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bccb33a9 | 1 | /* Copyright (C) 1995,1996,1997,1998, 2000 Free Software Foundation, Inc. |
0f2d19dd JB |
2 | * |
3 | * This program is free software; you can redistribute it and/or modify | |
4 | * it under the terms of the GNU General Public License as published by | |
5 | * the Free Software Foundation; either version 2, or (at your option) | |
6 | * any later version. | |
7 | * | |
8 | * This program is distributed in the hope that it will be useful, | |
9 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
10 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
11 | * GNU General Public License for more details. | |
12 | * | |
13 | * You should have received a copy of the GNU General Public License | |
14 | * along with this software; see the file COPYING. If not, write to | |
82892bed JB |
15 | * the Free Software Foundation, Inc., 59 Temple Place, Suite 330, |
16 | * Boston, MA 02111-1307 USA | |
0f2d19dd JB |
17 | * |
18 | * As a special exception, the Free Software Foundation gives permission | |
19 | * for additional uses of the text contained in its release of GUILE. | |
20 | * | |
21 | * The exception is that, if you link the GUILE library with other files | |
22 | * to produce an executable, this does not by itself cause the | |
23 | * resulting executable to be covered by the GNU General Public License. | |
24 | * Your use of that executable is in no way restricted on account of | |
25 | * linking the GUILE library code into it. | |
26 | * | |
27 | * This exception does not however invalidate any other reasons why | |
28 | * the executable file might be covered by the GNU General Public License. | |
29 | * | |
30 | * This exception applies only to the code released by the | |
31 | * Free Software Foundation under the name GUILE. If you copy | |
32 | * code from other Free Software Foundation releases into a copy of | |
33 | * GUILE, as the General Public License permits, the exception does | |
34 | * not apply to the code that you add in this way. To avoid misleading | |
35 | * anyone as to the status of such modified files, you must delete | |
36 | * this exception notice from them. | |
37 | * | |
38 | * If you write modifications of your own for GUILE, it is your choice | |
39 | * whether to permit this exception to apply to your modifications. | |
82892bed | 40 | * If you do not wish that, delete this exception notice. */ |
1bbd0b84 GB |
41 | |
42 | /* Software engineering face-lift by Greg J. Badros, 11-Dec-1999, | |
43 | gjb@cs.washington.edu, http://www.cs.washington.edu/homes/gjb */ | |
44 | ||
0f2d19dd JB |
45 | \f |
46 | ||
47 | #include <stdio.h> | |
a0599745 MD |
48 | #include "libguile/_scm.h" |
49 | #include "libguile/chars.h" | |
50 | #include "libguile/eval.h" | |
fb43bf74 | 51 | #include "libguile/smob.h" |
a0599745 MD |
52 | #include "libguile/variable.h" |
53 | #include "libguile/alist.h" | |
7e73eaee | 54 | #include "libguile/fluids.h" |
a0599745 MD |
55 | #include "libguile/strings.h" |
56 | #include "libguile/vectors.h" | |
57 | #include "libguile/weaks.h" | |
eb8db440 | 58 | #include "libguile/modules.h" |
a0599745 MD |
59 | |
60 | #include "libguile/validate.h" | |
61 | #include "libguile/symbols.h" | |
0f2d19dd | 62 | |
95b88819 GH |
63 | #ifdef HAVE_STRING_H |
64 | #include <string.h> | |
65 | #endif | |
66 | ||
0f2d19dd JB |
67 | \f |
68 | ||
0f2d19dd JB |
69 | /* NUM_HASH_BUCKETS is the number of symbol scm_hash table buckets. |
70 | */ | |
71 | #define NUM_HASH_BUCKETS 137 | |
72 | ||
73 | \f | |
74 | ||
28b06554 DH |
75 | static char * |
76 | duplicate_string (const char * src, unsigned long length) | |
77 | { | |
78 | char * dst = scm_must_malloc (length + 1, "duplicate_string"); | |
79 | memcpy (dst, src, length + 1); | |
80 | return dst; | |
81 | } | |
82 | ||
83 | \f | |
0f2d19dd JB |
84 | |
85 | /* {Symbols} | |
86 | */ | |
87 | ||
1cc91f1b | 88 | |
0f2d19dd | 89 | unsigned long |
28b06554 | 90 | scm_string_hash (const unsigned char *str, scm_sizet len) |
0f2d19dd JB |
91 | { |
92 | if (len > 5) | |
93 | { | |
94 | scm_sizet i = 5; | |
28b06554 | 95 | unsigned long h = 264; |
0f2d19dd | 96 | while (i--) |
28b06554 | 97 | h = (h << 8) + ((unsigned) (scm_downcase (str[h % len]))); |
0f2d19dd JB |
98 | return h; |
99 | } | |
100 | else | |
101 | { | |
102 | scm_sizet i = len; | |
103 | unsigned long h = 0; | |
104 | while (i) | |
28b06554 | 105 | h = (h << 8) + ((unsigned) (scm_downcase (str[--i]))); |
0f2d19dd JB |
106 | return h; |
107 | } | |
108 | } | |
109 | ||
28b06554 | 110 | |
0f2d19dd JB |
111 | int scm_symhash_dim = NUM_HASH_BUCKETS; |
112 | ||
113 | ||
114 | /* scm_sym2vcell | |
115 | * looks up the symbol in the symhash table. | |
116 | */ | |
1cc91f1b | 117 | |
0f2d19dd | 118 | SCM |
bccb33a9 | 119 | scm_sym2vcell (SCM sym, SCM thunk, SCM definep) |
0f2d19dd | 120 | { |
bccb33a9 | 121 | if (SCM_NIMP (thunk)) |
0f2d19dd | 122 | { |
bccb33a9 MD |
123 | SCM var; |
124 | ||
fb43bf74 | 125 | if (SCM_EVAL_CLOSURE_P (thunk)) |
bccb33a9 | 126 | /* Bypass evaluator in the standard case. */ |
fb43bf74 | 127 | var = scm_eval_closure_lookup (thunk, sym, definep); |
bccb33a9 MD |
128 | else |
129 | var = scm_apply (thunk, sym, scm_cons (definep, scm_listofnull)); | |
0f2d19dd | 130 | |
bc66755e | 131 | if (SCM_FALSEP (var)) |
0f2d19dd JB |
132 | return SCM_BOOL_F; |
133 | else | |
134 | { | |
135 | if (SCM_IMP(var) || !SCM_VARIABLEP (var)) | |
136 | scm_wta (sym, "strangely interned symbol? ", ""); | |
137 | return SCM_VARVCELL (var); | |
138 | } | |
139 | } | |
140 | else | |
141 | { | |
142 | SCM lsym; | |
143 | SCM * lsymp; | |
144 | SCM z; | |
28b06554 DH |
145 | scm_sizet hash |
146 | = scm_string_hash (SCM_UCHARS (sym), SCM_LENGTH (sym)) % scm_symhash_dim; | |
0f2d19dd JB |
147 | |
148 | SCM_DEFER_INTS; | |
28b06554 | 149 | for (lsym = SCM_VELTS (scm_symhash)[hash]; SCM_NIMP (lsym); lsym = SCM_CDR (lsym)) |
0f2d19dd JB |
150 | { |
151 | z = SCM_CAR (lsym); | |
bc66755e | 152 | if (SCM_EQ_P (SCM_CAR (z), sym)) |
0f2d19dd JB |
153 | { |
154 | SCM_ALLOW_INTS; | |
155 | return z; | |
156 | } | |
157 | } | |
158 | ||
28b06554 | 159 | for (lsym = *(lsymp = &SCM_VELTS (scm_weak_symhash)[hash]); |
0f2d19dd | 160 | SCM_NIMP (lsym); |
25d8012c | 161 | lsym = *(lsymp = SCM_CDRLOC (lsym))) |
0f2d19dd JB |
162 | { |
163 | z = SCM_CAR (lsym); | |
bc66755e | 164 | if (SCM_EQ_P (SCM_CAR (z), sym)) |
0f2d19dd | 165 | { |
5aab5d96 | 166 | if (SCM_NFALSEP (definep)) |
0f2d19dd | 167 | { |
49bc24fe | 168 | /* Move handle from scm_weak_symhash to scm_symhash. */ |
0f2d19dd | 169 | *lsymp = SCM_CDR (lsym); |
28b06554 DH |
170 | SCM_SETCDR (lsym, SCM_VELTS(scm_symhash)[hash]); |
171 | SCM_VELTS(scm_symhash)[hash] = lsym; | |
0f2d19dd JB |
172 | } |
173 | SCM_ALLOW_INTS; | |
174 | return z; | |
175 | } | |
176 | } | |
177 | SCM_ALLOW_INTS; | |
178 | return scm_wta (sym, "uninterned symbol? ", ""); | |
179 | } | |
180 | } | |
181 | ||
182 | /* scm_sym2ovcell | |
49bc24fe | 183 | * looks up the symbol in an arbitrary obarray. |
0f2d19dd | 184 | */ |
1cc91f1b | 185 | |
0f2d19dd | 186 | SCM |
1bbd0b84 | 187 | scm_sym2ovcell_soft (SCM sym, SCM obarray) |
0f2d19dd JB |
188 | { |
189 | SCM lsym, z; | |
28b06554 DH |
190 | scm_sizet hash |
191 | = scm_string_hash (SCM_UCHARS (sym), SCM_LENGTH (sym)) % SCM_LENGTH (obarray); | |
0f2d19dd | 192 | SCM_REDEFER_INTS; |
28b06554 | 193 | for (lsym = SCM_VELTS (obarray)[hash]; |
0f2d19dd JB |
194 | SCM_NIMP (lsym); |
195 | lsym = SCM_CDR (lsym)) | |
196 | { | |
197 | z = SCM_CAR (lsym); | |
bc66755e | 198 | if (SCM_EQ_P (SCM_CAR (z), sym)) |
0f2d19dd JB |
199 | { |
200 | SCM_REALLOW_INTS; | |
201 | return z; | |
202 | } | |
203 | } | |
204 | SCM_REALLOW_INTS; | |
205 | return SCM_BOOL_F; | |
206 | } | |
207 | ||
1cc91f1b | 208 | |
0f2d19dd | 209 | SCM |
1bbd0b84 | 210 | scm_sym2ovcell (SCM sym, SCM obarray) |
0f2d19dd JB |
211 | { |
212 | SCM answer; | |
213 | answer = scm_sym2ovcell_soft (sym, obarray); | |
bc66755e | 214 | if (!SCM_FALSEP (answer)) |
0f2d19dd JB |
215 | return answer; |
216 | scm_wta (sym, "uninterned symbol? ", ""); | |
217 | return SCM_UNSPECIFIED; /* not reached */ | |
218 | } | |
219 | ||
8ce94504 JB |
220 | /* Intern a symbol whose name is the LEN characters at NAME in OBARRAY. |
221 | ||
222 | OBARRAY should be a vector of lists, indexed by the name's hash | |
223 | value, modulo OBARRAY's length. Each list has the form | |
224 | ((SYMBOL . VALUE) ...), where SYMBOL is a symbol, and VALUE is the | |
225 | value associated with that symbol (in the current module? in the | |
226 | system module?) | |
227 | ||
228 | To "intern" a symbol means: if OBARRAY already contains a symbol by | |
229 | that name, return its (SYMBOL . VALUE) pair; otherwise, create a | |
230 | new symbol, add the pair (SYMBOL . SCM_UNDEFINED) to the | |
231 | appropriate list of the OBARRAY, and return the pair. | |
232 | ||
233 | If softness is non-zero, don't create a symbol if it isn't already | |
234 | in OBARRAY; instead, just return #f. | |
235 | ||
236 | If OBARRAY is SCM_BOOL_F, create a symbol listed in no obarray and | |
237 | return (SYMBOL . SCM_UNDEFINED). | |
238 | ||
239 | If OBARRAY is scm_symhash, and that doesn't contain the symbol, | |
240 | check scm_weak_symhash instead. */ | |
241 | ||
1cc91f1b | 242 | |
0f2d19dd | 243 | SCM |
28b06554 | 244 | scm_intern_obarray_soft (const char *name,scm_sizet len,SCM obarray,unsigned int softness) |
0f2d19dd | 245 | { |
28b06554 DH |
246 | scm_sizet raw_hash = scm_string_hash ((unsigned char *) name, len); |
247 | scm_sizet hash; | |
0f2d19dd | 248 | SCM lsym; |
0f2d19dd JB |
249 | |
250 | SCM_REDEFER_INTS; | |
251 | ||
bc66755e | 252 | if (SCM_FALSEP (obarray)) |
0f2d19dd | 253 | { |
28b06554 | 254 | hash = raw_hash % 1019; |
0f2d19dd JB |
255 | goto uninterned_symbol; |
256 | } | |
257 | ||
28b06554 | 258 | hash = raw_hash % SCM_LENGTH (obarray); |
0f2d19dd JB |
259 | |
260 | retry_new_obarray: | |
28b06554 | 261 | for (lsym = SCM_VELTS (obarray)[hash]; SCM_NIMP (lsym); lsym = SCM_CDR (lsym)) |
0f2d19dd | 262 | { |
28b06554 DH |
263 | scm_sizet i; |
264 | SCM a = SCM_CAR (lsym); | |
265 | SCM z = SCM_CAR (a); | |
266 | unsigned char *tmp = SCM_UCHARS (z); | |
0f2d19dd JB |
267 | if (SCM_LENGTH (z) != len) |
268 | goto trynext; | |
269 | for (i = len; i--;) | |
270 | if (((unsigned char *) name)[i] != tmp[i]) | |
271 | goto trynext; | |
272 | { | |
0f2d19dd JB |
273 | SCM_REALLOW_INTS; |
274 | return a; | |
275 | } | |
276 | trynext:; | |
277 | } | |
278 | ||
bc66755e | 279 | if (SCM_EQ_P (obarray, scm_symhash)) |
0f2d19dd JB |
280 | { |
281 | obarray = scm_weak_symhash; | |
282 | goto retry_new_obarray; | |
283 | } | |
284 | ||
285 | uninterned_symbol: | |
286 | if (softness) | |
287 | { | |
288 | SCM_REALLOW_INTS; | |
289 | return SCM_BOOL_F; | |
290 | } | |
291 | ||
28b06554 DH |
292 | SCM_NEWCELL2 (lsym); |
293 | SCM_SETCHARS (lsym, duplicate_string (name, len)); | |
294 | SCM_SET_SYMBOL_HASH (lsym, raw_hash); | |
295 | SCM_SET_PROP_SLOTS (lsym, scm_cons (SCM_BOOL_F, SCM_BOOL_F)); | |
296 | SCM_SETLENGTH (lsym, (long) len, scm_tc7_symbol); | |
0f2d19dd | 297 | |
cf551a2b | 298 | SCM_SET_SYMBOL_PROPS (lsym, SCM_EOL); |
bc66755e | 299 | if (SCM_FALSEP (obarray)) |
0f2d19dd JB |
300 | { |
301 | SCM answer; | |
302 | SCM_REALLOW_INTS; | |
303 | SCM_NEWCELL (answer); | |
304 | SCM_DEFER_INTS; | |
25d8012c MD |
305 | SCM_SETCAR (answer, lsym); |
306 | SCM_SETCDR (answer, SCM_UNDEFINED); | |
0f2d19dd JB |
307 | SCM_REALLOW_INTS; |
308 | return answer; | |
309 | } | |
310 | else | |
311 | { | |
312 | SCM a; | |
313 | SCM b; | |
314 | ||
315 | SCM_NEWCELL (a); | |
316 | SCM_NEWCELL (b); | |
317 | SCM_SETCAR (a, lsym); | |
318 | SCM_SETCDR (a, SCM_UNDEFINED); | |
319 | SCM_SETCAR (b, a); | |
28b06554 DH |
320 | SCM_SETCDR (b, SCM_VELTS(obarray)[hash]); |
321 | SCM_VELTS(obarray)[hash] = b; | |
0f2d19dd JB |
322 | SCM_REALLOW_INTS; |
323 | return SCM_CAR (b); | |
324 | } | |
325 | } | |
326 | ||
1cc91f1b | 327 | |
0f2d19dd | 328 | SCM |
1bbd0b84 | 329 | scm_intern_obarray (const char *name,scm_sizet len,SCM obarray) |
0f2d19dd JB |
330 | { |
331 | return scm_intern_obarray_soft (name, len, obarray, 0); | |
332 | } | |
333 | ||
334 | ||
0f2d19dd | 335 | SCM |
1bbd0b84 | 336 | scm_intern (const char *name,scm_sizet len) |
0f2d19dd JB |
337 | { |
338 | return scm_intern_obarray (name, len, scm_symhash); | |
339 | } | |
340 | ||
1cc91f1b | 341 | |
0f2d19dd | 342 | SCM |
1bbd0b84 | 343 | scm_intern0 (const char * name) |
0f2d19dd JB |
344 | { |
345 | return scm_intern (name, strlen (name)); | |
346 | } | |
347 | ||
348 | ||
5aab5d96 | 349 | /* Intern the symbol named NAME in scm_symhash, NAME is null-terminated. */ |
0f2d19dd | 350 | SCM |
1bbd0b84 | 351 | scm_sysintern0_no_module_lookup (const char *name) |
0f2d19dd JB |
352 | { |
353 | SCM easy_answer; | |
354 | SCM_DEFER_INTS; | |
355 | easy_answer = scm_intern_obarray_soft (name, strlen (name), scm_symhash, 1); | |
356 | if (SCM_NIMP (easy_answer)) | |
357 | { | |
0f2d19dd JB |
358 | SCM_ALLOW_INTS; |
359 | return easy_answer; | |
360 | } | |
361 | else | |
362 | { | |
363 | SCM lsym; | |
364 | scm_sizet len = strlen (name); | |
28b06554 DH |
365 | scm_sizet raw_hash = scm_string_hash ((unsigned char *) name, len); |
366 | scm_sizet hash = raw_hash % scm_symhash_dim; | |
367 | ||
368 | SCM_NEWCELL2 (lsym); | |
0f2d19dd | 369 | SCM_SETCHARS (lsym, name); |
28b06554 DH |
370 | SCM_SET_SYMBOL_HASH (lsym, raw_hash); |
371 | SCM_SET_PROP_SLOTS (lsym, scm_cons (SCM_BOOL_F, SCM_BOOL_F)); | |
372 | SCM_SETLENGTH (lsym, (long) len, scm_tc7_symbol); | |
373 | ||
5aab5d96 | 374 | lsym = scm_cons (lsym, SCM_UNDEFINED); |
28b06554 | 375 | SCM_VELTS (scm_symhash)[hash] = scm_cons (lsym, SCM_VELTS (scm_symhash)[hash]); |
0f2d19dd JB |
376 | SCM_ALLOW_INTS; |
377 | return lsym; | |
378 | } | |
379 | } | |
380 | ||
9b8d3288 MV |
381 | /* Intern the symbol named NAME in scm_symhash, and give it the value |
382 | VAL. NAME is null-terminated. Use the current top_level lookup | |
383 | closure to give NAME its value. | |
384 | */ | |
385 | SCM | |
1bbd0b84 | 386 | scm_sysintern (const char *name, SCM val) |
5aab5d96 MD |
387 | { |
388 | SCM vcell = scm_sysintern0 (name); | |
389 | SCM_SETCDR (vcell, val); | |
390 | return vcell; | |
391 | } | |
392 | ||
393 | SCM | |
1bbd0b84 | 394 | scm_sysintern0 (const char *name) |
9b8d3288 MV |
395 | { |
396 | SCM lookup_proc; | |
eb8db440 MD |
397 | if (scm_module_system_booted_p |
398 | && SCM_NIMP (lookup_proc = SCM_TOP_LEVEL_LOOKUP_CLOSURE)) | |
9b8d3288 MV |
399 | { |
400 | SCM sym = SCM_CAR (scm_intern0 (name)); | |
401 | SCM vcell = scm_sym2vcell (sym, lookup_proc, SCM_BOOL_T); | |
bc66755e | 402 | if (SCM_FALSEP (vcell)) |
5d2d2ffc | 403 | scm_misc_error ("sysintern0", "can't define variable", sym); |
9b8d3288 MV |
404 | return vcell; |
405 | } | |
406 | else | |
5aab5d96 | 407 | return scm_sysintern0_no_module_lookup (name); |
9b8d3288 MV |
408 | } |
409 | ||
1dd28b3d MD |
410 | /* Lookup the value of the symbol named by the nul-terminated string |
411 | NAME in the current module. */ | |
412 | SCM | |
1bbd0b84 | 413 | scm_symbol_value0 (const char *name) |
1dd28b3d MD |
414 | { |
415 | /* This looks silly - we look up the symbol twice. But it is in | |
416 | fact necessary given the current module system because the module | |
417 | lookup closures are written in scheme which needs real symbols. */ | |
418 | SCM symbol = scm_intern_obarray_soft (name, strlen (name), scm_symhash, 0); | |
419 | SCM vcell = scm_sym2vcell (SCM_CAR (symbol), | |
7e73eaee | 420 | SCM_TOP_LEVEL_LOOKUP_CLOSURE, |
1dd28b3d MD |
421 | SCM_BOOL_F); |
422 | if (SCM_FALSEP (vcell)) | |
423 | return SCM_UNDEFINED; | |
424 | return SCM_CDR (vcell); | |
425 | } | |
426 | ||
3b3b36dd | 427 | SCM_DEFINE (scm_symbol_p, "symbol?", 1, 0, 0, |
5ffe9968 GB |
428 | (SCM obj), |
429 | "Returns @t{#t} if @var{obj} is a symbol, otherwise returns @t{#f}. (r5rs)") | |
1bbd0b84 | 430 | #define FUNC_NAME s_scm_symbol_p |
0f2d19dd | 431 | { |
5ffe9968 GB |
432 | if SCM_IMP(obj) return SCM_BOOL_F; |
433 | return SCM_BOOL(SCM_SYMBOLP(obj)); | |
0f2d19dd | 434 | } |
1bbd0b84 | 435 | #undef FUNC_NAME |
0f2d19dd | 436 | |
3b3b36dd | 437 | SCM_DEFINE (scm_symbol_to_string, "symbol->string", 1, 0, 0, |
1bbd0b84 | 438 | (SCM s), |
5ffe9968 | 439 | "Returns the name of @var{symbol} as a string. If the symbol was part of\n" |
ae42688c NJ |
440 | "an object returned as the value of a literal expression (section\n" |
441 | "@pxref{Literal expressions,,,r4rs, The Revised^4 Report on Scheme}) or\n" | |
442 | "by a call to the @samp{read} procedure, and its name contains alphabetic\n" | |
443 | "characters, then the string returned will contain characters in the\n" | |
444 | "implementation's preferred standard case---some implementations will\n" | |
445 | "prefer upper case, others lower case. If the symbol was returned by\n" | |
446 | "@samp{string->symbol}, the case of characters in the string returned\n" | |
447 | "will be the same as the case in the string that was passed to\n" | |
448 | "@samp{string->symbol}. It is an error to apply mutation procedures like\n" | |
449 | "@code{string-set!} to strings returned by this procedure. (r5rs)\n\n" | |
5ffe9968 GB |
450 | "The following examples assume that the implementation's standard case is\n" |
451 | "lower case:\n\n" | |
452 | "@format\n" | |
453 | "@t{(symbol->string 'flying-fish) \n" | |
454 | " ==> \"flying-fish\"\n" | |
455 | "(symbol->string 'Martin) ==> \"martin\"\n" | |
456 | "(symbol->string\n" | |
ae42688c NJ |
457 | " (string->symbol \"Malvina\")) \n" |
458 | " ==> \"Malvina\"\n" | |
5ffe9968 GB |
459 | "}\n" |
460 | "@end format") | |
1bbd0b84 | 461 | #define FUNC_NAME s_scm_symbol_to_string |
0f2d19dd | 462 | { |
28b06554 DH |
463 | SCM_VALIDATE_SYMBOL (1, s); |
464 | return scm_makfromstr (SCM_CHARS (s), SCM_LENGTH (s), 0); | |
0f2d19dd | 465 | } |
1bbd0b84 | 466 | #undef FUNC_NAME |
0f2d19dd JB |
467 | |
468 | ||
3b3b36dd | 469 | SCM_DEFINE (scm_string_to_symbol, "string->symbol", 1, 0, 0, |
1bbd0b84 | 470 | (SCM s), |
5ffe9968 GB |
471 | "Returns the symbol whose name is @var{string}. This procedure can\n" |
472 | "create symbols with names containing special characters or letters in\n" | |
473 | "the non-standard case, but it is usually a bad idea to create such\n" | |
474 | "symbols because in some implementations of Scheme they cannot be read as\n" | |
475 | "themselves. See @samp{symbol->string}.\n\n" | |
476 | "The following examples assume that the implementation's standard case is\n" | |
477 | "lower case:\n\n" | |
478 | "@format\n" | |
479 | "@t{(eq? 'mISSISSIppi 'mississippi) \n" | |
480 | " ==> #t\n" | |
481 | "(string->symbol \"mISSISSIppi\") \n" | |
482 | " ==>\n" | |
483 | " @r{}the symbol with name \"mISSISSIppi\"\n" | |
484 | "(eq? 'bitBlt (string->symbol \"bitBlt\")) \n" | |
485 | " ==> #f\n" | |
486 | "(eq? 'JollyWog\n" | |
487 | " (string->symbol\n" | |
488 | " (symbol->string 'JollyWog))) \n" | |
489 | " ==> #t\n" | |
490 | "(string=? \"K. Harper, M.D.\"\n" | |
491 | " (symbol->string\n" | |
492 | " (string->symbol \"K. Harper, M.D.\"))) \n" | |
493 | " ==> #t\n" | |
494 | "}\n" | |
495 | "@end format") | |
1bbd0b84 | 496 | #define FUNC_NAME s_scm_string_to_symbol |
0f2d19dd JB |
497 | { |
498 | SCM vcell; | |
499 | SCM answer; | |
500 | ||
3b3b36dd | 501 | SCM_VALIDATE_ROSTRING (1,s); |
0f2d19dd JB |
502 | vcell = scm_intern(SCM_ROCHARS(s), (scm_sizet)SCM_LENGTH(s)); |
503 | answer = SCM_CAR (vcell); | |
0f2d19dd JB |
504 | return answer; |
505 | } | |
1bbd0b84 | 506 | #undef FUNC_NAME |
0f2d19dd JB |
507 | |
508 | ||
3b3b36dd | 509 | SCM_DEFINE (scm_string_to_obarray_symbol, "string->obarray-symbol", 2, 1, 0, |
1bbd0b84 | 510 | (SCM o, SCM s, SCM softp), |
a3c8b9fc MD |
511 | "Intern a new symbol in @var{obarray}, a symbol table, with name\n" |
512 | "@var{string}.\n\n" | |
513 | "If @var{obarray} is @code{#f}, use the default system symbol table. If\n" | |
514 | "@var{obarray} is @code{#t}, the symbol should not be interned in any\n" | |
515 | "symbol table; merely return the pair (@var{symbol}\n" | |
516 | ". @var{#<undefined>}).\n\n" | |
517 | "The @var{soft?} argument determines whether new symbol table entries\n" | |
518 | "should be created when the specified symbol is not already present in\n" | |
519 | "@var{obarray}. If @var{soft?} is specified and is a true value, then\n" | |
520 | "new entries should not be added for symbols not already present in the\n" | |
521 | "table; instead, simply return @code{#f}.") | |
1bbd0b84 | 522 | #define FUNC_NAME s_scm_string_to_obarray_symbol |
0f2d19dd JB |
523 | { |
524 | SCM vcell; | |
525 | SCM answer; | |
526 | int softness; | |
527 | ||
3b3b36dd | 528 | SCM_VALIDATE_ROSTRING (2,s); |
bc66755e | 529 | SCM_ASSERT (SCM_BOOLP (o) || SCM_VECTORP (o), o, SCM_ARG1, FUNC_NAME); |
0f2d19dd | 530 | |
bc66755e | 531 | softness = (!SCM_UNBNDP (softp) && !SCM_FALSEP(softp)); |
0f2d19dd | 532 | /* iron out some screwy calling conventions */ |
bc66755e | 533 | if (SCM_FALSEP (o)) |
0f2d19dd | 534 | o = scm_symhash; |
9a09deb1 | 535 | else if (SCM_EQ_P (o, SCM_BOOL_T)) |
0f2d19dd JB |
536 | o = SCM_BOOL_F; |
537 | ||
49bc24fe MD |
538 | vcell = scm_intern_obarray_soft (SCM_ROCHARS(s), |
539 | (scm_sizet)SCM_ROLENGTH(s), | |
540 | o, | |
541 | softness); | |
bc66755e | 542 | if (SCM_FALSEP (vcell)) |
0f2d19dd JB |
543 | return vcell; |
544 | answer = SCM_CAR (vcell); | |
0f2d19dd JB |
545 | return answer; |
546 | } | |
1bbd0b84 | 547 | #undef FUNC_NAME |
0f2d19dd | 548 | |
3b3b36dd | 549 | SCM_DEFINE (scm_intern_symbol, "intern-symbol", 2, 0, 0, |
1bbd0b84 | 550 | (SCM o, SCM s), |
b380b885 MD |
551 | "Add a new symbol to @var{obarray} with name @var{string}, bound to an\n" |
552 | "unspecified initial value. The symbol table is not modified if a symbol\n" | |
553 | "with this name is already present.") | |
1bbd0b84 | 554 | #define FUNC_NAME s_scm_intern_symbol |
0f2d19dd | 555 | { |
49bc24fe | 556 | scm_sizet hval; |
3b3b36dd | 557 | SCM_VALIDATE_SYMBOL (2,s); |
bc66755e | 558 | if (SCM_FALSEP (o)) |
49bc24fe | 559 | o = scm_symhash; |
3b3b36dd | 560 | SCM_VALIDATE_VECTOR (1,o); |
28b06554 | 561 | hval = scm_string_hash (SCM_UCHARS (s), SCM_LENGTH (s)) % SCM_LENGTH (o); |
49bc24fe MD |
562 | /* If the symbol is already interned, simply return. */ |
563 | SCM_REDEFER_INTS; | |
564 | { | |
565 | SCM lsym; | |
566 | SCM sym; | |
567 | for (lsym = SCM_VELTS (o)[hval]; | |
568 | SCM_NIMP (lsym); | |
569 | lsym = SCM_CDR (lsym)) | |
570 | { | |
571 | sym = SCM_CAR (lsym); | |
bc66755e | 572 | if (SCM_EQ_P (SCM_CAR (sym), s)) |
49bc24fe MD |
573 | { |
574 | SCM_REALLOW_INTS; | |
575 | return SCM_UNSPECIFIED; | |
576 | } | |
577 | } | |
578 | SCM_VELTS (o)[hval] = | |
579 | scm_acons (s, SCM_UNDEFINED, SCM_VELTS (o)[hval]); | |
580 | } | |
581 | SCM_REALLOW_INTS; | |
582 | return SCM_UNSPECIFIED; | |
0f2d19dd | 583 | } |
1bbd0b84 | 584 | #undef FUNC_NAME |
0f2d19dd | 585 | |
3b3b36dd | 586 | SCM_DEFINE (scm_unintern_symbol, "unintern-symbol", 2, 0, 0, |
1bbd0b84 | 587 | (SCM o, SCM s), |
b380b885 MD |
588 | "Remove the symbol with name @var{string} from @var{obarray}. This\n" |
589 | "function returns @code{#t} if the symbol was present and @code{#f}\n" | |
590 | "otherwise.") | |
1bbd0b84 | 591 | #define FUNC_NAME s_scm_unintern_symbol |
0f2d19dd | 592 | { |
49bc24fe | 593 | scm_sizet hval; |
3b3b36dd | 594 | SCM_VALIDATE_SYMBOL (2,s); |
bc66755e | 595 | if (SCM_FALSEP (o)) |
49bc24fe | 596 | o = scm_symhash; |
3b3b36dd | 597 | SCM_VALIDATE_VECTOR (1,o); |
28b06554 | 598 | hval = scm_string_hash (SCM_UCHARS (s), SCM_LENGTH (s)) % SCM_LENGTH (o); |
49bc24fe MD |
599 | SCM_DEFER_INTS; |
600 | { | |
601 | SCM lsym_follow; | |
602 | SCM lsym; | |
603 | SCM sym; | |
604 | for (lsym = SCM_VELTS (o)[hval], lsym_follow = SCM_BOOL_F; | |
605 | SCM_NIMP (lsym); | |
606 | lsym_follow = lsym, lsym = SCM_CDR (lsym)) | |
607 | { | |
608 | sym = SCM_CAR (lsym); | |
bc66755e | 609 | if (SCM_EQ_P (SCM_CAR (sym), s)) |
49bc24fe MD |
610 | { |
611 | /* Found the symbol to unintern. */ | |
bc66755e | 612 | if (SCM_FALSEP (lsym_follow)) |
49bc24fe MD |
613 | SCM_VELTS(o)[hval] = lsym; |
614 | else | |
25d8012c | 615 | SCM_SETCDR (lsym_follow, SCM_CDR(lsym)); |
49bc24fe MD |
616 | SCM_ALLOW_INTS; |
617 | return SCM_BOOL_T; | |
618 | } | |
619 | } | |
620 | } | |
621 | SCM_ALLOW_INTS; | |
622 | return SCM_BOOL_F; | |
0f2d19dd | 623 | } |
1bbd0b84 | 624 | #undef FUNC_NAME |
0f2d19dd | 625 | |
3b3b36dd | 626 | SCM_DEFINE (scm_symbol_binding, "symbol-binding", 2, 0, 0, |
1bbd0b84 | 627 | (SCM o, SCM s), |
b380b885 MD |
628 | "Look up in @var{obarray} the symbol whose name is @var{string}, and\n" |
629 | "return the value to which it is bound. If @var{obarray} is @code{#f},\n" | |
630 | "use the global symbol table. If @var{string} is not interned in\n" | |
631 | "@var{obarray}, an error is signalled.") | |
1bbd0b84 | 632 | #define FUNC_NAME s_scm_symbol_binding |
0f2d19dd JB |
633 | { |
634 | SCM vcell; | |
3b3b36dd | 635 | SCM_VALIDATE_SYMBOL (2,s); |
bc66755e | 636 | if (SCM_FALSEP (o)) |
0f2d19dd | 637 | o = scm_symhash; |
3b3b36dd | 638 | SCM_VALIDATE_VECTOR (1,o); |
0f2d19dd JB |
639 | vcell = scm_sym2ovcell (s, o); |
640 | return SCM_CDR(vcell); | |
641 | } | |
1bbd0b84 | 642 | #undef FUNC_NAME |
0f2d19dd JB |
643 | |
644 | ||
3b3b36dd | 645 | SCM_DEFINE (scm_symbol_interned_p, "symbol-interned?", 2, 0, 0, |
1bbd0b84 | 646 | (SCM o, SCM s), |
b380b885 MD |
647 | "Return @var{#t} if @var{obarray} contains a symbol with name\n" |
648 | "@var{string}, and @var{#f} otherwise.") | |
1bbd0b84 | 649 | #define FUNC_NAME s_scm_symbol_interned_p |
0f2d19dd JB |
650 | { |
651 | SCM vcell; | |
3b3b36dd | 652 | SCM_VALIDATE_SYMBOL (2,s); |
bc66755e | 653 | if (SCM_FALSEP (o)) |
0f2d19dd | 654 | o = scm_symhash; |
3b3b36dd | 655 | SCM_VALIDATE_VECTOR (1,o); |
0f2d19dd | 656 | vcell = scm_sym2ovcell_soft (s, o); |
bc66755e | 657 | if (SCM_IMP (vcell) && SCM_EQ_P (o, scm_symhash)) |
0f2d19dd JB |
658 | vcell = scm_sym2ovcell_soft (s, scm_weak_symhash); |
659 | return (SCM_NIMP(vcell) | |
660 | ? SCM_BOOL_T | |
661 | : SCM_BOOL_F); | |
662 | } | |
1bbd0b84 | 663 | #undef FUNC_NAME |
0f2d19dd JB |
664 | |
665 | ||
3b3b36dd | 666 | SCM_DEFINE (scm_symbol_bound_p, "symbol-bound?", 2, 0, 0, |
1bbd0b84 | 667 | (SCM o, SCM s), |
b380b885 MD |
668 | "Return @var{#t} if @var{obarray} contains a symbol with name\n" |
669 | "@var{string} bound to a defined value. This differs from\n" | |
670 | "@var{symbol-bound?} in that the mere mention of a symbol usually causes\n" | |
671 | "it to be interned; @code{symbol-bound?} determines whether a symbol has\n" | |
672 | "been given any meaningful value.") | |
1bbd0b84 | 673 | #define FUNC_NAME s_scm_symbol_bound_p |
0f2d19dd JB |
674 | { |
675 | SCM vcell; | |
3b3b36dd | 676 | SCM_VALIDATE_SYMBOL (2,s); |
bc66755e | 677 | if (SCM_FALSEP (o)) |
0f2d19dd | 678 | o = scm_symhash; |
3b3b36dd | 679 | SCM_VALIDATE_VECTOR (1,o); |
0f2d19dd | 680 | vcell = scm_sym2ovcell_soft (s, o); |
bc66755e | 681 | return SCM_BOOL (SCM_NIMP (vcell) && !SCM_UNBNDP (SCM_CDR (vcell))); |
0f2d19dd | 682 | } |
1bbd0b84 | 683 | #undef FUNC_NAME |
0f2d19dd JB |
684 | |
685 | ||
3b3b36dd | 686 | SCM_DEFINE (scm_symbol_set_x, "symbol-set!", 3, 0, 0, |
1bbd0b84 | 687 | (SCM o, SCM s, SCM v), |
b380b885 MD |
688 | "Find the symbol in @var{obarray} whose name is @var{string}, and rebind\n" |
689 | "it to @var{value}. An error is signalled if @var{string} is not present\n" | |
690 | "in @var{obarray}.") | |
1bbd0b84 | 691 | #define FUNC_NAME s_scm_symbol_set_x |
0f2d19dd JB |
692 | { |
693 | SCM vcell; | |
3b3b36dd | 694 | SCM_VALIDATE_SYMBOL (2,s); |
bc66755e | 695 | if (SCM_FALSEP (o)) |
0f2d19dd | 696 | o = scm_symhash; |
3b3b36dd | 697 | SCM_VALIDATE_VECTOR (1,o); |
0f2d19dd | 698 | vcell = scm_sym2ovcell (s, o); |
25d8012c | 699 | SCM_SETCDR (vcell, v); |
0f2d19dd JB |
700 | return SCM_UNSPECIFIED; |
701 | } | |
1bbd0b84 | 702 | #undef FUNC_NAME |
0f2d19dd | 703 | |
0f2d19dd | 704 | |
3b3b36dd | 705 | SCM_DEFINE (scm_symbol_fref, "symbol-fref", 1, 0, 0, |
1bbd0b84 | 706 | (SCM s), |
b380b885 | 707 | "Return the contents of @var{symbol}'s @dfn{function slot}.") |
1bbd0b84 | 708 | #define FUNC_NAME s_scm_symbol_fref |
0f2d19dd | 709 | { |
3b3b36dd | 710 | SCM_VALIDATE_SYMBOL (1,s); |
0f2d19dd JB |
711 | return SCM_SYMBOL_FUNC (s); |
712 | } | |
1bbd0b84 | 713 | #undef FUNC_NAME |
0f2d19dd JB |
714 | |
715 | ||
3b3b36dd | 716 | SCM_DEFINE (scm_symbol_pref, "symbol-pref", 1, 0, 0, |
1bbd0b84 | 717 | (SCM s), |
b380b885 | 718 | "Return the @dfn{property list} currently associated with @var{symbol}.") |
1bbd0b84 | 719 | #define FUNC_NAME s_scm_symbol_pref |
0f2d19dd | 720 | { |
3b3b36dd | 721 | SCM_VALIDATE_SYMBOL (1,s); |
0f2d19dd JB |
722 | return SCM_SYMBOL_PROPS (s); |
723 | } | |
1bbd0b84 | 724 | #undef FUNC_NAME |
0f2d19dd JB |
725 | |
726 | ||
3b3b36dd | 727 | SCM_DEFINE (scm_symbol_fset_x, "symbol-fset!", 2, 0, 0, |
1bbd0b84 | 728 | (SCM s, SCM val), |
b380b885 | 729 | "Change the binding of @var{symbol}'s function slot.") |
1bbd0b84 | 730 | #define FUNC_NAME s_scm_symbol_fset_x |
0f2d19dd | 731 | { |
3b3b36dd | 732 | SCM_VALIDATE_SYMBOL (1,s); |
cf551a2b | 733 | SCM_SET_SYMBOL_FUNC (s, val); |
0f2d19dd JB |
734 | return SCM_UNSPECIFIED; |
735 | } | |
1bbd0b84 | 736 | #undef FUNC_NAME |
0f2d19dd JB |
737 | |
738 | ||
3b3b36dd | 739 | SCM_DEFINE (scm_symbol_pset_x, "symbol-pset!", 2, 0, 0, |
1bbd0b84 | 740 | (SCM s, SCM val), |
b380b885 | 741 | "Change the binding of @var{symbol}'s property slot.") |
1bbd0b84 | 742 | #define FUNC_NAME s_scm_symbol_pset_x |
0f2d19dd | 743 | { |
3b3b36dd | 744 | SCM_VALIDATE_SYMBOL (1,s); |
0f2d19dd | 745 | SCM_DEFER_INTS; |
cf551a2b | 746 | SCM_SET_SYMBOL_PROPS (s, val); |
0f2d19dd JB |
747 | SCM_ALLOW_INTS; |
748 | return SCM_UNSPECIFIED; | |
749 | } | |
1bbd0b84 | 750 | #undef FUNC_NAME |
0f2d19dd JB |
751 | |
752 | ||
3b3b36dd | 753 | SCM_DEFINE (scm_symbol_hash, "symbol-hash", 1, 0, 0, |
28b06554 DH |
754 | (SCM symbol), |
755 | "Return a hash value for @var{symbol}.") | |
1bbd0b84 | 756 | #define FUNC_NAME s_scm_symbol_hash |
0f2d19dd | 757 | { |
28b06554 DH |
758 | SCM_VALIDATE_SYMBOL (1, symbol); |
759 | return SCM_MAKINUM (SCM_SYMBOL_HASH (symbol)); | |
0f2d19dd | 760 | } |
1bbd0b84 | 761 | #undef FUNC_NAME |
0f2d19dd JB |
762 | |
763 | ||
b2530d66 | 764 | static void |
1bbd0b84 | 765 | copy_and_prune_obarray (SCM from, SCM to) |
b2530d66 MD |
766 | { |
767 | int i; | |
768 | int length = SCM_LENGTH (from); | |
769 | for (i = 0; i < length; ++i) | |
770 | { | |
771 | SCM head = SCM_VELTS (from)[i]; /* GC protection */ | |
772 | SCM ls = head; | |
773 | SCM res = SCM_EOL; | |
774 | SCM *lloc = &res; | |
775 | while (SCM_NIMP (ls)) | |
776 | { | |
777 | if (!SCM_UNBNDP (SCM_CDAR (ls))) | |
778 | { | |
779 | *lloc = scm_cons (SCM_CAR (ls), SCM_EOL); | |
780 | lloc = SCM_CDRLOC (*lloc); | |
781 | } | |
782 | ls = SCM_CDR (ls); | |
783 | } | |
784 | SCM_VELTS (to)[i] = res; | |
785 | } | |
786 | } | |
787 | ||
788 | ||
3b3b36dd | 789 | SCM_DEFINE (scm_builtin_bindings, "builtin-bindings", 0, 0, 0, |
5ffe9968 | 790 | (), |
b380b885 MD |
791 | "Create and return a copy of the global symbol table, removing all\n" |
792 | "unbound symbols.") | |
1bbd0b84 | 793 | #define FUNC_NAME s_scm_builtin_bindings |
b2530d66 MD |
794 | { |
795 | int length = SCM_LENGTH (scm_symhash); | |
a8741caa | 796 | SCM obarray = scm_make_vector (SCM_MAKINUM (length), SCM_EOL); |
b2530d66 MD |
797 | copy_and_prune_obarray (scm_symhash, obarray); |
798 | return obarray; | |
799 | } | |
1bbd0b84 | 800 | #undef FUNC_NAME |
b2530d66 MD |
801 | |
802 | ||
3b3b36dd | 803 | SCM_DEFINE (scm_builtin_weak_bindings, "builtin-weak-bindings", 0, 0, 0, |
5ffe9968 | 804 | (), |
b380b885 | 805 | "") |
1bbd0b84 | 806 | #define FUNC_NAME s_scm_builtin_weak_bindings |
b2530d66 MD |
807 | { |
808 | int length = SCM_LENGTH (scm_weak_symhash); | |
809 | SCM obarray = scm_make_doubly_weak_hash_table (SCM_MAKINUM (length)); | |
810 | copy_and_prune_obarray (scm_weak_symhash, obarray); | |
811 | return obarray; | |
812 | } | |
1bbd0b84 | 813 | #undef FUNC_NAME |
b2530d66 | 814 | |
e1313058 MD |
815 | #define MAX_PREFIX_LENGTH 30 |
816 | ||
1ff4df7a | 817 | static int gensym_counter; |
e1313058 MD |
818 | |
819 | SCM_DEFINE (scm_gensym, "gensym", 0, 1, 0, | |
820 | (SCM prefix), | |
821 | "Create a new symbol with name constructed from a prefix and a counter value.\n" | |
822 | "The string PREFIX can be specified as an optional argument.\n" | |
823 | "Default prefix is @code{g}. The counter is increased by 1 at each call.\n" | |
824 | "There is no provision for resetting the counter.") | |
1bbd0b84 | 825 | #define FUNC_NAME s_scm_gensym |
1ff4df7a | 826 | { |
e1313058 MD |
827 | char buf[MAX_PREFIX_LENGTH + SCM_INTBUFLEN]; |
828 | char *name = buf; | |
829 | int len; | |
830 | if (SCM_UNBNDP (prefix)) | |
831 | { | |
832 | name[0] = 'g'; | |
833 | len = 1; | |
834 | } | |
1ff4df7a | 835 | else |
c64d02c5 | 836 | { |
e1313058 MD |
837 | SCM_VALIDATE_STRINGORSUBSTR (1, prefix); |
838 | len = SCM_ROLENGTH (prefix); | |
839 | if (len > MAX_PREFIX_LENGTH) | |
840 | name = SCM_MUST_MALLOC (MAX_PREFIX_LENGTH + SCM_INTBUFLEN); | |
841 | strncpy (name, SCM_ROCHARS (prefix), len); | |
c64d02c5 | 842 | } |
e1313058 MD |
843 | { |
844 | int n_digits = scm_iint2str (gensym_counter++, 10, &name[len]); | |
845 | SCM res = SCM_CAR (scm_intern (name, len + n_digits)); | |
846 | if (name != buf) | |
847 | scm_must_free (name); | |
848 | return res; | |
849 | } | |
850 | } | |
851 | #undef FUNC_NAME | |
1bbd0b84 | 852 | |
e1313058 MD |
853 | static int gentemp_counter; |
854 | ||
855 | SCM_DEFINE (scm_gentemp, "gentemp", 0, 2, 0, | |
856 | (SCM prefix, SCM obarray), | |
857 | "Create a new symbol with a name unique in an obarray.\n" | |
858 | "The name is constructed from an optional string PREFIX and a counter\n" | |
859 | "value. The default prefix is @var{t}. The OBARRAY is specified as a\n" | |
860 | "second optional argument. Default is the system obarray where all\n" | |
861 | "normal symbols are interned. The counter is increased by 1 at each\n" | |
862 | "call. There is no provision for resetting the counter.") | |
863 | #define FUNC_NAME s_scm_gentemp | |
864 | { | |
865 | char buf[MAX_PREFIX_LENGTH + SCM_INTBUFLEN]; | |
866 | char *name = buf; | |
867 | int len, n_digits; | |
868 | if (SCM_UNBNDP (prefix)) | |
869 | { | |
870 | name[0] = 't'; | |
871 | len = 1; | |
872 | } | |
873 | else | |
1ff4df7a | 874 | { |
e1313058 MD |
875 | SCM_VALIDATE_STRINGORSUBSTR (1, prefix); |
876 | len = SCM_ROLENGTH (prefix); | |
877 | if (len > MAX_PREFIX_LENGTH) | |
878 | name = SCM_MUST_MALLOC (MAX_PREFIX_LENGTH + SCM_INTBUFLEN); | |
879 | strncpy (name, SCM_ROCHARS (prefix), len); | |
1ff4df7a | 880 | } |
e1313058 MD |
881 | |
882 | if (SCM_UNBNDP (obarray)) | |
883 | obarray = scm_symhash; | |
1ff4df7a | 884 | else |
368cf54d | 885 | SCM_ASSERT ((SCM_VECTORP (obarray) || SCM_WVECTP (obarray)), |
1ff4df7a MD |
886 | obarray, |
887 | SCM_ARG2, | |
1bbd0b84 | 888 | FUNC_NAME); |
e1313058 MD |
889 | do |
890 | n_digits = scm_iint2str (gentemp_counter++, 10, &name[len]); | |
891 | while (!SCM_FALSEP (scm_intern_obarray_soft (name, | |
892 | len + n_digits, | |
893 | obarray, | |
894 | 1))); | |
895 | { | |
896 | SCM vcell = scm_intern_obarray_soft (name, | |
897 | len + n_digits, | |
898 | obarray, | |
899 | 0); | |
900 | if (name != buf) | |
901 | scm_must_free (name); | |
902 | return SCM_CAR (vcell); | |
903 | } | |
1ff4df7a | 904 | } |
1bbd0b84 | 905 | #undef FUNC_NAME |
1cc91f1b | 906 | |
0f2d19dd JB |
907 | void |
908 | scm_init_symbols () | |
0f2d19dd | 909 | { |
1ff4df7a | 910 | gensym_counter = 0; |
e1313058 | 911 | gentemp_counter = 0; |
a0599745 | 912 | #include "libguile/symbols.x" |
0f2d19dd | 913 | } |
89e00824 ML |
914 | |
915 | /* | |
916 | Local Variables: | |
917 | c-file-style: "gnu" | |
918 | End: | |
919 | */ |