Commit | Line | Data |
---|---|---|
85982a32 | 1 | /* |
370462a2 | 2 | $Id: Encode.xs,v 2.14 2007/05/29 18:15:32 dankogai Exp dankogai $ |
85982a32 JH |
3 | */ |
4 | ||
fcf2db38 | 5 | #define PERL_NO_GET_CONTEXT |
2c674647 JH |
6 | #include "EXTERN.h" |
7 | #include "perl.h" | |
8 | #include "XSUB.h" | |
2f2b4ff2 NIS |
9 | #define U8 U8 |
10 | #include "encode.h" | |
10c5ecbb JH |
11 | |
12 | # define PERLIO_MODNAME "PerlIO::encoding" | |
0ab8f81e | 13 | # define PERLIO_FILENAME "PerlIO/encoding.pm" |
aae85ceb | 14 | |
85982a32 JH |
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 JH |
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"); \ |
d1256cb1 | 25 | return (y)0; /* fool picky compilers */ \ |
87714904 | 26 | } |
85982a32 | 27 | /**/ |
011b2d2f | 28 | |
7e9a885a JH |
29 | UNIMPLEMENTED(_encoded_utf8_to_bytes, I32) |
30 | UNIMPLEMENTED(_encoded_bytes_to_utf8, I32) | |
33af2bc7 | 31 | |
7f0d54d7 RGS |
32 | #define UTF8_ALLOW_STRICT 0 |
33 | #define UTF8_ALLOW_NONSTRICT (UTF8_ALLOW_ANY & \ | |
34 | ~(UTF8_ALLOW_CONTINUATION | \ | |
35 | UTF8_ALLOW_NON_CONTINUATION | \ | |
36 | UTF8_ALLOW_LONG)) | |
37 | ||
b0b300a3 | 38 | void |
aa0053b7 | 39 | Encode_XSEncoding(pTHX_ encode_t * enc) |
2f2b4ff2 | 40 | { |
aa0053b7 NIS |
41 | dSP; |
42 | HV *stash = gv_stashpv("Encode::XS", TRUE); | |
43 | SV *sv = sv_bless(newRV_noinc(newSViv(PTR2IV(enc))), stash); | |
44 | int i = 0; | |
45 | PUSHMARK(sp); | |
46 | XPUSHs(sv); | |
47 | while (enc->name[i]) { | |
d1256cb1 RGS |
48 | const char *name = enc->name[i++]; |
49 | XPUSHs(sv_2mortal(newSVpvn(name, strlen(name)))); | |
aa0053b7 NIS |
50 | } |
51 | PUTBACK; | |
52 | call_pv("Encode::define_encoding", G_DISCARD); | |
53 | SvREFCNT_dec(sv); | |
2f2b4ff2 NIS |
54 | } |
55 | ||
aa0053b7 NIS |
56 | void |
57 | call_failure(SV * routine, U8 * done, U8 * dest, U8 * orig) | |
58 | { | |
85982a32 | 59 | /* Exists for breakpointing */ |
aa0053b7 | 60 | } |
67e989fb | 61 | |
85982a32 | 62 | |
2fc614e0 JH |
63 | #define ERR_ENCODE_NOMAP "\"\\x{%04" UVxf "}\" does not map to %s" |
64 | #define ERR_DECODE_NOMAP "%s \"\\x%02" UVXf "\" does not map to Unicode" | |
65 | ||
2f2b4ff2 | 66 | static SV * |
370462a2 | 67 | do_fallback_cb(pTHX_ UV ch, SV *fallback_cb) |
8e180e82 SP |
68 | { |
69 | dSP; | |
70 | int argc; | |
7828f908 | 71 | SV *temp, *retval; |
8e180e82 SP |
72 | ENTER; |
73 | SAVETMPS; | |
74 | PUSHMARK(sp); | |
75 | XPUSHs(sv_2mortal(newSVnv((UV)ch))); | |
76 | PUTBACK; | |
77 | argc = call_sv(fallback_cb, G_SCALAR); | |
78 | SPAGAIN; | |
79 | if (argc != 1){ | |
370462a2 | 80 | croak("fallback sub must return scalar!"); |
8e180e82 | 81 | } |
7828f908 | 82 | temp = newSVsv(POPs); |
8e180e82 SP |
83 | PUTBACK; |
84 | FREETMPS; | |
85 | LEAVE; | |
7828f908 RGS |
86 | retval = newSVpv("",0); |
87 | sv_catsv(retval, temp); | |
6ead8143 | 88 | SvREFCNT_dec(temp); |
8e180e82 SP |
89 | return retval; |
90 | } | |
91 | ||
92 | static SV * | |
0629a5b3 | 93 | encode_method(pTHX_ const encode_t * enc, const encpage_t * dir, SV * src, |
370462a2 RGS |
94 | int check, STRLEN * offset, SV * term, int * retcode, |
95 | SV *fallback_cb) | |
2f2b4ff2 | 96 | { |
aa0053b7 NIS |
97 | STRLEN slen; |
98 | U8 *s = (U8 *) SvPV(src, slen); | |
3aececda NIS |
99 | STRLEN tlen = slen; |
100 | STRLEN ddone = 0; | |
101 | STRLEN sdone = 0; | |
39cf9a5e | 102 | |
3c49ab08 | 103 | /* We allocate slen+1. |
85982a32 | 104 | PerlIO dumps core if this value is smaller than this. */ |
3c49ab08 | 105 | SV *dst = sv_2mortal(newSV(slen+1)); |
85982a32 JH |
106 | U8 *d = (U8 *)SvPVX(dst); |
107 | STRLEN dlen = SvLEN(dst)-1; | |
220e2d4e IH |
108 | int code = 0; |
109 | STRLEN trmlen = 0; | |
cc7dbc11 | 110 | U8 *trm = term ? (U8*) SvPV(term, trmlen) : NULL; |
220e2d4e IH |
111 | |
112 | if (offset) { | |
113 | s += *offset; | |
6be7c101 | 114 | if (slen > *offset){ /* safeguard against slen overflow */ |
d1256cb1 | 115 | slen -= *offset; |
6be7c101 | 116 | }else{ |
d1256cb1 | 117 | slen = 0; |
6be7c101 | 118 | } |
220e2d4e IH |
119 | tlen = slen; |
120 | } | |
85982a32 | 121 | |
6be7c101 | 122 | if (slen == 0){ |
d1256cb1 RGS |
123 | SvCUR_set(dst, 0); |
124 | SvPOK_only(dst); | |
125 | goto ENCODE_END; | |
85982a32 JH |
126 | } |
127 | ||
220e2d4e | 128 | while( (code = do_encode(dir, s, &slen, d, dlen, &dlen, !check, |
d1256cb1 | 129 | trm, trmlen)) ) |
85982a32 | 130 | { |
d1256cb1 RGS |
131 | SvCUR_set(dst, dlen+ddone); |
132 | SvPOK_only(dst); | |
133 | ||
134 | if (code == ENCODE_FALLBACK || code == ENCODE_PARTIAL || | |
135 | code == ENCODE_FOUND_TERM) { | |
136 | break; | |
137 | } | |
138 | switch (code) { | |
139 | case ENCODE_NOSPACE: | |
140 | { | |
141 | STRLEN more = 0; /* make sure you initialize! */ | |
142 | STRLEN sleft; | |
143 | sdone += slen; | |
144 | ddone += dlen; | |
145 | sleft = tlen - sdone; | |
fcb875d4 | 146 | #if ENCODE_XS_PROFILE >= 2 |
d1256cb1 RGS |
147 | Perl_warn(aTHX_ |
148 | "more=%d, sdone=%d, sleft=%d, SvLEN(dst)=%d\n", | |
149 | more, sdone, sleft, SvLEN(dst)); | |
fcb875d4 | 150 | #endif |
d1256cb1 | 151 | if (sdone != 0) { /* has src ever been processed ? */ |
39cf9a5e | 152 | #if ENCODE_XS_USEFP == 2 |
d1256cb1 RGS |
153 | more = (1.0*tlen*SvLEN(dst)+sdone-1)/sdone |
154 | - SvLEN(dst); | |
39cf9a5e | 155 | #elif ENCODE_XS_USEFP |
d1256cb1 | 156 | more = (STRLEN)((1.0*SvLEN(dst)+1)/sdone * sleft); |
39cf9a5e | 157 | #else |
d1256cb1 RGS |
158 | /* safe until SvLEN(dst) == MAX_INT/16 */ |
159 | more = (16*SvLEN(dst)+1)/sdone/16 * sleft; | |
39cf9a5e | 160 | #endif |
d1256cb1 RGS |
161 | } |
162 | more += UTF8_MAXLEN; /* insurance policy */ | |
163 | d = (U8 *) SvGROW(dst, SvLEN(dst) + more); | |
164 | /* dst need to grow need MORE bytes! */ | |
165 | if (ddone >= SvLEN(dst)) { | |
166 | Perl_croak(aTHX_ "Destination couldn't be grown."); | |
167 | } | |
168 | dlen = SvLEN(dst)-ddone-1; | |
169 | d += ddone; | |
170 | s += slen; | |
171 | slen = tlen-sdone; | |
172 | continue; | |
173 | } | |
174 | case ENCODE_NOREP: | |
175 | /* encoding */ | |
176 | if (dir == enc->f_utf8) { | |
177 | STRLEN clen; | |
178 | UV ch = | |
179 | utf8n_to_uvuni(s+slen, (SvCUR(src)-slen), | |
180 | &clen, UTF8_ALLOW_ANY|UTF8_CHECK_ONLY); | |
181 | /* if non-representable multibyte prefix at end of current buffer - break*/ | |
182 | if (clen > tlen - sdone) break; | |
183 | if (check & ENCODE_DIE_ON_ERR) { | |
184 | Perl_croak(aTHX_ ERR_ENCODE_NOMAP, | |
185 | (UV)ch, enc->name[0]); | |
186 | return &PL_sv_undef; /* never reaches but be safe */ | |
187 | } | |
188 | if (check & ENCODE_WARN_ON_ERR){ | |
189 | Perl_warner(aTHX_ packWARN(WARN_UTF8), | |
190 | ERR_ENCODE_NOMAP, (UV)ch, enc->name[0]); | |
191 | } | |
192 | if (check & ENCODE_RETURN_ON_ERR){ | |
193 | goto ENCODE_SET_SRC; | |
194 | } | |
195 | if (check & (ENCODE_PERLQQ|ENCODE_HTMLCREF|ENCODE_XMLCREF)){ | |
196 | SV* subchar = | |
370462a2 RGS |
197 | (fallback_cb != &PL_sv_undef) |
198 | ? do_fallback_cb(aTHX_ ch, fallback_cb) | |
199 | : newSVpvf(check & ENCODE_PERLQQ ? "\\x{%04"UVxf"}" : | |
d1256cb1 RGS |
200 | check & ENCODE_HTMLCREF ? "&#%" UVuf ";" : |
201 | "&#x%" UVxf ";", (UV)ch); | |
202 | sdone += slen + clen; | |
203 | ddone += dlen + SvCUR(subchar); | |
204 | sv_catsv(dst, subchar); | |
205 | SvREFCNT_dec(subchar); | |
206 | } else { | |
207 | /* fallback char */ | |
208 | sdone += slen + clen; | |
209 | ddone += dlen + enc->replen; | |
210 | sv_catpvn(dst, (char*)enc->rep, enc->replen); | |
211 | } | |
212 | } | |
213 | /* decoding */ | |
214 | else { | |
215 | if (check & ENCODE_DIE_ON_ERR){ | |
216 | Perl_croak(aTHX_ ERR_DECODE_NOMAP, | |
436c6dd3 | 217 | enc->name[0], (UV)s[slen]); |
d1256cb1 RGS |
218 | return &PL_sv_undef; /* never reaches but be safe */ |
219 | } | |
220 | if (check & ENCODE_WARN_ON_ERR){ | |
221 | Perl_warner( | |
222 | aTHX_ packWARN(WARN_UTF8), | |
223 | ERR_DECODE_NOMAP, | |
436c6dd3 | 224 | enc->name[0], (UV)s[slen]); |
d1256cb1 RGS |
225 | } |
226 | if (check & ENCODE_RETURN_ON_ERR){ | |
227 | goto ENCODE_SET_SRC; | |
228 | } | |
229 | if (check & | |
230 | (ENCODE_PERLQQ|ENCODE_HTMLCREF|ENCODE_XMLCREF)){ | |
231 | SV* subchar = | |
370462a2 RGS |
232 | (fallback_cb != &PL_sv_undef) |
233 | ? do_fallback_cb(aTHX_ (UV)s[slen], fallback_cb) | |
234 | : newSVpvf("\\x%02" UVXf, (UV)s[slen]); | |
d1256cb1 RGS |
235 | sdone += slen + 1; |
236 | ddone += dlen + SvCUR(subchar); | |
237 | sv_catsv(dst, subchar); | |
238 | SvREFCNT_dec(subchar); | |
239 | } else { | |
240 | sdone += slen + 1; | |
241 | ddone += dlen + strlen(FBCHAR_UTF8); | |
242 | sv_catpv(dst, FBCHAR_UTF8); | |
243 | } | |
244 | } | |
245 | /* settle variables when fallback */ | |
246 | d = (U8 *)SvEND(dst); | |
b0b300a3 | 247 | dlen = SvLEN(dst) - ddone - 1; |
d1256cb1 RGS |
248 | s = (U8*)SvPVX(src) + sdone; |
249 | slen = tlen - sdone; | |
250 | break; | |
251 | ||
252 | default: | |
253 | Perl_croak(aTHX_ "Unexpected code %d converting %s %s", | |
254 | code, (dir == enc->f_utf8) ? "to" : "from", | |
255 | enc->name[0]); | |
256 | return &PL_sv_undef; | |
257 | } | |
85982a32 JH |
258 | } |
259 | ENCODE_SET_SRC: | |
ca777f1c | 260 | if (check && !(check & ENCODE_LEAVE_SRC)){ |
d1256cb1 RGS |
261 | sdone = SvCUR(src) - (slen+sdone); |
262 | if (sdone) { | |
263 | sv_setpvn(src, (char*)s+slen, sdone); | |
264 | } | |
265 | SvCUR_set(src, sdone); | |
2f2b4ff2 | 266 | } |
85982a32 | 267 | /* warn("check = 0x%X, code = 0x%d\n", check, code); */ |
c6a7db43 | 268 | |
85982a32 JH |
269 | SvCUR_set(dst, dlen+ddone); |
270 | SvPOK_only(dst); | |
c6a7db43 | 271 | |
39cf9a5e DK |
272 | #if ENCODE_XS_PROFILE |
273 | if (SvCUR(dst) > SvCUR(src)){ | |
d1256cb1 RGS |
274 | Perl_warn(aTHX_ |
275 | "SvLEN(dst)=%d, SvCUR(dst)=%d. %d bytes unused(%f %%)\n", | |
276 | SvLEN(dst), SvCUR(dst), SvLEN(dst) - SvCUR(dst), | |
277 | (SvLEN(dst) - SvCUR(dst))*1.0/SvLEN(dst)*100.0); | |
39cf9a5e | 278 | } |
3c49ab08 | 279 | #endif |
c6a7db43 | 280 | |
220e2d4e IH |
281 | if (offset) |
282 | *offset += sdone + slen; | |
283 | ||
85982a32 | 284 | ENCODE_END: |
0b3236bb | 285 | *SvEND(dst) = '\0'; |
220e2d4e | 286 | if (retcode) *retcode = code; |
aa0053b7 | 287 | return dst; |
2f2b4ff2 NIS |
288 | } |
289 | ||
7f0d54d7 RGS |
290 | static bool |
291 | strict_utf8(pTHX_ SV* sv) | |
292 | { | |
293 | HV* hv; | |
294 | SV** svp; | |
295 | sv = SvRV(sv); | |
296 | if (!sv || SvTYPE(sv) != SVt_PVHV) | |
297 | return 0; | |
298 | hv = (HV*)sv; | |
299 | svp = hv_fetch(hv, "strict_utf8", 11, 0); | |
300 | if (!svp) | |
301 | return 0; | |
302 | return SvTRUE(*svp); | |
303 | } | |
304 | ||
305 | static U8* | |
306 | process_utf8(pTHX_ SV* dst, U8* s, U8* e, int check, | |
307 | bool encode, bool strict, bool stop_at_partial) | |
308 | { | |
309 | UV uv; | |
310 | STRLEN ulen; | |
311 | ||
312 | SvPOK_only(dst); | |
313 | SvCUR_set(dst,0); | |
314 | ||
315 | while (s < e) { | |
316 | if (UTF8_IS_INVARIANT(*s)) { | |
317 | sv_catpvn(dst, (char *)s, 1); | |
318 | s++; | |
319 | continue; | |
320 | } | |
321 | ||
322 | if (UTF8_IS_START(*s)) { | |
323 | U8 skip = UTF8SKIP(s); | |
324 | if ((s + skip) > e) { | |
325 | /* Partial character */ | |
326 | /* XXX could check that rest of bytes are UTF8_IS_CONTINUATION(ch) */ | |
56ff7374 | 327 | if (stop_at_partial || (check & ENCODE_STOP_AT_PARTIAL)) |
7f0d54d7 RGS |
328 | break; |
329 | ||
330 | goto malformed_byte; | |
331 | } | |
332 | ||
333 | uv = utf8n_to_uvuni(s, e - s, &ulen, | |
334 | UTF8_CHECK_ONLY | (strict ? UTF8_ALLOW_STRICT : | |
335 | UTF8_ALLOW_NONSTRICT) | |
336 | ); | |
337 | #if 1 /* perl-5.8.6 and older do not check UTF8_ALLOW_LONG */ | |
d1256cb1 | 338 | if (strict && uv > PERL_UNICODE_MAX) |
1b9a72a9 | 339 | ulen = (STRLEN) -1; |
7f0d54d7 RGS |
340 | #endif |
341 | if (ulen == -1) { | |
342 | if (strict) { | |
343 | uv = utf8n_to_uvuni(s, e - s, &ulen, | |
344 | UTF8_CHECK_ONLY | UTF8_ALLOW_NONSTRICT); | |
345 | if (ulen == -1) | |
346 | goto malformed_byte; | |
347 | goto malformed; | |
348 | } | |
349 | goto malformed_byte; | |
350 | } | |
351 | ||
352 | ||
353 | /* Whole char is good */ | |
354 | sv_catpvn(dst,(char *)s,skip); | |
355 | s += skip; | |
356 | continue; | |
357 | } | |
358 | ||
359 | /* If we get here there is something wrong with alleged UTF-8 */ | |
360 | malformed_byte: | |
361 | uv = (UV)*s; | |
362 | ulen = 1; | |
363 | ||
364 | malformed: | |
365 | if (check & ENCODE_DIE_ON_ERR){ | |
366 | if (encode) | |
367 | Perl_croak(aTHX_ ERR_ENCODE_NOMAP, uv, "utf8"); | |
368 | else | |
369 | Perl_croak(aTHX_ ERR_DECODE_NOMAP, "utf8", uv); | |
370 | } | |
371 | if (check & ENCODE_WARN_ON_ERR){ | |
372 | if (encode) | |
373 | Perl_warner(aTHX_ packWARN(WARN_UTF8), | |
374 | ERR_ENCODE_NOMAP, uv, "utf8"); | |
375 | else | |
376 | Perl_warner(aTHX_ packWARN(WARN_UTF8), | |
377 | ERR_DECODE_NOMAP, "utf8", uv); | |
378 | } | |
379 | if (check & ENCODE_RETURN_ON_ERR) { | |
380 | break; | |
381 | } | |
382 | if (check & (ENCODE_PERLQQ|ENCODE_HTMLCREF|ENCODE_XMLCREF)){ | |
383 | SV* subchar = newSVpvf(check & ENCODE_PERLQQ ? (ulen == 1 ? "\\x%02" UVXf : "\\x{%04" UVXf "}"): | |
384 | check & ENCODE_HTMLCREF ? "&#%" UVuf ";" : | |
385 | "&#x%" UVxf ";", uv); | |
386 | sv_catsv(dst, subchar); | |
387 | SvREFCNT_dec(subchar); | |
388 | } else { | |
389 | sv_catpv(dst, FBCHAR_UTF8); | |
390 | } | |
391 | s += ulen; | |
392 | } | |
393 | *SvEND(dst) = '\0'; | |
394 | ||
395 | return s; | |
396 | } | |
397 | ||
398 | ||
ab3374e4 DK |
399 | MODULE = Encode PACKAGE = Encode::utf8 PREFIX = Method_ |
400 | ||
a0d8a30e DK |
401 | PROTOTYPES: DISABLE |
402 | ||
403 | void | |
b536bf57 | 404 | Method_decode_xs(obj,src,check = 0) |
ab3374e4 DK |
405 | SV * obj |
406 | SV * src | |
407 | int check | |
408 | CODE: | |
409 | { | |
410 | STRLEN slen; | |
411 | U8 *s = (U8 *) SvPV(src, slen); | |
412 | U8 *e = (U8 *) SvEND(src); | |
b536bf57 | 413 | SV *dst = newSV(slen>0?slen:1); /* newSV() abhors 0 -- inaba */ |
cc836e95 RGS |
414 | |
415 | /* | |
7f0d54d7 | 416 | * PerlIO check -- we assume the object is of PerlIO if renewed |
cc836e95 | 417 | */ |
f5a22bee | 418 | bool renewed = 0; |
cc836e95 RGS |
419 | dSP; ENTER; SAVETMPS; |
420 | PUSHMARK(sp); | |
421 | XPUSHs(obj); | |
422 | PUTBACK; | |
423 | if (call_method("renewed",G_SCALAR) == 1) { | |
d1256cb1 RGS |
424 | SPAGAIN; |
425 | renewed = (bool)POPi; | |
426 | PUTBACK; | |
cc836e95 | 427 | #if 0 |
d1256cb1 | 428 | fprintf(stderr, "renewed == %d\n", renewed); |
cc836e95 | 429 | #endif |
cc836e95 RGS |
430 | } |
431 | FREETMPS; LEAVE; | |
432 | /* end PerlIO check */ | |
433 | ||
ab3374e4 | 434 | if (SvUTF8(src)) { |
d1256cb1 RGS |
435 | s = utf8_to_bytes(s,&slen); |
436 | if (s) { | |
437 | SvCUR_set(src,slen); | |
438 | SvUTF8_off(src); | |
439 | e = s+slen; | |
440 | } | |
441 | else { | |
442 | croak("Cannot decode string with wide characters"); | |
443 | } | |
ab3374e4 | 444 | } |
7f0d54d7 RGS |
445 | |
446 | s = process_utf8(aTHX_ dst, s, e, check, 0, strict_utf8(aTHX_ obj), renewed); | |
ab3374e4 DK |
447 | |
448 | /* Clear out translated part of source unless asked not to */ | |
449 | if (check && !(check & ENCODE_LEAVE_SRC)){ | |
d1256cb1 RGS |
450 | slen = e-s; |
451 | if (slen) { | |
452 | sv_setpvn(src, (char*)s, slen); | |
453 | } | |
454 | SvCUR_set(src, slen); | |
ab3374e4 DK |
455 | } |
456 | SvUTF8_on(dst); | |
457 | ST(0) = sv_2mortal(dst); | |
458 | XSRETURN(1); | |
459 | } | |
460 | ||
461 | void | |
b536bf57 | 462 | Method_encode_xs(obj,src,check = 0) |
ab3374e4 DK |
463 | SV * obj |
464 | SV * src | |
465 | int check | |
466 | CODE: | |
467 | { | |
468 | STRLEN slen; | |
469 | U8 *s = (U8 *) SvPV(src, slen); | |
470 | U8 *e = (U8 *) SvEND(src); | |
b536bf57 | 471 | SV *dst = newSV(slen>0?slen:1); /* newSV() abhors 0 -- inaba */ |
ab3374e4 | 472 | if (SvUTF8(src)) { |
d1256cb1 RGS |
473 | /* Already encoded */ |
474 | if (strict_utf8(aTHX_ obj)) { | |
475 | s = process_utf8(aTHX_ dst, s, e, check, 1, 1, 0); | |
476 | } | |
7f0d54d7 RGS |
477 | else { |
478 | /* trust it and just copy the octets */ | |
479 | sv_setpvn(dst,(char *)s,(e-s)); | |
d1256cb1 | 480 | s = e; |
7f0d54d7 | 481 | } |
ab3374e4 DK |
482 | } |
483 | else { | |
484 | /* Native bytes - can always encode */ | |
d1256cb1 | 485 | U8 *d = (U8 *) SvGROW(dst, 2*slen+1); /* +1 or assertion will botch */ |
ab3374e4 | 486 | while (s < e) { |
cf0d1c66 JH |
487 | UV uv = NATIVE_TO_UNI((UV) *s); |
488 | s++; /* Above expansion of NATIVE_TO_UNI() is safer this way. */ | |
ab3374e4 DK |
489 | if (UNI_IS_INVARIANT(uv)) |
490 | *d++ = (U8)UTF_TO_NATIVE(uv); | |
491 | else { | |
492 | *d++ = (U8)UTF8_EIGHT_BIT_HI(uv); | |
493 | *d++ = (U8)UTF8_EIGHT_BIT_LO(uv); | |
494 | } | |
d1256cb1 | 495 | } |
ab3374e4 DK |
496 | SvCUR_set(dst, d- (U8 *)SvPVX(dst)); |
497 | *SvEND(dst) = '\0'; | |
498 | } | |
499 | ||
500 | /* Clear out translated part of source unless asked not to */ | |
501 | if (check && !(check & ENCODE_LEAVE_SRC)){ | |
d1256cb1 RGS |
502 | slen = e-s; |
503 | if (slen) { | |
504 | sv_setpvn(src, (char*)s, slen); | |
505 | } | |
506 | SvCUR_set(src, slen); | |
ab3374e4 DK |
507 | } |
508 | SvPOK_only(dst); | |
509 | SvUTF8_off(dst); | |
510 | ST(0) = sv_2mortal(dst); | |
511 | XSRETURN(1); | |
512 | } | |
513 | ||
50d26985 | 514 | MODULE = Encode PACKAGE = Encode::XS PREFIX = Method_ |
2f2b4ff2 NIS |
515 | |
516 | PROTOTYPES: ENABLE | |
517 | ||
518 | void | |
a0d8a30e DK |
519 | Method_renew(obj) |
520 | SV * obj | |
521 | CODE: | |
522 | { | |
523 | XSRETURN(1); | |
524 | } | |
525 | ||
cc836e95 RGS |
526 | int |
527 | Method_renewed(obj) | |
528 | SV * obj | |
529 | CODE: | |
530 | RETVAL = 0; | |
531 | OUTPUT: | |
532 | RETVAL | |
533 | ||
a0d8a30e | 534 | void |
0a95303c NIS |
535 | Method_name(obj) |
536 | SV * obj | |
537 | CODE: | |
85982a32 JH |
538 | { |
539 | encode_t *enc = INT2PTR(encode_t *, SvIV(SvRV(obj))); | |
540 | ST(0) = sv_2mortal(newSVpvn(enc->name[0],strlen(enc->name[0]))); | |
541 | XSRETURN(1); | |
542 | } | |
0a95303c NIS |
543 | |
544 | void | |
370462a2 | 545 | Method_cat_decode(obj, dst, src, off, term, check_sv = &PL_sv_no) |
220e2d4e IH |
546 | SV * obj |
547 | SV * dst | |
548 | SV * src | |
549 | SV * off | |
550 | SV * term | |
370462a2 | 551 | SV * check_sv |
220e2d4e IH |
552 | CODE: |
553 | { | |
370462a2 RGS |
554 | int check; |
555 | SV *fallback_cb = &PL_sv_undef; | |
220e2d4e IH |
556 | encode_t *enc = INT2PTR(encode_t *, SvIV(SvRV(obj))); |
557 | STRLEN offset = (STRLEN)SvIV(off); | |
558 | int code = 0; | |
559 | if (SvUTF8(src)) { | |
560 | sv_utf8_downgrade(src, FALSE); | |
561 | } | |
370462a2 RGS |
562 | if (SvROK(check_sv)){ |
563 | fallback_cb = check_sv; | |
564 | check = ENCODE_PERLQQ|ENCODE_LEAVE_SRC; /* same as FB_PERLQQ */ | |
565 | }else{ | |
566 | check = SvIV(check_sv); | |
567 | } | |
220e2d4e | 568 | sv_catsv(dst, encode_method(aTHX_ enc, enc->t_utf8, src, check, |
370462a2 | 569 | &offset, term, &code, fallback_cb)); |
b162af07 | 570 | SvIV_set(off, (IV)offset); |
220e2d4e | 571 | if (code == ENCODE_FOUND_TERM) { |
d1256cb1 | 572 | ST(0) = &PL_sv_yes; |
220e2d4e | 573 | }else{ |
d1256cb1 | 574 | ST(0) = &PL_sv_no; |
220e2d4e IH |
575 | } |
576 | XSRETURN(1); | |
577 | } | |
578 | ||
579 | void | |
8e180e82 | 580 | Method_decode(obj,src,check_sv = &PL_sv_no) |
2f2b4ff2 NIS |
581 | SV * obj |
582 | SV * src | |
8e180e82 | 583 | SV * check_sv |
2f2b4ff2 | 584 | CODE: |
aae85ceb | 585 | { |
8e180e82 | 586 | int check; |
370462a2 | 587 | SV *fallback_cb = &PL_sv_undef; |
85982a32 | 588 | encode_t *enc = INT2PTR(encode_t *, SvIV(SvRV(obj))); |
ab3374e4 DK |
589 | if (SvUTF8(src)) { |
590 | sv_utf8_downgrade(src, FALSE); | |
591 | } | |
8e180e82 | 592 | if (SvROK(check_sv)){ |
370462a2 RGS |
593 | fallback_cb = check_sv; |
594 | check = ENCODE_PERLQQ|ENCODE_LEAVE_SRC; /* same as FB_PERLQQ */ | |
8e180e82 | 595 | }else{ |
370462a2 | 596 | check = SvIV(check_sv); |
8e180e82 | 597 | } |
220e2d4e | 598 | ST(0) = encode_method(aTHX_ enc, enc->t_utf8, src, check, |
370462a2 | 599 | NULL, Nullsv, NULL, fallback_cb); |
85982a32 | 600 | SvUTF8_on(ST(0)); |
aae85ceb DK |
601 | XSRETURN(1); |
602 | } | |
603 | ||
604 | void | |
8e180e82 | 605 | Method_encode(obj,src,check_sv = &PL_sv_no) |
aae85ceb | 606 | SV * obj |
85982a32 | 607 | SV * src |
8e180e82 | 608 | SV * check_sv |
aae85ceb DK |
609 | CODE: |
610 | { | |
8e180e82 | 611 | int check; |
370462a2 | 612 | SV *fallback_cb = &PL_sv_undef; |
85982a32 JH |
613 | encode_t *enc = INT2PTR(encode_t *, SvIV(SvRV(obj))); |
614 | sv_utf8_upgrade(src); | |
8e180e82 | 615 | if (SvROK(check_sv)){ |
370462a2 RGS |
616 | fallback_cb = check_sv; |
617 | check = ENCODE_PERLQQ|ENCODE_LEAVE_SRC; /* same as FB_PERLQQ */ | |
8e180e82 | 618 | }else{ |
370462a2 | 619 | check = SvIV(check_sv); |
8e180e82 | 620 | } |
220e2d4e | 621 | ST(0) = encode_method(aTHX_ enc, enc->f_utf8, src, check, |
370462a2 | 622 | NULL, Nullsv, NULL, fallback_cb); |
aae85ceb DK |
623 | XSRETURN(1); |
624 | } | |
625 | ||
0ab8f81e JH |
626 | void |
627 | Method_needs_lines(obj) | |
628 | SV * obj | |
629 | CODE: | |
630 | { | |
b32afa7c | 631 | /* encode_t *enc = INT2PTR(encode_t *, SvIV(SvRV(obj))); */ |
0ab8f81e JH |
632 | ST(0) = &PL_sv_no; |
633 | XSRETURN(1); | |
634 | } | |
635 | ||
636 | void | |
637 | Method_perlio_ok(obj) | |
638 | SV * obj | |
639 | CODE: | |
640 | { | |
b32afa7c | 641 | /* encode_t *enc = INT2PTR(encode_t *, SvIV(SvRV(obj))); */ |
10c5ecbb JH |
642 | /* require_pv(PERLIO_FILENAME); */ |
643 | ||
644 | eval_pv("require PerlIO::encoding", 0); | |
645 | ||
646 | if (SvTRUE(get_sv("@", 0))) { | |
d1256cb1 | 647 | ST(0) = &PL_sv_no; |
10c5ecbb | 648 | }else{ |
d1256cb1 | 649 | ST(0) = &PL_sv_yes; |
0ab8f81e JH |
650 | } |
651 | XSRETURN(1); | |
652 | } | |
653 | ||
742555bd SP |
654 | void |
655 | Method_mime_name(obj) | |
656 | SV * obj | |
657 | CODE: | |
658 | { | |
659 | encode_t *enc = INT2PTR(encode_t *, SvIV(SvRV(obj))); | |
660 | SV *retval; | |
661 | eval_pv("require Encode::MIME::Name", 0); | |
662 | ||
663 | if (SvTRUE(get_sv("@", 0))) { | |
664 | ST(0) = &PL_sv_undef; | |
665 | }else{ | |
666 | ENTER; | |
667 | SAVETMPS; | |
668 | PUSHMARK(sp); | |
669 | XPUSHs(sv_2mortal(newSVpvn(enc->name[0], strlen(enc->name[0])))); | |
670 | PUTBACK; | |
671 | call_pv("Encode::MIME::Name::get_mime_name", G_SCALAR); | |
672 | SPAGAIN; | |
673 | retval = newSVsv(POPs); | |
674 | PUTBACK; | |
675 | FREETMPS; | |
676 | LEAVE; | |
677 | /* enc->name[0] */ | |
678 | ST(0) = retval; | |
679 | } | |
680 | XSRETURN(1); | |
681 | } | |
682 | ||
67e989fb | 683 | MODULE = Encode PACKAGE = Encode |
2c674647 JH |
684 | |
685 | PROTOTYPES: ENABLE | |
686 | ||
67e989fb | 687 | I32 |
2c674647 | 688 | _bytes_to_utf8(sv, ...) |
85982a32 JH |
689 | SV * sv |
690 | CODE: | |
691 | { | |
692 | SV * encoding = items == 2 ? ST(1) : Nullsv; | |
c6a7db43 | 693 | |
85982a32 JH |
694 | if (encoding) |
695 | RETVAL = _encoded_bytes_to_utf8(sv, SvPV_nolen(encoding)); | |
696 | else { | |
d1256cb1 RGS |
697 | STRLEN len; |
698 | U8* s = (U8*)SvPV(sv, len); | |
699 | U8* converted; | |
700 | ||
701 | converted = bytes_to_utf8(s, &len); /* This allocs */ | |
702 | sv_setpvn(sv, (char *)converted, len); | |
703 | SvUTF8_on(sv); /* XXX Should we? */ | |
704 | Safefree(converted); /* ... so free it */ | |
705 | RETVAL = len; | |
85982a32 JH |
706 | } |
707 | } | |
708 | OUTPUT: | |
709 | RETVAL | |
2c674647 | 710 | |
67e989fb | 711 | I32 |
2c674647 | 712 | _utf8_to_bytes(sv, ...) |
85982a32 JH |
713 | SV * sv |
714 | CODE: | |
715 | { | |
716 | SV * to = items > 1 ? ST(1) : Nullsv; | |
717 | SV * check = items > 2 ? ST(2) : Nullsv; | |
718 | ||
719 | if (to) { | |
d1256cb1 | 720 | RETVAL = _encoded_utf8_to_bytes(sv, SvPV_nolen(to)); |
85982a32 | 721 | } else { |
d1256cb1 RGS |
722 | STRLEN len; |
723 | U8 *s = (U8*)SvPV(sv, len); | |
85982a32 | 724 | |
d1256cb1 RGS |
725 | RETVAL = 0; |
726 | if (SvTRUE(check)) { | |
727 | /* Must do things the slow way */ | |
728 | U8 *dest; | |
85982a32 | 729 | /* We need a copy to pass to check() */ |
2cdf8b6c | 730 | U8 *src = s; |
d1256cb1 | 731 | U8 *send = s + len; |
2cdf8b6c | 732 | U8 *d0; |
85982a32 | 733 | |
d1256cb1 | 734 | New(83, dest, len, U8); /* I think */ |
2cdf8b6c | 735 | d0 = dest; |
85982a32 | 736 | |
d1256cb1 | 737 | while (s < send) { |
85982a32 | 738 | if (*s < 0x80){ |
d1256cb1 | 739 | *dest++ = *s++; |
85982a32 | 740 | } else { |
d1256cb1 RGS |
741 | STRLEN ulen; |
742 | UV uv = *s++; | |
743 | ||
744 | /* Have to do it all ourselves because of error routine, | |
745 | aargh. */ | |
746 | if (!(uv & 0x40)){ goto failure; } | |
747 | if (!(uv & 0x20)) { ulen = 2; uv &= 0x1f; } | |
748 | else if (!(uv & 0x10)) { ulen = 3; uv &= 0x0f; } | |
749 | else if (!(uv & 0x08)) { ulen = 4; uv &= 0x07; } | |
750 | else if (!(uv & 0x04)) { ulen = 5; uv &= 0x03; } | |
751 | else if (!(uv & 0x02)) { ulen = 6; uv &= 0x01; } | |
752 | else if (!(uv & 0x01)) { ulen = 7; uv = 0; } | |
753 | else { ulen = 13; uv = 0; } | |
754 | ||
755 | /* Note change to utf8.c variable naming, for variety */ | |
756 | while (ulen--) { | |
757 | if ((*s & 0xc0) != 0x80){ | |
758 | goto failure; | |
759 | } else { | |
760 | uv = (uv << 6) | (*s++ & 0x3f); | |
761 | } | |
762 | } | |
763 | if (uv > 256) { | |
764 | failure: | |
765 | call_failure(check, s, dest, src); | |
766 | /* Now what happens? */ | |
767 | } | |
768 | *dest++ = (U8)uv; | |
769 | } | |
770 | } | |
2cdf8b6c NC |
771 | RETVAL = dest - d0; |
772 | sv_usepvn(sv, (char *)dest, RETVAL); | |
773 | SvUTF8_off(sv); | |
d1256cb1 RGS |
774 | } else { |
775 | RETVAL = (utf8_to_bytes(s, &len) ? len : 0); | |
776 | } | |
85982a32 JH |
777 | } |
778 | } | |
779 | OUTPUT: | |
780 | RETVAL | |
2c674647 | 781 | |
2c674647 | 782 | bool |
b2704119 | 783 | is_utf8(sv, check = 0) |
4411f3b6 | 784 | SV * sv |
b2704119 | 785 | int check |
85982a32 JH |
786 | CODE: |
787 | { | |
788 | if (SvGMAGICAL(sv)) /* it could be $1, for example */ | |
d1256cb1 | 789 | sv = newSVsv(sv); /* GMAGIG will be done */ |
d1256cb1 RGS |
790 | RETVAL = SvUTF8(sv) ? TRUE : FALSE; |
791 | if (RETVAL && | |
792 | check && | |
793 | !is_utf8_string((U8*)SvPVX(sv), SvCUR(sv))) | |
794 | RETVAL = FALSE; | |
85982a32 | 795 | if (sv != ST(0)) |
d1256cb1 | 796 | SvREFCNT_dec(sv); /* it was a temp copy */ |
85982a32 JH |
797 | } |
798 | OUTPUT: | |
799 | RETVAL | |
2c674647 JH |
800 | |
801 | SV * | |
4411f3b6 | 802 | _utf8_on(sv) |
85982a32 JH |
803 | SV * sv |
804 | CODE: | |
805 | { | |
806 | if (SvPOK(sv)) { | |
d1256cb1 RGS |
807 | SV *rsv = newSViv(SvUTF8(sv)); |
808 | RETVAL = rsv; | |
809 | SvUTF8_on(sv); | |
85982a32 | 810 | } else { |
d1256cb1 | 811 | RETVAL = &PL_sv_undef; |
85982a32 JH |
812 | } |
813 | } | |
814 | OUTPUT: | |
815 | RETVAL | |
2c674647 JH |
816 | |
817 | SV * | |
4411f3b6 | 818 | _utf8_off(sv) |
85982a32 JH |
819 | SV * sv |
820 | CODE: | |
821 | { | |
822 | if (SvPOK(sv)) { | |
d1256cb1 RGS |
823 | SV *rsv = newSViv(SvUTF8(sv)); |
824 | RETVAL = rsv; | |
825 | SvUTF8_off(sv); | |
85982a32 | 826 | } else { |
d1256cb1 | 827 | RETVAL = &PL_sv_undef; |
85982a32 JH |
828 | } |
829 | } | |
830 | OUTPUT: | |
831 | RETVAL | |
832 | ||
85982a32 JH |
833 | int |
834 | DIE_ON_ERR() | |
835 | CODE: | |
836 | RETVAL = ENCODE_DIE_ON_ERR; | |
837 | OUTPUT: | |
838 | RETVAL | |
839 | ||
c6a7db43 | 840 | int |
85982a32 JH |
841 | WARN_ON_ERR() |
842 | CODE: | |
843 | RETVAL = ENCODE_WARN_ON_ERR; | |
844 | OUTPUT: | |
845 | RETVAL | |
846 | ||
847 | int | |
848 | LEAVE_SRC() | |
849 | CODE: | |
850 | RETVAL = ENCODE_LEAVE_SRC; | |
851 | OUTPUT: | |
852 | RETVAL | |
853 | ||
854 | int | |
855 | RETURN_ON_ERR() | |
856 | CODE: | |
857 | RETVAL = ENCODE_RETURN_ON_ERR; | |
858 | OUTPUT: | |
859 | RETVAL | |
860 | ||
861 | int | |
862 | PERLQQ() | |
863 | CODE: | |
864 | RETVAL = ENCODE_PERLQQ; | |
865 | OUTPUT: | |
866 | RETVAL | |
867 | ||
868 | int | |
af1f55d9 JH |
869 | HTMLCREF() |
870 | CODE: | |
871 | RETVAL = ENCODE_HTMLCREF; | |
872 | OUTPUT: | |
873 | RETVAL | |
874 | ||
875 | int | |
876 | XMLCREF() | |
877 | CODE: | |
878 | RETVAL = ENCODE_XMLCREF; | |
879 | OUTPUT: | |
880 | RETVAL | |
881 | ||
882 | int | |
56ff7374 RGS |
883 | STOP_AT_PARTIAL() |
884 | CODE: | |
885 | RETVAL = ENCODE_STOP_AT_PARTIAL; | |
886 | OUTPUT: | |
887 | RETVAL | |
888 | ||
889 | int | |
85982a32 JH |
890 | FB_DEFAULT() |
891 | CODE: | |
892 | RETVAL = ENCODE_FB_DEFAULT; | |
893 | OUTPUT: | |
894 | RETVAL | |
895 | ||
896 | int | |
897 | FB_CROAK() | |
898 | CODE: | |
899 | RETVAL = ENCODE_FB_CROAK; | |
900 | OUTPUT: | |
901 | RETVAL | |
902 | ||
903 | int | |
904 | FB_QUIET() | |
905 | CODE: | |
906 | RETVAL = ENCODE_FB_QUIET; | |
907 | OUTPUT: | |
908 | RETVAL | |
909 | ||
910 | int | |
911 | FB_WARN() | |
912 | CODE: | |
913 | RETVAL = ENCODE_FB_WARN; | |
914 | OUTPUT: | |
915 | RETVAL | |
916 | ||
917 | int | |
918 | FB_PERLQQ() | |
919 | CODE: | |
920 | RETVAL = ENCODE_FB_PERLQQ; | |
921 | OUTPUT: | |
922 | RETVAL | |
2c674647 | 923 | |
af1f55d9 JH |
924 | int |
925 | FB_HTMLCREF() | |
926 | CODE: | |
927 | RETVAL = ENCODE_FB_HTMLCREF; | |
928 | OUTPUT: | |
929 | RETVAL | |
930 | ||
931 | int | |
932 | FB_XMLCREF() | |
933 | CODE: | |
934 | RETVAL = ENCODE_FB_XMLCREF; | |
935 | OUTPUT: | |
936 | RETVAL | |
937 | ||
33af2bc7 NIS |
938 | BOOT: |
939 | { | |
85982a32 | 940 | #include "def_t.h" |
e7cbefb8 | 941 | #include "def_t.exh" |
33af2bc7 | 942 | } |