Commit | Line | Data |
---|---|---|
a7e392c1 | 1 | /* Copyright (C) 1995,1996,1998,2000,2001, 2004, 2006, 2008, 2009, 2010, 2011, 2012 Free Software Foundation, Inc. |
0f2d19dd | 2 | * |
73be1d9e | 3 | * This library is free software; you can redistribute it and/or |
53befeb7 NJ |
4 | * modify it under the terms of the GNU Lesser General Public License |
5 | * as published by the Free Software Foundation; either version 3 of | |
6 | * the License, or (at your option) any later version. | |
0f2d19dd | 7 | * |
53befeb7 NJ |
8 | * This library is distributed in the hope that it will be useful, but |
9 | * WITHOUT ANY WARRANTY; without even the implied warranty of | |
73be1d9e MV |
10 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
11 | * Lesser General Public License for more details. | |
0f2d19dd | 12 | * |
73be1d9e MV |
13 | * You should have received a copy of the GNU Lesser General Public |
14 | * License along with this library; if not, write to the Free Software | |
53befeb7 NJ |
15 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA |
16 | * 02110-1301 USA | |
73be1d9e | 17 | */ |
1bbd0b84 | 18 | |
1bbd0b84 | 19 | |
0f2d19dd | 20 | \f |
dbb605f5 LC |
21 | #ifdef HAVE_CONFIG_H |
22 | # include <config.h> | |
23 | #endif | |
0f2d19dd | 24 | |
cdd47ec7 | 25 | #include <alloca.h> |
faf2c9d7 | 26 | #include <string.h> |
3ee86942 | 27 | #include <stdio.h> |
9c44cd45 | 28 | #include <ctype.h> |
edb7bb47 | 29 | #include <uninorm.h> |
9c44cd45 | 30 | #include <unistr.h> |
eca29b02 | 31 | #include <uniconv.h> |
faf2c9d7 | 32 | |
889975e5 MG |
33 | #include "striconveh.h" |
34 | ||
a0599745 MD |
35 | #include "libguile/_scm.h" |
36 | #include "libguile/chars.h" | |
7c33806a | 37 | #include "libguile/root.h" |
a0599745 | 38 | #include "libguile/strings.h" |
a3d7d5d5 | 39 | #include "libguile/error.h" |
f45eccff | 40 | #include "libguile/generalized-vectors.h" |
1afff620 | 41 | #include "libguile/deprecation.h" |
a0599745 | 42 | #include "libguile/validate.h" |
d31b9519 | 43 | #include "libguile/private-options.h" |
1afff620 | 44 | |
0f2d19dd JB |
45 | \f |
46 | ||
47 | /* {Strings} | |
48 | */ | |
49 | ||
3ee86942 MV |
50 | |
51 | /* Stringbufs | |
52 | * | |
53 | * XXX - keeping an accurate refcount during GC seems to be quite | |
54 | * tricky, so we just keep score of whether a stringbuf might be | |
50b1996f | 55 | * shared, not whether it definitely is. |
3ee86942 MV |
56 | * |
57 | * The scheme I (mvo) tried to keep an accurate reference count would | |
58 | * recount all strings that point to a stringbuf during the mark-phase | |
59 | * of the GC. This was done since one cannot access the stringbuf of | |
60 | * a string when that string is freed (in order to decrease the | |
61 | * reference count). The memory of the stringbuf might have been | |
62 | * reused already for something completely different. | |
63 | * | |
64 | * This recounted worked for a small number of threads beating on | |
65 | * cow-strings, but it failed randomly with more than 10 threads, say. | |
66 | * I couldn't figure out what went wrong, so I used the conservative | |
67 | * approach implemented below. | |
50b1996f | 68 | * |
ba54a202 LC |
69 | * There are 2 storage strategies for stringbufs: 8-bit and wide. 8-bit |
70 | * strings are ISO-8859-1-encoded strings; wide strings are 32-bit (UCS-4) | |
71 | * strings. | |
3ee86942 MV |
72 | */ |
73 | ||
ba54a202 LC |
74 | /* The size in words of the stringbuf header (type tag + size). */ |
75 | #define STRINGBUF_HEADER_SIZE 2U | |
76 | ||
77 | #define STRINGBUF_HEADER_BYTES (STRINGBUF_HEADER_SIZE * sizeof (SCM)) | |
78 | ||
35920c00 | 79 | #define STRINGBUF_F_SHARED SCM_I_STRINGBUF_F_SHARED |
5f236208 | 80 | #define STRINGBUF_F_WIDE SCM_I_STRINGBUF_F_WIDE |
3ee86942 MV |
81 | |
82 | #define STRINGBUF_TAG scm_tc7_stringbuf | |
83 | #define STRINGBUF_SHARED(buf) (SCM_CELL_WORD_0(buf) & STRINGBUF_F_SHARED) | |
9c44cd45 | 84 | #define STRINGBUF_WIDE(buf) (SCM_CELL_WORD_0(buf) & STRINGBUF_F_WIDE) |
3ee86942 | 85 | |
100e20c7 | 86 | #define STRINGBUF_CONTENTS(buf) ((void *) \ |
ba54a202 LC |
87 | SCM_CELL_OBJECT_LOC (buf, \ |
88 | STRINGBUF_HEADER_SIZE)) | |
100e20c7 LC |
89 | #define STRINGBUF_CHARS(buf) ((unsigned char *) STRINGBUF_CONTENTS (buf)) |
90 | #define STRINGBUF_WIDE_CHARS(buf) ((scm_t_wchar *) STRINGBUF_CONTENTS (buf)) | |
3ee86942 | 91 | |
100e20c7 | 92 | #define STRINGBUF_LENGTH(buf) (SCM_CELL_WORD_1 (buf)) |
3ee86942 | 93 | |
9b41542f LC |
94 | #define SET_STRINGBUF_SHARED(buf) \ |
95 | do \ | |
96 | { \ | |
97 | /* Don't modify BUF if it's already marked as shared since it might be \ | |
98 | a read-only, statically allocated stringbuf. */ \ | |
99 | if (SCM_LIKELY (!STRINGBUF_SHARED (buf))) \ | |
100 | SCM_SET_CELL_WORD_0 ((buf), SCM_CELL_WORD_0 (buf) | STRINGBUF_F_SHARED); \ | |
101 | } \ | |
102 | while (0) | |
3ee86942 | 103 | |
56a3dcd4 | 104 | #ifdef SCM_STRING_LENGTH_HISTOGRAM |
3ee86942 MV |
105 | static size_t lenhist[1001]; |
106 | #endif | |
107 | ||
50b1996f MG |
108 | /* Make a stringbuf with space for LEN 8-bit Latin-1-encoded |
109 | characters. */ | |
3ee86942 MV |
110 | static SCM |
111 | make_stringbuf (size_t len) | |
0f2d19dd | 112 | { |
3ee86942 MV |
113 | /* XXX - for the benefit of SCM_STRING_CHARS, SCM_SYMBOL_CHARS and |
114 | scm_i_symbol_chars, all stringbufs are null-terminated. Once | |
115 | SCM_STRING_CHARS and SCM_SYMBOL_CHARS are removed and the code | |
116 | has been changed for scm_i_symbol_chars, this null-termination | |
117 | can be dropped. | |
118 | */ | |
119 | ||
ba54a202 LC |
120 | SCM buf; |
121 | ||
56a3dcd4 | 122 | #ifdef SCM_STRING_LENGTH_HISTOGRAM |
3ee86942 MV |
123 | if (len < 1000) |
124 | lenhist[len]++; | |
125 | else | |
126 | lenhist[1000]++; | |
127 | #endif | |
0f2d19dd | 128 | |
ba54a202 LC |
129 | buf = PTR2SCM (scm_gc_malloc_pointerless (STRINGBUF_HEADER_BYTES + len + 1, |
130 | "string")); | |
131 | ||
132 | SCM_SET_CELL_TYPE (buf, STRINGBUF_TAG); | |
133 | SCM_SET_CELL_WORD_1 (buf, (scm_t_bits) len); | |
134 | ||
135 | STRINGBUF_CHARS (buf)[len] = 0; | |
136 | ||
137 | return buf; | |
3ee86942 | 138 | } |
e53cc817 | 139 | |
50b1996f MG |
140 | /* Make a stringbuf with space for LEN 32-bit UCS-4-encoded |
141 | characters. */ | |
9c44cd45 MG |
142 | static SCM |
143 | make_wide_stringbuf (size_t len) | |
144 | { | |
ba54a202 LC |
145 | SCM buf; |
146 | size_t raw_len; | |
147 | ||
56a3dcd4 | 148 | #ifdef SCM_STRING_LENGTH_HISTOGRAM |
9c44cd45 MG |
149 | if (len < 1000) |
150 | lenhist[len]++; | |
151 | else | |
152 | lenhist[1000]++; | |
153 | #endif | |
154 | ||
ba54a202 LC |
155 | raw_len = (len + 1) * sizeof (scm_t_wchar); |
156 | buf = PTR2SCM (scm_gc_malloc_pointerless (STRINGBUF_HEADER_BYTES + raw_len, | |
157 | "string")); | |
158 | ||
159 | SCM_SET_CELL_TYPE (buf, STRINGBUF_TAG | STRINGBUF_F_WIDE); | |
160 | SCM_SET_CELL_WORD_1 (buf, (scm_t_bits) len); | |
161 | ||
162 | STRINGBUF_WIDE_CHARS (buf)[len] = 0; | |
163 | ||
164 | return buf; | |
9c44cd45 MG |
165 | } |
166 | ||
ba54a202 LC |
167 | /* Return a UCS-4-encoded stringbuf containing the (possibly Latin-1-encoded) |
168 | characters from BUF. */ | |
169 | static SCM | |
170 | wide_stringbuf (SCM buf) | |
9c44cd45 | 171 | { |
ba54a202 | 172 | SCM new_buf; |
9c44cd45 MG |
173 | |
174 | if (STRINGBUF_WIDE (buf)) | |
ba54a202 LC |
175 | new_buf = buf; |
176 | else | |
9c44cd45 | 177 | { |
ba54a202 LC |
178 | size_t i, len; |
179 | scm_t_wchar *mem; | |
9c44cd45 | 180 | |
ba54a202 | 181 | len = STRINGBUF_LENGTH (buf); |
9c44cd45 | 182 | |
ba54a202 | 183 | new_buf = make_wide_stringbuf (len); |
9c44cd45 | 184 | |
ba54a202 | 185 | mem = STRINGBUF_WIDE_CHARS (new_buf); |
9c44cd45 | 186 | for (i = 0; i < len; i++) |
ba54a202 | 187 | mem[i] = (scm_t_wchar) STRINGBUF_CHARS (buf)[i]; |
9c44cd45 | 188 | mem[len] = 0; |
9c44cd45 | 189 | } |
ba54a202 LC |
190 | |
191 | return new_buf; | |
3ee86942 | 192 | } |
bd9e24b3 | 193 | |
ba54a202 LC |
194 | /* Return a Latin-1-encoded stringbuf containing the (possibly UCS-4-encoded) |
195 | characters from BUF, if possible. */ | |
196 | static SCM | |
587a3355 MG |
197 | narrow_stringbuf (SCM buf) |
198 | { | |
ba54a202 | 199 | SCM new_buf; |
587a3355 MG |
200 | |
201 | if (!STRINGBUF_WIDE (buf)) | |
ba54a202 LC |
202 | new_buf = buf; |
203 | else | |
204 | { | |
205 | size_t i, len; | |
206 | scm_t_wchar *wmem; | |
207 | unsigned char *mem; | |
587a3355 | 208 | |
ba54a202 LC |
209 | len = STRINGBUF_LENGTH (buf); |
210 | wmem = STRINGBUF_WIDE_CHARS (buf); | |
587a3355 | 211 | |
ba54a202 LC |
212 | for (i = 0; i < len; i++) |
213 | if (wmem[i] > 0xFF) | |
214 | /* BUF cannot be narrowed. */ | |
215 | return buf; | |
587a3355 | 216 | |
ba54a202 | 217 | new_buf = make_stringbuf (len); |
587a3355 | 218 | |
ba54a202 LC |
219 | mem = STRINGBUF_CHARS (new_buf); |
220 | for (i = 0; i < len; i++) | |
221 | mem[i] = (unsigned char) wmem[i]; | |
222 | mem[len] = 0; | |
223 | } | |
224 | ||
225 | return new_buf; | |
587a3355 MG |
226 | } |
227 | ||
9de87eea | 228 | scm_i_pthread_mutex_t stringbuf_write_mutex = SCM_I_PTHREAD_MUTEX_INITIALIZER; |
bd9e24b3 | 229 | |
ba54a202 | 230 | \f |
3ee86942 MV |
231 | /* Copy-on-write strings. |
232 | */ | |
bd9e24b3 | 233 | |
3ee86942 | 234 | #define STRING_TAG scm_tc7_string |
bd9e24b3 | 235 | |
3ee86942 MV |
236 | #define STRING_STRINGBUF(str) (SCM_CELL_OBJECT_1(str)) |
237 | #define STRING_START(str) ((size_t)SCM_CELL_WORD_2(str)) | |
238 | #define STRING_LENGTH(str) ((size_t)SCM_CELL_WORD_3(str)) | |
bd9e24b3 | 239 | |
3ee86942 MV |
240 | #define SET_STRING_STRINGBUF(str,buf) (SCM_SET_CELL_OBJECT_1(str,buf)) |
241 | #define SET_STRING_START(str,start) (SCM_SET_CELL_WORD_2(str,start)) | |
242 | ||
243 | #define IS_STRING(str) (SCM_NIMP(str) && SCM_TYP7(str) == STRING_TAG) | |
244 | ||
ed35de72 MV |
245 | /* Read-only strings. |
246 | */ | |
247 | ||
35920c00 | 248 | #define RO_STRING_TAG scm_tc7_ro_string |
ed35de72 MV |
249 | #define IS_RO_STRING(str) (SCM_CELL_TYPE(str)==RO_STRING_TAG) |
250 | ||
e1b29f6a MV |
251 | /* Mutation-sharing substrings |
252 | */ | |
253 | ||
254 | #define SH_STRING_TAG (scm_tc7_string + 0x100) | |
255 | ||
256 | #define SH_STRING_STRING(sh) (SCM_CELL_OBJECT_1(sh)) | |
257 | /* START and LENGTH as for STRINGs. */ | |
258 | ||
259 | #define IS_SH_STRING(str) (SCM_CELL_TYPE(str)==SH_STRING_TAG) | |
260 | ||
e7efe8e7 AW |
261 | SCM scm_nullstr; |
262 | ||
60617d81 MW |
263 | static SCM null_stringbuf; |
264 | ||
265 | static void | |
266 | init_null_stringbuf (void) | |
267 | { | |
268 | null_stringbuf = make_stringbuf (0); | |
269 | SET_STRINGBUF_SHARED (null_stringbuf); | |
270 | } | |
271 | ||
50b1996f MG |
272 | /* Create a scheme string with space for LEN 8-bit Latin-1-encoded |
273 | characters. CHARSP, if not NULL, will be set to location of the | |
190d4b0d LC |
274 | char array. If READ_ONLY_P, the returned string is read-only; |
275 | otherwise it is writable. */ | |
3ee86942 | 276 | SCM |
190d4b0d | 277 | scm_i_make_string (size_t len, char **charsp, int read_only_p) |
3ee86942 | 278 | { |
69cd5299 | 279 | SCM buf; |
3ee86942 | 280 | SCM res; |
69cd5299 MW |
281 | |
282 | if (len == 0) | |
283 | { | |
60617d81 MW |
284 | static scm_i_pthread_once_t once = SCM_I_PTHREAD_ONCE_INIT; |
285 | scm_i_pthread_once (&once, init_null_stringbuf); | |
69cd5299 MW |
286 | buf = null_stringbuf; |
287 | } | |
288 | else | |
289 | buf = make_stringbuf (len); | |
290 | ||
3ee86942 | 291 | if (charsp) |
f59cf998 | 292 | *charsp = (char *) STRINGBUF_CHARS (buf); |
190d4b0d LC |
293 | res = scm_double_cell (read_only_p ? RO_STRING_TAG : STRING_TAG, |
294 | SCM_UNPACK (buf), | |
295 | (scm_t_bits) 0, (scm_t_bits) len); | |
3ee86942 | 296 | return res; |
0f2d19dd JB |
297 | } |
298 | ||
50b1996f MG |
299 | /* Create a scheme string with space for LEN 32-bit UCS-4-encoded |
300 | characters. CHARSP, if not NULL, will be set to location of the | |
190d4b0d LC |
301 | character array. If READ_ONLY_P, the returned string is read-only; |
302 | otherwise it is writable. */ | |
9c44cd45 | 303 | SCM |
190d4b0d | 304 | scm_i_make_wide_string (size_t len, scm_t_wchar **charsp, int read_only_p) |
9c44cd45 MG |
305 | { |
306 | SCM buf = make_wide_stringbuf (len); | |
307 | SCM res; | |
308 | if (charsp) | |
309 | *charsp = STRINGBUF_WIDE_CHARS (buf); | |
190d4b0d LC |
310 | res = scm_double_cell (read_only_p ? RO_STRING_TAG : STRING_TAG, |
311 | SCM_UNPACK (buf), | |
9c44cd45 MG |
312 | (scm_t_bits) 0, (scm_t_bits) len); |
313 | return res; | |
314 | } | |
315 | ||
3ee86942 MV |
316 | static void |
317 | validate_substring_args (SCM str, size_t start, size_t end) | |
318 | { | |
319 | if (!IS_STRING (str)) | |
320 | scm_wrong_type_arg_msg (NULL, 0, str, "string"); | |
321 | if (start > STRING_LENGTH (str)) | |
322 | scm_out_of_range (NULL, scm_from_size_t (start)); | |
323 | if (end > STRING_LENGTH (str) || end < start) | |
324 | scm_out_of_range (NULL, scm_from_size_t (end)); | |
325 | } | |
0f2d19dd | 326 | |
e1b29f6a MV |
327 | static inline void |
328 | get_str_buf_start (SCM *str, SCM *buf, size_t *start) | |
329 | { | |
330 | *start = STRING_START (*str); | |
331 | if (IS_SH_STRING (*str)) | |
332 | { | |
333 | *str = SH_STRING_STRING (*str); | |
334 | *start += STRING_START (*str); | |
335 | } | |
336 | *buf = STRING_STRINGBUF (*str); | |
337 | } | |
338 | ||
3ee86942 MV |
339 | SCM |
340 | scm_i_substring (SCM str, size_t start, size_t end) | |
0f2d19dd | 341 | { |
17bec545 MW |
342 | if (start == end) |
343 | return scm_i_make_string (0, NULL, 0); | |
344 | else | |
345 | { | |
346 | SCM buf; | |
347 | size_t str_start; | |
348 | get_str_buf_start (&str, &buf, &str_start); | |
349 | scm_i_pthread_mutex_lock (&stringbuf_write_mutex); | |
350 | SET_STRINGBUF_SHARED (buf); | |
351 | scm_i_pthread_mutex_unlock (&stringbuf_write_mutex); | |
352 | return scm_double_cell (STRING_TAG, SCM_UNPACK(buf), | |
353 | (scm_t_bits)str_start + start, | |
354 | (scm_t_bits) end - start); | |
355 | } | |
0f2d19dd JB |
356 | } |
357 | ||
ed35de72 MV |
358 | SCM |
359 | scm_i_substring_read_only (SCM str, size_t start, size_t end) | |
360 | { | |
17bec545 MW |
361 | if (start == end) |
362 | return scm_i_make_string (0, NULL, 1); | |
363 | else | |
364 | { | |
365 | SCM buf; | |
366 | size_t str_start; | |
367 | get_str_buf_start (&str, &buf, &str_start); | |
368 | scm_i_pthread_mutex_lock (&stringbuf_write_mutex); | |
369 | SET_STRINGBUF_SHARED (buf); | |
370 | scm_i_pthread_mutex_unlock (&stringbuf_write_mutex); | |
371 | return scm_double_cell (RO_STRING_TAG, SCM_UNPACK(buf), | |
372 | (scm_t_bits)str_start + start, | |
373 | (scm_t_bits) end - start); | |
374 | } | |
ed35de72 MV |
375 | } |
376 | ||
3ee86942 MV |
377 | SCM |
378 | scm_i_substring_copy (SCM str, size_t start, size_t end) | |
379 | { | |
d5b75b6c MW |
380 | if (start == end) |
381 | return scm_i_make_string (0, NULL, 0); | |
9c44cd45 MG |
382 | else |
383 | { | |
d5b75b6c MW |
384 | size_t len = end - start; |
385 | SCM buf, my_buf, substr; | |
386 | size_t str_start; | |
387 | int wide = 0; | |
388 | get_str_buf_start (&str, &buf, &str_start); | |
389 | if (scm_i_is_narrow_string (str)) | |
390 | { | |
391 | my_buf = make_stringbuf (len); | |
392 | memcpy (STRINGBUF_CHARS (my_buf), | |
393 | STRINGBUF_CHARS (buf) + str_start + start, len); | |
394 | } | |
395 | else | |
396 | { | |
397 | my_buf = make_wide_stringbuf (len); | |
398 | u32_cpy ((scm_t_uint32 *) STRINGBUF_WIDE_CHARS (my_buf), | |
399 | (scm_t_uint32 *) (STRINGBUF_WIDE_CHARS (buf) + str_start | |
400 | + start), len); | |
401 | wide = 1; | |
402 | } | |
403 | scm_remember_upto_here_1 (buf); | |
404 | substr = scm_double_cell (STRING_TAG, SCM_UNPACK (my_buf), | |
405 | (scm_t_bits) 0, (scm_t_bits) len); | |
406 | if (wide) | |
407 | scm_i_try_narrow_string (substr); | |
408 | return substr; | |
9c44cd45 | 409 | } |
3ee86942 | 410 | } |
0f2d19dd | 411 | |
e1b29f6a MV |
412 | SCM |
413 | scm_i_substring_shared (SCM str, size_t start, size_t end) | |
414 | { | |
415 | if (start == 0 && end == STRING_LENGTH (str)) | |
416 | return str; | |
17bec545 MW |
417 | else if (start == end) |
418 | return scm_i_make_string (0, NULL, 0); | |
419 | else | |
e1b29f6a MV |
420 | { |
421 | size_t len = end - start; | |
422 | if (IS_SH_STRING (str)) | |
423 | { | |
424 | start += STRING_START (str); | |
425 | str = SH_STRING_STRING (str); | |
426 | } | |
427 | return scm_double_cell (SH_STRING_TAG, SCM_UNPACK(str), | |
428 | (scm_t_bits)start, (scm_t_bits) len); | |
429 | } | |
430 | } | |
431 | ||
3ee86942 MV |
432 | SCM |
433 | scm_c_substring (SCM str, size_t start, size_t end) | |
434 | { | |
435 | validate_substring_args (str, start, end); | |
436 | return scm_i_substring (str, start, end); | |
437 | } | |
ee149d03 | 438 | |
ed35de72 MV |
439 | SCM |
440 | scm_c_substring_read_only (SCM str, size_t start, size_t end) | |
441 | { | |
442 | validate_substring_args (str, start, end); | |
443 | return scm_i_substring_read_only (str, start, end); | |
444 | } | |
445 | ||
0f2d19dd | 446 | SCM |
3ee86942 | 447 | scm_c_substring_copy (SCM str, size_t start, size_t end) |
0f2d19dd | 448 | { |
3ee86942 MV |
449 | validate_substring_args (str, start, end); |
450 | return scm_i_substring_copy (str, start, end); | |
451 | } | |
452 | ||
3ee86942 MV |
453 | SCM |
454 | scm_c_substring_shared (SCM str, size_t start, size_t end) | |
455 | { | |
456 | validate_substring_args (str, start, end); | |
457 | return scm_i_substring_shared (str, start, end); | |
458 | } | |
0f2d19dd | 459 | |
d6c74168 | 460 | \f |
3ee86942 MV |
461 | /* Internal accessors |
462 | */ | |
463 | ||
50b1996f MG |
464 | /* Returns the number of characters in STR. This may be different |
465 | than the memory size of the string storage. */ | |
3ee86942 MV |
466 | size_t |
467 | scm_i_string_length (SCM str) | |
0f2d19dd | 468 | { |
3ee86942 | 469 | return STRING_LENGTH (str); |
0f2d19dd JB |
470 | } |
471 | ||
50b1996f MG |
472 | /* True if the string is 'narrow', meaning it has a 8-bit Latin-1 |
473 | encoding. False if it is 'wide', having a 32-bit UCS-4 | |
474 | encoding. */ | |
9c44cd45 MG |
475 | int |
476 | scm_i_is_narrow_string (SCM str) | |
477 | { | |
49d09292 MW |
478 | if (IS_SH_STRING (str)) |
479 | str = SH_STRING_STRING (str); | |
480 | ||
9c44cd45 MG |
481 | return !STRINGBUF_WIDE (STRING_STRINGBUF (str)); |
482 | } | |
483 | ||
587a3355 MG |
484 | /* Try to coerce a string to be narrow. It if is narrow already, do |
485 | nothing. If it is wide, shrink it to narrow if none of its | |
486 | characters are above 0xFF. Return true if the string is narrow or | |
487 | was made to be narrow. */ | |
488 | int | |
489 | scm_i_try_narrow_string (SCM str) | |
490 | { | |
49d09292 MW |
491 | if (IS_SH_STRING (str)) |
492 | str = SH_STRING_STRING (str); | |
493 | ||
ba54a202 | 494 | SET_STRING_STRINGBUF (str, narrow_stringbuf (STRING_STRINGBUF (str))); |
587a3355 MG |
495 | |
496 | return scm_i_is_narrow_string (str); | |
497 | } | |
498 | ||
100e20c7 LC |
499 | /* Return a pointer to the raw data of the string, which can be either Latin-1 |
500 | or UCS-4 encoded data, depending on `scm_i_is_narrow_string (STR)'. */ | |
501 | const void * | |
502 | scm_i_string_data (SCM str) | |
503 | { | |
504 | SCM buf; | |
505 | size_t start; | |
506 | const char *data; | |
507 | ||
508 | get_str_buf_start (&str, &buf, &start); | |
509 | ||
510 | data = STRINGBUF_CONTENTS (buf); | |
511 | data += start * (scm_i_is_narrow_string (str) ? 1 : 4); | |
512 | ||
513 | return data; | |
514 | } | |
515 | ||
50b1996f MG |
516 | /* Returns a pointer to the 8-bit Latin-1 encoded character array of |
517 | STR. */ | |
3ee86942 MV |
518 | const char * |
519 | scm_i_string_chars (SCM str) | |
520 | { | |
521 | SCM buf; | |
e1b29f6a MV |
522 | size_t start; |
523 | get_str_buf_start (&str, &buf, &start); | |
9c44cd45 | 524 | if (scm_i_is_narrow_string (str)) |
f59cf998 | 525 | return (const char *) STRINGBUF_CHARS (buf) + start; |
9c44cd45 MG |
526 | else |
527 | scm_misc_error (NULL, "Invalid read access of chars of wide string: ~s", | |
528 | scm_list_1 (str)); | |
529 | return NULL; | |
3ee86942 | 530 | } |
b00418df | 531 | |
50b1996f MG |
532 | /* Returns a pointer to the 32-bit UCS-4 encoded character array of |
533 | STR. */ | |
9c44cd45 MG |
534 | const scm_t_wchar * |
535 | scm_i_string_wide_chars (SCM str) | |
536 | { | |
537 | SCM buf; | |
538 | size_t start; | |
539 | ||
540 | get_str_buf_start (&str, &buf, &start); | |
541 | if (!scm_i_is_narrow_string (str)) | |
f59cf998 | 542 | return (const scm_t_wchar *) STRINGBUF_WIDE_CHARS (buf) + start; |
9c44cd45 MG |
543 | else |
544 | scm_misc_error (NULL, "Invalid read access of chars of narrow string: ~s", | |
545 | scm_list_1 (str)); | |
546 | } | |
547 | ||
548 | /* If the buffer in ORIG_STR is shared, copy ORIG_STR's characters to | |
549 | a new string buffer, so that it can be modified without modifying | |
50b1996f MG |
550 | other strings. Also, lock the string mutex. Later, one must call |
551 | scm_i_string_stop_writing to unlock the mutex. */ | |
9c44cd45 MG |
552 | SCM |
553 | scm_i_string_start_writing (SCM orig_str) | |
b00418df | 554 | { |
ed35de72 | 555 | SCM buf, str = orig_str; |
e1b29f6a | 556 | size_t start; |
ed35de72 | 557 | |
e1b29f6a | 558 | get_str_buf_start (&str, &buf, &start); |
ed35de72 MV |
559 | if (IS_RO_STRING (str)) |
560 | scm_misc_error (NULL, "string is read-only: ~s", scm_list_1 (orig_str)); | |
561 | ||
9de87eea | 562 | scm_i_pthread_mutex_lock (&stringbuf_write_mutex); |
3ee86942 MV |
563 | if (STRINGBUF_SHARED (buf)) |
564 | { | |
9c44cd45 | 565 | /* Clone the stringbuf. */ |
3ee86942 MV |
566 | size_t len = STRING_LENGTH (str); |
567 | SCM new_buf; | |
568 | ||
9de87eea | 569 | scm_i_pthread_mutex_unlock (&stringbuf_write_mutex); |
3ee86942 | 570 | |
9c44cd45 MG |
571 | if (scm_i_is_narrow_string (str)) |
572 | { | |
573 | new_buf = make_stringbuf (len); | |
574 | memcpy (STRINGBUF_CHARS (new_buf), | |
575 | STRINGBUF_CHARS (buf) + STRING_START (str), len); | |
576 | ||
577 | } | |
578 | else | |
579 | { | |
580 | new_buf = make_wide_stringbuf (len); | |
581 | u32_cpy ((scm_t_uint32 *) STRINGBUF_WIDE_CHARS (new_buf), | |
582 | (scm_t_uint32 *) (STRINGBUF_WIDE_CHARS (buf) | |
583 | + STRING_START (str)), len); | |
584 | } | |
3ee86942 | 585 | |
3ee86942 MV |
586 | SET_STRING_STRINGBUF (str, new_buf); |
587 | start -= STRING_START (str); | |
902578f1 LC |
588 | |
589 | /* FIXME: The following operations are not atomic, so other threads | |
590 | looking at STR may see an inconsistent state. Nevertheless it can't | |
591 | hurt much since (i) accessing STR while it is being mutated can't | |
592 | yield a crash, and (ii) concurrent accesses to STR should be | |
593 | protected by a mutex at the application level. The latter may not | |
594 | apply when STR != ORIG_STR, though. */ | |
3ee86942 | 595 | SET_STRING_START (str, 0); |
902578f1 | 596 | SET_STRING_STRINGBUF (str, new_buf); |
3ee86942 MV |
597 | |
598 | buf = new_buf; | |
599 | ||
9de87eea | 600 | scm_i_pthread_mutex_lock (&stringbuf_write_mutex); |
3ee86942 | 601 | } |
9c44cd45 MG |
602 | return orig_str; |
603 | } | |
3ee86942 | 604 | |
50b1996f | 605 | /* Return a pointer to the 8-bit Latin-1 chars of a string. */ |
9c44cd45 MG |
606 | char * |
607 | scm_i_string_writable_chars (SCM str) | |
608 | { | |
609 | SCM buf; | |
610 | size_t start; | |
3ee86942 | 611 | |
9c44cd45 MG |
612 | get_str_buf_start (&str, &buf, &start); |
613 | if (scm_i_is_narrow_string (str)) | |
f59cf998 | 614 | return (char *) STRINGBUF_CHARS (buf) + start; |
9c44cd45 MG |
615 | else |
616 | scm_misc_error (NULL, "Invalid write access of chars of wide string: ~s", | |
617 | scm_list_1 (str)); | |
618 | return NULL; | |
b00418df DH |
619 | } |
620 | ||
50b1996f | 621 | /* Return a pointer to the UCS-4 codepoints of a string. */ |
9c44cd45 MG |
622 | static scm_t_wchar * |
623 | scm_i_string_writable_wide_chars (SCM str) | |
624 | { | |
625 | SCM buf; | |
626 | size_t start; | |
627 | ||
628 | get_str_buf_start (&str, &buf, &start); | |
629 | if (!scm_i_is_narrow_string (str)) | |
630 | return STRINGBUF_WIDE_CHARS (buf) + start; | |
631 | else | |
1c7b216f | 632 | scm_misc_error (NULL, "Invalid write access of chars of narrow string: ~s", |
9c44cd45 | 633 | scm_list_1 (str)); |
b00418df DH |
634 | } |
635 | ||
50b1996f MG |
636 | /* Unlock the string mutex that was locked when |
637 | scm_i_string_start_writing was called. */ | |
3ee86942 MV |
638 | void |
639 | scm_i_string_stop_writing (void) | |
640 | { | |
9de87eea | 641 | scm_i_pthread_mutex_unlock (&stringbuf_write_mutex); |
3ee86942 | 642 | } |
b00418df | 643 | |
50b1996f | 644 | /* Return the Xth character of STR as a UCS-4 codepoint. */ |
9c44cd45 MG |
645 | scm_t_wchar |
646 | scm_i_string_ref (SCM str, size_t x) | |
647 | { | |
648 | if (scm_i_is_narrow_string (str)) | |
649 | return (scm_t_wchar) (unsigned char) (scm_i_string_chars (str)[x]); | |
650 | else | |
651 | return scm_i_string_wide_chars (str)[x]; | |
652 | } | |
653 | ||
889975e5 MG |
654 | /* Returns index+1 of the first char in STR that matches C, or |
655 | 0 if the char is not found. */ | |
656 | int | |
657 | scm_i_string_contains_char (SCM str, char ch) | |
658 | { | |
659 | size_t i; | |
660 | size_t len = scm_i_string_length (str); | |
661 | ||
662 | i = 0; | |
663 | if (scm_i_is_narrow_string (str)) | |
664 | { | |
665 | while (i < len) | |
666 | { | |
667 | if (scm_i_string_chars (str)[i] == ch) | |
668 | return i+1; | |
669 | i++; | |
670 | } | |
671 | } | |
672 | else | |
673 | { | |
674 | while (i < len) | |
675 | { | |
676 | if (scm_i_string_wide_chars (str)[i] | |
677 | == (unsigned char) ch) | |
678 | return i+1; | |
679 | i++; | |
680 | } | |
681 | } | |
682 | return 0; | |
683 | } | |
684 | ||
3f47e526 MG |
685 | int |
686 | scm_i_string_strcmp (SCM sstr, size_t start_x, const char *cstr) | |
687 | { | |
688 | if (scm_i_is_narrow_string (sstr)) | |
689 | { | |
690 | const char *a = scm_i_string_chars (sstr) + start_x; | |
691 | const char *b = cstr; | |
692 | return strncmp (a, b, strlen(b)); | |
693 | } | |
694 | else | |
695 | { | |
696 | size_t i; | |
697 | const scm_t_wchar *a = scm_i_string_wide_chars (sstr) + start_x; | |
698 | const char *b = cstr; | |
699 | for (i = 0; i < strlen (b); i++) | |
700 | { | |
701 | if (a[i] != (unsigned char) b[i]) | |
702 | return 1; | |
703 | } | |
704 | } | |
705 | return 0; | |
706 | } | |
707 | ||
50b1996f | 708 | /* Set the Pth character of STR to UCS-4 codepoint CHR. */ |
9c44cd45 MG |
709 | void |
710 | scm_i_string_set_x (SCM str, size_t p, scm_t_wchar chr) | |
711 | { | |
49d09292 MW |
712 | if (IS_SH_STRING (str)) |
713 | { | |
714 | p += STRING_START (str); | |
715 | str = SH_STRING_STRING (str); | |
716 | } | |
717 | ||
9c44cd45 | 718 | if (chr > 0xFF && scm_i_is_narrow_string (str)) |
ba54a202 | 719 | SET_STRING_STRINGBUF (str, wide_stringbuf (STRING_STRINGBUF (str))); |
9c44cd45 MG |
720 | |
721 | if (scm_i_is_narrow_string (str)) | |
722 | { | |
723 | char *dst = scm_i_string_writable_chars (str); | |
587a3355 | 724 | dst[p] = chr; |
9c44cd45 MG |
725 | } |
726 | else | |
727 | { | |
728 | scm_t_wchar *dst = scm_i_string_writable_wide_chars (str); | |
729 | dst[p] = chr; | |
730 | } | |
731 | } | |
732 | ||
ba54a202 | 733 | \f |
3ee86942 | 734 | /* Symbols. |
587a3355 | 735 | |
3ee86942 MV |
736 | Basic symbol creation and accessing is done here, the rest is in |
737 | symbols.[hc]. This has been done to keep stringbufs and the | |
738 | internals of strings and string-like objects confined to this file. | |
739 | */ | |
740 | ||
741 | #define SYMBOL_STRINGBUF SCM_CELL_OBJECT_1 | |
742 | ||
743 | SCM | |
6869328b MV |
744 | scm_i_make_symbol (SCM name, scm_t_bits flags, |
745 | unsigned long hash, SCM props) | |
3ee86942 MV |
746 | { |
747 | SCM buf; | |
748 | size_t start = STRING_START (name); | |
749 | size_t length = STRING_LENGTH (name); | |
750 | ||
751 | if (IS_SH_STRING (name)) | |
752 | { | |
753 | name = SH_STRING_STRING (name); | |
754 | start += STRING_START (name); | |
755 | } | |
1a4d7653 | 756 | buf = STRING_STRINGBUF (name); |
3ee86942 MV |
757 | |
758 | if (start == 0 && length == STRINGBUF_LENGTH (buf)) | |
759 | { | |
760 | /* reuse buf. */ | |
9de87eea | 761 | scm_i_pthread_mutex_lock (&stringbuf_write_mutex); |
3ee86942 | 762 | SET_STRINGBUF_SHARED (buf); |
9de87eea | 763 | scm_i_pthread_mutex_unlock (&stringbuf_write_mutex); |
3ee86942 MV |
764 | } |
765 | else | |
766 | { | |
767 | /* make new buf. */ | |
9c44cd45 MG |
768 | if (scm_i_is_narrow_string (name)) |
769 | { | |
770 | SCM new_buf = make_stringbuf (length); | |
771 | memcpy (STRINGBUF_CHARS (new_buf), | |
772 | STRINGBUF_CHARS (buf) + start, length); | |
773 | buf = new_buf; | |
774 | } | |
775 | else | |
776 | { | |
777 | SCM new_buf = make_wide_stringbuf (length); | |
778 | u32_cpy ((scm_t_uint32 *) STRINGBUF_WIDE_CHARS (new_buf), | |
779 | (scm_t_uint32 *) STRINGBUF_WIDE_CHARS (buf) + start, | |
780 | length); | |
781 | buf = new_buf; | |
782 | } | |
3ee86942 | 783 | } |
6869328b | 784 | return scm_double_cell (scm_tc7_symbol | flags, SCM_UNPACK (buf), |
3ee86942 MV |
785 | (scm_t_bits) hash, SCM_UNPACK (props)); |
786 | } | |
787 | ||
fd0a5bbc HWN |
788 | SCM |
789 | scm_i_c_make_symbol (const char *name, size_t len, | |
790 | scm_t_bits flags, unsigned long hash, SCM props) | |
791 | { | |
792 | SCM buf = make_stringbuf (len); | |
793 | memcpy (STRINGBUF_CHARS (buf), name, len); | |
794 | ||
65619ebe AW |
795 | return scm_double_cell (scm_tc7_symbol | flags, SCM_UNPACK (buf), |
796 | (scm_t_bits) hash, SCM_UNPACK (props)); | |
fd0a5bbc HWN |
797 | } |
798 | ||
50b1996f MG |
799 | /* Returns the number of characters in SYM. This may be different |
800 | from the memory size of SYM. */ | |
3ee86942 MV |
801 | size_t |
802 | scm_i_symbol_length (SCM sym) | |
0f2d19dd | 803 | { |
3ee86942 | 804 | return STRINGBUF_LENGTH (SYMBOL_STRINGBUF (sym)); |
0f2d19dd JB |
805 | } |
806 | ||
071bb6a8 LC |
807 | size_t |
808 | scm_c_symbol_length (SCM sym) | |
809 | #define FUNC_NAME "scm_c_symbol_length" | |
810 | { | |
811 | SCM_VALIDATE_SYMBOL (1, sym); | |
812 | ||
813 | return STRINGBUF_LENGTH (SYMBOL_STRINGBUF (sym)); | |
814 | } | |
815 | #undef FUNC_NAME | |
816 | ||
50b1996f MG |
817 | /* True if the name of SYM is stored as a Latin-1 encoded string. |
818 | False if it is stored as a 32-bit UCS-4-encoded string. */ | |
9c44cd45 MG |
819 | int |
820 | scm_i_is_narrow_symbol (SCM sym) | |
821 | { | |
822 | SCM buf; | |
823 | ||
824 | buf = SYMBOL_STRINGBUF (sym); | |
825 | return !STRINGBUF_WIDE (buf); | |
826 | } | |
827 | ||
50b1996f MG |
828 | /* Returns a pointer to the 8-bit Latin-1 encoded character array that |
829 | contains the name of SYM. */ | |
3ee86942 MV |
830 | const char * |
831 | scm_i_symbol_chars (SCM sym) | |
832 | { | |
9c44cd45 MG |
833 | SCM buf; |
834 | ||
835 | buf = SYMBOL_STRINGBUF (sym); | |
836 | if (!STRINGBUF_WIDE (buf)) | |
f59cf998 | 837 | return (const char *) STRINGBUF_CHARS (buf); |
9c44cd45 MG |
838 | else |
839 | scm_misc_error (NULL, "Invalid access of chars of a wide symbol ~S", | |
840 | scm_list_1 (sym)); | |
841 | } | |
842 | ||
50b1996f MG |
843 | /* Return a pointer to the 32-bit UCS-4-encoded character array of a |
844 | symbol's name. */ | |
9c44cd45 MG |
845 | const scm_t_wchar * |
846 | scm_i_symbol_wide_chars (SCM sym) | |
847 | { | |
848 | SCM buf; | |
849 | ||
850 | buf = SYMBOL_STRINGBUF (sym); | |
851 | if (STRINGBUF_WIDE (buf)) | |
f59cf998 | 852 | return (const scm_t_wchar *) STRINGBUF_WIDE_CHARS (buf); |
9c44cd45 MG |
853 | else |
854 | scm_misc_error (NULL, "Invalid access of chars of a narrow symbol ~S", | |
855 | scm_list_1 (sym)); | |
3ee86942 | 856 | } |
1cc91f1b | 857 | |
be54b15d | 858 | SCM |
3ee86942 | 859 | scm_i_symbol_substring (SCM sym, size_t start, size_t end) |
be54b15d | 860 | { |
3ee86942 | 861 | SCM buf = SYMBOL_STRINGBUF (sym); |
9de87eea | 862 | scm_i_pthread_mutex_lock (&stringbuf_write_mutex); |
3ee86942 | 863 | SET_STRINGBUF_SHARED (buf); |
9de87eea | 864 | scm_i_pthread_mutex_unlock (&stringbuf_write_mutex); |
fd2b17b9 | 865 | return scm_double_cell (RO_STRING_TAG, SCM_UNPACK (buf), |
3ee86942 MV |
866 | (scm_t_bits)start, (scm_t_bits) end - start); |
867 | } | |
be54b15d | 868 | |
50b1996f | 869 | /* Returns the Xth character of symbol SYM as a UCS-4 codepoint. */ |
9c44cd45 MG |
870 | scm_t_wchar |
871 | scm_i_symbol_ref (SCM sym, size_t x) | |
872 | { | |
873 | if (scm_i_is_narrow_symbol (sym)) | |
874 | return (scm_t_wchar) (unsigned char) (scm_i_symbol_chars (sym)[x]); | |
875 | else | |
876 | return scm_i_symbol_wide_chars (sym)[x]; | |
877 | } | |
878 | ||
3ee86942 MV |
879 | /* Debugging |
880 | */ | |
be54b15d | 881 | |
6ce6923b MG |
882 | SCM_DEFINE (scm_sys_string_dump, "%string-dump", 1, 0, 0, (SCM str), |
883 | "Returns an association list containing debugging information\n" | |
884 | "for @var{str}. The association list has the following entries." | |
885 | "@table @code\n" | |
886 | "@item string\n" | |
887 | "The string itself.\n" | |
888 | "@item start\n" | |
889 | "The start index of the string into its stringbuf\n" | |
890 | "@item length\n" | |
891 | "The length of the string\n" | |
892 | "@item shared\n" | |
893 | "If this string is a substring, it returns its parent string.\n" | |
894 | "Otherwise, it returns @code{#f}\n" | |
88ed5759 MG |
895 | "@item read-only\n" |
896 | "@code{#t} if the string is read-only\n" | |
6ce6923b MG |
897 | "@item stringbuf-chars\n" |
898 | "A new string containing this string's stringbuf's characters\n" | |
899 | "@item stringbuf-length\n" | |
900 | "The number of characters in this stringbuf\n" | |
901 | "@item stringbuf-shared\n" | |
902 | "@code{#t} if this stringbuf is shared\n" | |
6ce6923b MG |
903 | "@item stringbuf-wide\n" |
904 | "@code{#t} if this stringbuf's characters are stored in a\n" | |
905 | "32-bit buffer, or @code{#f} if they are stored in an 8-bit\n" | |
906 | "buffer\n" | |
907 | "@end table") | |
3ee86942 MV |
908 | #define FUNC_NAME s_scm_sys_string_dump |
909 | { | |
ba54a202 | 910 | SCM e1, e2, e3, e4, e5, e6, e7, e8, e9; |
6ce6923b | 911 | SCM buf; |
3ee86942 | 912 | SCM_VALIDATE_STRING (1, str); |
6ce6923b MG |
913 | |
914 | /* String info */ | |
4a655e50 | 915 | e1 = scm_cons (scm_from_latin1_symbol ("string"), |
6ce6923b | 916 | str); |
4a655e50 | 917 | e2 = scm_cons (scm_from_latin1_symbol ("start"), |
6ce6923b | 918 | scm_from_size_t (STRING_START (str))); |
4a655e50 | 919 | e3 = scm_cons (scm_from_latin1_symbol ("length"), |
6ce6923b MG |
920 | scm_from_size_t (STRING_LENGTH (str))); |
921 | ||
3ee86942 MV |
922 | if (IS_SH_STRING (str)) |
923 | { | |
4a655e50 | 924 | e4 = scm_cons (scm_from_latin1_symbol ("shared"), |
6ce6923b MG |
925 | SH_STRING_STRING (str)); |
926 | buf = STRING_STRINGBUF (SH_STRING_STRING (str)); | |
3ee86942 MV |
927 | } |
928 | else | |
929 | { | |
4a655e50 | 930 | e4 = scm_cons (scm_from_latin1_symbol ("shared"), |
6ce6923b MG |
931 | SCM_BOOL_F); |
932 | buf = STRING_STRINGBUF (str); | |
3ee86942 | 933 | } |
9c44cd45 | 934 | |
88ed5759 | 935 | if (IS_RO_STRING (str)) |
4a655e50 | 936 | e5 = scm_cons (scm_from_latin1_symbol ("read-only"), |
88ed5759 MG |
937 | SCM_BOOL_T); |
938 | else | |
4a655e50 | 939 | e5 = scm_cons (scm_from_latin1_symbol ("read-only"), |
88ed5759 | 940 | SCM_BOOL_F); |
587a3355 | 941 | |
6ce6923b | 942 | /* Stringbuf info */ |
6ce6923b MG |
943 | if (!STRINGBUF_WIDE (buf)) |
944 | { | |
945 | size_t len = STRINGBUF_LENGTH (buf); | |
946 | char *cbuf; | |
190d4b0d | 947 | SCM sbc = scm_i_make_string (len, &cbuf, 0); |
6ce6923b | 948 | memcpy (cbuf, STRINGBUF_CHARS (buf), len); |
4a655e50 | 949 | e6 = scm_cons (scm_from_latin1_symbol ("stringbuf-chars"), |
6ce6923b | 950 | sbc); |
3ee86942 | 951 | } |
6ce6923b MG |
952 | else |
953 | { | |
954 | size_t len = STRINGBUF_LENGTH (buf); | |
955 | scm_t_wchar *cbuf; | |
190d4b0d | 956 | SCM sbc = scm_i_make_wide_string (len, &cbuf, 0); |
6ce6923b MG |
957 | u32_cpy ((scm_t_uint32 *) cbuf, |
958 | (scm_t_uint32 *) STRINGBUF_WIDE_CHARS (buf), len); | |
4a655e50 | 959 | e6 = scm_cons (scm_from_latin1_symbol ("stringbuf-chars"), |
6ce6923b MG |
960 | sbc); |
961 | } | |
4a655e50 | 962 | e7 = scm_cons (scm_from_latin1_symbol ("stringbuf-length"), |
6ce6923b MG |
963 | scm_from_size_t (STRINGBUF_LENGTH (buf))); |
964 | if (STRINGBUF_SHARED (buf)) | |
4a655e50 | 965 | e8 = scm_cons (scm_from_latin1_symbol ("stringbuf-shared"), |
6ce6923b MG |
966 | SCM_BOOL_T); |
967 | else | |
4a655e50 | 968 | e8 = scm_cons (scm_from_latin1_symbol ("stringbuf-shared"), |
6ce6923b | 969 | SCM_BOOL_F); |
6ce6923b | 970 | if (STRINGBUF_WIDE (buf)) |
4a655e50 | 971 | e9 = scm_cons (scm_from_latin1_symbol ("stringbuf-wide"), |
ba54a202 | 972 | SCM_BOOL_T); |
6ce6923b | 973 | else |
4a655e50 | 974 | e9 = scm_cons (scm_from_latin1_symbol ("stringbuf-wide"), |
ba54a202 | 975 | SCM_BOOL_F); |
6ce6923b | 976 | |
ba54a202 | 977 | return scm_list_n (e1, e2, e3, e4, e5, e6, e7, e8, e9, SCM_UNDEFINED); |
3ee86942 MV |
978 | } |
979 | #undef FUNC_NAME | |
980 | ||
6ce6923b MG |
981 | SCM_DEFINE (scm_sys_symbol_dump, "%symbol-dump", 1, 0, 0, (SCM sym), |
982 | "Returns an association list containing debugging information\n" | |
983 | "for @var{sym}. The association list has the following entries." | |
984 | "@table @code\n" | |
985 | "@item symbol\n" | |
986 | "The symbol itself\n" | |
987 | "@item hash\n" | |
988 | "Its hash value\n" | |
88ed5759 MG |
989 | "@item interned\n" |
990 | "@code{#t} if it is an interned symbol\n" | |
6ce6923b MG |
991 | "@item stringbuf-chars\n" |
992 | "A new string containing this symbols's stringbuf's characters\n" | |
993 | "@item stringbuf-length\n" | |
994 | "The number of characters in this stringbuf\n" | |
995 | "@item stringbuf-shared\n" | |
996 | "@code{#t} if this stringbuf is shared\n" | |
6ce6923b MG |
997 | "@item stringbuf-wide\n" |
998 | "@code{#t} if this stringbuf's characters are stored in a\n" | |
999 | "32-bit buffer, or @code{#f} if they are stored in an 8-bit\n" | |
1000 | "buffer\n" | |
1001 | "@end table") | |
3ee86942 MV |
1002 | #define FUNC_NAME s_scm_sys_symbol_dump |
1003 | { | |
ba54a202 | 1004 | SCM e1, e2, e3, e4, e5, e6, e7; |
6ce6923b | 1005 | SCM buf; |
3ee86942 | 1006 | SCM_VALIDATE_SYMBOL (1, sym); |
4a655e50 | 1007 | e1 = scm_cons (scm_from_latin1_symbol ("symbol"), |
6ce6923b | 1008 | sym); |
4a655e50 | 1009 | e2 = scm_cons (scm_from_latin1_symbol ("hash"), |
6ce6923b | 1010 | scm_from_ulong (scm_i_symbol_hash (sym))); |
4a655e50 | 1011 | e3 = scm_cons (scm_from_latin1_symbol ("interned"), |
88ed5759 | 1012 | scm_symbol_interned_p (sym)); |
6ce6923b MG |
1013 | buf = SYMBOL_STRINGBUF (sym); |
1014 | ||
1015 | /* Stringbuf info */ | |
6ce6923b MG |
1016 | if (!STRINGBUF_WIDE (buf)) |
1017 | { | |
1018 | size_t len = STRINGBUF_LENGTH (buf); | |
1019 | char *cbuf; | |
190d4b0d | 1020 | SCM sbc = scm_i_make_string (len, &cbuf, 0); |
6ce6923b | 1021 | memcpy (cbuf, STRINGBUF_CHARS (buf), len); |
4a655e50 | 1022 | e4 = scm_cons (scm_from_latin1_symbol ("stringbuf-chars"), |
6ce6923b MG |
1023 | sbc); |
1024 | } | |
9c44cd45 | 1025 | else |
6ce6923b MG |
1026 | { |
1027 | size_t len = STRINGBUF_LENGTH (buf); | |
1028 | scm_t_wchar *cbuf; | |
190d4b0d | 1029 | SCM sbc = scm_i_make_wide_string (len, &cbuf, 0); |
6ce6923b MG |
1030 | u32_cpy ((scm_t_uint32 *) cbuf, |
1031 | (scm_t_uint32 *) STRINGBUF_WIDE_CHARS (buf), len); | |
4a655e50 | 1032 | e4 = scm_cons (scm_from_latin1_symbol ("stringbuf-chars"), |
6ce6923b MG |
1033 | sbc); |
1034 | } | |
4a655e50 | 1035 | e5 = scm_cons (scm_from_latin1_symbol ("stringbuf-length"), |
6ce6923b MG |
1036 | scm_from_size_t (STRINGBUF_LENGTH (buf))); |
1037 | if (STRINGBUF_SHARED (buf)) | |
4a655e50 | 1038 | e6 = scm_cons (scm_from_latin1_symbol ("stringbuf-shared"), |
6ce6923b MG |
1039 | SCM_BOOL_T); |
1040 | else | |
4a655e50 | 1041 | e6 = scm_cons (scm_from_latin1_symbol ("stringbuf-shared"), |
6ce6923b | 1042 | SCM_BOOL_F); |
6ce6923b | 1043 | if (STRINGBUF_WIDE (buf)) |
4a655e50 | 1044 | e7 = scm_cons (scm_from_latin1_symbol ("stringbuf-wide"), |
6ce6923b MG |
1045 | SCM_BOOL_T); |
1046 | else | |
4a655e50 | 1047 | e7 = scm_cons (scm_from_latin1_symbol ("stringbuf-wide"), |
6ce6923b | 1048 | SCM_BOOL_F); |
ba54a202 | 1049 | return scm_list_n (e1, e2, e3, e4, e5, e6, e7, SCM_UNDEFINED); |
6ce6923b | 1050 | |
3ee86942 MV |
1051 | } |
1052 | #undef FUNC_NAME | |
1053 | ||
56a3dcd4 | 1054 | #ifdef SCM_STRING_LENGTH_HISTOGRAM |
6ce6923b | 1055 | |
9c44cd45 | 1056 | SCM_DEFINE (scm_sys_stringbuf_hist, "%stringbuf-hist", 0, 0, 0, (void), "") |
e1b29f6a | 1057 | #define FUNC_NAME s_scm_sys_stringbuf_hist |
3ee86942 MV |
1058 | { |
1059 | int i; | |
1060 | for (i = 0; i < 1000; i++) | |
1061 | if (lenhist[i]) | |
1062 | fprintf (stderr, " %3d: %u\n", i, lenhist[i]); | |
1063 | fprintf (stderr, ">999: %u\n", lenhist[1000]); | |
1064 | return SCM_UNSPECIFIED; | |
be54b15d DH |
1065 | } |
1066 | #undef FUNC_NAME | |
1067 | ||
3ee86942 MV |
1068 | #endif |
1069 | ||
1070 | \f | |
1071 | ||
1072 | SCM_DEFINE (scm_string_p, "string?", 1, 0, 0, | |
1073 | (SCM obj), | |
1074 | "Return @code{#t} if @var{obj} is a string, else @code{#f}.") | |
1075 | #define FUNC_NAME s_scm_string_p | |
1076 | { | |
1077 | return scm_from_bool (IS_STRING (obj)); | |
1078 | } | |
1079 | #undef FUNC_NAME | |
1080 | ||
1081 | ||
1082 | SCM_REGISTER_PROC (s_scm_list_to_string, "list->string", 1, 0, 0, scm_string); | |
1083 | ||
1084 | SCM_DEFINE (scm_string, "string", 0, 0, 1, | |
1085 | (SCM chrs), | |
1086 | "@deffnx {Scheme Procedure} list->string chrs\n" | |
1087 | "Return a newly allocated string composed of the arguments,\n" | |
1088 | "@var{chrs}.") | |
1089 | #define FUNC_NAME s_scm_string | |
1090 | { | |
9aa27c1a | 1091 | SCM result = SCM_BOOL_F; |
9c44cd45 | 1092 | SCM rest; |
3ee86942 | 1093 | size_t len; |
9c44cd45 MG |
1094 | size_t p = 0; |
1095 | long i; | |
9aa27c1a | 1096 | int wide = 0; |
3ee86942 | 1097 | |
9c44cd45 MG |
1098 | /* Verify that this is a list of chars. */ |
1099 | i = scm_ilength (chrs); | |
3c7cf7f5 | 1100 | SCM_ASSERT (i >= 0, chrs, SCM_ARG1, FUNC_NAME); |
3ee86942 | 1101 | |
9c44cd45 MG |
1102 | len = (size_t) i; |
1103 | rest = chrs; | |
3ee86942 | 1104 | |
9c44cd45 | 1105 | while (len > 0 && scm_is_pair (rest)) |
3ee86942 | 1106 | { |
9c44cd45 | 1107 | SCM elt = SCM_CAR (rest); |
3ee86942 | 1108 | SCM_VALIDATE_CHAR (SCM_ARGn, elt); |
9aa27c1a MG |
1109 | if (SCM_CHAR (elt) > 0xFF) |
1110 | wide = 1; | |
9c44cd45 MG |
1111 | rest = SCM_CDR (rest); |
1112 | len--; | |
1113 | scm_remember_upto_here_1 (elt); | |
1114 | } | |
1115 | ||
1116 | /* Construct a string containing this list of chars. */ | |
1117 | len = (size_t) i; | |
1118 | rest = chrs; | |
1119 | ||
9aa27c1a | 1120 | if (wide == 0) |
9c44cd45 | 1121 | { |
56a3dcd4 LC |
1122 | char *buf; |
1123 | ||
190d4b0d | 1124 | result = scm_i_make_string (len, NULL, 0); |
9aa27c1a | 1125 | result = scm_i_string_start_writing (result); |
56a3dcd4 | 1126 | buf = scm_i_string_writable_chars (result); |
9aa27c1a MG |
1127 | while (len > 0 && scm_is_pair (rest)) |
1128 | { | |
1129 | SCM elt = SCM_CAR (rest); | |
1130 | buf[p] = (unsigned char) SCM_CHAR (elt); | |
1131 | p++; | |
1132 | rest = SCM_CDR (rest); | |
1133 | len--; | |
1134 | scm_remember_upto_here_1 (elt); | |
1135 | } | |
1136 | } | |
1137 | else | |
1138 | { | |
56a3dcd4 LC |
1139 | scm_t_wchar *buf; |
1140 | ||
190d4b0d | 1141 | result = scm_i_make_wide_string (len, NULL, 0); |
9aa27c1a | 1142 | result = scm_i_string_start_writing (result); |
56a3dcd4 | 1143 | buf = scm_i_string_writable_wide_chars (result); |
9aa27c1a MG |
1144 | while (len > 0 && scm_is_pair (rest)) |
1145 | { | |
1146 | SCM elt = SCM_CAR (rest); | |
1147 | buf[p] = SCM_CHAR (elt); | |
1148 | p++; | |
1149 | rest = SCM_CDR (rest); | |
1150 | len--; | |
1151 | scm_remember_upto_here_1 (elt); | |
1152 | } | |
3ee86942 | 1153 | } |
9c44cd45 MG |
1154 | scm_i_string_stop_writing (); |
1155 | ||
3ee86942 MV |
1156 | if (len > 0) |
1157 | scm_misc_error (NULL, "list changed while constructing string", SCM_EOL); | |
9c44cd45 | 1158 | if (!scm_is_null (rest)) |
3ee86942 MV |
1159 | scm_wrong_type_arg_msg (NULL, 0, chrs, "proper list"); |
1160 | ||
1161 | return result; | |
1162 | } | |
1163 | #undef FUNC_NAME | |
be54b15d | 1164 | |
3b3b36dd | 1165 | SCM_DEFINE (scm_make_string, "make-string", 1, 1, 0, |
6fa73e72 | 1166 | (SCM k, SCM chr), |
0d26a824 MG |
1167 | "Return a newly allocated string of\n" |
1168 | "length @var{k}. If @var{chr} is given, then all elements of\n" | |
1169 | "the string are initialized to @var{chr}, otherwise the contents\n" | |
b7e64f8b | 1170 | "of the string are all set to @code{#\nul}.") |
1bbd0b84 | 1171 | #define FUNC_NAME s_scm_make_string |
0f2d19dd | 1172 | { |
3ee86942 MV |
1173 | return scm_c_make_string (scm_to_size_t (k), chr); |
1174 | } | |
1175 | #undef FUNC_NAME | |
1176 | ||
1177 | SCM | |
1178 | scm_c_make_string (size_t len, SCM chr) | |
1179 | #define FUNC_NAME NULL | |
1180 | { | |
9c44cd45 | 1181 | size_t p; |
3ef6650d | 1182 | char *contents = NULL; |
190d4b0d | 1183 | SCM res = scm_i_make_string (len, &contents, 0); |
cb0d8be2 | 1184 | |
3ef6650d AW |
1185 | /* If no char is given, initialize string contents to NULL. */ |
1186 | if (SCM_UNBNDP (chr)) | |
1187 | memset (contents, 0, len); | |
1188 | else | |
e11e83f3 | 1189 | { |
3ee86942 | 1190 | SCM_VALIDATE_CHAR (0, chr); |
9c44cd45 MG |
1191 | res = scm_i_string_start_writing (res); |
1192 | for (p = 0; p < len; p++) | |
1193 | scm_i_string_set_x (res, p, SCM_CHAR (chr)); | |
1194 | scm_i_string_stop_writing (); | |
0f2d19dd | 1195 | } |
e11e83f3 MV |
1196 | |
1197 | return res; | |
0f2d19dd | 1198 | } |
1bbd0b84 | 1199 | #undef FUNC_NAME |
0f2d19dd | 1200 | |
3b3b36dd | 1201 | SCM_DEFINE (scm_string_length, "string-length", 1, 0, 0, |
0d26a824 MG |
1202 | (SCM string), |
1203 | "Return the number of characters in @var{string}.") | |
1bbd0b84 | 1204 | #define FUNC_NAME s_scm_string_length |
0f2d19dd | 1205 | { |
d1ca2c64 | 1206 | SCM_VALIDATE_STRING (1, string); |
3ee86942 | 1207 | return scm_from_size_t (STRING_LENGTH (string)); |
0f2d19dd | 1208 | } |
1bbd0b84 | 1209 | #undef FUNC_NAME |
0f2d19dd | 1210 | |
f8ba2bb9 | 1211 | SCM_DEFINE (scm_string_bytes_per_char, "string-bytes-per-char", 1, 0, 0, |
9c44cd45 MG |
1212 | (SCM string), |
1213 | "Return the bytes used to represent a character in @var{string}." | |
1214 | "This will return 1 or 4.") | |
f8ba2bb9 | 1215 | #define FUNC_NAME s_scm_string_bytes_per_char |
9c44cd45 MG |
1216 | { |
1217 | SCM_VALIDATE_STRING (1, string); | |
1218 | if (!scm_i_is_narrow_string (string)) | |
1219 | return scm_from_int (4); | |
1220 | ||
1221 | return scm_from_int (1); | |
1222 | } | |
1223 | #undef FUNC_NAME | |
1224 | ||
3ee86942 MV |
1225 | size_t |
1226 | scm_c_string_length (SCM string) | |
1227 | { | |
1228 | if (!IS_STRING (string)) | |
1229 | scm_wrong_type_arg_msg (NULL, 0, string, "string"); | |
1230 | return STRING_LENGTH (string); | |
1231 | } | |
1232 | ||
bd9e24b3 | 1233 | SCM_DEFINE (scm_string_ref, "string-ref", 2, 0, 0, |
6fa73e72 | 1234 | (SCM str, SCM k), |
9c44cd45 MG |
1235 | "Return character @var{k} of @var{str} using zero-origin\n" |
1236 | "indexing. @var{k} must be a valid index of @var{str}.") | |
1bbd0b84 | 1237 | #define FUNC_NAME s_scm_string_ref |
0f2d19dd | 1238 | { |
3ae3166b | 1239 | size_t len; |
a55c2b68 | 1240 | unsigned long idx; |
bd9e24b3 | 1241 | |
d1ca2c64 | 1242 | SCM_VALIDATE_STRING (1, str); |
3ae3166b LC |
1243 | |
1244 | len = scm_i_string_length (str); | |
1245 | if (SCM_LIKELY (len > 0)) | |
1246 | idx = scm_to_unsigned_integer (k, 0, len - 1); | |
1247 | else | |
1248 | scm_out_of_range (NULL, k); | |
1249 | ||
9c44cd45 MG |
1250 | if (scm_i_is_narrow_string (str)) |
1251 | return SCM_MAKE_CHAR (scm_i_string_chars (str)[idx]); | |
1252 | else | |
1253 | return SCM_MAKE_CHAR (scm_i_string_wide_chars (str)[idx]); | |
0f2d19dd | 1254 | } |
1bbd0b84 | 1255 | #undef FUNC_NAME |
0f2d19dd | 1256 | |
3ee86942 MV |
1257 | SCM |
1258 | scm_c_string_ref (SCM str, size_t p) | |
1259 | { | |
1260 | if (p >= scm_i_string_length (str)) | |
1261 | scm_out_of_range (NULL, scm_from_size_t (p)); | |
9c44cd45 MG |
1262 | if (scm_i_is_narrow_string (str)) |
1263 | return SCM_MAKE_CHAR (scm_i_string_chars (str)[p]); | |
1264 | else | |
1265 | return SCM_MAKE_CHAR (scm_i_string_wide_chars (str)[p]); | |
1266 | ||
3ee86942 | 1267 | } |
f0942910 | 1268 | |
3b3b36dd | 1269 | SCM_DEFINE (scm_string_set_x, "string-set!", 3, 0, 0, |
6fa73e72 | 1270 | (SCM str, SCM k, SCM chr), |
9c44cd45 MG |
1271 | "Store @var{chr} in element @var{k} of @var{str} and return\n" |
1272 | "an unspecified value. @var{k} must be a valid index of\n" | |
1273 | "@var{str}.") | |
1bbd0b84 | 1274 | #define FUNC_NAME s_scm_string_set_x |
0f2d19dd | 1275 | { |
3ae3166b | 1276 | size_t len; |
a55c2b68 MV |
1277 | unsigned long idx; |
1278 | ||
f0942910 | 1279 | SCM_VALIDATE_STRING (1, str); |
3ae3166b LC |
1280 | |
1281 | len = scm_i_string_length (str); | |
1282 | if (SCM_LIKELY (len > 0)) | |
1283 | idx = scm_to_unsigned_integer (k, 0, len - 1); | |
1284 | else | |
1285 | scm_out_of_range (NULL, k); | |
1286 | ||
34d19ef6 | 1287 | SCM_VALIDATE_CHAR (3, chr); |
9c44cd45 MG |
1288 | str = scm_i_string_start_writing (str); |
1289 | scm_i_string_set_x (str, idx, SCM_CHAR (chr)); | |
1290 | scm_i_string_stop_writing (); | |
1291 | ||
0f2d19dd JB |
1292 | return SCM_UNSPECIFIED; |
1293 | } | |
1bbd0b84 | 1294 | #undef FUNC_NAME |
0f2d19dd | 1295 | |
3ee86942 MV |
1296 | void |
1297 | scm_c_string_set_x (SCM str, size_t p, SCM chr) | |
1298 | { | |
1299 | if (p >= scm_i_string_length (str)) | |
1300 | scm_out_of_range (NULL, scm_from_size_t (p)); | |
9c44cd45 MG |
1301 | str = scm_i_string_start_writing (str); |
1302 | scm_i_string_set_x (str, p, SCM_CHAR (chr)); | |
1303 | scm_i_string_stop_writing (); | |
3ee86942 | 1304 | } |
0f2d19dd | 1305 | |
3b3b36dd | 1306 | SCM_DEFINE (scm_substring, "substring", 2, 1, 0, |
0d26a824 MG |
1307 | (SCM str, SCM start, SCM end), |
1308 | "Return a newly allocated string formed from the characters\n" | |
1309 | "of @var{str} beginning with index @var{start} (inclusive) and\n" | |
1310 | "ending with index @var{end} (exclusive).\n" | |
1311 | "@var{str} must be a string, @var{start} and @var{end} must be\n" | |
1312 | "exact integers satisfying:\n\n" | |
1313 | "0 <= @var{start} <= @var{end} <= (string-length @var{str}).") | |
1bbd0b84 | 1314 | #define FUNC_NAME s_scm_substring |
0f2d19dd | 1315 | { |
3ee86942 | 1316 | size_t len, from, to; |
685c0d71 | 1317 | |
d1ca2c64 | 1318 | SCM_VALIDATE_STRING (1, str); |
3ee86942 MV |
1319 | len = scm_i_string_length (str); |
1320 | from = scm_to_unsigned_integer (start, 0, len); | |
a55c2b68 | 1321 | if (SCM_UNBNDP (end)) |
3ee86942 | 1322 | to = len; |
a55c2b68 | 1323 | else |
3ee86942 MV |
1324 | to = scm_to_unsigned_integer (end, from, len); |
1325 | return scm_i_substring (str, from, to); | |
0f2d19dd | 1326 | } |
1bbd0b84 | 1327 | #undef FUNC_NAME |
0f2d19dd | 1328 | |
ed35de72 MV |
1329 | SCM_DEFINE (scm_substring_read_only, "substring/read-only", 2, 1, 0, |
1330 | (SCM str, SCM start, SCM end), | |
1331 | "Return a newly allocated string formed from the characters\n" | |
1332 | "of @var{str} beginning with index @var{start} (inclusive) and\n" | |
1333 | "ending with index @var{end} (exclusive).\n" | |
1334 | "@var{str} must be a string, @var{start} and @var{end} must be\n" | |
1335 | "exact integers satisfying:\n" | |
1336 | "\n" | |
1337 | "0 <= @var{start} <= @var{end} <= (string-length @var{str}).\n" | |
1338 | "\n" | |
1339 | "The returned string is read-only.\n") | |
1340 | #define FUNC_NAME s_scm_substring_read_only | |
1341 | { | |
1342 | size_t len, from, to; | |
1343 | ||
1344 | SCM_VALIDATE_STRING (1, str); | |
1345 | len = scm_i_string_length (str); | |
1346 | from = scm_to_unsigned_integer (start, 0, len); | |
1347 | if (SCM_UNBNDP (end)) | |
1348 | to = len; | |
1349 | else | |
1350 | to = scm_to_unsigned_integer (end, from, len); | |
1351 | return scm_i_substring_read_only (str, from, to); | |
1352 | } | |
1353 | #undef FUNC_NAME | |
1354 | ||
3ee86942 MV |
1355 | SCM_DEFINE (scm_substring_copy, "substring/copy", 2, 1, 0, |
1356 | (SCM str, SCM start, SCM end), | |
1357 | "Return a newly allocated string formed from the characters\n" | |
1358 | "of @var{str} beginning with index @var{start} (inclusive) and\n" | |
1359 | "ending with index @var{end} (exclusive).\n" | |
1360 | "@var{str} must be a string, @var{start} and @var{end} must be\n" | |
1361 | "exact integers satisfying:\n\n" | |
1362 | "0 <= @var{start} <= @var{end} <= (string-length @var{str}).") | |
1363 | #define FUNC_NAME s_scm_substring_copy | |
1364 | { | |
e1b29f6a MV |
1365 | /* For the Scheme version, START is mandatory, but for the C |
1366 | version, it is optional. See scm_string_copy in srfi-13.c for a | |
1367 | rationale. | |
1368 | */ | |
1369 | ||
1370 | size_t from, to; | |
3ee86942 MV |
1371 | |
1372 | SCM_VALIDATE_STRING (1, str); | |
e1b29f6a MV |
1373 | scm_i_get_substring_spec (scm_i_string_length (str), |
1374 | start, &from, end, &to); | |
3ee86942 MV |
1375 | return scm_i_substring_copy (str, from, to); |
1376 | } | |
1377 | #undef FUNC_NAME | |
1378 | ||
1379 | SCM_DEFINE (scm_substring_shared, "substring/shared", 2, 1, 0, | |
1380 | (SCM str, SCM start, SCM end), | |
1381 | "Return string that indirectly refers to the characters\n" | |
1382 | "of @var{str} beginning with index @var{start} (inclusive) and\n" | |
1383 | "ending with index @var{end} (exclusive).\n" | |
1384 | "@var{str} must be a string, @var{start} and @var{end} must be\n" | |
1385 | "exact integers satisfying:\n\n" | |
1386 | "0 <= @var{start} <= @var{end} <= (string-length @var{str}).") | |
1387 | #define FUNC_NAME s_scm_substring_shared | |
1388 | { | |
1389 | size_t len, from, to; | |
1390 | ||
1391 | SCM_VALIDATE_STRING (1, str); | |
1392 | len = scm_i_string_length (str); | |
1393 | from = scm_to_unsigned_integer (start, 0, len); | |
1394 | if (SCM_UNBNDP (end)) | |
1395 | to = len; | |
1396 | else | |
1397 | to = scm_to_unsigned_integer (end, from, len); | |
1398 | return scm_i_substring_shared (str, from, to); | |
1399 | } | |
1400 | #undef FUNC_NAME | |
685c0d71 | 1401 | |
3b3b36dd | 1402 | SCM_DEFINE (scm_string_append, "string-append", 0, 0, 1, |
6fa73e72 | 1403 | (SCM args), |
9c44cd45 | 1404 | "Return a newly allocated string whose characters form the\n" |
0d26a824 | 1405 | "concatenation of the given strings, @var{args}.") |
1bbd0b84 | 1406 | #define FUNC_NAME s_scm_string_append |
0f2d19dd JB |
1407 | { |
1408 | SCM res; | |
2f13a466 MW |
1409 | size_t total = 0; |
1410 | size_t len; | |
9c44cd45 | 1411 | int wide = 0; |
c829a427 | 1412 | SCM l, s; |
bd4911ef | 1413 | size_t i; |
9909c395 MG |
1414 | union |
1415 | { | |
1416 | char *narrow; | |
1417 | scm_t_wchar *wide; | |
1418 | } data; | |
af45e3b0 DH |
1419 | |
1420 | SCM_VALIDATE_REST_ARGUMENT (args); | |
9c44cd45 | 1421 | for (l = args; !scm_is_null (l); l = SCM_CDR (l)) |
c829a427 MV |
1422 | { |
1423 | s = SCM_CAR (l); | |
1424 | SCM_VALIDATE_STRING (SCM_ARGn, s); | |
2f13a466 MW |
1425 | len = scm_i_string_length (s); |
1426 | if (((size_t) -1) - total < len) | |
1427 | scm_num_overflow (s_scm_string_append); | |
1428 | total += len; | |
9c44cd45 MG |
1429 | if (!scm_i_is_narrow_string (s)) |
1430 | wide = 1; | |
c829a427 | 1431 | } |
9909c395 | 1432 | data.narrow = NULL; |
9c44cd45 | 1433 | if (!wide) |
2f13a466 | 1434 | res = scm_i_make_string (total, &data.narrow, 0); |
9c44cd45 | 1435 | else |
2f13a466 | 1436 | res = scm_i_make_wide_string (total, &data.wide, 0); |
9c44cd45 MG |
1437 | |
1438 | for (l = args; !scm_is_null (l); l = SCM_CDR (l)) | |
c829a427 | 1439 | { |
edea856c | 1440 | size_t len; |
c829a427 | 1441 | s = SCM_CAR (l); |
3ee86942 | 1442 | SCM_VALIDATE_STRING (SCM_ARGn, s); |
edea856c | 1443 | len = scm_i_string_length (s); |
2f13a466 MW |
1444 | if (len > total) |
1445 | SCM_MISC_ERROR ("list changed during string-append", SCM_EOL); | |
9c44cd45 MG |
1446 | if (!wide) |
1447 | { | |
9909c395 MG |
1448 | memcpy (data.narrow, scm_i_string_chars (s), len); |
1449 | data.narrow += len; | |
9c44cd45 MG |
1450 | } |
1451 | else | |
1452 | { | |
1453 | if (scm_i_is_narrow_string (s)) | |
1454 | { | |
2f13a466 MW |
1455 | const char *src = scm_i_string_chars (s); |
1456 | for (i = 0; i < len; i++) | |
1457 | data.wide[i] = (unsigned char) src[i]; | |
9c44cd45 MG |
1458 | } |
1459 | else | |
9909c395 | 1460 | u32_cpy ((scm_t_uint32 *) data.wide, |
9c44cd45 | 1461 | (scm_t_uint32 *) scm_i_string_wide_chars (s), len); |
9909c395 | 1462 | data.wide += len; |
9c44cd45 | 1463 | } |
2f13a466 | 1464 | total -= len; |
c829a427 MV |
1465 | scm_remember_upto_here_1 (s); |
1466 | } | |
2f13a466 MW |
1467 | if (total != 0) |
1468 | SCM_MISC_ERROR ("list changed during string-append", SCM_EOL); | |
0f2d19dd JB |
1469 | return res; |
1470 | } | |
1bbd0b84 | 1471 | #undef FUNC_NAME |
0f2d19dd | 1472 | |
24933780 | 1473 | |
a3d7d5d5 | 1474 | \f |
c62da8f8 | 1475 | /* Charset conversion error handling. */ |
a3d7d5d5 LC |
1476 | |
1477 | SCM_SYMBOL (scm_encoding_error_key, "encoding-error"); | |
c62da8f8 LC |
1478 | SCM_SYMBOL (scm_decoding_error_key, "decoding-error"); |
1479 | ||
6851d3be LC |
1480 | /* Raise an exception informing that character CHR could not be written |
1481 | to PORT in its current encoding. */ | |
d14418a5 | 1482 | void |
ef7e4ba3 | 1483 | scm_encoding_error (const char *subr, int err, const char *message, |
6851d3be | 1484 | SCM port, SCM chr) |
ef7e4ba3 | 1485 | { |
ef7e4ba3 | 1486 | scm_throw (scm_encoding_error_key, |
d050ef66 AW |
1487 | scm_list_n (scm_from_latin1_string (subr), |
1488 | scm_from_latin1_string (message), | |
ef7e4ba3 | 1489 | scm_from_int (err), |
6851d3be | 1490 | port, chr, |
ef7e4ba3 | 1491 | SCM_UNDEFINED)); |
a3d7d5d5 LC |
1492 | } |
1493 | ||
c62da8f8 LC |
1494 | /* Raise an exception informing of an encoding error on PORT. This |
1495 | means that a character could not be written in PORT's encoding. */ | |
1496 | void | |
1497 | scm_decoding_error (const char *subr, int err, const char *message, SCM port) | |
1498 | { | |
1499 | scm_throw (scm_decoding_error_key, | |
d050ef66 AW |
1500 | scm_list_n (scm_from_latin1_string (subr), |
1501 | scm_from_latin1_string (message), | |
c62da8f8 LC |
1502 | scm_from_int (err), |
1503 | port, | |
1504 | SCM_UNDEFINED)); | |
1505 | } | |
1506 | ||
1507 | \f | |
1508 | /* String conversion to/from C. */ | |
1509 | ||
fac32b51 | 1510 | SCM |
587a3355 MG |
1511 | scm_from_stringn (const char *str, size_t len, const char *encoding, |
1512 | scm_t_string_failed_conversion_handler handler) | |
1513 | { | |
1514 | size_t u32len, i; | |
1515 | scm_t_wchar *u32; | |
1516 | int wide = 0; | |
1517 | SCM res; | |
1518 | ||
d40e1ca8 | 1519 | /* The order of these checks is important. */ |
a574564c | 1520 | if (!str && len != 0) |
d40e1ca8 AW |
1521 | scm_misc_error ("scm_from_stringn", "NULL string pointer", SCM_EOL); |
1522 | if (len == (size_t) -1) | |
1523 | len = strlen (str); | |
fac32b51 | 1524 | |
75321259 | 1525 | if (encoding == NULL || len == 0) |
889975e5 | 1526 | { |
75321259 | 1527 | /* If encoding is null (or the string is empty), use Latin-1. */ |
889975e5 | 1528 | char *buf; |
190d4b0d | 1529 | res = scm_i_make_string (len, &buf, 0); |
889975e5 MG |
1530 | memcpy (buf, str, len); |
1531 | return res; | |
1532 | } | |
1533 | ||
587a3355 MG |
1534 | u32len = 0; |
1535 | u32 = (scm_t_wchar *) u32_conv_from_encoding (encoding, | |
1536 | (enum iconv_ilseq_handler) | |
1537 | handler, | |
1538 | str, len, | |
1539 | NULL, | |
1540 | NULL, &u32len); | |
1541 | ||
ef7e4ba3 | 1542 | if (SCM_UNLIKELY (u32 == NULL)) |
587a3355 | 1543 | { |
ef7e4ba3 LC |
1544 | /* Raise an error and pass the raw C string as a bytevector to the `throw' |
1545 | handler. */ | |
1546 | SCM bv; | |
1547 | signed char *buf; | |
1548 | ||
1549 | buf = scm_gc_malloc_pointerless (len, "bytevector"); | |
1550 | memcpy (buf, str, len); | |
fb031aba | 1551 | bv = scm_c_take_gc_bytevector (buf, len); |
ef7e4ba3 | 1552 | |
c62da8f8 LC |
1553 | scm_decoding_error (__func__, errno, |
1554 | "input locale conversion error", bv); | |
587a3355 MG |
1555 | } |
1556 | ||
1557 | i = 0; | |
1558 | while (i < u32len) | |
1559 | if (u32[i++] > 0xFF) | |
1560 | { | |
1561 | wide = 1; | |
1562 | break; | |
1563 | } | |
1564 | ||
1565 | if (!wide) | |
1566 | { | |
1567 | char *dst; | |
190d4b0d | 1568 | res = scm_i_make_string (u32len, &dst, 0); |
587a3355 MG |
1569 | for (i = 0; i < u32len; i ++) |
1570 | dst[i] = (unsigned char) u32[i]; | |
1571 | dst[u32len] = '\0'; | |
1572 | } | |
1573 | else | |
1574 | { | |
1575 | scm_t_wchar *wdst; | |
190d4b0d | 1576 | res = scm_i_make_wide_string (u32len, &wdst, 0); |
587a3355 MG |
1577 | u32_cpy ((scm_t_uint32 *) wdst, (scm_t_uint32 *) u32, u32len); |
1578 | wdst[u32len] = 0; | |
1579 | } | |
1580 | ||
1581 | free (u32); | |
1582 | return res; | |
1583 | } | |
1584 | ||
cf313a94 | 1585 | SCM |
d40e1ca8 | 1586 | scm_from_locale_string (const char *str) |
cf313a94 | 1587 | { |
d40e1ca8 | 1588 | return scm_from_locale_stringn (str, -1); |
cf313a94 MG |
1589 | } |
1590 | ||
c829a427 MV |
1591 | SCM |
1592 | scm_from_locale_stringn (const char *str, size_t len) | |
1593 | { | |
95f5e303 | 1594 | return scm_from_stringn (str, len, locale_charset (), |
b22e94db | 1595 | scm_i_default_port_conversion_handler ()); |
c829a427 | 1596 | } |
4d4528e7 | 1597 | |
c829a427 | 1598 | SCM |
d40e1ca8 | 1599 | scm_from_latin1_string (const char *str) |
4d4528e7 | 1600 | { |
d40e1ca8 AW |
1601 | return scm_from_latin1_stringn (str, -1); |
1602 | } | |
9c44cd45 | 1603 | |
d40e1ca8 AW |
1604 | SCM |
1605 | scm_from_latin1_stringn (const char *str, size_t len) | |
1606 | { | |
e9a35a96 LC |
1607 | char *buf; |
1608 | SCM result; | |
1609 | ||
1610 | if (len == (size_t) -1) | |
1611 | len = strlen (str); | |
1612 | ||
1613 | /* Make a narrow string and copy STR as is. */ | |
190d4b0d | 1614 | result = scm_i_make_string (len, &buf, 0); |
e9a35a96 LC |
1615 | memcpy (buf, str, len); |
1616 | ||
1617 | return result; | |
c829a427 | 1618 | } |
4d4528e7 | 1619 | |
587a3355 | 1620 | SCM |
d40e1ca8 | 1621 | scm_from_utf8_string (const char *str) |
587a3355 | 1622 | { |
d40e1ca8 AW |
1623 | return scm_from_utf8_stringn (str, -1); |
1624 | } | |
1625 | ||
1626 | SCM | |
1627 | scm_from_utf8_stringn (const char *str, size_t len) | |
1628 | { | |
1629 | return scm_from_stringn (str, len, "UTF-8", SCM_FAILED_CONVERSION_ERROR); | |
587a3355 MG |
1630 | } |
1631 | ||
647dc1ac LC |
1632 | SCM |
1633 | scm_from_utf32_string (const scm_t_wchar *str) | |
1634 | { | |
1635 | return scm_from_utf32_stringn (str, -1); | |
1636 | } | |
1637 | ||
1638 | SCM | |
1639 | scm_from_utf32_stringn (const scm_t_wchar *str, size_t len) | |
1640 | { | |
1641 | SCM result; | |
1642 | scm_t_wchar *buf; | |
1643 | ||
1644 | if (len == (size_t) -1) | |
1645 | len = u32_strlen ((uint32_t *) str); | |
1646 | ||
190d4b0d | 1647 | result = scm_i_make_wide_string (len, &buf, 0); |
647dc1ac LC |
1648 | memcpy (buf, str, len * sizeof (scm_t_wchar)); |
1649 | scm_i_try_narrow_string (result); | |
1650 | ||
1651 | return result; | |
1652 | } | |
1653 | ||
50b1996f MG |
1654 | /* Create a new scheme string from the C string STR. The memory of |
1655 | STR may be used directly as storage for the new string. */ | |
13a94556 LC |
1656 | /* FIXME: GC-wise, the only way to use the memory area pointed to by STR |
1657 | would be to register a finalizer to eventually free(3) STR, which isn't | |
1658 | worth it. Should we just deprecate the `scm_take_' functions? */ | |
c829a427 MV |
1659 | SCM |
1660 | scm_take_locale_stringn (char *str, size_t len) | |
1661 | { | |
13a94556 | 1662 | SCM res; |
48ddf0d9 | 1663 | |
13a94556 LC |
1664 | res = scm_from_locale_stringn (str, len); |
1665 | free (str); | |
c829a427 | 1666 | |
c829a427 MV |
1667 | return res; |
1668 | } | |
1669 | ||
48ddf0d9 KR |
1670 | SCM |
1671 | scm_take_locale_string (char *str) | |
1672 | { | |
1673 | return scm_take_locale_stringn (str, -1); | |
1674 | } | |
1675 | ||
f1ee6d54 LC |
1676 | /* Change libunistring escapes (`\uXXXX' and `\UXXXXXXXX') in BUF, a |
1677 | *LENP-byte locale-encoded string, to `\xXX', `\uXXXX', or `\UXXXXXX'. | |
31d4d02b LC |
1678 | Set *LENP to the size of the resulting string. |
1679 | ||
1680 | FIXME: This is a hack we should get rid of. See | |
1681 | <http://lists.gnu.org/archive/html/bug-libunistring/2010-09/msg00004.html> | |
1682 | for details. */ | |
1683 | static void | |
1684 | unistring_escapes_to_guile_escapes (char *buf, size_t *lenp) | |
9c44cd45 MG |
1685 | { |
1686 | char *before, *after; | |
1687 | size_t i, j; | |
1688 | ||
4ff2b9f4 LC |
1689 | before = buf; |
1690 | after = buf; | |
9c44cd45 MG |
1691 | i = 0; |
1692 | j = 0; | |
1693 | while (i < *lenp) | |
1694 | { | |
1695 | if ((i <= *lenp - 6) | |
1696 | && before[i] == '\\' | |
1697 | && before[i + 1] == 'u' | |
1698 | && before[i + 2] == '0' && before[i + 3] == '0') | |
1699 | { | |
1700 | /* Convert \u00NN to \xNN */ | |
1701 | after[j] = '\\'; | |
1702 | after[j + 1] = 'x'; | |
30a6b9ca MG |
1703 | after[j + 2] = tolower ((int) before[i + 4]); |
1704 | after[j + 3] = tolower ((int) before[i + 5]); | |
9c44cd45 MG |
1705 | i += 6; |
1706 | j += 4; | |
1707 | } | |
1708 | else if ((i <= *lenp - 10) | |
1709 | && before[i] == '\\' | |
1710 | && before[i + 1] == 'U' | |
1711 | && before[i + 2] == '0' && before[i + 3] == '0') | |
1712 | { | |
1713 | /* Convert \U00NNNNNN to \UNNNNNN */ | |
1714 | after[j] = '\\'; | |
1715 | after[j + 1] = 'U'; | |
30a6b9ca MG |
1716 | after[j + 2] = tolower ((int) before[i + 4]); |
1717 | after[j + 3] = tolower ((int) before[i + 5]); | |
1718 | after[j + 4] = tolower ((int) before[i + 6]); | |
1719 | after[j + 5] = tolower ((int) before[i + 7]); | |
1720 | after[j + 6] = tolower ((int) before[i + 8]); | |
1721 | after[j + 7] = tolower ((int) before[i + 9]); | |
9c44cd45 MG |
1722 | i += 10; |
1723 | j += 8; | |
1724 | } | |
1725 | else | |
1726 | { | |
1727 | after[j] = before[i]; | |
1728 | i++; | |
1729 | j++; | |
1730 | } | |
1731 | } | |
1732 | *lenp = j; | |
9c44cd45 MG |
1733 | } |
1734 | ||
f1ee6d54 LC |
1735 | /* Change libunistring escapes (`\uXXXX' and `\UXXXXXXXX') in BUF, a |
1736 | *LENP-byte locale-encoded string, to `\xXXXX;'. Set *LEN to the size | |
1737 | of the resulting string. BUF must be large enough to handle the | |
1738 | worst case when `\uXXXX' escapes (6 characters) are replaced by | |
1739 | `\xXXXX;' (7 characters). */ | |
31d4d02b LC |
1740 | static void |
1741 | unistring_escapes_to_r6rs_escapes (char *buf, size_t *lenp) | |
d31b9519 MG |
1742 | { |
1743 | char *before, *after; | |
1744 | size_t i, j; | |
1745 | /* The worst case is if the input string contains all 4-digit hex escapes. | |
1746 | "\uXXXX" (six characters) becomes "\xXXXX;" (seven characters) */ | |
1747 | size_t max_out_len = (*lenp * 7) / 6 + 1; | |
1748 | size_t nzeros, ndigits; | |
1749 | ||
4ff2b9f4 | 1750 | before = buf; |
d31b9519 MG |
1751 | after = alloca (max_out_len); |
1752 | i = 0; | |
1753 | j = 0; | |
1754 | while (i < *lenp) | |
1755 | { | |
1756 | if (((i <= *lenp - 6) && before[i] == '\\' && before[i + 1] == 'u') | |
1757 | || ((i <= *lenp - 10) && before[i] == '\\' && before[i + 1] == 'U')) | |
1758 | { | |
1759 | if (before[i + 1] == 'u') | |
1760 | ndigits = 4; | |
1761 | else if (before[i + 1] == 'U') | |
1762 | ndigits = 8; | |
1763 | else | |
1764 | abort (); | |
1765 | ||
1766 | /* Add the R6RS hex escape initial sequence. */ | |
1767 | after[j] = '\\'; | |
1768 | after[j + 1] = 'x'; | |
1769 | ||
1770 | /* Move string positions to the start of the hex numbers. */ | |
1771 | i += 2; | |
1772 | j += 2; | |
1773 | ||
1774 | /* Find the number of initial zeros in this hex number. */ | |
1775 | nzeros = 0; | |
1776 | while (before[i + nzeros] == '0' && nzeros < ndigits) | |
1777 | nzeros++; | |
1778 | ||
1779 | /* Copy the number, skipping initial zeros, and then move the string | |
1780 | positions. */ | |
1781 | if (nzeros == ndigits) | |
1782 | { | |
1783 | after[j] = '0'; | |
1784 | i += ndigits; | |
1785 | j += 1; | |
1786 | } | |
1787 | else | |
1788 | { | |
1789 | int pos; | |
1790 | for (pos = 0; pos < ndigits - nzeros; pos++) | |
1791 | after[j + pos] = tolower ((int) before[i + nzeros + pos]); | |
1792 | i += ndigits; | |
1793 | j += (ndigits - nzeros); | |
1794 | } | |
1795 | ||
1796 | /* Add terminating semicolon. */ | |
1797 | after[j] = ';'; | |
1798 | j++; | |
1799 | } | |
1800 | else | |
1801 | { | |
1802 | after[j] = before[i]; | |
1803 | i++; | |
1804 | j++; | |
1805 | } | |
1806 | } | |
1807 | *lenp = j; | |
d31b9519 MG |
1808 | memcpy (before, after, j); |
1809 | } | |
1810 | ||
cf313a94 | 1811 | char * |
d40e1ca8 | 1812 | scm_to_locale_string (SCM str) |
cf313a94 | 1813 | { |
d40e1ca8 | 1814 | return scm_to_locale_stringn (str, NULL); |
cf313a94 | 1815 | } |
d31b9519 | 1816 | |
c829a427 | 1817 | char * |
fac32b51 | 1818 | scm_to_locale_stringn (SCM str, size_t *lenp) |
c829a427 | 1819 | { |
b22e94db | 1820 | return scm_to_stringn (str, lenp, |
95f5e303 | 1821 | locale_charset (), |
b22e94db | 1822 | scm_i_default_port_conversion_handler ()); |
9c44cd45 MG |
1823 | } |
1824 | ||
d40e1ca8 AW |
1825 | char * |
1826 | scm_to_latin1_string (SCM str) | |
1827 | { | |
1828 | return scm_to_latin1_stringn (str, NULL); | |
1829 | } | |
1830 | ||
1831 | char * | |
1832 | scm_to_latin1_stringn (SCM str, size_t *lenp) | |
e9a35a96 | 1833 | #define FUNC_NAME "scm_to_latin1_stringn" |
d40e1ca8 | 1834 | { |
e9a35a96 LC |
1835 | char *result; |
1836 | ||
1837 | SCM_VALIDATE_STRING (1, str); | |
1838 | ||
1839 | if (scm_i_is_narrow_string (str)) | |
1840 | { | |
fe133640 AW |
1841 | size_t len = scm_i_string_length (str); |
1842 | ||
e9a35a96 | 1843 | if (lenp) |
fe133640 | 1844 | *lenp = len; |
e9a35a96 | 1845 | |
fe133640 | 1846 | result = scm_strndup (scm_i_string_data (str), len); |
e9a35a96 LC |
1847 | } |
1848 | else | |
1849 | result = scm_to_stringn (str, lenp, NULL, | |
fe133640 | 1850 | SCM_FAILED_CONVERSION_ERROR); |
e9a35a96 LC |
1851 | |
1852 | return result; | |
d40e1ca8 | 1853 | } |
e9a35a96 | 1854 | #undef FUNC_NAME |
d40e1ca8 AW |
1855 | |
1856 | char * | |
1857 | scm_to_utf8_string (SCM str) | |
1858 | { | |
1859 | return scm_to_utf8_stringn (str, NULL); | |
1860 | } | |
1861 | ||
e3d45974 AW |
1862 | static size_t |
1863 | latin1_u8_strlen (const scm_t_uint8 *str, size_t len) | |
1864 | { | |
1865 | size_t ret, i; | |
1866 | for (i = 0, ret = 0; i < len; i++) | |
1867 | ret += (str[i] < 128) ? 1 : 2; | |
1868 | return ret; | |
1869 | } | |
1870 | ||
1871 | static scm_t_uint8* | |
1872 | latin1_to_u8 (const scm_t_uint8 *str, size_t latin_len, | |
1873 | scm_t_uint8 *u8_result, size_t *u8_lenp) | |
1874 | { | |
1875 | size_t i, n; | |
1876 | size_t u8_len = latin1_u8_strlen (str, latin_len); | |
1877 | ||
1878 | if (!(u8_result && u8_lenp && *u8_lenp > u8_len)) | |
1879 | u8_result = scm_malloc (u8_len + 1); | |
1880 | if (u8_lenp) | |
1881 | *u8_lenp = u8_len; | |
1882 | ||
1883 | for (i = 0, n = 0; i < latin_len; i++) | |
1884 | n += u8_uctomb (u8_result + n, str[i], u8_len - n); | |
1885 | if (n != u8_len) | |
1886 | abort (); | |
1887 | u8_result[n] = 0; | |
1888 | ||
1889 | return u8_result; | |
1890 | } | |
1891 | ||
e26da7a2 MW |
1892 | /* UTF-8 code table |
1893 | ||
1894 | (Note that this includes code points that are not allowed by Unicode, | |
1895 | but since this function has no way to report an error, and its | |
1896 | purpose is to determine the size of destination buffers for | |
1897 | libunicode conversion functions, we err on the safe side and handle | |
1898 | everything that libunicode might conceivably handle, now or in the | |
1899 | future.) | |
2c1b7951 AW |
1900 | |
1901 | Char. number range | UTF-8 octet sequence | |
1902 | (hexadecimal) | (binary) | |
e26da7a2 | 1903 | --------------------+------------------------------------------------------ |
2c1b7951 AW |
1904 | 0000 0000-0000 007F | 0xxxxxxx |
1905 | 0000 0080-0000 07FF | 110xxxxx 10xxxxxx | |
1906 | 0000 0800-0000 FFFF | 1110xxxx 10xxxxxx 10xxxxxx | |
e26da7a2 MW |
1907 | 0001 0000-001F FFFF | 11110xxx 10xxxxxx 10xxxxxx 10xxxxxx |
1908 | 0020 0000-03FF FFFF | 111110xx 10xxxxxx 10xxxxxx 10xxxxxx 10xxxxxx | |
1909 | 0400 0000-7FFF FFFF | 1111110x 10xxxxxx 10xxxxxx 10xxxxxx 10xxxxxx 10xxxxxx | |
2c1b7951 AW |
1910 | */ |
1911 | ||
1912 | static size_t | |
e26da7a2 | 1913 | u32_u8_length_in_bytes (const scm_t_uint32 *str, size_t len) |
2c1b7951 AW |
1914 | { |
1915 | size_t ret, i; | |
1916 | ||
1917 | for (i = 0, ret = 0; i < len; i++) | |
1918 | { | |
1919 | scm_t_uint32 c = str[i]; | |
1920 | ||
1921 | if (c <= 0x7f) | |
1922 | ret += 1; | |
1923 | else if (c <= 0x7ff) | |
1924 | ret += 2; | |
1925 | else if (c <= 0xffff) | |
1926 | ret += 3; | |
e26da7a2 | 1927 | else if (c <= 0x1fffff) |
2c1b7951 | 1928 | ret += 4; |
e26da7a2 MW |
1929 | else if (c <= 0x3ffffff) |
1930 | ret += 5; | |
1931 | else | |
1932 | ret += 6; | |
2c1b7951 AW |
1933 | } |
1934 | ||
1935 | return ret; | |
1936 | } | |
1937 | ||
d40e1ca8 AW |
1938 | char * |
1939 | scm_to_utf8_stringn (SCM str, size_t *lenp) | |
ee26a9eb | 1940 | #define FUNC_NAME "scm_to_utf8_stringn" |
d40e1ca8 | 1941 | { |
ee26a9eb AW |
1942 | SCM_VALIDATE_STRING (1, str); |
1943 | ||
e3d45974 AW |
1944 | if (scm_i_is_narrow_string (str)) |
1945 | return (char *) latin1_to_u8 ((scm_t_uint8 *) scm_i_string_chars (str), | |
1946 | scm_i_string_length (str), | |
1947 | NULL, lenp); | |
1948 | else | |
2c1b7951 | 1949 | { |
bbb9f000 | 1950 | scm_t_uint32 *chars = (scm_t_uint32 *) scm_i_string_wide_chars (str); |
2c1b7951 | 1951 | scm_t_uint8 *buf, *ret; |
bbb9f000 MW |
1952 | size_t num_chars = scm_i_string_length (str); |
1953 | size_t num_bytes_predicted, num_bytes_actual; | |
2c1b7951 | 1954 | |
bbb9f000 | 1955 | num_bytes_predicted = u32_u8_length_in_bytes (chars, num_chars); |
2c1b7951 | 1956 | |
e26da7a2 | 1957 | if (lenp) |
2c1b7951 | 1958 | { |
bbb9f000 MW |
1959 | *lenp = num_bytes_predicted; |
1960 | buf = scm_malloc (num_bytes_predicted); | |
2c1b7951 | 1961 | } |
e26da7a2 MW |
1962 | else |
1963 | { | |
bbb9f000 MW |
1964 | buf = scm_malloc (num_bytes_predicted + 1); |
1965 | buf[num_bytes_predicted] = 0; | |
e26da7a2 MW |
1966 | } |
1967 | ||
bbb9f000 MW |
1968 | num_bytes_actual = num_bytes_predicted; |
1969 | ret = u32_to_u8 (chars, num_chars, buf, &num_bytes_actual); | |
e26da7a2 | 1970 | |
bbb9f000 | 1971 | if (SCM_LIKELY (ret == buf && num_bytes_actual == num_bytes_predicted)) |
e26da7a2 | 1972 | return (char *) ret; |
2c1b7951 AW |
1973 | |
1974 | /* An error: a bad codepoint. */ | |
1975 | { | |
1976 | int saved_errno = errno; | |
1977 | ||
1978 | free (buf); | |
1979 | if (!saved_errno) | |
1980 | abort (); | |
1981 | ||
1982 | scm_decoding_error ("scm_to_utf8_stringn", errno, | |
1983 | "invalid codepoint in string", str); | |
1984 | ||
1985 | /* Not reached. */ | |
1986 | return NULL; | |
1987 | } | |
1988 | } | |
d40e1ca8 | 1989 | } |
ee26a9eb | 1990 | #undef FUNC_NAME |
d40e1ca8 | 1991 | |
647dc1ac LC |
1992 | scm_t_wchar * |
1993 | scm_to_utf32_string (SCM str) | |
1994 | { | |
1995 | return scm_to_utf32_stringn (str, NULL); | |
1996 | } | |
1997 | ||
1998 | scm_t_wchar * | |
1999 | scm_to_utf32_stringn (SCM str, size_t *lenp) | |
2000 | #define FUNC_NAME "scm_to_utf32_stringn" | |
2001 | { | |
2002 | scm_t_wchar *result; | |
2003 | ||
2004 | SCM_VALIDATE_STRING (1, str); | |
2005 | ||
2006 | if (scm_i_is_narrow_string (str)) | |
e3d45974 AW |
2007 | { |
2008 | scm_t_uint8 *codepoints; | |
2009 | size_t i, len; | |
2010 | ||
2011 | codepoints = (scm_t_uint8*) scm_i_string_chars (str); | |
2012 | len = scm_i_string_length (str); | |
2013 | if (lenp) | |
2014 | *lenp = len; | |
2015 | ||
2016 | result = scm_malloc ((len + 1) * sizeof (scm_t_wchar)); | |
2017 | for (i = 0; i < len; i++) | |
2018 | result[i] = codepoints[i]; | |
2019 | result[len] = 0; | |
2020 | } | |
647dc1ac LC |
2021 | else |
2022 | { | |
2023 | size_t len; | |
2024 | ||
2025 | len = scm_i_string_length (str); | |
2026 | if (lenp) | |
2027 | *lenp = len; | |
2028 | ||
2029 | result = scm_malloc ((len + 1) * sizeof (scm_t_wchar)); | |
2030 | memcpy (result, scm_i_string_wide_chars (str), | |
2031 | len * sizeof (scm_t_wchar)); | |
2032 | result[len] = 0; | |
2033 | } | |
2034 | ||
2035 | return result; | |
2036 | } | |
2037 | #undef FUNC_NAME | |
2038 | ||
29bcdbb0 LC |
2039 | /* Return a malloc(3)-allocated buffer containing the contents of STR encoded |
2040 | according to ENCODING. If LENP is non-NULL, set it to the size in bytes of | |
2041 | the returned buffer. If the conversion to ENCODING fails, apply the strategy | |
2042 | defined by HANDLER. */ | |
9c44cd45 | 2043 | char * |
587a3355 | 2044 | scm_to_stringn (SCM str, size_t *lenp, const char *encoding, |
eca29b02 | 2045 | scm_t_string_failed_conversion_handler handler) |
9c44cd45 | 2046 | { |
9c44cd45 MG |
2047 | char *buf; |
2048 | size_t ilen, len, i; | |
889975e5 MG |
2049 | int ret; |
2050 | const char *enc; | |
4d4528e7 | 2051 | |
3ee86942 | 2052 | if (!scm_is_string (str)) |
c829a427 | 2053 | scm_wrong_type_arg_msg (NULL, 0, str, "string"); |
9c44cd45 MG |
2054 | ilen = scm_i_string_length (str); |
2055 | ||
2056 | if (ilen == 0) | |
2057 | { | |
2058 | buf = scm_malloc (1); | |
2059 | buf[0] = '\0'; | |
2060 | if (lenp) | |
2061 | *lenp = 0; | |
2062 | return buf; | |
2063 | } | |
587a3355 | 2064 | |
c829a427 | 2065 | if (lenp == NULL) |
9c44cd45 MG |
2066 | for (i = 0; i < ilen; i++) |
2067 | if (scm_i_string_ref (str, i) == '\0') | |
2068 | scm_misc_error (NULL, | |
2069 | "string contains #\\nul character: ~S", | |
2070 | scm_list_1 (str)); | |
2071 | ||
889975e5 | 2072 | if (scm_i_is_narrow_string (str) && (encoding == NULL)) |
c829a427 | 2073 | { |
889975e5 MG |
2074 | /* If using native Latin-1 encoding, just copy the string |
2075 | contents. */ | |
9c44cd45 MG |
2076 | if (lenp) |
2077 | { | |
2078 | buf = scm_malloc (ilen); | |
2079 | memcpy (buf, scm_i_string_chars (str), ilen); | |
2080 | *lenp = ilen; | |
2081 | return buf; | |
2082 | } | |
2083 | else | |
2084 | { | |
2085 | buf = scm_malloc (ilen + 1); | |
2086 | memcpy (buf, scm_i_string_chars (str), ilen); | |
2087 | buf[ilen] = '\0'; | |
2088 | return buf; | |
2089 | } | |
c829a427 | 2090 | } |
9c44cd45 | 2091 | |
587a3355 | 2092 | |
9c44cd45 MG |
2093 | buf = NULL; |
2094 | len = 0; | |
889975e5 MG |
2095 | enc = encoding; |
2096 | if (enc == NULL) | |
2097 | enc = "ISO-8859-1"; | |
2098 | if (scm_i_is_narrow_string (str)) | |
2099 | { | |
2100 | ret = mem_iconveh (scm_i_string_chars (str), ilen, | |
2101 | "ISO-8859-1", enc, | |
2102 | (enum iconv_ilseq_handler) handler, NULL, | |
2103 | &buf, &len); | |
9c44cd45 | 2104 | |
889975e5 | 2105 | if (ret != 0) |
ef7e4ba3 | 2106 | scm_encoding_error (__func__, errno, |
6851d3be LC |
2107 | "cannot convert narrow string to output locale", |
2108 | SCM_BOOL_F, | |
2109 | /* FIXME: Faulty character unknown. */ | |
2110 | SCM_BOOL_F); | |
889975e5 MG |
2111 | } |
2112 | else | |
2113 | { | |
d31b9519 | 2114 | buf = u32_conv_to_encoding (enc, |
889975e5 | 2115 | (enum iconv_ilseq_handler) handler, |
d31b9519 | 2116 | (scm_t_uint32 *) scm_i_string_wide_chars (str), |
889975e5 MG |
2117 | ilen, |
2118 | NULL, | |
2119 | NULL, &len); | |
2120 | if (buf == NULL) | |
ef7e4ba3 | 2121 | scm_encoding_error (__func__, errno, |
6851d3be LC |
2122 | "cannot convert wide string to output locale", |
2123 | SCM_BOOL_F, | |
2124 | /* FIXME: Faulty character unknown. */ | |
2125 | SCM_BOOL_F); | |
d31b9519 MG |
2126 | } |
2127 | if (handler == SCM_FAILED_CONVERSION_ESCAPE_SEQUENCE) | |
2128 | { | |
2129 | if (SCM_R6RS_ESCAPES_P) | |
f1ee6d54 LC |
2130 | { |
2131 | /* The worst case is if the input string contains all 4-digit | |
2132 | hex escapes. "\uXXXX" (six characters) becomes "\xXXXX;" | |
2133 | (seven characters). Make BUF large enough to hold | |
2134 | that. */ | |
2135 | buf = scm_realloc (buf, (len * 7) / 6 + 1); | |
31d4d02b | 2136 | unistring_escapes_to_r6rs_escapes (buf, &len); |
f1ee6d54 | 2137 | } |
d31b9519 | 2138 | else |
31d4d02b | 2139 | unistring_escapes_to_guile_escapes (buf, &len); |
4ff2b9f4 LC |
2140 | |
2141 | buf = scm_realloc (buf, len); | |
889975e5 | 2142 | } |
9c44cd45 | 2143 | if (lenp) |
4d4528e7 | 2144 | *lenp = len; |
9c44cd45 MG |
2145 | else |
2146 | { | |
2147 | buf = scm_realloc (buf, len + 1); | |
2148 | buf[len] = '\0'; | |
2149 | } | |
24933780 | 2150 | |
c829a427 | 2151 | scm_remember_upto_here_1 (str); |
9c44cd45 | 2152 | return buf; |
4d4528e7 | 2153 | } |
af68e5e5 | 2154 | |
c829a427 MV |
2155 | size_t |
2156 | scm_to_locale_stringbuf (SCM str, char *buf, size_t max_len) | |
2157 | { | |
2158 | size_t len; | |
9c44cd45 | 2159 | char *result = NULL; |
3ee86942 | 2160 | if (!scm_is_string (str)) |
c829a427 | 2161 | scm_wrong_type_arg_msg (NULL, 0, str, "string"); |
9c44cd45 MG |
2162 | result = scm_to_locale_stringn (str, &len); |
2163 | ||
2164 | memcpy (buf, result, (len > max_len) ? max_len : len); | |
2165 | free (result); | |
2166 | ||
c829a427 MV |
2167 | scm_remember_upto_here_1 (str); |
2168 | return len; | |
2169 | } | |
af68e5e5 | 2170 | |
a3d7d5d5 LC |
2171 | \f |
2172 | /* Unicode string normalization. */ | |
2173 | ||
edb7bb47 JG |
2174 | /* This function is a partial clone of SCM_STRING_TO_U32_BUF from |
2175 | libguile/i18n.c. It would be useful to have this factored out into a more | |
2176 | convenient location, but its use of alloca makes that tricky to do. */ | |
2177 | ||
2178 | static SCM | |
2179 | normalize_str (SCM string, uninorm_t form) | |
2180 | { | |
2181 | SCM ret; | |
2182 | scm_t_uint32 *w_str; | |
2183 | scm_t_wchar *cbuf; | |
2184 | size_t rlen, len = scm_i_string_length (string); | |
2185 | ||
2186 | if (scm_i_is_narrow_string (string)) | |
2187 | { | |
2188 | size_t i; | |
2189 | const char *buf = scm_i_string_chars (string); | |
2190 | ||
2191 | w_str = alloca (sizeof (scm_t_wchar) * (len + 1)); | |
2192 | ||
2193 | for (i = 0; i < len; i ++) | |
2194 | w_str[i] = (unsigned char) buf[i]; | |
2195 | w_str[len] = 0; | |
2196 | } | |
d8164b04 JG |
2197 | else |
2198 | w_str = (scm_t_uint32 *) scm_i_string_wide_chars (string); | |
2199 | ||
edb7bb47 JG |
2200 | w_str = u32_normalize (form, w_str, len, NULL, &rlen); |
2201 | ||
190d4b0d | 2202 | ret = scm_i_make_wide_string (rlen, &cbuf, 0); |
edb7bb47 JG |
2203 | u32_cpy ((scm_t_uint32 *) cbuf, w_str, rlen); |
2204 | free (w_str); | |
d8164b04 JG |
2205 | |
2206 | scm_i_try_narrow_string (ret); | |
2207 | ||
edb7bb47 JG |
2208 | return ret; |
2209 | } | |
2210 | ||
2211 | SCM_DEFINE (scm_string_normalize_nfc, "string-normalize-nfc", 1, 0, 0, | |
2212 | (SCM string), | |
2213 | "Returns the NFC normalized form of @var{string}.") | |
2214 | #define FUNC_NAME s_scm_string_normalize_nfc | |
2215 | { | |
2216 | SCM_VALIDATE_STRING (1, string); | |
2217 | return normalize_str (string, UNINORM_NFC); | |
2218 | } | |
2219 | #undef FUNC_NAME | |
2220 | ||
2221 | SCM_DEFINE (scm_string_normalize_nfd, "string-normalize-nfd", 1, 0, 0, | |
2222 | (SCM string), | |
2223 | "Returns the NFD normalized form of @var{string}.") | |
2224 | #define FUNC_NAME s_scm_string_normalize_nfd | |
2225 | { | |
2226 | SCM_VALIDATE_STRING (1, string); | |
2227 | return normalize_str (string, UNINORM_NFD); | |
2228 | } | |
2229 | #undef FUNC_NAME | |
2230 | ||
2231 | SCM_DEFINE (scm_string_normalize_nfkc, "string-normalize-nfkc", 1, 0, 0, | |
2232 | (SCM string), | |
2233 | "Returns the NFKC normalized form of @var{string}.") | |
2234 | #define FUNC_NAME s_scm_string_normalize_nfkc | |
2235 | { | |
2236 | SCM_VALIDATE_STRING (1, string); | |
2237 | return normalize_str (string, UNINORM_NFKC); | |
2238 | } | |
2239 | #undef FUNC_NAME | |
2240 | ||
2241 | SCM_DEFINE (scm_string_normalize_nfkd, "string-normalize-nfkd", 1, 0, 0, | |
2242 | (SCM string), | |
2243 | "Returns the NFKD normalized form of @var{string}.") | |
2244 | #define FUNC_NAME s_scm_string_normalize_nfkd | |
2245 | { | |
2246 | SCM_VALIDATE_STRING (1, string); | |
2247 | return normalize_str (string, UNINORM_NFKD); | |
2248 | } | |
2249 | #undef FUNC_NAME | |
2250 | ||
7505c6e0 MW |
2251 | /* converts C scm_array of strings to SCM scm_list of strings. |
2252 | If argc < 0, a null terminated scm_array is assumed. | |
2253 | The current locale encoding is assumed */ | |
9c44cd45 | 2254 | SCM |
3ee86942 MV |
2255 | scm_makfromstrs (int argc, char **argv) |
2256 | { | |
2257 | int i = argc; | |
2258 | SCM lst = SCM_EOL; | |
2259 | if (0 > i) | |
2260 | for (i = 0; argv[i]; i++); | |
2261 | while (i--) | |
2262 | lst = scm_cons (scm_from_locale_string (argv[i]), lst); | |
2263 | return lst; | |
2264 | } | |
2265 | ||
c829a427 | 2266 | /* Return a newly allocated array of char pointers to each of the strings |
7505c6e0 MW |
2267 | in args, with a terminating NULL pointer. The strings are encoded using |
2268 | the current locale. */ | |
c829a427 MV |
2269 | |
2270 | char ** | |
2271 | scm_i_allocate_string_pointers (SCM list) | |
2a776823 | 2272 | #define FUNC_NAME "scm_i_allocate_string_pointers" |
af68e5e5 | 2273 | { |
c829a427 | 2274 | char **result; |
7505c6e0 | 2275 | int list_len = scm_ilength (list); |
c829a427 MV |
2276 | int i; |
2277 | ||
7505c6e0 | 2278 | if (list_len < 0) |
c829a427 MV |
2279 | scm_wrong_type_arg_msg (NULL, 0, list, "proper list"); |
2280 | ||
7505c6e0 | 2281 | result = scm_gc_malloc ((list_len + 1) * sizeof (char *), |
2a776823 | 2282 | "string pointers"); |
7505c6e0 | 2283 | result[list_len] = NULL; |
c829a427 | 2284 | |
7505c6e0 | 2285 | /* The list might have been modified in another thread, so |
c829a427 MV |
2286 | we check LIST before each access. |
2287 | */ | |
7505c6e0 | 2288 | for (i = 0; i < list_len && scm_is_pair (list); i++) |
c829a427 | 2289 | { |
7505c6e0 MW |
2290 | SCM str = SCM_CAR (list); |
2291 | size_t len; /* String length in bytes */ | |
2292 | char *c_str = scm_to_locale_stringn (str, &len); | |
2293 | ||
2294 | /* OPTIMIZE-ME: Right now, scm_to_locale_stringn always uses | |
2295 | scm_malloc to allocate the returned string, which must be | |
2296 | explicitly deallocated. This forces us to copy the string a | |
2297 | second time into a new buffer. Ideally there would be variants | |
2298 | of scm_to_*_stringn that can return garbage-collected buffers. */ | |
2299 | ||
2300 | result[i] = scm_gc_malloc_pointerless (len + 1, "string"); | |
2301 | memcpy (result[i], c_str, len); | |
2a776823 | 2302 | result[i][len] = '\0'; |
7505c6e0 | 2303 | free (c_str); |
2a776823 | 2304 | |
c829a427 MV |
2305 | list = SCM_CDR (list); |
2306 | } | |
2307 | ||
c829a427 | 2308 | return result; |
af68e5e5 | 2309 | } |
2a776823 | 2310 | #undef FUNC_NAME |
24933780 | 2311 | |
6f14f578 MV |
2312 | void |
2313 | scm_i_get_substring_spec (size_t len, | |
2314 | SCM start, size_t *cstart, | |
2315 | SCM end, size_t *cend) | |
2316 | { | |
2317 | if (SCM_UNBNDP (start)) | |
2318 | *cstart = 0; | |
2319 | else | |
2320 | *cstart = scm_to_unsigned_integer (start, 0, len); | |
2321 | ||
2322 | if (SCM_UNBNDP (end)) | |
2323 | *cend = len; | |
2324 | else | |
2325 | *cend = scm_to_unsigned_integer (end, *cstart, len); | |
2326 | } | |
2327 | ||
3ee86942 MV |
2328 | #if SCM_ENABLE_DEPRECATED |
2329 | ||
556d75db MV |
2330 | /* When these definitions are removed, it becomes reasonable to use |
2331 | read-only strings for string literals. For that, change the reader | |
2332 | to create string literals with scm_c_substring_read_only instead of | |
2333 | with scm_c_substring_copy. | |
2334 | */ | |
2335 | ||
3ee86942 | 2336 | int |
fe78c51a | 2337 | scm_i_deprecated_stringp (SCM str) |
3ee86942 MV |
2338 | { |
2339 | scm_c_issue_deprecation_warning | |
2340 | ("SCM_STRINGP is deprecated. Use scm_is_string instead."); | |
2341 | ||
2616f0e0 | 2342 | return scm_is_string (str); |
3ee86942 MV |
2343 | } |
2344 | ||
2345 | char * | |
fe78c51a | 2346 | scm_i_deprecated_string_chars (SCM str) |
3ee86942 MV |
2347 | { |
2348 | char *chars; | |
2349 | ||
2350 | scm_c_issue_deprecation_warning | |
2351 | ("SCM_STRING_CHARS is deprecated. See the manual for alternatives."); | |
2352 | ||
2616f0e0 MV |
2353 | /* We don't accept shared substrings here since they are not |
2354 | null-terminated. | |
2355 | */ | |
2356 | if (IS_SH_STRING (str)) | |
c291b588 LC |
2357 | scm_misc_error (NULL, |
2358 | "SCM_STRING_CHARS does not work with shared substrings", | |
2616f0e0 MV |
2359 | SCM_EOL); |
2360 | ||
877f06c3 | 2361 | /* We explicitly test for read-only strings to produce a better |
556d75db MV |
2362 | error message. |
2363 | */ | |
2364 | ||
2365 | if (IS_RO_STRING (str)) | |
c291b588 LC |
2366 | scm_misc_error (NULL, |
2367 | "SCM_STRING_CHARS does not work with read-only strings", | |
556d75db | 2368 | SCM_EOL); |
c291b588 | 2369 | |
2616f0e0 | 2370 | /* The following is still wrong, of course... |
3ee86942 | 2371 | */ |
9c44cd45 | 2372 | str = scm_i_string_start_writing (str); |
3ee86942 MV |
2373 | chars = scm_i_string_writable_chars (str); |
2374 | scm_i_string_stop_writing (); | |
2375 | return chars; | |
2376 | } | |
2377 | ||
2378 | size_t | |
fe78c51a | 2379 | scm_i_deprecated_string_length (SCM str) |
3ee86942 MV |
2380 | { |
2381 | scm_c_issue_deprecation_warning | |
2382 | ("SCM_STRING_LENGTH is deprecated. Use scm_c_string_length instead."); | |
2383 | return scm_c_string_length (str); | |
2384 | } | |
2385 | ||
2386 | #endif | |
2387 | ||
2a610be5 AW |
2388 | static SCM |
2389 | string_handle_ref (scm_t_array_handle *h, size_t index) | |
2390 | { | |
2391 | return scm_c_string_ref (h->array, index); | |
2392 | } | |
2393 | ||
2394 | static void | |
2395 | string_handle_set (scm_t_array_handle *h, size_t index, SCM val) | |
2396 | { | |
2397 | scm_c_string_set_x (h->array, index, val); | |
2398 | } | |
2399 | ||
2400 | static void | |
2401 | string_get_handle (SCM v, scm_t_array_handle *h) | |
2402 | { | |
2403 | h->array = v; | |
2404 | h->ndims = 1; | |
2405 | h->dims = &h->dim0; | |
2406 | h->dim0.lbnd = 0; | |
2407 | h->dim0.ubnd = scm_c_string_length (v) - 1; | |
2408 | h->dim0.inc = 1; | |
2409 | h->element_type = SCM_ARRAY_ELEMENT_TYPE_CHAR; | |
2410 | h->elements = h->writable_elements = NULL; | |
2411 | } | |
2412 | ||
c5f17102 | 2413 | SCM_ARRAY_IMPLEMENTATION (scm_tc7_string, 0x7f, |
2a610be5 | 2414 | string_handle_ref, string_handle_set, |
f65e0168 LC |
2415 | string_get_handle) |
2416 | SCM_VECTOR_IMPLEMENTATION (SCM_ARRAY_ELEMENT_TYPE_CHAR, scm_make_string) | |
2a610be5 | 2417 | |
0f2d19dd JB |
2418 | void |
2419 | scm_init_strings () | |
0f2d19dd | 2420 | { |
a7e392c1 | 2421 | scm_nullstr = scm_i_make_string (0, NULL, 0); |
7c33806a | 2422 | |
a0599745 | 2423 | #include "libguile/strings.x" |
0f2d19dd JB |
2424 | } |
2425 | ||
89e00824 ML |
2426 | |
2427 | /* | |
2428 | Local Variables: | |
2429 | c-file-style: "gnu" | |
2430 | End: | |
2431 | */ |