ref: 0e611cdc0c81a90dabfcb2ab96992acca95b886d
dir: /jsbuiltin.c/
#include "jsi.h"
#include "jslex.h"
#include "jscompile.h"
#include "jsvalue.h"
#include "jsbuiltin.h"
#include "regexp.h"
static void jsB_globalf(js_State *J, const char *name, js_CFunction cfun, int n)
{
js_newcfunction(J, cfun, name, n);
js_defglobal(J, name, JS_DONTENUM);
}
void jsB_propf(js_State *J, const char *name, js_CFunction cfun, int n)
{
const char *pname = strrchr(name, '.');
pname = pname ? pname + 1 : name;
js_newcfunction(J, cfun, name, n);
js_defproperty(J, -2, pname, JS_DONTENUM);
}
void jsB_propn(js_State *J, const char *name, double number)
{
js_pushnumber(J, number);
js_defproperty(J, -2, name, JS_READONLY | JS_DONTENUM | JS_DONTCONF);
}
void jsB_props(js_State *J, const char *name, const char *string)
{
js_pushliteral(J, string);
js_defproperty(J, -2, name, JS_DONTENUM);
}
static void jsB_parseInt(js_State *J)
{
const char *s = js_tostring(J, 1);
int radix = js_isdefined(J, 2) ? js_tointeger(J, 2) : 0;
double sign = 1;
double n;
char *e;
while (jsY_iswhite(*s) || jsY_isnewline(*s))
++s;
if (*s == '-') {
++s;
sign = -1;
} else if (*s == '+') {
++s;
}
if (radix == 0) {
radix = 10;
if (s[0] == '0' && (s[1] == 'x' || s[1] == 'X')) {
s += 2;
radix = 16;
}
} else if (radix < 2 || radix > 36) {
js_pushnumber(J, NAN);
return;
}
n = js_strtol(s, &e, radix);
if (s == e)
js_pushnumber(J, NAN);
else
js_pushnumber(J, n * sign);
}
static void jsB_parseFloat(js_State *J)
{
const char *s = js_tostring(J, 1);
char *e;
double n;
while (jsY_iswhite(*s) || jsY_isnewline(*s)) ++s;
if (!strncmp(s, "Infinity", 8))
js_pushnumber(J, INFINITY);
else if (!strncmp(s, "+Infinity", 9))
js_pushnumber(J, INFINITY);
else if (!strncmp(s, "-Infinity", 9))
js_pushnumber(J, -INFINITY);
else {
n = js_stringtofloat(s, &e);
if (e == s)
js_pushnumber(J, NAN);
else
js_pushnumber(J, n);
}
}
static void jsB_isNaN(js_State *J)
{
double n = js_tonumber(J, 1);
js_pushboolean(J, isnan(n));
}
static void jsB_isFinite(js_State *J)
{
double n = js_tonumber(J, 1);
js_pushboolean(J, isfinite(n));
}
static void Encode(js_State *J, const char *str_, const char *unescaped)
{
/* NOTE: volatile to silence GCC warning about longjmp clobbering a variable */
const char * volatile str = str_;
js_Buffer *sb = NULL;
static const char *HEX = "0123456789ABCDEF";
if (js_try(J)) {
js_free(J, sb);
js_throw(J);
}
while (*str) {
int c = (unsigned char) *str++;
if (strchr(unescaped, c))
js_putc(J, &sb, c);
else {
js_putc(J, &sb, '%');
js_putc(J, &sb, HEX[(c >> 4) & 0xf]);
js_putc(J, &sb, HEX[c & 0xf]);
}
}
js_putc(J, &sb, 0);
js_pushstring(J, sb ? sb->s : "");
js_endtry(J);
js_free(J, sb);
}
static void Decode(js_State *J, const char *str_, const char *reserved)
{
/* NOTE: volatile to silence GCC warning about longjmp clobbering a variable */
const char * volatile str = str_;
js_Buffer *sb = NULL;
int a, b;
if (js_try(J)) {
js_free(J, sb);
js_throw(J);
}
while (*str) {
int c = (unsigned char) *str++;
if (c != '%')
js_putc(J, &sb, c);
else {
if (!str[0] || !str[1])
js_urierror(J, "truncated escape sequence");
a = *str++;
b = *str++;
if (!jsY_ishex(a) || !jsY_ishex(b))
js_urierror(J, "invalid escape sequence");
c = jsY_tohex(a) << 4 | jsY_tohex(b);
if (!strchr(reserved, c))
js_putc(J, &sb, c);
else {
js_putc(J, &sb, '%');
js_putc(J, &sb, a);
js_putc(J, &sb, b);
}
}
}
js_putc(J, &sb, 0);
js_pushstring(J, sb ? sb->s : "");
js_endtry(J);
js_free(J, sb);
}
#define URIRESERVED ";/?:@&=+$,"
#define URIALPHA "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ"
#define URIDIGIT "0123456789"
#define URIMARK "-_.!~*'()"
#define URIUNESCAPED URIALPHA URIDIGIT URIMARK
static void jsB_decodeURI(js_State *J)
{
Decode(J, js_tostring(J, 1), URIRESERVED "#");
}
static void jsB_decodeURIComponent(js_State *J)
{
Decode(J, js_tostring(J, 1), "");
}
static void jsB_encodeURI(js_State *J)
{
Encode(J, js_tostring(J, 1), URIUNESCAPED URIRESERVED "#");
}
static void jsB_encodeURIComponent(js_State *J)
{
Encode(J, js_tostring(J, 1), URIUNESCAPED);
}
void jsB_init(js_State *J)
{
/* Create the prototype objects here, before the constructors */
J->Object_prototype = jsV_newobject(J, JS_COBJECT, NULL);
J->Array_prototype = jsV_newobject(J, JS_CARRAY, J->Object_prototype);
J->Function_prototype = jsV_newobject(J, JS_CCFUNCTION, J->Object_prototype);
J->Boolean_prototype = jsV_newobject(J, JS_CBOOLEAN, J->Object_prototype);
J->Number_prototype = jsV_newobject(J, JS_CNUMBER, J->Object_prototype);
J->String_prototype = jsV_newobject(J, JS_CSTRING, J->Object_prototype);
J->Date_prototype = jsV_newobject(J, JS_CDATE, J->Object_prototype);
J->RegExp_prototype = jsV_newobject(J, JS_CREGEXP, J->Object_prototype);
J->RegExp_prototype->u.r.prog = js_regcompx(J->alloc, J->actx, "(?:)", 0, NULL);
J->RegExp_prototype->u.r.source = js_strdup(J, "(?:)");
/* All the native error types */
J->Error_prototype = jsV_newobject(J, JS_CERROR, J->Object_prototype);
J->EvalError_prototype = jsV_newobject(J, JS_CERROR, J->Error_prototype);
J->RangeError_prototype = jsV_newobject(J, JS_CERROR, J->Error_prototype);
J->ReferenceError_prototype = jsV_newobject(J, JS_CERROR, J->Error_prototype);
J->SyntaxError_prototype = jsV_newobject(J, JS_CERROR, J->Error_prototype);
J->TypeError_prototype = jsV_newobject(J, JS_CERROR, J->Error_prototype);
J->URIError_prototype = jsV_newobject(J, JS_CERROR, J->Error_prototype);
/* Create the constructors and fill out the prototype objects */
jsB_initobject(J);
jsB_initarray(J);
jsB_initfunction(J);
jsB_initboolean(J);
jsB_initnumber(J);
jsB_initstring(J);
jsB_initregexp(J);
jsB_initdate(J);
jsB_initerror(J);
jsB_initmath(J);
jsB_initjson(J);
/* Initialize the global object */
js_pushnumber(J, NAN);
js_defglobal(J, "NaN", JS_READONLY | JS_DONTENUM | JS_DONTCONF);
js_pushnumber(J, INFINITY);
js_defglobal(J, "Infinity", JS_READONLY | JS_DONTENUM | JS_DONTCONF);
js_pushundefined(J);
js_defglobal(J, "undefined", JS_READONLY | JS_DONTENUM | JS_DONTCONF);
jsB_globalf(J, "parseInt", jsB_parseInt, 1);
jsB_globalf(J, "parseFloat", jsB_parseFloat, 1);
jsB_globalf(J, "isNaN", jsB_isNaN, 1);
jsB_globalf(J, "isFinite", jsB_isFinite, 1);
jsB_globalf(J, "decodeURI", jsB_decodeURI, 1);
jsB_globalf(J, "decodeURIComponent", jsB_decodeURIComponent, 1);
jsB_globalf(J, "encodeURI", jsB_encodeURI, 1);
jsB_globalf(J, "encodeURIComponent", jsB_encodeURIComponent, 1);
}