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Comparing cvsroot/microscheme/scheme.c (file contents):
Revision 1.25 by root, Fri Nov 27 04:37:26 2015 UTC vs.
Revision 1.44 by root, Mon Nov 30 06:49:11 2015 UTC

…		…
16	* (MINISCM) This is a revised and modified version by Akira KIDA.	16	* (MINISCM) This is a revised and modified version by Akira KIDA.
17	* (MINISCM) current version is 0.85k4 (15 May 1994)	17	* (MINISCM) current version is 0.85k4 (15 May 1994)
18	*	18	*
19	*/	19	*/
20		20
		21	#define EXPERIMENT 1
		22
21	#define PAGE_SIZE 4096 /* does not work on sparc/alpha */	23	#define PAGE_SIZE 4096 /* does not work on sparc/alpha */
22	#include "malloc.c"	24	#include "malloc.c"
23		25
24	#define SCHEME_SOURCE	26	#define SCHEME_SOURCE
25	#include "scheme-private.h"	27	#include "scheme-private.h"
…		…
34		36
35	#include <sys/types.h>	37	#include <sys/types.h>
36	#include <sys/stat.h>	38	#include <sys/stat.h>
37	#include <fcntl.h>	39	#include <fcntl.h>
38		40
		41	#if !USE_ERROR_CHECKING
		42	# define NDEBUG
		43	#endif
		44
		45	#include <assert.h>
		46	#include <stdlib.h>
39	#include <string.h>	47	#include <string.h>
40	#include <stdlib.h>
41		48
42	#include <limits.h>	49	#include <limits.h>
43	#include <inttypes.h>	50	#include <inttypes.h>
44	#include <float.h>	51	#include <float.h>
45	//#include <ctype.h>	52	//#include <ctype.h>
		53
		54	#if '1' != '0' + 1 \
		55	|| '2' != '0' + 2 || '3' != '0' + 3 || '4' != '0' + 4 || '5' != '0' + 5 \
		56	|| '6' != '0' + 6 || '7' != '0' + 7 || '8' != '0' + 8 || '9' != '0' + 9 \
		57	|| 'b' != 'a' + 1 || 'c' != 'a' + 2 || 'd' != 'a' + 3 || 'e' != 'a' + 4 \
		58	|| 'f' != 'a' + 5
		59	# error "execution character set digits not consecutive"
		60	#endif
46		61
47	enum {	62	enum {
48	TOK_EOF,	63	TOK_EOF,
49	TOK_LPAREN,	64	TOK_LPAREN,
50	TOK_RPAREN,	65	TOK_RPAREN,
51	TOK_DOT,	66	TOK_DOT,
52	TOK_ATOM,	67	TOK_ATOM,
		68	TOK_DOTATOM, /* atom name starting with '.' */
		69	TOK_STRATOM, /* atom name enclosed in | */
53	TOK_QUOTE,	70	TOK_QUOTE,
54	TOK_DQUOTE,	71	TOK_DQUOTE,
55	TOK_BQUOTE,	72	TOK_BQUOTE,
56	TOK_COMMA,	73	TOK_COMMA,
57	TOK_ATMARK,	74	TOK_ATMARK,
…		…
59	TOK_SHARP_CONST,	76	TOK_SHARP_CONST,
60	TOK_VEC	77	TOK_VEC
61	};	78	};
62		79
63	#define BACKQUOTE '`'	80	#define BACKQUOTE '`'
64	#define DELIMITERS "()\";\f\t\v\n\r "	81	#define WHITESPACE " \t\r\n\v\f"
		82	#define DELIMITERS "()\";" WHITESPACE
65		83
66	#define NIL (&SCHEME_V->xNIL) //TODO: make this 0?	84	#define NIL (&SCHEME_V->xNIL) //TODO: make this 0?
67	#define S_T (&SCHEME_V->xT) //TODO: magic ptr value?	85	#define S_T (&SCHEME_V->xT) //TODO: magic ptr value?
68	#define S_F (&SCHEME_V->xF) //TODO: magic ptr value?	86	#define S_F (&SCHEME_V->xF) //TODO: magic ptr value?
69	#define S_SINK (&SCHEME_V->xsink)	87	#define S_SINK (&SCHEME_V->xsink)
…		…
182	# define FIRST_CELLSEGS 3	200	# define FIRST_CELLSEGS 3
183	#endif	201	#endif
184		202
185	enum scheme_types	203	enum scheme_types
186	{	204	{
		205	T_INTEGER,
187	T_FREE,	206	T_REAL,
188	T_STRING,	207	T_STRING,
189	T_NUMBER,
190	T_SYMBOL,	208	T_SYMBOL,
191	T_PROC,	209	T_PROC,
192	T_PAIR,	210	T_PAIR, /* also used for free cells */
193	T_CLOSURE,	211	T_CLOSURE,
194	T_CONTINUATION,	212	T_CONTINUATION,
195	T_FOREIGN,	213	T_FOREIGN,
196	T_CHARACTER,	214	T_CHARACTER,
197	T_PORT,	215	T_PORT,
…		…
207	#define T_SYNTAX 0x0010	225	#define T_SYNTAX 0x0010
208	#define T_IMMUTABLE 0x0020	226	#define T_IMMUTABLE 0x0020
209	#define T_ATOM 0x0040 /* only for gc */	227	#define T_ATOM 0x0040 /* only for gc */
210	#define T_MARK 0x0080 /* only for gc */	228	#define T_MARK 0x0080 /* only for gc */
211		229
		230	/* num, for generic arithmetic */
		231	struct num
		232	{
		233	IVALUE ivalue;
		234	#if USE_REAL
		235	RVALUE rvalue;
		236	char is_fixnum;
		237	#endif
		238	};
		239
		240	#if USE_REAL
		241	# define num_is_fixnum(n) (n).is_fixnum
		242	# define num_set_fixnum(n,f) (n).is_fixnum = (f)
		243	# define num_ivalue(n) (n).ivalue
		244	# define num_rvalue(n) (n).rvalue
		245	# define num_set_ivalue(n,i) (n).rvalue = (n).ivalue = (i)
		246	# define num_set_rvalue(n,r) (n).rvalue = (r)
		247	#else
		248	# define num_is_fixnum(n) 1
		249	# define num_set_fixnum(n,f) 0
		250	# define num_ivalue(n) (n).ivalue
		251	# define num_rvalue(n) (n).ivalue
		252	# define num_set_ivalue(n,i) (n).ivalue = (i)
		253	# define num_set_rvalue(n,r) (n).ivalue = (r)
		254	#endif
		255
212	enum num_op { NUM_ADD, NUM_SUB, NUM_MUL, NUM_INTDIV };	256	enum num_op { NUM_ADD, NUM_SUB, NUM_MUL, NUM_INTDIV };
213		257
214	static num num_op (enum num_op op, num a, num b);	258	static num num_op (enum num_op op, num a, num b);
215	static num num_intdiv (num a, num b);	259	static num num_intdiv (num a, num b);
216	static num num_rem (num a, num b);	260	static num num_rem (num a, num b);
…		…
236	}	280	}
237		281
238	#define strvalue(p) ((p)->object.string.svalue)	282	#define strvalue(p) ((p)->object.string.svalue)
239	#define strlength(p) ((p)->object.string.length)	283	#define strlength(p) ((p)->object.string.length)
240		284
241	INTERFACE int is_list (SCHEME_P_ pointer p);
242
243	INTERFACE int	285	INTERFACE int
244	is_vector (pointer p)	286	is_vector (pointer p)
245	{	287	{
246	return type (p) == T_VECTOR;	288	return type (p) == T_VECTOR;
247	}	289	}
248		290
249	#define vecvalue(p) ((p)->object.vector.vvalue)	291	#define vecvalue(p) ((p)->object.vector.vvalue)
250	#define veclength(p) ((p)->object.vector.length)	292	#define veclength(p) ((p)->object.vector.length)
251	INTERFACE void fill_vector (pointer vec, pointer obj);	293	INTERFACE void fill_vector (pointer vec, uint32_t start, pointer obj);
252	INTERFACE uint32_t vector_length (pointer vec);
253	INTERFACE pointer vector_elem (pointer vec, uint32_t ielem);	294	INTERFACE pointer vector_get (pointer vec, uint32_t ielem);
254	INTERFACE void set_vector_elem (pointer vec, uint32_t ielem, pointer a);	295	INTERFACE void vector_set (pointer vec, uint32_t ielem, pointer a);
255		296
256	INTERFACE uint32_t	297	INTERFACE int
257	vector_length (pointer vec)	298	is_integer (pointer p)
258	{	299	{
259	return vec->object.vector.length;	300	return type (p) == T_INTEGER;
		301	}
		302
		303	/* not the same as in scheme, where integers are (correctly :) reals */
		304	INTERFACE int
		305	is_real (pointer p)
		306	{
		307	return type (p) == T_REAL;
260	}	308	}
261		309
262	INTERFACE int	310	INTERFACE int
263	is_number (pointer p)	311	is_number (pointer p)
264	{	312	{
265	return type (p) == T_NUMBER;	313	return is_integer (p) || is_real (p);
266	}
267
268	INTERFACE int
269	is_integer (pointer p)
270	{
271	return is_number (p) && num_is_fixnum (p->object.number);
272	}
273
274	INTERFACE int
275	is_real (pointer p)
276	{
277	return is_number (p) && !num_is_fixnum (p->object.number);
278	}	314	}
279		315
280	INTERFACE int	316	INTERFACE int
281	is_character (pointer p)	317	is_character (pointer p)
282	{	318	{
…		…
287	string_value (pointer p)	323	string_value (pointer p)
288	{	324	{
289	return strvalue (p);	325	return strvalue (p);
290	}	326	}
291		327
292	ecb_inline num
293	nvalue (pointer p)
294	{
295	return (p)->object.number;
296	}
297
298	static IVALUE
299	num_get_ivalue (const num n)
300	{
301	return num_is_fixnum (n) ? num_ivalue (n) : (IVALUE)num_rvalue (n);
302	}
303
304	static RVALUE
305	num_get_rvalue (const num n)
306	{
307	return num_is_fixnum (n) ? (RVALUE)num_ivalue (n) : num_rvalue (n);
308	}
309
310	INTERFACE IVALUE
311	ivalue (pointer p)
312	{
313	return num_get_ivalue (p->object.number);
314	}
315
316	INTERFACE RVALUE
317	rvalue (pointer p)
318	{
319	return num_get_rvalue (p->object.number);
320	}
321
322	#define ivalue_unchecked(p) ((p)->object.number.value.ivalue)	328	#define ivalue_unchecked(p) (p)->object.ivalue
		329	#define set_ivalue(p,v) (p)->object.ivalue = (v)
		330
323	#if USE_REAL	331	#if USE_REAL
324	# define rvalue_unchecked(p) ((p)->object.number.value.rvalue)	332	#define rvalue_unchecked(p) (p)->object.rvalue
325	# define set_num_integer(p) (p)->object.number.is_fixnum=1;	333	#define set_rvalue(p,v) (p)->object.rvalue = (v)
326	# define set_num_real(p) (p)->object.number.is_fixnum=0;
327	#else	334	#else
328	# define rvalue_unchecked(p) ((p)->object.number.value.ivalue)	335	#define rvalue_unchecked(p) (p)->object.ivalue
329	# define set_num_integer(p) 0	336	#define set_rvalue(p,v) (p)->object.ivalue = (v)
330	# define set_num_real(p) 0
331	#endif	337	#endif
332		338
333	INTERFACE long	339	INTERFACE long
334	charvalue (pointer p)	340	charvalue (pointer p)
335	{	341	{
…		…
403	}	409	}
404		410
405	INTERFACE char *	411	INTERFACE char *
406	symname (pointer p)	412	symname (pointer p)
407	{	413	{
408	return strvalue (car (p));	414	return strvalue (p);
409	}	415	}
410		416
411	#if USE_PLIST	417	#if USE_PLIST
		418	#define symprop(p) cdr(p)
412	SCHEME_EXPORT int	419	SCHEME_EXPORT int
413	hasprop (pointer p)	420	hasprop (pointer p)
414	{	421	{
415	return typeflag (p) & T_SYMBOL;	422	return typeflag (p) & T_SYMBOL;
416	}	423	}
417
418	# define symprop(p) cdr(p)
419	#endif	424	#endif
420		425
421	INTERFACE int	426	INTERFACE int
422	is_syntax (pointer p)	427	is_syntax (pointer p)
423	{	428	{
…		…
437	}	442	}
438		443
439	INTERFACE char *	444	INTERFACE char *
440	syntaxname (pointer p)	445	syntaxname (pointer p)
441	{	446	{
442	return strvalue (car (p));	447	return strvalue (p);
443	}	448	}
444		449
445	#define procnum(p) ivalue (p)	450	#define procnum(p) ivalue_unchecked (p)
446	static const char *procname (pointer x);	451	static const char *procname (pointer x);
447		452
448	INTERFACE int	453	INTERFACE int
449	is_closure (pointer p)	454	is_closure (pointer p)
450	{	455	{
…		…
511	setimmutable (pointer p)	516	setimmutable (pointer p)
512	{	517	{
513	#if USE_ERROR_CHECKING	518	#if USE_ERROR_CHECKING
514	set_typeflag (p, typeflag (p) | T_IMMUTABLE);	519	set_typeflag (p, typeflag (p) | T_IMMUTABLE);
515	#endif	520	#endif
		521	}
		522
		523	/* Result is:
		524	proper list: length
		525	circular list: -1
		526	not even a pair: -2
		527	dotted list: -2 minus length before dot
		528	*/
		529	INTERFACE int
		530	list_length (SCHEME_P_ pointer a)
		531	{
		532	int i = 0;
		533	pointer slow, fast;
		534
		535	slow = fast = a;
		536
		537	while (1)
		538	{
		539	if (fast == NIL)
		540	return i;
		541
		542	if (!is_pair (fast))
		543	return -2 - i;
		544
		545	fast = cdr (fast);
		546	++i;
		547
		548	if (fast == NIL)
		549	return i;
		550
		551	if (!is_pair (fast))
		552	return -2 - i;
		553
		554	++i;
		555	fast = cdr (fast);
		556
		557	/* Safe because we would have already returned if `fast'
		558	encountered a non-pair. */
		559	slow = cdr (slow);
		560
		561	if (fast == slow)
		562	{
		563	/* the fast pointer has looped back around and caught up
		564	with the slow pointer, hence the structure is circular,
		565	not of finite length, and therefore not a list */
		566	return -1;
		567	}
		568	}
		569	}
		570
		571	INTERFACE int
		572	is_list (SCHEME_P_ pointer a)
		573	{
		574	return list_length (SCHEME_A_ a) >= 0;
516	}	575	}
517		576
518	#if USE_CHAR_CLASSIFIERS	577	#if USE_CHAR_CLASSIFIERS
519	ecb_inline int	578	ecb_inline int
520	Cisalpha (int c)	579	Cisalpha (int c)
…		…
609	#endif	668	#endif
610		669
611	static int file_push (SCHEME_P_ const char *fname);	670	static int file_push (SCHEME_P_ const char *fname);
612	static void file_pop (SCHEME_P);	671	static void file_pop (SCHEME_P);
613	static int file_interactive (SCHEME_P);	672	static int file_interactive (SCHEME_P);
614	ecb_inline int is_one_of (char *s, int c);	673	ecb_inline int is_one_of (const char *s, int c);
615	static int alloc_cellseg (SCHEME_P_ int n);	674	static int alloc_cellseg (SCHEME_P_ int n);
616	ecb_inline pointer get_cell (SCHEME_P_ pointer a, pointer b);	675	ecb_inline pointer get_cell (SCHEME_P_ pointer a, pointer b);
617	static void finalize_cell (SCHEME_P_ pointer a);	676	static void finalize_cell (SCHEME_P_ pointer a);
618	static int count_consecutive_cells (pointer x, int needed);	677	static int count_consecutive_cells (pointer x, int needed);
619	static pointer find_slot_in_env (SCHEME_P_ pointer env, pointer sym, int all);	678	static pointer find_slot_in_env (SCHEME_P_ pointer env, pointer sym, int all);
…		…
636	static void mark (pointer a);	695	static void mark (pointer a);
637	static void gc (SCHEME_P_ pointer a, pointer b);	696	static void gc (SCHEME_P_ pointer a, pointer b);
638	static int basic_inchar (port *pt);	697	static int basic_inchar (port *pt);
639	static int inchar (SCHEME_P);	698	static int inchar (SCHEME_P);
640	static void backchar (SCHEME_P_ int c);	699	static void backchar (SCHEME_P_ int c);
641	static char *readstr_upto (SCHEME_P_ char *delim);	700	static char *readstr_upto (SCHEME_P_ int skip, const char *delim);
642	static pointer readstrexp (SCHEME_P);	701	static pointer readstrexp (SCHEME_P_ char delim);
643	ecb_inline int skipspace (SCHEME_P);	702	ecb_inline int skipspace (SCHEME_P);
644	static int token (SCHEME_P);	703	static int token (SCHEME_P);
645	static void printslashstring (SCHEME_P_ char *s, int len);	704	static void printslashstring (SCHEME_P_ char *s, int len);
646	static void atom2str (SCHEME_P_ pointer l, int f, char **pp, int *plen);	705	static void atom2str (SCHEME_P_ pointer l, int f, char **pp, int *plen);
647	static void printatom (SCHEME_P_ pointer l, int f);	706	static void printatom (SCHEME_P_ pointer l, int f);
…		…
664	static void Eval_Cycle (SCHEME_P_ enum scheme_opcodes op);	723	static void Eval_Cycle (SCHEME_P_ enum scheme_opcodes op);
665	static void assign_syntax (SCHEME_P_ const char *name);	724	static void assign_syntax (SCHEME_P_ const char *name);
666	static int syntaxnum (pointer p);	725	static int syntaxnum (pointer p);
667	static void assign_proc (SCHEME_P_ enum scheme_opcodes, const char *name);	726	static void assign_proc (SCHEME_P_ enum scheme_opcodes, const char *name);
668		727
		728	static IVALUE
		729	ivalue (pointer x)
		730	{
		731	return is_integer (x) ? ivalue_unchecked (x) : rvalue_unchecked (x);
		732	}
		733
		734	static RVALUE
		735	rvalue (pointer x)
		736	{
		737	return is_integer (x) ? ivalue_unchecked (x) : rvalue_unchecked (x);
		738	}
		739
		740	INTERFACE num
		741	nvalue (pointer x)
		742	{
		743	num n;
		744
		745	num_set_fixnum (n, is_integer (x));
		746
		747	if (num_is_fixnum (n))
		748	num_set_ivalue (n, ivalue_unchecked (x));
		749	else
		750	num_set_rvalue (n, rvalue_unchecked (x));
		751
		752	return n;
		753	}
		754
669	static num	755	static num
670	num_op (enum num_op op, num a, num b)	756	num_op (enum num_op op, num a, num b)
671	{	757	{
672	num ret;	758	num ret;
673		759
674	num_set_fixnum (ret, num_is_fixnum (a) && num_is_fixnum (b));	760	num_set_fixnum (ret, num_is_fixnum (a) && num_is_fixnum (b));
675		761
676	if (num_is_fixnum (ret))	762	if (num_is_fixnum (ret))
677	{	763	{
678	IVALUE av = num_get_ivalue (a);
679	IVALUE bv = num_get_ivalue (b);
680
681	switch (op)	764	switch (op)
682	{	765	{
683	case NUM_ADD: av += bv; break;	766	case NUM_ADD: a.ivalue += b.ivalue; break;
684	case NUM_SUB: av -= bv; break;	767	case NUM_SUB: a.ivalue -= b.ivalue; break;
685	case NUM_MUL: av *= bv; break;	768	case NUM_MUL: a.ivalue *= b.ivalue; break;
686	case NUM_INTDIV: av /= bv; break;	769	case NUM_INTDIV: a.ivalue /= b.ivalue; break;
687	}	770	}
688		771
689	num_set_ivalue (ret, av);	772	num_set_ivalue (ret, a.ivalue);
690	}	773	}
		774	#if USE_REAL
691	else	775	else
692	{	776	{
693	RVALUE av = num_get_rvalue (a);
694	RVALUE bv = num_get_rvalue (b);
695
696	switch (op)	777	switch (op)
697	{	778	{
698	case NUM_ADD: av += bv; break;	779	case NUM_ADD: a.rvalue += b.rvalue; break;
699	case NUM_SUB: av -= bv; break;	780	case NUM_SUB: a.rvalue -= b.rvalue; break;
700	case NUM_MUL: av *= bv; break;	781	case NUM_MUL: a.rvalue *= b.rvalue; break;
701	case NUM_INTDIV: av /= bv; break;	782	case NUM_INTDIV: a.rvalue /= b.rvalue; break;
702	}	783	}
703		784
704	num_set_rvalue (ret, av);	785	num_set_rvalue (ret, a.rvalue);
705	}	786	}
		787	#endif
706		788
707	return ret;	789	return ret;
708	}	790	}
709		791
710	static num	792	static num
711	num_div (num a, num b)	793	num_div (num a, num b)
712	{	794	{
713	num ret;	795	num ret;
714		796
715	num_set_fixnum (ret, num_is_fixnum (a) && num_is_fixnum (b) && num_get_ivalue (a) % num_get_ivalue (b) == 0);	797	num_set_fixnum (ret, num_is_fixnum (a) && num_is_fixnum (b) && num_ivalue (a) % num_ivalue (b) == 0);
716		798
717	if (num_is_fixnum (ret))	799	if (num_is_fixnum (ret))
718	num_set_ivalue (ret, num_get_ivalue (a) / num_get_ivalue (b));	800	num_set_ivalue (ret, num_ivalue (a) / num_ivalue (b));
719	else	801	else
720	num_set_rvalue (ret, num_get_rvalue (a) / num_get_rvalue (b));	802	num_set_rvalue (ret, num_rvalue (a) / num_rvalue (b));
721		803
722	return ret;	804	return ret;
723	}	805	}
724		806
725	static num	807	static num
…		…
727	{	809	{
728	num ret;	810	num ret;
729	long e1, e2, res;	811	long e1, e2, res;
730		812
731	num_set_fixnum (ret, num_is_fixnum (a) && num_is_fixnum (b));	813	num_set_fixnum (ret, num_is_fixnum (a) && num_is_fixnum (b));
732	e1 = num_get_ivalue (a);	814	e1 = num_ivalue (a);
733	e2 = num_get_ivalue (b);	815	e2 = num_ivalue (b);
734	res = e1 % e2;	816	res = e1 % e2;
735		817
736	/* remainder should have same sign as second operand */	818	/* remainder should have same sign as second operand */
737	if (res > 0)	819	if (res > 0)
738	{	820	{
…		…
754	{	836	{
755	num ret;	837	num ret;
756	long e1, e2, res;	838	long e1, e2, res;
757		839
758	num_set_fixnum (ret, num_is_fixnum (a) && num_is_fixnum (b));	840	num_set_fixnum (ret, num_is_fixnum (a) && num_is_fixnum (b));
759	e1 = num_get_ivalue (a);	841	e1 = num_ivalue (a);
760	e2 = num_get_ivalue (b);	842	e2 = num_ivalue (b);
761	res = e1 % e2;	843	res = e1 % e2;
762		844
763	/* modulo should have same sign as second operand */	845	/* modulo should have same sign as second operand */
764	if (res * e2 < 0)	846	if (res * e2 < 0)
765	res += e2;	847	res += e2;
…		…
775	int is_fixnum = num_is_fixnum (a) && num_is_fixnum (b);	857	int is_fixnum = num_is_fixnum (a) && num_is_fixnum (b);
776	int ret;	858	int ret;
777		859
778	if (is_fixnum)	860	if (is_fixnum)
779	{	861	{
780	IVALUE av = num_get_ivalue (a);	862	IVALUE av = num_ivalue (a);
781	IVALUE bv = num_get_ivalue (b);	863	IVALUE bv = num_ivalue (b);
782		864
783	ret = av == bv ? 0 : av < bv ? -1 : +1;	865	ret = av == bv ? 0 : av < bv ? -1 : +1;
784	}	866	}
785	else	867	else
786	{	868	{
787	RVALUE av = num_get_rvalue (a);	869	RVALUE av = num_rvalue (a);
788	RVALUE bv = num_get_rvalue (b);	870	RVALUE bv = num_rvalue (b);
789		871
790	ret = av == bv ? 0 : av < bv ? -1 : +1;	872	ret = av == bv ? 0 : av < bv ? -1 : +1;
791	}	873	}
792		874
793	return ret;	875	return ret;
…		…
856	return k;	938	return k;
857		939
858	i = ++SCHEME_V->last_cell_seg;	940	i = ++SCHEME_V->last_cell_seg;
859	SCHEME_V->alloc_seg[i] = cp;	941	SCHEME_V->alloc_seg[i] = cp;
860		942
861	/* insert new segment in address order */
862	newp = (pointer)cp;	943	newp = (pointer)cp;
863	SCHEME_V->cell_seg[i] = newp;	944	SCHEME_V->cell_seg[i] = newp;
864	SCHEME_V->cell_segsize[i] = segsize;	945	SCHEME_V->cell_segsize[i] = segsize;
865
866	//TODO: insert, not swap
867	while (i > 0 && SCHEME_V->cell_seg[i - 1] > SCHEME_V->cell_seg[i])
868	{
869	p = SCHEME_V->cell_seg[i];
870	SCHEME_V->cell_seg[i] = SCHEME_V->cell_seg[i - 1];
871	SCHEME_V->cell_seg[i - 1] = p;
872
873	k = SCHEME_V->cell_segsize[i];
874	SCHEME_V->cell_segsize[i] = SCHEME_V->cell_segsize[i - 1];
875	SCHEME_V->cell_segsize[i - 1] = k;
876
877	--i;
878	}
879
880	SCHEME_V->fcells += segsize;	946	SCHEME_V->fcells += segsize;
881	last = newp + segsize - 1;	947	last = newp + segsize - 1;
882		948
883	for (p = newp; p <= last; p++)	949	for (p = newp; p <= last; p++)
884	{	950	{
885	set_typeflag (p, T_FREE);	951	set_typeflag (p, T_PAIR);
886	set_car (p, NIL);	952	set_car (p, NIL);
887	set_cdr (p, p + 1);	953	set_cdr (p, p + 1);
888	}	954	}
889		955
890	/* insert new cells in address order on free list */
891	if (SCHEME_V->free_cell == NIL || p < SCHEME_V->free_cell)
892	{
893	set_cdr (last, SCHEME_V->free_cell);	956	set_cdr (last, SCHEME_V->free_cell);
894	SCHEME_V->free_cell = newp;	957	SCHEME_V->free_cell = newp;
895	}
896	else
897	{
898	p = SCHEME_V->free_cell;
899
900	while (cdr (p) != NIL && newp > cdr (p))
901	p = cdr (p);
902
903	set_cdr (last, cdr (p));
904	set_cdr (p, newp);
905	}
906	}	958	}
907		959
908	return n;	960	return n;
909	}	961	}
910		962
…		…
989	/* Record it as a vector so that gc understands it. */	1041	/* Record it as a vector so that gc understands it. */
990	set_typeflag (v, T_VECTOR | T_ATOM);	1042	set_typeflag (v, T_VECTOR | T_ATOM);
991		1043
992	v->object.vector.vvalue = e;	1044	v->object.vector.vvalue = e;
993	v->object.vector.length = len;	1045	v->object.vector.length = len;
994	fill_vector (v, init);	1046	fill_vector (v, 0, init);
995	push_recent_alloc (SCHEME_A_ v, NIL);	1047	push_recent_alloc (SCHEME_A_ v, NIL);
996		1048
997	return v;	1049	return v;
998	}	1050	}
999		1051
…		…
1042	set_cdr (x, b);	1094	set_cdr (x, b);
1043		1095
1044	return x;	1096	return x;
1045	}	1097	}
1046		1098
		1099	static pointer
		1100	generate_symbol (SCHEME_P_ const char *name)
		1101	{
		1102	pointer x = mk_string (SCHEME_A_ name);
		1103	setimmutable (x);
		1104	set_typeflag (x, T_SYMBOL | T_ATOM);
		1105	return x;
		1106	}
		1107
1047	/* ========== oblist implementation ========== */	1108	/* ========== oblist implementation ========== */
1048		1109
1049	#ifndef USE_OBJECT_LIST	1110	#ifndef USE_OBJECT_LIST
1050		1111
		1112	static int
1051	static int hash_fn (const char *key, int table_size);	1113	hash_fn (const char *key, int table_size)
		1114	{
		1115	const unsigned char *p = key;
		1116	uint32_t hash = 2166136261;
		1117
		1118	while (*p)
		1119	hash = (hash ^ *p++) * 16777619;
		1120
		1121	return hash % table_size;
		1122	}
1052		1123
1053	static pointer	1124	static pointer
1054	oblist_initial_value (SCHEME_P)	1125	oblist_initial_value (SCHEME_P)
1055	{	1126	{
1056	return mk_vector (SCHEME_A_ 461); /* probably should be bigger */	1127	return mk_vector (SCHEME_A_ 461); /* probably should be bigger */
…		…
1058		1129
1059	/* returns the new symbol */	1130	/* returns the new symbol */
1060	static pointer	1131	static pointer
1061	oblist_add_by_name (SCHEME_P_ const char *name)	1132	oblist_add_by_name (SCHEME_P_ const char *name)
1062	{	1133	{
1063	int location;	1134	pointer x = generate_symbol (SCHEME_A_ name);
1064
1065	pointer x = immutable_cons (mk_string (SCHEME_A_ name), NIL);
1066	set_typeflag (x, T_SYMBOL);
1067	setimmutable (car (x));
1068
1069	location = hash_fn (name, veclength (SCHEME_V->oblist));	1135	int location = hash_fn (name, veclength (SCHEME_V->oblist));
1070	set_vector_elem (SCHEME_V->oblist, location, immutable_cons (x, vector_elem (SCHEME_V->oblist, location)));	1136	vector_set (SCHEME_V->oblist, location, immutable_cons (x, vector_get (SCHEME_V->oblist, location)));
1071	return x;	1137	return x;
1072	}	1138	}
1073		1139
1074	ecb_inline pointer	1140	ecb_inline pointer
1075	oblist_find_by_name (SCHEME_P_ const char *name)	1141	oblist_find_by_name (SCHEME_P_ const char *name)
…		…
1078	pointer x;	1144	pointer x;
1079	char *s;	1145	char *s;
1080		1146
1081	location = hash_fn (name, veclength (SCHEME_V->oblist));	1147	location = hash_fn (name, veclength (SCHEME_V->oblist));
1082		1148
1083	for (x = vector_elem (SCHEME_V->oblist, location); x != NIL; x = cdr (x))	1149	for (x = vector_get (SCHEME_V->oblist, location); x != NIL; x = cdr (x))
1084	{	1150	{
1085	s = symname (car (x));	1151	s = symname (car (x));
1086		1152
1087	/* case-insensitive, per R5RS section 2 */	1153	/* case-insensitive, per R5RS section 2 */
1088	if (stricmp (name, s) == 0)	1154	if (stricmp (name, s) == 0)
…		…
1098	int i;	1164	int i;
1099	pointer x;	1165	pointer x;
1100	pointer ob_list = NIL;	1166	pointer ob_list = NIL;
1101		1167
1102	for (i = 0; i < veclength (SCHEME_V->oblist); i++)	1168	for (i = 0; i < veclength (SCHEME_V->oblist); i++)
1103	for (x = vector_elem (SCHEME_V->oblist, i); x != NIL; x = cdr (x))	1169	for (x = vector_get (SCHEME_V->oblist, i); x != NIL; x = cdr (x))
1104	ob_list = cons (x, ob_list);	1170	ob_list = cons (x, ob_list);
1105		1171
1106	return ob_list;	1172	return ob_list;
1107	}	1173	}
1108		1174
…		…
1134		1200
1135	/* returns the new symbol */	1201	/* returns the new symbol */
1136	static pointer	1202	static pointer
1137	oblist_add_by_name (SCHEME_P_ const char *name)	1203	oblist_add_by_name (SCHEME_P_ const char *name)
1138	{	1204	{
1139	pointer x;	1205	pointer x = mk_string (SCHEME_A_ name);
1140
1141	x = immutable_cons (mk_string (SCHEME_A_ name), NIL);
1142	set_typeflag (x, T_SYMBOL);	1206	set_typeflag (x, T_SYMBOL);
1143	setimmutable (car (x));	1207	setimmutable (x);
1144	SCHEME_V->oblist = immutable_cons (x, SCHEME_V->oblist);	1208	SCHEME_V->oblist = immutable_cons (x, SCHEME_V->oblist);
1145	return x;	1209	return x;
1146	}	1210	}
1147		1211
1148	static pointer	1212	static pointer
…		…
1181	mk_character (SCHEME_P_ int c)	1245	mk_character (SCHEME_P_ int c)
1182	{	1246	{
1183	pointer x = get_cell (SCHEME_A_ NIL, NIL);	1247	pointer x = get_cell (SCHEME_A_ NIL, NIL);
1184		1248
1185	set_typeflag (x, (T_CHARACTER | T_ATOM));	1249	set_typeflag (x, (T_CHARACTER | T_ATOM));
1186	ivalue_unchecked (x) = c & 0xff;	1250	set_ivalue (x, c & 0xff);
1187	set_num_integer (x);	1251
1188	return x;	1252	return x;
1189	}	1253	}
1190		1254
1191	/* get number atom (integer) */	1255	/* get number atom (integer) */
1192	INTERFACE pointer	1256	INTERFACE pointer
1193	mk_integer (SCHEME_P_ long num)	1257	mk_integer (SCHEME_P_ long n)
1194	{	1258	{
1195	pointer x = get_cell (SCHEME_A_ NIL, NIL);	1259	pointer x = get_cell (SCHEME_A_ NIL, NIL);
1196		1260
1197	set_typeflag (x, (T_NUMBER | T_ATOM));	1261	set_typeflag (x, (T_INTEGER | T_ATOM));
1198	ivalue_unchecked (x) = num;	1262	set_ivalue (x, n);
1199	set_num_integer (x);	1263
1200	return x;	1264	return x;
1201	}	1265	}
1202		1266
1203	INTERFACE pointer	1267	INTERFACE pointer
1204	mk_real (SCHEME_P_ RVALUE n)	1268	mk_real (SCHEME_P_ RVALUE n)
1205	{	1269	{
		1270	#if USE_REAL
1206	pointer x = get_cell (SCHEME_A_ NIL, NIL);	1271	pointer x = get_cell (SCHEME_A_ NIL, NIL);
1207		1272
1208	set_typeflag (x, (T_NUMBER | T_ATOM));	1273	set_typeflag (x, (T_REAL | T_ATOM));
1209	rvalue_unchecked (x) = n;	1274	set_rvalue (x, n);
1210	set_num_real (x);	1275
1211	return x;	1276	return x;
		1277	#else
		1278	return mk_integer (SCHEME_A_ n);
		1279	#endif
1212	}	1280	}
1213		1281
1214	static pointer	1282	static pointer
1215	mk_number (SCHEME_P_ const num n)	1283	mk_number (SCHEME_P_ const num n)
1216	{	1284	{
		1285	#if USE_REAL
1217	if (num_is_fixnum (n))	1286	return num_is_fixnum (n)
		1287	? mk_integer (SCHEME_A_ num_ivalue (n))
		1288	: mk_real (SCHEME_A_ num_rvalue (n));
		1289	#else
1218	return mk_integer (SCHEME_A_ num_get_ivalue (n));	1290	return mk_integer (SCHEME_A_ num_ivalue (n));
1219	else	1291	#endif
1220	return mk_real (SCHEME_A_ num_get_rvalue (n));
1221	}	1292	}
1222		1293
1223	/* allocate name to string area */	1294	/* allocate name to string area */
1224	static char *	1295	static char *
1225	store_string (SCHEME_P_ uint32_t len_str, const char *str, char fill)	1296	store_string (SCHEME_P_ uint32_t len_str, const char *str, char fill)
…		…
1231	SCHEME_V->no_memory = 1;	1302	SCHEME_V->no_memory = 1;
1232	return SCHEME_V->strbuff;	1303	return SCHEME_V->strbuff;
1233	}	1304	}
1234		1305
1235	if (str)	1306	if (str)
1236	{	1307	memcpy (q, str , len_str); /* caller must ensure that *str has length len_str */
1237	int l = strlen (str);
1238
1239	if (l > len_str)
1240	l = len_str;
1241
1242	memcpy (q, str, l);
1243	q[l] = 0;
1244	}
1245	else	1308	else
1246	{
1247	memset (q, fill, len_str);	1309	memset (q, fill, len_str);
		1310
1248	q[len_str] = 0;	1311	q[len_str] = 0;
1249	}
1250		1312
1251	return q;	1313	return q;
1252	}	1314	}
1253		1315
1254	INTERFACE pointer	1316	INTERFACE pointer
…		…
1268	pointer x = get_cell (SCHEME_A_ NIL, NIL);	1330	pointer x = get_cell (SCHEME_A_ NIL, NIL);
1269		1331
1270	set_typeflag (x, T_STRING | T_ATOM);	1332	set_typeflag (x, T_STRING | T_ATOM);
1271	strvalue (x) = store_string (SCHEME_A_ len, str, 0);	1333	strvalue (x) = store_string (SCHEME_A_ len, str, 0);
1272	strlength (x) = len;	1334	strlength (x) = len;
		1335
1273	return x;	1336	return x;
1274	}	1337	}
1275		1338
1276	INTERFACE pointer	1339	INTERFACE pointer
1277	mk_string (SCHEME_P_ const char *str)	1340	mk_string (SCHEME_P_ const char *str)
…		…
1284	{	1347	{
1285	return get_vector_object (SCHEME_A_ len, NIL);	1348	return get_vector_object (SCHEME_A_ len, NIL);
1286	}	1349	}
1287		1350
1288	INTERFACE void	1351	INTERFACE void
1289	fill_vector (pointer vec, pointer obj)	1352	fill_vector (pointer vec, uint32_t start, pointer obj)
1290	{	1353	{
1291	int i;	1354	int i;
1292		1355
1293	for (i = 0; i < vec->object.vector.length; i++)	1356	for (i = start; i < veclength (vec); i++)
1294	vecvalue (vec)[i] = obj;	1357	vecvalue (vec)[i] = obj;
1295	}	1358	}
1296		1359
		1360	INTERFACE void
		1361	vector_resize (pointer vec, uint32_t newsize, pointer fill)
		1362	{
		1363	uint32_t oldsize = veclength (vec);
		1364	vecvalue (vec) = realloc (vecvalue (vec), newsize * sizeof (pointer));
		1365	veclength (vec) = newsize;
		1366	fill_vector (vec, oldsize, fill);
		1367	}
		1368
1297	INTERFACE pointer	1369	INTERFACE pointer
1298	vector_elem (pointer vec, uint32_t ielem)	1370	vector_get (pointer vec, uint32_t ielem)
1299	{	1371	{
1300	return vecvalue(vec)[ielem];	1372	return vecvalue(vec)[ielem];
1301	}	1373	}
1302		1374
1303	INTERFACE void	1375	INTERFACE void
1304	set_vector_elem (pointer vec, uint32_t ielem, pointer a)	1376	vector_set (pointer vec, uint32_t ielem, pointer a)
1305	{	1377	{
1306	vecvalue(vec)[ielem] = a;	1378	vecvalue(vec)[ielem] = a;
1307	}	1379	}
1308		1380
1309	/* get new symbol */	1381	/* get new symbol */
…		…
1321		1393
1322	INTERFACE pointer	1394	INTERFACE pointer
1323	gensym (SCHEME_P)	1395	gensym (SCHEME_P)
1324	{	1396	{
1325	pointer x;	1397	pointer x;
1326
1327	for (; SCHEME_V->gensym_cnt < LONG_MAX; SCHEME_V->gensym_cnt++)
1328	{
1329	char name[40] = "gensym-";	1398	char name[40] = "gensym-";
1330	xnum (name + 7, SCHEME_V->gensym_cnt);	1399	xnum (name + 7, ++SCHEME_V->gensym_cnt);
1331		1400
1332	/* first check oblist */	1401	return generate_symbol (SCHEME_A_ name);
1333	x = oblist_find_by_name (SCHEME_A_ name);	1402	}
1334		1403
1335	if (x == NIL)	1404	static int
1336	{	1405	is_gensym (SCHEME_P_ pointer x)
1337	x = oblist_add_by_name (SCHEME_A_ name);	1406	{
1338	return x;	1407	return is_symbol (x) && oblist_find_by_name (SCHEME_A_ strvalue (x)) != x;
1339	}
1340	}
1341
1342	return NIL;
1343	}	1408	}
1344		1409
1345	/* make symbol or number atom from string */	1410	/* make symbol or number atom from string */
1346	static pointer	1411	static pointer
1347	mk_atom (SCHEME_P_ char *q)	1412	mk_atom (SCHEME_P_ char *q)
…		…
1401	}	1466	}
1402	else if ((c == 'e') || (c == 'E'))	1467	else if ((c == 'e') || (c == 'E'))
1403	{	1468	{
1404	if (!has_fp_exp)	1469	if (!has_fp_exp)
1405	{	1470	{
1406	has_dec_point = 1; /* decimal point illegal	1471	has_dec_point = 1; /* decimal point illegal from now on */
1407	from now on */
1408	p++;	1472	p++;
1409		1473
1410	if ((*p == '-') || (*p == '+') || isdigit (*p))	1474	if ((*p == '-') || (*p == '+') || isdigit (*p))
1411	continue;	1475	continue;
1412	}	1476	}
…		…
1500		1564
1501	if (ecb_expect_false (is_vector (p)))	1565	if (ecb_expect_false (is_vector (p)))
1502	{	1566	{
1503	int i;	1567	int i;
1504		1568
1505	for (i = 0; i < p->object.vector.length; i++)	1569	for (i = 0; i < veclength (p); i++)
1506	mark (vecvalue (p)[i]);	1570	mark (vecvalue (p)[i]);
1507	}	1571	}
1508		1572
1509	if (is_atom (p))	1573	if (is_atom (p))
1510	goto E6;	1574	goto E6;
…		…
1592	/* garbage collect */	1656	/* garbage collect */
1593	clrmark (NIL);	1657	clrmark (NIL);
1594	SCHEME_V->fcells = 0;	1658	SCHEME_V->fcells = 0;
1595	SCHEME_V->free_cell = NIL;	1659	SCHEME_V->free_cell = NIL;
1596		1660
1597	/* free-list is kept sorted by address so as to maintain consecutive	1661	uint32_t total = 0;
1598	ranges, if possible, for use with vectors. Here we scan the cells	1662
1599	(which are also kept sorted by address) downwards to build the	1663	/* Here we scan the cells to build the free-list. */
1600	free-list in sorted order.
1601	*/
1602	for (i = SCHEME_V->last_cell_seg; i >= 0; i--)	1664	for (i = SCHEME_V->last_cell_seg; i >= 0; i--)
1603	{	1665	{
1604	p = SCHEME_V->cell_seg[i] + SCHEME_V->cell_segsize [i];	1666	pointer end = SCHEME_V->cell_seg[i] + SCHEME_V->cell_segsize [i];
		1667	total += SCHEME_V->cell_segsize [i];
1605		1668
1606	while (--p >= SCHEME_V->cell_seg[i])	1669	for (p = SCHEME_V->cell_seg[i]; p < end; ++p)
1607	{	1670	{
1608	if (is_mark (p))	1671	if (is_mark (p))
1609	clrmark (p);	1672	clrmark (p);
1610	else	1673	else
1611	{	1674	{
1612	/* reclaim cell */	1675	/* reclaim cell */
1613	if (typeflag (p) != T_FREE)	1676	if (typeflag (p) != T_PAIR)
1614	{	1677	{
1615	finalize_cell (SCHEME_A_ p);	1678	finalize_cell (SCHEME_A_ p);
1616	set_typeflag (p, T_FREE);	1679	set_typeflag (p, T_PAIR);
1617	set_car (p, NIL);	1680	set_car (p, NIL);
1618	}	1681	}
1619		1682
1620	++SCHEME_V->fcells;	1683	++SCHEME_V->fcells;
1621	set_cdr (p, SCHEME_V->free_cell);	1684	set_cdr (p, SCHEME_V->free_cell);
…		…
1623	}	1686	}
1624	}	1687	}
1625	}	1688	}
1626		1689
1627	if (SCHEME_V->gc_verbose)	1690	if (SCHEME_V->gc_verbose)
		1691	{
1628	xwrstr ("done: "); xwrnum (SCHEME_V->fcells); xwrstr (" cells were recovered.\n");	1692	xwrstr ("done: "); xwrnum (SCHEME_V->fcells); xwrstr (" out of "); xwrnum (total); xwrstr (" cells were recovered.\n");
		1693	}
1629	}	1694	}
1630		1695
1631	static void	1696	static void
1632	finalize_cell (SCHEME_P_ pointer a)	1697	finalize_cell (SCHEME_P_ pointer a)
1633	{	1698	{
1634	/* TODO, fast bitmap check? */	1699	/* TODO, fast bitmap check? */
1635	if (is_string (a))	1700	if (is_string (a) || is_symbol (a))
1636	free (strvalue (a));	1701	free (strvalue (a));
1637	else if (is_vector (a))	1702	else if (is_vector (a))
1638	free (vecvalue (a));	1703	free (vecvalue (a));
1639	#if USE_PORTS	1704	#if USE_PORTS
1640	else if (is_port (a))	1705	else if (is_port (a))
…		…
2062	#endif	2127	#endif
2063	}	2128	}
2064		2129
2065	/* read characters up to delimiter, but cater to character constants */	2130	/* read characters up to delimiter, but cater to character constants */
2066	static char *	2131	static char *
2067	readstr_upto (SCHEME_P_ char *delim)	2132	readstr_upto (SCHEME_P_ int skip, const char *delim)
2068	{	2133	{
2069	char *p = SCHEME_V->strbuff;	2134	char *p = SCHEME_V->strbuff + skip;
2070		2135
2071	while ((p - SCHEME_V->strbuff < sizeof (SCHEME_V->strbuff)) && !is_one_of (delim, (*p++ = inchar (SCHEME_A))));	2136	while ((p - SCHEME_V->strbuff < sizeof (SCHEME_V->strbuff)) && !is_one_of (delim, (*p++ = inchar (SCHEME_A))));
2072		2137
2073	if (p == SCHEME_V->strbuff + 2 && p[-2] == '\\')	2138	if (p == SCHEME_V->strbuff + 2 && p[-2] == '\\')
2074	*p = 0;	2139	*p = 0;
…		…
2081	return SCHEME_V->strbuff;	2146	return SCHEME_V->strbuff;
2082	}	2147	}
2083		2148
2084	/* read string expression "xxx...xxx" */	2149	/* read string expression "xxx...xxx" */
2085	static pointer	2150	static pointer
2086	readstrexp (SCHEME_P)	2151	readstrexp (SCHEME_P_ char delim)
2087	{	2152	{
2088	char *p = SCHEME_V->strbuff;	2153	char *p = SCHEME_V->strbuff;
2089	int c;	2154	int c;
2090	int c1 = 0;	2155	int c1 = 0;
2091	enum
2092	{ st_ok, st_bsl, st_x1, st_x2, st_oct1, st_oct2 } state = st_ok;	2156	enum { st_ok, st_bsl, st_x1, st_x2, st_oct1, st_oct2 } state = st_ok;
2093		2157
2094	for (;;)	2158	for (;;)
2095	{	2159	{
2096	c = inchar (SCHEME_A);	2160	c = inchar (SCHEME_A);
2097		2161
…		…
2099	return S_F;	2163	return S_F;
2100		2164
2101	switch (state)	2165	switch (state)
2102	{	2166	{
2103	case st_ok:	2167	case st_ok:
2104	switch (c)	2168	if (ecb_expect_false (c == delim))
2105	{
2106	case '\\':
2107	state = st_bsl;
2108	break;
2109
2110	case '"':
2111	*p = 0;
2112	return mk_counted_string (SCHEME_A_ SCHEME_V->strbuff, p - SCHEME_V->strbuff);	2169	return mk_counted_string (SCHEME_A_ SCHEME_V->strbuff, p - SCHEME_V->strbuff);
2113		2170
2114	default:	2171	if (ecb_expect_false (c == '\\'))
		2172	state = st_bsl;
		2173	else
2115	*p++ = c;	2174	*p++ = c;
2116	break;
2117	}
2118		2175
2119	break;	2176	break;
2120		2177
2121	case st_bsl:	2178	case st_bsl:
2122	switch (c)	2179	switch (c)
…		…
2152	case 'r':	2209	case 'r':
2153	*p++ = '\r';	2210	*p++ = '\r';
2154	state = st_ok;	2211	state = st_ok;
2155	break;	2212	break;
2156		2213
2157	case '"':
2158	*p++ = '"';
2159	state = st_ok;
2160	break;
2161
2162	default:	2214	default:
2163	*p++ = c;	2215	*p++ = c;
2164	state = st_ok;	2216	state = st_ok;
2165	break;	2217	break;
2166	}	2218	}
2167		2219
2168	break;	2220	break;
2169		2221
2170	case st_x1:	2222	case st_x1:
2171	case st_x2:	2223	case st_x2:
2172	c = toupper (c);	2224	c = tolower (c);
2173		2225
2174	if (c >= '0' && c <= 'F')	2226	if (c >= '0' && c <= '9')
2175	{
2176	if (c <= '9')
2177	c1 = (c1 << 4) + c - '0';	2227	c1 = (c1 << 4) + c - '0';
2178	else	2228	else if (c >= 'a' && c <= 'f')
2179	c1 = (c1 << 4) + c - 'A' + 10;	2229	c1 = (c1 << 4) + c - 'a' + 10;
2180
2181	if (state == st_x1)
2182	state = st_x2;
2183	else
2184	{
2185	*p++ = c1;
2186	state = st_ok;
2187	}
2188	}
2189	else	2230	else
2190	return S_F;	2231	return S_F;
		2232
		2233	if (state == st_x1)
		2234	state = st_x2;
		2235	else
		2236	{
		2237	*p++ = c1;
		2238	state = st_ok;
		2239	}
2191		2240
2192	break;	2241	break;
2193		2242
2194	case st_oct1:	2243	case st_oct1:
2195	case st_oct2:	2244	case st_oct2:
…		…
2199	backchar (SCHEME_A_ c);	2248	backchar (SCHEME_A_ c);
2200	state = st_ok;	2249	state = st_ok;
2201	}	2250	}
2202	else	2251	else
2203	{	2252	{
2204	if (state == st_oct2 && c1 >= 32)	2253	if (state == st_oct2 && c1 >= ' ')
2205	return S_F;	2254	return S_F;
2206		2255
2207	c1 = (c1 << 3) + (c - '0');	2256	c1 = (c1 << 3) + (c - '0');
2208		2257
2209	if (state == st_oct1)	2258	if (state == st_oct1)
…		…
2214	state = st_ok;	2263	state = st_ok;
2215	}	2264	}
2216	}	2265	}
2217		2266
2218	break;	2267	break;
2219
2220	}	2268	}
2221	}	2269	}
2222	}	2270	}
2223		2271
2224	/* check c is in chars */	2272	/* check c is in chars */
2225	ecb_inline int	2273	ecb_inline int
2226	is_one_of (char *s, int c)	2274	is_one_of (const char *s, int c)
2227	{	2275	{
2228	if (c == EOF)
2229	return 1;
2230
2231	return !!strchr (s, c);	2276	return c == EOF || !!strchr (s, c);
2232	}	2277	}
2233		2278
2234	/* skip white characters */	2279	/* skip white characters */
2235	ecb_inline int	2280	ecb_inline int
2236	skipspace (SCHEME_P)	2281	skipspace (SCHEME_P)
…		…
2238	int c, curr_line = 0;	2283	int c, curr_line = 0;
2239		2284
2240	do	2285	do
2241	{	2286	{
2242	c = inchar (SCHEME_A);	2287	c = inchar (SCHEME_A);
		2288
2243	#if SHOW_ERROR_LINE	2289	#if SHOW_ERROR_LINE
2244	if (c == '\n')	2290	if (ecb_expect_false (c == '\n'))
2245	curr_line++;	2291	curr_line++;
2246	#endif	2292	#endif
		2293
		2294	if (ecb_expect_false (c == EOF))
		2295	return c;
2247	}	2296	}
2248	while (c == ' ' || c == '\n' || c == '\r' || c == '\t');	2297	while (is_one_of (WHITESPACE, c));
2249		2298
2250	/* record it */	2299	/* record it */
2251	#if SHOW_ERROR_LINE	2300	#if SHOW_ERROR_LINE
2252	if (SCHEME_V->load_stack[SCHEME_V->file_i].kind & port_file)	2301	if (SCHEME_V->load_stack[SCHEME_V->file_i].kind & port_file)
2253	SCHEME_V->load_stack[SCHEME_V->file_i].rep.stdio.curr_line += curr_line;	2302	SCHEME_V->load_stack[SCHEME_V->file_i].rep.stdio.curr_line += curr_line;
2254	#endif	2303	#endif
2255		2304
2256	if (c != EOF)
2257	{
2258	backchar (SCHEME_A_ c);	2305	backchar (SCHEME_A_ c);
2259	return 1;	2306	return 1;
2260	}
2261	else
2262	return EOF;
2263	}	2307	}
2264		2308
2265	/* get token */	2309	/* get token */
2266	static int	2310	static int
2267	token (SCHEME_P)	2311	token (SCHEME_P)
…		…
2283	return TOK_RPAREN;	2327	return TOK_RPAREN;
2284		2328
2285	case '.':	2329	case '.':
2286	c = inchar (SCHEME_A);	2330	c = inchar (SCHEME_A);
2287		2331
2288	if (is_one_of (" \n\t", c))	2332	if (is_one_of (WHITESPACE, c))
2289	return TOK_DOT;	2333	return TOK_DOT;
2290	else	2334	else
2291	{	2335	{
2292	//TODO: ungetc twice in a row is not supported in C
2293	backchar (SCHEME_A_ c);	2336	backchar (SCHEME_A_ c);
2294	backchar (SCHEME_A_ '.');
2295	return TOK_ATOM;	2337	return TOK_DOTATOM;
2296	}	2338	}
		2339
		2340	case '|':
		2341	return TOK_STRATOM;
2297		2342
2298	case '\'':	2343	case '\'':
2299	return TOK_QUOTE;	2344	return TOK_QUOTE;
2300		2345
2301	case ';':	2346	case ';':
…		…
2433	}	2478	}
2434		2479
2435	putcharacter (SCHEME_A_ '"');	2480	putcharacter (SCHEME_A_ '"');
2436	}	2481	}
2437		2482
2438
2439	/* print atoms */	2483	/* print atoms */
2440	static void	2484	static void
2441	printatom (SCHEME_P_ pointer l, int f)	2485	printatom (SCHEME_P_ pointer l, int f)
2442	{	2486	{
2443	char *p;	2487	char *p;
2444	int len;	2488	int len;
2445		2489
2446	atom2str (SCHEME_A_ l, f, &p, &len);	2490	atom2str (SCHEME_A_ l, f, &p, &len);
2447	putchars (SCHEME_A_ p, len);	2491	putchars (SCHEME_A_ p, len);
2448	}	2492	}
2449
2450		2493
2451	/* Uses internal buffer unless string pointer is already available */	2494	/* Uses internal buffer unless string pointer is already available */
2452	static void	2495	static void
2453	atom2str (SCHEME_P_ pointer l, int f, char **pp, int *plen)	2496	atom2str (SCHEME_P_ pointer l, int f, char **pp, int *plen)
2454	{	2497	{
…		…
2615	#endif	2658	#endif
2616	}	2659	}
2617	else if (is_continuation (l))	2660	else if (is_continuation (l))
2618	p = "#<CONTINUATION>";	2661	p = "#<CONTINUATION>";
2619	else	2662	else
		2663	{
		2664	#if USE_PRINTF
		2665	p = SCHEME_V->strbuff;
		2666	snprintf (p, STRBUFFSIZE, "#<ERROR %x>", (int)typeflag (l));
		2667	#else
2620	p = "#<ERROR>";	2668	p = "#<ERROR>";
		2669	#endif
		2670	}
2621		2671
2622	*pp = p;	2672	*pp = p;
2623	*plen = strlen (p);	2673	*plen = strlen (p);
2624	}	2674	}
2625		2675
…		…
2769	/* () is #t in R5RS */	2819	/* () is #t in R5RS */
2770	#define is_true(p) ((p) != S_F)	2820	#define is_true(p) ((p) != S_F)
2771	#define is_false(p) ((p) == S_F)	2821	#define is_false(p) ((p) == S_F)
2772		2822
2773	/* ========== Environment implementation ========== */	2823	/* ========== Environment implementation ========== */
2774
2775	#if !defined(USE_ALIST_ENV) || !defined(USE_OBJECT_LIST)
2776
2777	static int
2778	hash_fn (const char *key, int table_size)
2779	{
2780	const unsigned char *p = key;
2781	uint32_t hash = 2166136261;
2782
2783	while (*p)
2784	hash = (hash ^ *p++) * 16777619;
2785
2786	return hash % table_size;
2787	}
2788	#endif
2789		2824
2790	#ifndef USE_ALIST_ENV	2825	#ifndef USE_ALIST_ENV
2791		2826
2792	/*	2827	/*
2793	* In this implementation, each frame of the environment may be	2828	* In this implementation, each frame of the environment may be
…		…
2810		2845
2811	SCHEME_V->envir = immutable_cons (new_frame, old_env);	2846	SCHEME_V->envir = immutable_cons (new_frame, old_env);
2812	setenvironment (SCHEME_V->envir);	2847	setenvironment (SCHEME_V->envir);
2813	}	2848	}
2814		2849
		2850	static uint32_t
		2851	sym_hash (pointer sym, uint32_t size)
		2852	{
		2853	uintptr_t ptr = (uintptr_t)sym;
		2854
		2855	#if 0
		2856	/* table size is prime, so why mix */
		2857	ptr += ptr >> 32;
		2858	ptr += ptr >> 16;
		2859	ptr += ptr >> 8;
		2860	#endif
		2861
		2862	return ptr % size;
		2863	}
		2864
2815	ecb_inline void	2865	ecb_inline void
2816	new_slot_spec_in_env (SCHEME_P_ pointer env, pointer variable, pointer value)	2866	new_slot_spec_in_env (SCHEME_P_ pointer env, pointer variable, pointer value)
2817	{	2867	{
2818	pointer slot = immutable_cons (variable, value);	2868	pointer slot = immutable_cons (variable, value);
2819		2869
2820	if (is_vector (car (env)))	2870	if (is_vector (car (env)))
2821	{	2871	{
2822	int location = hash_fn (symname (variable), veclength (car (env)));	2872	int location = sym_hash (variable, veclength (car (env)));
2823
2824	set_vector_elem (car (env), location, immutable_cons (slot, vector_elem (car (env), location)));	2873	vector_set (car (env), location, immutable_cons (slot, vector_get (car (env), location)));
2825	}	2874	}
2826	else	2875	else
2827	set_car (env, immutable_cons (slot, car (env)));	2876	set_car (env, immutable_cons (slot, car (env)));
2828	}	2877	}
2829		2878
2830	static pointer	2879	static pointer
2831	find_slot_in_env (SCHEME_P_ pointer env, pointer hdl, int all)	2880	find_slot_in_env (SCHEME_P_ pointer env, pointer hdl, int all)
2832	{	2881	{
2833	pointer x, y;	2882	pointer x, y;
2834	int location;
2835		2883
2836	for (x = env; x != NIL; x = cdr (x))	2884	for (x = env; x != NIL; x = cdr (x))
2837	{	2885	{
2838	if (is_vector (car (x)))	2886	if (is_vector (car (x)))
2839	{	2887	{
2840	location = hash_fn (symname (hdl), veclength (car (x)));	2888	int location = sym_hash (hdl, veclength (car (x)));
2841	y = vector_elem (car (x), location);	2889	y = vector_get (car (x), location);
2842	}	2890	}
2843	else	2891	else
2844	y = car (x);	2892	y = car (x);
2845		2893
2846	for (; y != NIL; y = cdr (y))	2894	for (; y != NIL; y = cdr (y))
2847	if (caar (y) == hdl)	2895	if (caar (y) == hdl)
2848	break;	2896	break;
2849		2897
2850	if (y != NIL)	2898	if (y != NIL)
		2899	return car (y);
		2900
		2901	if (!all)
2851	break;	2902	break;
2852
2853	if (!all)
2854	return NIL;
2855	}	2903	}
2856
2857	if (x != NIL)
2858	return car (y);
2859		2904
2860	return NIL;	2905	return NIL;
2861	}	2906	}
2862		2907
2863	#else /* USE_ALIST_ENV */	2908	#else /* USE_ALIST_ENV */
…		…
2885	for (y = car (x); y != NIL; y = cdr (y))	2930	for (y = car (x); y != NIL; y = cdr (y))
2886	if (caar (y) == hdl)	2931	if (caar (y) == hdl)
2887	break;	2932	break;
2888		2933
2889	if (y != NIL)	2934	if (y != NIL)
		2935	return car (y);
2890	break;	2936	break;
2891		2937
2892	if (!all)	2938	if (!all)
2893	return NIL;	2939	break;
2894	}	2940	}
2895
2896	if (x != NIL)
2897	return car (y);
2898		2941
2899	return NIL;	2942	return NIL;
2900	}	2943	}
2901		2944
2902	#endif /* USE_ALIST_ENV else */	2945	#endif /* USE_ALIST_ENV else */
2903		2946
2904	ecb_inline void	2947	ecb_inline void
2905	new_slot_in_env (SCHEME_P_ pointer variable, pointer value)	2948	new_slot_in_env (SCHEME_P_ pointer variable, pointer value)
2906	{	2949	{
		2950	assert (is_symbol (variable));//TODO: bug in current-ws/OP_LET2
2907	new_slot_spec_in_env (SCHEME_A_ SCHEME_V->envir, variable, value);	2951	new_slot_spec_in_env (SCHEME_A_ SCHEME_V->envir, variable, value);
2908	}	2952	}
2909		2953
2910	ecb_inline void	2954	ecb_inline void
2911	set_slot_in_env (SCHEME_P_ pointer slot, pointer value)	2955	set_slot_in_env (SCHEME_P_ pointer slot, pointer value)
…		…
3119	int i = 0;	3163	int i = 0;
3120	struct dump_stack_frame *frame = SCHEME_V->dump_base;	3164	struct dump_stack_frame *frame = SCHEME_V->dump_base;
3121		3165
3122	while (cont != NIL)	3166	while (cont != NIL)
3123	{	3167	{
3124	frame->op = ivalue (car (cont)); cont = cdr (cont);	3168	frame->op = ivalue_unchecked (car (cont)); cont = cdr (cont);
3125	frame->args = car (cont) ; cont = cdr (cont);	3169	frame->args = car (cont) ; cont = cdr (cont);
3126	frame->envir = car (cont) ; cont = cdr (cont);	3170	frame->envir = car (cont) ; cont = cdr (cont);
3127	frame->code = car (cont) ; cont = cdr (cont);	3171	frame->code = car (cont) ; cont = cdr (cont);
3128		3172
3129	++frame;	3173	++frame;
3130	++i;	3174	++i;
3131	}	3175	}
3132		3176
…		…
3161	SCHEME_V->value = a;	3205	SCHEME_V->value = a;
3162		3206
3163	if (dump == NIL)	3207	if (dump == NIL)
3164	return -1;	3208	return -1;
3165		3209
3166	SCHEME_V->op = ivalue (car (dump)); dump = cdr (dump);	3210	SCHEME_V->op = ivalue_unchecked (car (dump)); dump = cdr (dump);
3167	SCHEME_V->args = car (dump) ; dump = cdr (dump);	3211	SCHEME_V->args = car (dump) ; dump = cdr (dump);
3168	SCHEME_V->envir = car (dump) ; dump = cdr (dump);	3212	SCHEME_V->envir = car (dump) ; dump = cdr (dump);
3169	SCHEME_V->code = car (dump) ; dump = cdr (dump);	3213	SCHEME_V->code = car (dump) ; dump = cdr (dump);
3170		3214
3171	SCHEME_V->dump = dump;	3215	SCHEME_V->dump = dump;
3172		3216
3173	return 0;	3217	return 0;
3174	}	3218	}
…		…
3203		3247
3204	#endif	3248	#endif
3205		3249
3206	#define s_retbool(tf) s_return ((tf) ? S_T : S_F)	3250	#define s_retbool(tf) s_return ((tf) ? S_T : S_F)
3207		3251
		3252	#if EXPERIMENT
		3253	static int
		3254	debug (SCHEME_P_ int indent, pointer x)
		3255	{
		3256	int c;
		3257
		3258	if (is_syntax (x))
		3259	{
		3260	printf ("%*ssyntax<%s,%d>\n", indent, "", syntaxname(x),syntaxnum(x));
		3261	return 8 + 8;
		3262	}
		3263
		3264	if (x == NIL)
		3265	{
		3266	printf ("%*sNIL\n", indent, "");
		3267	return 3;
		3268	}
		3269
		3270	switch (type (x))
		3271	{
		3272	case T_INTEGER:
		3273	printf ("%*sI<%d>%p\n", indent, "", (int)ivalue_unchecked (x), x);
		3274	return 32+8;
		3275
		3276	case T_SYMBOL:
		3277	printf ("%*sS<%s>\n", indent, "", symname (x));
		3278	return 24+8;
		3279
		3280	case T_CLOSURE:
		3281	printf ("%*sS<%s>\n", indent, "", "closure");
		3282	debug (SCHEME_A_ indent + 3, cdr(x));
		3283	return 32 + debug (SCHEME_A_ indent + 3, car (x));
		3284
		3285	case T_PAIR:
		3286	printf ("%*spair %p %p\n", indent, "", car(x),cdr(x));
		3287	c = debug (SCHEME_A_ indent + 3, car (x));
		3288	c += debug (SCHEME_A_ indent + 3, cdr (x));
		3289	return c + 1;
		3290
		3291	case T_PORT:
		3292	printf ("%*sS<%s>\n", indent, "", "port");
		3293	return 24+8;
		3294
		3295	case T_VECTOR:
		3296	printf ("%*sS<%s>\n", indent, "", "vector");
		3297	return 24+8;
		3298
		3299	case T_ENVIRONMENT:
		3300	printf ("%*sS<%s>\n", indent, "", "environment");
		3301	return 0 + debug (SCHEME_A_ indent + 3, car (x));
		3302
		3303	default:
		3304	printf ("unhandled type %d\n", type (x));
		3305	break;
		3306	}
		3307	}
		3308	#endif
		3309
3208	static int	3310	static int
3209	opexe_0 (SCHEME_P_ enum scheme_opcodes op)	3311	opexe_0 (SCHEME_P_ enum scheme_opcodes op)
3210	{	3312	{
3211	pointer args = SCHEME_V->args;	3313	pointer args = SCHEME_V->args;
3212	pointer x, y;	3314	pointer x, y;
3213		3315
3214	switch (op)	3316	switch (op)
3215	{	3317	{
		3318	#if EXPERIMENT //D
		3319	case OP_DEBUG:
		3320	printf ("len = %d\n", debug (SCHEME_A_ 0, args) / 8);
		3321	printf ("\n");
		3322	s_return (S_T);
		3323	#endif
3216	case OP_LOAD: /* load */	3324	case OP_LOAD: /* load */
3217	if (file_interactive (SCHEME_A))	3325	if (file_interactive (SCHEME_A))
3218	{	3326	{
3219	xwrstr ("Loading "); xwrstr (strvalue (car (args))); xwrstr ("\n");	3327	xwrstr ("Loading "); xwrstr (strvalue (car (args))); xwrstr ("\n");
3220	//D fprintf (SCHEME_V->outport->object.port->rep.stdio.file, "Loading %s\n", strvalue (car (args)));	3328	//D fprintf (SCHEME_V->outport->object.port->rep.stdio.file, "Loading %s\n", strvalue (car (args)));
…		…
3343	}	3451	}
3344	else	3452	else
3345	s_return (SCHEME_V->code);	3453	s_return (SCHEME_V->code);
3346		3454
3347	case OP_E0ARGS: /* eval arguments */	3455	case OP_E0ARGS: /* eval arguments */
3348	if (is_macro (SCHEME_V->value)) /* macro expansion */	3456	if (ecb_expect_false (is_macro (SCHEME_V->value))) /* macro expansion */
3349	{	3457	{
3350	s_save (SCHEME_A_ OP_DOMACRO, NIL, NIL);	3458	s_save (SCHEME_A_ OP_DOMACRO, NIL, NIL);
3351	SCHEME_V->args = cons (SCHEME_V->code, NIL);	3459	SCHEME_V->args = cons (SCHEME_V->code, NIL);
3352	SCHEME_V->code = SCHEME_V->value;	3460	SCHEME_V->code = SCHEME_V->value;
3353	s_goto (OP_APPLY);	3461	s_goto (OP_APPLY);
…		…
3380		3488
3381	case OP_TRACING:	3489	case OP_TRACING:
3382	{	3490	{
3383	int tr = SCHEME_V->tracing;	3491	int tr = SCHEME_V->tracing;
3384		3492
3385	SCHEME_V->tracing = ivalue (car (args));	3493	SCHEME_V->tracing = ivalue_unchecked (car (args));
3386	s_return (mk_integer (SCHEME_A_ tr));	3494	s_return (mk_integer (SCHEME_A_ tr));
3387	}	3495	}
3388		3496
3389	#endif	3497	#endif
3390		3498
…		…
3909	{	4017	{
3910	pointer args = SCHEME_V->args;	4018	pointer args = SCHEME_V->args;
3911	pointer x = car (args);	4019	pointer x = car (args);
3912	num v;	4020	num v;
3913		4021
3914	#if USE_MATH
3915	RVALUE dd;
3916	#endif
3917
3918	switch (op)	4022	switch (op)
3919	{	4023	{
3920	#if USE_MATH	4024	#if USE_MATH
3921	case OP_INEX2EX: /* inexact->exact */	4025	case OP_INEX2EX: /* inexact->exact */
		4026	{
3922	if (is_integer (x))	4027	if (is_integer (x))
3923	s_return (x);	4028	s_return (x);
3924	else if (modf (rvalue_unchecked (x), &dd) == 0)	4029
		4030	RVALUE r = rvalue_unchecked (x);
		4031
		4032	if (r == (RVALUE)(IVALUE)r)
3925	s_return (mk_integer (SCHEME_A_ ivalue (x)));	4033	s_return (mk_integer (SCHEME_A_ rvalue_unchecked (x)));
3926	else	4034	else
3927	Error_1 ("inexact->exact: not integral:", x);	4035	Error_1 ("inexact->exact: not integral:", x);
		4036	}
3928		4037
3929	case OP_EXP: s_return (mk_real (SCHEME_A_ exp (rvalue (x))));	4038	case OP_EXP: s_return (mk_real (SCHEME_A_ exp (rvalue (x))));
3930	case OP_LOG: s_return (mk_real (SCHEME_A_ log (rvalue (x))));	4039	case OP_LOG: s_return (mk_real (SCHEME_A_ log (rvalue (x))));
3931	case OP_SIN: s_return (mk_real (SCHEME_A_ sin (rvalue (x))));	4040	case OP_SIN: s_return (mk_real (SCHEME_A_ sin (rvalue (x))));
3932	case OP_COS: s_return (mk_real (SCHEME_A_ cos (rvalue (x))));	4041	case OP_COS: s_return (mk_real (SCHEME_A_ cos (rvalue (x))));
…		…
3966	/* If the test fails, result is too big for integer. */	4075	/* If the test fails, result is too big for integer. */
3967	if (!real_result)	4076	if (!real_result)
3968	{	4077	{
3969	long result_as_long = result;	4078	long result_as_long = result;
3970		4079
3971	if (result != (RVALUE) result_as_long)	4080	if (result != result_as_long)
3972	real_result = 1;	4081	real_result = 1;
3973	}	4082	}
3974		4083
3975	if (real_result)	4084	if (real_result)
3976	s_return (mk_real (SCHEME_A_ result));	4085	s_return (mk_real (SCHEME_A_ result));
…		…
3981	case OP_FLOOR: s_return (mk_real (SCHEME_A_ floor (rvalue (x))));	4090	case OP_FLOOR: s_return (mk_real (SCHEME_A_ floor (rvalue (x))));
3982	case OP_CEILING: s_return (mk_real (SCHEME_A_ ceil (rvalue (x))));	4091	case OP_CEILING: s_return (mk_real (SCHEME_A_ ceil (rvalue (x))));
3983		4092
3984	case OP_TRUNCATE:	4093	case OP_TRUNCATE:
3985	{	4094	{
3986	RVALUE rvalue_of_x;	4095	RVALUE n = rvalue (x);
3987
3988	rvalue_of_x = rvalue (x);
3989
3990	if (rvalue_of_x > 0)
3991	s_return (mk_real (SCHEME_A_ floor (rvalue_of_x)));	4096	s_return (mk_real (SCHEME_A_ n > 0 ? floor (n) : ceil (n)));
3992	else
3993	s_return (mk_real (SCHEME_A_ ceil (rvalue_of_x)));
3994	}	4097	}
3995		4098
3996	case OP_ROUND:	4099	case OP_ROUND:
3997	if (num_is_integer (x))	4100	if (is_integer (x))
3998	s_return (x);	4101	s_return (x);
3999		4102
4000	s_return (mk_real (SCHEME_A_ round_per_R5RS (rvalue (x))));	4103	s_return (mk_real (SCHEME_A_ round_per_R5RS (rvalue (x))));
4001	#endif	4104	#endif
4002		4105
…		…
4122	}	4225	}
4123	else	4226	else
4124	Error_0 ("set-cdr!: unable to alter immutable pair");	4227	Error_0 ("set-cdr!: unable to alter immutable pair");
4125		4228
4126	case OP_CHAR2INT: /* char->integer */	4229	case OP_CHAR2INT: /* char->integer */
4127	s_return (mk_integer (SCHEME_A_ ivalue (x)));	4230	s_return (mk_integer (SCHEME_A_ ivalue_unchecked (x)));
4128		4231
4129	case OP_INT2CHAR: /* integer->char */	4232	case OP_INT2CHAR: /* integer->char */
4130	s_return (mk_character (SCHEME_A_ ivalue (x)));	4233	s_return (mk_character (SCHEME_A_ ivalue_unchecked (x)));
4131		4234
4132	case OP_CHARUPCASE:	4235	case OP_CHARUPCASE:
4133	{	4236	{
4134	unsigned char c = ivalue (x);	4237	unsigned char c = ivalue_unchecked (x);
4135	c = toupper (c);	4238	c = toupper (c);
4136	s_return (mk_character (SCHEME_A_ c));	4239	s_return (mk_character (SCHEME_A_ c));
4137	}	4240	}
4138		4241
4139	case OP_CHARDNCASE:	4242	case OP_CHARDNCASE:
4140	{	4243	{
4141	unsigned char c = ivalue (x);	4244	unsigned char c = ivalue_unchecked (x);
4142	c = tolower (c);	4245	c = tolower (c);
4143	s_return (mk_character (SCHEME_A_ c));	4246	s_return (mk_character (SCHEME_A_ c));
4144	}	4247	}
4145		4248
4146	case OP_STR2SYM: /* string->symbol */	4249	case OP_STR2SYM: /* string->symbol */
…		…
4223	Error_1 ("atom->string: not an atom:", x);	4326	Error_1 ("atom->string: not an atom:", x);
4224	}	4327	}
4225		4328
4226	case OP_MKSTRING: /* make-string */	4329	case OP_MKSTRING: /* make-string */
4227	{	4330	{
4228	int fill = ' ';	4331	int fill = cdr (args) != NIL ? charvalue (cadr (args)) : ' ';
4229	int len;
4230
4231	len = ivalue (x);	4332	int len = ivalue_unchecked (x);
4232
4233	if (cdr (args) != NIL)
4234	fill = charvalue (cadr (args));
4235		4333
4236	s_return (mk_empty_string (SCHEME_A_ len, fill));	4334	s_return (mk_empty_string (SCHEME_A_ len, fill));
4237	}	4335	}
4238		4336
4239	case OP_STRLEN: /* string-length */	4337	case OP_STRLEN: /* string-length */
4240	s_return (mk_integer (SCHEME_A_ strlength (x)));	4338	s_return (mk_integer (SCHEME_A_ strlength (x)));
4241		4339
4242	case OP_STRREF: /* string-ref */	4340	case OP_STRREF: /* string-ref */
4243	{	4341	{
4244	char *str;
4245	int index;
4246
4247	str = strvalue (x);	4342	char *str = strvalue (x);
4248
4249	index = ivalue (cadr (args));	4343	int index = ivalue_unchecked (cadr (args));
4250		4344
4251	if (index >= strlength (x))	4345	if (index >= strlength (x))
4252	Error_1 ("string-ref: out of bounds:", cadr (args));	4346	Error_1 ("string-ref: out of bounds:", cadr (args));
4253		4347
4254	s_return (mk_character (SCHEME_A_ ((unsigned char *)str)[index]));	4348	s_return (mk_character (SCHEME_A_ ((unsigned char *)str)[index]));
4255	}	4349	}
4256		4350
4257	case OP_STRSET: /* string-set! */	4351	case OP_STRSET: /* string-set! */
4258	{	4352	{
4259	char *str;	4353	char *str = strvalue (x);
4260	int index;	4354	int index = ivalue_unchecked (cadr (args));
4261	int c;	4355	int c;
4262		4356
4263	if (is_immutable (x))	4357	if (is_immutable (x))
4264	Error_1 ("string-set!: unable to alter immutable string:", x);	4358	Error_1 ("string-set!: unable to alter immutable string:", x);
4265
4266	str = strvalue (x);
4267
4268	index = ivalue (cadr (args));
4269		4359
4270	if (index >= strlength (x))	4360	if (index >= strlength (x))
4271	Error_1 ("string-set!: out of bounds:", cadr (args));	4361	Error_1 ("string-set!: out of bounds:", cadr (args));
4272		4362
4273	c = charvalue (caddr (args));	4363	c = charvalue (caddr (args));
…		…
4296	s_return (newstr);	4386	s_return (newstr);
4297	}	4387	}
4298		4388
4299	case OP_SUBSTR: /* substring */	4389	case OP_SUBSTR: /* substring */
4300	{	4390	{
4301	char *str;	4391	char *str = strvalue (x);
4302	int index0;	4392	int index0 = ivalue_unchecked (cadr (args));
4303	int index1;	4393	int index1;
4304	int len;	4394	int len;
4305		4395
4306	str = strvalue (x);
4307
4308	index0 = ivalue (cadr (args));
4309
4310	if (index0 > strlength (x))	4396	if (index0 > strlength (x))
4311	Error_1 ("substring: start out of bounds:", cadr (args));	4397	Error_1 ("substring: start out of bounds:", cadr (args));
4312		4398
4313	if (cddr (args) != NIL)	4399	if (cddr (args) != NIL)
4314	{	4400	{
4315	index1 = ivalue (caddr (args));	4401	index1 = ivalue_unchecked (caddr (args));
4316		4402
4317	if (index1 > strlength (x) || index1 < index0)	4403	if (index1 > strlength (x) || index1 < index0)
4318	Error_1 ("substring: end out of bounds:", caddr (args));	4404	Error_1 ("substring: end out of bounds:", caddr (args));
4319	}	4405	}
4320	else	4406	else
…		…
4343	if (SCHEME_V->no_memory)	4429	if (SCHEME_V->no_memory)
4344	s_return (S_SINK);	4430	s_return (S_SINK);
4345	#endif	4431	#endif
4346		4432
4347	for (x = args, i = 0; is_pair (x); x = cdr (x), i++)	4433	for (x = args, i = 0; is_pair (x); x = cdr (x), i++)
4348	set_vector_elem (vec, i, car (x));	4434	vector_set (vec, i, car (x));
4349		4435
4350	s_return (vec);	4436	s_return (vec);
4351	}	4437	}
4352		4438
4353	case OP_MKVECTOR: /* make-vector */	4439	case OP_MKVECTOR: /* make-vector */
4354	{	4440	{
4355	pointer fill = NIL;	4441	pointer fill = NIL;
4356	int len;
4357	pointer vec;	4442	pointer vec;
4358
4359	len = ivalue (x);	4443	int len = ivalue_unchecked (x);
4360		4444
4361	if (cdr (args) != NIL)	4445	if (cdr (args) != NIL)
4362	fill = cadr (args);	4446	fill = cadr (args);
4363		4447
4364	vec = mk_vector (SCHEME_A_ len);	4448	vec = mk_vector (SCHEME_A_ len);
…		…
4367	if (SCHEME_V->no_memory)	4451	if (SCHEME_V->no_memory)
4368	s_return (S_SINK);	4452	s_return (S_SINK);
4369	#endif	4453	#endif
4370		4454
4371	if (fill != NIL)	4455	if (fill != NIL)
4372	fill_vector (vec, fill);	4456	fill_vector (vec, 0, fill);
4373		4457
4374	s_return (vec);	4458	s_return (vec);
4375	}	4459	}
4376		4460
4377	case OP_VECLEN: /* vector-length */	4461	case OP_VECLEN: /* vector-length */
4378	s_return (mk_integer (SCHEME_A_ veclength (x)));	4462	s_return (mk_integer (SCHEME_A_ veclength (x)));
4379		4463
		4464	case OP_VECRESIZE:
		4465	vector_resize (x, ivalue_unchecked (cadr (args)), caddr (args));
		4466	s_return (x);
		4467
4380	case OP_VECREF: /* vector-ref */	4468	case OP_VECREF: /* vector-ref */
4381	{	4469	{
4382	int index;
4383
4384	index = ivalue (cadr (args));	4470	int index = ivalue_unchecked (cadr (args));
4385		4471
4386	if (index >= veclength (car (args)) && USE_ERROR_CHECKING)	4472	if (index >= veclength (car (args)) && USE_ERROR_CHECKING)
4387	Error_1 ("vector-ref: out of bounds:", cadr (args));	4473	Error_1 ("vector-ref: out of bounds:", cadr (args));
4388		4474
4389	s_return (vector_elem (x, index));	4475	s_return (vector_get (x, index));
4390	}	4476	}
4391		4477
4392	case OP_VECSET: /* vector-set! */	4478	case OP_VECSET: /* vector-set! */
4393	{	4479	{
4394	int index;	4480	int index = ivalue_unchecked (cadr (args));
4395		4481
4396	if (is_immutable (x))	4482	if (is_immutable (x))
4397	Error_1 ("vector-set!: unable to alter immutable vector:", x);	4483	Error_1 ("vector-set!: unable to alter immutable vector:", x);
4398		4484
4399	index = ivalue (cadr (args));
4400
4401	if (index >= veclength (car (args)) && USE_ERROR_CHECKING)	4485	if (index >= veclength (car (args)) && USE_ERROR_CHECKING)
4402	Error_1 ("vector-set!: out of bounds:", cadr (args));	4486	Error_1 ("vector-set!: out of bounds:", cadr (args));
4403		4487
4404	set_vector_elem (x, index, caddr (args));	4488	vector_set (x, index, caddr (args));
4405	s_return (x);	4489	s_return (x);
4406	}	4490	}
4407	}	4491	}
4408		4492
4409	if (USE_ERROR_CHECKING) abort ();	4493	if (USE_ERROR_CHECKING) abort ();
4410	}
4411
4412	INTERFACE int
4413	is_list (SCHEME_P_ pointer a)
4414	{
4415	return list_length (SCHEME_A_ a) >= 0;
4416	}
4417
4418	/* Result is:
4419	proper list: length
4420	circular list: -1
4421	not even a pair: -2
4422	dotted list: -2 minus length before dot
4423	*/
4424	INTERFACE int
4425	list_length (SCHEME_P_ pointer a)
4426	{
4427	int i = 0;
4428	pointer slow, fast;
4429
4430	slow = fast = a;
4431
4432	while (1)
4433	{
4434	if (fast == NIL)
4435	return i;
4436
4437	if (!is_pair (fast))
4438	return -2 - i;
4439
4440	fast = cdr (fast);
4441	++i;
4442
4443	if (fast == NIL)
4444	return i;
4445
4446	if (!is_pair (fast))
4447	return -2 - i;
4448
4449	++i;
4450	fast = cdr (fast);
4451
4452	/* Safe because we would have already returned if `fast'
4453	encountered a non-pair. */
4454	slow = cdr (slow);
4455
4456	if (fast == slow)
4457	{
4458	/* the fast pointer has looped back around and caught up
4459	with the slow pointer, hence the structure is circular,
4460	not of finite length, and therefore not a list */
4461	return -1;
4462	}
4463	}
4464	}	4494	}
4465		4495
4466	static int	4496	static int
4467	opexe_2 (SCHEME_P_ enum scheme_opcodes op)	4497	opexe_2 (SCHEME_P_ enum scheme_opcodes op)
4468	{	4498	{
…		…
4502	pointer d = cdr (args);	4532	pointer d = cdr (args);
4503	int r;	4533	int r;
4504		4534
4505	switch (op)	4535	switch (op)
4506	{	4536	{
4507	case OP_NOT: /* not */ r = is_false (a) ; break;	4537	case OP_NOT: /* not */ r = is_false (a) ; break;
4508	case OP_BOOLP: /* boolean? */ r = a == S_F || a == S_T; break;	4538	case OP_BOOLP: /* boolean? */ r = a == S_F || a == S_T ; break;
4509	case OP_EOFOBJP: /* eof-object? */ r = a == S_EOF ; break;	4539	case OP_EOFOBJP: /* eof-object? */ r = a == S_EOF ; break;
4510	case OP_NULLP: /* null? */ r = a == NIL ; break;	4540	case OP_NULLP: /* null? */ r = a == NIL ; break;
4511	case OP_SYMBOLP: /* symbol? */ r = is_symbol (a) ; break;	4541	case OP_SYMBOLP: /* symbol? */ r = is_symbol (a) ; break;
		4542	case OP_GENSYMP: /* gensym? */ r = is_gensym (SCHEME_A_ a); break;
4512	case OP_NUMBERP: /* number? */ r = is_number (a) ; break;	4543	case OP_NUMBERP: /* number? */ r = is_number (a) ; break;
4513	case OP_STRINGP: /* string? */ r = is_string (a) ; break;	4544	case OP_STRINGP: /* string? */ r = is_string (a) ; break;
4514	case OP_INTEGERP: /* integer? */ r = is_integer (a) ; break;	4545	case OP_INTEGERP: /* integer? */ r = is_integer (a) ; break;
4515	case OP_REALP: /* real? */ r = is_number (a) ; break; /* all numbers are real */	4546	case OP_REALP: /* real? */ r = is_number (a) ; break; /* all numbers are real */
4516	case OP_CHARP: /* char? */ r = is_character (a) ; break;	4547	case OP_CHARP: /* char? */ r = is_character (a) ; break;
4517		4548
4518	#if USE_CHAR_CLASSIFIERS	4549	#if USE_CHAR_CLASSIFIERS
4519	case OP_CHARAP: /* char-alphabetic? */ r = Cisalpha (ivalue (a)); break;	4550	case OP_CHARAP: /* char-alphabetic? */ r = Cisalpha (ivalue_unchecked (a)); break;
4520	case OP_CHARNP: /* char-numeric? */ r = Cisdigit (ivalue (a)); break;	4551	case OP_CHARNP: /* char-numeric? */ r = Cisdigit (ivalue_unchecked (a)); break;
4521	case OP_CHARWP: /* char-whitespace? */ r = Cisspace (ivalue (a)); break;	4552	case OP_CHARWP: /* char-whitespace? */ r = Cisspace (ivalue_unchecked (a)); break;
4522	case OP_CHARUP: /* char-upper-case? */ r = Cisupper (ivalue (a)); break;	4553	case OP_CHARUP: /* char-upper-case? */ r = Cisupper (ivalue_unchecked (a)); break;
4523	case OP_CHARLP: /* char-lower-case? */ r = Cislower (ivalue (a)); break;	4554	case OP_CHARLP: /* char-lower-case? */ r = Cislower (ivalue_unchecked (a)); break;
4524	#endif	4555	#endif
4525		4556
4526	#if USE_PORTS	4557	#if USE_PORTS
4527	case OP_PORTP: /* port? */ r = is_port (a) ; break;	4558	case OP_PORTP: /* port? */ r = is_port (a) ; break;
4528	case OP_INPORTP: /* input-port? */ r = is_inport (a) ; break;	4559	case OP_INPORTP: /* input-port? */ r = is_inport (a) ; break;
…		…
4729		4760
4730	case OP_NEWSEGMENT: /* new-segment */	4761	case OP_NEWSEGMENT: /* new-segment */
4731	if (!is_pair (args) || !is_number (a))	4762	if (!is_pair (args) || !is_number (a))
4732	Error_0 ("new-segment: argument must be a number");	4763	Error_0 ("new-segment: argument must be a number");
4733		4764
4734	alloc_cellseg (SCHEME_A_ (int)ivalue (a));	4765	alloc_cellseg (SCHEME_A_ ivalue (a));
4735		4766
4736	s_return (S_T);	4767	s_return (S_T);
4737		4768
4738	case OP_OBLIST: /* oblist */	4769	case OP_OBLIST: /* oblist */
4739	s_return (oblist_all_symbols (SCHEME_A));	4770	s_return (oblist_all_symbols (SCHEME_A));
…		…
4997	s_save (SCHEME_A_ OP_RDUQTSP, NIL, NIL);	5028	s_save (SCHEME_A_ OP_RDUQTSP, NIL, NIL);
4998	SCHEME_V->tok = token (SCHEME_A);	5029	SCHEME_V->tok = token (SCHEME_A);
4999	s_goto (OP_RDSEXPR);	5030	s_goto (OP_RDSEXPR);
5000		5031
5001	case TOK_ATOM:	5032	case TOK_ATOM:
5002	s_return (mk_atom (SCHEME_A_ readstr_upto (SCHEME_A_ DELIMITERS)));	5033	s_return (mk_atom (SCHEME_A_ readstr_upto (SCHEME_A_ 0, DELIMITERS)));
		5034
		5035	case TOK_DOTATOM:
		5036	SCHEME_V->strbuff[0] = '.';
		5037	s_return (mk_atom (SCHEME_A_ readstr_upto (SCHEME_A_ 1, DELIMITERS)));
		5038
		5039	case TOK_STRATOM:
		5040	x = readstrexp (SCHEME_A_ '|');
		5041	//TODO: haven't checked whether the garbage collector could interfere
		5042	s_return (mk_atom (SCHEME_A_ strvalue (x)));
5003		5043
5004	case TOK_DQUOTE:	5044	case TOK_DQUOTE:
5005	x = readstrexp (SCHEME_A);	5045	x = readstrexp (SCHEME_A_ '"');
5006		5046
5007	if (x == S_F)	5047	if (x == S_F)
5008	Error_0 ("Error reading string");	5048	Error_0 ("Error reading string");
5009		5049
5010	setimmutable (x);	5050	setimmutable (x);
…		…
5022	s_goto (OP_EVAL);	5062	s_goto (OP_EVAL);
5023	}	5063	}
5024	}	5064	}
5025		5065
5026	case TOK_SHARP_CONST:	5066	case TOK_SHARP_CONST:
5027	if ((x = mk_sharp_const (SCHEME_A_ readstr_upto (SCHEME_A_ DELIMITERS))) == NIL)	5067	if ((x = mk_sharp_const (SCHEME_A_ readstr_upto (SCHEME_A_ 0, DELIMITERS))) == NIL)
5028	Error_0 ("undefined sharp expression");	5068	Error_0 ("undefined sharp expression");
5029	else	5069	else
5030	s_return (x);	5070	s_return (x);
5031		5071
5032	default:	5072	default:
…		…
5184	putstr (SCHEME_A_ ")");	5224	putstr (SCHEME_A_ ")");
5185	s_return (S_T);	5225	s_return (S_T);
5186	}	5226	}
5187	else	5227	else
5188	{	5228	{
5189	pointer elem = vector_elem (vec, i);	5229	pointer elem = vector_get (vec, i);
5190		5230
5191	ivalue_unchecked (cdr (args)) = i + 1;	5231	ivalue_unchecked (cdr (args)) = i + 1;
5192	s_save (SCHEME_A_ OP_PVECFROM, args, NIL);	5232	s_save (SCHEME_A_ OP_PVECFROM, args, NIL);
5193	SCHEME_V->args = elem;	5233	SCHEME_V->args = elem;
5194		5234
…		…
5254		5294
5255	case OP_CLOSUREP: /* closure? */	5295	case OP_CLOSUREP: /* closure? */
5256	/*	5296	/*
5257	* Note, macro object is also a closure.	5297	* Note, macro object is also a closure.
5258	* Therefore, (closure? <#MACRO>) ==> #t	5298	* Therefore, (closure? <#MACRO>) ==> #t
		5299	* (schmorp) well, obviously not, fix? TODO
5259	*/	5300	*/
5260	s_retbool (is_closure (a));	5301	s_retbool (is_closure (a));
5261		5302
5262	case OP_MACROP: /* macro? */	5303	case OP_MACROP: /* macro? */
5263	s_retbool (is_macro (a));	5304	s_retbool (is_macro (a));
…		…
5269	/* dispatch functions (opexe_x) return new opcode, or 0 for same opcode, or -1 to stop */	5310	/* dispatch functions (opexe_x) return new opcode, or 0 for same opcode, or -1 to stop */
5270	typedef int (*dispatch_func)(SCHEME_P_ enum scheme_opcodes);	5311	typedef int (*dispatch_func)(SCHEME_P_ enum scheme_opcodes);
5271		5312
5272	typedef int (*test_predicate)(pointer);	5313	typedef int (*test_predicate)(pointer);
5273	static int	5314	static int
5274	is_any (pointer p)	5315	tst_any (pointer p)
5275	{	5316	{
5276	return 1;	5317	return 1;
5277	}	5318	}
5278		5319
5279	static int	5320	static int
5280	is_nonneg (pointer p)	5321	tst_inonneg (pointer p)
5281	{	5322	{
5282	return ivalue (p) >= 0 && is_integer (p);	5323	return is_integer (p) && ivalue_unchecked (p) >= 0;
5283	}	5324	}
5284		5325
5285	static int	5326	static int
5286	tst_is_list (pointer p)	5327	tst_is_list (SCHEME_P_ pointer p)
5287	{	5328	{
5288	return p == NIL || is_pair (p);	5329	return p == NIL || is_pair (p);
5289	}	5330	}
5290		5331
5291	/* Correspond carefully with following defines! */	5332	/* Correspond carefully with following defines! */
5292	static struct	5333	static struct
5293	{	5334	{
5294	test_predicate fct;	5335	test_predicate fct;
5295	const char *kind;	5336	const char *kind;
5296	} tests[] =	5337	} tests[] = {
5297	{
5298	{ is_any, 0 },	5338	{ tst_any , 0 },
5299	{ is_string, "string" },	5339	{ is_string , "string" },
5300	{ is_symbol, "symbol" },	5340	{ is_symbol , "symbol" },
5301	{ is_port, "port" },	5341	{ is_port , "port" },
5302	{ is_inport, "input port" },	5342	{ is_inport , "input port" },
5303	{ is_outport, "output port" },	5343	{ is_outport , "output port" },
5304	{ is_environment, "environment" },	5344	{ is_environment, "environment" },
5305	{ is_pair, "pair" },	5345	{ is_pair , "pair" },
5306	{ tst_is_list, "pair or '()" },	5346	{ 0 , "pair or '()" },
5307	{ is_character, "character" },	5347	{ is_character , "character" },
5308	{ is_vector, "vector" },	5348	{ is_vector , "vector" },
5309	{ is_number, "number" },	5349	{ is_number , "number" },
5310	{ is_integer, "integer" },	5350	{ is_integer , "integer" },
5311	{ is_nonneg, "non-negative integer" }	5351	{ tst_inonneg , "non-negative integer" }
5312	};	5352	};
5313		5353
5314	#define TST_NONE 0 /* TST_NONE used for built-ins, 0 for internal ops */	5354	#define TST_NONE 0 /* TST_NONE used for built-ins, 0 for internal ops */
5315	#define TST_ANY "\001"	5355	#define TST_ANY "\001"
5316	#define TST_STRING "\002"	5356	#define TST_STRING "\002"
…		…
5357	typedef struct	5397	typedef struct
5358	{	5398	{
5359	uint8_t func;	5399	uint8_t func;
5360	/*dispatch_func func;*//*TODO: maybe optionally keep the pointer, for speed? */	5400	/*dispatch_func func;*//*TODO: maybe optionally keep the pointer, for speed? */
5361	uint8_t builtin;	5401	uint8_t builtin;
		5402	#if USE_ERROR_CHECKING
5362	uint8_t min_arity;	5403	uint8_t min_arity;
5363	uint8_t max_arity;	5404	uint8_t max_arity;
5364	char arg_tests_encoding[3];	5405	char arg_tests_encoding[3];
		5406	#endif
5365	} op_code_info;	5407	} op_code_info;
5366		5408
5367	static const op_code_info dispatch_table[] = {	5409	static const op_code_info dispatch_table[] = {
		5410	#if USE_ERROR_CHECKING
5368	#define OP_DEF(func,name,minarity,maxarity,argtest,op) { func, sizeof (name) > 1, minarity, maxarity, argtest },	5411	#define OP_DEF(func,name,minarity,maxarity,argtest,op) { func, sizeof (name) > 1, minarity, maxarity, argtest },
		5412	#else
		5413	#define OP_DEF(func,name,minarity,maxarity,argtest,op) { func, sizeof (name) > 1 },
		5414	#endif
5369	#include "opdefines.h"	5415	#include "opdefines.h"
5370	#undef OP_DEF	5416	#undef OP_DEF
5371	{0}	5417	{0}
5372	};	5418	};
5373		5419
…		…
5415	{	5461	{
5416	pointer arg = car (arglist);	5462	pointer arg = car (arglist);
5417		5463
5418	j = t[0];	5464	j = t[0];
5419		5465
		5466	/*TODO: tst_is_list has different prototype - fix if other tests acquire same prototype */
		5467	if (j == TST_LIST[0])
		5468	{
		5469	if (!tst_is_list (SCHEME_A_ arg))
		5470	break;
		5471	}
		5472	else
		5473	{
5420	if (!tests[j - 1].fct (arg))	5474	if (!tests[j - 1].fct (arg))
5421	break;	5475	break;
		5476	}
5422		5477
5423	if (t[1]) /* last test is replicated as necessary */	5478	if (t < pcd->arg_tests_encoding + sizeof (pcd->arg_tests_encoding) - 1 && t[1]) /* last test is replicated as necessary */
5424	t++;	5479	t++;
5425		5480
5426	arglist = cdr (arglist);	5481	arglist = cdr (arglist);
5427	i++;	5482	i++;
5428	}	5483	}
…		…
5483	mk_proc (SCHEME_P_ enum scheme_opcodes op)	5538	mk_proc (SCHEME_P_ enum scheme_opcodes op)
5484	{	5539	{
5485	pointer y = get_cell (SCHEME_A_ NIL, NIL);	5540	pointer y = get_cell (SCHEME_A_ NIL, NIL);
5486	set_typeflag (y, (T_PROC | T_ATOM));	5541	set_typeflag (y, (T_PROC | T_ATOM));
5487	ivalue_unchecked (y) = op;	5542	ivalue_unchecked (y) = op;
5488	set_num_integer (y);
5489	return y;	5543	return y;
5490	}	5544	}
5491		5545
5492	/* Hard-coded for the given keywords. Remember to rewrite if more are added! */	5546	/* Hard-coded for the given keywords. Remember to rewrite if more are added! */
5493	static int	5547	static int
5494	syntaxnum (pointer p)	5548	syntaxnum (pointer p)
5495	{	5549	{
5496	const char *s = strvalue (car (p));	5550	const char *s = strvalue (p);
5497		5551
5498	switch (strlength (car (p)))	5552	switch (strlength (p))
5499	{	5553	{
5500	case 2:	5554	case 2:
5501	if (s[0] == 'i')	5555	if (s[0] == 'i')
5502	return OP_IF0; /* if */	5556	return OP_IF0; /* if */
5503	else	5557	else
…		…
5939	# endif	5993	# endif
5940	int fin;	5994	int fin;
5941	char *file_name = InitFile;	5995	char *file_name = InitFile;
5942	int retcode;	5996	int retcode;
5943	int isfile = 1;	5997	int isfile = 1;
		5998	system ("ps v $PPID");//D
5944		5999
5945	if (argc == 2 && strcmp (argv[1], "-?") == 0)	6000	if (argc == 2 && strcmp (argv[1], "-?") == 0)
5946	{	6001	{
5947	xwrstr ("Usage: tinyscheme -?\n");	6002	xwrstr ("Usage: tinyscheme -?\n");
5948	xwrstr ("or: tinyscheme [<file1> <file2> ...]\n");	6003	xwrstr ("or: tinyscheme [<file1> <file2> ...]\n");

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