Commit | Line | Data |
---|---|---|
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 | 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 |
515a4f72 | 42 | S_isa_lookup(pTHX_ HV *stash, const char * const name) |
6d4a7be2 | 43 | { |
97aff369 | 44 | dVAR; |
a49ba3fc | 45 | const struct mro_meta *const meta = HvMROMETA(stash); |
4340b386 | 46 | HV *isa = meta->isa; |
a49ba3fc NC |
47 | STRLEN len = strlen(name); |
48 | const HV *our_stash; | |
6d4a7be2 | 49 | |
7918f24d NC |
50 | PERL_ARGS_ASSERT_ISA_LOOKUP; |
51 | ||
4340b386 FC |
52 | if (!isa) { |
53 | (void)mro_get_linear_isa(stash); | |
54 | isa = meta->isa; | |
55 | } | |
56 | ||
a49ba3fc NC |
57 | if (hv_common(isa, NULL, name, len, 0 /* No "UTF-8" flag possible with only |
58 | a char * argument*/, | |
59 | HV_FETCH_ISEXISTS, NULL, 0)) { | |
60 | /* Direct name lookup worked. */ | |
a9ec700e | 61 | return TRUE; |
a49ba3fc | 62 | } |
6d4a7be2 | 63 | |
a49ba3fc | 64 | /* A stash/class can go by many names (ie. User == main::User), so |
81a5123c FC |
65 | we use the HvENAME in the stash itself, which is canonical, falling |
66 | back to HvNAME if necessary. */ | |
a49ba3fc NC |
67 | our_stash = gv_stashpvn(name, len, 0); |
68 | ||
69 | if (our_stash) { | |
81a5123c FC |
70 | HEK *canon_name = HvENAME_HEK(our_stash); |
71 | if (!canon_name) canon_name = HvNAME_HEK(our_stash); | |
a1d407e8 | 72 | |
a49ba3fc NC |
73 | if (hv_common(isa, NULL, HEK_KEY(canon_name), HEK_LEN(canon_name), |
74 | HEK_FLAGS(canon_name), | |
75 | HV_FETCH_ISEXISTS, NULL, HEK_HASH(canon_name))) { | |
e1a479c5 | 76 | return TRUE; |
a49ba3fc | 77 | } |
6d4a7be2 | 78 | } |
79 | ||
a9ec700e | 80 | return FALSE; |
6d4a7be2 | 81 | } |
82 | ||
954c1994 | 83 | /* |
ccfc67b7 JH |
84 | =head1 SV Manipulation Functions |
85 | ||
954c1994 GS |
86 | =for apidoc sv_derived_from |
87 | ||
6885da0e | 88 | Returns a boolean indicating whether the SV is derived from the specified class |
89 | I<at the C level>. To check derivation at the Perl level, call C<isa()> as a | |
90 | normal Perl method. | |
954c1994 GS |
91 | |
92 | =cut | |
93 | */ | |
94 | ||
55497cff | 95 | bool |
15f169a1 | 96 | Perl_sv_derived_from(pTHX_ SV *sv, const char *const name) |
55497cff | 97 | { |
97aff369 | 98 | dVAR; |
0b6f4f5c | 99 | HV *stash; |
46e4b22b | 100 | |
7918f24d NC |
101 | PERL_ARGS_ASSERT_SV_DERIVED_FROM; |
102 | ||
5b295bef | 103 | SvGETMAGIC(sv); |
55497cff | 104 | |
105 | if (SvROK(sv)) { | |
0b6f4f5c | 106 | const char *type; |
55497cff | 107 | sv = SvRV(sv); |
108 | type = sv_reftype(sv,0); | |
0b6f4f5c AL |
109 | if (type && strEQ(type,name)) |
110 | return TRUE; | |
111 | stash = SvOBJECT(sv) ? SvSTASH(sv) : NULL; | |
55497cff | 112 | } |
113 | else { | |
da51bb9b | 114 | stash = gv_stashsv(sv, 0); |
55497cff | 115 | } |
46e4b22b | 116 | |
4a9e32d8 | 117 | return stash ? isa_lookup(stash, name) : FALSE; |
55497cff | 118 | } |
119 | ||
cbc021f9 | 120 | /* |
121 | =for apidoc sv_does | |
122 | ||
123 | Returns a boolean indicating whether the SV performs a specific, named role. | |
124 | The SV can be a Perl object or the name of a Perl class. | |
125 | ||
126 | =cut | |
127 | */ | |
128 | ||
1b026014 NIS |
129 | #include "XSUB.h" |
130 | ||
cbc021f9 | 131 | bool |
15f169a1 | 132 | Perl_sv_does(pTHX_ SV *sv, const char *const name) |
cbc021f9 | 133 | { |
134 | const char *classname; | |
135 | bool does_it; | |
59e7186f | 136 | SV *methodname; |
cbc021f9 | 137 | dSP; |
7918f24d NC |
138 | |
139 | PERL_ARGS_ASSERT_SV_DOES; | |
140 | ||
cbc021f9 | 141 | ENTER; |
142 | SAVETMPS; | |
143 | ||
144 | SvGETMAGIC(sv); | |
145 | ||
146 | if (!SvOK(sv) || !(SvROK(sv) || (SvPOK(sv) && SvCUR(sv)) | |
7ce46f2a GG |
147 | || (SvGMAGICAL(sv) && SvPOKp(sv) && SvCUR(sv)))) { |
148 | LEAVE; | |
cbc021f9 | 149 | return FALSE; |
7ce46f2a | 150 | } |
cbc021f9 | 151 | |
152 | if (sv_isobject(sv)) { | |
153 | classname = sv_reftype(SvRV(sv),TRUE); | |
154 | } else { | |
94707740 | 155 | classname = SvPV_nolen(sv); |
cbc021f9 | 156 | } |
157 | ||
7ce46f2a GG |
158 | if (strEQ(name,classname)) { |
159 | LEAVE; | |
cbc021f9 | 160 | return TRUE; |
7ce46f2a | 161 | } |
cbc021f9 | 162 | |
163 | PUSHMARK(SP); | |
164 | XPUSHs(sv); | |
6e449a3a | 165 | mXPUSHs(newSVpv(name, 0)); |
cbc021f9 | 166 | PUTBACK; |
167 | ||
84bafc02 | 168 | methodname = newSVpvs_flags("isa", SVs_TEMP); |
59e7186f RGS |
169 | /* ugly hack: use the SvSCREAM flag so S_method_common |
170 | * can figure out we're calling DOES() and not isa(), | |
171 | * and report eventual errors correctly. --rgs */ | |
172 | SvSCREAM_on(methodname); | |
173 | call_sv(methodname, G_SCALAR | G_METHOD); | |
cbc021f9 | 174 | SPAGAIN; |
175 | ||
176 | does_it = SvTRUE( TOPs ); | |
177 | FREETMPS; | |
178 | LEAVE; | |
179 | ||
180 | return does_it; | |
181 | } | |
182 | ||
afa74d42 NC |
183 | /* |
184 | =for apidoc croak_xs_usage | |
185 | ||
186 | A specialised variant of C<croak()> for emitting the usage message for xsubs | |
187 | ||
188 | croak_xs_usage(cv, "eee_yow"); | |
189 | ||
190 | works out the package name and subroutine name from C<cv>, and then calls | |
191 | C<croak()>. Hence if C<cv> is C<&ouch::awk>, it would call C<croak> as: | |
192 | ||
1b1ee2ef | 193 | Perl_croak(aTHX_ "Usage: %s::%s(%s)", "ouch" "awk", "eee_yow"); |
afa74d42 NC |
194 | |
195 | =cut | |
196 | */ | |
197 | ||
198 | void | |
199 | Perl_croak_xs_usage(pTHX_ const CV *const cv, const char *const params) | |
200 | { | |
201 | const GV *const gv = CvGV(cv); | |
202 | ||
203 | PERL_ARGS_ASSERT_CROAK_XS_USAGE; | |
204 | ||
205 | if (gv) { | |
206 | const char *const gvname = GvNAME(gv); | |
207 | const HV *const stash = GvSTASH(gv); | |
208 | const char *const hvname = stash ? HvNAME_get(stash) : NULL; | |
209 | ||
210 | if (hvname) | |
211 | Perl_croak(aTHX_ "Usage: %s::%s(%s)", hvname, gvname, params); | |
212 | else | |
213 | Perl_croak(aTHX_ "Usage: %s(%s)", gvname, params); | |
214 | } else { | |
215 | /* Pants. I don't think that it should be possible to get here. */ | |
93c51217 | 216 | Perl_croak(aTHX_ "Usage: CODE(0x%"UVxf")(%s)", PTR2UV(cv), params); |
afa74d42 NC |
217 | } |
218 | } | |
55497cff | 219 | |
6d4a7be2 | 220 | XS(XS_UNIVERSAL_isa) |
221 | { | |
97aff369 | 222 | dVAR; |
6d4a7be2 | 223 | dXSARGS; |
6d4a7be2 | 224 | |
225 | if (items != 2) | |
afa74d42 | 226 | croak_xs_usage(cv, "reference, kind"); |
c4420975 AL |
227 | else { |
228 | SV * const sv = ST(0); | |
229 | const char *name; | |
6d4a7be2 | 230 | |
c4420975 | 231 | SvGETMAGIC(sv); |
d3f7f2b2 | 232 | |
c4420975 AL |
233 | if (!SvOK(sv) || !(SvROK(sv) || (SvPOK(sv) && SvCUR(sv)) |
234 | || (SvGMAGICAL(sv) && SvPOKp(sv) && SvCUR(sv)))) | |
235 | XSRETURN_UNDEF; | |
f8f70380 | 236 | |
c4420975 | 237 | name = SvPV_nolen_const(ST(1)); |
6d4a7be2 | 238 | |
c4420975 AL |
239 | ST(0) = boolSV(sv_derived_from(sv, name)); |
240 | XSRETURN(1); | |
241 | } | |
6d4a7be2 | 242 | } |
243 | ||
6d4a7be2 | 244 | XS(XS_UNIVERSAL_can) |
245 | { | |
97aff369 | 246 | dVAR; |
6d4a7be2 | 247 | dXSARGS; |
248 | SV *sv; | |
6867be6d | 249 | const char *name; |
6d4a7be2 | 250 | SV *rv; |
6f08146e | 251 | HV *pkg = NULL; |
6d4a7be2 | 252 | |
253 | if (items != 2) | |
afa74d42 | 254 | croak_xs_usage(cv, "object-ref, method"); |
6d4a7be2 | 255 | |
256 | sv = ST(0); | |
f8f70380 | 257 | |
5b295bef | 258 | SvGETMAGIC(sv); |
d3f7f2b2 | 259 | |
253ecd6d RGS |
260 | if (!SvOK(sv) || !(SvROK(sv) || (SvPOK(sv) && SvCUR(sv)) |
261 | || (SvGMAGICAL(sv) && SvPOKp(sv) && SvCUR(sv)))) | |
f8f70380 GS |
262 | XSRETURN_UNDEF; |
263 | ||
0510663f | 264 | name = SvPV_nolen_const(ST(1)); |
3280af22 | 265 | rv = &PL_sv_undef; |
6d4a7be2 | 266 | |
46e4b22b | 267 | if (SvROK(sv)) { |
daba3364 | 268 | sv = MUTABLE_SV(SvRV(sv)); |
46e4b22b | 269 | if (SvOBJECT(sv)) |
6f08146e NIS |
270 | pkg = SvSTASH(sv); |
271 | } | |
272 | else { | |
da51bb9b | 273 | pkg = gv_stashsv(sv, 0); |
6f08146e NIS |
274 | } |
275 | ||
276 | if (pkg) { | |
c4420975 | 277 | GV * const gv = gv_fetchmethod_autoload(pkg, name, FALSE); |
dc848c6f | 278 | if (gv && isGV(gv)) |
daba3364 | 279 | rv = sv_2mortal(newRV(MUTABLE_SV(GvCV(gv)))); |
6d4a7be2 | 280 | } |
281 | ||
282 | ST(0) = rv; | |
283 | XSRETURN(1); | |
284 | } | |
285 | ||
cbc021f9 | 286 | XS(XS_UNIVERSAL_DOES) |
287 | { | |
288 | dVAR; | |
289 | dXSARGS; | |
58c0efa5 | 290 | PERL_UNUSED_ARG(cv); |
cbc021f9 | 291 | |
292 | if (items != 2) | |
486ec47a | 293 | Perl_croak(aTHX_ "Usage: invocand->DOES(kind)"); |
cbc021f9 | 294 | else { |
295 | SV * const sv = ST(0); | |
296 | const char *name; | |
297 | ||
298 | name = SvPV_nolen_const(ST(1)); | |
299 | if (sv_does( sv, name )) | |
300 | XSRETURN_YES; | |
301 | ||
302 | XSRETURN_NO; | |
303 | } | |
304 | } | |
305 | ||
6d4a7be2 | 306 | XS(XS_UNIVERSAL_VERSION) |
307 | { | |
97aff369 | 308 | dVAR; |
6d4a7be2 | 309 | dXSARGS; |
310 | HV *pkg; | |
311 | GV **gvp; | |
312 | GV *gv; | |
313 | SV *sv; | |
e1ec3a88 | 314 | const char *undef; |
58c0efa5 | 315 | PERL_UNUSED_ARG(cv); |
6d4a7be2 | 316 | |
1571675a | 317 | if (SvROK(ST(0))) { |
daba3364 | 318 | sv = MUTABLE_SV(SvRV(ST(0))); |
1571675a | 319 | if (!SvOBJECT(sv)) |
cea2e8a9 | 320 | Perl_croak(aTHX_ "Cannot find version of an unblessed reference"); |
6d4a7be2 | 321 | pkg = SvSTASH(sv); |
322 | } | |
323 | else { | |
da51bb9b | 324 | pkg = gv_stashsv(ST(0), 0); |
6d4a7be2 | 325 | } |
326 | ||
4608196e | 327 | gvp = pkg ? (GV**)hv_fetchs(pkg, "VERSION", FALSE) : NULL; |
6d4a7be2 | 328 | |
0008872a | 329 | if (gvp && isGV(gv = *gvp) && (sv = GvSV(gv)) && SvOK(sv)) { |
c4420975 | 330 | SV * const nsv = sv_newmortal(); |
6d4a7be2 | 331 | sv_setsv(nsv, sv); |
332 | sv = nsv; | |
137d6fc0 | 333 | if ( !sv_derived_from(sv, "version")) |
ac0e6a2f | 334 | upg_version(sv, FALSE); |
c445ea15 | 335 | undef = NULL; |
6d4a7be2 | 336 | } |
337 | else { | |
daba3364 | 338 | sv = &PL_sv_undef; |
6d4a7be2 | 339 | undef = "(undef)"; |
340 | } | |
341 | ||
1571675a | 342 | if (items > 1) { |
1571675a GS |
343 | SV *req = ST(1); |
344 | ||
62658f4d | 345 | if (undef) { |
bfcb3514 | 346 | if (pkg) { |
c4420975 | 347 | const char * const name = HvNAME_get(pkg); |
a3b680e6 | 348 | Perl_croak(aTHX_ |
bfcb3514 NC |
349 | "%s does not define $%s::VERSION--version check failed", |
350 | name, name); | |
351 | } else { | |
a3b680e6 AL |
352 | Perl_croak(aTHX_ |
353 | "%s defines neither package nor VERSION--version check failed", | |
0510663f | 354 | SvPVx_nolen_const(ST(0)) ); |
62658f4d PM |
355 | } |
356 | } | |
ad63d80f | 357 | |
137d6fc0 JP |
358 | if ( !sv_derived_from(req, "version")) { |
359 | /* req may very well be R/O, so create a new object */ | |
ac0e6a2f | 360 | req = sv_2mortal( new_version(req) ); |
137d6fc0 | 361 | } |
1571675a | 362 | |
ac0e6a2f | 363 | if ( vcmp( req, sv ) > 0 ) { |
ef8f7699 | 364 | if ( hv_exists(MUTABLE_HV(SvRV(req)), "qv", 2 ) ) { |
ac0e6a2f RGS |
365 | Perl_croak(aTHX_ "%s version %"SVf" required--" |
366 | "this is only version %"SVf"", HvNAME_get(pkg), | |
e3a22e3f GF |
367 | SVfARG(sv_2mortal(vnormal(req))), |
368 | SVfARG(sv_2mortal(vnormal(sv)))); | |
ac0e6a2f RGS |
369 | } else { |
370 | Perl_croak(aTHX_ "%s version %"SVf" required--" | |
371 | "this is only version %"SVf"", HvNAME_get(pkg), | |
e3a22e3f GF |
372 | SVfARG(sv_2mortal(vstringify(req))), |
373 | SVfARG(sv_2mortal(vstringify(sv)))); | |
ac0e6a2f RGS |
374 | } |
375 | } | |
376 | ||
2d8e6c8d | 377 | } |
6d4a7be2 | 378 | |
2b140d5b | 379 | if ( SvOK(sv) && sv_derived_from(sv, "version") ) { |
e3a22e3f | 380 | ST(0) = sv_2mortal(vstringify(sv)); |
13f8f398 JP |
381 | } else { |
382 | ST(0) = sv; | |
b38a9dc5 | 383 | } |
6d4a7be2 | 384 | |
385 | XSRETURN(1); | |
386 | } | |
387 | ||
439cb1c4 JP |
388 | XS(XS_version_new) |
389 | { | |
97aff369 | 390 | dVAR; |
439cb1c4 | 391 | dXSARGS; |
129318bd | 392 | if (items > 3) |
afa74d42 | 393 | croak_xs_usage(cv, "class, version"); |
439cb1c4 JP |
394 | SP -= items; |
395 | { | |
137d6fc0 JP |
396 | SV *vs = ST(1); |
397 | SV *rv; | |
c4420975 AL |
398 | const char * const classname = |
399 | sv_isobject(ST(0)) /* get the class if called as an object method */ | |
400 | ? HvNAME(SvSTASH(SvRV(ST(0)))) | |
401 | : (char *)SvPV_nolen(ST(0)); | |
9137345a | 402 | |
91152fc1 | 403 | if ( items == 1 || ! SvOK(vs) ) { /* no param or explicit undef */ |
92dcf8ce JP |
404 | /* create empty object */ |
405 | vs = sv_newmortal(); | |
be5574c0 | 406 | sv_setpvs(vs, "0"); |
9137345a JP |
407 | } |
408 | else if ( items == 3 ) { | |
409 | vs = sv_newmortal(); | |
cfd0369c | 410 | Perl_sv_setpvf(aTHX_ vs,"v%s",SvPV_nolen_const(ST(2))); |
129318bd | 411 | } |
439cb1c4 | 412 | |
137d6fc0 | 413 | rv = new_version(vs); |
0723351e | 414 | if ( strcmp(classname,"version") != 0 ) /* inherited new() */ |
da51bb9b | 415 | sv_bless(rv, gv_stashpv(classname, GV_ADD)); |
137d6fc0 | 416 | |
6e449a3a | 417 | mPUSHs(rv); |
439cb1c4 JP |
418 | PUTBACK; |
419 | return; | |
420 | } | |
421 | } | |
422 | ||
423 | XS(XS_version_stringify) | |
424 | { | |
97aff369 | 425 | dVAR; |
41be1fbd JH |
426 | dXSARGS; |
427 | if (items < 1) | |
afa74d42 | 428 | croak_xs_usage(cv, "lobj, ..."); |
41be1fbd JH |
429 | SP -= items; |
430 | { | |
d808b681 | 431 | SV * lobj = ST(0); |
41be1fbd | 432 | |
d808b681 JP |
433 | if (sv_derived_from(lobj, "version") && SvROK(lobj)) { |
434 | lobj = SvRV(lobj); | |
41be1fbd JH |
435 | } |
436 | else | |
437 | Perl_croak(aTHX_ "lobj is not of type version"); | |
438 | ||
6e449a3a | 439 | mPUSHs(vstringify(lobj)); |
41be1fbd JH |
440 | |
441 | PUTBACK; | |
442 | return; | |
443 | } | |
439cb1c4 JP |
444 | } |
445 | ||
446 | XS(XS_version_numify) | |
447 | { | |
97aff369 | 448 | dVAR; |
41be1fbd JH |
449 | dXSARGS; |
450 | if (items < 1) | |
afa74d42 | 451 | croak_xs_usage(cv, "lobj, ..."); |
41be1fbd JH |
452 | SP -= items; |
453 | { | |
d808b681 | 454 | SV * lobj = ST(0); |
41be1fbd | 455 | |
d808b681 JP |
456 | if (sv_derived_from(lobj, "version") && SvROK(lobj)) { |
457 | lobj = SvRV(lobj); | |
41be1fbd JH |
458 | } |
459 | else | |
460 | Perl_croak(aTHX_ "lobj is not of type version"); | |
461 | ||
6e449a3a | 462 | mPUSHs(vnumify(lobj)); |
41be1fbd JH |
463 | |
464 | PUTBACK; | |
465 | return; | |
466 | } | |
439cb1c4 JP |
467 | } |
468 | ||
9137345a JP |
469 | XS(XS_version_normal) |
470 | { | |
97aff369 | 471 | dVAR; |
9137345a JP |
472 | dXSARGS; |
473 | if (items < 1) | |
afa74d42 | 474 | croak_xs_usage(cv, "lobj, ..."); |
9137345a JP |
475 | SP -= items; |
476 | { | |
d808b681 | 477 | SV * lobj = ST(0); |
9137345a | 478 | |
d808b681 JP |
479 | if (sv_derived_from(lobj, "version") && SvROK(lobj)) { |
480 | lobj = SvRV(lobj); | |
9137345a JP |
481 | } |
482 | else | |
483 | Perl_croak(aTHX_ "lobj is not of type version"); | |
484 | ||
6e449a3a | 485 | mPUSHs(vnormal(lobj)); |
9137345a JP |
486 | |
487 | PUTBACK; | |
488 | return; | |
489 | } | |
490 | } | |
491 | ||
439cb1c4 JP |
492 | XS(XS_version_vcmp) |
493 | { | |
97aff369 | 494 | dVAR; |
41be1fbd JH |
495 | dXSARGS; |
496 | if (items < 1) | |
afa74d42 | 497 | croak_xs_usage(cv, "lobj, ..."); |
41be1fbd JH |
498 | SP -= items; |
499 | { | |
d808b681 | 500 | SV * lobj = ST(0); |
41be1fbd | 501 | |
d808b681 JP |
502 | if (sv_derived_from(lobj, "version") && SvROK(lobj)) { |
503 | lobj = SvRV(lobj); | |
41be1fbd JH |
504 | } |
505 | else | |
506 | Perl_croak(aTHX_ "lobj is not of type version"); | |
507 | ||
508 | { | |
509 | SV *rs; | |
510 | SV *rvs; | |
511 | SV * robj = ST(1); | |
7452cf6a | 512 | const IV swap = (IV)SvIV(ST(2)); |
41be1fbd JH |
513 | |
514 | if ( ! sv_derived_from(robj, "version") ) | |
515 | { | |
e3a22e3f GF |
516 | robj = new_version(SvOK(robj) ? robj : newSVpvs_flags("0", SVs_TEMP)); |
517 | sv_2mortal(robj); | |
41be1fbd JH |
518 | } |
519 | rvs = SvRV(robj); | |
520 | ||
521 | if ( swap ) | |
522 | { | |
523 | rs = newSViv(vcmp(rvs,lobj)); | |
524 | } | |
525 | else | |
526 | { | |
527 | rs = newSViv(vcmp(lobj,rvs)); | |
528 | } | |
529 | ||
6e449a3a | 530 | mPUSHs(rs); |
41be1fbd JH |
531 | } |
532 | ||
533 | PUTBACK; | |
534 | return; | |
535 | } | |
439cb1c4 JP |
536 | } |
537 | ||
538 | XS(XS_version_boolean) | |
539 | { | |
97aff369 JH |
540 | dVAR; |
541 | dXSARGS; | |
542 | if (items < 1) | |
afa74d42 | 543 | croak_xs_usage(cv, "lobj, ..."); |
97aff369 | 544 | SP -= items; |
d808b681 | 545 | if (sv_derived_from(ST(0), "version") && SvROK(ST(0))) { |
c4420975 | 546 | SV * const lobj = SvRV(ST(0)); |
396482e1 | 547 | SV * const rs = newSViv( vcmp(lobj,new_version(newSVpvs("0"))) ); |
6e449a3a | 548 | mPUSHs(rs); |
c4420975 AL |
549 | PUTBACK; |
550 | return; | |
551 | } | |
552 | else | |
553 | Perl_croak(aTHX_ "lobj is not of type version"); | |
439cb1c4 JP |
554 | } |
555 | ||
556 | XS(XS_version_noop) | |
557 | { | |
97aff369 | 558 | dVAR; |
2dfd8427 AL |
559 | dXSARGS; |
560 | if (items < 1) | |
afa74d42 | 561 | croak_xs_usage(cv, "lobj, ..."); |
d808b681 | 562 | if (sv_derived_from(ST(0), "version") && SvROK(ST(0))) |
2dfd8427 AL |
563 | Perl_croak(aTHX_ "operation not supported with version object"); |
564 | else | |
565 | Perl_croak(aTHX_ "lobj is not of type version"); | |
566 | #ifndef HASATTRIBUTE_NORETURN | |
567 | XSRETURN_EMPTY; | |
568 | #endif | |
439cb1c4 JP |
569 | } |
570 | ||
c8d69e4a JP |
571 | XS(XS_version_is_alpha) |
572 | { | |
97aff369 | 573 | dVAR; |
c8d69e4a JP |
574 | dXSARGS; |
575 | if (items != 1) | |
afa74d42 | 576 | croak_xs_usage(cv, "lobj"); |
c8d69e4a | 577 | SP -= items; |
d808b681 | 578 | if (sv_derived_from(ST(0), "version") && SvROK(ST(0))) { |
c4420975 | 579 | SV * const lobj = ST(0); |
ef8f7699 | 580 | if ( hv_exists(MUTABLE_HV(SvRV(lobj)), "alpha", 5 ) ) |
c4420975 AL |
581 | XSRETURN_YES; |
582 | else | |
583 | XSRETURN_NO; | |
c8d69e4a JP |
584 | PUTBACK; |
585 | return; | |
586 | } | |
c4420975 AL |
587 | else |
588 | Perl_croak(aTHX_ "lobj is not of type version"); | |
c8d69e4a JP |
589 | } |
590 | ||
137d6fc0 JP |
591 | XS(XS_version_qv) |
592 | { | |
97aff369 | 593 | dVAR; |
137d6fc0 | 594 | dXSARGS; |
4ed3fda4 | 595 | PERL_UNUSED_ARG(cv); |
137d6fc0 JP |
596 | SP -= items; |
597 | { | |
f941e658 JP |
598 | SV * ver = ST(0); |
599 | SV * rv; | |
600 | const char * classname = ""; | |
91152fc1 | 601 | if ( items == 2 && SvOK(ST(1)) ) { |
f941e658 JP |
602 | /* getting called as object or class method */ |
603 | ver = ST(1); | |
604 | classname = | |
605 | sv_isobject(ST(0)) /* class called as an object method */ | |
606 | ? HvNAME_get(SvSTASH(SvRV(ST(0)))) | |
607 | : (char *)SvPV_nolen(ST(0)); | |
608 | } | |
609 | if ( !SvVOK(ver) ) { /* not already a v-string */ | |
610 | rv = sv_newmortal(); | |
ac0e6a2f RGS |
611 | sv_setsv(rv,ver); /* make a duplicate */ |
612 | upg_version(rv, TRUE); | |
f941e658 JP |
613 | } else { |
614 | rv = sv_2mortal(new_version(ver)); | |
137d6fc0 | 615 | } |
f941e658 JP |
616 | if ( items == 2 && strcmp(classname,"version") ) { /* inherited new() */ |
617 | sv_bless(rv, gv_stashpv(classname, GV_ADD)); | |
137d6fc0 | 618 | } |
f941e658 JP |
619 | PUSHs(rv); |
620 | } | |
621 | PUTBACK; | |
622 | return; | |
623 | } | |
137d6fc0 | 624 | |
f941e658 JP |
625 | XS(XS_version_is_qv) |
626 | { | |
627 | dVAR; | |
628 | dXSARGS; | |
629 | if (items != 1) | |
630 | croak_xs_usage(cv, "lobj"); | |
631 | SP -= items; | |
d808b681 | 632 | if (sv_derived_from(ST(0), "version") && SvROK(ST(0))) { |
f941e658 JP |
633 | SV * const lobj = ST(0); |
634 | if ( hv_exists(MUTABLE_HV(SvRV(lobj)), "qv", 2 ) ) | |
635 | XSRETURN_YES; | |
636 | else | |
637 | XSRETURN_NO; | |
137d6fc0 JP |
638 | PUTBACK; |
639 | return; | |
640 | } | |
f941e658 JP |
641 | else |
642 | Perl_croak(aTHX_ "lobj is not of type version"); | |
137d6fc0 JP |
643 | } |
644 | ||
8800c35a JH |
645 | XS(XS_utf8_is_utf8) |
646 | { | |
97aff369 | 647 | dVAR; |
41be1fbd JH |
648 | dXSARGS; |
649 | if (items != 1) | |
afa74d42 | 650 | croak_xs_usage(cv, "sv"); |
c4420975 | 651 | else { |
76f73021 GF |
652 | SV * const sv = ST(0); |
653 | SvGETMAGIC(sv); | |
c4420975 AL |
654 | if (SvUTF8(sv)) |
655 | XSRETURN_YES; | |
656 | else | |
657 | XSRETURN_NO; | |
41be1fbd JH |
658 | } |
659 | XSRETURN_EMPTY; | |
8800c35a JH |
660 | } |
661 | ||
1b026014 NIS |
662 | XS(XS_utf8_valid) |
663 | { | |
97aff369 | 664 | dVAR; |
41be1fbd JH |
665 | dXSARGS; |
666 | if (items != 1) | |
afa74d42 | 667 | croak_xs_usage(cv, "sv"); |
c4420975 AL |
668 | else { |
669 | SV * const sv = ST(0); | |
670 | STRLEN len; | |
671 | const char * const s = SvPV_const(sv,len); | |
672 | if (!SvUTF8(sv) || is_utf8_string((const U8*)s,len)) | |
673 | XSRETURN_YES; | |
674 | else | |
675 | XSRETURN_NO; | |
676 | } | |
41be1fbd | 677 | XSRETURN_EMPTY; |
1b026014 NIS |
678 | } |
679 | ||
680 | XS(XS_utf8_encode) | |
681 | { | |
97aff369 | 682 | dVAR; |
1b026014 NIS |
683 | dXSARGS; |
684 | if (items != 1) | |
afa74d42 | 685 | croak_xs_usage(cv, "sv"); |
c4420975 | 686 | sv_utf8_encode(ST(0)); |
1b026014 NIS |
687 | XSRETURN_EMPTY; |
688 | } | |
689 | ||
690 | XS(XS_utf8_decode) | |
691 | { | |
97aff369 | 692 | dVAR; |
1b026014 NIS |
693 | dXSARGS; |
694 | if (items != 1) | |
afa74d42 | 695 | croak_xs_usage(cv, "sv"); |
c4420975 AL |
696 | else { |
697 | SV * const sv = ST(0); | |
6867be6d | 698 | const bool RETVAL = sv_utf8_decode(sv); |
1b026014 NIS |
699 | ST(0) = boolSV(RETVAL); |
700 | sv_2mortal(ST(0)); | |
701 | } | |
702 | XSRETURN(1); | |
703 | } | |
704 | ||
705 | XS(XS_utf8_upgrade) | |
706 | { | |
97aff369 | 707 | dVAR; |
1b026014 NIS |
708 | dXSARGS; |
709 | if (items != 1) | |
afa74d42 | 710 | croak_xs_usage(cv, "sv"); |
c4420975 AL |
711 | else { |
712 | SV * const sv = ST(0); | |
1b026014 NIS |
713 | STRLEN RETVAL; |
714 | dXSTARG; | |
715 | ||
716 | RETVAL = sv_utf8_upgrade(sv); | |
717 | XSprePUSH; PUSHi((IV)RETVAL); | |
718 | } | |
719 | XSRETURN(1); | |
720 | } | |
721 | ||
722 | XS(XS_utf8_downgrade) | |
723 | { | |
97aff369 | 724 | dVAR; |
1b026014 NIS |
725 | dXSARGS; |
726 | if (items < 1 || items > 2) | |
afa74d42 | 727 | croak_xs_usage(cv, "sv, failok=0"); |
c4420975 AL |
728 | else { |
729 | SV * const sv = ST(0); | |
6867be6d AL |
730 | const bool failok = (items < 2) ? 0 : (int)SvIV(ST(1)); |
731 | const bool RETVAL = sv_utf8_downgrade(sv, failok); | |
1b026014 | 732 | |
1b026014 NIS |
733 | ST(0) = boolSV(RETVAL); |
734 | sv_2mortal(ST(0)); | |
735 | } | |
736 | XSRETURN(1); | |
737 | } | |
738 | ||
739 | XS(XS_utf8_native_to_unicode) | |
740 | { | |
97aff369 | 741 | dVAR; |
1b026014 | 742 | dXSARGS; |
6867be6d | 743 | const UV uv = SvUV(ST(0)); |
b7953727 JH |
744 | |
745 | if (items > 1) | |
afa74d42 | 746 | croak_xs_usage(cv, "sv"); |
b7953727 | 747 | |
1b026014 NIS |
748 | ST(0) = sv_2mortal(newSViv(NATIVE_TO_UNI(uv))); |
749 | XSRETURN(1); | |
750 | } | |
751 | ||
752 | XS(XS_utf8_unicode_to_native) | |
753 | { | |
97aff369 | 754 | dVAR; |
1b026014 | 755 | dXSARGS; |
6867be6d | 756 | const UV uv = SvUV(ST(0)); |
b7953727 JH |
757 | |
758 | if (items > 1) | |
afa74d42 | 759 | croak_xs_usage(cv, "sv"); |
b7953727 | 760 | |
1b026014 NIS |
761 | ST(0) = sv_2mortal(newSViv(UNI_TO_NATIVE(uv))); |
762 | XSRETURN(1); | |
763 | } | |
764 | ||
14a976d6 | 765 | XS(XS_Internals_SvREADONLY) /* This is dangerous stuff. */ |
29569577 | 766 | { |
97aff369 | 767 | dVAR; |
29569577 | 768 | dXSARGS; |
80b6a949 AB |
769 | SV * const svz = ST(0); |
770 | SV * sv; | |
58c0efa5 | 771 | PERL_UNUSED_ARG(cv); |
6867be6d | 772 | |
80b6a949 AB |
773 | /* [perl #77776] - called as &foo() not foo() */ |
774 | if (!SvROK(svz)) | |
775 | croak_xs_usage(cv, "SCALAR[, ON]"); | |
776 | ||
777 | sv = SvRV(svz); | |
778 | ||
29569577 JH |
779 | if (items == 1) { |
780 | if (SvREADONLY(sv)) | |
781 | XSRETURN_YES; | |
782 | else | |
783 | XSRETURN_NO; | |
784 | } | |
785 | else if (items == 2) { | |
786 | if (SvTRUE(ST(1))) { | |
787 | SvREADONLY_on(sv); | |
788 | XSRETURN_YES; | |
789 | } | |
790 | else { | |
14a976d6 | 791 | /* I hope you really know what you are doing. */ |
29569577 JH |
792 | SvREADONLY_off(sv); |
793 | XSRETURN_NO; | |
794 | } | |
795 | } | |
14a976d6 | 796 | XSRETURN_UNDEF; /* Can't happen. */ |
29569577 JH |
797 | } |
798 | ||
14a976d6 | 799 | XS(XS_Internals_SvREFCNT) /* This is dangerous stuff. */ |
29569577 | 800 | { |
97aff369 | 801 | dVAR; |
29569577 | 802 | dXSARGS; |
80b6a949 AB |
803 | SV * const svz = ST(0); |
804 | SV * sv; | |
58c0efa5 | 805 | PERL_UNUSED_ARG(cv); |
6867be6d | 806 | |
80b6a949 AB |
807 | /* [perl #77776] - called as &foo() not foo() */ |
808 | if (!SvROK(svz)) | |
809 | croak_xs_usage(cv, "SCALAR[, REFCOUNT]"); | |
810 | ||
811 | sv = SvRV(svz); | |
812 | ||
29569577 | 813 | if (items == 1) |
14a976d6 | 814 | XSRETURN_IV(SvREFCNT(sv) - 1); /* Minus the ref created for us. */ |
29569577 | 815 | else if (items == 2) { |
14a976d6 | 816 | /* I hope you really know what you are doing. */ |
29569577 JH |
817 | SvREFCNT(sv) = SvIV(ST(1)); |
818 | XSRETURN_IV(SvREFCNT(sv)); | |
819 | } | |
14a976d6 | 820 | XSRETURN_UNDEF; /* Can't happen. */ |
29569577 JH |
821 | } |
822 | ||
f044d0d1 | 823 | XS(XS_Internals_hv_clear_placehold) |
dfd4ef2f | 824 | { |
97aff369 | 825 | dVAR; |
dfd4ef2f | 826 | dXSARGS; |
6867be6d | 827 | |
80b6a949 | 828 | if (items != 1 || !SvROK(ST(0))) |
afa74d42 | 829 | croak_xs_usage(cv, "hv"); |
c4420975 | 830 | else { |
ef8f7699 | 831 | HV * const hv = MUTABLE_HV(SvRV(ST(0))); |
c4420975 AL |
832 | hv_clear_placeholders(hv); |
833 | XSRETURN(0); | |
834 | } | |
dfd4ef2f | 835 | } |
39f7a870 JH |
836 | |
837 | XS(XS_PerlIO_get_layers) | |
838 | { | |
97aff369 | 839 | dVAR; |
39f7a870 JH |
840 | dXSARGS; |
841 | if (items < 1 || items % 2 == 0) | |
afa74d42 | 842 | croak_xs_usage(cv, "filehandle[,args]"); |
5fef3b4a | 843 | #ifdef USE_PERLIO |
39f7a870 JH |
844 | { |
845 | SV * sv; | |
846 | GV * gv; | |
847 | IO * io; | |
848 | bool input = TRUE; | |
849 | bool details = FALSE; | |
850 | ||
851 | if (items > 1) { | |
c4420975 | 852 | SV * const *svp; |
39f7a870 | 853 | for (svp = MARK + 2; svp <= SP; svp += 2) { |
c4420975 AL |
854 | SV * const * const varp = svp; |
855 | SV * const * const valp = svp + 1; | |
39f7a870 | 856 | STRLEN klen; |
c4420975 | 857 | const char * const key = SvPV_const(*varp, klen); |
39f7a870 JH |
858 | |
859 | switch (*key) { | |
860 | case 'i': | |
861 | if (klen == 5 && memEQ(key, "input", 5)) { | |
862 | input = SvTRUE(*valp); | |
863 | break; | |
864 | } | |
865 | goto fail; | |
866 | case 'o': | |
867 | if (klen == 6 && memEQ(key, "output", 6)) { | |
868 | input = !SvTRUE(*valp); | |
869 | break; | |
870 | } | |
871 | goto fail; | |
872 | case 'd': | |
873 | if (klen == 7 && memEQ(key, "details", 7)) { | |
874 | details = SvTRUE(*valp); | |
875 | break; | |
876 | } | |
877 | goto fail; | |
878 | default: | |
879 | fail: | |
880 | Perl_croak(aTHX_ | |
881 | "get_layers: unknown argument '%s'", | |
882 | key); | |
883 | } | |
884 | } | |
885 | ||
886 | SP -= (items - 1); | |
887 | } | |
888 | ||
889 | sv = POPs; | |
159b6efe | 890 | gv = MUTABLE_GV(sv); |
39f7a870 JH |
891 | |
892 | if (!isGV(sv)) { | |
893 | if (SvROK(sv) && isGV(SvRV(sv))) | |
159b6efe | 894 | gv = MUTABLE_GV(SvRV(sv)); |
671d49be | 895 | else if (SvPOKp(sv)) |
f776e3cd | 896 | gv = gv_fetchsv(sv, 0, SVt_PVIO); |
39f7a870 JH |
897 | } |
898 | ||
899 | if (gv && (io = GvIO(gv))) { | |
c4420975 | 900 | AV* const av = PerlIO_get_layers(aTHX_ input ? |
39f7a870 JH |
901 | IoIFP(io) : IoOFP(io)); |
902 | I32 i; | |
c4420975 | 903 | const I32 last = av_len(av); |
39f7a870 JH |
904 | I32 nitem = 0; |
905 | ||
906 | for (i = last; i >= 0; i -= 3) { | |
c4420975 AL |
907 | SV * const * const namsvp = av_fetch(av, i - 2, FALSE); |
908 | SV * const * const argsvp = av_fetch(av, i - 1, FALSE); | |
909 | SV * const * const flgsvp = av_fetch(av, i, FALSE); | |
39f7a870 | 910 | |
c4420975 AL |
911 | const bool namok = namsvp && *namsvp && SvPOK(*namsvp); |
912 | const bool argok = argsvp && *argsvp && SvPOK(*argsvp); | |
913 | const bool flgok = flgsvp && *flgsvp && SvIOK(*flgsvp); | |
39f7a870 JH |
914 | |
915 | if (details) { | |
92e45a3e NC |
916 | /* Indents of 5? Yuck. */ |
917 | /* We know that PerlIO_get_layers creates a new SV for | |
918 | the name and flags, so we can just take a reference | |
919 | and "steal" it when we free the AV below. */ | |
ec3bab8e | 920 | XPUSHs(namok |
92e45a3e | 921 | ? sv_2mortal(SvREFCNT_inc_simple_NN(*namsvp)) |
ec3bab8e NC |
922 | : &PL_sv_undef); |
923 | XPUSHs(argok | |
92e45a3e NC |
924 | ? newSVpvn_flags(SvPVX_const(*argsvp), |
925 | SvCUR(*argsvp), | |
926 | (SvUTF8(*argsvp) ? SVf_UTF8 : 0) | |
927 | | SVs_TEMP) | |
928 | : &PL_sv_undef); | |
96ccaf53 | 929 | XPUSHs(flgok |
92e45a3e | 930 | ? sv_2mortal(SvREFCNT_inc_simple_NN(*flgsvp)) |
ec3bab8e | 931 | : &PL_sv_undef); |
39f7a870 JH |
932 | nitem += 3; |
933 | } | |
934 | else { | |
935 | if (namok && argok) | |
1eb9e81d | 936 | XPUSHs(sv_2mortal(Perl_newSVpvf(aTHX_ "%"SVf"(%"SVf")", |
be2597df | 937 | SVfARG(*namsvp), |
1eb9e81d | 938 | SVfARG(*argsvp)))); |
39f7a870 | 939 | else if (namok) |
92e45a3e | 940 | XPUSHs(sv_2mortal(SvREFCNT_inc_simple_NN(*namsvp))); |
39f7a870 JH |
941 | else |
942 | XPUSHs(&PL_sv_undef); | |
943 | nitem++; | |
944 | if (flgok) { | |
c4420975 | 945 | const IV flags = SvIVX(*flgsvp); |
39f7a870 JH |
946 | |
947 | if (flags & PERLIO_F_UTF8) { | |
84bafc02 | 948 | XPUSHs(newSVpvs_flags("utf8", SVs_TEMP)); |
39f7a870 JH |
949 | nitem++; |
950 | } | |
951 | } | |
952 | } | |
953 | } | |
954 | ||
955 | SvREFCNT_dec(av); | |
956 | ||
957 | XSRETURN(nitem); | |
958 | } | |
959 | } | |
5fef3b4a | 960 | #endif |
39f7a870 JH |
961 | |
962 | XSRETURN(0); | |
963 | } | |
964 | ||
9a7034eb | 965 | XS(XS_Internals_hash_seed) |
c910b28a | 966 | { |
97aff369 | 967 | dVAR; |
c85d3f85 NC |
968 | /* Using dXSARGS would also have dITEM and dSP, |
969 | * which define 2 unused local variables. */ | |
557b887a | 970 | dAXMARK; |
53c1dcc0 | 971 | PERL_UNUSED_ARG(cv); |
ad73156c | 972 | PERL_UNUSED_VAR(mark); |
81eaca17 | 973 | XSRETURN_UV(PERL_HASH_SEED); |
c910b28a JH |
974 | } |
975 | ||
008fb0c0 | 976 | XS(XS_Internals_rehash_seed) |
8e90d776 | 977 | { |
97aff369 | 978 | dVAR; |
8e90d776 NC |
979 | /* Using dXSARGS would also have dITEM and dSP, |
980 | * which define 2 unused local variables. */ | |
557b887a | 981 | dAXMARK; |
53c1dcc0 | 982 | PERL_UNUSED_ARG(cv); |
ad73156c | 983 | PERL_UNUSED_VAR(mark); |
008fb0c0 | 984 | XSRETURN_UV(PL_rehash_seed); |
8e90d776 NC |
985 | } |
986 | ||
05619474 NC |
987 | XS(XS_Internals_HvREHASH) /* Subject to change */ |
988 | { | |
97aff369 | 989 | dVAR; |
05619474 | 990 | dXSARGS; |
93c51217 | 991 | PERL_UNUSED_ARG(cv); |
05619474 | 992 | if (SvROK(ST(0))) { |
ef8f7699 | 993 | const HV * const hv = (const HV *) SvRV(ST(0)); |
05619474 NC |
994 | if (items == 1 && SvTYPE(hv) == SVt_PVHV) { |
995 | if (HvREHASH(hv)) | |
996 | XSRETURN_YES; | |
997 | else | |
998 | XSRETURN_NO; | |
999 | } | |
1000 | } | |
1001 | Perl_croak(aTHX_ "Internals::HvREHASH $hashref"); | |
1002 | } | |
241d1a3b | 1003 | |
80305961 YO |
1004 | XS(XS_re_is_regexp) |
1005 | { | |
1006 | dVAR; | |
1007 | dXSARGS; | |
f7e71195 AB |
1008 | PERL_UNUSED_VAR(cv); |
1009 | ||
80305961 | 1010 | if (items != 1) |
afa74d42 | 1011 | croak_xs_usage(cv, "sv"); |
f7e71195 | 1012 | |
f7e71195 AB |
1013 | if (SvRXOK(ST(0))) { |
1014 | XSRETURN_YES; | |
1015 | } else { | |
1016 | XSRETURN_NO; | |
80305961 YO |
1017 | } |
1018 | } | |
1019 | ||
192b9cd1 | 1020 | XS(XS_re_regnames_count) |
80305961 | 1021 | { |
192b9cd1 AB |
1022 | REGEXP *rx = PL_curpm ? PM_GETRE(PL_curpm) : NULL; |
1023 | SV * ret; | |
80305961 YO |
1024 | dVAR; |
1025 | dXSARGS; | |
192b9cd1 AB |
1026 | |
1027 | if (items != 0) | |
afa74d42 | 1028 | croak_xs_usage(cv, ""); |
192b9cd1 AB |
1029 | |
1030 | SP -= items; | |
fdae9473 | 1031 | PUTBACK; |
192b9cd1 AB |
1032 | |
1033 | if (!rx) | |
1034 | XSRETURN_UNDEF; | |
1035 | ||
1036 | ret = CALLREG_NAMED_BUFF_COUNT(rx); | |
1037 | ||
1038 | SPAGAIN; | |
fdae9473 NC |
1039 | PUSHs(ret ? sv_2mortal(ret) : &PL_sv_undef); |
1040 | XSRETURN(1); | |
192b9cd1 AB |
1041 | } |
1042 | ||
1043 | XS(XS_re_regname) | |
1044 | { | |
1045 | dVAR; | |
1046 | dXSARGS; | |
1047 | REGEXP * rx; | |
1048 | U32 flags; | |
1049 | SV * ret; | |
1050 | ||
28d8d7f4 | 1051 | if (items < 1 || items > 2) |
afa74d42 | 1052 | croak_xs_usage(cv, "name[, all ]"); |
192b9cd1 | 1053 | |
80305961 | 1054 | SP -= items; |
fdae9473 | 1055 | PUTBACK; |
80305961 | 1056 | |
192b9cd1 AB |
1057 | rx = PL_curpm ? PM_GETRE(PL_curpm) : NULL; |
1058 | ||
1059 | if (!rx) | |
1060 | XSRETURN_UNDEF; | |
1061 | ||
1062 | if (items == 2 && SvTRUE(ST(1))) { | |
f1b875a0 | 1063 | flags = RXapif_ALL; |
192b9cd1 | 1064 | } else { |
f1b875a0 | 1065 | flags = RXapif_ONE; |
80305961 | 1066 | } |
f1b875a0 | 1067 | ret = CALLREG_NAMED_BUFF_FETCH(rx, ST(0), (flags | RXapif_REGNAME)); |
192b9cd1 | 1068 | |
fdae9473 NC |
1069 | SPAGAIN; |
1070 | PUSHs(ret ? sv_2mortal(ret) : &PL_sv_undef); | |
1071 | XSRETURN(1); | |
80305961 YO |
1072 | } |
1073 | ||
192b9cd1 | 1074 | |
80305961 YO |
1075 | XS(XS_re_regnames) |
1076 | { | |
192b9cd1 | 1077 | dVAR; |
80305961 | 1078 | dXSARGS; |
192b9cd1 AB |
1079 | REGEXP * rx; |
1080 | U32 flags; | |
1081 | SV *ret; | |
1082 | AV *av; | |
1083 | I32 length; | |
1084 | I32 i; | |
1085 | SV **entry; | |
1086 | ||
1087 | if (items > 1) | |
afa74d42 | 1088 | croak_xs_usage(cv, "[all]"); |
192b9cd1 AB |
1089 | |
1090 | rx = PL_curpm ? PM_GETRE(PL_curpm) : NULL; | |
1091 | ||
1092 | if (!rx) | |
1093 | XSRETURN_UNDEF; | |
1094 | ||
1095 | if (items == 1 && SvTRUE(ST(0))) { | |
f1b875a0 | 1096 | flags = RXapif_ALL; |
192b9cd1 | 1097 | } else { |
f1b875a0 | 1098 | flags = RXapif_ONE; |
192b9cd1 AB |
1099 | } |
1100 | ||
80305961 | 1101 | SP -= items; |
fdae9473 | 1102 | PUTBACK; |
80305961 | 1103 | |
f1b875a0 | 1104 | ret = CALLREG_NAMED_BUFF_ALL(rx, (flags | RXapif_REGNAMES)); |
192b9cd1 AB |
1105 | |
1106 | SPAGAIN; | |
1107 | ||
192b9cd1 AB |
1108 | if (!ret) |
1109 | XSRETURN_UNDEF; | |
1110 | ||
502c6561 | 1111 | av = MUTABLE_AV(SvRV(ret)); |
192b9cd1 AB |
1112 | length = av_len(av); |
1113 | ||
1114 | for (i = 0; i <= length; i++) { | |
1115 | entry = av_fetch(av, i, FALSE); | |
1116 | ||
1117 | if (!entry) | |
1118 | Perl_croak(aTHX_ "NULL array element in re::regnames()"); | |
1119 | ||
ec83ea38 | 1120 | mXPUSHs(SvREFCNT_inc_simple_NN(*entry)); |
80305961 | 1121 | } |
ec83ea38 MHM |
1122 | |
1123 | SvREFCNT_dec(ret); | |
1124 | ||
192b9cd1 AB |
1125 | PUTBACK; |
1126 | return; | |
80305961 YO |
1127 | } |
1128 | ||
192c1e27 JH |
1129 | XS(XS_re_regexp_pattern) |
1130 | { | |
1131 | dVAR; | |
1132 | dXSARGS; | |
1133 | REGEXP *re; | |
192c1e27 JH |
1134 | |
1135 | if (items != 1) | |
afa74d42 | 1136 | croak_xs_usage(cv, "sv"); |
192c1e27 JH |
1137 | |
1138 | SP -= items; | |
1139 | ||
1140 | /* | |
1141 | Checks if a reference is a regex or not. If the parameter is | |
1142 | not a ref, or is not the result of a qr// then returns false | |
1143 | in scalar context and an empty list in list context. | |
1144 | Otherwise in list context it returns the pattern and the | |
1145 | modifiers, in scalar context it returns the pattern just as it | |
1146 | would if the qr// was stringified normally, regardless as | |
486ec47a | 1147 | to the class of the variable and any stringification overloads |
192c1e27 JH |
1148 | on the object. |
1149 | */ | |
1150 | ||
1151 | if ((re = SvRX(ST(0)))) /* assign deliberate */ | |
1152 | { | |
22c985d5 | 1153 | /* Houston, we have a regex! */ |
192c1e27 | 1154 | SV *pattern; |
192c1e27 JH |
1155 | |
1156 | if ( GIMME_V == G_ARRAY ) { | |
9de15fec KW |
1157 | STRLEN left = 0; |
1158 | char reflags[sizeof(INT_PAT_MODS) + 1]; /* The +1 is for the charset | |
1159 | modifier */ | |
69af1167 SH |
1160 | const char *fptr; |
1161 | char ch; | |
1162 | U16 match_flags; | |
1163 | ||
192c1e27 JH |
1164 | /* |
1165 | we are in list context so stringify | |
1166 | the modifiers that apply. We ignore "negative | |
1167 | modifiers" in this scenario. | |
1168 | */ | |
1169 | ||
9de15fec KW |
1170 | if (RX_EXTFLAGS(re) & RXf_PMf_LOCALE) { |
1171 | reflags[left++] = LOCALE_PAT_MOD; | |
1172 | } | |
1173 | else if (RX_EXTFLAGS(re) & RXf_PMf_UNICODE) { | |
1174 | reflags[left++] = UNICODE_PAT_MOD; | |
1175 | } | |
69af1167 SH |
1176 | fptr = INT_PAT_MODS; |
1177 | match_flags = (U16)((RX_EXTFLAGS(re) & PMf_COMPILETIME) | |
192c1e27 JH |
1178 | >> RXf_PMf_STD_PMMOD_SHIFT); |
1179 | ||
1180 | while((ch = *fptr++)) { | |
1181 | if(match_flags & 1) { | |
1182 | reflags[left++] = ch; | |
1183 | } | |
1184 | match_flags >>= 1; | |
1185 | } | |
1186 | ||
fb632ce3 NC |
1187 | pattern = newSVpvn_flags(RX_PRECOMP(re),RX_PRELEN(re), |
1188 | (RX_UTF8(re) ? SVf_UTF8 : 0) | SVs_TEMP); | |
192c1e27 JH |
1189 | |
1190 | /* return the pattern and the modifiers */ | |
1191 | XPUSHs(pattern); | |
fb632ce3 | 1192 | XPUSHs(newSVpvn_flags(reflags, left, SVs_TEMP)); |
192c1e27 JH |
1193 | XSRETURN(2); |
1194 | } else { | |
1195 | /* Scalar, so use the string that Perl would return */ | |
1196 | /* return the pattern in (?msix:..) format */ | |
1197 | #if PERL_VERSION >= 11 | |
daba3364 | 1198 | pattern = sv_2mortal(newSVsv(MUTABLE_SV(re))); |
192c1e27 | 1199 | #else |
fb632ce3 NC |
1200 | pattern = newSVpvn_flags(RX_WRAPPED(re), RX_WRAPLEN(re), |
1201 | (RX_UTF8(re) ? SVf_UTF8 : 0) | SVs_TEMP); | |
192c1e27 JH |
1202 | #endif |
1203 | XPUSHs(pattern); | |
1204 | XSRETURN(1); | |
1205 | } | |
1206 | } else { | |
1207 | /* It ain't a regexp folks */ | |
1208 | if ( GIMME_V == G_ARRAY ) { | |
1209 | /* return the empty list */ | |
1210 | XSRETURN_UNDEF; | |
1211 | } else { | |
1212 | /* Because of the (?:..) wrapping involved in a | |
1213 | stringified pattern it is impossible to get a | |
1214 | result for a real regexp that would evaluate to | |
1215 | false. Therefore we can return PL_sv_no to signify | |
1216 | that the object is not a regex, this means that one | |
1217 | can say | |
1218 | ||
1219 | if (regex($might_be_a_regex) eq '(?:foo)') { } | |
1220 | ||
1221 | and not worry about undefined values. | |
1222 | */ | |
1223 | XSRETURN_NO; | |
1224 | } | |
1225 | } | |
1226 | /* NOT-REACHED */ | |
1227 | } | |
1228 | ||
eff5b9d5 NC |
1229 | struct xsub_details { |
1230 | const char *name; | |
1231 | XSUBADDR_t xsub; | |
1232 | const char *proto; | |
1233 | }; | |
1234 | ||
1235 | struct xsub_details details[] = { | |
1236 | {"UNIVERSAL::isa", XS_UNIVERSAL_isa, NULL}, | |
1237 | {"UNIVERSAL::can", XS_UNIVERSAL_can, NULL}, | |
1238 | {"UNIVERSAL::DOES", XS_UNIVERSAL_DOES, NULL}, | |
1239 | {"UNIVERSAL::VERSION", XS_UNIVERSAL_VERSION, NULL}, | |
1240 | {"version::()", XS_version_noop, NULL}, | |
1241 | {"version::new", XS_version_new, NULL}, | |
1242 | {"version::parse", XS_version_new, NULL}, | |
1243 | {"version::(\"\"", XS_version_stringify, NULL}, | |
1244 | {"version::stringify", XS_version_stringify, NULL}, | |
1245 | {"version::(0+", XS_version_numify, NULL}, | |
1246 | {"version::numify", XS_version_numify, NULL}, | |
1247 | {"version::normal", XS_version_normal, NULL}, | |
1248 | {"version::(cmp", XS_version_vcmp, NULL}, | |
1249 | {"version::(<=>", XS_version_vcmp, NULL}, | |
1250 | {"version::vcmp", XS_version_vcmp, NULL}, | |
1251 | {"version::(bool", XS_version_boolean, NULL}, | |
1252 | {"version::boolean", XS_version_boolean, NULL}, | |
1253 | {"version::(nomethod", XS_version_noop, NULL}, | |
1254 | {"version::noop", XS_version_noop, NULL}, | |
1255 | {"version::is_alpha", XS_version_is_alpha, NULL}, | |
1256 | {"version::qv", XS_version_qv, NULL}, | |
1257 | {"version::declare", XS_version_qv, NULL}, | |
1258 | {"version::is_qv", XS_version_is_qv, NULL}, | |
1259 | {"utf8::is_utf8", XS_utf8_is_utf8, NULL}, | |
1260 | {"utf8::valid", XS_utf8_valid, NULL}, | |
1261 | {"utf8::encode", XS_utf8_encode, NULL}, | |
1262 | {"utf8::decode", XS_utf8_decode, NULL}, | |
1263 | {"utf8::upgrade", XS_utf8_upgrade, NULL}, | |
1264 | {"utf8::downgrade", XS_utf8_downgrade, NULL}, | |
1265 | {"utf8::native_to_unicode", XS_utf8_native_to_unicode, NULL}, | |
1266 | {"utf8::unicode_to_native", XS_utf8_unicode_to_native, NULL}, | |
1267 | {"Internals::SvREADONLY", XS_Internals_SvREADONLY, "\\[$%@];$"}, | |
1268 | {"Internals::SvREFCNT", XS_Internals_SvREFCNT, "\\[$%@];$"}, | |
1269 | {"Internals::hv_clear_placeholders", XS_Internals_hv_clear_placehold, "\\%"}, | |
1270 | {"PerlIO::get_layers", XS_PerlIO_get_layers, "*;@"}, | |
1271 | {"Internals::hash_seed", XS_Internals_hash_seed, ""}, | |
1272 | {"Internals::rehash_seed", XS_Internals_rehash_seed, ""}, | |
1273 | {"Internals::HvREHASH", XS_Internals_HvREHASH, "\\%"}, | |
1274 | {"re::is_regexp", XS_re_is_regexp, "$"}, | |
1275 | {"re::regname", XS_re_regname, ";$$"}, | |
1276 | {"re::regnames", XS_re_regnames, ";$"}, | |
1277 | {"re::regnames_count", XS_re_regnames_count, ""}, | |
1278 | {"re::regexp_pattern", XS_re_regexp_pattern, "$"}, | |
eff5b9d5 NC |
1279 | }; |
1280 | ||
1281 | void | |
1282 | Perl_boot_core_UNIVERSAL(pTHX) | |
1283 | { | |
1284 | dVAR; | |
1285 | static const char file[] = __FILE__; | |
1286 | struct xsub_details *xsub = details; | |
1287 | const struct xsub_details *end | |
1288 | = details + sizeof(details) / sizeof(details[0]); | |
1289 | ||
1290 | do { | |
1291 | newXS_flags(xsub->name, xsub->xsub, file, xsub->proto, 0); | |
1292 | } while (++xsub < end); | |
1293 | ||
1294 | /* register the overloading (type 'A') magic */ | |
1295 | PL_amagic_generation++; | |
1296 | ||
1297 | /* Providing a Regexp::DESTROY fixes #21347. See test in t/op/ref.t */ | |
1298 | CvFILE(newCONSTSUB(get_hv("Regexp::", GV_ADD), "DESTROY", NULL)) | |
1299 | = (char *)file; | |
1300 | } | |
80305961 | 1301 | |
241d1a3b NC |
1302 | /* |
1303 | * Local variables: | |
1304 | * c-indentation-style: bsd | |
1305 | * c-basic-offset: 4 | |
1306 | * indent-tabs-mode: t | |
1307 | * End: | |
1308 | * | |
37442d52 RGS |
1309 | * ex: set ts=8 sts=4 sw=4 noet: |
1310 | */ |