Commit | Line | Data |
2c674647 |
1 | #include "EXTERN.h" |
2 | #include "perl.h" |
3 | #include "XSUB.h" |
2f2b4ff2 |
4 | #define U8 U8 |
5 | #include "encode.h" |
6 | #include "iso8859.h" |
7 | #include "EBCDIC.h" |
8 | #include "Symbols.h" |
2c674647 |
9 | |
67e989fb |
10 | #define UNIMPLEMENTED(x,y) y x (SV *sv, char *encoding) { \ |
2f5768b8 |
11 | Perl_croak(aTHX_ "panic_unimplemented"); \ |
4a83738a |
12 | return (y)0; /* fool picky compilers */ \ |
87714904 |
13 | } |
67e989fb |
14 | UNIMPLEMENTED(_encoded_utf8_to_bytes, I32) |
15 | UNIMPLEMENTED(_encoded_bytes_to_utf8, I32) |
16 | |
33af2bc7 |
17 | #ifdef USE_PERLIO |
72e44f29 |
18 | /* Define an encoding "layer" in the perliol.h sense. |
19 | The layer defined here "inherits" in an object-oriented sense from the |
20 | "perlio" layer with its PerlIOBuf_* "methods". |
21 | The implementation is particularly efficient as until Encode settles down |
22 | there is no point in tryint to tune it. |
23 | |
24 | The layer works by overloading the "fill" and "flush" methods. |
25 | |
26 | "fill" calls "SUPER::fill" in perl terms, then calls the encode OO perl API |
27 | to convert the encoded data to UTF-8 form, then copies it back to the |
28 | buffer. The "base class's" read methods then see the UTF-8 data. |
29 | |
30 | "flush" transforms the UTF-8 data deposited by the "base class's write |
31 | method in the buffer back into the encoded form using the encode OO perl API, |
32 | then copies data back into the buffer and calls "SUPER::flush. |
33 | |
34 | Note that "flush" is _also_ called for read mode - we still do the (back)-translate |
35 | so that the the base class's "flush" sees the correct number of encoded chars |
36 | for positioning the seek pointer. (This double translation is the worst performance |
37 | issue - particularly with all-perl encode engine.) |
38 | |
39 | */ |
40 | |
41 | |
33af2bc7 |
42 | #include "perliol.h" |
43 | |
44 | typedef struct |
45 | { |
46 | PerlIOBuf base; /* PerlIOBuf stuff */ |
47 | SV * bufsv; |
48 | SV * enc; |
49 | } PerlIOEncode; |
50 | |
51 | |
52 | IV |
53 | PerlIOEncode_pushed(PerlIO *f, const char *mode,const char *arg,STRLEN len) |
54 | { |
55 | PerlIOEncode *e = PerlIOSelf(f,PerlIOEncode); |
56 | dTHX; |
57 | dSP; |
58 | IV code; |
59 | code = PerlIOBuf_pushed(f,mode,Nullch,0); |
60 | ENTER; |
61 | SAVETMPS; |
62 | PUSHMARK(sp); |
63 | XPUSHs(sv_2mortal(newSVpv("Encode",0))); |
64 | XPUSHs(sv_2mortal(newSVpvn(arg,len))); |
65 | PUTBACK; |
66 | if (perl_call_method("getEncoding",G_SCALAR) != 1) |
52744f63 |
67 | { |
68 | /* should never happen */ |
69 | Perl_die(aTHX_ "Encode::getEncoding did not return a value"); |
70 | return -1; |
71 | } |
33af2bc7 |
72 | SPAGAIN; |
73 | e->enc = POPs; |
74 | PUTBACK; |
75 | if (!SvROK(e->enc)) |
52744f63 |
76 | { |
77 | e->enc = Nullsv; |
78 | errno = EINVAL; |
79 | Perl_warner(aTHX_ WARN_IO, "Cannot find encoding \"%.*s\"", (int) len, arg); |
80 | return -1; |
81 | } |
33af2bc7 |
82 | SvREFCNT_inc(e->enc); |
83 | FREETMPS; |
84 | LEAVE; |
85 | PerlIOBase(f)->flags |= PERLIO_F_UTF8; |
86 | return code; |
87 | } |
88 | |
89 | IV |
90 | PerlIOEncode_popped(PerlIO *f) |
91 | { |
92 | PerlIOEncode *e = PerlIOSelf(f,PerlIOEncode); |
93 | dTHX; |
94 | if (e->enc) |
95 | { |
96 | SvREFCNT_dec(e->enc); |
97 | e->enc = Nullsv; |
98 | } |
99 | if (e->bufsv) |
100 | { |
101 | SvREFCNT_dec(e->bufsv); |
102 | e->bufsv = Nullsv; |
103 | } |
104 | return 0; |
105 | } |
106 | |
107 | STDCHAR * |
108 | PerlIOEncode_get_base(PerlIO *f) |
109 | { |
110 | PerlIOEncode *e = PerlIOSelf(f,PerlIOEncode); |
111 | dTHX; |
112 | if (!e->base.bufsiz) |
113 | e->base.bufsiz = 1024; |
114 | if (!e->bufsv) |
115 | { |
116 | e->bufsv = newSV(e->base.bufsiz); |
117 | sv_setpvn(e->bufsv,"",0); |
118 | } |
62e8870c |
119 | e->base.buf = (STDCHAR *)SvPVX(e->bufsv); |
33af2bc7 |
120 | if (!e->base.ptr) |
121 | e->base.ptr = e->base.buf; |
122 | if (!e->base.end) |
123 | e->base.end = e->base.buf; |
124 | if (e->base.ptr < e->base.buf || e->base.ptr > e->base.buf+SvLEN(e->bufsv)) |
125 | { |
126 | Perl_warn(aTHX_ " ptr %p(%p)%p", |
127 | e->base.buf,e->base.ptr,e->base.buf+SvLEN(e->bufsv)); |
128 | abort(); |
129 | } |
130 | if (SvLEN(e->bufsv) < e->base.bufsiz) |
131 | { |
132 | SSize_t poff = e->base.ptr - e->base.buf; |
133 | SSize_t eoff = e->base.end - e->base.buf; |
62e8870c |
134 | e->base.buf = (STDCHAR *)SvGROW(e->bufsv,e->base.bufsiz); |
33af2bc7 |
135 | e->base.ptr = e->base.buf + poff; |
136 | e->base.end = e->base.buf + eoff; |
137 | } |
138 | if (e->base.ptr < e->base.buf || e->base.ptr > e->base.buf+SvLEN(e->bufsv)) |
139 | { |
140 | Perl_warn(aTHX_ " ptr %p(%p)%p", |
141 | e->base.buf,e->base.ptr,e->base.buf+SvLEN(e->bufsv)); |
142 | abort(); |
143 | } |
144 | return e->base.buf; |
145 | } |
146 | |
33af2bc7 |
147 | IV |
148 | PerlIOEncode_fill(PerlIO *f) |
149 | { |
150 | PerlIOEncode *e = PerlIOSelf(f,PerlIOEncode); |
151 | dTHX; |
152 | dSP; |
153 | IV code; |
33af2bc7 |
154 | code = PerlIOBuf_fill(f); |
155 | if (code == 0) |
156 | { |
157 | SV *uni; |
72e44f29 |
158 | STRLEN len; |
159 | char *s; |
160 | /* Set SV that is the buffer to be buf..ptr */ |
33af2bc7 |
161 | SvCUR_set(e->bufsv, e->base.end - e->base.buf); |
162 | SvUTF8_off(e->bufsv); |
163 | ENTER; |
164 | SAVETMPS; |
165 | PUSHMARK(sp); |
166 | XPUSHs(e->enc); |
167 | XPUSHs(e->bufsv); |
168 | XPUSHs(&PL_sv_yes); |
169 | PUTBACK; |
50d26985 |
170 | if (perl_call_method("decode",G_SCALAR) != 1) |
33af2bc7 |
171 | code = -1; |
172 | SPAGAIN; |
173 | uni = POPs; |
174 | PUTBACK; |
72e44f29 |
175 | /* Now get translated string (forced to UTF-8) and copy back to buffer |
176 | don't use sv_setsv as that may "steal" PV from returned temp |
177 | and so free() our known-large-enough buffer. |
178 | sv_setpvn() should do but let us do it long hand. |
179 | */ |
180 | s = SvPVutf8(uni,len); |
181 | if (s != SvPVX(e->bufsv)) |
182 | { |
62e8870c |
183 | e->base.buf = (STDCHAR *)SvGROW(e->bufsv,len); |
72e44f29 |
184 | Move(s,e->base.buf,len,char); |
185 | SvCUR_set(e->bufsv,len); |
186 | } |
187 | SvUTF8_on(e->bufsv); |
188 | e->base.end = e->base.buf+len; |
33af2bc7 |
189 | e->base.ptr = e->base.buf; |
190 | FREETMPS; |
191 | LEAVE; |
192 | } |
193 | return code; |
194 | } |
195 | |
196 | IV |
197 | PerlIOEncode_flush(PerlIO *f) |
198 | { |
199 | PerlIOEncode *e = PerlIOSelf(f,PerlIOEncode); |
200 | IV code = 0; |
201 | dTHX; |
202 | if (e->bufsv && (PerlIOBase(f)->flags & (PERLIO_F_RDBUF|PERLIO_F_WRBUF))) |
203 | { |
204 | dSP; |
205 | SV *str; |
206 | char *s; |
207 | STRLEN len; |
72e44f29 |
208 | SSize_t left = 0; |
209 | if (PerlIOBase(f)->flags & PERLIO_F_RDBUF) |
210 | { |
211 | /* This is really just a flag to see if we took all the data, if |
212 | we did PerlIOBase_flush avoids a seek to lower layer. |
213 | Need to revisit if we start getting clever with unreads or seeks-in-buffer |
214 | */ |
215 | left = e->base.end - e->base.ptr; |
216 | } |
33af2bc7 |
217 | ENTER; |
218 | SAVETMPS; |
219 | PUSHMARK(sp); |
220 | XPUSHs(e->enc); |
72e44f29 |
221 | SvCUR_set(e->bufsv, e->base.ptr - e->base.buf); |
33af2bc7 |
222 | SvUTF8_on(e->bufsv); |
223 | XPUSHs(e->bufsv); |
224 | XPUSHs(&PL_sv_yes); |
225 | PUTBACK; |
50d26985 |
226 | if (perl_call_method("encode",G_SCALAR) != 1) |
33af2bc7 |
227 | code = -1; |
228 | SPAGAIN; |
229 | str = POPs; |
230 | PUTBACK; |
72e44f29 |
231 | s = SvPV(str,len); |
232 | if (s != SvPVX(e->bufsv)) |
233 | { |
62e8870c |
234 | e->base.buf = (STDCHAR *)SvGROW(e->bufsv,len); |
72e44f29 |
235 | Move(s,e->base.buf,len,char); |
236 | SvCUR_set(e->bufsv,len); |
237 | } |
33af2bc7 |
238 | SvUTF8_off(e->bufsv); |
72e44f29 |
239 | e->base.ptr = e->base.buf+len; |
240 | /* restore end != ptr as inequality is used by PerlIOBuf_flush in read case */ |
241 | e->base.end = e->base.ptr + left; |
33af2bc7 |
242 | FREETMPS; |
243 | LEAVE; |
244 | if (PerlIOBuf_flush(f) != 0) |
245 | code = -1; |
246 | } |
247 | return code; |
248 | } |
249 | |
250 | IV |
251 | PerlIOEncode_close(PerlIO *f) |
252 | { |
253 | PerlIOEncode *e = PerlIOSelf(f,PerlIOEncode); |
254 | IV code = PerlIOBase_close(f); |
255 | dTHX; |
256 | if (e->bufsv) |
257 | { |
258 | SvREFCNT_dec(e->bufsv); |
259 | e->bufsv = Nullsv; |
260 | } |
261 | e->base.buf = NULL; |
262 | e->base.ptr = NULL; |
263 | e->base.end = NULL; |
264 | PerlIOBase(f)->flags &= ~(PERLIO_F_RDBUF|PERLIO_F_WRBUF); |
265 | return code; |
266 | } |
267 | |
72e44f29 |
268 | Off_t |
269 | PerlIOEncode_tell(PerlIO *f) |
270 | { |
271 | PerlIOBuf *b = PerlIOSelf(f,PerlIOBuf); |
272 | /* Unfortunately the only way to get a postion is to back-translate, |
273 | the UTF8-bytes we have buf..ptr and adjust accordingly. |
274 | But we will try and save any unread data in case stream |
275 | is un-seekable. |
276 | */ |
277 | if ((PerlIOBase(f)->flags & PERLIO_F_RDBUF) && b->ptr < b->end) |
278 | { |
279 | Size_t count = b->end - b->ptr; |
280 | PerlIO_push(f,&PerlIO_pending,"r",Nullch,0); |
281 | /* Save what we have left to read */ |
282 | PerlIOSelf(f,PerlIOBuf)->bufsiz = count; |
283 | PerlIO_unread(f,b->ptr,count); |
284 | /* There isn't any unread data - we just saved it - so avoid the lower seek */ |
285 | b->end = b->ptr; |
286 | /* Flush ourselves - now one layer down, |
287 | this does the back translate and adjusts position |
288 | */ |
289 | PerlIO_flush(PerlIONext(f)); |
290 | /* Set position of the saved data */ |
291 | PerlIOSelf(f,PerlIOBuf)->posn = b->posn; |
292 | } |
293 | else |
294 | { |
295 | PerlIO_flush(f); |
296 | } |
297 | return b->posn; |
298 | } |
299 | |
33af2bc7 |
300 | PerlIO_funcs PerlIO_encode = { |
72e44f29 |
301 | "encoding", |
33af2bc7 |
302 | sizeof(PerlIOEncode), |
303 | PERLIO_K_BUFFERED, |
304 | PerlIOBase_fileno, |
305 | PerlIOBuf_fdopen, |
306 | PerlIOBuf_open, |
307 | PerlIOBuf_reopen, |
308 | PerlIOEncode_pushed, |
309 | PerlIOEncode_popped, |
310 | PerlIOBuf_read, |
311 | PerlIOBuf_unread, |
312 | PerlIOBuf_write, |
313 | PerlIOBuf_seek, |
72e44f29 |
314 | PerlIOEncode_tell, |
33af2bc7 |
315 | PerlIOEncode_close, |
316 | PerlIOEncode_flush, |
317 | PerlIOEncode_fill, |
318 | PerlIOBase_eof, |
319 | PerlIOBase_error, |
320 | PerlIOBase_clearerr, |
321 | PerlIOBuf_setlinebuf, |
322 | PerlIOEncode_get_base, |
323 | PerlIOBuf_bufsiz, |
324 | PerlIOBuf_get_ptr, |
325 | PerlIOBuf_get_cnt, |
326 | PerlIOBuf_set_ptrcnt, |
327 | }; |
328 | #endif |
329 | |
2f2b4ff2 |
330 | void |
331 | Encode_Define(pTHX_ encode_t *enc) |
332 | { |
333 | HV *hash = get_hv("Encode::encoding",GV_ADD|GV_ADDMULTI); |
334 | HV *stash = gv_stashpv("Encode::XS", TRUE); |
335 | SV *sv = sv_bless(newRV_noinc(newSViv(PTR2IV(enc))),stash); |
dcda1f94 |
336 | int i = 0; |
337 | while (enc->name[i]) |
338 | { |
339 | const char *name = enc->name[i++]; |
340 | hv_store(hash,name,strlen(name),SvREFCNT_inc(sv),0); |
341 | } |
342 | SvREFCNT_dec(sv); |
2f2b4ff2 |
343 | } |
344 | |
183a2d84 |
345 | void call_failure (SV *routine, U8* done, U8* dest, U8* orig) {} |
67e989fb |
346 | |
2f2b4ff2 |
347 | static SV * |
348 | encode_method(pTHX_ encode_t *enc, encpage_t *dir, SV *src, int check) |
349 | { |
350 | STRLEN slen; |
351 | U8 *s = (U8 *) SvPV(src,slen); |
352 | SV *dst = sv_2mortal(newSV(2*slen+1)); |
353 | if (slen) |
354 | { |
355 | U8 *d = (U8 *) SvGROW(dst, 2*slen+1); |
356 | STRLEN dlen = SvLEN(dst); |
357 | int code; |
9b37254d |
358 | while ((code = do_encode(dir,s,&slen,d,dlen,&dlen,!check))) |
2f2b4ff2 |
359 | { |
360 | SvCUR_set(dst,dlen); |
361 | SvPOK_on(dst); |
9b37254d |
362 | |
363 | if (code == ENCODE_FALLBACK) |
364 | break; |
365 | |
2f2b4ff2 |
366 | switch(code) |
367 | { |
368 | case ENCODE_NOSPACE: |
369 | { |
370 | STRLEN need = (slen) ? (SvLEN(dst)*SvCUR(src)/slen) : (dlen + UTF8_MAXLEN); |
371 | if (need <= SvLEN(dst)) |
372 | need += UTF8_MAXLEN; |
373 | d = (U8 *) SvGROW(dst, need); |
374 | dlen = SvLEN(dst); |
375 | slen = SvCUR(src); |
376 | break; |
377 | } |
378 | |
379 | case ENCODE_NOREP: |
380 | if (dir == enc->f_utf8) |
381 | { |
382 | if (!check && ckWARN_d(WARN_UTF8)) |
383 | { |
384 | STRLEN clen; |
385 | UV ch = utf8_to_uv(s+slen,(SvCUR(src)-slen),&clen,0); |
dcda1f94 |
386 | Perl_warner(aTHX_ WARN_UTF8, "\"\\x{%"UVxf"}\" does not map to %s", ch, enc->name[0]); |
2f2b4ff2 |
387 | /* FIXME: Skip over the character, copy in replacement and continue |
388 | * but that is messy so for now just fail. |
389 | */ |
390 | return &PL_sv_undef; |
391 | } |
392 | else |
393 | { |
394 | return &PL_sv_undef; |
395 | } |
396 | } |
397 | else |
398 | { |
399 | /* UTF-8 is supposed to be "Universal" so should not happen */ |
400 | Perl_croak(aTHX_ "%s '%.*s' does not map to UTF-8", |
dcda1f94 |
401 | enc->name[0], (int)(SvCUR(src)-slen),s+slen); |
2f2b4ff2 |
402 | } |
403 | break; |
404 | |
405 | case ENCODE_PARTIAL: |
406 | if (!check && ckWARN_d(WARN_UTF8)) |
407 | { |
408 | Perl_warner(aTHX_ WARN_UTF8, "Partial %s character", |
dcda1f94 |
409 | (dir == enc->f_utf8) ? "UTF-8" : enc->name[0]); |
2f2b4ff2 |
410 | } |
411 | return &PL_sv_undef; |
412 | |
413 | default: |
414 | Perl_croak(aTHX_ "Unexpected code %d converting %s %s", |
dcda1f94 |
415 | code, (dir == enc->f_utf8) ? "to" : "from",enc->name[0]); |
2f2b4ff2 |
416 | return &PL_sv_undef; |
417 | } |
418 | } |
419 | SvCUR_set(dst,dlen); |
420 | SvPOK_on(dst); |
421 | if (check) |
422 | { |
423 | if (slen < SvCUR(src)) |
424 | { |
425 | Move(s+slen,s,SvCUR(src)-slen,U8); |
426 | } |
427 | SvCUR_set(src,SvCUR(src)-slen); |
428 | } |
429 | } |
430 | return dst; |
431 | } |
432 | |
7525822f |
433 | MODULE = Encode PACKAGE = Encode PREFIX = sv_ |
434 | |
435 | void |
436 | valid_utf8(sv) |
437 | SV * sv |
438 | CODE: |
439 | { |
440 | STRLEN len; |
441 | char *s = SvPV(sv,len); |
51516b5a |
442 | if (!SvUTF8(sv) || is_utf8_string((U8*)s,len)) |
7525822f |
443 | XSRETURN_YES; |
444 | else |
445 | XSRETURN_NO; |
446 | } |
447 | |
448 | void |
449 | sv_utf8_encode(sv) |
450 | SV * sv |
451 | |
452 | bool |
453 | sv_utf8_decode(sv) |
454 | SV * sv |
455 | |
4411f3b6 |
456 | STRLEN |
7525822f |
457 | sv_utf8_upgrade(sv) |
458 | SV * sv |
459 | |
460 | bool |
461 | sv_utf8_downgrade(sv,failok=0) |
462 | SV * sv |
463 | bool failok |
464 | |
50d26985 |
465 | MODULE = Encode PACKAGE = Encode::XS PREFIX = Method_ |
2f2b4ff2 |
466 | |
467 | PROTOTYPES: ENABLE |
468 | |
469 | void |
50d26985 |
470 | Method_decode(obj,src,check = 0) |
2f2b4ff2 |
471 | SV * obj |
472 | SV * src |
473 | int check |
474 | CODE: |
475 | { |
476 | encode_t *enc = INT2PTR(encode_t *, SvIV(SvRV(obj))); |
477 | ST(0) = encode_method(aTHX_ enc, enc->t_utf8, src, check); |
478 | SvUTF8_on(ST(0)); |
479 | XSRETURN(1); |
480 | } |
481 | |
482 | void |
50d26985 |
483 | Method_encode(obj,src,check = 0) |
2f2b4ff2 |
484 | SV * obj |
485 | SV * src |
486 | int check |
487 | CODE: |
488 | { |
489 | encode_t *enc = INT2PTR(encode_t *, SvIV(SvRV(obj))); |
490 | sv_utf8_upgrade(src); |
491 | ST(0) = encode_method(aTHX_ enc, enc->f_utf8, src, check); |
492 | XSRETURN(1); |
493 | } |
494 | |
67e989fb |
495 | MODULE = Encode PACKAGE = Encode |
2c674647 |
496 | |
497 | PROTOTYPES: ENABLE |
498 | |
67e989fb |
499 | I32 |
2c674647 |
500 | _bytes_to_utf8(sv, ...) |
67e989fb |
501 | SV * sv |
2c674647 |
502 | CODE: |
67e989fb |
503 | { |
504 | SV * encoding = items == 2 ? ST(1) : Nullsv; |
505 | |
506 | if (encoding) |
507 | RETVAL = _encoded_bytes_to_utf8(sv, SvPV_nolen(encoding)); |
508 | else { |
509 | STRLEN len; |
183a2d84 |
510 | U8* s = (U8*)SvPV(sv, len); |
67e989fb |
511 | U8* converted; |
512 | |
513 | converted = bytes_to_utf8(s, &len); /* This allocs */ |
183a2d84 |
514 | sv_setpvn(sv, (char *)converted, len); |
67e989fb |
515 | SvUTF8_on(sv); /* XXX Should we? */ |
516 | Safefree(converted); /* ... so free it */ |
517 | RETVAL = len; |
518 | } |
519 | } |
2c674647 |
520 | OUTPUT: |
67e989fb |
521 | RETVAL |
2c674647 |
522 | |
67e989fb |
523 | I32 |
2c674647 |
524 | _utf8_to_bytes(sv, ...) |
67e989fb |
525 | SV * sv |
2c674647 |
526 | CODE: |
67e989fb |
527 | { |
528 | SV * to = items > 1 ? ST(1) : Nullsv; |
529 | SV * check = items > 2 ? ST(2) : Nullsv; |
87714904 |
530 | |
67e989fb |
531 | if (to) |
532 | RETVAL = _encoded_utf8_to_bytes(sv, SvPV_nolen(to)); |
533 | else { |
67e989fb |
534 | STRLEN len; |
b113ac0e |
535 | U8 *s = (U8*)SvPV(sv, len); |
67e989fb |
536 | |
537 | if (SvTRUE(check)) { |
538 | /* Must do things the slow way */ |
539 | U8 *dest; |
87714904 |
540 | U8 *src = (U8*)savepv((char *)s); /* We need a copy to pass to check() */ |
67e989fb |
541 | U8 *send = s + len; |
542 | |
543 | New(83, dest, len, U8); /* I think */ |
544 | |
545 | while (s < send) { |
546 | if (*s < 0x80) |
547 | *dest++ = *s++; |
548 | else { |
b113ac0e |
549 | STRLEN ulen; |
550 | UV uv = *s++; |
87714904 |
551 | |
67e989fb |
552 | /* Have to do it all ourselves because of error routine, |
553 | aargh. */ |
554 | if (!(uv & 0x40)) |
555 | goto failure; |
556 | if (!(uv & 0x20)) { ulen = 2; uv &= 0x1f; } |
557 | else if (!(uv & 0x10)) { ulen = 3; uv &= 0x0f; } |
558 | else if (!(uv & 0x08)) { ulen = 4; uv &= 0x07; } |
559 | else if (!(uv & 0x04)) { ulen = 5; uv &= 0x03; } |
560 | else if (!(uv & 0x02)) { ulen = 6; uv &= 0x01; } |
561 | else if (!(uv & 0x01)) { ulen = 7; uv = 0; } |
562 | else { ulen = 13; uv = 0; } |
87714904 |
563 | |
67e989fb |
564 | /* Note change to utf8.c variable naming, for variety */ |
565 | while (ulen--) { |
566 | if ((*s & 0xc0) != 0x80) |
567 | goto failure; |
87714904 |
568 | |
67e989fb |
569 | else |
570 | uv = (uv << 6) | (*s++ & 0x3f); |
87714904 |
571 | } |
67e989fb |
572 | if (uv > 256) { |
573 | failure: |
574 | call_failure(check, s, dest, src); |
575 | /* Now what happens? */ |
576 | } |
577 | *dest++ = (U8)uv; |
578 | } |
579 | } |
580 | } else |
581 | RETVAL = (utf8_to_bytes(s, &len) ? len : 0); |
582 | } |
2c674647 |
583 | } |
584 | OUTPUT: |
585 | RETVAL |
586 | |
2c674647 |
587 | bool |
4411f3b6 |
588 | is_utf8(sv, check = FALSE) |
589 | SV * sv |
590 | bool check |
2c674647 |
591 | CODE: |
592 | { |
2c674647 |
593 | if (SvPOK(sv)) { |
4411f3b6 |
594 | RETVAL = SvUTF8(sv) ? TRUE : FALSE; |
2c674647 |
595 | if (RETVAL && |
4411f3b6 |
596 | check && |
2c674647 |
597 | !is_utf8_string((U8*)SvPVX(sv), SvCUR(sv))) |
598 | RETVAL = FALSE; |
599 | } else { |
600 | RETVAL = FALSE; |
601 | } |
602 | } |
603 | OUTPUT: |
604 | RETVAL |
605 | |
606 | SV * |
4411f3b6 |
607 | _utf8_on(sv) |
2c674647 |
608 | SV * sv |
609 | CODE: |
610 | { |
611 | if (SvPOK(sv)) { |
87714904 |
612 | SV *rsv = newSViv(SvUTF8(sv)); |
2c674647 |
613 | RETVAL = rsv; |
614 | SvUTF8_on(sv); |
615 | } else { |
616 | RETVAL = &PL_sv_undef; |
617 | } |
618 | } |
619 | OUTPUT: |
620 | RETVAL |
621 | |
622 | SV * |
4411f3b6 |
623 | _utf8_off(sv) |
2c674647 |
624 | SV * sv |
625 | CODE: |
626 | { |
627 | if (SvPOK(sv)) { |
87714904 |
628 | SV *rsv = newSViv(SvUTF8(sv)); |
2c674647 |
629 | RETVAL = rsv; |
630 | SvUTF8_off(sv); |
631 | } else { |
632 | RETVAL = &PL_sv_undef; |
633 | } |
634 | } |
635 | OUTPUT: |
636 | RETVAL |
637 | |
33af2bc7 |
638 | BOOT: |
639 | { |
640 | #ifdef USE_PERLIO |
641 | PerlIO_define_layer(&PerlIO_encode); |
642 | #endif |
2f2b4ff2 |
643 | #include "iso8859.def" |
644 | #include "EBCDIC.def" |
645 | #include "Symbols.def" |
33af2bc7 |
646 | } |