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a0ed51b3 LW |
1 | /* utf8.c |
2 | * | |
3818b22b | 3 | * Copyright (c) 1998-2000, Larry Wall |
a0ed51b3 LW |
4 | * |
5 | * You may distribute under the terms of either the GNU General Public | |
6 | * License or the Artistic License, as specified in the README file. | |
7 | * | |
8 | */ | |
9 | ||
10 | /* | |
11 | * 'What a fix!' said Sam. 'That's the one place in all the lands we've ever | |
12 | * heard of that we don't want to see any closer; and that's the one place | |
13 | * we're trying to get to! And that's just where we can't get, nohow.' | |
14 | * | |
15 | * 'Well do I understand your speech,' he answered in the same language; | |
16 | * 'yet few strangers do so. Why then do you not speak in the Common Tongue, | |
17 | * as is the custom in the West, if you wish to be answered?' | |
18 | * | |
19 | * ...the travellers perceived that the floor was paved with stones of many | |
20 | * hues; branching runes and strange devices intertwined beneath their feet. | |
21 | */ | |
22 | ||
23 | #include "EXTERN.h" | |
864dbfa3 | 24 | #define PERL_IN_UTF8_C |
a0ed51b3 LW |
25 | #include "perl.h" |
26 | ||
27 | /* Unicode support */ | |
28 | ||
dfe13c55 | 29 | U8 * |
864dbfa3 | 30 | Perl_uv_to_utf8(pTHX_ U8 *d, UV uv) |
a0ed51b3 LW |
31 | { |
32 | if (uv < 0x80) { | |
33 | *d++ = uv; | |
34 | return d; | |
35 | } | |
36 | if (uv < 0x800) { | |
37 | *d++ = (( uv >> 6) | 0xc0); | |
38 | *d++ = (( uv & 0x3f) | 0x80); | |
39 | return d; | |
40 | } | |
41 | if (uv < 0x10000) { | |
42 | *d++ = (( uv >> 12) | 0xe0); | |
43 | *d++ = (((uv >> 6) & 0x3f) | 0x80); | |
44 | *d++ = (( uv & 0x3f) | 0x80); | |
45 | return d; | |
46 | } | |
47 | if (uv < 0x200000) { | |
48 | *d++ = (( uv >> 18) | 0xf0); | |
49 | *d++ = (((uv >> 12) & 0x3f) | 0x80); | |
50 | *d++ = (((uv >> 6) & 0x3f) | 0x80); | |
51 | *d++ = (( uv & 0x3f) | 0x80); | |
52 | return d; | |
53 | } | |
54 | if (uv < 0x4000000) { | |
55 | *d++ = (( uv >> 24) | 0xf8); | |
56 | *d++ = (((uv >> 18) & 0x3f) | 0x80); | |
57 | *d++ = (((uv >> 12) & 0x3f) | 0x80); | |
58 | *d++ = (((uv >> 6) & 0x3f) | 0x80); | |
59 | *d++ = (( uv & 0x3f) | 0x80); | |
60 | return d; | |
61 | } | |
62 | if (uv < 0x80000000) { | |
63 | *d++ = (( uv >> 30) | 0xfc); | |
64 | *d++ = (((uv >> 24) & 0x3f) | 0x80); | |
65 | *d++ = (((uv >> 18) & 0x3f) | 0x80); | |
66 | *d++ = (((uv >> 12) & 0x3f) | 0x80); | |
67 | *d++ = (((uv >> 6) & 0x3f) | 0x80); | |
68 | *d++ = (( uv & 0x3f) | 0x80); | |
69 | return d; | |
70 | } | |
6b8eaf93 | 71 | #ifdef HAS_QUAD |
628e1a40 | 72 | if (uv < 0x1000000000LL) |
a0ed51b3 LW |
73 | #endif |
74 | { | |
75 | *d++ = 0xfe; /* Can't match U+FEFF! */ | |
76 | *d++ = (((uv >> 30) & 0x3f) | 0x80); | |
77 | *d++ = (((uv >> 24) & 0x3f) | 0x80); | |
78 | *d++ = (((uv >> 18) & 0x3f) | 0x80); | |
79 | *d++ = (((uv >> 12) & 0x3f) | 0x80); | |
80 | *d++ = (((uv >> 6) & 0x3f) | 0x80); | |
81 | *d++ = (( uv & 0x3f) | 0x80); | |
82 | return d; | |
83 | } | |
6b8eaf93 | 84 | #ifdef HAS_QUAD |
a0ed51b3 LW |
85 | { |
86 | *d++ = 0xff; /* Can't match U+FFFE! */ | |
3c77ea2b GS |
87 | *d++ = 0x80; /* 6 Reserved bits */ |
88 | *d++ = (((uv >> 60) & 0x0f) | 0x80); /* 2 Reserved bits */ | |
89 | *d++ = (((uv >> 54) & 0x3f) | 0x80); | |
90 | *d++ = (((uv >> 48) & 0x3f) | 0x80); | |
91 | *d++ = (((uv >> 42) & 0x3f) | 0x80); | |
a0ed51b3 LW |
92 | *d++ = (((uv >> 36) & 0x3f) | 0x80); |
93 | *d++ = (((uv >> 30) & 0x3f) | 0x80); | |
94 | *d++ = (((uv >> 24) & 0x3f) | 0x80); | |
95 | *d++ = (((uv >> 18) & 0x3f) | 0x80); | |
96 | *d++ = (((uv >> 12) & 0x3f) | 0x80); | |
97 | *d++ = (((uv >> 6) & 0x3f) | 0x80); | |
98 | *d++ = (( uv & 0x3f) | 0x80); | |
99 | return d; | |
100 | } | |
101 | #endif | |
102 | } | |
103 | ||
386d01d6 GS |
104 | /* Tests if some arbitrary number of bytes begins in a valid UTF-8 character. |
105 | * The actual number of bytes in the UTF-8 character will be returned if it | |
106 | * is valid, otherwise 0. */ | |
107 | int | |
108 | Perl_is_utf8_char(pTHX_ U8 *s) | |
109 | { | |
110 | U8 u = *s; | |
111 | int slen, len; | |
112 | ||
113 | if (!(u & 0x80)) | |
114 | return 1; | |
115 | ||
116 | if (!(u & 0x40)) | |
117 | return 0; | |
118 | ||
9f07fdcd | 119 | len = UTF8SKIP(s); |
386d01d6 GS |
120 | |
121 | slen = len - 1; | |
122 | s++; | |
123 | while (slen--) { | |
124 | if ((*s & 0xc0) != 0x80) | |
125 | return 0; | |
126 | s++; | |
127 | } | |
128 | return len; | |
129 | } | |
130 | ||
6662521e | 131 | /* |
b2a2e44b | 132 | =for apidoc Am|is_utf8_string|U8 *s|STRLEN len |
6662521e GS |
133 | |
134 | Returns true if first C<len> bytes of the given string form valid a UTF8 | |
135 | string, false otherwise. | |
136 | ||
137 | =cut | |
138 | */ | |
139 | ||
8e84507e | 140 | bool |
6662521e GS |
141 | Perl_is_utf8_string(pTHX_ U8 *s, STRLEN len) |
142 | { | |
143 | U8* x=s; | |
144 | U8* send=s+len; | |
145 | int c; | |
146 | while (x < send) { | |
147 | c = is_utf8_char(x); | |
148 | x += c; | |
149 | if (!c || x > send) | |
150 | return 0; | |
151 | } | |
152 | return 1; | |
153 | } | |
154 | ||
67e989fb | 155 | /* |
8e84507e | 156 | =for apidoc Am|U8* s|utf8_to_uv_chk|I32 *retlen|I32 checking |
67e989fb JH |
157 | |
158 | Returns the character value of the first character in the string C<s> | |
159 | which is assumed to be in UTF8 encoding; C<retlen> will be set to the | |
160 | length, in bytes, of that character, and the pointer C<s> will be | |
161 | advanced to the end of the character. | |
162 | ||
163 | If C<s> does not point to a well-formed UTF8 character, the behaviour | |
164 | is dependent on the value of C<checking>: if this is true, it is | |
165 | assumed that the caller will raise a warning, and this function will | |
166 | set C<retlen> to C<-1> and return. If C<checking> is not true, an optional UTF8 | |
167 | warning is produced. | |
168 | ||
169 | =cut | |
170 | */ | |
171 | ||
a0ed51b3 | 172 | UV |
8e84507e | 173 | Perl_utf8_to_uv_chk(pTHX_ U8* s, I32* retlen, bool checking) |
a0ed51b3 LW |
174 | { |
175 | UV uv = *s; | |
176 | int len; | |
177 | if (!(uv & 0x80)) { | |
178 | if (retlen) | |
179 | *retlen = 1; | |
180 | return *s; | |
181 | } | |
182 | if (!(uv & 0x40)) { | |
0453d815 | 183 | dTHR; |
67e989fb JH |
184 | if (checking && retlen) { |
185 | *retlen = -1; | |
186 | return 0; | |
187 | } | |
188 | ||
8e84507e | 189 | if (ckWARN_d(WARN_UTF8)) |
0453d815 | 190 | Perl_warner(aTHX_ WARN_UTF8, "Malformed UTF-8 character"); |
a0ed51b3 LW |
191 | if (retlen) |
192 | *retlen = 1; | |
193 | return *s; | |
194 | } | |
195 | ||
196 | if (!(uv & 0x20)) { len = 2; uv &= 0x1f; } | |
197 | else if (!(uv & 0x10)) { len = 3; uv &= 0x0f; } | |
198 | else if (!(uv & 0x08)) { len = 4; uv &= 0x07; } | |
199 | else if (!(uv & 0x04)) { len = 5; uv &= 0x03; } | |
200 | else if (!(uv & 0x02)) { len = 6; uv &= 0x01; } | |
3c77ea2b GS |
201 | else if (!(uv & 0x01)) { len = 7; uv = 0; } |
202 | else { len = 13; uv = 0; } /* whoa! */ | |
a0ed51b3 LW |
203 | |
204 | if (retlen) | |
205 | *retlen = len; | |
206 | --len; | |
207 | s++; | |
208 | while (len--) { | |
209 | if ((*s & 0xc0) != 0x80) { | |
0453d815 | 210 | dTHR; |
67e989fb JH |
211 | if (checking && retlen) { |
212 | *retlen = -1; | |
213 | return 0; | |
214 | } | |
215 | ||
8e84507e | 216 | if (ckWARN_d(WARN_UTF8)) |
0453d815 | 217 | Perl_warner(aTHX_ WARN_UTF8, "Malformed UTF-8 character"); |
a0ed51b3 LW |
218 | if (retlen) |
219 | *retlen -= len + 1; | |
220 | return 0xfffd; | |
221 | } | |
222 | else | |
223 | uv = (uv << 6) | (*s++ & 0x3f); | |
224 | } | |
225 | return uv; | |
226 | } | |
227 | ||
8e84507e NIS |
228 | /* |
229 | =for apidoc Am|U8* s|utf8_to_uv|I32 *retlen | |
230 | ||
231 | Returns the character value of the first character in the string C<s> | |
232 | which is assumed to be in UTF8 encoding; C<retlen> will be set to the | |
233 | length, in bytes, of that character, and the pointer C<s> will be | |
234 | advanced to the end of the character. | |
235 | ||
236 | If C<s> does not point to a well-formed UTF8 character, an optional UTF8 | |
237 | warning is produced. | |
238 | ||
239 | =cut | |
240 | */ | |
241 | ||
242 | UV | |
243 | Perl_utf8_to_uv(pTHX_ U8* s, I32* retlen) | |
244 | { | |
245 | return Perl_utf8_to_uv_chk(aTHX_ s, retlen, 0); | |
246 | } | |
247 | ||
246fae53 MG |
248 | /* utf8_distance(a,b) returns the number of UTF8 characters between |
249 | the pointers a and b */ | |
a0ed51b3 LW |
250 | |
251 | I32 | |
864dbfa3 | 252 | Perl_utf8_distance(pTHX_ U8 *a, U8 *b) |
a0ed51b3 LW |
253 | { |
254 | I32 off = 0; | |
255 | if (a < b) { | |
256 | while (a < b) { | |
257 | a += UTF8SKIP(a); | |
258 | off--; | |
259 | } | |
260 | } | |
261 | else { | |
262 | while (b < a) { | |
263 | b += UTF8SKIP(b); | |
264 | off++; | |
265 | } | |
266 | } | |
267 | return off; | |
268 | } | |
269 | ||
270 | /* WARNING: do not use the following unless you *know* off is within bounds */ | |
271 | ||
272 | U8 * | |
864dbfa3 | 273 | Perl_utf8_hop(pTHX_ U8 *s, I32 off) |
a0ed51b3 LW |
274 | { |
275 | if (off >= 0) { | |
276 | while (off--) | |
277 | s += UTF8SKIP(s); | |
278 | } | |
279 | else { | |
280 | while (off++) { | |
281 | s--; | |
282 | if (*s & 0x80) { | |
283 | while ((*s & 0xc0) == 0x80) | |
284 | s--; | |
285 | } | |
286 | } | |
287 | } | |
288 | return s; | |
289 | } | |
290 | ||
6940069f | 291 | /* |
246fae53 | 292 | =for apidoc Am|U8 *|utf8_to_bytes|U8 *s|STRLEN *len |
6940069f | 293 | |
246fae53 MG |
294 | Converts a string C<s> of length C<len> from UTF8 into byte encoding. |
295 | Unlike C<bytes_to_utf8>, this over-writes the original string, and | |
296 | updates len to contain the new length. | |
67e989fb | 297 | Returns zero on failure, setting C<len> to -1. |
6940069f GS |
298 | |
299 | =cut | |
300 | */ | |
301 | ||
302 | U8 * | |
246fae53 | 303 | Perl_utf8_to_bytes(pTHX_ U8* s, STRLEN *len) |
6940069f GS |
304 | { |
305 | dTHR; | |
306 | U8 *send; | |
307 | U8 *d; | |
308 | U8 *save; | |
309 | ||
246fae53 | 310 | send = s + *len; |
6940069f | 311 | d = save = s; |
246fae53 MG |
312 | |
313 | /* ensure valid UTF8 and chars < 256 before updating string */ | |
314 | while (s < send) { | |
315 | U8 c = *s++; | |
9f9ab905 SB |
316 | if (c >= 0x80 && |
317 | ( (s >= send) || ((*s++ & 0xc0) != 0x80) || ((c & 0xfe) != 0xc2))) { | |
67e989fb | 318 | *len = -1; |
8e84507e | 319 | return 0; |
67e989fb | 320 | } |
246fae53 MG |
321 | } |
322 | s = save; | |
6940069f GS |
323 | while (s < send) { |
324 | if (*s < 0x80) | |
325 | *d++ = *s++; | |
326 | else { | |
327 | I32 ulen; | |
8e84507e | 328 | *d++ = (U8)utf8_to_uv(s, &ulen); |
6940069f | 329 | s += ulen; |
6940069f GS |
330 | } |
331 | } | |
332 | *d = '\0'; | |
246fae53 | 333 | *len = d - save; |
6940069f GS |
334 | return save; |
335 | } | |
336 | ||
337 | /* | |
6662521e | 338 | =for apidoc Am|U8 *|bytes_to_utf8|U8 *s|STRLEN *len |
6940069f GS |
339 | |
340 | Converts a string C<s> of length C<len> from ASCII into UTF8 encoding. | |
6662521e GS |
341 | Returns a pointer to the newly-created string, and sets C<len> to |
342 | reflect the new length. | |
6940069f | 343 | |
497711e7 | 344 | =cut |
6940069f GS |
345 | */ |
346 | ||
347 | U8* | |
6662521e | 348 | Perl_bytes_to_utf8(pTHX_ U8* s, STRLEN *len) |
6940069f GS |
349 | { |
350 | dTHR; | |
351 | U8 *send; | |
352 | U8 *d; | |
353 | U8 *dst; | |
6662521e | 354 | send = s + (*len); |
6940069f | 355 | |
6662521e | 356 | Newz(801, d, (*len) * 2 + 1, U8); |
6940069f GS |
357 | dst = d; |
358 | ||
359 | while (s < send) { | |
360 | if (*s < 0x80) | |
361 | *d++ = *s++; | |
362 | else { | |
363 | UV uv = *s++; | |
364 | *d++ = (( uv >> 6) | 0xc0); | |
365 | *d++ = (( uv & 0x3f) | 0x80); | |
366 | } | |
367 | } | |
368 | *d = '\0'; | |
6662521e | 369 | *len = d-dst; |
6940069f GS |
370 | return dst; |
371 | } | |
372 | ||
a0ed51b3 | 373 | /* |
dea0fc0b | 374 | * Convert native (big-endian) or reversed (little-endian) UTF-16 to UTF-8. |
a0ed51b3 LW |
375 | * |
376 | * Destination must be pre-extended to 3/2 source. Do not use in-place. | |
377 | * We optimize for native, for obvious reasons. */ | |
378 | ||
379 | U8* | |
dea0fc0b | 380 | Perl_utf16_to_utf8(pTHX_ U8* p, U8* d, I32 bytelen, I32 *newlen) |
a0ed51b3 | 381 | { |
dea0fc0b JH |
382 | U8* pend; |
383 | U8* dstart = d; | |
384 | ||
385 | if (bytelen & 1) | |
a7867d0a | 386 | Perl_croak(aTHX_ "panic: utf16_to_utf8: odd bytelen"); |
dea0fc0b JH |
387 | |
388 | pend = p + bytelen; | |
389 | ||
a0ed51b3 | 390 | while (p < pend) { |
dea0fc0b JH |
391 | UV uv = (p[0] << 8) + p[1]; /* UTF-16BE */ |
392 | p += 2; | |
a0ed51b3 LW |
393 | if (uv < 0x80) { |
394 | *d++ = uv; | |
395 | continue; | |
396 | } | |
397 | if (uv < 0x800) { | |
398 | *d++ = (( uv >> 6) | 0xc0); | |
399 | *d++ = (( uv & 0x3f) | 0x80); | |
400 | continue; | |
401 | } | |
402 | if (uv >= 0xd800 && uv < 0xdbff) { /* surrogates */ | |
0453d815 | 403 | dTHR; |
dea0fc0b JH |
404 | UV low = *p++; |
405 | if (low < 0xdc00 || low >= 0xdfff) | |
406 | Perl_croak(aTHX_ "Malformed UTF-16 surrogate"); | |
a0ed51b3 LW |
407 | uv = ((uv - 0xd800) << 10) + (low - 0xdc00) + 0x10000; |
408 | } | |
409 | if (uv < 0x10000) { | |
410 | *d++ = (( uv >> 12) | 0xe0); | |
411 | *d++ = (((uv >> 6) & 0x3f) | 0x80); | |
412 | *d++ = (( uv & 0x3f) | 0x80); | |
413 | continue; | |
414 | } | |
415 | else { | |
416 | *d++ = (( uv >> 18) | 0xf0); | |
417 | *d++ = (((uv >> 12) & 0x3f) | 0x80); | |
418 | *d++ = (((uv >> 6) & 0x3f) | 0x80); | |
419 | *d++ = (( uv & 0x3f) | 0x80); | |
420 | continue; | |
421 | } | |
422 | } | |
dea0fc0b | 423 | *newlen = d - dstart; |
a0ed51b3 LW |
424 | return d; |
425 | } | |
426 | ||
427 | /* Note: this one is slightly destructive of the source. */ | |
428 | ||
429 | U8* | |
dea0fc0b | 430 | Perl_utf16_to_utf8_reversed(pTHX_ U8* p, U8* d, I32 bytelen, I32 *newlen) |
a0ed51b3 LW |
431 | { |
432 | U8* s = (U8*)p; | |
433 | U8* send = s + bytelen; | |
434 | while (s < send) { | |
435 | U8 tmp = s[0]; | |
436 | s[0] = s[1]; | |
437 | s[1] = tmp; | |
438 | s += 2; | |
439 | } | |
dea0fc0b | 440 | return utf16_to_utf8(p, d, bytelen, newlen); |
a0ed51b3 LW |
441 | } |
442 | ||
443 | /* for now these are all defined (inefficiently) in terms of the utf8 versions */ | |
444 | ||
445 | bool | |
864dbfa3 | 446 | Perl_is_uni_alnum(pTHX_ U32 c) |
a0ed51b3 | 447 | { |
aa6ffa16 | 448 | U8 tmpbuf[UTF8_MAXLEN]; |
a0ed51b3 LW |
449 | uv_to_utf8(tmpbuf, (UV)c); |
450 | return is_utf8_alnum(tmpbuf); | |
451 | } | |
452 | ||
453 | bool | |
b8c5462f JH |
454 | Perl_is_uni_alnumc(pTHX_ U32 c) |
455 | { | |
aa6ffa16 | 456 | U8 tmpbuf[UTF8_MAXLEN]; |
b8c5462f JH |
457 | uv_to_utf8(tmpbuf, (UV)c); |
458 | return is_utf8_alnumc(tmpbuf); | |
459 | } | |
460 | ||
461 | bool | |
864dbfa3 | 462 | Perl_is_uni_idfirst(pTHX_ U32 c) |
a0ed51b3 | 463 | { |
aa6ffa16 | 464 | U8 tmpbuf[UTF8_MAXLEN]; |
a0ed51b3 LW |
465 | uv_to_utf8(tmpbuf, (UV)c); |
466 | return is_utf8_idfirst(tmpbuf); | |
467 | } | |
468 | ||
469 | bool | |
864dbfa3 | 470 | Perl_is_uni_alpha(pTHX_ U32 c) |
a0ed51b3 | 471 | { |
aa6ffa16 | 472 | U8 tmpbuf[UTF8_MAXLEN]; |
a0ed51b3 LW |
473 | uv_to_utf8(tmpbuf, (UV)c); |
474 | return is_utf8_alpha(tmpbuf); | |
475 | } | |
476 | ||
477 | bool | |
4d61ec05 GS |
478 | Perl_is_uni_ascii(pTHX_ U32 c) |
479 | { | |
aa6ffa16 | 480 | U8 tmpbuf[UTF8_MAXLEN]; |
4d61ec05 GS |
481 | uv_to_utf8(tmpbuf, (UV)c); |
482 | return is_utf8_ascii(tmpbuf); | |
483 | } | |
484 | ||
485 | bool | |
864dbfa3 | 486 | Perl_is_uni_space(pTHX_ U32 c) |
a0ed51b3 | 487 | { |
aa6ffa16 | 488 | U8 tmpbuf[UTF8_MAXLEN]; |
a0ed51b3 LW |
489 | uv_to_utf8(tmpbuf, (UV)c); |
490 | return is_utf8_space(tmpbuf); | |
491 | } | |
492 | ||
493 | bool | |
864dbfa3 | 494 | Perl_is_uni_digit(pTHX_ U32 c) |
a0ed51b3 | 495 | { |
aa6ffa16 | 496 | U8 tmpbuf[UTF8_MAXLEN]; |
a0ed51b3 LW |
497 | uv_to_utf8(tmpbuf, (UV)c); |
498 | return is_utf8_digit(tmpbuf); | |
499 | } | |
500 | ||
501 | bool | |
864dbfa3 | 502 | Perl_is_uni_upper(pTHX_ U32 c) |
a0ed51b3 | 503 | { |
aa6ffa16 | 504 | U8 tmpbuf[UTF8_MAXLEN]; |
a0ed51b3 LW |
505 | uv_to_utf8(tmpbuf, (UV)c); |
506 | return is_utf8_upper(tmpbuf); | |
507 | } | |
508 | ||
509 | bool | |
864dbfa3 | 510 | Perl_is_uni_lower(pTHX_ U32 c) |
a0ed51b3 | 511 | { |
aa6ffa16 | 512 | U8 tmpbuf[UTF8_MAXLEN]; |
a0ed51b3 LW |
513 | uv_to_utf8(tmpbuf, (UV)c); |
514 | return is_utf8_lower(tmpbuf); | |
515 | } | |
516 | ||
517 | bool | |
b8c5462f JH |
518 | Perl_is_uni_cntrl(pTHX_ U32 c) |
519 | { | |
aa6ffa16 | 520 | U8 tmpbuf[UTF8_MAXLEN]; |
b8c5462f JH |
521 | uv_to_utf8(tmpbuf, (UV)c); |
522 | return is_utf8_cntrl(tmpbuf); | |
523 | } | |
524 | ||
525 | bool | |
526 | Perl_is_uni_graph(pTHX_ U32 c) | |
527 | { | |
aa6ffa16 | 528 | U8 tmpbuf[UTF8_MAXLEN]; |
b8c5462f JH |
529 | uv_to_utf8(tmpbuf, (UV)c); |
530 | return is_utf8_graph(tmpbuf); | |
531 | } | |
532 | ||
533 | bool | |
864dbfa3 | 534 | Perl_is_uni_print(pTHX_ U32 c) |
a0ed51b3 | 535 | { |
aa6ffa16 | 536 | U8 tmpbuf[UTF8_MAXLEN]; |
a0ed51b3 LW |
537 | uv_to_utf8(tmpbuf, (UV)c); |
538 | return is_utf8_print(tmpbuf); | |
539 | } | |
540 | ||
b8c5462f | 541 | bool |
f248d071 | 542 | Perl_is_uni_punct(pTHX_ U32 c) |
b8c5462f | 543 | { |
aa6ffa16 | 544 | U8 tmpbuf[UTF8_MAXLEN]; |
b8c5462f JH |
545 | uv_to_utf8(tmpbuf, (UV)c); |
546 | return is_utf8_punct(tmpbuf); | |
547 | } | |
548 | ||
4d61ec05 GS |
549 | bool |
550 | Perl_is_uni_xdigit(pTHX_ U32 c) | |
551 | { | |
aa6ffa16 | 552 | U8 tmpbuf[UTF8_MAXLEN]; |
4d61ec05 GS |
553 | uv_to_utf8(tmpbuf, (UV)c); |
554 | return is_utf8_xdigit(tmpbuf); | |
555 | } | |
556 | ||
a0ed51b3 | 557 | U32 |
864dbfa3 | 558 | Perl_to_uni_upper(pTHX_ U32 c) |
a0ed51b3 | 559 | { |
aa6ffa16 | 560 | U8 tmpbuf[UTF8_MAXLEN]; |
a0ed51b3 LW |
561 | uv_to_utf8(tmpbuf, (UV)c); |
562 | return to_utf8_upper(tmpbuf); | |
563 | } | |
564 | ||
565 | U32 | |
864dbfa3 | 566 | Perl_to_uni_title(pTHX_ U32 c) |
a0ed51b3 | 567 | { |
aa6ffa16 | 568 | U8 tmpbuf[UTF8_MAXLEN]; |
a0ed51b3 LW |
569 | uv_to_utf8(tmpbuf, (UV)c); |
570 | return to_utf8_title(tmpbuf); | |
571 | } | |
572 | ||
573 | U32 | |
864dbfa3 | 574 | Perl_to_uni_lower(pTHX_ U32 c) |
a0ed51b3 | 575 | { |
aa6ffa16 | 576 | U8 tmpbuf[UTF8_MAXLEN]; |
a0ed51b3 LW |
577 | uv_to_utf8(tmpbuf, (UV)c); |
578 | return to_utf8_lower(tmpbuf); | |
579 | } | |
580 | ||
581 | /* for now these all assume no locale info available for Unicode > 255 */ | |
582 | ||
583 | bool | |
864dbfa3 | 584 | Perl_is_uni_alnum_lc(pTHX_ U32 c) |
a0ed51b3 LW |
585 | { |
586 | return is_uni_alnum(c); /* XXX no locale support yet */ | |
587 | } | |
588 | ||
589 | bool | |
b8c5462f JH |
590 | Perl_is_uni_alnumc_lc(pTHX_ U32 c) |
591 | { | |
592 | return is_uni_alnumc(c); /* XXX no locale support yet */ | |
593 | } | |
594 | ||
595 | bool | |
864dbfa3 | 596 | Perl_is_uni_idfirst_lc(pTHX_ U32 c) |
a0ed51b3 LW |
597 | { |
598 | return is_uni_idfirst(c); /* XXX no locale support yet */ | |
599 | } | |
600 | ||
601 | bool | |
864dbfa3 | 602 | Perl_is_uni_alpha_lc(pTHX_ U32 c) |
a0ed51b3 LW |
603 | { |
604 | return is_uni_alpha(c); /* XXX no locale support yet */ | |
605 | } | |
606 | ||
607 | bool | |
4d61ec05 GS |
608 | Perl_is_uni_ascii_lc(pTHX_ U32 c) |
609 | { | |
610 | return is_uni_ascii(c); /* XXX no locale support yet */ | |
611 | } | |
612 | ||
613 | bool | |
864dbfa3 | 614 | Perl_is_uni_space_lc(pTHX_ U32 c) |
a0ed51b3 LW |
615 | { |
616 | return is_uni_space(c); /* XXX no locale support yet */ | |
617 | } | |
618 | ||
619 | bool | |
864dbfa3 | 620 | Perl_is_uni_digit_lc(pTHX_ U32 c) |
a0ed51b3 LW |
621 | { |
622 | return is_uni_digit(c); /* XXX no locale support yet */ | |
623 | } | |
624 | ||
625 | bool | |
864dbfa3 | 626 | Perl_is_uni_upper_lc(pTHX_ U32 c) |
a0ed51b3 LW |
627 | { |
628 | return is_uni_upper(c); /* XXX no locale support yet */ | |
629 | } | |
630 | ||
631 | bool | |
864dbfa3 | 632 | Perl_is_uni_lower_lc(pTHX_ U32 c) |
a0ed51b3 LW |
633 | { |
634 | return is_uni_lower(c); /* XXX no locale support yet */ | |
635 | } | |
636 | ||
637 | bool | |
b8c5462f JH |
638 | Perl_is_uni_cntrl_lc(pTHX_ U32 c) |
639 | { | |
640 | return is_uni_cntrl(c); /* XXX no locale support yet */ | |
641 | } | |
642 | ||
643 | bool | |
644 | Perl_is_uni_graph_lc(pTHX_ U32 c) | |
645 | { | |
646 | return is_uni_graph(c); /* XXX no locale support yet */ | |
647 | } | |
648 | ||
649 | bool | |
864dbfa3 | 650 | Perl_is_uni_print_lc(pTHX_ U32 c) |
a0ed51b3 LW |
651 | { |
652 | return is_uni_print(c); /* XXX no locale support yet */ | |
653 | } | |
654 | ||
b8c5462f JH |
655 | bool |
656 | Perl_is_uni_punct_lc(pTHX_ U32 c) | |
657 | { | |
658 | return is_uni_punct(c); /* XXX no locale support yet */ | |
659 | } | |
660 | ||
4d61ec05 GS |
661 | bool |
662 | Perl_is_uni_xdigit_lc(pTHX_ U32 c) | |
663 | { | |
664 | return is_uni_xdigit(c); /* XXX no locale support yet */ | |
665 | } | |
666 | ||
a0ed51b3 | 667 | U32 |
864dbfa3 | 668 | Perl_to_uni_upper_lc(pTHX_ U32 c) |
a0ed51b3 LW |
669 | { |
670 | return to_uni_upper(c); /* XXX no locale support yet */ | |
671 | } | |
672 | ||
673 | U32 | |
864dbfa3 | 674 | Perl_to_uni_title_lc(pTHX_ U32 c) |
a0ed51b3 LW |
675 | { |
676 | return to_uni_title(c); /* XXX no locale support yet */ | |
677 | } | |
678 | ||
679 | U32 | |
864dbfa3 | 680 | Perl_to_uni_lower_lc(pTHX_ U32 c) |
a0ed51b3 LW |
681 | { |
682 | return to_uni_lower(c); /* XXX no locale support yet */ | |
683 | } | |
684 | ||
a0ed51b3 | 685 | bool |
864dbfa3 | 686 | Perl_is_utf8_alnum(pTHX_ U8 *p) |
a0ed51b3 | 687 | { |
386d01d6 GS |
688 | if (!is_utf8_char(p)) |
689 | return FALSE; | |
a0ed51b3 | 690 | if (!PL_utf8_alnum) |
289d4f09 ML |
691 | /* NOTE: "IsWord", not "IsAlnum", since Alnum is a true |
692 | * descendant of isalnum(3), in other words, it doesn't | |
693 | * contain the '_'. --jhi */ | |
694 | PL_utf8_alnum = swash_init("utf8", "IsWord", &PL_sv_undef, 0, 0); | |
a0ed51b3 LW |
695 | return swash_fetch(PL_utf8_alnum, p); |
696 | /* return *p == '_' || is_utf8_alpha(p) || is_utf8_digit(p); */ | |
697 | #ifdef SURPRISINGLY_SLOWER /* probably because alpha is usually true */ | |
698 | if (!PL_utf8_alnum) | |
699 | PL_utf8_alnum = swash_init("utf8", "", | |
700 | sv_2mortal(newSVpv("+utf8::IsAlpha\n+utf8::IsDigit\n005F\n",0)), 0, 0); | |
701 | return swash_fetch(PL_utf8_alnum, p); | |
702 | #endif | |
703 | } | |
704 | ||
705 | bool | |
b8c5462f JH |
706 | Perl_is_utf8_alnumc(pTHX_ U8 *p) |
707 | { | |
386d01d6 GS |
708 | if (!is_utf8_char(p)) |
709 | return FALSE; | |
b8c5462f JH |
710 | if (!PL_utf8_alnum) |
711 | PL_utf8_alnum = swash_init("utf8", "IsAlnumC", &PL_sv_undef, 0, 0); | |
712 | return swash_fetch(PL_utf8_alnum, p); | |
713 | /* return is_utf8_alpha(p) || is_utf8_digit(p); */ | |
714 | #ifdef SURPRISINGLY_SLOWER /* probably because alpha is usually true */ | |
715 | if (!PL_utf8_alnum) | |
716 | PL_utf8_alnum = swash_init("utf8", "", | |
717 | sv_2mortal(newSVpv("+utf8::IsAlpha\n+utf8::IsDigit\n005F\n",0)), 0, 0); | |
718 | return swash_fetch(PL_utf8_alnum, p); | |
719 | #endif | |
720 | } | |
721 | ||
722 | bool | |
864dbfa3 | 723 | Perl_is_utf8_idfirst(pTHX_ U8 *p) |
a0ed51b3 LW |
724 | { |
725 | return *p == '_' || is_utf8_alpha(p); | |
726 | } | |
727 | ||
728 | bool | |
864dbfa3 | 729 | Perl_is_utf8_alpha(pTHX_ U8 *p) |
a0ed51b3 | 730 | { |
386d01d6 GS |
731 | if (!is_utf8_char(p)) |
732 | return FALSE; | |
a0ed51b3 | 733 | if (!PL_utf8_alpha) |
e24b16f9 | 734 | PL_utf8_alpha = swash_init("utf8", "IsAlpha", &PL_sv_undef, 0, 0); |
a0ed51b3 LW |
735 | return swash_fetch(PL_utf8_alpha, p); |
736 | } | |
737 | ||
738 | bool | |
b8c5462f JH |
739 | Perl_is_utf8_ascii(pTHX_ U8 *p) |
740 | { | |
386d01d6 GS |
741 | if (!is_utf8_char(p)) |
742 | return FALSE; | |
b8c5462f JH |
743 | if (!PL_utf8_ascii) |
744 | PL_utf8_ascii = swash_init("utf8", "IsAscii", &PL_sv_undef, 0, 0); | |
745 | return swash_fetch(PL_utf8_ascii, p); | |
746 | } | |
747 | ||
748 | bool | |
864dbfa3 | 749 | Perl_is_utf8_space(pTHX_ U8 *p) |
a0ed51b3 | 750 | { |
386d01d6 GS |
751 | if (!is_utf8_char(p)) |
752 | return FALSE; | |
a0ed51b3 | 753 | if (!PL_utf8_space) |
e24b16f9 | 754 | PL_utf8_space = swash_init("utf8", "IsSpace", &PL_sv_undef, 0, 0); |
a0ed51b3 LW |
755 | return swash_fetch(PL_utf8_space, p); |
756 | } | |
757 | ||
758 | bool | |
864dbfa3 | 759 | Perl_is_utf8_digit(pTHX_ U8 *p) |
a0ed51b3 | 760 | { |
386d01d6 GS |
761 | if (!is_utf8_char(p)) |
762 | return FALSE; | |
a0ed51b3 | 763 | if (!PL_utf8_digit) |
e24b16f9 | 764 | PL_utf8_digit = swash_init("utf8", "IsDigit", &PL_sv_undef, 0, 0); |
a0ed51b3 LW |
765 | return swash_fetch(PL_utf8_digit, p); |
766 | } | |
767 | ||
768 | bool | |
864dbfa3 | 769 | Perl_is_utf8_upper(pTHX_ U8 *p) |
a0ed51b3 | 770 | { |
386d01d6 GS |
771 | if (!is_utf8_char(p)) |
772 | return FALSE; | |
a0ed51b3 | 773 | if (!PL_utf8_upper) |
e24b16f9 | 774 | PL_utf8_upper = swash_init("utf8", "IsUpper", &PL_sv_undef, 0, 0); |
a0ed51b3 LW |
775 | return swash_fetch(PL_utf8_upper, p); |
776 | } | |
777 | ||
778 | bool | |
864dbfa3 | 779 | Perl_is_utf8_lower(pTHX_ U8 *p) |
a0ed51b3 | 780 | { |
386d01d6 GS |
781 | if (!is_utf8_char(p)) |
782 | return FALSE; | |
a0ed51b3 | 783 | if (!PL_utf8_lower) |
e24b16f9 | 784 | PL_utf8_lower = swash_init("utf8", "IsLower", &PL_sv_undef, 0, 0); |
a0ed51b3 LW |
785 | return swash_fetch(PL_utf8_lower, p); |
786 | } | |
787 | ||
788 | bool | |
b8c5462f JH |
789 | Perl_is_utf8_cntrl(pTHX_ U8 *p) |
790 | { | |
386d01d6 GS |
791 | if (!is_utf8_char(p)) |
792 | return FALSE; | |
b8c5462f JH |
793 | if (!PL_utf8_cntrl) |
794 | PL_utf8_cntrl = swash_init("utf8", "IsCntrl", &PL_sv_undef, 0, 0); | |
795 | return swash_fetch(PL_utf8_cntrl, p); | |
796 | } | |
797 | ||
798 | bool | |
799 | Perl_is_utf8_graph(pTHX_ U8 *p) | |
800 | { | |
386d01d6 GS |
801 | if (!is_utf8_char(p)) |
802 | return FALSE; | |
b8c5462f JH |
803 | if (!PL_utf8_graph) |
804 | PL_utf8_graph = swash_init("utf8", "IsGraph", &PL_sv_undef, 0, 0); | |
805 | return swash_fetch(PL_utf8_graph, p); | |
806 | } | |
807 | ||
808 | bool | |
864dbfa3 | 809 | Perl_is_utf8_print(pTHX_ U8 *p) |
a0ed51b3 | 810 | { |
386d01d6 GS |
811 | if (!is_utf8_char(p)) |
812 | return FALSE; | |
a0ed51b3 | 813 | if (!PL_utf8_print) |
e24b16f9 | 814 | PL_utf8_print = swash_init("utf8", "IsPrint", &PL_sv_undef, 0, 0); |
a0ed51b3 LW |
815 | return swash_fetch(PL_utf8_print, p); |
816 | } | |
817 | ||
818 | bool | |
b8c5462f JH |
819 | Perl_is_utf8_punct(pTHX_ U8 *p) |
820 | { | |
386d01d6 GS |
821 | if (!is_utf8_char(p)) |
822 | return FALSE; | |
b8c5462f JH |
823 | if (!PL_utf8_punct) |
824 | PL_utf8_punct = swash_init("utf8", "IsPunct", &PL_sv_undef, 0, 0); | |
825 | return swash_fetch(PL_utf8_punct, p); | |
826 | } | |
827 | ||
828 | bool | |
829 | Perl_is_utf8_xdigit(pTHX_ U8 *p) | |
830 | { | |
386d01d6 GS |
831 | if (!is_utf8_char(p)) |
832 | return FALSE; | |
b8c5462f JH |
833 | if (!PL_utf8_xdigit) |
834 | PL_utf8_xdigit = swash_init("utf8", "IsXDigit", &PL_sv_undef, 0, 0); | |
835 | return swash_fetch(PL_utf8_xdigit, p); | |
836 | } | |
837 | ||
838 | bool | |
864dbfa3 | 839 | Perl_is_utf8_mark(pTHX_ U8 *p) |
a0ed51b3 | 840 | { |
386d01d6 GS |
841 | if (!is_utf8_char(p)) |
842 | return FALSE; | |
a0ed51b3 | 843 | if (!PL_utf8_mark) |
e24b16f9 | 844 | PL_utf8_mark = swash_init("utf8", "IsM", &PL_sv_undef, 0, 0); |
a0ed51b3 LW |
845 | return swash_fetch(PL_utf8_mark, p); |
846 | } | |
847 | ||
2104c8d9 | 848 | UV |
864dbfa3 | 849 | Perl_to_utf8_upper(pTHX_ U8 *p) |
a0ed51b3 LW |
850 | { |
851 | UV uv; | |
852 | ||
853 | if (!PL_utf8_toupper) | |
e24b16f9 | 854 | PL_utf8_toupper = swash_init("utf8", "ToUpper", &PL_sv_undef, 4, 0); |
a0ed51b3 | 855 | uv = swash_fetch(PL_utf8_toupper, p); |
8e84507e | 856 | return uv ? uv : utf8_to_uv_chk(p,0,0); |
a0ed51b3 LW |
857 | } |
858 | ||
2104c8d9 | 859 | UV |
864dbfa3 | 860 | Perl_to_utf8_title(pTHX_ U8 *p) |
a0ed51b3 LW |
861 | { |
862 | UV uv; | |
863 | ||
864 | if (!PL_utf8_totitle) | |
e24b16f9 | 865 | PL_utf8_totitle = swash_init("utf8", "ToTitle", &PL_sv_undef, 4, 0); |
a0ed51b3 | 866 | uv = swash_fetch(PL_utf8_totitle, p); |
8e84507e | 867 | return uv ? uv : utf8_to_uv_chk(p,0,0); |
a0ed51b3 LW |
868 | } |
869 | ||
2104c8d9 | 870 | UV |
864dbfa3 | 871 | Perl_to_utf8_lower(pTHX_ U8 *p) |
a0ed51b3 LW |
872 | { |
873 | UV uv; | |
874 | ||
875 | if (!PL_utf8_tolower) | |
e24b16f9 | 876 | PL_utf8_tolower = swash_init("utf8", "ToLower", &PL_sv_undef, 4, 0); |
a0ed51b3 | 877 | uv = swash_fetch(PL_utf8_tolower, p); |
8e84507e | 878 | return uv ? uv : utf8_to_uv_chk(p,0,0); |
a0ed51b3 LW |
879 | } |
880 | ||
881 | /* a "swash" is a swatch hash */ | |
882 | ||
883 | SV* | |
864dbfa3 | 884 | Perl_swash_init(pTHX_ char* pkg, char* name, SV *listsv, I32 minbits, I32 none) |
a0ed51b3 LW |
885 | { |
886 | SV* retval; | |
887 | char tmpbuf[256]; | |
8e84507e | 888 | dSP; |
ce3b816e GS |
889 | |
890 | if (!gv_stashpv(pkg, 0)) { /* demand load utf8 */ | |
891 | ENTER; | |
892 | Perl_load_module(aTHX_ PERL_LOADMOD_NOIMPORT, newSVpv(pkg,0), Nullsv); | |
893 | LEAVE; | |
894 | } | |
895 | SPAGAIN; | |
a0ed51b3 LW |
896 | PUSHSTACKi(PERLSI_MAGIC); |
897 | PUSHMARK(SP); | |
898 | EXTEND(SP,5); | |
899 | PUSHs(sv_2mortal(newSVpvn(pkg, strlen(pkg)))); | |
900 | PUSHs(sv_2mortal(newSVpvn(name, strlen(name)))); | |
901 | PUSHs(listsv); | |
902 | PUSHs(sv_2mortal(newSViv(minbits))); | |
903 | PUSHs(sv_2mortal(newSViv(none))); | |
904 | PUTBACK; | |
905 | ENTER; | |
906 | SAVEI32(PL_hints); | |
907 | PL_hints = 0; | |
908 | save_re_context(); | |
e24b16f9 | 909 | if (PL_curcop == &PL_compiling) /* XXX ought to be handled by lex_start */ |
a0ed51b3 | 910 | strncpy(tmpbuf, PL_tokenbuf, sizeof tmpbuf); |
864dbfa3 | 911 | if (call_method("SWASHNEW", G_SCALAR)) |
8e84507e | 912 | retval = newSVsv(*PL_stack_sp--); |
a0ed51b3 | 913 | else |
e24b16f9 | 914 | retval = &PL_sv_undef; |
a0ed51b3 LW |
915 | LEAVE; |
916 | POPSTACK; | |
e24b16f9 | 917 | if (PL_curcop == &PL_compiling) { |
a0ed51b3 | 918 | strncpy(PL_tokenbuf, tmpbuf, sizeof tmpbuf); |
e24b16f9 | 919 | PL_curcop->op_private = PL_hints; |
a0ed51b3 LW |
920 | } |
921 | if (!SvROK(retval) || SvTYPE(SvRV(retval)) != SVt_PVHV) | |
cea2e8a9 | 922 | Perl_croak(aTHX_ "SWASHNEW didn't return an HV ref"); |
a0ed51b3 LW |
923 | return retval; |
924 | } | |
925 | ||
926 | UV | |
864dbfa3 | 927 | Perl_swash_fetch(pTHX_ SV *sv, U8 *ptr) |
a0ed51b3 LW |
928 | { |
929 | HV* hv = (HV*)SvRV(sv); | |
930 | U32 klen = UTF8SKIP(ptr) - 1; | |
931 | U32 off = ptr[klen] & 127; /* NB: 64 bit always 0 when len > 1 */ | |
932 | STRLEN slen; | |
933 | STRLEN needents = (klen ? 64 : 128); | |
dfe13c55 | 934 | U8 *tmps; |
a0ed51b3 LW |
935 | U32 bit; |
936 | SV *retval; | |
937 | ||
938 | /* | |
939 | * This single-entry cache saves about 1/3 of the utf8 overhead in test | |
940 | * suite. (That is, only 7-8% overall over just a hash cache. Still, | |
941 | * it's nothing to sniff at.) Pity we usually come through at least | |
942 | * two function calls to get here... | |
943 | * | |
944 | * NB: this code assumes that swatches are never modified, once generated! | |
945 | */ | |
946 | ||
947 | if (hv == PL_last_swash_hv && | |
948 | klen == PL_last_swash_klen && | |
12ae5dfc | 949 | (!klen || memEQ((char *)ptr,(char *)PL_last_swash_key,klen)) ) |
a0ed51b3 LW |
950 | { |
951 | tmps = PL_last_swash_tmps; | |
952 | slen = PL_last_swash_slen; | |
953 | } | |
954 | else { | |
955 | /* Try our second-level swatch cache, kept in a hash. */ | |
dfe13c55 | 956 | SV** svp = hv_fetch(hv, (char*)ptr, klen, FALSE); |
a0ed51b3 LW |
957 | |
958 | /* If not cached, generate it via utf8::SWASHGET */ | |
dfe13c55 | 959 | if (!svp || !SvPOK(*svp) || !(tmps = (U8*)SvPV(*svp, slen))) { |
a0ed51b3 LW |
960 | dSP; |
961 | ENTER; | |
962 | SAVETMPS; | |
963 | save_re_context(); | |
964 | PUSHSTACKi(PERLSI_MAGIC); | |
965 | PUSHMARK(SP); | |
966 | EXTEND(SP,3); | |
967 | PUSHs((SV*)sv); | |
8e84507e | 968 | PUSHs(sv_2mortal(newSViv(utf8_to_uv_chk(ptr, 0, 0) & ~(needents - 1)))); |
a0ed51b3 LW |
969 | PUSHs(sv_2mortal(newSViv(needents))); |
970 | PUTBACK; | |
864dbfa3 | 971 | if (call_method("SWASHGET", G_SCALAR)) |
8e84507e | 972 | retval = newSVsv(*PL_stack_sp--); |
a0ed51b3 | 973 | else |
e24b16f9 | 974 | retval = &PL_sv_undef; |
a0ed51b3 LW |
975 | POPSTACK; |
976 | FREETMPS; | |
977 | LEAVE; | |
e24b16f9 GS |
978 | if (PL_curcop == &PL_compiling) |
979 | PL_curcop->op_private = PL_hints; | |
a0ed51b3 | 980 | |
dfe13c55 | 981 | svp = hv_store(hv, (char*)ptr, klen, retval, 0); |
a0ed51b3 | 982 | |
dfe13c55 | 983 | if (!svp || !(tmps = (U8*)SvPV(*svp, slen)) || slen < 8) |
cea2e8a9 | 984 | Perl_croak(aTHX_ "SWASHGET didn't return result of proper length"); |
a0ed51b3 LW |
985 | } |
986 | ||
987 | PL_last_swash_hv = hv; | |
988 | PL_last_swash_klen = klen; | |
989 | PL_last_swash_tmps = tmps; | |
990 | PL_last_swash_slen = slen; | |
991 | if (klen) | |
992 | Copy(ptr, PL_last_swash_key, klen, U8); | |
993 | } | |
994 | ||
995 | switch ((slen << 3) / needents) { | |
996 | case 1: | |
997 | bit = 1 << (off & 7); | |
998 | off >>= 3; | |
999 | return (tmps[off] & bit) != 0; | |
1000 | case 8: | |
1001 | return tmps[off]; | |
1002 | case 16: | |
1003 | off <<= 1; | |
1004 | return (tmps[off] << 8) + tmps[off + 1] ; | |
1005 | case 32: | |
1006 | off <<= 2; | |
1007 | return (tmps[off] << 24) + (tmps[off+1] << 16) + (tmps[off+2] << 8) + tmps[off + 3] ; | |
1008 | } | |
cea2e8a9 | 1009 | Perl_croak(aTHX_ "panic: swash_fetch"); |
a0ed51b3 LW |
1010 | return 0; |
1011 | } |