Commit | Line | Data |
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d6376244 JH |
1 | /* universal.c |
2 | * | |
b5f8cc5c | 3 | * Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, |
1129b882 | 4 | * 2005, 2006, 2007, 2008 by Larry Wall and others |
d6376244 JH |
5 | * |
6 | * You may distribute under the terms of either the GNU General Public | |
7 | * License or the Artistic License, as specified in the README file. | |
8 | * | |
9 | */ | |
10 | ||
d31a8517 | 11 | /* |
4ac71550 TC |
12 | * '"The roots of those mountains must be roots indeed; there must be |
13 | * great secrets buried there which have not been discovered since the | |
14 | * beginning."' --Gandalf, relating Gollum's history | |
15 | * | |
16 | * [p.54 of _The Lord of the Rings_, I/ii: "The Shadow of the Past"] | |
d31a8517 AT |
17 | */ |
18 | ||
166f8a29 DM |
19 | /* This file contains the code that implements the functions in Perl's |
20 | * UNIVERSAL package, such as UNIVERSAL->can(). | |
192b9cd1 AB |
21 | * |
22 | * It is also used to store XS functions that need to be present in | |
23 | * miniperl for a lack of a better place to put them. It might be | |
486ec47a | 24 | * clever to move them to separate XS files which would then be pulled |
192b9cd1 | 25 | * in by some to-be-written build process. |
166f8a29 DM |
26 | */ |
27 | ||
6d4a7be2 | 28 | #include "EXTERN.h" |
864dbfa3 | 29 | #define PERL_IN_UNIVERSAL_C |
6d4a7be2 | 30 | #include "perl.h" |
6d4a7be2 | 31 | |
39f7a870 JH |
32 | #ifdef USE_PERLIO |
33 | #include "perliol.h" /* For the PERLIO_F_XXX */ | |
34 | #endif | |
35 | ||
6d4a7be2 PP |
36 | /* |
37 | * Contributed by Graham Barr <Graham.Barr@tiuk.ti.com> | |
38 | * The main guts of traverse_isa was actually copied from gv_fetchmeth | |
39 | */ | |
40 | ||
a9ec700e | 41 | STATIC bool |
c7abbf64 | 42 | S_isa_lookup(pTHX_ HV *stash, const char * const name, STRLEN len, U32 flags) |
6d4a7be2 | 43 | { |
97aff369 | 44 | dVAR; |
a49ba3fc | 45 | const struct mro_meta *const meta = HvMROMETA(stash); |
4340b386 | 46 | HV *isa = meta->isa; |
a49ba3fc | 47 | const HV *our_stash; |
6d4a7be2 | 48 | |
7918f24d NC |
49 | PERL_ARGS_ASSERT_ISA_LOOKUP; |
50 | ||
4340b386 FC |
51 | if (!isa) { |
52 | (void)mro_get_linear_isa(stash); | |
53 | isa = meta->isa; | |
54 | } | |
55 | ||
c7abbf64 | 56 | if (hv_common(isa, NULL, name, len, ( flags & SVf_UTF8 ? HVhek_UTF8 : 0), |
a49ba3fc NC |
57 | HV_FETCH_ISEXISTS, NULL, 0)) { |
58 | /* Direct name lookup worked. */ | |
a9ec700e | 59 | return TRUE; |
a49ba3fc | 60 | } |
6d4a7be2 | 61 | |
a49ba3fc | 62 | /* A stash/class can go by many names (ie. User == main::User), so |
81a5123c FC |
63 | we use the HvENAME in the stash itself, which is canonical, falling |
64 | back to HvNAME if necessary. */ | |
c7abbf64 | 65 | our_stash = gv_stashpvn(name, len, flags); |
a49ba3fc NC |
66 | |
67 | if (our_stash) { | |
81a5123c FC |
68 | HEK *canon_name = HvENAME_HEK(our_stash); |
69 | if (!canon_name) canon_name = HvNAME_HEK(our_stash); | |
a1d407e8 | 70 | |
a49ba3fc NC |
71 | if (hv_common(isa, NULL, HEK_KEY(canon_name), HEK_LEN(canon_name), |
72 | HEK_FLAGS(canon_name), | |
73 | HV_FETCH_ISEXISTS, NULL, HEK_HASH(canon_name))) { | |
e1a479c5 | 74 | return TRUE; |
a49ba3fc | 75 | } |
6d4a7be2 PP |
76 | } |
77 | ||
a9ec700e | 78 | return FALSE; |
6d4a7be2 PP |
79 | } |
80 | ||
954c1994 | 81 | /* |
ccfc67b7 JH |
82 | =head1 SV Manipulation Functions |
83 | ||
c7abbf64 | 84 | =for apidoc sv_derived_from_pvn |
954c1994 | 85 | |
6885da0e | 86 | Returns a boolean indicating whether the SV is derived from the specified class |
87 | I<at the C level>. To check derivation at the Perl level, call C<isa()> as a | |
88 | normal Perl method. | |
954c1994 | 89 | |
c7abbf64 BF |
90 | Currently, the only significant value for C<flags> is SVf_UTF8. |
91 | ||
92 | =cut | |
93 | ||
94 | =for apidoc sv_derived_from_sv | |
95 | ||
96 | Exactly like L</sv_derived_from_pvn>, but takes the name string in the form | |
97 | of an SV instead of a string/length pair. | |
98 | ||
99 | =cut | |
100 | ||
101 | */ | |
102 | ||
103 | bool | |
104 | Perl_sv_derived_from_sv(pTHX_ SV *sv, SV *namesv, U32 flags) | |
105 | { | |
106 | char *namepv; | |
107 | STRLEN namelen; | |
108 | PERL_ARGS_ASSERT_SV_DERIVED_FROM_SV; | |
109 | namepv = SvPV(namesv, namelen); | |
110 | if (SvUTF8(namesv)) | |
111 | flags |= SVf_UTF8; | |
112 | return sv_derived_from_pvn(sv, namepv, namelen, flags); | |
113 | } | |
114 | ||
115 | /* | |
116 | =for apidoc sv_derived_from | |
117 | ||
118 | Exactly like L</sv_derived_from_pv>, but doesn't take a C<flags> parameter. | |
119 | ||
954c1994 GS |
120 | =cut |
121 | */ | |
122 | ||
55497cff | 123 | bool |
15f169a1 | 124 | Perl_sv_derived_from(pTHX_ SV *sv, const char *const name) |
55497cff | 125 | { |
c7abbf64 BF |
126 | PERL_ARGS_ASSERT_SV_DERIVED_FROM; |
127 | return sv_derived_from_pvn(sv, name, strlen(name), 0); | |
128 | } | |
129 | ||
130 | /* | |
131 | =for apidoc sv_derived_from_pv | |
132 | ||
133 | Exactly like L</sv_derived_from_pvn>, but takes a nul-terminated string | |
134 | instead of a string/length pair. | |
135 | ||
136 | =cut | |
137 | */ | |
138 | ||
139 | ||
140 | bool | |
141 | Perl_sv_derived_from_pv(pTHX_ SV *sv, const char *const name, U32 flags) | |
142 | { | |
143 | PERL_ARGS_ASSERT_SV_DERIVED_FROM_PV; | |
144 | return sv_derived_from_pvn(sv, name, strlen(name), flags); | |
145 | } | |
146 | ||
147 | bool | |
148 | Perl_sv_derived_from_pvn(pTHX_ SV *sv, const char *const name, const STRLEN len, U32 flags) | |
149 | { | |
97aff369 | 150 | dVAR; |
0b6f4f5c | 151 | HV *stash; |
46e4b22b | 152 | |
c7abbf64 | 153 | PERL_ARGS_ASSERT_SV_DERIVED_FROM_PVN; |
7918f24d | 154 | |
5b295bef | 155 | SvGETMAGIC(sv); |
55497cff | 156 | |
c7abbf64 | 157 | if (SvROK(sv)) { /* hugdo: */ |
0b6f4f5c | 158 | const char *type; |
55497cff PP |
159 | sv = SvRV(sv); |
160 | type = sv_reftype(sv,0); | |
0b6f4f5c AL |
161 | if (type && strEQ(type,name)) |
162 | return TRUE; | |
163 | stash = SvOBJECT(sv) ? SvSTASH(sv) : NULL; | |
55497cff PP |
164 | } |
165 | else { | |
da51bb9b | 166 | stash = gv_stashsv(sv, 0); |
55497cff | 167 | } |
46e4b22b | 168 | |
c7abbf64 | 169 | return stash ? isa_lookup(stash, name, len, flags) : FALSE; |
55497cff PP |
170 | } |
171 | ||
cbc021f9 | 172 | /* |
d20c2c29 | 173 | =for apidoc sv_does_sv |
cbc021f9 | 174 | |
175 | Returns a boolean indicating whether the SV performs a specific, named role. | |
176 | The SV can be a Perl object or the name of a Perl class. | |
177 | ||
178 | =cut | |
179 | */ | |
180 | ||
1b026014 NIS |
181 | #include "XSUB.h" |
182 | ||
cbc021f9 | 183 | bool |
f778bcfd | 184 | Perl_sv_does_sv(pTHX_ SV *sv, SV *namesv, U32 flags) |
cbc021f9 | 185 | { |
f778bcfd | 186 | SV *classname; |
cbc021f9 | 187 | bool does_it; |
59e7186f | 188 | SV *methodname; |
cbc021f9 | 189 | dSP; |
7918f24d | 190 | |
f778bcfd BF |
191 | PERL_ARGS_ASSERT_SV_DOES_SV; |
192 | PERL_UNUSED_ARG(flags); | |
7918f24d | 193 | |
cbc021f9 | 194 | ENTER; |
195 | SAVETMPS; | |
196 | ||
197 | SvGETMAGIC(sv); | |
198 | ||
199 | if (!SvOK(sv) || !(SvROK(sv) || (SvPOK(sv) && SvCUR(sv)) | |
7ce46f2a GG |
200 | || (SvGMAGICAL(sv) && SvPOKp(sv) && SvCUR(sv)))) { |
201 | LEAVE; | |
cbc021f9 | 202 | return FALSE; |
7ce46f2a | 203 | } |
cbc021f9 | 204 | |
205 | if (sv_isobject(sv)) { | |
f778bcfd | 206 | classname = sv_ref(NULL,SvRV(sv),TRUE); |
cbc021f9 | 207 | } else { |
f778bcfd | 208 | classname = sv; |
cbc021f9 | 209 | } |
210 | ||
f778bcfd | 211 | if (sv_eq(classname, namesv)) { |
7ce46f2a | 212 | LEAVE; |
cbc021f9 | 213 | return TRUE; |
7ce46f2a | 214 | } |
cbc021f9 | 215 | |
216 | PUSHMARK(SP); | |
f778bcfd BF |
217 | EXTEND(SP, 2); |
218 | PUSHs(sv); | |
219 | PUSHs(namesv); | |
cbc021f9 | 220 | PUTBACK; |
221 | ||
84bafc02 | 222 | methodname = newSVpvs_flags("isa", SVs_TEMP); |
59e7186f RGS |
223 | /* ugly hack: use the SvSCREAM flag so S_method_common |
224 | * can figure out we're calling DOES() and not isa(), | |
225 | * and report eventual errors correctly. --rgs */ | |
226 | SvSCREAM_on(methodname); | |
227 | call_sv(methodname, G_SCALAR | G_METHOD); | |
cbc021f9 | 228 | SPAGAIN; |
229 | ||
230 | does_it = SvTRUE( TOPs ); | |
231 | FREETMPS; | |
232 | LEAVE; | |
233 | ||
234 | return does_it; | |
235 | } | |
236 | ||
afa74d42 | 237 | /* |
f778bcfd BF |
238 | =for apidoc sv_does |
239 | ||
d20c2c29 | 240 | Like L</sv_does_pv>, but doesn't take a C<flags> parameter. |
f778bcfd BF |
241 | |
242 | =cut | |
243 | */ | |
244 | ||
245 | bool | |
246 | Perl_sv_does(pTHX_ SV *sv, const char *const name) | |
247 | { | |
248 | PERL_ARGS_ASSERT_SV_DOES; | |
249 | return sv_does_sv(sv, newSVpvn_flags(name, strlen(name), SVs_TEMP), 0); | |
250 | } | |
251 | ||
252 | /* | |
253 | =for apidoc sv_does_pv | |
254 | ||
d20c2c29 | 255 | Like L</sv_does_pvn>, but takes a nul-terminated string |
f778bcfd BF |
256 | instead of a string/length pair. |
257 | ||
258 | =cut | |
259 | */ | |
260 | ||
261 | ||
262 | bool | |
263 | Perl_sv_does_pv(pTHX_ SV *sv, const char *const name, U32 flags) | |
264 | { | |
265 | PERL_ARGS_ASSERT_SV_DOES_PV; | |
266 | return sv_does_sv(sv, newSVpvn_flags(name, strlen(name), SVs_TEMP | flags), flags); | |
267 | } | |
268 | ||
269 | bool | |
270 | Perl_sv_does_pvn(pTHX_ SV *sv, const char *const name, const STRLEN len, U32 flags) | |
271 | { | |
272 | PERL_ARGS_ASSERT_SV_DOES_PVN; | |
273 | ||
274 | return sv_does_sv(sv, newSVpvn_flags(name, len, flags | SVs_TEMP), flags); | |
275 | } | |
276 | ||
277 | /* | |
afa74d42 NC |
278 | =for apidoc croak_xs_usage |
279 | ||
280 | A specialised variant of C<croak()> for emitting the usage message for xsubs | |
281 | ||
282 | croak_xs_usage(cv, "eee_yow"); | |
283 | ||
284 | works out the package name and subroutine name from C<cv>, and then calls | |
285 | C<croak()>. Hence if C<cv> is C<&ouch::awk>, it would call C<croak> as: | |
286 | ||
1b1ee2ef | 287 | Perl_croak(aTHX_ "Usage: %s::%s(%s)", "ouch" "awk", "eee_yow"); |
afa74d42 NC |
288 | |
289 | =cut | |
290 | */ | |
291 | ||
292 | void | |
293 | Perl_croak_xs_usage(pTHX_ const CV *const cv, const char *const params) | |
294 | { | |
295 | const GV *const gv = CvGV(cv); | |
296 | ||
297 | PERL_ARGS_ASSERT_CROAK_XS_USAGE; | |
298 | ||
299 | if (gv) { | |
300 | const char *const gvname = GvNAME(gv); | |
301 | const HV *const stash = GvSTASH(gv); | |
302 | const char *const hvname = stash ? HvNAME_get(stash) : NULL; | |
303 | ||
304 | if (hvname) | |
305 | Perl_croak(aTHX_ "Usage: %s::%s(%s)", hvname, gvname, params); | |
306 | else | |
307 | Perl_croak(aTHX_ "Usage: %s(%s)", gvname, params); | |
308 | } else { | |
309 | /* Pants. I don't think that it should be possible to get here. */ | |
93c51217 | 310 | Perl_croak(aTHX_ "Usage: CODE(0x%"UVxf")(%s)", PTR2UV(cv), params); |
afa74d42 NC |
311 | } |
312 | } | |
55497cff | 313 | |
6d4a7be2 PP |
314 | XS(XS_UNIVERSAL_isa) |
315 | { | |
97aff369 | 316 | dVAR; |
6d4a7be2 | 317 | dXSARGS; |
6d4a7be2 PP |
318 | |
319 | if (items != 2) | |
afa74d42 | 320 | croak_xs_usage(cv, "reference, kind"); |
c4420975 AL |
321 | else { |
322 | SV * const sv = ST(0); | |
6d4a7be2 | 323 | |
c4420975 | 324 | SvGETMAGIC(sv); |
d3f7f2b2 | 325 | |
c4420975 AL |
326 | if (!SvOK(sv) || !(SvROK(sv) || (SvPOK(sv) && SvCUR(sv)) |
327 | || (SvGMAGICAL(sv) && SvPOKp(sv) && SvCUR(sv)))) | |
328 | XSRETURN_UNDEF; | |
f8f70380 | 329 | |
c7abbf64 | 330 | ST(0) = boolSV(sv_derived_from_sv(sv, ST(1), 0)); |
c4420975 AL |
331 | XSRETURN(1); |
332 | } | |
6d4a7be2 PP |
333 | } |
334 | ||
6d4a7be2 PP |
335 | XS(XS_UNIVERSAL_can) |
336 | { | |
97aff369 | 337 | dVAR; |
6d4a7be2 PP |
338 | dXSARGS; |
339 | SV *sv; | |
6d4a7be2 | 340 | SV *rv; |
6f08146e | 341 | HV *pkg = NULL; |
6d4a7be2 PP |
342 | |
343 | if (items != 2) | |
afa74d42 | 344 | croak_xs_usage(cv, "object-ref, method"); |
6d4a7be2 PP |
345 | |
346 | sv = ST(0); | |
f8f70380 | 347 | |
5b295bef | 348 | SvGETMAGIC(sv); |
d3f7f2b2 | 349 | |
253ecd6d RGS |
350 | if (!SvOK(sv) || !(SvROK(sv) || (SvPOK(sv) && SvCUR(sv)) |
351 | || (SvGMAGICAL(sv) && SvPOKp(sv) && SvCUR(sv)))) | |
f8f70380 GS |
352 | XSRETURN_UNDEF; |
353 | ||
3280af22 | 354 | rv = &PL_sv_undef; |
6d4a7be2 | 355 | |
46e4b22b | 356 | if (SvROK(sv)) { |
daba3364 | 357 | sv = MUTABLE_SV(SvRV(sv)); |
46e4b22b | 358 | if (SvOBJECT(sv)) |
6f08146e NIS |
359 | pkg = SvSTASH(sv); |
360 | } | |
361 | else { | |
da51bb9b | 362 | pkg = gv_stashsv(sv, 0); |
6f08146e NIS |
363 | } |
364 | ||
365 | if (pkg) { | |
a00b390b | 366 | GV * const gv = gv_fetchmethod_sv_flags(pkg, ST(1), 0); |
dc848c6f | 367 | if (gv && isGV(gv)) |
daba3364 | 368 | rv = sv_2mortal(newRV(MUTABLE_SV(GvCV(gv)))); |
6d4a7be2 PP |
369 | } |
370 | ||
371 | ST(0) = rv; | |
372 | XSRETURN(1); | |
373 | } | |
374 | ||
cbc021f9 | 375 | XS(XS_UNIVERSAL_DOES) |
376 | { | |
377 | dVAR; | |
378 | dXSARGS; | |
58c0efa5 | 379 | PERL_UNUSED_ARG(cv); |
cbc021f9 | 380 | |
381 | if (items != 2) | |
46404226 | 382 | Perl_croak(aTHX_ "Usage: invocant->DOES(kind)"); |
cbc021f9 | 383 | else { |
384 | SV * const sv = ST(0); | |
f778bcfd | 385 | if (sv_does_sv( sv, ST(1), 0 )) |
cbc021f9 | 386 | XSRETURN_YES; |
387 | ||
388 | XSRETURN_NO; | |
389 | } | |
390 | } | |
391 | ||
6d4a7be2 PP |
392 | XS(XS_UNIVERSAL_VERSION) |
393 | { | |
97aff369 | 394 | dVAR; |
6d4a7be2 PP |
395 | dXSARGS; |
396 | HV *pkg; | |
397 | GV **gvp; | |
398 | GV *gv; | |
399 | SV *sv; | |
9bf41c1d | 400 | SV *ret; |
e1ec3a88 | 401 | const char *undef; |
58c0efa5 | 402 | PERL_UNUSED_ARG(cv); |
6d4a7be2 | 403 | |
1571675a | 404 | if (SvROK(ST(0))) { |
daba3364 | 405 | sv = MUTABLE_SV(SvRV(ST(0))); |
1571675a | 406 | if (!SvOBJECT(sv)) |
cea2e8a9 | 407 | Perl_croak(aTHX_ "Cannot find version of an unblessed reference"); |
6d4a7be2 PP |
408 | pkg = SvSTASH(sv); |
409 | } | |
410 | else { | |
da51bb9b | 411 | pkg = gv_stashsv(ST(0), 0); |
6d4a7be2 PP |
412 | } |
413 | ||
4608196e | 414 | gvp = pkg ? (GV**)hv_fetchs(pkg, "VERSION", FALSE) : NULL; |
6d4a7be2 | 415 | |
0008872a | 416 | if (gvp && isGV(gv = *gvp) && (sv = GvSV(gv)) && SvOK(sv)) { |
9bf41c1d FC |
417 | ret = sv_newmortal(); |
418 | sv_setsv(ret, sv); | |
c445ea15 | 419 | undef = NULL; |
6d4a7be2 PP |
420 | } |
421 | else { | |
9bf41c1d | 422 | sv = ret = &PL_sv_undef; |
6d4a7be2 PP |
423 | undef = "(undef)"; |
424 | } | |
425 | ||
1571675a | 426 | if (items > 1) { |
1571675a GS |
427 | SV *req = ST(1); |
428 | ||
62658f4d | 429 | if (undef) { |
bfcb3514 | 430 | if (pkg) { |
c4420975 | 431 | const char * const name = HvNAME_get(pkg); |
a3b680e6 | 432 | Perl_croak(aTHX_ |
bfcb3514 NC |
433 | "%s does not define $%s::VERSION--version check failed", |
434 | name, name); | |
435 | } else { | |
a3b680e6 AL |
436 | Perl_croak(aTHX_ |
437 | "%s defines neither package nor VERSION--version check failed", | |
0510663f | 438 | SvPVx_nolen_const(ST(0)) ); |
62658f4d PM |
439 | } |
440 | } | |
ad63d80f | 441 | |
9bf41c1d FC |
442 | if ( !sv_derived_from(sv, "version")) |
443 | upg_version(sv, FALSE); | |
444 | ||
137d6fc0 JP |
445 | if ( !sv_derived_from(req, "version")) { |
446 | /* req may very well be R/O, so create a new object */ | |
ac0e6a2f | 447 | req = sv_2mortal( new_version(req) ); |
137d6fc0 | 448 | } |
1571675a | 449 | |
ac0e6a2f | 450 | if ( vcmp( req, sv ) > 0 ) { |
ef8f7699 | 451 | if ( hv_exists(MUTABLE_HV(SvRV(req)), "qv", 2 ) ) { |
ac0e6a2f RGS |
452 | Perl_croak(aTHX_ "%s version %"SVf" required--" |
453 | "this is only version %"SVf"", HvNAME_get(pkg), | |
e3a22e3f | 454 | SVfARG(sv_2mortal(vnormal(req))), |
455 | SVfARG(sv_2mortal(vnormal(sv)))); | |
ac0e6a2f RGS |
456 | } else { |
457 | Perl_croak(aTHX_ "%s version %"SVf" required--" | |
458 | "this is only version %"SVf"", HvNAME_get(pkg), | |
e3a22e3f | 459 | SVfARG(sv_2mortal(vstringify(req))), |
460 | SVfARG(sv_2mortal(vstringify(sv)))); | |
ac0e6a2f RGS |
461 | } |
462 | } | |
463 | ||
2d8e6c8d | 464 | } |
6d4a7be2 | 465 | |
9bf41c1d | 466 | ST(0) = ret; |
6d4a7be2 PP |
467 | |
468 | XSRETURN(1); | |
469 | } | |
470 | ||
439cb1c4 JP |
471 | XS(XS_version_new) |
472 | { | |
97aff369 | 473 | dVAR; |
439cb1c4 | 474 | dXSARGS; |
129318bd | 475 | if (items > 3) |
afa74d42 | 476 | croak_xs_usage(cv, "class, version"); |
439cb1c4 JP |
477 | SP -= items; |
478 | { | |
137d6fc0 JP |
479 | SV *vs = ST(1); |
480 | SV *rv; | |
c4420975 AL |
481 | const char * const classname = |
482 | sv_isobject(ST(0)) /* get the class if called as an object method */ | |
483 | ? HvNAME(SvSTASH(SvRV(ST(0)))) | |
484 | : (char *)SvPV_nolen(ST(0)); | |
9137345a | 485 | |
91152fc1 | 486 | if ( items == 1 || ! SvOK(vs) ) { /* no param or explicit undef */ |
92dcf8ce JP |
487 | /* create empty object */ |
488 | vs = sv_newmortal(); | |
be5574c0 | 489 | sv_setpvs(vs, "0"); |
9137345a JP |
490 | } |
491 | else if ( items == 3 ) { | |
492 | vs = sv_newmortal(); | |
cfd0369c | 493 | Perl_sv_setpvf(aTHX_ vs,"v%s",SvPV_nolen_const(ST(2))); |
129318bd | 494 | } |
439cb1c4 | 495 | |
137d6fc0 | 496 | rv = new_version(vs); |
0723351e | 497 | if ( strcmp(classname,"version") != 0 ) /* inherited new() */ |
da51bb9b | 498 | sv_bless(rv, gv_stashpv(classname, GV_ADD)); |
137d6fc0 | 499 | |
6e449a3a | 500 | mPUSHs(rv); |
439cb1c4 JP |
501 | PUTBACK; |
502 | return; | |
503 | } | |
504 | } | |
505 | ||
506 | XS(XS_version_stringify) | |
507 | { | |
97aff369 | 508 | dVAR; |
41be1fbd JH |
509 | dXSARGS; |
510 | if (items < 1) | |
afa74d42 | 511 | croak_xs_usage(cv, "lobj, ..."); |
41be1fbd JH |
512 | SP -= items; |
513 | { | |
d808b681 | 514 | SV * lobj = ST(0); |
41be1fbd | 515 | |
d808b681 JP |
516 | if (sv_derived_from(lobj, "version") && SvROK(lobj)) { |
517 | lobj = SvRV(lobj); | |
41be1fbd JH |
518 | } |
519 | else | |
520 | Perl_croak(aTHX_ "lobj is not of type version"); | |
521 | ||
6e449a3a | 522 | mPUSHs(vstringify(lobj)); |
41be1fbd JH |
523 | |
524 | PUTBACK; | |
525 | return; | |
526 | } | |
439cb1c4 JP |
527 | } |
528 | ||
529 | XS(XS_version_numify) | |
530 | { | |
97aff369 | 531 | dVAR; |
41be1fbd JH |
532 | dXSARGS; |
533 | if (items < 1) | |
afa74d42 | 534 | croak_xs_usage(cv, "lobj, ..."); |
41be1fbd JH |
535 | SP -= items; |
536 | { | |
d808b681 | 537 | SV * lobj = ST(0); |
41be1fbd | 538 | |
d808b681 JP |
539 | if (sv_derived_from(lobj, "version") && SvROK(lobj)) { |
540 | lobj = SvRV(lobj); | |
41be1fbd JH |
541 | } |
542 | else | |
543 | Perl_croak(aTHX_ "lobj is not of type version"); | |
544 | ||
6e449a3a | 545 | mPUSHs(vnumify(lobj)); |
41be1fbd JH |
546 | |
547 | PUTBACK; | |
548 | return; | |
549 | } | |
439cb1c4 JP |
550 | } |
551 | ||
9137345a JP |
552 | XS(XS_version_normal) |
553 | { | |
97aff369 | 554 | dVAR; |
9137345a JP |
555 | dXSARGS; |
556 | if (items < 1) | |
afa74d42 | 557 | croak_xs_usage(cv, "lobj, ..."); |
9137345a JP |
558 | SP -= items; |
559 | { | |
d808b681 | 560 | SV * lobj = ST(0); |
9137345a | 561 | |
d808b681 JP |
562 | if (sv_derived_from(lobj, "version") && SvROK(lobj)) { |
563 | lobj = SvRV(lobj); | |
9137345a JP |
564 | } |
565 | else | |
566 | Perl_croak(aTHX_ "lobj is not of type version"); | |
567 | ||
6e449a3a | 568 | mPUSHs(vnormal(lobj)); |
9137345a JP |
569 | |
570 | PUTBACK; | |
571 | return; | |
572 | } | |
573 | } | |
574 | ||
439cb1c4 JP |
575 | XS(XS_version_vcmp) |
576 | { | |
97aff369 | 577 | dVAR; |
41be1fbd JH |
578 | dXSARGS; |
579 | if (items < 1) | |
afa74d42 | 580 | croak_xs_usage(cv, "lobj, ..."); |
41be1fbd JH |
581 | SP -= items; |
582 | { | |
d808b681 | 583 | SV * lobj = ST(0); |
41be1fbd | 584 | |
d808b681 JP |
585 | if (sv_derived_from(lobj, "version") && SvROK(lobj)) { |
586 | lobj = SvRV(lobj); | |
41be1fbd JH |
587 | } |
588 | else | |
589 | Perl_croak(aTHX_ "lobj is not of type version"); | |
590 | ||
591 | { | |
592 | SV *rs; | |
593 | SV *rvs; | |
594 | SV * robj = ST(1); | |
7452cf6a | 595 | const IV swap = (IV)SvIV(ST(2)); |
41be1fbd JH |
596 | |
597 | if ( ! sv_derived_from(robj, "version") ) | |
598 | { | |
e3a22e3f | 599 | robj = new_version(SvOK(robj) ? robj : newSVpvs_flags("0", SVs_TEMP)); |
600 | sv_2mortal(robj); | |
41be1fbd JH |
601 | } |
602 | rvs = SvRV(robj); | |
603 | ||
604 | if ( swap ) | |
605 | { | |
606 | rs = newSViv(vcmp(rvs,lobj)); | |
607 | } | |
608 | else | |
609 | { | |
610 | rs = newSViv(vcmp(lobj,rvs)); | |
611 | } | |
612 | ||
6e449a3a | 613 | mPUSHs(rs); |
41be1fbd JH |
614 | } |
615 | ||
616 | PUTBACK; | |
617 | return; | |
618 | } | |
439cb1c4 JP |
619 | } |
620 | ||
621 | XS(XS_version_boolean) | |
622 | { | |
97aff369 JH |
623 | dVAR; |
624 | dXSARGS; | |
625 | if (items < 1) | |
afa74d42 | 626 | croak_xs_usage(cv, "lobj, ..."); |
97aff369 | 627 | SP -= items; |
d808b681 | 628 | if (sv_derived_from(ST(0), "version") && SvROK(ST(0))) { |
c4420975 | 629 | SV * const lobj = SvRV(ST(0)); |
396482e1 | 630 | SV * const rs = newSViv( vcmp(lobj,new_version(newSVpvs("0"))) ); |
6e449a3a | 631 | mPUSHs(rs); |
c4420975 AL |
632 | PUTBACK; |
633 | return; | |
634 | } | |
635 | else | |
636 | Perl_croak(aTHX_ "lobj is not of type version"); | |
439cb1c4 JP |
637 | } |
638 | ||
639 | XS(XS_version_noop) | |
640 | { | |
97aff369 | 641 | dVAR; |
2dfd8427 AL |
642 | dXSARGS; |
643 | if (items < 1) | |
afa74d42 | 644 | croak_xs_usage(cv, "lobj, ..."); |
d808b681 | 645 | if (sv_derived_from(ST(0), "version") && SvROK(ST(0))) |
2dfd8427 AL |
646 | Perl_croak(aTHX_ "operation not supported with version object"); |
647 | else | |
648 | Perl_croak(aTHX_ "lobj is not of type version"); | |
649 | #ifndef HASATTRIBUTE_NORETURN | |
650 | XSRETURN_EMPTY; | |
651 | #endif | |
439cb1c4 JP |
652 | } |
653 | ||
c8d69e4a JP |
654 | XS(XS_version_is_alpha) |
655 | { | |
97aff369 | 656 | dVAR; |
c8d69e4a JP |
657 | dXSARGS; |
658 | if (items != 1) | |
afa74d42 | 659 | croak_xs_usage(cv, "lobj"); |
c8d69e4a | 660 | SP -= items; |
d808b681 | 661 | if (sv_derived_from(ST(0), "version") && SvROK(ST(0))) { |
c4420975 | 662 | SV * const lobj = ST(0); |
ef8f7699 | 663 | if ( hv_exists(MUTABLE_HV(SvRV(lobj)), "alpha", 5 ) ) |
c4420975 AL |
664 | XSRETURN_YES; |
665 | else | |
666 | XSRETURN_NO; | |
c8d69e4a JP |
667 | PUTBACK; |
668 | return; | |
669 | } | |
c4420975 AL |
670 | else |
671 | Perl_croak(aTHX_ "lobj is not of type version"); | |
c8d69e4a JP |
672 | } |
673 | ||
137d6fc0 JP |
674 | XS(XS_version_qv) |
675 | { | |
97aff369 | 676 | dVAR; |
137d6fc0 | 677 | dXSARGS; |
4ed3fda4 | 678 | PERL_UNUSED_ARG(cv); |
137d6fc0 JP |
679 | SP -= items; |
680 | { | |
f941e658 JP |
681 | SV * ver = ST(0); |
682 | SV * rv; | |
683 | const char * classname = ""; | |
91152fc1 | 684 | if ( items == 2 && SvOK(ST(1)) ) { |
f941e658 JP |
685 | /* getting called as object or class method */ |
686 | ver = ST(1); | |
687 | classname = | |
688 | sv_isobject(ST(0)) /* class called as an object method */ | |
689 | ? HvNAME_get(SvSTASH(SvRV(ST(0)))) | |
690 | : (char *)SvPV_nolen(ST(0)); | |
691 | } | |
692 | if ( !SvVOK(ver) ) { /* not already a v-string */ | |
693 | rv = sv_newmortal(); | |
ac0e6a2f RGS |
694 | sv_setsv(rv,ver); /* make a duplicate */ |
695 | upg_version(rv, TRUE); | |
f941e658 JP |
696 | } else { |
697 | rv = sv_2mortal(new_version(ver)); | |
137d6fc0 | 698 | } |
f941e658 JP |
699 | if ( items == 2 && strcmp(classname,"version") ) { /* inherited new() */ |
700 | sv_bless(rv, gv_stashpv(classname, GV_ADD)); | |
137d6fc0 | 701 | } |
f941e658 JP |
702 | PUSHs(rv); |
703 | } | |
704 | PUTBACK; | |
705 | return; | |
706 | } | |
137d6fc0 | 707 | |
f941e658 JP |
708 | XS(XS_version_is_qv) |
709 | { | |
710 | dVAR; | |
711 | dXSARGS; | |
712 | if (items != 1) | |
713 | croak_xs_usage(cv, "lobj"); | |
714 | SP -= items; | |
d808b681 | 715 | if (sv_derived_from(ST(0), "version") && SvROK(ST(0))) { |
f941e658 JP |
716 | SV * const lobj = ST(0); |
717 | if ( hv_exists(MUTABLE_HV(SvRV(lobj)), "qv", 2 ) ) | |
718 | XSRETURN_YES; | |
719 | else | |
720 | XSRETURN_NO; | |
137d6fc0 JP |
721 | PUTBACK; |
722 | return; | |
723 | } | |
f941e658 JP |
724 | else |
725 | Perl_croak(aTHX_ "lobj is not of type version"); | |
137d6fc0 JP |
726 | } |
727 | ||
8800c35a JH |
728 | XS(XS_utf8_is_utf8) |
729 | { | |
97aff369 | 730 | dVAR; |
41be1fbd JH |
731 | dXSARGS; |
732 | if (items != 1) | |
afa74d42 | 733 | croak_xs_usage(cv, "sv"); |
c4420975 | 734 | else { |
76f73021 | 735 | SV * const sv = ST(0); |
736 | SvGETMAGIC(sv); | |
c4420975 AL |
737 | if (SvUTF8(sv)) |
738 | XSRETURN_YES; | |
739 | else | |
740 | XSRETURN_NO; | |
41be1fbd JH |
741 | } |
742 | XSRETURN_EMPTY; | |
8800c35a JH |
743 | } |
744 | ||
1b026014 NIS |
745 | XS(XS_utf8_valid) |
746 | { | |
97aff369 | 747 | dVAR; |
41be1fbd JH |
748 | dXSARGS; |
749 | if (items != 1) | |
afa74d42 | 750 | croak_xs_usage(cv, "sv"); |
c4420975 AL |
751 | else { |
752 | SV * const sv = ST(0); | |
753 | STRLEN len; | |
754 | const char * const s = SvPV_const(sv,len); | |
755 | if (!SvUTF8(sv) || is_utf8_string((const U8*)s,len)) | |
756 | XSRETURN_YES; | |
757 | else | |
758 | XSRETURN_NO; | |
759 | } | |
41be1fbd | 760 | XSRETURN_EMPTY; |
1b026014 NIS |
761 | } |
762 | ||
763 | XS(XS_utf8_encode) | |
764 | { | |
97aff369 | 765 | dVAR; |
1b026014 NIS |
766 | dXSARGS; |
767 | if (items != 1) | |
afa74d42 | 768 | croak_xs_usage(cv, "sv"); |
c4420975 | 769 | sv_utf8_encode(ST(0)); |
1b026014 NIS |
770 | XSRETURN_EMPTY; |
771 | } | |
772 | ||
773 | XS(XS_utf8_decode) | |
774 | { | |
97aff369 | 775 | dVAR; |
1b026014 NIS |
776 | dXSARGS; |
777 | if (items != 1) | |
afa74d42 | 778 | croak_xs_usage(cv, "sv"); |
c4420975 AL |
779 | else { |
780 | SV * const sv = ST(0); | |
b2b7346b FC |
781 | bool RETVAL; |
782 | if (SvIsCOW(sv)) sv_force_normal(sv); | |
783 | RETVAL = sv_utf8_decode(sv); | |
1b026014 | 784 | ST(0) = boolSV(RETVAL); |
1b026014 NIS |
785 | } |
786 | XSRETURN(1); | |
787 | } | |
788 | ||
789 | XS(XS_utf8_upgrade) | |
790 | { | |
97aff369 | 791 | dVAR; |
1b026014 NIS |
792 | dXSARGS; |
793 | if (items != 1) | |
afa74d42 | 794 | croak_xs_usage(cv, "sv"); |
c4420975 AL |
795 | else { |
796 | SV * const sv = ST(0); | |
1b026014 NIS |
797 | STRLEN RETVAL; |
798 | dXSTARG; | |
799 | ||
800 | RETVAL = sv_utf8_upgrade(sv); | |
801 | XSprePUSH; PUSHi((IV)RETVAL); | |
802 | } | |
803 | XSRETURN(1); | |
804 | } | |
805 | ||
806 | XS(XS_utf8_downgrade) | |
807 | { | |
97aff369 | 808 | dVAR; |
1b026014 NIS |
809 | dXSARGS; |
810 | if (items < 1 || items > 2) | |
afa74d42 | 811 | croak_xs_usage(cv, "sv, failok=0"); |
c4420975 AL |
812 | else { |
813 | SV * const sv = ST(0); | |
6867be6d AL |
814 | const bool failok = (items < 2) ? 0 : (int)SvIV(ST(1)); |
815 | const bool RETVAL = sv_utf8_downgrade(sv, failok); | |
1b026014 | 816 | |
1b026014 | 817 | ST(0) = boolSV(RETVAL); |
1b026014 NIS |
818 | } |
819 | XSRETURN(1); | |
820 | } | |
821 | ||
822 | XS(XS_utf8_native_to_unicode) | |
823 | { | |
97aff369 | 824 | dVAR; |
1b026014 | 825 | dXSARGS; |
6867be6d | 826 | const UV uv = SvUV(ST(0)); |
b7953727 JH |
827 | |
828 | if (items > 1) | |
afa74d42 | 829 | croak_xs_usage(cv, "sv"); |
b7953727 | 830 | |
1b026014 NIS |
831 | ST(0) = sv_2mortal(newSViv(NATIVE_TO_UNI(uv))); |
832 | XSRETURN(1); | |
833 | } | |
834 | ||
835 | XS(XS_utf8_unicode_to_native) | |
836 | { | |
97aff369 | 837 | dVAR; |
1b026014 | 838 | dXSARGS; |
6867be6d | 839 | const UV uv = SvUV(ST(0)); |
b7953727 JH |
840 | |
841 | if (items > 1) | |
afa74d42 | 842 | croak_xs_usage(cv, "sv"); |
b7953727 | 843 | |
1b026014 NIS |
844 | ST(0) = sv_2mortal(newSViv(UNI_TO_NATIVE(uv))); |
845 | XSRETURN(1); | |
846 | } | |
847 | ||
14a976d6 | 848 | XS(XS_Internals_SvREADONLY) /* This is dangerous stuff. */ |
29569577 | 849 | { |
97aff369 | 850 | dVAR; |
29569577 | 851 | dXSARGS; |
80b6a949 AB |
852 | SV * const svz = ST(0); |
853 | SV * sv; | |
58c0efa5 | 854 | PERL_UNUSED_ARG(cv); |
6867be6d | 855 | |
80b6a949 AB |
856 | /* [perl #77776] - called as &foo() not foo() */ |
857 | if (!SvROK(svz)) | |
858 | croak_xs_usage(cv, "SCALAR[, ON]"); | |
859 | ||
860 | sv = SvRV(svz); | |
861 | ||
29569577 | 862 | if (items == 1) { |
3e89ba19 | 863 | if (SvREADONLY(sv) && !SvIsCOW(sv)) |
29569577 JH |
864 | XSRETURN_YES; |
865 | else | |
866 | XSRETURN_NO; | |
867 | } | |
868 | else if (items == 2) { | |
869 | if (SvTRUE(ST(1))) { | |
3e89ba19 | 870 | if (SvIsCOW(sv)) sv_force_normal(sv); |
29569577 JH |
871 | SvREADONLY_on(sv); |
872 | XSRETURN_YES; | |
873 | } | |
874 | else { | |
14a976d6 | 875 | /* I hope you really know what you are doing. */ |
3e89ba19 | 876 | if (!SvIsCOW(sv)) SvREADONLY_off(sv); |
29569577 JH |
877 | XSRETURN_NO; |
878 | } | |
879 | } | |
14a976d6 | 880 | XSRETURN_UNDEF; /* Can't happen. */ |
29569577 JH |
881 | } |
882 | ||
14a976d6 | 883 | XS(XS_Internals_SvREFCNT) /* This is dangerous stuff. */ |
29569577 | 884 | { |
97aff369 | 885 | dVAR; |
29569577 | 886 | dXSARGS; |
80b6a949 AB |
887 | SV * const svz = ST(0); |
888 | SV * sv; | |
58c0efa5 | 889 | PERL_UNUSED_ARG(cv); |
6867be6d | 890 | |
80b6a949 AB |
891 | /* [perl #77776] - called as &foo() not foo() */ |
892 | if (!SvROK(svz)) | |
893 | croak_xs_usage(cv, "SCALAR[, REFCOUNT]"); | |
894 | ||
895 | sv = SvRV(svz); | |
896 | ||
29569577 | 897 | if (items == 1) |
14a976d6 | 898 | XSRETURN_IV(SvREFCNT(sv) - 1); /* Minus the ref created for us. */ |
29569577 | 899 | else if (items == 2) { |
14a976d6 | 900 | /* I hope you really know what you are doing. */ |
29569577 JH |
901 | SvREFCNT(sv) = SvIV(ST(1)); |
902 | XSRETURN_IV(SvREFCNT(sv)); | |
903 | } | |
14a976d6 | 904 | XSRETURN_UNDEF; /* Can't happen. */ |
29569577 JH |
905 | } |
906 | ||
f044d0d1 | 907 | XS(XS_Internals_hv_clear_placehold) |
dfd4ef2f | 908 | { |
97aff369 | 909 | dVAR; |
dfd4ef2f | 910 | dXSARGS; |
6867be6d | 911 | |
80b6a949 | 912 | if (items != 1 || !SvROK(ST(0))) |
afa74d42 | 913 | croak_xs_usage(cv, "hv"); |
c4420975 | 914 | else { |
ef8f7699 | 915 | HV * const hv = MUTABLE_HV(SvRV(ST(0))); |
c4420975 AL |
916 | hv_clear_placeholders(hv); |
917 | XSRETURN(0); | |
918 | } | |
dfd4ef2f | 919 | } |
39f7a870 JH |
920 | |
921 | XS(XS_PerlIO_get_layers) | |
922 | { | |
97aff369 | 923 | dVAR; |
39f7a870 JH |
924 | dXSARGS; |
925 | if (items < 1 || items % 2 == 0) | |
afa74d42 | 926 | croak_xs_usage(cv, "filehandle[,args]"); |
5fef3b4a | 927 | #ifdef USE_PERLIO |
39f7a870 JH |
928 | { |
929 | SV * sv; | |
930 | GV * gv; | |
931 | IO * io; | |
932 | bool input = TRUE; | |
933 | bool details = FALSE; | |
934 | ||
935 | if (items > 1) { | |
c4420975 | 936 | SV * const *svp; |
39f7a870 | 937 | for (svp = MARK + 2; svp <= SP; svp += 2) { |
c4420975 AL |
938 | SV * const * const varp = svp; |
939 | SV * const * const valp = svp + 1; | |
39f7a870 | 940 | STRLEN klen; |
c4420975 | 941 | const char * const key = SvPV_const(*varp, klen); |
39f7a870 JH |
942 | |
943 | switch (*key) { | |
944 | case 'i': | |
945 | if (klen == 5 && memEQ(key, "input", 5)) { | |
946 | input = SvTRUE(*valp); | |
947 | break; | |
948 | } | |
949 | goto fail; | |
950 | case 'o': | |
951 | if (klen == 6 && memEQ(key, "output", 6)) { | |
952 | input = !SvTRUE(*valp); | |
953 | break; | |
954 | } | |
955 | goto fail; | |
956 | case 'd': | |
957 | if (klen == 7 && memEQ(key, "details", 7)) { | |
958 | details = SvTRUE(*valp); | |
959 | break; | |
960 | } | |
961 | goto fail; | |
962 | default: | |
963 | fail: | |
964 | Perl_croak(aTHX_ | |
965 | "get_layers: unknown argument '%s'", | |
966 | key); | |
967 | } | |
968 | } | |
969 | ||
970 | SP -= (items - 1); | |
971 | } | |
972 | ||
973 | sv = POPs; | |
159b6efe | 974 | gv = MUTABLE_GV(sv); |
39f7a870 JH |
975 | |
976 | if (!isGV(sv)) { | |
977 | if (SvROK(sv) && isGV(SvRV(sv))) | |
159b6efe | 978 | gv = MUTABLE_GV(SvRV(sv)); |
671d49be | 979 | else if (SvPOKp(sv)) |
f776e3cd | 980 | gv = gv_fetchsv(sv, 0, SVt_PVIO); |
39f7a870 JH |
981 | } |
982 | ||
983 | if (gv && (io = GvIO(gv))) { | |
c4420975 | 984 | AV* const av = PerlIO_get_layers(aTHX_ input ? |
39f7a870 JH |
985 | IoIFP(io) : IoOFP(io)); |
986 | I32 i; | |
c4420975 | 987 | const I32 last = av_len(av); |
39f7a870 JH |
988 | I32 nitem = 0; |
989 | ||
990 | for (i = last; i >= 0; i -= 3) { | |
c4420975 AL |
991 | SV * const * const namsvp = av_fetch(av, i - 2, FALSE); |
992 | SV * const * const argsvp = av_fetch(av, i - 1, FALSE); | |
993 | SV * const * const flgsvp = av_fetch(av, i, FALSE); | |
39f7a870 | 994 | |
c4420975 AL |
995 | const bool namok = namsvp && *namsvp && SvPOK(*namsvp); |
996 | const bool argok = argsvp && *argsvp && SvPOK(*argsvp); | |
997 | const bool flgok = flgsvp && *flgsvp && SvIOK(*flgsvp); | |
39f7a870 JH |
998 | |
999 | if (details) { | |
92e45a3e NC |
1000 | /* Indents of 5? Yuck. */ |
1001 | /* We know that PerlIO_get_layers creates a new SV for | |
1002 | the name and flags, so we can just take a reference | |
1003 | and "steal" it when we free the AV below. */ | |
ec3bab8e | 1004 | XPUSHs(namok |
92e45a3e | 1005 | ? sv_2mortal(SvREFCNT_inc_simple_NN(*namsvp)) |
ec3bab8e NC |
1006 | : &PL_sv_undef); |
1007 | XPUSHs(argok | |
92e45a3e NC |
1008 | ? newSVpvn_flags(SvPVX_const(*argsvp), |
1009 | SvCUR(*argsvp), | |
1010 | (SvUTF8(*argsvp) ? SVf_UTF8 : 0) | |
1011 | | SVs_TEMP) | |
1012 | : &PL_sv_undef); | |
96ccaf53 | 1013 | XPUSHs(flgok |
92e45a3e | 1014 | ? sv_2mortal(SvREFCNT_inc_simple_NN(*flgsvp)) |
ec3bab8e | 1015 | : &PL_sv_undef); |
39f7a870 JH |
1016 | nitem += 3; |
1017 | } | |
1018 | else { | |
1019 | if (namok && argok) | |
1eb9e81d | 1020 | XPUSHs(sv_2mortal(Perl_newSVpvf(aTHX_ "%"SVf"(%"SVf")", |
be2597df | 1021 | SVfARG(*namsvp), |
1eb9e81d | 1022 | SVfARG(*argsvp)))); |
39f7a870 | 1023 | else if (namok) |
92e45a3e | 1024 | XPUSHs(sv_2mortal(SvREFCNT_inc_simple_NN(*namsvp))); |
39f7a870 JH |
1025 | else |
1026 | XPUSHs(&PL_sv_undef); | |
1027 | nitem++; | |
1028 | if (flgok) { | |
c4420975 | 1029 | const IV flags = SvIVX(*flgsvp); |
39f7a870 JH |
1030 | |
1031 | if (flags & PERLIO_F_UTF8) { | |
84bafc02 | 1032 | XPUSHs(newSVpvs_flags("utf8", SVs_TEMP)); |
39f7a870 JH |
1033 | nitem++; |
1034 | } | |
1035 | } | |
1036 | } | |
1037 | } | |
1038 | ||
1039 | SvREFCNT_dec(av); | |
1040 | ||
1041 | XSRETURN(nitem); | |
1042 | } | |
1043 | } | |
5fef3b4a | 1044 | #endif |
39f7a870 JH |
1045 | |
1046 | XSRETURN(0); | |
1047 | } | |
1048 | ||
9a7034eb | 1049 | XS(XS_Internals_hash_seed) |
c910b28a | 1050 | { |
97aff369 | 1051 | dVAR; |
c85d3f85 NC |
1052 | /* Using dXSARGS would also have dITEM and dSP, |
1053 | * which define 2 unused local variables. */ | |
557b887a | 1054 | dAXMARK; |
53c1dcc0 | 1055 | PERL_UNUSED_ARG(cv); |
ad73156c | 1056 | PERL_UNUSED_VAR(mark); |
81eaca17 | 1057 | XSRETURN_UV(PERL_HASH_SEED); |
c910b28a JH |
1058 | } |
1059 | ||
008fb0c0 | 1060 | XS(XS_Internals_rehash_seed) |
8e90d776 | 1061 | { |
97aff369 | 1062 | dVAR; |
8e90d776 NC |
1063 | /* Using dXSARGS would also have dITEM and dSP, |
1064 | * which define 2 unused local variables. */ | |
557b887a | 1065 | dAXMARK; |
53c1dcc0 | 1066 | PERL_UNUSED_ARG(cv); |
ad73156c | 1067 | PERL_UNUSED_VAR(mark); |
008fb0c0 | 1068 | XSRETURN_UV(PL_rehash_seed); |
8e90d776 NC |
1069 | } |
1070 | ||
05619474 NC |
1071 | XS(XS_Internals_HvREHASH) /* Subject to change */ |
1072 | { | |
97aff369 | 1073 | dVAR; |
05619474 | 1074 | dXSARGS; |
93c51217 | 1075 | PERL_UNUSED_ARG(cv); |
05619474 | 1076 | if (SvROK(ST(0))) { |
ef8f7699 | 1077 | const HV * const hv = (const HV *) SvRV(ST(0)); |
05619474 NC |
1078 | if (items == 1 && SvTYPE(hv) == SVt_PVHV) { |
1079 | if (HvREHASH(hv)) | |
1080 | XSRETURN_YES; | |
1081 | else | |
1082 | XSRETURN_NO; | |
1083 | } | |
1084 | } | |
1085 | Perl_croak(aTHX_ "Internals::HvREHASH $hashref"); | |
1086 | } | |
241d1a3b | 1087 | |
80305961 YO |
1088 | XS(XS_re_is_regexp) |
1089 | { | |
1090 | dVAR; | |
1091 | dXSARGS; | |
f7e71195 AB |
1092 | PERL_UNUSED_VAR(cv); |
1093 | ||
80305961 | 1094 | if (items != 1) |
afa74d42 | 1095 | croak_xs_usage(cv, "sv"); |
f7e71195 | 1096 | |
f7e71195 AB |
1097 | if (SvRXOK(ST(0))) { |
1098 | XSRETURN_YES; | |
1099 | } else { | |
1100 | XSRETURN_NO; | |
80305961 YO |
1101 | } |
1102 | } | |
1103 | ||
192b9cd1 | 1104 | XS(XS_re_regnames_count) |
80305961 | 1105 | { |
192b9cd1 AB |
1106 | REGEXP *rx = PL_curpm ? PM_GETRE(PL_curpm) : NULL; |
1107 | SV * ret; | |
80305961 YO |
1108 | dVAR; |
1109 | dXSARGS; | |
192b9cd1 AB |
1110 | |
1111 | if (items != 0) | |
afa74d42 | 1112 | croak_xs_usage(cv, ""); |
192b9cd1 AB |
1113 | |
1114 | SP -= items; | |
fdae9473 | 1115 | PUTBACK; |
192b9cd1 AB |
1116 | |
1117 | if (!rx) | |
1118 | XSRETURN_UNDEF; | |
1119 | ||
1120 | ret = CALLREG_NAMED_BUFF_COUNT(rx); | |
1121 | ||
1122 | SPAGAIN; | |
fdae9473 NC |
1123 | PUSHs(ret ? sv_2mortal(ret) : &PL_sv_undef); |
1124 | XSRETURN(1); | |
192b9cd1 AB |
1125 | } |
1126 | ||
1127 | XS(XS_re_regname) | |
1128 | { | |
1129 | dVAR; | |
1130 | dXSARGS; | |
1131 | REGEXP * rx; | |
1132 | U32 flags; | |
1133 | SV * ret; | |
1134 | ||
28d8d7f4 | 1135 | if (items < 1 || items > 2) |
afa74d42 | 1136 | croak_xs_usage(cv, "name[, all ]"); |
192b9cd1 | 1137 | |
80305961 | 1138 | SP -= items; |
fdae9473 | 1139 | PUTBACK; |
80305961 | 1140 | |
192b9cd1 AB |
1141 | rx = PL_curpm ? PM_GETRE(PL_curpm) : NULL; |
1142 | ||
1143 | if (!rx) | |
1144 | XSRETURN_UNDEF; | |
1145 | ||
1146 | if (items == 2 && SvTRUE(ST(1))) { | |
f1b875a0 | 1147 | flags = RXapif_ALL; |
192b9cd1 | 1148 | } else { |
f1b875a0 | 1149 | flags = RXapif_ONE; |
80305961 | 1150 | } |
f1b875a0 | 1151 | ret = CALLREG_NAMED_BUFF_FETCH(rx, ST(0), (flags | RXapif_REGNAME)); |
192b9cd1 | 1152 | |
fdae9473 NC |
1153 | SPAGAIN; |
1154 | PUSHs(ret ? sv_2mortal(ret) : &PL_sv_undef); | |
1155 | XSRETURN(1); | |
80305961 YO |
1156 | } |
1157 | ||
192b9cd1 | 1158 | |
80305961 YO |
1159 | XS(XS_re_regnames) |
1160 | { | |
192b9cd1 | 1161 | dVAR; |
80305961 | 1162 | dXSARGS; |
192b9cd1 AB |
1163 | REGEXP * rx; |
1164 | U32 flags; | |
1165 | SV *ret; | |
1166 | AV *av; | |
1167 | I32 length; | |
1168 | I32 i; | |
1169 | SV **entry; | |
1170 | ||
1171 | if (items > 1) | |
afa74d42 | 1172 | croak_xs_usage(cv, "[all]"); |
192b9cd1 AB |
1173 | |
1174 | rx = PL_curpm ? PM_GETRE(PL_curpm) : NULL; | |
1175 | ||
1176 | if (!rx) | |
1177 | XSRETURN_UNDEF; | |
1178 | ||
1179 | if (items == 1 && SvTRUE(ST(0))) { | |
f1b875a0 | 1180 | flags = RXapif_ALL; |
192b9cd1 | 1181 | } else { |
f1b875a0 | 1182 | flags = RXapif_ONE; |
192b9cd1 AB |
1183 | } |
1184 | ||
80305961 | 1185 | SP -= items; |
fdae9473 | 1186 | PUTBACK; |
80305961 | 1187 | |
f1b875a0 | 1188 | ret = CALLREG_NAMED_BUFF_ALL(rx, (flags | RXapif_REGNAMES)); |
192b9cd1 AB |
1189 | |
1190 | SPAGAIN; | |
1191 | ||
192b9cd1 AB |
1192 | if (!ret) |
1193 | XSRETURN_UNDEF; | |
1194 | ||
502c6561 | 1195 | av = MUTABLE_AV(SvRV(ret)); |
192b9cd1 AB |
1196 | length = av_len(av); |
1197 | ||
1198 | for (i = 0; i <= length; i++) { | |
1199 | entry = av_fetch(av, i, FALSE); | |
1200 | ||
1201 | if (!entry) | |
1202 | Perl_croak(aTHX_ "NULL array element in re::regnames()"); | |
1203 | ||
ec83ea38 | 1204 | mXPUSHs(SvREFCNT_inc_simple_NN(*entry)); |
80305961 | 1205 | } |
ec83ea38 MHM |
1206 | |
1207 | SvREFCNT_dec(ret); | |
1208 | ||
192b9cd1 AB |
1209 | PUTBACK; |
1210 | return; | |
80305961 YO |
1211 | } |
1212 | ||
192c1e27 JH |
1213 | XS(XS_re_regexp_pattern) |
1214 | { | |
1215 | dVAR; | |
1216 | dXSARGS; | |
1217 | REGEXP *re; | |
192c1e27 JH |
1218 | |
1219 | if (items != 1) | |
afa74d42 | 1220 | croak_xs_usage(cv, "sv"); |
192c1e27 JH |
1221 | |
1222 | SP -= items; | |
1223 | ||
1224 | /* | |
1225 | Checks if a reference is a regex or not. If the parameter is | |
1226 | not a ref, or is not the result of a qr// then returns false | |
1227 | in scalar context and an empty list in list context. | |
1228 | Otherwise in list context it returns the pattern and the | |
1229 | modifiers, in scalar context it returns the pattern just as it | |
1230 | would if the qr// was stringified normally, regardless as | |
486ec47a | 1231 | to the class of the variable and any stringification overloads |
192c1e27 JH |
1232 | on the object. |
1233 | */ | |
1234 | ||
1235 | if ((re = SvRX(ST(0)))) /* assign deliberate */ | |
1236 | { | |
22c985d5 | 1237 | /* Houston, we have a regex! */ |
192c1e27 | 1238 | SV *pattern; |
192c1e27 JH |
1239 | |
1240 | if ( GIMME_V == G_ARRAY ) { | |
9de15fec | 1241 | STRLEN left = 0; |
a62b1201 | 1242 | char reflags[sizeof(INT_PAT_MODS) + MAX_CHARSET_NAME_LENGTH]; |
69af1167 SH |
1243 | const char *fptr; |
1244 | char ch; | |
1245 | U16 match_flags; | |
1246 | ||
192c1e27 JH |
1247 | /* |
1248 | we are in list context so stringify | |
1249 | the modifiers that apply. We ignore "negative | |
a62b1201 | 1250 | modifiers" in this scenario, and the default character set |
192c1e27 JH |
1251 | */ |
1252 | ||
a62b1201 KW |
1253 | if (get_regex_charset(RX_EXTFLAGS(re)) != REGEX_DEPENDS_CHARSET) { |
1254 | STRLEN len; | |
1255 | const char* const name = get_regex_charset_name(RX_EXTFLAGS(re), | |
1256 | &len); | |
1257 | Copy(name, reflags + left, len, char); | |
1258 | left += len; | |
9de15fec | 1259 | } |
69af1167 | 1260 | fptr = INT_PAT_MODS; |
73134a2e | 1261 | match_flags = (U16)((RX_EXTFLAGS(re) & RXf_PMf_COMPILETIME) |
192c1e27 JH |
1262 | >> RXf_PMf_STD_PMMOD_SHIFT); |
1263 | ||
1264 | while((ch = *fptr++)) { | |
1265 | if(match_flags & 1) { | |
1266 | reflags[left++] = ch; | |
1267 | } | |
1268 | match_flags >>= 1; | |
1269 | } | |
1270 | ||
fb632ce3 NC |
1271 | pattern = newSVpvn_flags(RX_PRECOMP(re),RX_PRELEN(re), |
1272 | (RX_UTF8(re) ? SVf_UTF8 : 0) | SVs_TEMP); | |
192c1e27 JH |
1273 | |
1274 | /* return the pattern and the modifiers */ | |
1275 | XPUSHs(pattern); | |
fb632ce3 | 1276 | XPUSHs(newSVpvn_flags(reflags, left, SVs_TEMP)); |
192c1e27 JH |
1277 | XSRETURN(2); |
1278 | } else { | |
1279 | /* Scalar, so use the string that Perl would return */ | |
1280 | /* return the pattern in (?msix:..) format */ | |
1281 | #if PERL_VERSION >= 11 | |
daba3364 | 1282 | pattern = sv_2mortal(newSVsv(MUTABLE_SV(re))); |
192c1e27 | 1283 | #else |
fb632ce3 NC |
1284 | pattern = newSVpvn_flags(RX_WRAPPED(re), RX_WRAPLEN(re), |
1285 | (RX_UTF8(re) ? SVf_UTF8 : 0) | SVs_TEMP); | |
192c1e27 JH |
1286 | #endif |
1287 | XPUSHs(pattern); | |
1288 | XSRETURN(1); | |
1289 | } | |
1290 | } else { | |
1291 | /* It ain't a regexp folks */ | |
1292 | if ( GIMME_V == G_ARRAY ) { | |
1293 | /* return the empty list */ | |
1294 | XSRETURN_UNDEF; | |
1295 | } else { | |
1296 | /* Because of the (?:..) wrapping involved in a | |
1297 | stringified pattern it is impossible to get a | |
1298 | result for a real regexp that would evaluate to | |
1299 | false. Therefore we can return PL_sv_no to signify | |
1300 | that the object is not a regex, this means that one | |
1301 | can say | |
1302 | ||
1303 | if (regex($might_be_a_regex) eq '(?:foo)') { } | |
1304 | ||
1305 | and not worry about undefined values. | |
1306 | */ | |
1307 | XSRETURN_NO; | |
1308 | } | |
1309 | } | |
1310 | /* NOT-REACHED */ | |
1311 | } | |
1312 | ||
eff5b9d5 NC |
1313 | struct xsub_details { |
1314 | const char *name; | |
1315 | XSUBADDR_t xsub; | |
1316 | const char *proto; | |
1317 | }; | |
1318 | ||
1319 | struct xsub_details details[] = { | |
1320 | {"UNIVERSAL::isa", XS_UNIVERSAL_isa, NULL}, | |
1321 | {"UNIVERSAL::can", XS_UNIVERSAL_can, NULL}, | |
1322 | {"UNIVERSAL::DOES", XS_UNIVERSAL_DOES, NULL}, | |
1323 | {"UNIVERSAL::VERSION", XS_UNIVERSAL_VERSION, NULL}, | |
1324 | {"version::()", XS_version_noop, NULL}, | |
1325 | {"version::new", XS_version_new, NULL}, | |
1326 | {"version::parse", XS_version_new, NULL}, | |
1327 | {"version::(\"\"", XS_version_stringify, NULL}, | |
1328 | {"version::stringify", XS_version_stringify, NULL}, | |
1329 | {"version::(0+", XS_version_numify, NULL}, | |
1330 | {"version::numify", XS_version_numify, NULL}, | |
1331 | {"version::normal", XS_version_normal, NULL}, | |
1332 | {"version::(cmp", XS_version_vcmp, NULL}, | |
1333 | {"version::(<=>", XS_version_vcmp, NULL}, | |
1334 | {"version::vcmp", XS_version_vcmp, NULL}, | |
1335 | {"version::(bool", XS_version_boolean, NULL}, | |
1336 | {"version::boolean", XS_version_boolean, NULL}, | |
1337 | {"version::(nomethod", XS_version_noop, NULL}, | |
1338 | {"version::noop", XS_version_noop, NULL}, | |
1339 | {"version::is_alpha", XS_version_is_alpha, NULL}, | |
1340 | {"version::qv", XS_version_qv, NULL}, | |
1341 | {"version::declare", XS_version_qv, NULL}, | |
1342 | {"version::is_qv", XS_version_is_qv, NULL}, | |
1343 | {"utf8::is_utf8", XS_utf8_is_utf8, NULL}, | |
1344 | {"utf8::valid", XS_utf8_valid, NULL}, | |
1345 | {"utf8::encode", XS_utf8_encode, NULL}, | |
1346 | {"utf8::decode", XS_utf8_decode, NULL}, | |
1347 | {"utf8::upgrade", XS_utf8_upgrade, NULL}, | |
1348 | {"utf8::downgrade", XS_utf8_downgrade, NULL}, | |
1349 | {"utf8::native_to_unicode", XS_utf8_native_to_unicode, NULL}, | |
1350 | {"utf8::unicode_to_native", XS_utf8_unicode_to_native, NULL}, | |
1351 | {"Internals::SvREADONLY", XS_Internals_SvREADONLY, "\\[$%@];$"}, | |
1352 | {"Internals::SvREFCNT", XS_Internals_SvREFCNT, "\\[$%@];$"}, | |
1353 | {"Internals::hv_clear_placeholders", XS_Internals_hv_clear_placehold, "\\%"}, | |
1354 | {"PerlIO::get_layers", XS_PerlIO_get_layers, "*;@"}, | |
1355 | {"Internals::hash_seed", XS_Internals_hash_seed, ""}, | |
1356 | {"Internals::rehash_seed", XS_Internals_rehash_seed, ""}, | |
1357 | {"Internals::HvREHASH", XS_Internals_HvREHASH, "\\%"}, | |
1358 | {"re::is_regexp", XS_re_is_regexp, "$"}, | |
1359 | {"re::regname", XS_re_regname, ";$$"}, | |
1360 | {"re::regnames", XS_re_regnames, ";$"}, | |
1361 | {"re::regnames_count", XS_re_regnames_count, ""}, | |
1362 | {"re::regexp_pattern", XS_re_regexp_pattern, "$"}, | |
eff5b9d5 NC |
1363 | }; |
1364 | ||
1365 | void | |
1366 | Perl_boot_core_UNIVERSAL(pTHX) | |
1367 | { | |
1368 | dVAR; | |
1369 | static const char file[] = __FILE__; | |
1370 | struct xsub_details *xsub = details; | |
1371 | const struct xsub_details *end | |
1372 | = details + sizeof(details) / sizeof(details[0]); | |
1373 | ||
1374 | do { | |
1375 | newXS_flags(xsub->name, xsub->xsub, file, xsub->proto, 0); | |
1376 | } while (++xsub < end); | |
1377 | ||
1378 | /* register the overloading (type 'A') magic */ | |
1379 | PL_amagic_generation++; | |
1380 | ||
1381 | /* Providing a Regexp::DESTROY fixes #21347. See test in t/op/ref.t */ | |
bad4ae38 FC |
1382 | { |
1383 | CV * const cv = | |
1384 | newCONSTSUB(get_hv("Regexp::", GV_ADD), "DESTROY", NULL); | |
1385 | Safefree(CvFILE(cv)); | |
1386 | CvFILE(cv) = (char *)file; | |
1387 | CvDYNFILE_off(cv); | |
1388 | } | |
eff5b9d5 | 1389 | } |
80305961 | 1390 | |
241d1a3b NC |
1391 | /* |
1392 | * Local variables: | |
1393 | * c-indentation-style: bsd | |
1394 | * c-basic-offset: 4 | |
1395 | * indent-tabs-mode: t | |
1396 | * End: | |
1397 | * | |
37442d52 RGS |
1398 | * ex: set ts=8 sts=4 sw=4 noet: |
1399 | */ |