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 | |
24 | * clever to move them to seperate XS files which would then be pulled | |
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 | ||
aea32303 NC |
36 | static HV * |
37 | S_get_isa_hash(pTHX_ HV *const stash) | |
00bf72ff NC |
38 | { |
39 | dVAR; | |
40 | struct mro_meta *const meta = HvMROMETA(stash); | |
41 | ||
42 | PERL_ARGS_ASSERT_GET_ISA_HASH; | |
43 | ||
44 | if (!meta->isa) { | |
45 | AV *const isa = mro_get_linear_isa(stash); | |
46 | if (!meta->isa) { | |
47 | HV *const isa_hash = newHV(); | |
48 | /* Linearisation didn't build it for us, so do it here. */ | |
49 | SV *const *svp = AvARRAY(isa); | |
50 | SV *const *const svp_end = svp + AvFILLp(isa) + 1; | |
51 | const HEK *const canon_name = HvNAME_HEK(stash); | |
52 | ||
53 | while (svp < svp_end) { | |
54 | (void) hv_store_ent(isa_hash, *svp++, &PL_sv_undef, 0); | |
55 | } | |
56 | ||
57 | (void) hv_common(isa_hash, NULL, HEK_KEY(canon_name), | |
58 | HEK_LEN(canon_name), HEK_FLAGS(canon_name), | |
59 | HV_FETCH_ISSTORE, &PL_sv_undef, | |
60 | HEK_HASH(canon_name)); | |
61 | (void) hv_store(isa_hash, "UNIVERSAL", 9, &PL_sv_undef, 0); | |
62 | ||
63 | SvREADONLY_on(isa_hash); | |
64 | ||
65 | meta->isa = isa_hash; | |
66 | } | |
67 | } | |
68 | return meta->isa; | |
69 | } | |
70 | ||
6d4a7be2 | 71 | /* |
72 | * Contributed by Graham Barr <Graham.Barr@tiuk.ti.com> | |
73 | * The main guts of traverse_isa was actually copied from gv_fetchmeth | |
74 | */ | |
75 | ||
a9ec700e | 76 | STATIC bool |
515a4f72 | 77 | S_isa_lookup(pTHX_ HV *stash, const char * const name) |
6d4a7be2 | 78 | { |
97aff369 | 79 | dVAR; |
a49ba3fc | 80 | const struct mro_meta *const meta = HvMROMETA(stash); |
aea32303 | 81 | HV *const isa = meta->isa ? meta->isa : S_get_isa_hash(aTHX_ stash); |
a49ba3fc NC |
82 | STRLEN len = strlen(name); |
83 | const HV *our_stash; | |
6d4a7be2 | 84 | |
7918f24d NC |
85 | PERL_ARGS_ASSERT_ISA_LOOKUP; |
86 | ||
a49ba3fc NC |
87 | if (hv_common(isa, NULL, name, len, 0 /* No "UTF-8" flag possible with only |
88 | a char * argument*/, | |
89 | HV_FETCH_ISEXISTS, NULL, 0)) { | |
90 | /* Direct name lookup worked. */ | |
a9ec700e | 91 | return TRUE; |
a49ba3fc | 92 | } |
6d4a7be2 | 93 | |
a49ba3fc NC |
94 | /* A stash/class can go by many names (ie. User == main::User), so |
95 | we use the name in the stash itself, which is canonical. */ | |
96 | our_stash = gv_stashpvn(name, len, 0); | |
97 | ||
98 | if (our_stash) { | |
99 | HEK *const canon_name = HvNAME_HEK(our_stash); | |
a1d407e8 | 100 | |
a49ba3fc NC |
101 | if (hv_common(isa, NULL, HEK_KEY(canon_name), HEK_LEN(canon_name), |
102 | HEK_FLAGS(canon_name), | |
103 | HV_FETCH_ISEXISTS, NULL, HEK_HASH(canon_name))) { | |
e1a479c5 | 104 | return TRUE; |
a49ba3fc | 105 | } |
6d4a7be2 | 106 | } |
107 | ||
a9ec700e | 108 | return FALSE; |
6d4a7be2 | 109 | } |
110 | ||
954c1994 | 111 | /* |
ccfc67b7 JH |
112 | =head1 SV Manipulation Functions |
113 | ||
954c1994 GS |
114 | =for apidoc sv_derived_from |
115 | ||
6885da0e | 116 | Returns a boolean indicating whether the SV is derived from the specified class |
117 | I<at the C level>. To check derivation at the Perl level, call C<isa()> as a | |
118 | normal Perl method. | |
954c1994 GS |
119 | |
120 | =cut | |
121 | */ | |
122 | ||
55497cff | 123 | bool |
15f169a1 | 124 | Perl_sv_derived_from(pTHX_ SV *sv, const char *const name) |
55497cff | 125 | { |
97aff369 | 126 | dVAR; |
0b6f4f5c | 127 | HV *stash; |
46e4b22b | 128 | |
7918f24d NC |
129 | PERL_ARGS_ASSERT_SV_DERIVED_FROM; |
130 | ||
5b295bef | 131 | SvGETMAGIC(sv); |
55497cff | 132 | |
133 | if (SvROK(sv)) { | |
0b6f4f5c | 134 | const char *type; |
55497cff | 135 | sv = SvRV(sv); |
136 | type = sv_reftype(sv,0); | |
0b6f4f5c AL |
137 | if (type && strEQ(type,name)) |
138 | return TRUE; | |
139 | stash = SvOBJECT(sv) ? SvSTASH(sv) : NULL; | |
55497cff | 140 | } |
141 | else { | |
da51bb9b | 142 | stash = gv_stashsv(sv, 0); |
55497cff | 143 | } |
46e4b22b | 144 | |
4a9e32d8 | 145 | return stash ? isa_lookup(stash, name) : FALSE; |
55497cff | 146 | } |
147 | ||
cbc021f9 | 148 | /* |
149 | =for apidoc sv_does | |
150 | ||
151 | Returns a boolean indicating whether the SV performs a specific, named role. | |
152 | The SV can be a Perl object or the name of a Perl class. | |
153 | ||
154 | =cut | |
155 | */ | |
156 | ||
1b026014 NIS |
157 | #include "XSUB.h" |
158 | ||
cbc021f9 | 159 | bool |
15f169a1 | 160 | Perl_sv_does(pTHX_ SV *sv, const char *const name) |
cbc021f9 | 161 | { |
162 | const char *classname; | |
163 | bool does_it; | |
59e7186f | 164 | SV *methodname; |
cbc021f9 | 165 | dSP; |
7918f24d NC |
166 | |
167 | PERL_ARGS_ASSERT_SV_DOES; | |
168 | ||
cbc021f9 | 169 | ENTER; |
170 | SAVETMPS; | |
171 | ||
172 | SvGETMAGIC(sv); | |
173 | ||
174 | if (!SvOK(sv) || !(SvROK(sv) || (SvPOK(sv) && SvCUR(sv)) | |
7ce46f2a GG |
175 | || (SvGMAGICAL(sv) && SvPOKp(sv) && SvCUR(sv)))) { |
176 | LEAVE; | |
cbc021f9 | 177 | return FALSE; |
7ce46f2a | 178 | } |
cbc021f9 | 179 | |
180 | if (sv_isobject(sv)) { | |
181 | classname = sv_reftype(SvRV(sv),TRUE); | |
182 | } else { | |
94707740 | 183 | classname = SvPV_nolen(sv); |
cbc021f9 | 184 | } |
185 | ||
7ce46f2a GG |
186 | if (strEQ(name,classname)) { |
187 | LEAVE; | |
cbc021f9 | 188 | return TRUE; |
7ce46f2a | 189 | } |
cbc021f9 | 190 | |
191 | PUSHMARK(SP); | |
192 | XPUSHs(sv); | |
6e449a3a | 193 | mXPUSHs(newSVpv(name, 0)); |
cbc021f9 | 194 | PUTBACK; |
195 | ||
84bafc02 | 196 | methodname = newSVpvs_flags("isa", SVs_TEMP); |
59e7186f RGS |
197 | /* ugly hack: use the SvSCREAM flag so S_method_common |
198 | * can figure out we're calling DOES() and not isa(), | |
199 | * and report eventual errors correctly. --rgs */ | |
200 | SvSCREAM_on(methodname); | |
201 | call_sv(methodname, G_SCALAR | G_METHOD); | |
cbc021f9 | 202 | SPAGAIN; |
203 | ||
204 | does_it = SvTRUE( TOPs ); | |
205 | FREETMPS; | |
206 | LEAVE; | |
207 | ||
208 | return does_it; | |
209 | } | |
210 | ||
afa74d42 NC |
211 | /* |
212 | =for apidoc croak_xs_usage | |
213 | ||
214 | A specialised variant of C<croak()> for emitting the usage message for xsubs | |
215 | ||
216 | croak_xs_usage(cv, "eee_yow"); | |
217 | ||
218 | works out the package name and subroutine name from C<cv>, and then calls | |
219 | C<croak()>. Hence if C<cv> is C<&ouch::awk>, it would call C<croak> as: | |
220 | ||
1b1ee2ef | 221 | Perl_croak(aTHX_ "Usage: %s::%s(%s)", "ouch" "awk", "eee_yow"); |
afa74d42 NC |
222 | |
223 | =cut | |
224 | */ | |
225 | ||
226 | void | |
227 | Perl_croak_xs_usage(pTHX_ const CV *const cv, const char *const params) | |
228 | { | |
229 | const GV *const gv = CvGV(cv); | |
230 | ||
231 | PERL_ARGS_ASSERT_CROAK_XS_USAGE; | |
232 | ||
233 | if (gv) { | |
234 | const char *const gvname = GvNAME(gv); | |
235 | const HV *const stash = GvSTASH(gv); | |
236 | const char *const hvname = stash ? HvNAME_get(stash) : NULL; | |
237 | ||
238 | if (hvname) | |
239 | Perl_croak(aTHX_ "Usage: %s::%s(%s)", hvname, gvname, params); | |
240 | else | |
241 | Perl_croak(aTHX_ "Usage: %s(%s)", gvname, params); | |
242 | } else { | |
243 | /* Pants. I don't think that it should be possible to get here. */ | |
93c51217 | 244 | Perl_croak(aTHX_ "Usage: CODE(0x%"UVxf")(%s)", PTR2UV(cv), params); |
afa74d42 NC |
245 | } |
246 | } | |
55497cff | 247 | |
6d4a7be2 | 248 | XS(XS_UNIVERSAL_isa) |
249 | { | |
97aff369 | 250 | dVAR; |
6d4a7be2 | 251 | dXSARGS; |
6d4a7be2 | 252 | |
253 | if (items != 2) | |
afa74d42 | 254 | croak_xs_usage(cv, "reference, kind"); |
c4420975 AL |
255 | else { |
256 | SV * const sv = ST(0); | |
257 | const char *name; | |
6d4a7be2 | 258 | |
c4420975 | 259 | SvGETMAGIC(sv); |
d3f7f2b2 | 260 | |
c4420975 AL |
261 | if (!SvOK(sv) || !(SvROK(sv) || (SvPOK(sv) && SvCUR(sv)) |
262 | || (SvGMAGICAL(sv) && SvPOKp(sv) && SvCUR(sv)))) | |
263 | XSRETURN_UNDEF; | |
f8f70380 | 264 | |
c4420975 | 265 | name = SvPV_nolen_const(ST(1)); |
6d4a7be2 | 266 | |
c4420975 AL |
267 | ST(0) = boolSV(sv_derived_from(sv, name)); |
268 | XSRETURN(1); | |
269 | } | |
6d4a7be2 | 270 | } |
271 | ||
6d4a7be2 | 272 | XS(XS_UNIVERSAL_can) |
273 | { | |
97aff369 | 274 | dVAR; |
6d4a7be2 | 275 | dXSARGS; |
276 | SV *sv; | |
6867be6d | 277 | const char *name; |
6d4a7be2 | 278 | SV *rv; |
6f08146e | 279 | HV *pkg = NULL; |
6d4a7be2 | 280 | |
281 | if (items != 2) | |
afa74d42 | 282 | croak_xs_usage(cv, "object-ref, method"); |
6d4a7be2 | 283 | |
284 | sv = ST(0); | |
f8f70380 | 285 | |
5b295bef | 286 | SvGETMAGIC(sv); |
d3f7f2b2 | 287 | |
253ecd6d RGS |
288 | if (!SvOK(sv) || !(SvROK(sv) || (SvPOK(sv) && SvCUR(sv)) |
289 | || (SvGMAGICAL(sv) && SvPOKp(sv) && SvCUR(sv)))) | |
f8f70380 GS |
290 | XSRETURN_UNDEF; |
291 | ||
0510663f | 292 | name = SvPV_nolen_const(ST(1)); |
3280af22 | 293 | rv = &PL_sv_undef; |
6d4a7be2 | 294 | |
46e4b22b | 295 | if (SvROK(sv)) { |
daba3364 | 296 | sv = MUTABLE_SV(SvRV(sv)); |
46e4b22b | 297 | if (SvOBJECT(sv)) |
6f08146e NIS |
298 | pkg = SvSTASH(sv); |
299 | } | |
300 | else { | |
da51bb9b | 301 | pkg = gv_stashsv(sv, 0); |
6f08146e NIS |
302 | } |
303 | ||
304 | if (pkg) { | |
c4420975 | 305 | GV * const gv = gv_fetchmethod_autoload(pkg, name, FALSE); |
dc848c6f | 306 | if (gv && isGV(gv)) |
daba3364 | 307 | rv = sv_2mortal(newRV(MUTABLE_SV(GvCV(gv)))); |
6d4a7be2 | 308 | } |
309 | ||
310 | ST(0) = rv; | |
311 | XSRETURN(1); | |
312 | } | |
313 | ||
cbc021f9 | 314 | XS(XS_UNIVERSAL_DOES) |
315 | { | |
316 | dVAR; | |
317 | dXSARGS; | |
58c0efa5 | 318 | PERL_UNUSED_ARG(cv); |
cbc021f9 | 319 | |
320 | if (items != 2) | |
26be3db7 | 321 | Perl_croak(aTHX_ "Usage: invocant->DOES(kind)"); |
cbc021f9 | 322 | else { |
323 | SV * const sv = ST(0); | |
324 | const char *name; | |
325 | ||
326 | name = SvPV_nolen_const(ST(1)); | |
327 | if (sv_does( sv, name )) | |
328 | XSRETURN_YES; | |
329 | ||
330 | XSRETURN_NO; | |
331 | } | |
332 | } | |
333 | ||
6d4a7be2 | 334 | XS(XS_UNIVERSAL_VERSION) |
335 | { | |
97aff369 | 336 | dVAR; |
6d4a7be2 | 337 | dXSARGS; |
338 | HV *pkg; | |
339 | GV **gvp; | |
340 | GV *gv; | |
341 | SV *sv; | |
e1ec3a88 | 342 | const char *undef; |
58c0efa5 | 343 | PERL_UNUSED_ARG(cv); |
6d4a7be2 | 344 | |
1571675a | 345 | if (SvROK(ST(0))) { |
daba3364 | 346 | sv = MUTABLE_SV(SvRV(ST(0))); |
1571675a | 347 | if (!SvOBJECT(sv)) |
cea2e8a9 | 348 | Perl_croak(aTHX_ "Cannot find version of an unblessed reference"); |
6d4a7be2 | 349 | pkg = SvSTASH(sv); |
350 | } | |
351 | else { | |
da51bb9b | 352 | pkg = gv_stashsv(ST(0), 0); |
6d4a7be2 | 353 | } |
354 | ||
4608196e | 355 | gvp = pkg ? (GV**)hv_fetchs(pkg, "VERSION", FALSE) : NULL; |
6d4a7be2 | 356 | |
0008872a | 357 | if (gvp && isGV(gv = *gvp) && (sv = GvSV(gv)) && SvOK(sv)) { |
c4420975 | 358 | SV * const nsv = sv_newmortal(); |
6d4a7be2 | 359 | sv_setsv(nsv, sv); |
360 | sv = nsv; | |
137d6fc0 | 361 | if ( !sv_derived_from(sv, "version")) |
ac0e6a2f | 362 | upg_version(sv, FALSE); |
c445ea15 | 363 | undef = NULL; |
6d4a7be2 | 364 | } |
365 | else { | |
daba3364 | 366 | sv = &PL_sv_undef; |
6d4a7be2 | 367 | undef = "(undef)"; |
368 | } | |
369 | ||
1571675a | 370 | if (items > 1) { |
1571675a GS |
371 | SV *req = ST(1); |
372 | ||
62658f4d | 373 | if (undef) { |
bfcb3514 | 374 | if (pkg) { |
c4420975 | 375 | const char * const name = HvNAME_get(pkg); |
a3b680e6 | 376 | Perl_croak(aTHX_ |
bfcb3514 NC |
377 | "%s does not define $%s::VERSION--version check failed", |
378 | name, name); | |
379 | } else { | |
a3b680e6 AL |
380 | Perl_croak(aTHX_ |
381 | "%s defines neither package nor VERSION--version check failed", | |
0510663f | 382 | SvPVx_nolen_const(ST(0)) ); |
62658f4d PM |
383 | } |
384 | } | |
ad63d80f | 385 | |
137d6fc0 JP |
386 | if ( !sv_derived_from(req, "version")) { |
387 | /* req may very well be R/O, so create a new object */ | |
ac0e6a2f | 388 | req = sv_2mortal( new_version(req) ); |
137d6fc0 | 389 | } |
1571675a | 390 | |
ac0e6a2f | 391 | if ( vcmp( req, sv ) > 0 ) { |
ef8f7699 | 392 | if ( hv_exists(MUTABLE_HV(SvRV(req)), "qv", 2 ) ) { |
ac0e6a2f RGS |
393 | Perl_croak(aTHX_ "%s version %"SVf" required--" |
394 | "this is only version %"SVf"", HvNAME_get(pkg), | |
e3a22e3f GF |
395 | SVfARG(sv_2mortal(vnormal(req))), |
396 | SVfARG(sv_2mortal(vnormal(sv)))); | |
ac0e6a2f RGS |
397 | } else { |
398 | Perl_croak(aTHX_ "%s version %"SVf" required--" | |
399 | "this is only version %"SVf"", HvNAME_get(pkg), | |
e3a22e3f GF |
400 | SVfARG(sv_2mortal(vstringify(req))), |
401 | SVfARG(sv_2mortal(vstringify(sv)))); | |
ac0e6a2f RGS |
402 | } |
403 | } | |
404 | ||
2d8e6c8d | 405 | } |
6d4a7be2 | 406 | |
2b140d5b | 407 | if ( SvOK(sv) && sv_derived_from(sv, "version") ) { |
e3a22e3f | 408 | ST(0) = sv_2mortal(vstringify(sv)); |
13f8f398 JP |
409 | } else { |
410 | ST(0) = sv; | |
b38a9dc5 | 411 | } |
6d4a7be2 | 412 | |
413 | XSRETURN(1); | |
414 | } | |
415 | ||
439cb1c4 JP |
416 | XS(XS_version_new) |
417 | { | |
97aff369 | 418 | dVAR; |
439cb1c4 | 419 | dXSARGS; |
129318bd | 420 | if (items > 3) |
afa74d42 | 421 | croak_xs_usage(cv, "class, version"); |
439cb1c4 JP |
422 | SP -= items; |
423 | { | |
137d6fc0 JP |
424 | SV *vs = ST(1); |
425 | SV *rv; | |
c4420975 AL |
426 | const char * const classname = |
427 | sv_isobject(ST(0)) /* get the class if called as an object method */ | |
428 | ? HvNAME(SvSTASH(SvRV(ST(0)))) | |
429 | : (char *)SvPV_nolen(ST(0)); | |
9137345a | 430 | |
91152fc1 | 431 | if ( items == 1 || ! SvOK(vs) ) { /* no param or explicit undef */ |
92dcf8ce JP |
432 | /* create empty object */ |
433 | vs = sv_newmortal(); | |
be5574c0 | 434 | sv_setpvs(vs, "0"); |
9137345a JP |
435 | } |
436 | else if ( items == 3 ) { | |
437 | vs = sv_newmortal(); | |
cfd0369c | 438 | Perl_sv_setpvf(aTHX_ vs,"v%s",SvPV_nolen_const(ST(2))); |
129318bd | 439 | } |
439cb1c4 | 440 | |
137d6fc0 | 441 | rv = new_version(vs); |
0723351e | 442 | if ( strcmp(classname,"version") != 0 ) /* inherited new() */ |
da51bb9b | 443 | sv_bless(rv, gv_stashpv(classname, GV_ADD)); |
137d6fc0 | 444 | |
6e449a3a | 445 | mPUSHs(rv); |
439cb1c4 JP |
446 | PUTBACK; |
447 | return; | |
448 | } | |
449 | } | |
450 | ||
451 | XS(XS_version_stringify) | |
452 | { | |
97aff369 | 453 | dVAR; |
41be1fbd JH |
454 | dXSARGS; |
455 | if (items < 1) | |
afa74d42 | 456 | croak_xs_usage(cv, "lobj, ..."); |
41be1fbd JH |
457 | SP -= items; |
458 | { | |
d808b681 | 459 | SV * lobj = ST(0); |
41be1fbd | 460 | |
d808b681 JP |
461 | if (sv_derived_from(lobj, "version") && SvROK(lobj)) { |
462 | lobj = SvRV(lobj); | |
41be1fbd JH |
463 | } |
464 | else | |
465 | Perl_croak(aTHX_ "lobj is not of type version"); | |
466 | ||
6e449a3a | 467 | mPUSHs(vstringify(lobj)); |
41be1fbd JH |
468 | |
469 | PUTBACK; | |
470 | return; | |
471 | } | |
439cb1c4 JP |
472 | } |
473 | ||
474 | XS(XS_version_numify) | |
475 | { | |
97aff369 | 476 | dVAR; |
41be1fbd JH |
477 | dXSARGS; |
478 | if (items < 1) | |
afa74d42 | 479 | croak_xs_usage(cv, "lobj, ..."); |
41be1fbd JH |
480 | SP -= items; |
481 | { | |
d808b681 | 482 | SV * lobj = ST(0); |
41be1fbd | 483 | |
d808b681 JP |
484 | if (sv_derived_from(lobj, "version") && SvROK(lobj)) { |
485 | lobj = SvRV(lobj); | |
41be1fbd JH |
486 | } |
487 | else | |
488 | Perl_croak(aTHX_ "lobj is not of type version"); | |
489 | ||
6e449a3a | 490 | mPUSHs(vnumify(lobj)); |
41be1fbd JH |
491 | |
492 | PUTBACK; | |
493 | return; | |
494 | } | |
439cb1c4 JP |
495 | } |
496 | ||
9137345a JP |
497 | XS(XS_version_normal) |
498 | { | |
97aff369 | 499 | dVAR; |
9137345a JP |
500 | dXSARGS; |
501 | if (items < 1) | |
afa74d42 | 502 | croak_xs_usage(cv, "lobj, ..."); |
9137345a JP |
503 | SP -= items; |
504 | { | |
d808b681 | 505 | SV * lobj = ST(0); |
9137345a | 506 | |
d808b681 JP |
507 | if (sv_derived_from(lobj, "version") && SvROK(lobj)) { |
508 | lobj = SvRV(lobj); | |
9137345a JP |
509 | } |
510 | else | |
511 | Perl_croak(aTHX_ "lobj is not of type version"); | |
512 | ||
6e449a3a | 513 | mPUSHs(vnormal(lobj)); |
9137345a JP |
514 | |
515 | PUTBACK; | |
516 | return; | |
517 | } | |
518 | } | |
519 | ||
439cb1c4 JP |
520 | XS(XS_version_vcmp) |
521 | { | |
97aff369 | 522 | dVAR; |
41be1fbd JH |
523 | dXSARGS; |
524 | if (items < 1) | |
afa74d42 | 525 | croak_xs_usage(cv, "lobj, ..."); |
41be1fbd JH |
526 | SP -= items; |
527 | { | |
d808b681 | 528 | SV * lobj = ST(0); |
41be1fbd | 529 | |
d808b681 JP |
530 | if (sv_derived_from(lobj, "version") && SvROK(lobj)) { |
531 | lobj = SvRV(lobj); | |
41be1fbd JH |
532 | } |
533 | else | |
534 | Perl_croak(aTHX_ "lobj is not of type version"); | |
535 | ||
536 | { | |
537 | SV *rs; | |
538 | SV *rvs; | |
539 | SV * robj = ST(1); | |
7452cf6a | 540 | const IV swap = (IV)SvIV(ST(2)); |
41be1fbd JH |
541 | |
542 | if ( ! sv_derived_from(robj, "version") ) | |
543 | { | |
e3a22e3f GF |
544 | robj = new_version(SvOK(robj) ? robj : newSVpvs_flags("0", SVs_TEMP)); |
545 | sv_2mortal(robj); | |
41be1fbd JH |
546 | } |
547 | rvs = SvRV(robj); | |
548 | ||
549 | if ( swap ) | |
550 | { | |
551 | rs = newSViv(vcmp(rvs,lobj)); | |
552 | } | |
553 | else | |
554 | { | |
555 | rs = newSViv(vcmp(lobj,rvs)); | |
556 | } | |
557 | ||
6e449a3a | 558 | mPUSHs(rs); |
41be1fbd JH |
559 | } |
560 | ||
561 | PUTBACK; | |
562 | return; | |
563 | } | |
439cb1c4 JP |
564 | } |
565 | ||
566 | XS(XS_version_boolean) | |
567 | { | |
97aff369 JH |
568 | dVAR; |
569 | dXSARGS; | |
570 | if (items < 1) | |
afa74d42 | 571 | croak_xs_usage(cv, "lobj, ..."); |
97aff369 | 572 | SP -= items; |
d808b681 | 573 | if (sv_derived_from(ST(0), "version") && SvROK(ST(0))) { |
c4420975 | 574 | SV * const lobj = SvRV(ST(0)); |
396482e1 | 575 | SV * const rs = newSViv( vcmp(lobj,new_version(newSVpvs("0"))) ); |
6e449a3a | 576 | mPUSHs(rs); |
c4420975 AL |
577 | PUTBACK; |
578 | return; | |
579 | } | |
580 | else | |
581 | Perl_croak(aTHX_ "lobj is not of type version"); | |
439cb1c4 JP |
582 | } |
583 | ||
584 | XS(XS_version_noop) | |
585 | { | |
97aff369 | 586 | dVAR; |
2dfd8427 AL |
587 | dXSARGS; |
588 | if (items < 1) | |
afa74d42 | 589 | croak_xs_usage(cv, "lobj, ..."); |
d808b681 | 590 | if (sv_derived_from(ST(0), "version") && SvROK(ST(0))) |
2dfd8427 AL |
591 | Perl_croak(aTHX_ "operation not supported with version object"); |
592 | else | |
593 | Perl_croak(aTHX_ "lobj is not of type version"); | |
594 | #ifndef HASATTRIBUTE_NORETURN | |
595 | XSRETURN_EMPTY; | |
596 | #endif | |
439cb1c4 JP |
597 | } |
598 | ||
c8d69e4a JP |
599 | XS(XS_version_is_alpha) |
600 | { | |
97aff369 | 601 | dVAR; |
c8d69e4a JP |
602 | dXSARGS; |
603 | if (items != 1) | |
afa74d42 | 604 | croak_xs_usage(cv, "lobj"); |
c8d69e4a | 605 | SP -= items; |
d808b681 | 606 | if (sv_derived_from(ST(0), "version") && SvROK(ST(0))) { |
c4420975 | 607 | SV * const lobj = ST(0); |
ef8f7699 | 608 | if ( hv_exists(MUTABLE_HV(SvRV(lobj)), "alpha", 5 ) ) |
c4420975 AL |
609 | XSRETURN_YES; |
610 | else | |
611 | XSRETURN_NO; | |
c8d69e4a JP |
612 | PUTBACK; |
613 | return; | |
614 | } | |
c4420975 AL |
615 | else |
616 | Perl_croak(aTHX_ "lobj is not of type version"); | |
c8d69e4a JP |
617 | } |
618 | ||
137d6fc0 JP |
619 | XS(XS_version_qv) |
620 | { | |
97aff369 | 621 | dVAR; |
137d6fc0 | 622 | dXSARGS; |
4ed3fda4 | 623 | PERL_UNUSED_ARG(cv); |
137d6fc0 JP |
624 | SP -= items; |
625 | { | |
f941e658 JP |
626 | SV * ver = ST(0); |
627 | SV * rv; | |
628 | const char * classname = ""; | |
91152fc1 | 629 | if ( items == 2 && SvOK(ST(1)) ) { |
f941e658 JP |
630 | /* getting called as object or class method */ |
631 | ver = ST(1); | |
632 | classname = | |
633 | sv_isobject(ST(0)) /* class called as an object method */ | |
634 | ? HvNAME_get(SvSTASH(SvRV(ST(0)))) | |
635 | : (char *)SvPV_nolen(ST(0)); | |
636 | } | |
637 | if ( !SvVOK(ver) ) { /* not already a v-string */ | |
638 | rv = sv_newmortal(); | |
ac0e6a2f RGS |
639 | sv_setsv(rv,ver); /* make a duplicate */ |
640 | upg_version(rv, TRUE); | |
f941e658 JP |
641 | } else { |
642 | rv = sv_2mortal(new_version(ver)); | |
137d6fc0 | 643 | } |
f941e658 JP |
644 | if ( items == 2 && strcmp(classname,"version") ) { /* inherited new() */ |
645 | sv_bless(rv, gv_stashpv(classname, GV_ADD)); | |
137d6fc0 | 646 | } |
f941e658 JP |
647 | PUSHs(rv); |
648 | } | |
649 | PUTBACK; | |
650 | return; | |
651 | } | |
137d6fc0 | 652 | |
f941e658 JP |
653 | XS(XS_version_is_qv) |
654 | { | |
655 | dVAR; | |
656 | dXSARGS; | |
657 | if (items != 1) | |
658 | croak_xs_usage(cv, "lobj"); | |
659 | SP -= items; | |
d808b681 | 660 | if (sv_derived_from(ST(0), "version") && SvROK(ST(0))) { |
f941e658 JP |
661 | SV * const lobj = ST(0); |
662 | if ( hv_exists(MUTABLE_HV(SvRV(lobj)), "qv", 2 ) ) | |
663 | XSRETURN_YES; | |
664 | else | |
665 | XSRETURN_NO; | |
137d6fc0 JP |
666 | PUTBACK; |
667 | return; | |
668 | } | |
f941e658 JP |
669 | else |
670 | Perl_croak(aTHX_ "lobj is not of type version"); | |
137d6fc0 JP |
671 | } |
672 | ||
8800c35a JH |
673 | XS(XS_utf8_is_utf8) |
674 | { | |
97aff369 | 675 | dVAR; |
41be1fbd JH |
676 | dXSARGS; |
677 | if (items != 1) | |
afa74d42 | 678 | croak_xs_usage(cv, "sv"); |
c4420975 | 679 | else { |
76f73021 GF |
680 | SV * const sv = ST(0); |
681 | SvGETMAGIC(sv); | |
c4420975 AL |
682 | if (SvUTF8(sv)) |
683 | XSRETURN_YES; | |
684 | else | |
685 | XSRETURN_NO; | |
41be1fbd JH |
686 | } |
687 | XSRETURN_EMPTY; | |
8800c35a JH |
688 | } |
689 | ||
1b026014 NIS |
690 | XS(XS_utf8_valid) |
691 | { | |
97aff369 | 692 | dVAR; |
41be1fbd JH |
693 | dXSARGS; |
694 | if (items != 1) | |
afa74d42 | 695 | croak_xs_usage(cv, "sv"); |
c4420975 AL |
696 | else { |
697 | SV * const sv = ST(0); | |
698 | STRLEN len; | |
699 | const char * const s = SvPV_const(sv,len); | |
700 | if (!SvUTF8(sv) || is_utf8_string((const U8*)s,len)) | |
701 | XSRETURN_YES; | |
702 | else | |
703 | XSRETURN_NO; | |
704 | } | |
41be1fbd | 705 | XSRETURN_EMPTY; |
1b026014 NIS |
706 | } |
707 | ||
708 | XS(XS_utf8_encode) | |
709 | { | |
97aff369 | 710 | dVAR; |
1b026014 NIS |
711 | dXSARGS; |
712 | if (items != 1) | |
afa74d42 | 713 | croak_xs_usage(cv, "sv"); |
c4420975 | 714 | sv_utf8_encode(ST(0)); |
1b026014 NIS |
715 | XSRETURN_EMPTY; |
716 | } | |
717 | ||
718 | XS(XS_utf8_decode) | |
719 | { | |
97aff369 | 720 | dVAR; |
1b026014 NIS |
721 | dXSARGS; |
722 | if (items != 1) | |
afa74d42 | 723 | croak_xs_usage(cv, "sv"); |
c4420975 AL |
724 | else { |
725 | SV * const sv = ST(0); | |
6867be6d | 726 | const bool RETVAL = sv_utf8_decode(sv); |
1b026014 NIS |
727 | ST(0) = boolSV(RETVAL); |
728 | sv_2mortal(ST(0)); | |
729 | } | |
730 | XSRETURN(1); | |
731 | } | |
732 | ||
733 | XS(XS_utf8_upgrade) | |
734 | { | |
97aff369 | 735 | dVAR; |
1b026014 NIS |
736 | dXSARGS; |
737 | if (items != 1) | |
afa74d42 | 738 | croak_xs_usage(cv, "sv"); |
c4420975 AL |
739 | else { |
740 | SV * const sv = ST(0); | |
1b026014 NIS |
741 | STRLEN RETVAL; |
742 | dXSTARG; | |
743 | ||
744 | RETVAL = sv_utf8_upgrade(sv); | |
745 | XSprePUSH; PUSHi((IV)RETVAL); | |
746 | } | |
747 | XSRETURN(1); | |
748 | } | |
749 | ||
750 | XS(XS_utf8_downgrade) | |
751 | { | |
97aff369 | 752 | dVAR; |
1b026014 NIS |
753 | dXSARGS; |
754 | if (items < 1 || items > 2) | |
afa74d42 | 755 | croak_xs_usage(cv, "sv, failok=0"); |
c4420975 AL |
756 | else { |
757 | SV * const sv = ST(0); | |
6867be6d AL |
758 | const bool failok = (items < 2) ? 0 : (int)SvIV(ST(1)); |
759 | const bool RETVAL = sv_utf8_downgrade(sv, failok); | |
1b026014 | 760 | |
1b026014 NIS |
761 | ST(0) = boolSV(RETVAL); |
762 | sv_2mortal(ST(0)); | |
763 | } | |
764 | XSRETURN(1); | |
765 | } | |
766 | ||
767 | XS(XS_utf8_native_to_unicode) | |
768 | { | |
97aff369 | 769 | dVAR; |
1b026014 | 770 | dXSARGS; |
6867be6d | 771 | const UV uv = SvUV(ST(0)); |
b7953727 JH |
772 | |
773 | if (items > 1) | |
afa74d42 | 774 | croak_xs_usage(cv, "sv"); |
b7953727 | 775 | |
1b026014 NIS |
776 | ST(0) = sv_2mortal(newSViv(NATIVE_TO_UNI(uv))); |
777 | XSRETURN(1); | |
778 | } | |
779 | ||
780 | XS(XS_utf8_unicode_to_native) | |
781 | { | |
97aff369 | 782 | dVAR; |
1b026014 | 783 | dXSARGS; |
6867be6d | 784 | const UV uv = SvUV(ST(0)); |
b7953727 JH |
785 | |
786 | if (items > 1) | |
afa74d42 | 787 | croak_xs_usage(cv, "sv"); |
b7953727 | 788 | |
1b026014 NIS |
789 | ST(0) = sv_2mortal(newSViv(UNI_TO_NATIVE(uv))); |
790 | XSRETURN(1); | |
791 | } | |
792 | ||
14a976d6 | 793 | XS(XS_Internals_SvREADONLY) /* This is dangerous stuff. */ |
29569577 | 794 | { |
97aff369 | 795 | dVAR; |
29569577 | 796 | dXSARGS; |
80b6a949 AB |
797 | SV * const svz = ST(0); |
798 | SV * sv; | |
58c0efa5 | 799 | PERL_UNUSED_ARG(cv); |
6867be6d | 800 | |
80b6a949 AB |
801 | /* [perl #77776] - called as &foo() not foo() */ |
802 | if (!SvROK(svz)) | |
803 | croak_xs_usage(cv, "SCALAR[, ON]"); | |
804 | ||
805 | sv = SvRV(svz); | |
806 | ||
29569577 JH |
807 | if (items == 1) { |
808 | if (SvREADONLY(sv)) | |
809 | XSRETURN_YES; | |
810 | else | |
811 | XSRETURN_NO; | |
812 | } | |
813 | else if (items == 2) { | |
814 | if (SvTRUE(ST(1))) { | |
815 | SvREADONLY_on(sv); | |
816 | XSRETURN_YES; | |
817 | } | |
818 | else { | |
14a976d6 | 819 | /* I hope you really know what you are doing. */ |
29569577 JH |
820 | SvREADONLY_off(sv); |
821 | XSRETURN_NO; | |
822 | } | |
823 | } | |
14a976d6 | 824 | XSRETURN_UNDEF; /* Can't happen. */ |
29569577 JH |
825 | } |
826 | ||
14a976d6 | 827 | XS(XS_Internals_SvREFCNT) /* This is dangerous stuff. */ |
29569577 | 828 | { |
97aff369 | 829 | dVAR; |
29569577 | 830 | dXSARGS; |
80b6a949 AB |
831 | SV * const svz = ST(0); |
832 | SV * sv; | |
58c0efa5 | 833 | PERL_UNUSED_ARG(cv); |
6867be6d | 834 | |
80b6a949 AB |
835 | /* [perl #77776] - called as &foo() not foo() */ |
836 | if (!SvROK(svz)) | |
837 | croak_xs_usage(cv, "SCALAR[, REFCOUNT]"); | |
838 | ||
839 | sv = SvRV(svz); | |
840 | ||
29569577 | 841 | if (items == 1) |
14a976d6 | 842 | XSRETURN_IV(SvREFCNT(sv) - 1); /* Minus the ref created for us. */ |
29569577 | 843 | else if (items == 2) { |
14a976d6 | 844 | /* I hope you really know what you are doing. */ |
29569577 JH |
845 | SvREFCNT(sv) = SvIV(ST(1)); |
846 | XSRETURN_IV(SvREFCNT(sv)); | |
847 | } | |
14a976d6 | 848 | XSRETURN_UNDEF; /* Can't happen. */ |
29569577 JH |
849 | } |
850 | ||
f044d0d1 | 851 | XS(XS_Internals_hv_clear_placehold) |
dfd4ef2f | 852 | { |
97aff369 | 853 | dVAR; |
dfd4ef2f | 854 | dXSARGS; |
6867be6d | 855 | |
80b6a949 | 856 | if (items != 1 || !SvROK(ST(0))) |
afa74d42 | 857 | croak_xs_usage(cv, "hv"); |
c4420975 | 858 | else { |
ef8f7699 | 859 | HV * const hv = MUTABLE_HV(SvRV(ST(0))); |
c4420975 AL |
860 | hv_clear_placeholders(hv); |
861 | XSRETURN(0); | |
862 | } | |
dfd4ef2f | 863 | } |
39f7a870 JH |
864 | |
865 | XS(XS_PerlIO_get_layers) | |
866 | { | |
97aff369 | 867 | dVAR; |
39f7a870 JH |
868 | dXSARGS; |
869 | if (items < 1 || items % 2 == 0) | |
afa74d42 | 870 | croak_xs_usage(cv, "filehandle[,args]"); |
5fef3b4a | 871 | #ifdef USE_PERLIO |
39f7a870 JH |
872 | { |
873 | SV * sv; | |
874 | GV * gv; | |
875 | IO * io; | |
876 | bool input = TRUE; | |
877 | bool details = FALSE; | |
878 | ||
879 | if (items > 1) { | |
c4420975 | 880 | SV * const *svp; |
39f7a870 | 881 | for (svp = MARK + 2; svp <= SP; svp += 2) { |
c4420975 AL |
882 | SV * const * const varp = svp; |
883 | SV * const * const valp = svp + 1; | |
39f7a870 | 884 | STRLEN klen; |
c4420975 | 885 | const char * const key = SvPV_const(*varp, klen); |
39f7a870 JH |
886 | |
887 | switch (*key) { | |
888 | case 'i': | |
889 | if (klen == 5 && memEQ(key, "input", 5)) { | |
890 | input = SvTRUE(*valp); | |
891 | break; | |
892 | } | |
893 | goto fail; | |
894 | case 'o': | |
895 | if (klen == 6 && memEQ(key, "output", 6)) { | |
896 | input = !SvTRUE(*valp); | |
897 | break; | |
898 | } | |
899 | goto fail; | |
900 | case 'd': | |
901 | if (klen == 7 && memEQ(key, "details", 7)) { | |
902 | details = SvTRUE(*valp); | |
903 | break; | |
904 | } | |
905 | goto fail; | |
906 | default: | |
907 | fail: | |
908 | Perl_croak(aTHX_ | |
909 | "get_layers: unknown argument '%s'", | |
910 | key); | |
911 | } | |
912 | } | |
913 | ||
914 | SP -= (items - 1); | |
915 | } | |
916 | ||
917 | sv = POPs; | |
159b6efe | 918 | gv = MUTABLE_GV(sv); |
39f7a870 JH |
919 | |
920 | if (!isGV(sv)) { | |
921 | if (SvROK(sv) && isGV(SvRV(sv))) | |
159b6efe | 922 | gv = MUTABLE_GV(SvRV(sv)); |
671d49be | 923 | else if (SvPOKp(sv)) |
f776e3cd | 924 | gv = gv_fetchsv(sv, 0, SVt_PVIO); |
39f7a870 JH |
925 | } |
926 | ||
927 | if (gv && (io = GvIO(gv))) { | |
c4420975 | 928 | AV* const av = PerlIO_get_layers(aTHX_ input ? |
39f7a870 JH |
929 | IoIFP(io) : IoOFP(io)); |
930 | I32 i; | |
c4420975 | 931 | const I32 last = av_len(av); |
39f7a870 JH |
932 | I32 nitem = 0; |
933 | ||
934 | for (i = last; i >= 0; i -= 3) { | |
c4420975 AL |
935 | SV * const * const namsvp = av_fetch(av, i - 2, FALSE); |
936 | SV * const * const argsvp = av_fetch(av, i - 1, FALSE); | |
937 | SV * const * const flgsvp = av_fetch(av, i, FALSE); | |
39f7a870 | 938 | |
c4420975 AL |
939 | const bool namok = namsvp && *namsvp && SvPOK(*namsvp); |
940 | const bool argok = argsvp && *argsvp && SvPOK(*argsvp); | |
941 | const bool flgok = flgsvp && *flgsvp && SvIOK(*flgsvp); | |
39f7a870 JH |
942 | |
943 | if (details) { | |
92e45a3e NC |
944 | /* Indents of 5? Yuck. */ |
945 | /* We know that PerlIO_get_layers creates a new SV for | |
946 | the name and flags, so we can just take a reference | |
947 | and "steal" it when we free the AV below. */ | |
ec3bab8e | 948 | XPUSHs(namok |
92e45a3e | 949 | ? sv_2mortal(SvREFCNT_inc_simple_NN(*namsvp)) |
ec3bab8e NC |
950 | : &PL_sv_undef); |
951 | XPUSHs(argok | |
92e45a3e NC |
952 | ? newSVpvn_flags(SvPVX_const(*argsvp), |
953 | SvCUR(*argsvp), | |
954 | (SvUTF8(*argsvp) ? SVf_UTF8 : 0) | |
955 | | SVs_TEMP) | |
956 | : &PL_sv_undef); | |
96ccaf53 | 957 | XPUSHs(flgok |
92e45a3e | 958 | ? sv_2mortal(SvREFCNT_inc_simple_NN(*flgsvp)) |
ec3bab8e | 959 | : &PL_sv_undef); |
39f7a870 JH |
960 | nitem += 3; |
961 | } | |
962 | else { | |
963 | if (namok && argok) | |
1eb9e81d | 964 | XPUSHs(sv_2mortal(Perl_newSVpvf(aTHX_ "%"SVf"(%"SVf")", |
be2597df | 965 | SVfARG(*namsvp), |
1eb9e81d | 966 | SVfARG(*argsvp)))); |
39f7a870 | 967 | else if (namok) |
92e45a3e | 968 | XPUSHs(sv_2mortal(SvREFCNT_inc_simple_NN(*namsvp))); |
39f7a870 JH |
969 | else |
970 | XPUSHs(&PL_sv_undef); | |
971 | nitem++; | |
972 | if (flgok) { | |
c4420975 | 973 | const IV flags = SvIVX(*flgsvp); |
39f7a870 JH |
974 | |
975 | if (flags & PERLIO_F_UTF8) { | |
84bafc02 | 976 | XPUSHs(newSVpvs_flags("utf8", SVs_TEMP)); |
39f7a870 JH |
977 | nitem++; |
978 | } | |
979 | } | |
980 | } | |
981 | } | |
982 | ||
983 | SvREFCNT_dec(av); | |
984 | ||
985 | XSRETURN(nitem); | |
986 | } | |
987 | } | |
5fef3b4a | 988 | #endif |
39f7a870 JH |
989 | |
990 | XSRETURN(0); | |
991 | } | |
992 | ||
9a7034eb | 993 | XS(XS_Internals_hash_seed) |
c910b28a | 994 | { |
97aff369 | 995 | dVAR; |
c85d3f85 NC |
996 | /* Using dXSARGS would also have dITEM and dSP, |
997 | * which define 2 unused local variables. */ | |
557b887a | 998 | dAXMARK; |
53c1dcc0 | 999 | PERL_UNUSED_ARG(cv); |
ad73156c | 1000 | PERL_UNUSED_VAR(mark); |
81eaca17 | 1001 | XSRETURN_UV(PERL_HASH_SEED); |
c910b28a JH |
1002 | } |
1003 | ||
008fb0c0 | 1004 | XS(XS_Internals_rehash_seed) |
8e90d776 | 1005 | { |
97aff369 | 1006 | dVAR; |
8e90d776 NC |
1007 | /* Using dXSARGS would also have dITEM and dSP, |
1008 | * which define 2 unused local variables. */ | |
557b887a | 1009 | dAXMARK; |
53c1dcc0 | 1010 | PERL_UNUSED_ARG(cv); |
ad73156c | 1011 | PERL_UNUSED_VAR(mark); |
008fb0c0 | 1012 | XSRETURN_UV(PL_rehash_seed); |
8e90d776 NC |
1013 | } |
1014 | ||
05619474 NC |
1015 | XS(XS_Internals_HvREHASH) /* Subject to change */ |
1016 | { | |
97aff369 | 1017 | dVAR; |
05619474 | 1018 | dXSARGS; |
93c51217 | 1019 | PERL_UNUSED_ARG(cv); |
05619474 | 1020 | if (SvROK(ST(0))) { |
ef8f7699 | 1021 | const HV * const hv = (const HV *) SvRV(ST(0)); |
05619474 NC |
1022 | if (items == 1 && SvTYPE(hv) == SVt_PVHV) { |
1023 | if (HvREHASH(hv)) | |
1024 | XSRETURN_YES; | |
1025 | else | |
1026 | XSRETURN_NO; | |
1027 | } | |
1028 | } | |
1029 | Perl_croak(aTHX_ "Internals::HvREHASH $hashref"); | |
1030 | } | |
241d1a3b | 1031 | |
80305961 YO |
1032 | XS(XS_re_is_regexp) |
1033 | { | |
1034 | dVAR; | |
1035 | dXSARGS; | |
f7e71195 AB |
1036 | PERL_UNUSED_VAR(cv); |
1037 | ||
80305961 | 1038 | if (items != 1) |
afa74d42 | 1039 | croak_xs_usage(cv, "sv"); |
f7e71195 | 1040 | |
f7e71195 AB |
1041 | if (SvRXOK(ST(0))) { |
1042 | XSRETURN_YES; | |
1043 | } else { | |
1044 | XSRETURN_NO; | |
80305961 YO |
1045 | } |
1046 | } | |
1047 | ||
192b9cd1 | 1048 | XS(XS_re_regnames_count) |
80305961 | 1049 | { |
192b9cd1 AB |
1050 | REGEXP *rx = PL_curpm ? PM_GETRE(PL_curpm) : NULL; |
1051 | SV * ret; | |
80305961 YO |
1052 | dVAR; |
1053 | dXSARGS; | |
192b9cd1 AB |
1054 | |
1055 | if (items != 0) | |
afa74d42 | 1056 | croak_xs_usage(cv, ""); |
192b9cd1 AB |
1057 | |
1058 | SP -= items; | |
fdae9473 | 1059 | PUTBACK; |
192b9cd1 AB |
1060 | |
1061 | if (!rx) | |
1062 | XSRETURN_UNDEF; | |
1063 | ||
1064 | ret = CALLREG_NAMED_BUFF_COUNT(rx); | |
1065 | ||
1066 | SPAGAIN; | |
fdae9473 NC |
1067 | PUSHs(ret ? sv_2mortal(ret) : &PL_sv_undef); |
1068 | XSRETURN(1); | |
192b9cd1 AB |
1069 | } |
1070 | ||
1071 | XS(XS_re_regname) | |
1072 | { | |
1073 | dVAR; | |
1074 | dXSARGS; | |
1075 | REGEXP * rx; | |
1076 | U32 flags; | |
1077 | SV * ret; | |
1078 | ||
28d8d7f4 | 1079 | if (items < 1 || items > 2) |
afa74d42 | 1080 | croak_xs_usage(cv, "name[, all ]"); |
192b9cd1 | 1081 | |
80305961 | 1082 | SP -= items; |
fdae9473 | 1083 | PUTBACK; |
80305961 | 1084 | |
192b9cd1 AB |
1085 | rx = PL_curpm ? PM_GETRE(PL_curpm) : NULL; |
1086 | ||
1087 | if (!rx) | |
1088 | XSRETURN_UNDEF; | |
1089 | ||
1090 | if (items == 2 && SvTRUE(ST(1))) { | |
f1b875a0 | 1091 | flags = RXapif_ALL; |
192b9cd1 | 1092 | } else { |
f1b875a0 | 1093 | flags = RXapif_ONE; |
80305961 | 1094 | } |
f1b875a0 | 1095 | ret = CALLREG_NAMED_BUFF_FETCH(rx, ST(0), (flags | RXapif_REGNAME)); |
192b9cd1 | 1096 | |
fdae9473 NC |
1097 | SPAGAIN; |
1098 | PUSHs(ret ? sv_2mortal(ret) : &PL_sv_undef); | |
1099 | XSRETURN(1); | |
80305961 YO |
1100 | } |
1101 | ||
192b9cd1 | 1102 | |
80305961 YO |
1103 | XS(XS_re_regnames) |
1104 | { | |
192b9cd1 | 1105 | dVAR; |
80305961 | 1106 | dXSARGS; |
192b9cd1 AB |
1107 | REGEXP * rx; |
1108 | U32 flags; | |
1109 | SV *ret; | |
1110 | AV *av; | |
1111 | I32 length; | |
1112 | I32 i; | |
1113 | SV **entry; | |
1114 | ||
1115 | if (items > 1) | |
afa74d42 | 1116 | croak_xs_usage(cv, "[all]"); |
192b9cd1 AB |
1117 | |
1118 | rx = PL_curpm ? PM_GETRE(PL_curpm) : NULL; | |
1119 | ||
1120 | if (!rx) | |
1121 | XSRETURN_UNDEF; | |
1122 | ||
1123 | if (items == 1 && SvTRUE(ST(0))) { | |
f1b875a0 | 1124 | flags = RXapif_ALL; |
192b9cd1 | 1125 | } else { |
f1b875a0 | 1126 | flags = RXapif_ONE; |
192b9cd1 AB |
1127 | } |
1128 | ||
80305961 | 1129 | SP -= items; |
fdae9473 | 1130 | PUTBACK; |
80305961 | 1131 | |
f1b875a0 | 1132 | ret = CALLREG_NAMED_BUFF_ALL(rx, (flags | RXapif_REGNAMES)); |
192b9cd1 AB |
1133 | |
1134 | SPAGAIN; | |
1135 | ||
192b9cd1 AB |
1136 | if (!ret) |
1137 | XSRETURN_UNDEF; | |
1138 | ||
502c6561 | 1139 | av = MUTABLE_AV(SvRV(ret)); |
192b9cd1 AB |
1140 | length = av_len(av); |
1141 | ||
1142 | for (i = 0; i <= length; i++) { | |
1143 | entry = av_fetch(av, i, FALSE); | |
1144 | ||
1145 | if (!entry) | |
1146 | Perl_croak(aTHX_ "NULL array element in re::regnames()"); | |
1147 | ||
ec83ea38 | 1148 | mXPUSHs(SvREFCNT_inc_simple_NN(*entry)); |
80305961 | 1149 | } |
ec83ea38 MHM |
1150 | |
1151 | SvREFCNT_dec(ret); | |
1152 | ||
192b9cd1 AB |
1153 | PUTBACK; |
1154 | return; | |
80305961 YO |
1155 | } |
1156 | ||
192c1e27 JH |
1157 | XS(XS_re_regexp_pattern) |
1158 | { | |
1159 | dVAR; | |
1160 | dXSARGS; | |
1161 | REGEXP *re; | |
192c1e27 JH |
1162 | |
1163 | if (items != 1) | |
afa74d42 | 1164 | croak_xs_usage(cv, "sv"); |
192c1e27 JH |
1165 | |
1166 | SP -= items; | |
1167 | ||
1168 | /* | |
1169 | Checks if a reference is a regex or not. If the parameter is | |
1170 | not a ref, or is not the result of a qr// then returns false | |
1171 | in scalar context and an empty list in list context. | |
1172 | Otherwise in list context it returns the pattern and the | |
1173 | modifiers, in scalar context it returns the pattern just as it | |
1174 | would if the qr// was stringified normally, regardless as | |
1175 | to the class of the variable and any strigification overloads | |
1176 | on the object. | |
1177 | */ | |
1178 | ||
1179 | if ((re = SvRX(ST(0)))) /* assign deliberate */ | |
1180 | { | |
22c985d5 | 1181 | /* Houston, we have a regex! */ |
192c1e27 | 1182 | SV *pattern; |
192c1e27 JH |
1183 | |
1184 | if ( GIMME_V == G_ARRAY ) { | |
9de15fec KW |
1185 | STRLEN left = 0; |
1186 | char reflags[sizeof(INT_PAT_MODS) + 1]; /* The +1 is for the charset | |
1187 | modifier */ | |
69af1167 SH |
1188 | const char *fptr; |
1189 | char ch; | |
1190 | U16 match_flags; | |
1191 | ||
192c1e27 JH |
1192 | /* |
1193 | we are in list context so stringify | |
1194 | the modifiers that apply. We ignore "negative | |
1195 | modifiers" in this scenario. | |
1196 | */ | |
1197 | ||
9de15fec KW |
1198 | if (RX_EXTFLAGS(re) & RXf_PMf_LOCALE) { |
1199 | reflags[left++] = LOCALE_PAT_MOD; | |
1200 | } | |
1201 | else if (RX_EXTFLAGS(re) & RXf_PMf_UNICODE) { | |
1202 | reflags[left++] = UNICODE_PAT_MOD; | |
1203 | } | |
69af1167 SH |
1204 | fptr = INT_PAT_MODS; |
1205 | match_flags = (U16)((RX_EXTFLAGS(re) & PMf_COMPILETIME) | |
192c1e27 JH |
1206 | >> RXf_PMf_STD_PMMOD_SHIFT); |
1207 | ||
1208 | while((ch = *fptr++)) { | |
1209 | if(match_flags & 1) { | |
1210 | reflags[left++] = ch; | |
1211 | } | |
1212 | match_flags >>= 1; | |
1213 | } | |
1214 | ||
fb632ce3 NC |
1215 | pattern = newSVpvn_flags(RX_PRECOMP(re),RX_PRELEN(re), |
1216 | (RX_UTF8(re) ? SVf_UTF8 : 0) | SVs_TEMP); | |
192c1e27 JH |
1217 | |
1218 | /* return the pattern and the modifiers */ | |
1219 | XPUSHs(pattern); | |
fb632ce3 | 1220 | XPUSHs(newSVpvn_flags(reflags, left, SVs_TEMP)); |
192c1e27 JH |
1221 | XSRETURN(2); |
1222 | } else { | |
1223 | /* Scalar, so use the string that Perl would return */ | |
1224 | /* return the pattern in (?msix:..) format */ | |
1225 | #if PERL_VERSION >= 11 | |
daba3364 | 1226 | pattern = sv_2mortal(newSVsv(MUTABLE_SV(re))); |
192c1e27 | 1227 | #else |
fb632ce3 NC |
1228 | pattern = newSVpvn_flags(RX_WRAPPED(re), RX_WRAPLEN(re), |
1229 | (RX_UTF8(re) ? SVf_UTF8 : 0) | SVs_TEMP); | |
192c1e27 JH |
1230 | #endif |
1231 | XPUSHs(pattern); | |
1232 | XSRETURN(1); | |
1233 | } | |
1234 | } else { | |
1235 | /* It ain't a regexp folks */ | |
1236 | if ( GIMME_V == G_ARRAY ) { | |
1237 | /* return the empty list */ | |
1238 | XSRETURN_UNDEF; | |
1239 | } else { | |
1240 | /* Because of the (?:..) wrapping involved in a | |
1241 | stringified pattern it is impossible to get a | |
1242 | result for a real regexp that would evaluate to | |
1243 | false. Therefore we can return PL_sv_no to signify | |
1244 | that the object is not a regex, this means that one | |
1245 | can say | |
1246 | ||
1247 | if (regex($might_be_a_regex) eq '(?:foo)') { } | |
1248 | ||
1249 | and not worry about undefined values. | |
1250 | */ | |
1251 | XSRETURN_NO; | |
1252 | } | |
1253 | } | |
1254 | /* NOT-REACHED */ | |
1255 | } | |
1256 | ||
eff5b9d5 NC |
1257 | struct xsub_details { |
1258 | const char *name; | |
1259 | XSUBADDR_t xsub; | |
1260 | const char *proto; | |
1261 | }; | |
1262 | ||
1263 | struct xsub_details details[] = { | |
1264 | {"UNIVERSAL::isa", XS_UNIVERSAL_isa, NULL}, | |
1265 | {"UNIVERSAL::can", XS_UNIVERSAL_can, NULL}, | |
1266 | {"UNIVERSAL::DOES", XS_UNIVERSAL_DOES, NULL}, | |
1267 | {"UNIVERSAL::VERSION", XS_UNIVERSAL_VERSION, NULL}, | |
1268 | {"version::()", XS_version_noop, NULL}, | |
1269 | {"version::new", XS_version_new, NULL}, | |
1270 | {"version::parse", XS_version_new, NULL}, | |
1271 | {"version::(\"\"", XS_version_stringify, NULL}, | |
1272 | {"version::stringify", XS_version_stringify, NULL}, | |
1273 | {"version::(0+", XS_version_numify, NULL}, | |
1274 | {"version::numify", XS_version_numify, NULL}, | |
1275 | {"version::normal", XS_version_normal, NULL}, | |
1276 | {"version::(cmp", XS_version_vcmp, NULL}, | |
1277 | {"version::(<=>", XS_version_vcmp, NULL}, | |
1278 | {"version::vcmp", XS_version_vcmp, NULL}, | |
1279 | {"version::(bool", XS_version_boolean, NULL}, | |
1280 | {"version::boolean", XS_version_boolean, NULL}, | |
1281 | {"version::(nomethod", XS_version_noop, NULL}, | |
1282 | {"version::noop", XS_version_noop, NULL}, | |
1283 | {"version::is_alpha", XS_version_is_alpha, NULL}, | |
1284 | {"version::qv", XS_version_qv, NULL}, | |
1285 | {"version::declare", XS_version_qv, NULL}, | |
1286 | {"version::is_qv", XS_version_is_qv, NULL}, | |
1287 | {"utf8::is_utf8", XS_utf8_is_utf8, NULL}, | |
1288 | {"utf8::valid", XS_utf8_valid, NULL}, | |
1289 | {"utf8::encode", XS_utf8_encode, NULL}, | |
1290 | {"utf8::decode", XS_utf8_decode, NULL}, | |
1291 | {"utf8::upgrade", XS_utf8_upgrade, NULL}, | |
1292 | {"utf8::downgrade", XS_utf8_downgrade, NULL}, | |
1293 | {"utf8::native_to_unicode", XS_utf8_native_to_unicode, NULL}, | |
1294 | {"utf8::unicode_to_native", XS_utf8_unicode_to_native, NULL}, | |
1295 | {"Internals::SvREADONLY", XS_Internals_SvREADONLY, "\\[$%@];$"}, | |
1296 | {"Internals::SvREFCNT", XS_Internals_SvREFCNT, "\\[$%@];$"}, | |
1297 | {"Internals::hv_clear_placeholders", XS_Internals_hv_clear_placehold, "\\%"}, | |
1298 | {"PerlIO::get_layers", XS_PerlIO_get_layers, "*;@"}, | |
1299 | {"Internals::hash_seed", XS_Internals_hash_seed, ""}, | |
1300 | {"Internals::rehash_seed", XS_Internals_rehash_seed, ""}, | |
1301 | {"Internals::HvREHASH", XS_Internals_HvREHASH, "\\%"}, | |
1302 | {"re::is_regexp", XS_re_is_regexp, "$"}, | |
1303 | {"re::regname", XS_re_regname, ";$$"}, | |
1304 | {"re::regnames", XS_re_regnames, ";$"}, | |
1305 | {"re::regnames_count", XS_re_regnames_count, ""}, | |
1306 | {"re::regexp_pattern", XS_re_regexp_pattern, "$"}, | |
eff5b9d5 NC |
1307 | }; |
1308 | ||
1309 | void | |
1310 | Perl_boot_core_UNIVERSAL(pTHX) | |
1311 | { | |
1312 | dVAR; | |
1313 | static const char file[] = __FILE__; | |
1314 | struct xsub_details *xsub = details; | |
1315 | const struct xsub_details *end | |
1316 | = details + sizeof(details) / sizeof(details[0]); | |
1317 | ||
1318 | do { | |
1319 | newXS_flags(xsub->name, xsub->xsub, file, xsub->proto, 0); | |
1320 | } while (++xsub < end); | |
1321 | ||
1322 | /* register the overloading (type 'A') magic */ | |
1323 | PL_amagic_generation++; | |
1324 | ||
1325 | /* Providing a Regexp::DESTROY fixes #21347. See test in t/op/ref.t */ | |
1326 | CvFILE(newCONSTSUB(get_hv("Regexp::", GV_ADD), "DESTROY", NULL)) | |
1327 | = (char *)file; | |
1328 | } | |
80305961 | 1329 | |
241d1a3b NC |
1330 | /* |
1331 | * Local variables: | |
1332 | * c-indentation-style: bsd | |
1333 | * c-basic-offset: 4 | |
1334 | * indent-tabs-mode: t | |
1335 | * End: | |
1336 | * | |
37442d52 RGS |
1337 | * ex: set ts=8 sts=4 sw=4 noet: |
1338 | */ |