ref: ba32e4b0e92489d28b483fd6cf00121cad6bd244
parent: 7e65db3e745be35cd3622de1ef49f1ee7a278318
author: JeffBezanson <jeff.bezanson@gmail.com>
date: Sun May 31 14:58:09 EDT 2009
simplifying the whole list* situation, taking better advantage of existing builtin functionality
--- a/femtolisp/flisp.boot
+++ b/femtolisp/flisp.boot
@@ -82,8 +82,6 @@
#function("n1c0_q42;" [#function("r^g00F6Q02g00Ng00f0g00j02P2k005202f0;" [])])nreconc
#function("n2e0e1f031f142;" [nconc nreverse])-nlist*
-#function("o0e0f041;" [apply-nlist*])newline
#function("n0e0e1312];" [princ *linefeed*])nestlist
@@ -119,7 +117,7 @@
macroexpand-1
#function("n1f0?6;0f0;c0e1f031q42;" [#function("rf06?0f0g00Nt2;g00;" []) macrocall?])macroexpand
-#function("n1c0^^q43;" [#function("rc0mj02c1mj12f1g00_42;" [#function("n2c0e1f031F6]0e2f031F6T0c3e1f031K5Z0e4f0315^0^q42;" [#function("rc0e1f031g11f0g0132q43;" [#function("re0c1e2g1031f0A6G0f15Y0c1f0f1L3e3c4mf032Ke5g103144;" [nlist* lambda cadr map #function("n1^;" []) lastcdr]) get-defined-vars]) cddr cdddr begin caddr]) #function("n2f0?6;0f0;c0e1f0Mf132q42;" [#function("rf06N0g11e0f031g00NQ2e1f03142;c2e3g0031q42;" [cadr caddr #function("rf06G0g21f0g10NQ2g1142;g10Mc0<6U0g10;g10Mc1<6k0g20g10g1142;g10Mc2<6\x9a0c3e4g1031e5c1L1_L1e6e7g10313133L1q43;e8c9mg1042;" [quote lambda let-syntax #function("rg31f1e0e1c2mf032g213242;" [nconc map #function("n1f0Mg41e0f031g3132g31L3;" [cadr])]) cadr nconc copy-list cddr map #function("n1g31f0g2142;" [])]) macrocall?]) assq])])])+#function("n1c0^^q43;" [#function("rc0mj02c1mj12f1g00_42;" [#function("n2c0e1f031F6]0e2f031F6T0c3e1f031K5Z0e4f0315^0^q42;" [#function("rc0e1f031g11f0g0132q43;" [#function("re0c1e2g1031f0A6G0f15Y0c1f0f1L3e3c4mf032Ke5g103144;" [list* lambda cadr map #function("n1^;" []) lastcdr]) get-defined-vars]) cddr cdddr begin caddr]) #function("n2f0?6;0f0;c0e1f0Mf132q42;" [#function("rf06N0g11e0f031g00NQ2e1f03142;c2e3g0031q42;" [cadr caddr #function("rf06G0g21f0g10NQ2g1142;g10Mc0<6U0g10;g10Mc1<6k0g20g10g1142;g10Mc2<6\x9a0c3e4g1031e5c1L1_L1e6e7g10313133L1q43;e8c9mg1042;" [quote lambda let-syntax #function("rg31f1e0e1c2mf032g213242;" [nconc map #function("n1f0Mg41e0f031g3132g31L3;" [cadr])]) cadr nconc copy-list cddr map #function("n1g31f0g2142;" [])]) macrocall?]) assq])])])macrocall?
#function("n1f0MC16E02e0e1f0M^43;" [get *syntax-environment*])lookup-sym
@@ -140,8 +138,6 @@
#function("n2e0f1`326>0_;f0Me1f0Nf1av32K;" [<= list-head])list->vector
#function("n1e0f0t2;" [vector])-list*
-#function("o0e0e1f03141;" [apply-nlist* copy-list])length>
#function("n2f1`X6<0f0;f1`W6N0f0F16M02f0;f0A6Y0f1`X;e0f0Nf1av42;" [length>])length=
@@ -269,7 +265,7 @@
builtin->instruction
#function("n1c0e1e2c3f03231q42;" [#function("re0e1f03216@02f0;" [has? Instructions]) intern string #\:])bq-process
-#function("n1c0^q42;" [#function("rc0mj02e1g00316]0g00H6Y0c2e3e4g003131q42;g00;g00?6l0c5g00L2;g00Mc6<6\x860e3e3e7g00313141;g00Mc8<6\x980e7g0041;e9f0g0032@6\xbb0c:e;g0031e<e=g0032q43;c>g00_q43;" [#function("n1f0F16K02f0Mc0<17K02f0Mc1<17U02f0c2<;" [*comma-at* *comma-dot* *comma*]) self-evaluating? #function("rf0Mc0<6A0e1f0NK;e2e1f0L3;" [list vector apply]) bq-process vector->list quote backquote cadr *comma* any #function("rf0A6=0c0f1K;e1c2f1Ke3f031L142;" [list nconc nlist* bq-process]) lastcdr map bq-bracket1 #function("r^f0F16A02f0Mc0<@6Z02e1f0M31f1Kj12f0Nj05202c2f0F6t0e3f1e4f031L1325\x910f0A6\x830e5f1315\x910e3f1e6f031L132q42;" [*comma* bq-bracket #function("rf0NA6<0f0M;c0f0K;" [nconc]) nreconc cadr nreverse bq-process])])])+#function("n1c0^q42;" [#function("rc0mj02e1g00316]0g00H6Y0c2e3e4g003131q42;g00;g00?6l0c5g00L2;g00Mc6<6\x860e3e3e7g00313141;g00Mc8<6\x980e7g0041;e9f0g0032@6\xbb0c:e;g0031e<e=g0032q43;c>g00_q43;" [#function("n1f0F16K02f0Mc0<17K02f0Mc1<17U02f0c2<;" [*comma-at* *comma-dot* *comma*]) self-evaluating? #function("rf0Mc0<6A0e1f0NK;e2e1f0L3;" [list vector apply]) bq-process vector->list quote backquote cadr *comma* any #function("rf0A6=0c0f1K;e1c2f1Ke3f031L142;" [list nconc list* bq-process]) lastcdr map bq-bracket1 #function("r^f0F16A02f0Mc0<@6Z02e1f0M31f1Kj12f0Nj05202c2f0F6t0e3f1e4f031L1325\x910f0A6\x830e5f1315\x910e3f1e6f031L132q42;" [*comma* bq-bracket #function("rf0NA6<0f0M;c0f0K;" [nconc]) nreconc cadr nreverse bq-process])])])bq-bracket1
#function("n1f0F16@02f0Mc0<6J0e1f041;e2f041;" [*comma* cadr bq-process])bq-bracket
--- a/femtolisp/flisp.c
+++ b/femtolisp/flisp.c
@@ -680,7 +680,9 @@
// eval -----------------------------------------------------------------------
-static value_t list(value_t *args, uint32_t nargs)
+#define list(a,n) _list((a),(n),0)
+
+static value_t _list(value_t *args, uint32_t nargs, int star)
{cons_t *c;
uint32_t i;
@@ -692,7 +694,7 @@
c->cdr = tagptr(c+1, TAG_CONS);
c++;
}
- if (nargs > MAX_ARGS)
+ if (star || nargs > MAX_ARGS)
(c-2)->cdr = (c-1)->car;
else
(c-1)->cdr = NIL;
@@ -699,6 +701,8 @@
return v;
}
+#define FL_COPYLIST(l) apply_liststar((l),0)
+
// perform (apply list* L)
// like the function list() above, but takes arguments from a list
// rather than from an array (the stack)
@@ -736,22 +740,18 @@
value_t fl_copylist(value_t *args, u_int32_t nargs)
{ argcount("copy-list", nargs, 1);- return apply_liststar(args[0], 0);
+ return FL_COPYLIST(args[0]);
}
-value_t fl_apply_nliststar(value_t *args, u_int32_t nargs)
+value_t fl_liststar(value_t *args, u_int32_t nargs)
{- argcount("apply-nlist*", nargs, 1);- value_t v = args[0];
- value_t *plastcdr = &args[0];
- while (iscons(v)) {- if (!iscons(cdr_(v)))
- *plastcdr = car_(v);
- else
- plastcdr = &cdr_(v);
- v = cdr_(v);
+ if (nargs == 1) return args[0];
+ else if (nargs == 0) argcount("list*", nargs, 1);+ if (nargs > MAX_ARGS) {+ args[MAX_ARGS] = apply_liststar(args[MAX_ARGS], 1);
+ return list(args, nargs);
}
- return args[0];
+ return _list(args, nargs, 1);
}
static value_t do_trycatch()
@@ -1501,7 +1501,7 @@
{ "gensym", fl_gensym }, { "hash", fl_hash }, { "copy-list", fl_copylist },- { "apply-nlist*", fl_apply_nliststar },+ { "list*", fl_liststar }, { NULL, NULL }};
--- a/femtolisp/system.lsp
+++ b/femtolisp/system.lsp
@@ -177,10 +177,6 @@
((null? lst) (= n 0))
(else (length= (cdr lst) (- n 1)))))
-(define (list* . l) (apply-nlist* (copy-list l)))
-
-(define (nlist* . l) (apply-nlist* l))
-
(define (lastcdr l)
(if (atom? l) l
(lastcdr (cdr l))))
@@ -301,7 +297,7 @@
(forms (map bq-bracket1 x)))
(if (null? lc)
(cons 'list forms)
- (nconc (cons 'nlist* forms) (list (bq-process lc))))))
+ (nconc (cons 'list* forms) (list (bq-process lc))))))
(#t (let ((p x) (q ()))
(while (and (pair? p)
(not (eq (car p) '*comma*)))
@@ -613,13 +609,13 @@
#f)))
(let ((V (get-defined-vars B))
(Be (macroexpand-in B env)))
- (nlist* 'lambda
- (cadr e)
- (if (null? V)
- Be
- (cons (list 'lambda V Be)
- (map (lambda (x) #f) V)))
- (lastcdr e)))))
+ (list* 'lambda
+ (cadr e)
+ (if (null? V)
+ Be
+ (cons (list 'lambda V Be)
+ (map (lambda (x) #f) V)))
+ (lastcdr e)))))
(define (macroexpand-in e env)
(if (atom? e) e
(let ((f (assq (car e) env)))