Commit | Line | Data |
85982a32 |
1 | /* |
b5ab1f6f |
2 | $Id: Encode.xs,v 1.56 2003/06/18 09:29:02 dankogai Exp $ |
85982a32 |
3 | */ |
4 | |
fcf2db38 |
5 | #define PERL_NO_GET_CONTEXT |
2c674647 |
6 | #include "EXTERN.h" |
7 | #include "perl.h" |
8 | #include "XSUB.h" |
2f2b4ff2 |
9 | #define U8 U8 |
10 | #include "encode.h" |
10c5ecbb |
11 | |
12 | # define PERLIO_MODNAME "PerlIO::encoding" |
0ab8f81e |
13 | # define PERLIO_FILENAME "PerlIO/encoding.pm" |
aae85ceb |
14 | |
85982a32 |
15 | /* set 1 or more to profile. t/encoding.t dumps core because of |
16 | Perl_warner and PerlIO don't work well */ |
c6a7db43 |
17 | #define ENCODE_XS_PROFILE 0 |
39cf9a5e |
18 | |
85982a32 |
19 | /* set 0 to disable floating point to calculate buffer size for |
20 | encode_method(). 1 is recommended. 2 restores NI-S original */ |
c6a7db43 |
21 | #define ENCODE_XS_USEFP 1 |
39cf9a5e |
22 | |
fcf2db38 |
23 | #define UNIMPLEMENTED(x,y) y x (SV *sv, char *encoding) {dTHX; \ |
2f5768b8 |
24 | Perl_croak(aTHX_ "panic_unimplemented"); \ |
4a83738a |
25 | return (y)0; /* fool picky compilers */ \ |
87714904 |
26 | } |
85982a32 |
27 | /**/ |
011b2d2f |
28 | |
7e9a885a |
29 | UNIMPLEMENTED(_encoded_utf8_to_bytes, I32) |
30 | UNIMPLEMENTED(_encoded_bytes_to_utf8, I32) |
33af2bc7 |
31 | |
b0b300a3 |
32 | void |
aa0053b7 |
33 | Encode_XSEncoding(pTHX_ encode_t * enc) |
2f2b4ff2 |
34 | { |
aa0053b7 |
35 | dSP; |
36 | HV *stash = gv_stashpv("Encode::XS", TRUE); |
37 | SV *sv = sv_bless(newRV_noinc(newSViv(PTR2IV(enc))), stash); |
38 | int i = 0; |
39 | PUSHMARK(sp); |
40 | XPUSHs(sv); |
41 | while (enc->name[i]) { |
42 | const char *name = enc->name[i++]; |
43 | XPUSHs(sv_2mortal(newSVpvn(name, strlen(name)))); |
44 | } |
45 | PUTBACK; |
46 | call_pv("Encode::define_encoding", G_DISCARD); |
47 | SvREFCNT_dec(sv); |
2f2b4ff2 |
48 | } |
49 | |
aa0053b7 |
50 | void |
51 | call_failure(SV * routine, U8 * done, U8 * dest, U8 * orig) |
52 | { |
85982a32 |
53 | /* Exists for breakpointing */ |
aa0053b7 |
54 | } |
67e989fb |
55 | |
85982a32 |
56 | |
2fc614e0 |
57 | #define ERR_ENCODE_NOMAP "\"\\x{%04" UVxf "}\" does not map to %s" |
58 | #define ERR_DECODE_NOMAP "%s \"\\x%02" UVXf "\" does not map to Unicode" |
59 | |
2f2b4ff2 |
60 | static SV * |
aa0053b7 |
61 | encode_method(pTHX_ encode_t * enc, encpage_t * dir, SV * src, |
220e2d4e |
62 | int check, STRLEN * offset, SV * term, int * retcode) |
2f2b4ff2 |
63 | { |
aa0053b7 |
64 | STRLEN slen; |
65 | U8 *s = (U8 *) SvPV(src, slen); |
3aececda |
66 | STRLEN tlen = slen; |
67 | STRLEN ddone = 0; |
68 | STRLEN sdone = 0; |
39cf9a5e |
69 | |
3c49ab08 |
70 | /* We allocate slen+1. |
85982a32 |
71 | PerlIO dumps core if this value is smaller than this. */ |
3c49ab08 |
72 | SV *dst = sv_2mortal(newSV(slen+1)); |
85982a32 |
73 | U8 *d = (U8 *)SvPVX(dst); |
74 | STRLEN dlen = SvLEN(dst)-1; |
220e2d4e |
75 | int code = 0; |
76 | STRLEN trmlen = 0; |
cc7dbc11 |
77 | U8 *trm = term ? (U8*) SvPV(term, trmlen) : NULL; |
220e2d4e |
78 | |
79 | if (offset) { |
80 | s += *offset; |
6be7c101 |
81 | if (slen > *offset){ /* safeguard against slen overflow */ |
82 | slen -= *offset; |
83 | }else{ |
84 | slen = 0; |
85 | } |
220e2d4e |
86 | tlen = slen; |
87 | } |
85982a32 |
88 | |
6be7c101 |
89 | if (slen == 0){ |
85982a32 |
90 | SvCUR_set(dst, 0); |
91 | SvPOK_only(dst); |
92 | goto ENCODE_END; |
93 | } |
94 | |
220e2d4e |
95 | while( (code = do_encode(dir, s, &slen, d, dlen, &dlen, !check, |
96 | trm, trmlen)) ) |
85982a32 |
97 | { |
98 | SvCUR_set(dst, dlen+ddone); |
99 | SvPOK_only(dst); |
0b3236bb |
100 | |
220e2d4e |
101 | if (code == ENCODE_FALLBACK || code == ENCODE_PARTIAL || |
102 | code == ENCODE_FOUND_TERM) { |
85982a32 |
103 | break; |
104 | } |
105 | switch (code) { |
106 | case ENCODE_NOSPACE: |
107 | { |
108 | STRLEN more = 0; /* make sure you initialize! */ |
109 | STRLEN sleft; |
110 | sdone += slen; |
111 | ddone += dlen; |
112 | sleft = tlen - sdone; |
fcb875d4 |
113 | #if ENCODE_XS_PROFILE >= 2 |
85982a32 |
114 | Perl_warn(aTHX_ |
115 | "more=%d, sdone=%d, sleft=%d, SvLEN(dst)=%d\n", |
116 | more, sdone, sleft, SvLEN(dst)); |
fcb875d4 |
117 | #endif |
85982a32 |
118 | if (sdone != 0) { /* has src ever been processed ? */ |
39cf9a5e |
119 | #if ENCODE_XS_USEFP == 2 |
85982a32 |
120 | more = (1.0*tlen*SvLEN(dst)+sdone-1)/sdone |
121 | - SvLEN(dst); |
39cf9a5e |
122 | #elif ENCODE_XS_USEFP |
6e21dc91 |
123 | more = (STRLEN)((1.0*SvLEN(dst)+1)/sdone * sleft); |
39cf9a5e |
124 | #else |
85982a32 |
125 | /* safe until SvLEN(dst) == MAX_INT/16 */ |
126 | more = (16*SvLEN(dst)+1)/sdone/16 * sleft; |
39cf9a5e |
127 | #endif |
39cf9a5e |
128 | } |
85982a32 |
129 | more += UTF8_MAXLEN; /* insurance policy */ |
130 | d = (U8 *) SvGROW(dst, SvLEN(dst) + more); |
131 | /* dst need to grow need MORE bytes! */ |
132 | if (ddone >= SvLEN(dst)) { |
133 | Perl_croak(aTHX_ "Destination couldn't be grown."); |
134 | } |
135 | dlen = SvLEN(dst)-ddone-1; |
136 | d += ddone; |
137 | s += slen; |
138 | slen = tlen-sdone; |
139 | continue; |
140 | } |
141 | case ENCODE_NOREP: |
142 | /* encoding */ |
c6a7db43 |
143 | if (dir == enc->f_utf8) { |
85982a32 |
144 | STRLEN clen; |
145 | UV ch = |
3e952a88 |
146 | utf8n_to_uvuni(s+slen, (SvCUR(src)-slen), |
b0b300a3 |
147 | &clen, UTF8_ALLOW_ANY|UTF8_CHECK_ONLY); |
85982a32 |
148 | if (check & ENCODE_DIE_ON_ERR) { |
2fc614e0 |
149 | Perl_croak(aTHX_ ERR_ENCODE_NOMAP, |
150 | (UV)ch, enc->name[0]); |
4089adc4 |
151 | return &PL_sv_undef; /* never reaches but be safe */ |
152 | } |
153 | if (check & ENCODE_WARN_ON_ERR){ |
154 | Perl_warner(aTHX_ packWARN(WARN_UTF8), |
2fc614e0 |
155 | ERR_ENCODE_NOMAP, (UV)ch, enc->name[0]); |
4089adc4 |
156 | } |
157 | if (check & ENCODE_RETURN_ON_ERR){ |
158 | goto ENCODE_SET_SRC; |
159 | } |
160 | if (check & ENCODE_PERLQQ){ |
161 | SV* perlqq = |
162 | sv_2mortal(newSVpvf("\\x{%04"UVxf"}", (UV)ch)); |
163 | sdone += slen + clen; |
164 | ddone += dlen + SvCUR(perlqq); |
165 | sv_catsv(dst, perlqq); |
166 | }else if (check & ENCODE_HTMLCREF){ |
167 | SV* htmlcref = |
168 | sv_2mortal(newSVpvf("&#%" UVuf ";", (UV)ch)); |
169 | sdone += slen + clen; |
170 | ddone += dlen + SvCUR(htmlcref); |
171 | sv_catsv(dst, htmlcref); |
172 | }else if (check & ENCODE_XMLCREF){ |
173 | SV* xmlcref = |
174 | sv_2mortal(newSVpvf("&#x%" UVxf ";", (UV)ch)); |
175 | sdone += slen + clen; |
176 | ddone += dlen + SvCUR(xmlcref); |
177 | sv_catsv(dst, xmlcref); |
178 | } else { |
179 | /* fallback char */ |
180 | sdone += slen + clen; |
181 | ddone += dlen + enc->replen; |
182 | sv_catpvn(dst, (char*)enc->rep, enc->replen); |
c6a7db43 |
183 | } |
b2704119 |
184 | } |
85982a32 |
185 | /* decoding */ |
c6a7db43 |
186 | else { |
85982a32 |
187 | if (check & ENCODE_DIE_ON_ERR){ |
2fc614e0 |
188 | Perl_croak(aTHX_ ERR_DECODE_NOMAP, |
436c6dd3 |
189 | enc->name[0], (UV)s[slen]); |
4089adc4 |
190 | return &PL_sv_undef; /* never reaches but be safe */ |
191 | } |
192 | if (check & ENCODE_WARN_ON_ERR){ |
193 | Perl_warner( |
194 | aTHX_ packWARN(WARN_UTF8), |
2fc614e0 |
195 | ERR_DECODE_NOMAP, |
436c6dd3 |
196 | enc->name[0], (UV)s[slen]); |
4089adc4 |
197 | } |
198 | if (check & ENCODE_RETURN_ON_ERR){ |
199 | goto ENCODE_SET_SRC; |
200 | } |
201 | if (check & |
202 | (ENCODE_PERLQQ|ENCODE_HTMLCREF|ENCODE_XMLCREF)){ |
203 | SV* perlqq = |
204 | sv_2mortal(newSVpvf("\\x%02" UVXf, (UV)s[slen])); |
205 | sdone += slen + 1; |
206 | ddone += dlen + SvCUR(perlqq); |
207 | sv_catsv(dst, perlqq); |
208 | } else { |
209 | sdone += slen + 1; |
210 | ddone += dlen + strlen(FBCHAR_UTF8); |
211 | sv_catpv(dst, FBCHAR_UTF8); |
aa0053b7 |
212 | } |
b2704119 |
213 | } |
85982a32 |
214 | /* settle variables when fallback */ |
b0b300a3 |
215 | d = (U8 *)SvEND(dst); |
216 | dlen = SvLEN(dst) - ddone - 1; |
3e952a88 |
217 | s = (U8*)SvPVX(src) + sdone; |
b2704119 |
218 | slen = tlen - sdone; |
219 | break; |
2f2b4ff2 |
220 | |
85982a32 |
221 | default: |
222 | Perl_croak(aTHX_ "Unexpected code %d converting %s %s", |
223 | code, (dir == enc->f_utf8) ? "to" : "from", |
224 | enc->name[0]); |
225 | return &PL_sv_undef; |
aa0053b7 |
226 | } |
85982a32 |
227 | } |
228 | ENCODE_SET_SRC: |
ca777f1c |
229 | if (check && !(check & ENCODE_LEAVE_SRC)){ |
230 | sdone = SvCUR(src) - (slen+sdone); |
85982a32 |
231 | if (sdone) { |
232 | sv_setpvn(src, (char*)s+slen, sdone); |
aa0053b7 |
233 | } |
85982a32 |
234 | SvCUR_set(src, sdone); |
2f2b4ff2 |
235 | } |
85982a32 |
236 | /* warn("check = 0x%X, code = 0x%d\n", check, code); */ |
c6a7db43 |
237 | |
85982a32 |
238 | SvCUR_set(dst, dlen+ddone); |
239 | SvPOK_only(dst); |
c6a7db43 |
240 | |
39cf9a5e |
241 | #if ENCODE_XS_PROFILE |
242 | if (SvCUR(dst) > SvCUR(src)){ |
85982a32 |
243 | Perl_warn(aTHX_ |
244 | "SvLEN(dst)=%d, SvCUR(dst)=%d. %d bytes unused(%f %%)\n", |
245 | SvLEN(dst), SvCUR(dst), SvLEN(dst) - SvCUR(dst), |
246 | (SvLEN(dst) - SvCUR(dst))*1.0/SvLEN(dst)*100.0); |
39cf9a5e |
247 | } |
3c49ab08 |
248 | #endif |
c6a7db43 |
249 | |
220e2d4e |
250 | if (offset) |
251 | *offset += sdone + slen; |
252 | |
85982a32 |
253 | ENCODE_END: |
0b3236bb |
254 | *SvEND(dst) = '\0'; |
220e2d4e |
255 | if (retcode) *retcode = code; |
aa0053b7 |
256 | return dst; |
2f2b4ff2 |
257 | } |
258 | |
ab3374e4 |
259 | MODULE = Encode PACKAGE = Encode::utf8 PREFIX = Method_ |
260 | |
a0d8a30e |
261 | PROTOTYPES: DISABLE |
262 | |
263 | void |
264 | Method_renew(obj) |
265 | SV * obj |
266 | CODE: |
267 | { |
268 | XSRETURN(1); |
269 | } |
270 | |
ab3374e4 |
271 | void |
b536bf57 |
272 | Method_decode_xs(obj,src,check = 0) |
ab3374e4 |
273 | SV * obj |
274 | SV * src |
275 | int check |
276 | CODE: |
277 | { |
278 | STRLEN slen; |
279 | U8 *s = (U8 *) SvPV(src, slen); |
280 | U8 *e = (U8 *) SvEND(src); |
b536bf57 |
281 | SV *dst = newSV(slen>0?slen:1); /* newSV() abhors 0 -- inaba */ |
ab3374e4 |
282 | SvPOK_only(dst); |
283 | SvCUR_set(dst,0); |
284 | if (SvUTF8(src)) { |
285 | s = utf8_to_bytes(s,&slen); |
286 | if (s) { |
287 | SvCUR_set(src,slen); |
288 | SvUTF8_off(src); |
289 | e = s+slen; |
290 | } |
291 | else { |
292 | croak("Cannot decode string with wide characters"); |
293 | } |
294 | } |
295 | while (s < e) { |
296 | if (UTF8_IS_INVARIANT(*s) || UTF8_IS_START(*s)) { |
297 | U8 skip = UTF8SKIP(s); |
298 | if ((s + skip) > e) { |
299 | /* Partial character - done */ |
300 | break; |
301 | } |
302 | else if (is_utf8_char(s)) { |
303 | /* Whole char is good */ |
304 | sv_catpvn(dst,(char *)s,skip); |
305 | s += skip; |
306 | continue; |
307 | } |
308 | else { |
309 | /* starts ok but isn't "good" */ |
310 | } |
311 | } |
312 | else { |
313 | /* Invalid start byte */ |
314 | } |
315 | /* If we get here there is something wrong with alleged UTF-8 */ |
316 | if (check & ENCODE_DIE_ON_ERR){ |
317 | Perl_croak(aTHX_ ERR_DECODE_NOMAP, "utf8", (UV)*s); |
318 | XSRETURN(0); |
319 | } |
320 | if (check & ENCODE_WARN_ON_ERR){ |
321 | Perl_warner(aTHX_ packWARN(WARN_UTF8), |
322 | ERR_DECODE_NOMAP, "utf8", (UV)*s); |
323 | } |
324 | if (check & ENCODE_RETURN_ON_ERR) { |
325 | break; |
326 | } |
327 | if (check & (ENCODE_PERLQQ|ENCODE_HTMLCREF|ENCODE_XMLCREF)){ |
328 | SV* perlqq = newSVpvf("\\x%02" UVXf, (UV)*s); |
329 | sv_catsv(dst, perlqq); |
330 | SvREFCNT_dec(perlqq); |
331 | } else { |
332 | sv_catpv(dst, FBCHAR_UTF8); |
333 | } |
334 | s++; |
335 | } |
336 | *SvEND(dst) = '\0'; |
337 | |
338 | /* Clear out translated part of source unless asked not to */ |
339 | if (check && !(check & ENCODE_LEAVE_SRC)){ |
340 | slen = e-s; |
341 | if (slen) { |
342 | sv_setpvn(src, (char*)s, slen); |
343 | } |
344 | SvCUR_set(src, slen); |
345 | } |
346 | SvUTF8_on(dst); |
347 | ST(0) = sv_2mortal(dst); |
348 | XSRETURN(1); |
349 | } |
350 | |
351 | void |
b536bf57 |
352 | Method_encode_xs(obj,src,check = 0) |
ab3374e4 |
353 | SV * obj |
354 | SV * src |
355 | int check |
356 | CODE: |
357 | { |
358 | STRLEN slen; |
359 | U8 *s = (U8 *) SvPV(src, slen); |
360 | U8 *e = (U8 *) SvEND(src); |
b536bf57 |
361 | SV *dst = newSV(slen>0?slen:1); /* newSV() abhors 0 -- inaba */ |
ab3374e4 |
362 | if (SvUTF8(src)) { |
363 | /* Already encoded - trust it and just copy the octets */ |
364 | sv_setpvn(dst,(char *)s,(e-s)); |
365 | s = e; |
366 | } |
367 | else { |
368 | /* Native bytes - can always encode */ |
b536bf57 |
369 | U8 *d = (U8 *) SvGROW(dst, 2*slen+1); /* +1 or assertion will botch */ |
ab3374e4 |
370 | while (s < e) { |
371 | UV uv = NATIVE_TO_UNI((UV) *s++); |
372 | if (UNI_IS_INVARIANT(uv)) |
373 | *d++ = (U8)UTF_TO_NATIVE(uv); |
374 | else { |
375 | *d++ = (U8)UTF8_EIGHT_BIT_HI(uv); |
376 | *d++ = (U8)UTF8_EIGHT_BIT_LO(uv); |
377 | } |
378 | } |
379 | SvCUR_set(dst, d- (U8 *)SvPVX(dst)); |
380 | *SvEND(dst) = '\0'; |
381 | } |
382 | |
383 | /* Clear out translated part of source unless asked not to */ |
384 | if (check && !(check & ENCODE_LEAVE_SRC)){ |
385 | slen = e-s; |
386 | if (slen) { |
387 | sv_setpvn(src, (char*)s, slen); |
388 | } |
389 | SvCUR_set(src, slen); |
390 | } |
391 | SvPOK_only(dst); |
392 | SvUTF8_off(dst); |
393 | ST(0) = sv_2mortal(dst); |
394 | XSRETURN(1); |
395 | } |
396 | |
50d26985 |
397 | MODULE = Encode PACKAGE = Encode::XS PREFIX = Method_ |
2f2b4ff2 |
398 | |
399 | PROTOTYPES: ENABLE |
400 | |
401 | void |
a0d8a30e |
402 | Method_renew(obj) |
403 | SV * obj |
404 | CODE: |
405 | { |
406 | XSRETURN(1); |
407 | } |
408 | |
409 | void |
0a95303c |
410 | Method_name(obj) |
411 | SV * obj |
412 | CODE: |
85982a32 |
413 | { |
414 | encode_t *enc = INT2PTR(encode_t *, SvIV(SvRV(obj))); |
415 | ST(0) = sv_2mortal(newSVpvn(enc->name[0],strlen(enc->name[0]))); |
416 | XSRETURN(1); |
417 | } |
0a95303c |
418 | |
419 | void |
220e2d4e |
420 | Method_cat_decode(obj, dst, src, off, term, check = 0) |
421 | SV * obj |
422 | SV * dst |
423 | SV * src |
424 | SV * off |
425 | SV * term |
426 | int check |
427 | CODE: |
428 | { |
429 | encode_t *enc = INT2PTR(encode_t *, SvIV(SvRV(obj))); |
430 | STRLEN offset = (STRLEN)SvIV(off); |
431 | int code = 0; |
432 | if (SvUTF8(src)) { |
433 | sv_utf8_downgrade(src, FALSE); |
434 | } |
435 | sv_catsv(dst, encode_method(aTHX_ enc, enc->t_utf8, src, check, |
436 | &offset, term, &code)); |
437 | SvIVX(off) = (IV)offset; |
438 | if (code == ENCODE_FOUND_TERM) { |
439 | ST(0) = &PL_sv_yes; |
440 | }else{ |
441 | ST(0) = &PL_sv_no; |
442 | } |
443 | XSRETURN(1); |
444 | } |
445 | |
446 | void |
b2704119 |
447 | Method_decode(obj,src,check = 0) |
2f2b4ff2 |
448 | SV * obj |
449 | SV * src |
b2704119 |
450 | int check |
2f2b4ff2 |
451 | CODE: |
aae85ceb |
452 | { |
85982a32 |
453 | encode_t *enc = INT2PTR(encode_t *, SvIV(SvRV(obj))); |
ab3374e4 |
454 | if (SvUTF8(src)) { |
455 | sv_utf8_downgrade(src, FALSE); |
456 | } |
220e2d4e |
457 | ST(0) = encode_method(aTHX_ enc, enc->t_utf8, src, check, |
458 | NULL, Nullsv, NULL); |
85982a32 |
459 | SvUTF8_on(ST(0)); |
aae85ceb |
460 | XSRETURN(1); |
461 | } |
462 | |
463 | void |
85982a32 |
464 | Method_encode(obj,src,check = 0) |
aae85ceb |
465 | SV * obj |
85982a32 |
466 | SV * src |
467 | int check |
aae85ceb |
468 | CODE: |
469 | { |
85982a32 |
470 | encode_t *enc = INT2PTR(encode_t *, SvIV(SvRV(obj))); |
471 | sv_utf8_upgrade(src); |
220e2d4e |
472 | ST(0) = encode_method(aTHX_ enc, enc->f_utf8, src, check, |
473 | NULL, Nullsv, NULL); |
aae85ceb |
474 | XSRETURN(1); |
475 | } |
476 | |
0ab8f81e |
477 | void |
478 | Method_needs_lines(obj) |
479 | SV * obj |
480 | CODE: |
481 | { |
b32afa7c |
482 | /* encode_t *enc = INT2PTR(encode_t *, SvIV(SvRV(obj))); */ |
0ab8f81e |
483 | ST(0) = &PL_sv_no; |
484 | XSRETURN(1); |
485 | } |
486 | |
487 | void |
488 | Method_perlio_ok(obj) |
489 | SV * obj |
490 | CODE: |
491 | { |
b32afa7c |
492 | /* encode_t *enc = INT2PTR(encode_t *, SvIV(SvRV(obj))); */ |
10c5ecbb |
493 | /* require_pv(PERLIO_FILENAME); */ |
494 | |
495 | eval_pv("require PerlIO::encoding", 0); |
496 | |
497 | if (SvTRUE(get_sv("@", 0))) { |
0ab8f81e |
498 | ST(0) = &PL_sv_no; |
10c5ecbb |
499 | }else{ |
500 | ST(0) = &PL_sv_yes; |
0ab8f81e |
501 | } |
502 | XSRETURN(1); |
503 | } |
504 | |
67e989fb |
505 | MODULE = Encode PACKAGE = Encode |
2c674647 |
506 | |
507 | PROTOTYPES: ENABLE |
508 | |
67e989fb |
509 | I32 |
2c674647 |
510 | _bytes_to_utf8(sv, ...) |
85982a32 |
511 | SV * sv |
512 | CODE: |
513 | { |
514 | SV * encoding = items == 2 ? ST(1) : Nullsv; |
c6a7db43 |
515 | |
85982a32 |
516 | if (encoding) |
517 | RETVAL = _encoded_bytes_to_utf8(sv, SvPV_nolen(encoding)); |
518 | else { |
519 | STRLEN len; |
520 | U8* s = (U8*)SvPV(sv, len); |
521 | U8* converted; |
522 | |
523 | converted = bytes_to_utf8(s, &len); /* This allocs */ |
524 | sv_setpvn(sv, (char *)converted, len); |
525 | SvUTF8_on(sv); /* XXX Should we? */ |
526 | Safefree(converted); /* ... so free it */ |
527 | RETVAL = len; |
528 | } |
529 | } |
530 | OUTPUT: |
531 | RETVAL |
2c674647 |
532 | |
67e989fb |
533 | I32 |
2c674647 |
534 | _utf8_to_bytes(sv, ...) |
85982a32 |
535 | SV * sv |
536 | CODE: |
537 | { |
538 | SV * to = items > 1 ? ST(1) : Nullsv; |
539 | SV * check = items > 2 ? ST(2) : Nullsv; |
540 | |
541 | if (to) { |
542 | RETVAL = _encoded_utf8_to_bytes(sv, SvPV_nolen(to)); |
543 | } else { |
544 | STRLEN len; |
545 | U8 *s = (U8*)SvPV(sv, len); |
546 | |
547 | RETVAL = 0; |
548 | if (SvTRUE(check)) { |
549 | /* Must do things the slow way */ |
550 | U8 *dest; |
551 | /* We need a copy to pass to check() */ |
c6a7db43 |
552 | U8 *src = (U8*)savepv((char *)s); |
85982a32 |
553 | U8 *send = s + len; |
554 | |
555 | New(83, dest, len, U8); /* I think */ |
556 | |
557 | while (s < send) { |
558 | if (*s < 0x80){ |
559 | *dest++ = *s++; |
560 | } else { |
561 | STRLEN ulen; |
562 | UV uv = *s++; |
563 | |
564 | /* Have to do it all ourselves because of error routine, |
565 | aargh. */ |
566 | if (!(uv & 0x40)){ goto failure; } |
567 | if (!(uv & 0x20)) { ulen = 2; uv &= 0x1f; } |
568 | else if (!(uv & 0x10)) { ulen = 3; uv &= 0x0f; } |
569 | else if (!(uv & 0x08)) { ulen = 4; uv &= 0x07; } |
570 | else if (!(uv & 0x04)) { ulen = 5; uv &= 0x03; } |
571 | else if (!(uv & 0x02)) { ulen = 6; uv &= 0x01; } |
572 | else if (!(uv & 0x01)) { ulen = 7; uv = 0; } |
573 | else { ulen = 13; uv = 0; } |
87714904 |
574 | |
85982a32 |
575 | /* Note change to utf8.c variable naming, for variety */ |
576 | while (ulen--) { |
c6a7db43 |
577 | if ((*s & 0xc0) != 0x80){ |
578 | goto failure; |
85982a32 |
579 | } else { |
580 | uv = (uv << 6) | (*s++ & 0x3f); |
581 | } |
87714904 |
582 | } |
67e989fb |
583 | if (uv > 256) { |
584 | failure: |
85982a32 |
585 | call_failure(check, s, dest, src); |
586 | /* Now what happens? */ |
67e989fb |
587 | } |
588 | *dest++ = (U8)uv; |
85982a32 |
589 | } |
590 | } |
591 | } else { |
592 | RETVAL = (utf8_to_bytes(s, &len) ? len : 0); |
2c674647 |
593 | } |
85982a32 |
594 | } |
595 | } |
596 | OUTPUT: |
597 | RETVAL |
2c674647 |
598 | |
2c674647 |
599 | bool |
b2704119 |
600 | is_utf8(sv, check = 0) |
4411f3b6 |
601 | SV * sv |
b2704119 |
602 | int check |
85982a32 |
603 | CODE: |
604 | { |
605 | if (SvGMAGICAL(sv)) /* it could be $1, for example */ |
606 | sv = newSVsv(sv); /* GMAGIG will be done */ |
607 | if (SvPOK(sv)) { |
608 | RETVAL = SvUTF8(sv) ? TRUE : FALSE; |
609 | if (RETVAL && |
610 | check && |
611 | !is_utf8_string((U8*)SvPVX(sv), SvCUR(sv))) |
2c674647 |
612 | RETVAL = FALSE; |
85982a32 |
613 | } else { |
614 | RETVAL = FALSE; |
615 | } |
616 | if (sv != ST(0)) |
617 | SvREFCNT_dec(sv); /* it was a temp copy */ |
618 | } |
619 | OUTPUT: |
620 | RETVAL |
2c674647 |
621 | |
622 | SV * |
4411f3b6 |
623 | _utf8_on(sv) |
85982a32 |
624 | SV * sv |
625 | CODE: |
626 | { |
627 | if (SvPOK(sv)) { |
628 | SV *rsv = newSViv(SvUTF8(sv)); |
629 | RETVAL = rsv; |
630 | SvUTF8_on(sv); |
631 | } else { |
632 | RETVAL = &PL_sv_undef; |
633 | } |
634 | } |
635 | OUTPUT: |
636 | RETVAL |
2c674647 |
637 | |
638 | SV * |
4411f3b6 |
639 | _utf8_off(sv) |
85982a32 |
640 | SV * sv |
641 | CODE: |
642 | { |
643 | if (SvPOK(sv)) { |
644 | SV *rsv = newSViv(SvUTF8(sv)); |
645 | RETVAL = rsv; |
646 | SvUTF8_off(sv); |
647 | } else { |
648 | RETVAL = &PL_sv_undef; |
649 | } |
650 | } |
651 | OUTPUT: |
652 | RETVAL |
653 | |
85982a32 |
654 | int |
655 | DIE_ON_ERR() |
656 | CODE: |
657 | RETVAL = ENCODE_DIE_ON_ERR; |
658 | OUTPUT: |
659 | RETVAL |
660 | |
c6a7db43 |
661 | int |
85982a32 |
662 | WARN_ON_ERR() |
663 | CODE: |
664 | RETVAL = ENCODE_WARN_ON_ERR; |
665 | OUTPUT: |
666 | RETVAL |
667 | |
668 | int |
669 | LEAVE_SRC() |
670 | CODE: |
671 | RETVAL = ENCODE_LEAVE_SRC; |
672 | OUTPUT: |
673 | RETVAL |
674 | |
675 | int |
676 | RETURN_ON_ERR() |
677 | CODE: |
678 | RETVAL = ENCODE_RETURN_ON_ERR; |
679 | OUTPUT: |
680 | RETVAL |
681 | |
682 | int |
683 | PERLQQ() |
684 | CODE: |
685 | RETVAL = ENCODE_PERLQQ; |
686 | OUTPUT: |
687 | RETVAL |
688 | |
689 | int |
af1f55d9 |
690 | HTMLCREF() |
691 | CODE: |
692 | RETVAL = ENCODE_HTMLCREF; |
693 | OUTPUT: |
694 | RETVAL |
695 | |
696 | int |
697 | XMLCREF() |
698 | CODE: |
699 | RETVAL = ENCODE_XMLCREF; |
700 | OUTPUT: |
701 | RETVAL |
702 | |
703 | int |
85982a32 |
704 | FB_DEFAULT() |
705 | CODE: |
706 | RETVAL = ENCODE_FB_DEFAULT; |
707 | OUTPUT: |
708 | RETVAL |
709 | |
710 | int |
711 | FB_CROAK() |
712 | CODE: |
713 | RETVAL = ENCODE_FB_CROAK; |
714 | OUTPUT: |
715 | RETVAL |
716 | |
717 | int |
718 | FB_QUIET() |
719 | CODE: |
720 | RETVAL = ENCODE_FB_QUIET; |
721 | OUTPUT: |
722 | RETVAL |
723 | |
724 | int |
725 | FB_WARN() |
726 | CODE: |
727 | RETVAL = ENCODE_FB_WARN; |
728 | OUTPUT: |
729 | RETVAL |
730 | |
731 | int |
732 | FB_PERLQQ() |
733 | CODE: |
734 | RETVAL = ENCODE_FB_PERLQQ; |
735 | OUTPUT: |
736 | RETVAL |
2c674647 |
737 | |
af1f55d9 |
738 | int |
739 | FB_HTMLCREF() |
740 | CODE: |
741 | RETVAL = ENCODE_FB_HTMLCREF; |
742 | OUTPUT: |
743 | RETVAL |
744 | |
745 | int |
746 | FB_XMLCREF() |
747 | CODE: |
748 | RETVAL = ENCODE_FB_XMLCREF; |
749 | OUTPUT: |
750 | RETVAL |
751 | |
33af2bc7 |
752 | BOOT: |
753 | { |
85982a32 |
754 | #include "def_t.h" |
e7cbefb8 |
755 | #include "def_t.exh" |
33af2bc7 |
756 | } |