tv.v_type == VAR_STRING) { vim_free(v->di_tv.vval.v_string); if (copy || tv->v_type != VAR_STRING) v->di_tv.vval.v_string = vim_strsave(get_tv_string(tv)); else { /* Take over the string to avoid an extra alloc/free. */ v->di_tv.vval.v_string = tv->vval.v_string; tv->vval.v_string = NULL; } } else if (v->di_tv.v_type != VAR_NUMBER) EMSG2(_(e_intern2), "set_var()"); else v->di_tv.vval.v_number = get_tv_number(tv); return; } clear_tv(&v->di_tv); } else /* add a new variable */ { /* Can't add "v:" variable. */ if (ht == &vimvarht) { EMSG2(_(e_illvar), name); return; } /* Make sure the variable name is valid. */ for (p = varname; *p != NUL; ++p) if (!eval_isnamec1(*p) && (p == varname || !VIM_ISDIGIT(*p)) && *p != AUTOLOAD_CHAR) { EMSG2(_(e_illvar), varname); return; } v = (dictitem_T *)alloc((unsigned)(sizeof(dictitem_T) + STRLEN(varname))); if (v == NULL) return; STRCPY(v->di_key, varname); if (hash_add(ht, DI2HIKEY(v)) == FAIL) { vim_free(v); return; } v->di_flags = 0; } if (copy || tv->v_type == VAR_NUMBER) copy_tv(tv, &v->di_tv); else { v->di_tv = *tv; v->di_tv.v_lock = 0; init_tv(tv); } } /* * Return TRUE if di_flags "flags" indicates variable "name" is read-only. * Also give an error message. */ static int var_check_ro(flags, name) int flags; char_u *name; { if (flags & DI_FLAGS_RO) { EMSG2(_(e_readonlyvar), name); return TRUE; } if ((flags & DI_FLAGS_RO_SBX) && sandbox) { EMSG2(_(e_readonlysbx), name); return TRUE; } return FALSE; } /* * Return TRUE if di_flags "flags" indicates variable "name" is fixed. * Also give an error message. */ static int var_check_fixed(flags, name) int flags; char_u *name; { if (flags & DI_FLAGS_FIX) { EMSG2(_("E795: Cannot delete variable %s"), name); return TRUE; } return FALSE; } /* * Return TRUE if typeval "tv" is set to be locked (immutable). * Also give an error message, using "name". */ static int tv_check_lock(lock, name) int lock; char_u *name; { if (lock & VAR_LOCKED) { EMSG2(_("E741: Value is locked: %s"), name == NULL ? (char_u *)_("Unknown") : name); return TRUE; } if (lock & VAR_FIXED) { EMSG2(_("E742: Cannot change value of %s"), name == NULL ? (char_u *)_("Unknown") : name); return TRUE; } return FALSE; } /* * Copy the values from typval_T "from" to typval_T "to". * When needed allocates string or increases reference count. * Does not make a copy of a list or dict but copies the reference! */ static void copy_tv(from, to) typval_T *from; typval_T *to; { to->v_type = from->v_type; to->v_lock = 0; switch (from->v_type) { case VAR_NUMBER: to->vval.v_number = from->vval.v_number; break; case VAR_STRING: case VAR_FUNC: if (from->vval.v_string == NULL) to->vval.v_string = NULL; else { to->vval.v_string = vim_strsave(from->vval.v_string); if (from->v_type == VAR_FUNC) func_ref(to->vval.v_string); } break; case VAR_LIST: if (from->vval.v_list == NULL) to->vval.v_list = NULL; else { to->vval.v_list = from->vval.v_list; ++to->vval.v_list->lv_refcount; } break; case VAR_DICT: if (from->vval.v_dict == NULL) to->vval.v_dict = NULL; else { to->vval.v_dict = from->vval.v_dict; ++to->vval.v_dict->dv_refcount; } break; default: EMSG2(_(e_intern2), "copy_tv()"); break; } } /* * Make a copy of an item. * Lists and Dictionaries are also copied. A deep copy if "deep" is set. * For deepcopy() "copyID" is zero for a full copy or the ID for when a * reference to an already copied list/dict can be used. * Returns FAIL or OK. */ static int item_copy(from, to, deep, copyID) typval_T *from; typval_T *to; int deep; int copyID; { static int recurse = 0; int ret = OK; if (recurse >= DICT_MAXNEST) { EMSG(_("E698: variable nested too deep for making a copy")); return FAIL; } ++recurse; switch (from->v_type) { case VAR_NUMBER: case VAR_STRING: case VAR_FUNC: copy_tv(from, to); break; case VAR_LIST: to->v_type = VAR_LIST; to->v_lock = 0; if (from->vval.v_list == NULL) to->vval.v_list = NULL; else if (copyID != 0 && from->vval.v_list->lv_copyID == copyID) { /* use the copy made earlier */ to->vval.v_list = from->vval.v_list->lv_copylist; ++to->vval.v_list->lv_refcount; } else to->vval.v_list = list_copy(from->vval.v_list, deep, copyID); if (to->vval.v_list == NULL) ret = FAIL; break; case VAR_DICT: to->v_type = VAR_DICT; to->v_lock = 0; if (from->vval.v_dict == NULL) to->vval.v_dict = NULL; else if (copyID != 0 && from->vval.v_dict->dv_copyID == copyID) { /* use the copy made earlier */ to->vval.v_dict = from->vval.v_dict->dv_copydict; ++to->vval.v_dict->dv_refcount; } else to->vval.v_dict = dict_copy(from->vval.v_dict, deep, copyID); if (to->vval.v_dict == NULL) ret = FAIL; break; default: EMSG2(_(e_intern2), "item_copy()"); ret = FAIL; } --recurse; return ret; } /* * ":echo expr1 ..." print each argument separated with a space, add a * newline at the end. * ":echon expr1 ..." print each argument plain. */ void ex_echo(eap) exarg_T *eap; { char_u *arg = eap->arg; typval_T rettv; char_u *tofree; char_u *p; int needclr = TRUE; int atstart = TRUE; char_u numbuf[NUMBUFLEN]; if (eap->skip) ++emsg_skip; while (*arg != NUL && *arg != '|' && *arg != '\n' && !got_int) { p = arg; if (eval1(&arg, &rettv, !eap->skip) == FAIL) { /* * Report the invalid expression unless the expression evaluation * has been cancelled due to an aborting error, an interrupt, or an * exception. */ if (!aborting()) EMSG2(_(e_invexpr2), p); break; } if (!eap->skip) { if (atstart) { atstart = FALSE; /* Call msg_start() after eval1(), evaluating the expression * may cause a message to appear. */ if (eap->cmdidx == CMD_echo) msg_start(); } else if (eap->cmdidx == CMD_echo) msg_puts_attr((char_u *)" ", echo_attr); p = echo_string(&rettv, &tofree, numbuf, ++current_copyID); if (p != NULL) for ( ; *p != NUL && !got_int; ++p) { if (*p == '\n' || *p == '\r' || *p == TAB) { if (*p != TAB && needclr) { /* remove any text still there from the command */ msg_clr_eos(); needclr = FALSE; } msg_putchar_attr(*p, echo_attr); } else { #ifdef FEAT_MBYTE if (has_mbyte) { int i = (*mb_ptr2len)(p); (void)msg_outtrans_len_attr(p, i, echo_attr); p += i - 1; } else #endif (void)msg_outtrans_len_attr(p, 1, echo_attr); } } vim_free(tofree); } clear_tv(&rettv); arg = skipwhite(arg); } eap->nextcmd = check_nextcmd(arg); if (eap->skip) --emsg_skip; else { /* remove text that may still be there from the command */ if (needclr) msg_clr_eos(); if (eap->cmdidx == CMD_echo) msg_end(); } } /* * ":echohl {name}". */ void ex_echohl(eap) exarg_T *eap; { int id; id = syn_name2id(eap->arg); if (id == 0) echo_attr = 0; else echo_attr = syn_id2attr(id); } /* * ":execute expr1 ..." execute the result of an expression. * ":echomsg expr1 ..." Print a message * ":echoerr expr1 ..." Print an error * Each gets spaces around each argument and a newline at the end for * echo commands */ void ex_execute(eap) exarg_T *eap; { char_u *arg = eap->arg; typval_T rettv; int ret = OK; char_u *p; garray_T ga; int len; int save_did_emsg; ga_init2(&ga, 1, 80); if (eap->skip) ++emsg_skip; while (*arg != NUL && *arg != '|' && *arg != '\n') { p = arg; if (eval1(&arg, &rettv, !eap->skip) == FAIL) { /* * Report the invalid expression unless the expression evaluation * has been cancelled due to an aborting error, an interrupt, or an * exception. */ if (!aborting()) EMSG2(_(e_invexpr2), p); ret = FAIL; break; } if (!eap->skip) { p = get_tv_string(&rettv); len = (int)STRLEN(p); if (ga_grow(&ga, len + 2) == FAIL) { clear_tv(&rettv); ret = FAIL; break; } if (ga.ga_len) ((char_u *)(ga.ga_data))[ga.ga_len++] = ' '; STRCPY((char_u *)(ga.ga_data) + ga.ga_len, p); ga.ga_len += len; } clear_tv(&rettv); arg = skipwhite(arg); } if (ret != FAIL && ga.ga_data != NULL) { if (eap->cmdidx == CMD_echomsg) { MSG_ATTR(ga.ga_data, echo_attr); out_flush(); } else if (eap->cmdidx == CMD_echoerr) { /* We don't want to abort following commands, restore did_emsg. */ save_did_emsg = did_emsg; EMSG((char_u *)ga.ga_data); if (!force_abort) did_emsg = save_did_emsg; } else if (eap->cmdidx == CMD_execute) do_cmdline((char_u *)ga.ga_data, eap->getline, eap->cookie, DOCMD_NOWAIT|DOCMD_VERBOSE); } ga_clear(&ga); if (eap->skip) --emsg_skip; eap->nextcmd = check_nextcmd(arg); } /* * Skip over the name of an option: "&option", "&g:option" or "&l:option". * "arg" points to the "&" or '+' when called, to "option" when returning. * Returns NULL when no option name found. Otherwise pointer to the char * after the option name. */ static char_u * find_option_end(arg, opt_flags) char_u **arg; int *opt_flags; { char_u *p = *arg; ++p; if (*p == 'g' && p[1] == ':') { *opt_flags = OPT_GLOBAL; p += 2; } else if (*p == 'l' && p[1] == ':') { *opt_flags = OPT_LOCAL; p += 2; } else *opt_flags = 0; if (!ASCII_ISALPHA(*p)) return NULL; *arg = p; if (p[0] == 't' && p[1] == '_' && p[2] != NUL && p[3] != NUL) p += 4; /* termcap option */ else while (ASCII_ISALPHA(*p)) ++p; return p; } /* * ":function" */ void ex_function(eap) exarg_T *eap; { char_u *theline; int j; int c; int saved_did_emsg; char_u *name = NULL; char_u *p; char_u *arg; char_u *line_arg = NULL; garray_T newargs; garray_T newlines; int varargs = FALSE; int mustend = FALSE; int flags = 0; ufunc_T *fp; int indent; int nesting; char_u *skip_until = NULL; dictitem_T *v; funcdict_T fudi; static int func_nr = 0; /* number for nameless function */ int paren; hashtab_T *ht; int todo; hashitem_T *hi; int sourcing_lnum_off; /* * ":function" without argument: list functions. */ if (ends_excmd(*eap->arg)) { if (!eap->skip) { todo = (int)func_hashtab.ht_used; for (hi = func_hashtab.ht_array; todo > 0 && !got_int; ++hi) { if (!HASHITEM_EMPTY(hi)) { --todo; fp = HI2UF(hi); if (!isdigit(*fp->uf_name)) list_func_head(fp, FALSE); } } } eap->nextcmd = check_nextcmd(eap->arg); return; } /* * ":function /pat": list functions matching pattern. */ if (*eap->arg == '/') { p = skip_regexp(eap->arg + 1, '/', TRUE, NULL); if (!eap->skip) { regmatch_T regmatch; c = *p; *p = NUL; regmatch.regprog = vim_regcomp(eap->arg + 1, RE_MAGIC); *p = c; if (regmatch.regprog != NULL) { regmatch.rm_ic = p_ic; todo = (int)func_hashtab.ht_used; for (hi = func_hashtab.ht_array; todo > 0 && !got_int; ++hi) { if (!HASHITEM_EMPTY(hi)) { --todo; fp = HI2UF(hi); if (!isdigit(*fp->uf_name) && vim_regexec(®match, fp->uf_name, 0)) list_func_head(fp, FALSE); } } } } if (*p == '/') ++p; eap->nextcmd = check_nextcmd(p); return; } /* * Get the function name. There are these situations: * func normal function name * "name" == func, "fudi.fd_dict" == NULL * dict.func new dictionary entry * "name" == NULL, "fudi.fd_dict" set, * "fudi.fd_di" == NULL, "fudi.fd_newkey" == func * dict.func existing dict entry with a Funcref * "name" == func, "fudi.fd_dict" set, * "fudi.fd_di" set, "fudi.fd_newkey" == NULL * dict.func existing dict entry that's not a Funcref * "name" == NULL, "fudi.fd_dict" set, * "fudi.fd_di" set, "fudi.fd_newkey" == NULL */ p = eap->arg; name = trans_function_name(&p, eap->skip, 0, &fudi); paren = (vim_strchr(p, '(') != NULL); if (name == NULL && (fudi.fd_dict == NULL || !paren) && !eap->skip) { /* * Return on an invalid expression in braces, unless the expression * evaluation has been cancelled due to an aborting error, an * interrupt, or an exception. */ if (!aborting()) { if (!eap->skip && fudi.fd_newkey != NULL) EMSG2(_(e_dictkey), fudi.fd_newkey); vim_free(fudi.fd_newkey); return; } else eap->skip = TRUE; } /* An error in a function call during evaluation of an expression in magic * braces should not cause the function not to be defined. */ saved_did_emsg = did_emsg; did_emsg = FALSE; /* * ":function func" with only function name: list function. */ if (!paren) { if (!ends_excmd(*skipwhite(p))) { EMSG(_(e_trailing)); goto ret_free; } eap->nextcmd = check_nextcmd(p); if (eap->nextcmd != NULL) *p = NUL; if (!eap->skip && !got_int) { fp = find_func(name); if (fp != NULL) { list_func_head(fp, TRUE); for (j = 0; j < fp->uf_lines.ga_len && !got_int; ++j) { if (FUNCLINE(fp, j) == NULL) continue; msg_putchar('\n'); msg_outnum((long)(j + 1)); if (j < 9) msg_putchar(' '); if (j < 99) msg_putchar(' '); msg_prt_line(FUNCLINE(fp, j), FALSE); out_flush(); /* show a line at a time */ ui_breakcheck(); } if (!got_int) { msg_putchar('\n'); msg_puts((char_u *)" endfunction"); } } else emsg_funcname("E123: Undefined function: %s", name); } goto ret_free; } /* * ":function name(arg1, arg2)" Define function. */ p = skipwhite(p); if (*p != '(') { if (!eap->skip) { EMSG2(_("E124: Missing '(': %s"), eap->arg); goto ret_free; } /* attempt to continue by skipping some text */ if (vim_strchr(p, '(') != NULL) p = vim_strchr(p, '('); } p = skipwhite(p + 1); ga_init2(&newargs, (int)sizeof(char_u *), 3); ga_init2(&newlines, (int)sizeof(char_u *), 3); if (!eap->skip) { /* Check the name of the function. Unless it's a dictionary function * (that we are overwriting). */ if (name != NULL) arg = name; else arg = fudi.fd_newkey; if (arg != NULL && (fudi.fd_di == NULL || fudi.fd_di->di_tv.v_type != VAR_FUNC)) { if (*arg == K_SPECIAL) j = 3; else j = 0; while (arg[j] != NUL && (j == 0 ? eval_isnamec1(arg[j]) : eval_isnamec(arg[j]))) ++j; if (arg[j] != NUL) emsg_funcname(_(e_invarg2), arg); } } /* * Isolate the arguments: "arg1, arg2, ...)" */ while (*p != ')') { if (p[0] == '.' && p[1] == '.' && p[2] == '.') { varargs = TRUE; p += 3; mustend = TRUE; } else { arg = p; while (ASCII_ISALNUM(*p) || *p == '_') ++p; if (arg == p || isdigit(*arg) || (p - arg == 9 && STRNCMP(arg, "firstline", 9) == 0) || (p - arg == 8 && STRNCMP(arg, "lastline", 8) == 0)) { if (!eap->skip) EMSG2(_("E125: Illegal argument: %s"), arg); break; } if (ga_grow(&newargs, 1) == FAIL) goto erret; c = *p; *p = NUL; arg = vim_strsave(arg); if (arg == NULL) goto erret; ((char_u **)(newargs.ga_data))[newargs.ga_len] = arg; *p = c; newargs.ga_len++; if (*p == ',') ++p; else mustend = TRUE; } p = skipwhite(p); if (mustend && *p != ')') { if (!eap->skip) EMSG2(_(e_invarg2), eap->arg); break; } } ++p; /* skip the ')' */ /* find extra arguments "range", "dict" and "abort" */ for (;;) { p = skipwhite(p); if (STRNCMP(p, "range", 5) == 0) { flags |= FC_RANGE; p += 5; } else if (STRNCMP(p, "dict", 4) == 0) { flags |= FC_DICT; p += 4; } else if (STRNCMP(p, "abort", 5) == 0) { flags |= FC_ABORT; p += 5; } else break; } /* When there is a line break use what follows for the function body. * Makes 'exe "func Test()\n...\nendfunc"' work. */ if (*p == '\n') line_arg = p + 1; else if (*p != NUL && *p != '"' && !eap->skip && !did_emsg) EMSG(_(e_trailing)); /* * Read the body of the function, until ":endfunction" is found. */ if (KeyTyped) { /* Check if the function already exists, don't let the user type the * whole function before telling him it doesn't work! For a script we * need to skip the body to be able to find what follows. */ if (!eap->skip && !eap->forceit) { if (fudi.fd_dict != NULL && fudi.fd_newkey == NULL) EMSG(_(e_funcdict)); else if (name != NULL && find_func(name) != NULL) emsg_funcname(e_funcexts, name); } if (!eap->skip && did_emsg) goto erret; msg_putchar('\n'); /* don't overwrite the function name */ cmdline_row = msg_row; } indent = 2; nesting = 0; for (;;) { msg_scroll = TRUE; need_wait_return = FALSE; sourcing_lnum_off = sourcing_lnum; if (line_arg != NULL) { /* Use eap->arg, split up in parts by line breaks. */ theline = line_arg; p = vim_strchr(theline, '\n'); if (p == NULL) line_arg += STRLEN(line_arg); else { *p = NUL; line_arg = p + 1; } } else if (eap->getline == NULL) theline = getcmdline(':', 0L, indent); else theline = eap->getline(':', eap->cookie, indent); if (KeyTyped) lines_left = Rows - 1; if (theline == NULL) { EMSG(_("E126: Missing :endfunction")); goto erret; } /* Detect line continuation: sourcing_lnum increased more than one. */ if (sourcing_lnum > sourcing_lnum_off + 1) sourcing_lnum_off = sourcing_lnum - sourcing_lnum_off - 1; else sourcing_lnum_off = 0; if (skip_until != NULL) { /* between ":append" and "." and between ":python <<EOF" and "EOF" * don't check for ":endfunc". */ if (STRCMP(theline, skip_until) == 0) { vim_free(skip_until); skip_until = NULL; } } else { /* skip ':' and blanks*/ for (p = theline; vim_iswhite(*p) || *p == ':'; ++p) ; /* Check for "endfunction". */ if (checkforcmd(&p, "endfunction", 4) && nesting-- == 0) { if (line_arg == NULL) vim_free(theline); break; } /* Increase indent inside "if", "while", "for" and "try", decrease * at "end". */ if (indent > 2 && STRNCMP(p, "end", 3) == 0) indent -= 2; else if (STRNCMP(p, "if", 2) == 0 || STRNCMP(p, "wh", 2) == 0 || STRNCMP(p, "for", 3) == 0 || STRNCMP(p, "try", 3) == 0) indent += 2; /* Check for defining a function inside this function. */ if (checkforcmd(&p, "function", 2)) { if (*p == '!') p = skipwhite(p + 1); p += eval_fname_script(p); if (ASCII_ISALPHA(*p)) { vim_free(trans_function_name(&p, TRUE, 0, NULL)); if (*skipwhite(p) == '(') { ++nesting; indent += 2; } } } /* Check for ":append" or ":insert". */ p = skip_range(p, NULL); if ((p[0] == 'a' && (!ASCII_ISALPHA(p[1]) || p[1] == 'p')) || (p[0] == 'i' && (!ASCII_ISALPHA(p[1]) || (p[1] == 'n' && (!ASCII_ISALPHA(p[2]) || (p[2] == 's')))))) skip_until = vim_strsave((char_u *)"."); /* Check for ":python <<EOF", ":tcl <<EOF", etc. */ arg = skipwhite(skiptowhite(p)); if (arg[0] == '<' && arg[1] =='<' && ((p[0] == 'p' && p[1] == 'y' && (!ASCII_ISALPHA(p[2]) || p[2] == 't')) || (p[0] == 'p' && p[1] == 'e' && (!ASCII_ISALPHA(p[2]) || p[2] == 'r')) || (p[0] == 't' && p[1] == 'c' && (!ASCII_ISALPHA(p[2]) || p[2] == 'l')) || (p[0] == 'r' && p[1] == 'u' && p[2] == 'b' && (!ASCII_ISALPHA(p[3]) || p[3] == 'y')) || (p[0] == 'm' && p[1] == 'z' && (!ASCII_ISALPHA(p[2]) || p[2] == 's')) )) { /* ":python <<" continues until a dot, like ":append" */ p = skipwhite(arg + 2); if (*p == NUL) skip_until = vim_strsave((char_u *)"."); else skip_until = vim_strsave(p); } } /* Add the line to the function. */ if (ga_grow(&newlines, 1 + sourcing_lnum_off) == FAIL) { if (line_arg == NULL) vim_free(theline); goto erret; } /* Copy the line to newly allocated memory. get_one_sourceline() * allocates 250 bytes per line, this saves 80% on average. The cost * is an extra alloc/free. */ p = vim_strsave(theline); if (p != NULL) { if (line_arg == NULL) vim_free(theline); theline = p; } ((char_u **)(newlines.ga_data))[newlines.ga_len++] = theline; /* Add NULL lines for continuation lines, so that the line count is * equal to the index in the growarray. */ while (sourcing_lnum_off-- > 0) ((char_u **)(newlines.ga_data))[newlines.ga_len++] = NULL; /* Check for end of eap->arg. */ if (line_arg != NULL && *line_arg == NUL) line_arg = NULL; } /* Don't define the function when skipping commands or when an error was * detected. */ if (eap->skip || did_emsg) goto erret; /* * If there are no errors, add the function */ if (fudi.fd_dict == NULL) { v = find_var(name, &ht); if (v != NULL && v->di_tv.v_type == VAR_FUNC) { emsg_funcname("E707: Function name conflicts with variable: %s", name); goto erret; } fp = find_func(name); if (fp != NULL) { if (!eap->forceit) { emsg_funcname(e_funcexts, name); goto erret; } if (fp->uf_calls > 0) { emsg_funcname("E127: Cannot redefine function %s: It is in use", name); goto erret; } /* redefine existing function */ ga_clear_strings(&(fp->uf_args)); ga_clear_strings(&(fp->uf_lines)); vim_free(name); name = NULL; } } else { char numbuf[20]; fp = NULL; if (fudi.fd_newkey == NULL && !eap->forceit) { EMSG(_(e_funcdict)); goto erret; } if (fudi.fd_di == NULL) { /* Can't add a function to a locked dictionary */ if (tv_check_lock(fudi.fd_dict->dv_lock, eap->arg)) goto erret; } /* Can't change an existing function if it is locked */ else if (tv_check_lock(fudi.fd_di->di_tv.v_lock, eap->arg)) goto erret; /* Give the function a sequential number. Can only be used with a * Funcref! */ vim_free(name); sprintf(numbuf, "%d", ++func_nr); name = vim_strsave((char_u *)numbuf); if (name == NULL) goto erret; } if (fp == NULL) { if (fudi.fd_dict == NULL && vim_strchr(name, AUTOLOAD_CHAR) != NULL) { int slen, plen; char_u *scriptname; /* Check that the autoload name matches the script name. */ j = FAIL; if (sourcing_name != NULL) { scriptname = autoload_name(name); if (scriptname != NULL) { p = vim_strchr(scriptname, '/'); plen = (int)STRLEN(p); slen = (int)STRLEN(sourcing_name); if (slen > plen && fnamecmp(p, sourcing_name + slen - plen) == 0) j = OK; vim_free(scriptname); } } if (j == FAIL) { EMSG2(_("E746: Function name does not match script file name: %s"), name); goto erret; } } fp = (ufunc_T *)alloc((unsigned)(sizeof(ufunc_T) + STRLEN(name))); if (fp == NULL) goto erret; if (fudi.fd_dict != NULL) { if (fudi.fd_di == NULL) { /* add new dict entry */ fudi.fd_di = dictitem_alloc(fudi.fd_newkey); if (fudi.fd_di == NULL) { vim_free(fp); goto erret; } if (dict_add(fudi.fd_dict, fudi.fd_di) == FAIL) { vim_free(fudi.fd_di); vim_free(fp); goto erret; } } else /* overwrite existing dict entry */ clear_tv(&fudi.fd_di->di_tv); fudi.fd_di->di_tv.v_type = VAR_FUNC; fudi.fd_di->di_tv.v_lock = 0; fudi.fd_di->di_tv.vval.v_string = vim_strsave(name); fp->uf_refcount = 1; /* behave like "dict" was used */ flags |= FC_DICT; } /* insert the new function in the function list */ STRCPY(fp->uf_name, name); hash_add(&func_hashtab, UF2HIKEY(fp)); } fp->uf_args = newargs; fp->uf_lines = newlines; #ifdef FEAT_PROFILE fp->uf_tml_count = NULL; fp->uf_tml_total = NULL; fp->uf_tml_self = NULL; fp->uf_profiling = FALSE; if (prof_def_func()) func_do_profile(fp); #endif fp->uf_varargs = varargs; fp->uf_flags = flags; fp->uf_calls = 0; fp->uf_script_ID = current_SID; goto ret_free; erret: ga_clear_strings(&newargs); ga_clear_strings(&newlines); ret_free: vim_free(skip_until); vim_free(fudi.fd_newkey); vim_free(name); did_emsg |= saved_did_emsg; } /* * Get a function name, translating "<SID>" and "<SNR>". * Also handles a Funcref in a List or Dictionary. * Returns the function name in allocated memory, or NULL for failure. * flags: * TFN_INT: internal function name OK * TFN_QUIET: be quiet * Advances "pp" to just after the function name (if no error). */ static char_u * trans_function_name(pp, skip, flags, fdp) char_u **pp; int skip; /* only find the end, don't evaluate */ int flags; funcdict_T *fdp; /* return: info about dictionary used */ { char_u *name = NULL; char_u *start; char_u *end; int lead; char_u sid_buf[20]; int len; lval_T lv; if (fdp != NULL) vim_memset(fdp, 0, sizeof(funcdict_T)); start = *pp; /* Check for hard coded <SNR>: already translated function ID (from a user * command). */ if ((*pp)[0] == K_SPECIAL && (*pp)[1] == KS_EXTRA && (*pp)[2] == (int)KE_SNR) { *pp += 3; len = get_id_len(pp) + 3; return vim_strnsave(start, len); } /* A name starting with "<SID>" or "<SNR>" is local to a script. But * don't skip over "s:", get_lval() needs it for "s:dict.func". */ lead = eval_fname_script(start); if (lead > 2) start += lead; end = get_lval(start, NULL, &lv, FALSE, skip, flags & TFN_QUIET, lead > 2 ? 0 : FNE_CHECK_START); if (end == start) { if (!skip) EMSG(_("E129: Function name required")); goto theend; } if (end == NULL || (lv.ll_tv != NULL && (lead > 2 || lv.ll_range))) { /* * Report an invalid expression in braces, unless the expression * evaluation has been cancelled due to an aborting error, an * interrupt, or an exception. */ if (!aborting()) { if (end != NULL) EMSG2(_(e_invarg2), start); } else *pp = find_name_end(start, NULL, NULL, FNE_INCL_BR); goto theend; } if (lv.ll_tv != NULL) { if (fdp != NULL) { fdp->fd_dict = lv.ll_dict; fdp->fd_newkey = lv.ll_newkey; lv.ll_newkey = NULL; fdp->fd_di = lv.ll_di; } if (lv.ll_tv->v_type == VAR_FUNC && lv.ll_tv->vval.v_string != NULL) { name = vim_strsave(lv.ll_tv->vval.v_string); *pp = end; } else { if (!skip && !(flags & TFN_QUIET) && (fdp == NULL || lv.ll_dict == NULL || fdp->fd_newkey == NULL)) EMSG(_(e_funcref)); else *pp = end; name = NULL; } goto theend; } if (lv.ll_name == NULL) { /* Error found, but continue after the function name. */ *pp = end; goto theend; } if (lv.ll_exp_name != NULL) { len = (int)STRLEN(lv.ll_exp_name); if (lead <= 2 && lv.ll_name == lv.ll_exp_name && STRNCMP(lv.ll_name, "s:", 2) == 0) { /* When there was "s:" already or the name expanded to get a * leading "s:" then remove it. */ lv.ll_name += 2; len -= 2; lead = 2; } } else { if (lead == 2) /* skip over "s:" */ lv.ll_name += 2; len = (int)(end - lv.ll_name); } /* * Copy the function name to allocated memory. * Accept <SID>name() inside a script, translate into <SNR>123_name(). * Accept <SNR>123_name() outside a script. */ if (skip) lead = 0; /* do nothing */ else if (lead > 0) { lead = 3; if ((lv.ll_exp_name != NULL && eval_fname_sid(lv.ll_exp_name)) || eval_fname_sid(*pp)) { /* It's "s:" or "<SID>" */ if (current_SID <= 0) { EMSG(_(e_usingsid)); goto theend; } sprintf((char *)sid_buf, "%ld_", (long)current_SID); lead += (int)STRLEN(sid_buf); } } else if (!(flags & TFN_INT) && builtin_function(lv.ll_name)) { EMSG2(_("E128: Function name must start with a capital or contain a colon: %s"), lv.ll_name); goto theend; } name = alloc((unsigned)(len + lead + 1)); if (name != NULL) { if (lead > 0) { name[0] = K_SPECIAL; name[1] = KS_EXTRA; name[2] = (int)KE_SNR; if (lead > 3) /* If it's "<SID>" */ STRCPY(name + 3, sid_buf); } mch_memmove(name + lead, lv.ll_name, (size_t)len); name[len + lead] = NUL; } *pp = end; theend: clear_lval(&lv); return name; } /* * Return 5 if "p" starts with "<SID>" or "<SNR>" (ignoring case). * Return 2 if "p" starts with "s:". * Return 0 otherwise. */ static int eval_fname_script(p) char_u *p; { if (p[0] == '<' && (STRNICMP(p + 1, "SID>", 4) == 0 || STRNICMP(p + 1, "SNR>", 4) == 0)) return 5; if (p[0] == 's' && p[1] == ':') return 2; return 0; } /* * Return TRUE if "p" starts with "<SID>" or "s:". * Only works if eval_fname_script() returned non-zero for "p"! */ static int eval_fname_sid(p) char_u *p; { return (*p == 's' || TOUPPER_ASC(p[2]) == 'I'); } /* * List the head of the function: "name(arg1, arg2)". */ static void list_func_head(fp, indent) ufunc_T *fp; int indent; { int j; msg_start(); if (indent) MSG_PUTS(" "); MSG_PUTS("function "); if (fp->uf_name[0] == K_SPECIAL) { MSG_PUTS_ATTR("<SNR>", hl_attr(HLF_8)); msg_puts(fp->uf_name + 3); } else msg_puts(fp->uf_name); msg_putchar('('); for (j = 0; j < fp->uf_args.ga_len; ++j) { if (j) MSG_PUTS(", "); msg_puts(FUNCARG(fp, j)); } if (fp->uf_varargs) { if (j) MSG_PUTS(", "); MSG_PUTS("..."); } msg_putchar(')'); msg_clr_eos(); if (p_verbose > 0) last_set_msg(fp->uf_script_ID); } /* * Find a function by name, return pointer to it in ufuncs. * Return NULL for unknown function. */ static ufunc_T * find_func(name) char_u *name; { hashitem_T *hi; hi = hash_find(&func_hashtab, name); if (!HASHITEM_EMPTY(hi)) return HI2UF(hi); return NULL; } #if defined(EXITFREE) || defined(PROTO) void free_all_functions() { hashitem_T *hi; /* Need to start all over every time, because func_free() may change the * hash table. */ while (func_hashtab.ht_used > 0) for (hi = func_hashtab.ht_array; ; ++hi) if (!HASHITEM_EMPTY(hi)) { func_free(HI2UF(hi)); break; } } #endif /* * Return TRUE if a function "name" exists. */ static int function_exists(name) char_u *name; { char_u *nm = name; char_u *p; int n = FALSE; p = trans_function_name(&nm, FALSE, TFN_INT|TFN_QUIET, NULL); nm = skipwhite(nm); /* Only accept "funcname", "funcname ", "funcname (..." and * "funcname(...", not "funcname!...". */ if (p != NULL && (*nm == NUL || *nm == '(')) { if (builtin_function(p)) n = (find_internal_func(p) >= 0); else n = (find_func(p) != NULL); } vim_free(p); return n; } /* * Return TRUE if "name" looks like a builtin function name: starts with a * lower case letter and doesn't contain a ':' or AUTOLOAD_CHAR. */ static int builtin_function(name) char_u *name; { return ASCII_ISLOWER(name[0]) && vim_strchr(name, ':') == NULL && vim_strchr(name, AUTOLOAD_CHAR) == NULL; } #if defined(FEAT_PROFILE) || defined(PROTO) /* * Start profiling function "fp". */ static void func_do_profile(fp) ufunc_T *fp; { fp->uf_tm_count = 0; profile_zero(&fp->uf_tm_self); profile_zero(&fp->uf_tm_total); if (fp->uf_tml_count == NULL) fp->uf_tml_count = (int *)alloc_clear((unsigned) (sizeof(int) * fp->uf_lines.ga_len)); if (fp->uf_tml_total == NULL) fp->uf_tml_total = (proftime_T *)alloc_clear((unsigned) (sizeof(proftime_T) * fp->uf_lines.ga_len)); if (fp->uf_tml_self == NULL) fp->uf_tml_self = (proftime_T *)alloc_clear((unsigned) (sizeof(proftime_T) * fp->uf_lines.ga_len)); fp->uf_tml_idx = -1; if (fp->uf_tml_count == NULL || fp->uf_tml_total == NULL || fp->uf_tml_self == NULL) return; /* out of memory */ fp->uf_profiling = TRUE; } /* * Dump the profiling results for all functions in file "fd". */ void func_dump_profile(fd) FILE *fd; { hashitem_T *hi; int todo; ufunc_T *fp; int i; ufunc_T **sorttab; int st_len = 0; todo = (int)func_hashtab.ht_used; sorttab = (ufunc_T **)alloc((unsigned)(sizeof(ufunc_T) * todo)); for (hi = func_hashtab.ht_array; todo > 0; ++hi) { if (!HASHITEM_EMPTY(hi)) { --todo; fp = HI2UF(hi); if (fp->uf_profiling) { if (sorttab != NULL) sorttab[st_len++] = fp; if (fp->uf_name[0] == K_SPECIAL) fprintf(fd, "FUNCTION <SNR>%s()\n", fp->uf_name + 3); else fprintf(fd, "FUNCTION %s()\n", fp->uf_name); if (fp->uf_tm_count == 1) fprintf(fd, "Called 1 time\n"); else fprintf(fd, "Called %d times\n", fp->uf_tm_count); fprintf(fd, "Total time: %s\n", profile_msg(&fp->uf_tm_total)); fprintf(fd, " Self time: %s\n", profile_msg(&fp->uf_tm_self)); fprintf(fd, "\n"); fprintf(fd, "count total (s) self (s)\n"); for (i = 0; i < fp->uf_lines.ga_len; ++i) { if (FUNCLINE(fp, i) == NULL) continue; prof_func_line(fd, fp->uf_tml_count[i], &fp->uf_tml_total[i], &fp->uf_tml_self[i], TRUE); fprintf(fd, "%s\n", FUNCLINE(fp, i)); } fprintf(fd, "\n"); } } } if (sorttab != NULL && st_len > 0) { qsort((void *)sorttab, (size_t)st_len, sizeof(ufunc_T *), prof_total_cmp); prof_sort_list(fd, sorttab, st_len, "TOTAL", FALSE); qsort((void *)sorttab, (size_t)st_len, sizeof(ufunc_T *), prof_self_cmp); prof_sort_list(fd, sorttab, st_len, "SELF", TRUE); } } static void prof_sort_list(fd, sorttab, st_len, title, prefer_self) FILE *fd; ufunc_T **sorttab; int st_len; char *title; int prefer_self; /* when equal print only self time */ { int i; ufunc_T *fp; fprintf(fd, "FUNCTIONS SORTED ON %s TIME\n", title); fprintf(fd, "count total (s) self (s) function\n"); for (i = 0; i < 20 && i < st_len; ++i) { fp = sorttab[i]; prof_func_line(fd, fp->uf_tm_count, &fp->uf_tm_total, &fp->uf_tm_self, prefer_self); if (fp->uf_name[0] == K_SPECIAL) fprintf(fd, " <SNR>%s()\n", fp->uf_name + 3); else fprintf(fd, " %s()\n", fp->uf_name); } fprintf(fd, "\n"); } /* * Print the count and times for one function or function line. */ static void prof_func_line(fd, count, total, self, prefer_self) FILE *fd; int count; proftime_T *total; proftime_T *self; int prefer_self; /* when equal print only self time */ { if (count > 0) { fprintf(fd, "%5d ", count); if (prefer_self && profile_equal(total, self)) fprintf(fd, " "); else fprintf(fd, "%s ", profile_msg(total)); if (!prefer_self && profile_equal(total, self)) fprintf(fd, " "); else fprintf(fd, "%s ", profile_msg(self)); } else fprintf(fd, " "); } /* * Compare function for total time sorting. */ static int #ifdef __BORLANDC__ _RTLENTRYF #endif prof_total_cmp(s1, s2) const void *s1; const void *s2; { ufunc_T *p1, *p2; p1 = *(ufunc_T **)s1; p2 = *(ufunc_T **)s2; return profile_cmp(&p1->uf_tm_total, &p2->uf_tm_total); } /* * Compare function for self time sorting. */ static int #ifdef __BORLANDC__ _RTLENTRYF #endif prof_self_cmp(s1, s2) const void *s1; const void *s2; { ufunc_T *p1, *p2; p1 = *(ufunc_T **)s1; p2 = *(ufunc_T **)s2; return profile_cmp(&p1->uf_tm_self, &p2->uf_tm_self); } #endif /* * If "name" has a package name try autoloading the script for it. * Return TRUE if a package was loaded. */ static int script_autoload(name, reload) char_u *name; int reload; /* load script again when already loaded */ { char_u *p; char_u *scriptname, *tofree; int ret = FALSE; int i; /* If there is no '#' after name[0] there is no package name. */ p = vim_strchr(name, AUTOLOAD_CHAR); if (p == NULL || p == name) return FALSE; tofree = scriptname = autoload_name(name); /* Find the name in the list of previously loaded package names. Skip * "autoload/", it's always the same. */ for (i = 0; i < ga_loaded.ga_len; ++i) if (STRCMP(((char_u **)ga_loaded.ga_data)[i] + 9, scriptname + 9) == 0) break; if (!reload && i < ga_loaded.ga_len) ret = FALSE; /* was loaded already */ else { /* Remember the name if it wasn't loaded already. */ if (i == ga_loaded.ga_len && ga_grow(&ga_loaded, 1) == OK) { ((char_u **)ga_loaded.ga_data)[ga_loaded.ga_len++] = scriptname; tofree = NULL; } /* Try loading the package from $VIMRUNTIME/autoload/<name>.vim */ if (source_runtime(scriptname, FALSE) == OK) ret = TRUE; } vim_free(tofree); return ret; } /* * Return the autoload script name for a function or variable name. * Returns NULL when out of memory. */ static char_u * autoload_name(name) char_u *name; { char_u *p; char_u *scriptname; /* Get the script file name: replace '#' with '/', append ".vim". */ scriptname = alloc((unsigned)(STRLEN(name) + 14)); if (scriptname == NULL) return FALSE; STRCPY(scriptname, "autoload/"); STRCAT(scriptname, name); *vim_strrchr(scriptname, AUTOLOAD_CHAR) = NUL; STRCAT(scriptname, ".vim"); while ((p = vim_strchr(scriptname, AUTOLOAD_CHAR)) != NULL) *p = '/'; return scriptname; } #if defined(FEAT_CMDL_COMPL) || defined(PROTO) /* * Function given to ExpandGeneric() to obtain the list of user defined * function names. */ char_u * get_user_func_name(xp, idx) expand_T *xp; int idx; { static long_u done; static hashitem_T *hi; ufunc_T *fp; if (idx == 0) { done = 0; hi = func_hashtab.ht_array; } if (done < func_hashtab.ht_used) { if (done++ > 0) ++hi; while (HASHITEM_EMPTY(hi)) ++hi; fp = HI2UF(hi); if (STRLEN(fp->uf_name) + 4 >= IOSIZE) return fp->uf_name; /* prevents overflow */ cat_func_name(IObuff, fp); if (xp->xp_context != EXPAND_USER_FUNC) { STRCAT(IObuff, "("); if (!fp->uf_varargs && fp->uf_args.ga_len == 0) STRCAT(IObuff, ")"); } return IObuff; } return NULL; } #endif /* FEAT_CMDL_COMPL */ /* * Copy the function name of "fp" to buffer "buf". * "buf" must be able to hold the function name plus three bytes. * Takes care of script-local function names. */ static void cat_func_name(buf, fp) char_u *buf; ufunc_T *fp; { if (fp->uf_name[0] == K_SPECIAL) { STRCPY(buf, "<SNR>"); STRCAT(buf, fp->uf_name + 3); } else STRCPY(buf, fp->uf_name); } /* * ":delfunction {name}" */ void ex_delfunction(eap) exarg_T *eap; { ufunc_T *fp = NULL; char_u *p; char_u *name; funcdict_T fudi; p = eap->arg; name = trans_function_name(&p, eap->skip, 0, &fudi); vim_free(fudi.fd_newkey); if (name == NULL) { if (fudi.fd_dict != NULL && !eap->skip) EMSG(_(e_funcref)); return; } if (!ends_excmd(*skipwhite(p))) { vim_free(name); EMSG(_(e_trailing)); return; } eap->nextcmd = check_nextcmd(p); if (eap->nextcmd != NULL) *p = NUL; if (!eap->skip) fp = find_func(name); vim_free(name); if (!eap->skip) { if (fp == NULL) { EMSG2(_(e_nofunc), eap->arg); return; } if (fp->uf_calls > 0) { EMSG2(_("E131: Cannot delete function %s: It is in use"), eap->arg); return; } if (fudi.fd_dict != NULL) { /* Delete the dict item that refers to the function, it will * invoke func_unref() and possibly delete the function. */ dictitem_remove(fudi.fd_dict, fudi.fd_di); } else func_free(fp); } } /* * Free a function and remove it from the list of functions. */ static void func_free(fp) ufunc_T *fp; { hashitem_T *hi; /* clear this function */ ga_clear_strings(&(fp->uf_args)); ga_clear_strings(&(fp->uf_lines)); #ifdef FEAT_PROFILE vim_free(fp->uf_tml_count); vim_free(fp->uf_tml_total); vim_free(fp->uf_tml_self); #endif /* remove the function from the function hashtable */ hi = hash_find(&func_hashtab, UF2HIKEY(fp)); if (HASHITEM_EMPTY(hi)) EMSG2(_(e_intern2), "func_free()"); else hash_remove(&func_hashtab, hi); vim_free(fp); } /* * Unreference a Function: decrement the reference count and free it when it * becomes zero. Only for numbered functions. */ static void func_unref(name) char_u *name; { ufunc_T *fp; if (name != NULL && isdigit(*name)) { fp = find_func(name); if (fp == NULL) EMSG2(_(e_intern2), "func_unref()"); else if (--fp->uf_refcount <= 0) { /* Only delete it when it's not being used. Otherwise it's done * when "uf_calls" becomes zero. */ if (fp->uf_calls == 0) func_free(fp); } } } /* * Count a reference to a Function. */ static void func_ref(name) char_u *name; { ufunc_T *fp; if (name != NULL && isdigit(*name)) { fp = find_func(name); if (fp == NULL) EMSG2(_(e_intern2), "func_ref()"); else ++fp->uf_refcount; } } /* * Call a user function. */ static void call_user_func(fp, argcount, argvars, rettv, firstline, lastline, selfdict) ufunc_T *fp; /* pointer to function */ int argcount; /* nr of args */ typval_T *argvars; /* arguments */ typval_T *rettv; /* return value */ linenr_T firstline; /* first line of range */ linenr_T lastline; /* last line of range */ dict_T *selfdict; /* Dictionary for "self" */ { char_u *save_sourcing_name; linenr_T save_sourcing_lnum; scid_T save_current_SID; funccall_T fc; int save_did_emsg; static int depth = 0; dictitem_T *v; int fixvar_idx = 0; /* index in fixvar[] */ int i; int ai; char_u numbuf[NUMBUFLEN]; char_u *name; #ifdef FEAT_PROFILE proftime_T wait_start; proftime_T call_start; #endif /* If depth of calling is getting too high, don't execute the function */ if (depth >= p_mfd) { EMSG(_("E132: Function call depth is higher than 'maxfuncdepth'")); rettv->v_type = VAR_NUMBER; rettv->vval.v_number = -1; return; } ++depth; line_breakcheck(); /* check for CTRL-C hit */ fc.caller = current_funccal; current_funccal = &fc; fc.func = fp; fc.rettv = rettv; rettv->vval.v_number = 0; fc.linenr = 0; fc.returned = FALSE; fc.level = ex_nesting_level; /* Check if this function has a breakpoint. */ fc.breakpoint = dbg_find_breakpoint(FALSE, fp->uf_name, (linenr_T)0); fc.dbg_tick = debug_tick; /* * Note about using fc.fixvar[]: This is an array of FIXVAR_CNT variables * with names up to VAR_SHORT_LEN long. This avoids having to alloc/free * each argument variable and saves a lot of time. */ /* * Init l: variables. */ init_var_dict(&fc.l_vars, &fc.l_vars_var); if (selfdict != NULL) { /* Set l:self to "selfdict". Use "name" to avoid a warning from * some compiler that checks the destination size. */ v = &fc.fixvar[fixvar_idx++].var; name = v->di_key; STRCPY(name, "self"); v->di_flags = DI_FLAGS_RO + DI_FLAGS_FIX; hash_add(&fc.l_vars.dv_hashtab, DI2HIKEY(v)); v->di_tv.v_type = VAR_DICT; v->di_tv.v_lock = 0; v->di_tv.vval.v_dict = selfdict; ++selfdict->dv_refcount; } /* * Init a: variables. * Set a:0 to "argcount". * Set a:000 to a list with room for the "..." arguments. */ init_var_dict(&fc.l_avars, &fc.l_avars_var); add_nr_var(&fc.l_avars, &fc.fixvar[fixvar_idx++].var, "0", (varnumber_T)(argcount - fp->uf_args.ga_len)); v = &fc.fixvar[fixvar_idx++].var; STRCPY(v->di_key, "000"); v->di_flags = DI_FLAGS_RO | DI_FLAGS_FIX; hash_add(&fc.l_avars.dv_hashtab, DI2HIKEY(v)); v->di_tv.v_type = VAR_LIST; v->di_tv.v_lock = VAR_FIXED; v->di_tv.vval.v_list = &fc.l_varlist; vim_memset(&fc.l_varlist, 0, sizeof(list_T)); fc.l_varlist.lv_refcount = 99999; fc.l_varlist.lv_lock = VAR_FIXED; /* * Set a:firstline to "firstline" and a:lastline to "lastline". * Set a:name to named arguments. * Set a:N to the "..." arguments. */ add_nr_var(&fc.l_avars, &fc.fixvar[fixvar_idx++].var, "firstline", (varnumber_T)firstline); add_nr_var(&fc.l_avars, &fc.fixvar[fixvar_idx++].var, "lastline", (varnumber_T)lastline); for (i = 0; i < argcount; ++i) { ai = i - fp->uf_args.ga_len; if (ai < 0) /* named argument a:name */ name = FUNCARG(fp, i); else { /* "..." argument a:1, a:2, etc. */ sprintf((char *)numbuf, "%d", ai + 1); name = numbuf; } if (fixvar_idx < FIXVAR_CNT && STRLEN(name) <= VAR_SHORT_LEN) { v = &fc.fixvar[fixvar_idx++].var; v->di_flags = DI_FLAGS_RO | DI_FLAGS_FIX; } else { v = (dictitem_T *)alloc((unsigned)(sizeof(dictitem_T) + STRLEN(name))); if (v == NULL) break; v->di_flags = DI_FLAGS_RO; } STRCPY(v->di_key, name); hash_add(&fc.l_avars.dv_hashtab, DI2HIKEY(v)); /* Note: the values are copied directly to avoid alloc/free. * "argvars" must have VAR_FIXED for v_lock. */ v->di_tv = argvars[i]; v->di_tv.v_lock = VAR_FIXED; if (ai >= 0 && ai < MAX_FUNC_ARGS) { list_append(&fc.l_varlist, &fc.l_listitems[ai]); fc.l_listitems[ai].li_tv = argvars[i]; fc.l_listitems[ai].li_tv.v_lock = VAR_FIXED; } } /* Don't redraw while executing the function. */ ++RedrawingDisabled; save_sourcing_name = sourcing_name; save_sourcing_lnum = sourcing_lnum; sourcing_lnum = 1; sourcing_name = alloc((unsigned)((save_sourcing_name == NULL ? 0 : STRLEN(save_sourcing_name)) + STRLEN(fp->uf_name) + 13)); if (sourcing_name != NULL) { if (save_sourcing_name != NULL && STRNCMP(save_sourcing_name, "function ", 9) == 0) sprintf((char *)sourcing_name, "%s..", save_sourcing_name); else STRCPY(sourcing_name, "function "); cat_func_name(sourcing_name + STRLEN(sourcing_name), fp); if (p_verbose >= 12) { ++no_wait_return; verbose_enter_scroll(); smsg((char_u *)_("calling %s"), sourcing_name); if (p_verbose >= 14) { char_u buf[MSG_BUF_LEN]; char_u numbuf2[NUMBUFLEN]; char_u *tofree; msg_puts((char_u *)"("); for (i = 0; i < argcount; ++i) { if (i > 0) msg_puts((char_u *)", "); if (argvars[i].v_type == VAR_NUMBER) msg_outnum((long)argvars[i].vval.v_number); else { trunc_string(tv2string(&argvars[i], &tofree, numbuf2, 0), buf, MSG_BUF_CLEN); msg_puts(buf); vim_free(tofree); } } msg_puts((char_u *)")"); } msg_puts((char_u *)"\n"); /* don't overwrite this either */ verbose_leave_scroll(); --no_wait_return; } } #ifdef FEAT_PROFILE if (do_profiling == PROF_YES) { if (!fp->uf_profiling && has_profiling(FALSE, fp->uf_name, NULL)) func_do_profile(fp); if (fp->uf_profiling || (fc.caller != NULL && &fc.caller->func->uf_profiling)) { ++fp->uf_tm_count; profile_start(&call_start); profile_zero(&fp->uf_tm_children); } script_prof_save(&wait_start); } #endif save_current_SID = current_SID; current_SID = fp->uf_script_ID; save_did_emsg = did_emsg; did_emsg = FALSE; /* call do_cmdline() to execute the lines */ do_cmdline(NULL, get_func_line, (void *)&fc, DOCMD_NOWAIT|DOCMD_VERBOSE|DOCMD_REPEAT); --RedrawingDisabled; /* when the function was aborted because of an error, return -1 */ if ((did_emsg && (fp->uf_flags & FC_ABORT)) || rettv->v_type == VAR_UNKNOWN) { clear_tv(rettv); rettv->v_type = VAR_NUMBER; rettv->vval.v_number = -1; } #ifdef FEAT_PROFILE if (do_profiling == PROF_YES && (fp->uf_profiling || (fc.caller != NULL && &fc.caller->func->uf_profiling))) { profile_end(&call_start); profile_sub_wait(&wait_start, &call_start); profile_add(&fp->uf_tm_total, &call_start); profile_self(&fp->uf_tm_self, &call_start, &fp->uf_tm_children); if (fc.caller != NULL && &fc.caller->func->uf_profiling) { profile_add(&fc.caller->func->uf_tm_children, &call_start); profile_add(&fc.caller->func->uf_tml_children, &call_start); } } #endif /* when being verbose, mention the return value */ if (p_verbose >= 12) { ++no_wait_return; verbose_enter_scroll(); if (aborting()) smsg((char_u *)_("%s aborted"), sourcing_name); else if (fc.rettv->v_type == VAR_NUMBER) smsg((char_u *)_("%s returning #%ld"), sourcing_name, (long)fc.rettv->vval.v_number); else { char_u buf[MSG_BUF_LEN]; char_u numbuf2[NUMBUFLEN]; char_u *tofree; /* The value may be very long. Skip the middle part, so that we * have some idea how it starts and ends. smsg() would always * truncate it at the end. */ trunc_string(tv2string(fc.rettv, &tofree, numbuf2, 0), buf, MSG_BUF_CLEN); smsg((char_u *)_("%s returning %s"), sourcing_name, buf); vim_free(tofree); } msg_puts((char_u *)"\n"); /* don't overwrite this either */ verbose_leave_scroll(); --no_wait_return; } vim_free(sourcing_name); sourcing_name = save_sourcing_name; sourcing_lnum = save_sourcing_lnum; current_SID = save_current_SID; #ifdef FEAT_PROFILE if (do_profiling == PROF_YES) script_prof_restore(&wait_start); #endif if (p_verbose >= 12 && sourcing_name != NULL) { ++no_wait_return; verbose_enter_scroll(); smsg((char_u *)_("continuing in %s"), sourcing_name); msg_puts((char_u *)"\n"); /* don't overwrite this either */ verbose_leave_scroll(); --no_wait_return; } did_emsg |= save_did_emsg; current_funccal = fc.caller; /* The a: variables typevals were not alloced, only free the allocated * variables. */ vars_clear_ext(&fc.l_avars.dv_hashtab, FALSE); vars_clear(&fc.l_vars.dv_hashtab); /* free all l: variables */ --depth; } /* * Add a number variable "name" to dict "dp" with value "nr". */ static void add_nr_var(dp, v, name, nr) dict_T *dp; dictitem_T *v; char *name; varnumber_T nr; { STRCPY(v->di_key, name); v->di_flags = DI_FLAGS_RO | DI_FLAGS_FIX; hash_add(&dp->dv_hashtab, DI2HIKEY(v)); v->di_tv.v_type = VAR_NUMBER; v->di_tv.v_lock = VAR_FIXED; v->di_tv.vval.v_number = nr; } /* * ":return [expr]" */ void ex_return(eap) exarg_T *eap; { char_u *arg = eap->arg; typval_T rettv; int returning = FALSE; if (current_funccal == NULL) { EMSG(_("E133: :return not inside a function")); return; } if (eap->skip) ++emsg_skip; eap->nextcmd = NULL; if ((*arg != NUL && *arg != '|' && *arg != '\n') && eval0(arg, &rettv, &eap->nextcmd, !eap->skip) != FAIL) { if (!eap->skip) returning = do_return(eap, FALSE, TRUE, &rettv); else clear_tv(&rettv); } /* It's safer to return also on error. */ else if (!eap->skip) { /* * Return unless the expression evaluation has been cancelled due to an * aborting error, an interrupt, or an exception. */ if (!aborting()) returning = do_return(eap, FALSE, TRUE, NULL); } /* When skipping or the return gets pending, advance to the next command * in this line (!returning). Otherwise, ignore the rest of the line. * Following lines will be ignored by get_func_line(). */ if (returning) eap->nextcmd = NULL; else if (eap->nextcmd == NULL) /* no argument */ eap->nextcmd = check_nextcmd(arg); if (eap->skip) --emsg_skip; } /* * Return from a function. Possibly makes the return pending. Also called * for a pending return at the ":endtry" or after returning from an extra * do_cmdline(). "reanimate" is used in the latter case. "is_cmd" is set * when called due to a ":return" command. "rettv" may point to a typval_T * with the return rettv. Returns TRUE when the return can be carried out, * FALSE when the return gets pending. */ int do_return(eap, reanimate, is_cmd, rettv) exarg_T *eap; int reanimate; int is_cmd; void *rettv; { int idx; struct condstack *cstack = eap->cstack; if (reanimate) /* Undo the return. */ current_funccal->returned = FALSE; /* * Cleanup (and inactivate) conditionals, but stop when a try conditional * not in its finally clause (which then is to be executed next) is found. * In this case, make the ":return" pending for execution at the ":endtry". * Otherwise, return normally. */ idx = cleanup_conditionals(eap->cstack, 0, TRUE); if (idx >= 0) { cstack->cs_pending[idx] = CSTP_RETURN; if (!is_cmd && !reanimate) /* A pending return again gets pending. "rettv" points to an * allocated variable with the rettv of the original ":return"'s * argument if present or is NULL else. */ cstack->cs_rettv[idx] = rettv; else { /* When undoing a return in order to make it pending, get the stored * return rettv. */ if (reanimate) rettv = current_funccal->rettv; if (rettv != NULL) { /* Store the value of the pending return. */ if ((cstack->cs_rettv[idx] = alloc_tv()) != NULL) *(typval_T *)cstack->cs_rettv[idx] = *(typval_T *)rettv; else EMSG(_(e_outofmem)); } else cstack->cs_rettv[idx] = NULL; if (reanimate) { /* The pending return value could be overwritten by a ":return" * without argument in a finally clause; reset the default * return value. */ current_funccal->rettv->v_type = VAR_NUMBER; current_funccal->rettv->vval.v_number = 0; } } report_make_pending(CSTP_RETURN, rettv); } else { current_funccal->returned = TRUE; /* If the return is carried out now, store the return value. For * a return immediately after reanimation, the value is already * there. */ if (!reanimate && rettv != NULL) { clear_tv(current_funccal->rettv); *current_funccal->rettv = *(typval_T *)rettv; if (!is_cmd) vim_free(rettv); } } return idx < 0; } /* * Free the variable with a pending return value. */ void discard_pending_return(rettv) void *rettv; { free_tv((typval_T *)rettv); } /* * Generate a return command for producing the value of "rettv". The result * is an allocated string. Used by report_pending() for verbose messages. */ char_u * get_return_cmd(rettv) void *rettv; { char_u *s = NULL; char_u *tofree = NULL; char_u numbuf[NUMBUFLEN]; if (rettv != NULL) s = echo_string((typval_T *)rettv, &tofree, numbuf, 0); if (s == NULL) s = (char_u *)""; STRCPY(IObuff, ":return "); STRNCPY(IObuff + 8, s, IOSIZE - 8); if (STRLEN(s) + 8 >= IOSIZE) STRCPY(IObuff + IOSIZE - 4, "..."); vim_free(tofree); return vim_strsave(IObuff); } /* * Get next function line. * Called by do_cmdline() to get the next line. * Returns allocated string, or NULL for end of function. */ /* ARGSUSED */ char_u * get_func_line(c, cookie, indent) int c; /* not used */ void *cookie; int indent; /* not used */ { funccall_T *fcp = (funccall_T *)cookie; ufunc_T *fp = fcp->func; char_u *retval; garray_T *gap; /* growarray with function lines */ /* If breakpoints have been added/deleted need to check for it. */ if (fcp->dbg_tick != debug_tick) { fcp->breakpoint = dbg_find_breakpoint(FALSE, fp->uf_name, sourcing_lnum); fcp->dbg_tick = debug_tick; } #ifdef FEAT_PROFILE if (do_profiling == PROF_YES) func_line_end(cookie); #endif gap = &fp->uf_lines; if (((fp->uf_flags & FC_ABORT) && did_emsg && !aborted_in_try()) || fcp->returned) retval = NULL; else { /* Skip NULL lines (continuation lines). */ while (fcp->linenr < gap->ga_len && ((char_u **)(gap->ga_data))[fcp->linenr] == NULL) ++fcp->linenr; if (fcp->linenr >= gap->ga_len) retval = NULL; else { retval = vim_strsave(((char_u **)(gap->ga_data))[fcp->linenr++]); sourcing_lnum = fcp->linenr; #ifdef FEAT_PROFILE if (do_profiling == PROF_YES) func_line_start(cookie); #endif } } /* Did we encounter a breakpoint? */ if (fcp->breakpoint != 0 && fcp->breakpoint <= sourcing_lnum) { dbg_breakpoint(fp->uf_name, sourcing_lnum); /* Find next breakpoint. */ fcp->breakpoint = dbg_find_breakpoint(FALSE, fp->uf_name, sourcing_lnum); fcp->dbg_tick = debug_tick; } return retval; } #if defined(FEAT_PROFILE) || defined(PROTO) /* * Called when starting to read a function line. * "sourcing_lnum" must be correct! * When skipping lines it may not actually be executed, but we won't find out * until later and we need to store the time now. */ void func_line_start(cookie) void *cookie; { funccall_T *fcp = (funccall_T *)cookie; ufunc_T *fp = fcp->func; if (fp->uf_profiling && sourcing_lnum >= 1 && sourcing_lnum <= fp->uf_lines.ga_len) { fp->uf_tml_idx = sourcing_lnum - 1; /* Skip continuation lines. */ while (fp->uf_tml_idx > 0 && FUNCLINE(fp, fp->uf_tml_idx) == NULL) --fp->uf_tml_idx; fp->uf_tml_execed = FALSE; profile_start(&fp->uf_tml_start); profile_zero(&fp->uf_tml_children); profile_get_wait(&fp->uf_tml_wait); } } /* * Called when actually executing a function line. */ void func_line_exec(cookie) void *cookie; { funccall_T *fcp = (funccall_T *)cookie; ufunc_T *fp = fcp->func; if (fp->uf_profiling && fp->uf_tml_idx >= 0) fp->uf_tml_execed = TRUE; } /* * Called when done with a function line. */ void func_line_end(cookie) void *cookie; { funccall_T *fcp = (funccall_T *)cookie; ufunc_T *fp = fcp->func; if (fp->uf_profiling && fp->uf_tml_idx >= 0) { if (fp->uf_tml_execed) { ++fp->uf_tml_count[fp->uf_tml_idx]; profile_end(&fp->uf_tml_start); profile_sub_wait(&fp->uf_tml_wait, &fp->uf_tml_start); profile_add(&fp->uf_tml_total[fp->uf_tml_idx], &fp->uf_tml_start); profile_self(&fp->uf_tml_self[fp->uf_tml_idx], &fp->uf_tml_start, &fp->uf_tml_children); } fp->uf_tml_idx = -1; } } #endif /* * Return TRUE if the currently active function should be ended, because a * return was encountered or an error occured. Used inside a ":while". */ int func_has_ended(cookie) void *cookie; { funccall_T *fcp = (funccall_T *)cookie; /* Ignore the "abort" flag if the abortion behavior has been changed due to * an error inside a try conditional. */ return (((fcp->func->uf_flags & FC_ABORT) && did_emsg && !aborted_in_try()) || fcp->returned); } /* * return TRUE if cookie indicates a function which "abort"s on errors. */ int func_has_abort(cookie) void *cookie; { return ((funccall_T *)cookie)->func->uf_flags & FC_ABORT; } #if defined(FEAT_VIMINFO) || defined(FEAT_SESSION) typedef enum { VAR_FLAVOUR_DEFAULT, VAR_FLAVOUR_SESSION, VAR_FLAVOUR_VIMINFO } var_flavour_T; static var_flavour_T var_flavour __ARGS((char_u *varname)); static var_flavour_T var_flavour(varname) char_u *varname; { char_u *p = varname; if (ASCII_ISUPPER(*p)) { while (*(++p)) if (ASCII_ISLOWER(*p)) return VAR_FLAVOUR_SESSION; return VAR_FLAVOUR_VIMINFO; } else return VAR_FLAVOUR_DEFAULT; } #endif #if defined(FEAT_VIMINFO) || defined(PROTO) /* * Restore global vars that start with a capital from the viminfo file */ int read_viminfo_varlist(virp, writing) vir_T *virp; int writing; { char_u *tab; int is_string = FALSE; typval_T tv; if (!writing && (find_viminfo_parameter('!') != NULL)) { tab = vim_strchr(virp->vir_line + 1, '\t'); if (tab != NULL) { *tab++ = '\0'; /* isolate the variable name */ if (*tab == 'S') /* string var */ is_string = TRUE; tab = vim_strchr(tab, '\t'); if (tab != NULL) { if (is_string) { tv.v_type = VAR_STRING; tv.vval.v_string = viminfo_readstring(virp, (int)(tab - virp->vir_line + 1), TRUE); } else { tv.v_type = VAR_NUMBER; tv.vval.v_number = atol((char *)tab + 1); } set_var(virp->vir_line + 1, &tv, FALSE); if (is_string) vim_free(tv.vval.v_string); } } } return viminfo_readline(virp); } /* * Write global vars that start with a capital to the viminfo file */ void write_viminfo_varlist(fp) FILE *fp; { hashitem_T *hi; dictitem_T *this_var; int todo; char *s; char_u *p; char_u *tofree; char_u numbuf[NUMBUFLEN]; if (find_viminfo_parameter('!') == NULL) return; fprintf(fp, _("\n# global variables:\n")); todo = (int)globvarht.ht_used; for (hi = globvarht.ht_array; todo > 0; ++hi) { if (!HASHITEM_EMPTY(hi)) { --todo; this_var = HI2DI(hi); if (var_flavour(this_var->di_key) == VAR_FLAVOUR_VIMINFO) { switch (this_var->di_tv.v_type) { case VAR_STRING: s = "STR"; break; case VAR_NUMBER: s = "NUM"; break; default: continue; } fprintf(fp, "!%s\t%s\t", this_var->di_key, s); p = echo_string(&this_var->di_tv, &tofree, numbuf, 0); if (p != NULL) viminfo_writestring(fp, p); vim_free(tofree); } } } } #endif #if defined(FEAT_SESSION) || defined(PROTO) int store_session_globals(fd) FILE *fd; { hashitem_T *hi; dictitem_T *this_var; int todo; char_u *p, *t; todo = (int)globvarht.ht_used; for (hi = globvarht.ht_array; todo > 0; ++hi) { if (!HASHITEM_EMPTY(hi)) { --todo; this_var = HI2DI(hi); if ((this_var->di_tv.v_type == VAR_NUMBER || this_var->di_tv.v_type == VAR_STRING) && var_flavour(this_var->di_key) == VAR_FLAVOUR_SESSION) { /* Escape special characters with a backslash. Turn a LF and * CR into \n and \r. */ p = vim_strsave_escaped(get_tv_string(&this_var->di_tv), (char_u *)"\\\"\n\r"); if (p == NULL) /* out of memory */ break; for (t = p; *t != NUL; ++t) if (*t == '\n') *t = 'n'; else if (*t == '\r') *t = 'r'; if ((fprintf(fd, "let %s = %c%s%c", this_var->di_key, (this_var->di_tv.v_type == VAR_STRING) ? '"' : ' ', p, (this_var->di_tv.v_type == VAR_STRING) ? '"' : ' ') < 0) || put_eol(fd) == FAIL) { vim_free(p); return FAIL; } vim_free(p); } } } return OK; } #endif /* * Display script name where an item was last set. * Should only be invoked when 'verbose' is non-zero. */ void last_set_msg(scriptID) scid_T scriptID; { char_u *p; if (scriptID != 0) { p = home_replace_save(NULL, get_scriptname(scriptID)); if (p != NULL) { verbose_enter(); MSG_PUTS(_("\n\tLast set from ")); MSG_PUTS(p); vim_free(p); verbose_leave(); } } } #endif /* FEAT_EVAL */ #if defined(FEAT_MODIFY_FNAME) || defined(FEAT_EVAL) || defined(PROTO) #ifdef WIN3264 /* * Functions for ":8" filename modifier: get 8.3 version of a filename. */ static int get_short_pathname __ARGS((char_u **fnamep, char_u **bufp, int *fnamelen)); static int shortpath_for_invalid_fname __ARGS((char_u **fname, char_u **bufp, int *fnamelen)); static int shortpath_for_partial __ARGS((char_u **fnamep, char_u **bufp, int *fnamelen)); /* * Get the short pathname of a file. * Returns 1 on success. *fnamelen is 0 for nonexistent path. */ static int get_short_pathname(fnamep, bufp, fnamelen) char_u **fnamep; char_u **bufp; int *fnamelen; { int l,len; char_u *newbuf; len = *fnamelen; l = GetShortPathName(*fnamep, *fnamep, len); if (l > len - 1) { /* If that doesn't work (not enough space), then save the string * and try again with a new buffer big enough */ newbuf = vim_strnsave(*fnamep, l); if (newbuf == NULL) return 0; vim_free(*bufp); *fnamep = *bufp = newbuf; l = GetShortPathName(*fnamep,*fnamep,l+1); /* Really should always succeed, as the buffer is big enough */ } *fnamelen = l; return 1; } /* * Create a short path name. Returns the length of the buffer it needs. * Doesn't copy over the end of the buffer passed in. */ static int shortpath_for_invalid_fname(fname, bufp, fnamelen) char_u **fname; char_u **bufp; int *fnamelen; { char_u *s, *p, *pbuf2, *pbuf3; char_u ch; int len, len2, plen, slen; /* Make a copy */ len2 = *fnamelen; pbuf2 = vim_strnsave(*fname, len2); pbuf3 = NULL; s = pbuf2 + len2 - 1; /* Find the end */ slen = 1; plen = len2; if (after_pathsep(pbuf2, s + 1)) { --s; ++slen; --plen; } do { /* Go back one path-separator */ while (s > pbuf2 && !after_pathsep(pbuf2, s + 1)) { --s; ++slen; --plen; } if (s <= pbuf2) break; /* Remember the character that is about to be splatted */ ch = *s; *s = 0; /* get_short_pathname requires a null-terminated string */ /* Try it in situ */ p = pbuf2; if (!get_short_pathname(&p, &pbuf3, &plen)) { vim_free(pbuf2); return -1; } *s = ch; /* Preserve the string */ } while (plen == 0); if (plen > 0) { /* Remember the length of the new string. */ *fnamelen = len = plen + slen; vim_free(*bufp); if (len > len2) { /* If there's not enough space in the currently allocated string, * then copy it to a buffer big enough. */ *fname= *bufp = vim_strnsave(p, len); if (*fname == NULL) return -1; } else { /* Transfer pbuf2 to being the main buffer (it's big enough) */ *fname = *bufp = pbuf2; if (p != pbuf2) strncpy(*fname, p, plen); pbuf2 = NULL; } /* Concat the next bit */ strncpy(*fname + plen, s, slen); (*fname)[len] = '\0'; } vim_free(pbuf3); vim_free(pbuf2); return 0; } /* * Get a pathname for a partial path. */ static int shortpath_for_partial(fnamep, bufp, fnamelen) char_u **fnamep; char_u **bufp; int *fnamelen; { int sepcount, len, tflen; char_u *p; char_u *pbuf, *tfname; int hasTilde; /* Count up the path seperators from the RHS.. so we know which part * of the path to return. */ sepcount = 0; for (p = *fnamep; p < *fnamep + *fnamelen; mb_ptr_adv(p)) if (vim_ispathsep(*p)) ++sepcount; /* Need full path first (use expand_env() to remove a "~/") */ hasTilde = (**fnamep == '~'); if (hasTilde) pbuf = tfname = expand_env_save(*fnamep); else pbuf = tfname = FullName_save(*fnamep, FALSE); len = tflen = (int)STRLEN(tfname); if (!get_short_pathname(&tfname, &pbuf, &len)) return -1; if (len == 0) { /* Don't have a valid filename, so shorten the rest of the * path if we can. This CAN give us invalid 8.3 filenames, but * there's not a lot of point in guessing what it might be. */ len = tflen; if (shortpath_for_invalid_fname(&tfname, &pbuf, &len) == -1) return -1; } /* Count the paths backward to find the beginning of the desired string. */ for (p = tfname + len - 1; p >= tfname; --p) { #ifdef FEAT_MBYTE if (has_mbyte) p -= mb_head_off(tfname, p); #endif if (vim_ispathsep(*p)) { if (sepcount == 0 || (hasTilde && sepcount == 1)) break; else sepcount --; } } if (hasTilde) { --p; if (p >= tfname) *p = '~'; else return -1; } else ++p; /* Copy in the string - p indexes into tfname - allocated at pbuf */ vim_free(*bufp); *fnamelen = (int)STRLEN(p); *bufp = pbuf; *fnamep = p; return 0; } #endif /* WIN3264 */ /* * Adjust a filename, according to a string of modifiers. * *fnamep must be NUL terminated when called. When returning, the length is * determined by *fnamelen. * Returns valid flags. * When there is an error, *fnamep is set to NULL. */ int modify_fname(src, usedlen, fnamep, bufp, fnamelen) char_u *src; /* string with modifiers */ int *usedlen; /* characters after src that are used */ char_u **fnamep; /* file name so far */ char_u **bufp; /* buffer for allocated file name or NULL */ int *fnamelen; /* length of fnamep */ { int valid = 0; char_u *tail; char_u *s, *p, *pbuf; char_u dirname[MAXPATHL]; int c; int has_fullname = 0; #ifdef WIN3264 int has_shortname = 0; #endif repeat: /* ":p" - full path/file_name */ if (src[*usedlen] == ':' && src[*usedlen + 1] == 'p') { has_fullname = 1; valid |= VALID_PATH; *usedlen += 2; /* Expand "~/path" for all systems and "~user/path" for Unix and VMS */ if ((*fnamep)[0] == '~' #if !defined(UNIX) && !(defined(VMS) && defined(USER_HOME)) && ((*fnamep)[1] == '/' # ifdef BACKSLASH_IN_FILENAME || (*fnamep)[1] == '\\' # endif || (*fnamep)[1] == NUL) #endif ) { *fnamep = expand_env_save(*fnamep); vim_free(*bufp); /* free any allocated file name */ *bufp = *fnamep; if (*fnamep == NULL) return -1; } /* When "/." or "/.." is used: force expansion to get rid of it. */ for (p = *fnamep; *p != NUL; mb_ptr_adv(p)) { if (vim_ispathsep(*p) && p[1] == '.' && (p[2] == NUL || vim_ispathsep(p[2]) || (p[2] == '.' && (p[3] == NUL || vim_ispathsep(p[3]))))) break; } /* FullName_save() is slow, don't use it when not needed. */ if (*p != NUL || !vim_isAbsName(*fnamep)) { *fnamep = FullName_save(*fnamep, *p != NUL); vim_free(*bufp); /* free any allocated file name */ *bufp = *fnamep; if (*fnamep == NULL) return -1; } /* Append a path separator to a directory. */ if (mch_isdir(*fnamep)) { /* Make room for one or two extra characters. */ *fnamep = vim_strnsave(*fnamep, (int)STRLEN(*fnamep) + 2); vim_free(*bufp); /* free any allocated file name */ *bufp = *fnamep; if (*fnamep == NULL) return -1; add_pathsep(*fnamep); } } /* ":." - path relative to the current directory */ /* ":~" - path relative to the home directory */ /* ":8" - shortname path - postponed till after */ while (src[*usedlen] == ':' && ((c = src[*usedlen + 1]) == '.' || c == '~' || c == '8')) { *usedlen += 2; if (c == '8') { #ifdef WIN3264 has_shortname = 1; /* Postpone this. */ #endif continue; } pbuf = NULL; /* Need full path first (use expand_env() to remove a "~/") */ if (!has_fullname) { if (c == '.' && **fnamep == '~') p = pbuf = expand_env_save(*fnamep); else p = pbuf = FullName_save(*fnamep, FALSE); } else p = *fnamep; has_fullname = 0; if (p != NULL) { if (c == '.') { mch_dirname(dirname, MAXPATHL); s = shorten_fname(p, dirname); if (s != NULL) { *fnamep = s; if (pbuf != NULL) { vim_free(*bufp); /* free any allocated file name */ *bufp = pbuf; pbuf = NULL; } } } else { home_replace(NULL, p, dirname, MAXPATHL, TRUE); /* Only replace it when it starts with '~' */ if (*dirname == '~') { s = vim_strsave(dirname); if (s != NULL) { *fnamep = s; vim_free(*bufp); *bufp = s; } } } vim_free(pbuf); } } tail = gettail(*fnamep); *fnamelen = (int)STRLEN(*fnamep); /* ":h" - head, remove "/file_name", can be repeated */ /* Don't remove the first "/" or "c:\" */ while (src[*usedlen] == ':' && src[*usedlen + 1] == 'h') { valid |= VALID_HEAD; *usedlen += 2; s = get_past_head(*fnamep); while (tail > s && after_pathsep(s, tail)) --tail; *fnamelen = (int)(tail - *fnamep); #ifdef VMS if (*fnamelen > 0) *fnamelen += 1; /* the path separator is part of the path */ #endif while (tail > s && !after_pathsep(s, tail)) mb_ptr_back(*fnamep, tail); } /* ":8" - shortname */ if (src[*usedlen] == ':' && src[*usedlen + 1] == '8') { *usedlen += 2; #ifdef WIN3264 has_shortname = 1; #endif } #ifdef WIN3264 /* Check shortname after we have done 'heads' and before we do 'tails' */ if (has_shortname) { pbuf = NULL; /* Copy the string if it is shortened by :h */ if (*fnamelen < (int)STRLEN(*fnamep)) { p = vim_strnsave(*fnamep, *fnamelen); if (p == 0) return -1; vim_free(*bufp); *bufp = *fnamep = p; } /* Split into two implementations - makes it easier. First is where * there isn't a full name already, second is where there is. */ if (!has_fullname && !vim_isAbsName(*fnamep)) { if (shortpath_for_partial(fnamep, bufp, fnamelen) == -1) return -1; } else { int l; /* Simple case, already have the full-name * Nearly always shorter, so try first time. */ l = *fnamelen; if (!get_short_pathname(fnamep, bufp, &l)) return -1; if (l == 0) { /* Couldn't find the filename.. search the paths. */ l = *fnamelen; if (shortpath_for_invalid_fname(fnamep, bufp, &l ) == -1) return -1; } *fnamelen = l; } } #endif /* WIN3264 */ /* ":t" - tail, just the basename */ if (src[*usedlen] == ':' && src[*usedlen + 1] == 't') { *usedlen += 2; *fnamelen -= (int)(tail - *fnamep); *fnamep = tail; } /* ":e" - extension, can be repeated */ /* ":r" - root, without extension, can be repeated */ while (src[*usedlen] == ':' && (src[*usedlen + 1] == 'e' || src[*usedlen + 1] == 'r')) { /* find a '.' in the tail: * - for second :e: before the current fname * - otherwise: The last '.' */ if (src[*usedlen + 1] == 'e' && *fnamep > tail) s = *fnamep - 2; else s = *fnamep + *fnamelen - 1; for ( ; s > tail; --s) if (s[0] == '.') break; if (src[*usedlen + 1] == 'e') /* :e */ { if (s > tail) { *fnamelen += (int)(*fnamep - (s + 1)); *fnamep = s + 1; #ifdef VMS /* cut version from the extension */ s = *fnamep + *fnamelen - 1; for ( ; s > *fnamep; --s) if (s[0] == ';') break; if (s > *fnamep) *fnamelen = s - *fnamep; #endif } else if (*fnamep <= tail) *fnamelen = 0; } else /* :r */ { if (s > tail) /* remove one extension */ *fnamelen = (int)(s - *fnamep); } *usedlen += 2; } /* ":s?pat?foo?" - substitute */ /* ":gs?pat?foo?" - global substitute */ if (src[*usedlen] == ':' && (src[*usedlen + 1] == 's' || (src[*usedlen + 1] == 'g' && src[*usedlen + 2] == 's'))) { char_u *str; char_u *pat; char_u *sub; int sep; char_u *flags; int didit = FALSE; flags = (char_u *)""; s = src + *usedlen + 2; if (src[*usedlen + 1] == 'g') { flags = (char_u *)"g"; ++s; } sep = *s++; if (sep) { /* find end of pattern */ p = vim_strchr(s, sep); if (p != NULL) { pat = vim_strnsave(s, (int)(p - s)); if (pat != NULL) { s = p + 1; /* find end of substitution */ p = vim_strchr(s, sep); if (p != NULL) { sub = vim_strnsave(s, (int)(p - s)); str = vim_strnsave(*fnamep, *fnamelen); if (sub != NULL && str != NULL) { *usedlen = (int)(p + 1 - src); s = do_string_sub(str, pat, sub, flags); if (s != NULL) { *fnamep = s; *fnamelen = (int)STRLEN(s); vim_free(*bufp); *bufp = s; didit = TRUE; } } vim_free(sub); vim_free(str); } vim_free(pat); } } /* after using ":s", repeat all the modifiers */ if (didit) goto repeat; } } return valid; } /* * Perform a substitution on "str" with pattern "pat" and substitute "sub". * "flags" can be "g" to do a global substitute. * Returns an allocated string, NULL for error. */ char_u * do_string_sub(str, pat, sub, flags) char_u *str; char_u *pat; char_u *sub; char_u *flags; { int sublen; regmatch_T regmatch; int i; int do_all; char_u *tail; garray_T ga; char_u *ret; char_u *save_cpo; /* Make 'cpoptions' empty, so that the 'l' flag doesn't work here */ save_cpo = p_cpo; p_cpo = (char_u *)""; ga_init2(&ga, 1, 200); do_all = (flags[0] == 'g'); regmatch.rm_ic = p_ic; regmatch.regprog = vim_regcomp(pat, RE_MAGIC + RE_STRING); if (regmatch.regprog != NULL) { tail = str; while (vim_regexec_nl(®match, str, (colnr_T)(tail - str))) { /* * Get some space for a temporary buffer to do the substitution * into. It will contain: * - The text up to where the match is. * - The substituted text. * - The text after the match. */ sublen = vim_regsub(®match, sub, tail, FALSE, TRUE, FALSE); if (ga_grow(&ga, (int)(STRLEN(tail) + sublen - (regmatch.endp[0] - regmatch.startp[0]))) == FAIL) { ga_clear(&ga); break; } /* copy the text up to where the match is */ i = (int)(regmatch.startp[0] - tail); mch_memmove((char_u *)ga.ga_data + ga.ga_len, tail, (size_t)i); /* add the substituted text */ (void)vim_regsub(®match, sub, (char_u *)ga.ga_data + ga.ga_len + i, TRUE, TRUE, FALSE); ga.ga_len += i + sublen - 1; /* avoid getting stuck on a match with an empty string */ if (tail == regmatch.endp[0]) { if (*tail == NUL) break; *((char_u *)ga.ga_data + ga.ga_len) = *tail++; ++ga.ga_len; } else { tail = regmatch.endp[0]; if (*tail == NUL) break; } if (!do_all) break; } if (ga.ga_data != NULL) STRCPY((char *)ga.ga_data + ga.ga_len, tail); vim_free(regmatch.regprog); } ret = vim_strsave(ga.ga_data == NULL ? str : (char_u *)ga.ga_data); ga_clear(&ga); p_cpo = save_cpo; return ret; } #endif /* defined(FEAT_MODIFY_FNAME) || defined(FEAT_EVAL) */