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, |
fdf8c088 | 4 | * 2005, 2006, 2007 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 AT |
11 | /* |
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 story | |
15 | */ | |
16 | ||
166f8a29 DM |
17 | /* This file contains the code that implements the functions in Perl's |
18 | * UNIVERSAL package, such as UNIVERSAL->can(). | |
19 | */ | |
20 | ||
6d4a7be2 | 21 | #include "EXTERN.h" |
864dbfa3 | 22 | #define PERL_IN_UNIVERSAL_C |
6d4a7be2 | 23 | #include "perl.h" |
6d4a7be2 | 24 | |
39f7a870 JH |
25 | #ifdef USE_PERLIO |
26 | #include "perliol.h" /* For the PERLIO_F_XXX */ | |
27 | #endif | |
28 | ||
6d4a7be2 | 29 | /* |
30 | * Contributed by Graham Barr <Graham.Barr@tiuk.ti.com> | |
31 | * The main guts of traverse_isa was actually copied from gv_fetchmeth | |
32 | */ | |
33 | ||
a9ec700e | 34 | STATIC bool |
34692224 | 35 | S_isa_lookup(pTHX_ HV *stash, const char *name, const HV* const name_stash, |
301daebc | 36 | int len, int level) |
6d4a7be2 | 37 | { |
97aff369 | 38 | dVAR; |
6d4a7be2 | 39 | AV* av; |
40 | GV* gv; | |
41 | GV** gvp; | |
5c284bb0 | 42 | HV* hv = NULL; |
c445ea15 | 43 | SV* subgen = NULL; |
bfcb3514 | 44 | const char *hvname; |
6d4a7be2 | 45 | |
301daebc MS |
46 | /* A stash/class can go by many names (ie. User == main::User), so |
47 | we compare the stash itself just in case */ | |
34692224 | 48 | if (name_stash && ((const HV *)stash == name_stash)) |
a9ec700e | 49 | return TRUE; |
6d4a7be2 | 50 | |
bfcb3514 NC |
51 | hvname = HvNAME_get(stash); |
52 | ||
53 | if (strEQ(hvname, name)) | |
a9ec700e | 54 | return TRUE; |
6d4a7be2 | 55 | |
a1d407e8 | 56 | if (strEQ(name, "UNIVERSAL")) |
a9ec700e | 57 | return TRUE; |
a1d407e8 | 58 | |
6d4a7be2 | 59 | if (level > 100) |
46e4b22b | 60 | Perl_croak(aTHX_ "Recursive inheritance detected in package '%s'", |
bfcb3514 | 61 | hvname); |
6d4a7be2 | 62 | |
017a3ce5 | 63 | gvp = (GV**)hv_fetchs(stash, "::ISA::CACHE::", FALSE); |
6d4a7be2 | 64 | |
9e0d86f8 | 65 | if (gvp && (gv = *gvp) && isGV_with_GP(gv) && (subgen = GvSV(gv)) |
46e4b22b GS |
66 | && (hv = GvHV(gv))) |
67 | { | |
eb160463 | 68 | if (SvIV(subgen) == (IV)PL_sub_generation) { |
7452cf6a | 69 | SV** const svp = (SV**)hv_fetch(hv, name, len, FALSE); |
34692224 AL |
70 | if (svp) { |
71 | SV * const sv = *svp; | |
17bcfd59 | 72 | #ifdef DEBUGGING |
34692224 AL |
73 | if (sv != &PL_sv_undef) |
74 | DEBUG_o( Perl_deb(aTHX_ "Using cached ISA %s for package %s\n", | |
75 | name, hvname) ); | |
17bcfd59 | 76 | #endif |
a9ec700e | 77 | return (sv == &PL_sv_yes); |
46e4b22b GS |
78 | } |
79 | } | |
80 | else { | |
81 | DEBUG_o( Perl_deb(aTHX_ "ISA Cache in package %s is stale\n", | |
bfcb3514 | 82 | hvname) ); |
46e4b22b GS |
83 | hv_clear(hv); |
84 | sv_setiv(subgen, PL_sub_generation); | |
85 | } | |
6d4a7be2 | 86 | } |
87 | ||
017a3ce5 | 88 | gvp = (GV**)hv_fetchs(stash, "ISA", FALSE); |
46e4b22b | 89 | |
9e0d86f8 | 90 | if (gvp && (gv = *gvp) && isGV_with_GP(gv) && (av = GvAV(gv))) { |
46e4b22b | 91 | if (!hv || !subgen) { |
017a3ce5 | 92 | gvp = (GV**)hv_fetchs(stash, "::ISA::CACHE::", TRUE); |
6d4a7be2 | 93 | |
94 | gv = *gvp; | |
95 | ||
96 | if (SvTYPE(gv) != SVt_PVGV) | |
97 | gv_init(gv, stash, "::ISA::CACHE::", 14, TRUE); | |
98 | ||
46e4b22b GS |
99 | if (!hv) |
100 | hv = GvHVn(gv); | |
101 | if (!subgen) { | |
102 | subgen = newSViv(PL_sub_generation); | |
103 | GvSV(gv) = subgen; | |
104 | } | |
6d4a7be2 | 105 | } |
46e4b22b | 106 | if (hv) { |
6d4a7be2 | 107 | SV** svp = AvARRAY(av); |
93965878 NIS |
108 | /* NOTE: No support for tied ISA */ |
109 | I32 items = AvFILLp(av) + 1; | |
6d4a7be2 | 110 | while (items--) { |
c4420975 | 111 | SV* const sv = *svp++; |
da51bb9b | 112 | HV* const basestash = gv_stashsv(sv, 0); |
6d4a7be2 | 113 | if (!basestash) { |
599cee73 | 114 | if (ckWARN(WARN_MISC)) |
9014280d | 115 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), |
bfcb3514 | 116 | "Can't locate package %"SVf" for @%s::ISA", |
be2597df | 117 | SVfARG(sv), hvname); |
6d4a7be2 | 118 | continue; |
119 | } | |
a9ec700e | 120 | if (isa_lookup(basestash, name, name_stash, len, level + 1)) { |
3280af22 | 121 | (void)hv_store(hv,name,len,&PL_sv_yes,0); |
a9ec700e | 122 | return TRUE; |
6d4a7be2 | 123 | } |
124 | } | |
3280af22 | 125 | (void)hv_store(hv,name,len,&PL_sv_no,0); |
6d4a7be2 | 126 | } |
127 | } | |
a9ec700e | 128 | return FALSE; |
6d4a7be2 | 129 | } |
130 | ||
954c1994 | 131 | /* |
ccfc67b7 JH |
132 | =head1 SV Manipulation Functions |
133 | ||
954c1994 GS |
134 | =for apidoc sv_derived_from |
135 | ||
6885da0e | 136 | Returns a boolean indicating whether the SV is derived from the specified class |
137 | I<at the C level>. To check derivation at the Perl level, call C<isa()> as a | |
138 | normal Perl method. | |
954c1994 GS |
139 | |
140 | =cut | |
141 | */ | |
142 | ||
55497cff | 143 | bool |
864dbfa3 | 144 | Perl_sv_derived_from(pTHX_ SV *sv, const char *name) |
55497cff | 145 | { |
97aff369 | 146 | dVAR; |
0b6f4f5c | 147 | HV *stash; |
46e4b22b | 148 | |
5b295bef | 149 | SvGETMAGIC(sv); |
55497cff | 150 | |
151 | if (SvROK(sv)) { | |
0b6f4f5c | 152 | const char *type; |
55497cff | 153 | sv = SvRV(sv); |
154 | type = sv_reftype(sv,0); | |
0b6f4f5c AL |
155 | if (type && strEQ(type,name)) |
156 | return TRUE; | |
157 | stash = SvOBJECT(sv) ? SvSTASH(sv) : NULL; | |
55497cff | 158 | } |
159 | else { | |
da51bb9b | 160 | stash = gv_stashsv(sv, 0); |
55497cff | 161 | } |
46e4b22b | 162 | |
0b6f4f5c | 163 | if (stash) { |
da51bb9b | 164 | HV * const name_stash = gv_stashpv(name, 0); |
a9ec700e | 165 | return isa_lookup(stash, name, name_stash, strlen(name), 0); |
0b6f4f5c AL |
166 | } |
167 | else | |
168 | return FALSE; | |
301daebc | 169 | |
55497cff | 170 | } |
171 | ||
cbc021f9 | 172 | /* |
173 | =for apidoc sv_does | |
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 |
184 | Perl_sv_does(pTHX_ SV *sv, const char *name) | |
185 | { | |
186 | const char *classname; | |
187 | bool does_it; | |
188 | ||
189 | dSP; | |
190 | ENTER; | |
191 | SAVETMPS; | |
192 | ||
193 | SvGETMAGIC(sv); | |
194 | ||
195 | if (!SvOK(sv) || !(SvROK(sv) || (SvPOK(sv) && SvCUR(sv)) | |
196 | || (SvGMAGICAL(sv) && SvPOKp(sv) && SvCUR(sv)))) | |
197 | return FALSE; | |
198 | ||
199 | if (sv_isobject(sv)) { | |
200 | classname = sv_reftype(SvRV(sv),TRUE); | |
201 | } else { | |
202 | classname = SvPV(sv,PL_na); | |
203 | } | |
204 | ||
205 | if (strEQ(name,classname)) | |
206 | return TRUE; | |
207 | ||
208 | PUSHMARK(SP); | |
209 | XPUSHs(sv); | |
210 | XPUSHs(sv_2mortal(newSVpv(name, 0))); | |
211 | PUTBACK; | |
212 | ||
213 | call_method("isa", G_SCALAR); | |
214 | SPAGAIN; | |
215 | ||
216 | does_it = SvTRUE( TOPs ); | |
217 | FREETMPS; | |
218 | LEAVE; | |
219 | ||
220 | return does_it; | |
221 | } | |
222 | ||
80305961 YO |
223 | regexp * |
224 | Perl_get_re_arg( pTHX_ SV *sv, U32 flags, MAGIC **mgp) { | |
225 | MAGIC *mg; | |
226 | if (sv) { | |
227 | if (SvMAGICAL(sv)) | |
228 | mg_get(sv); | |
229 | if (SvROK(sv) && | |
230 | (sv = (SV*)SvRV(sv)) && /* assign deliberate */ | |
231 | SvTYPE(sv) == SVt_PVMG && | |
232 | (mg = mg_find(sv, PERL_MAGIC_qr))) /* assign deliberate */ | |
233 | { | |
234 | if (mgp) *mgp = mg; | |
235 | return (regexp *)mg->mg_obj; | |
236 | } | |
237 | } | |
238 | if (mgp) *mgp = NULL; | |
239 | return ((flags && PL_curpm) ? PM_GETRE(PL_curpm) : NULL); | |
240 | } | |
241 | ||
242 | ||
27da23d5 JH |
243 | PERL_XS_EXPORT_C void XS_UNIVERSAL_isa(pTHX_ CV *cv); |
244 | PERL_XS_EXPORT_C void XS_UNIVERSAL_can(pTHX_ CV *cv); | |
cbc021f9 | 245 | PERL_XS_EXPORT_C void XS_UNIVERSAL_DOES(pTHX_ CV *cv); |
27da23d5 | 246 | PERL_XS_EXPORT_C void XS_UNIVERSAL_VERSION(pTHX_ CV *cv); |
439cb1c4 JP |
247 | XS(XS_version_new); |
248 | XS(XS_version_stringify); | |
249 | XS(XS_version_numify); | |
9137345a | 250 | XS(XS_version_normal); |
439cb1c4 JP |
251 | XS(XS_version_vcmp); |
252 | XS(XS_version_boolean); | |
2dfd8427 AL |
253 | #ifdef HASATTRIBUTE_NORETURN |
254 | XS(XS_version_noop) __attribute__noreturn__; | |
255 | #else | |
439cb1c4 | 256 | XS(XS_version_noop); |
2dfd8427 | 257 | #endif |
c8d69e4a | 258 | XS(XS_version_is_alpha); |
137d6fc0 | 259 | XS(XS_version_qv); |
8800c35a | 260 | XS(XS_utf8_is_utf8); |
1b026014 NIS |
261 | XS(XS_utf8_valid); |
262 | XS(XS_utf8_encode); | |
263 | XS(XS_utf8_decode); | |
264 | XS(XS_utf8_upgrade); | |
265 | XS(XS_utf8_downgrade); | |
266 | XS(XS_utf8_unicode_to_native); | |
267 | XS(XS_utf8_native_to_unicode); | |
29569577 JH |
268 | XS(XS_Internals_SvREADONLY); |
269 | XS(XS_Internals_SvREFCNT); | |
f044d0d1 | 270 | XS(XS_Internals_hv_clear_placehold); |
39f7a870 | 271 | XS(XS_PerlIO_get_layers); |
39cff0d9 | 272 | XS(XS_Regexp_DESTROY); |
9a7034eb | 273 | XS(XS_Internals_hash_seed); |
008fb0c0 | 274 | XS(XS_Internals_rehash_seed); |
05619474 | 275 | XS(XS_Internals_HvREHASH); |
e1234d8e | 276 | XS(XS_Internals_inc_sub_generation); |
80305961 YO |
277 | XS(XS_re_is_regexp); |
278 | XS(XS_re_regname); | |
279 | XS(XS_re_regnames); | |
280 | XS(XS_re_regnames_iterinit); | |
281 | XS(XS_re_regnames_iternext); | |
282 | XS(XS_re_regnames_count); | |
0cb96387 GS |
283 | |
284 | void | |
285 | Perl_boot_core_UNIVERSAL(pTHX) | |
286 | { | |
97aff369 | 287 | dVAR; |
157e3fc8 | 288 | static const char file[] = __FILE__; |
0cb96387 GS |
289 | |
290 | newXS("UNIVERSAL::isa", XS_UNIVERSAL_isa, file); | |
291 | newXS("UNIVERSAL::can", XS_UNIVERSAL_can, file); | |
cbc021f9 | 292 | newXS("UNIVERSAL::DOES", XS_UNIVERSAL_DOES, file); |
0cb96387 | 293 | newXS("UNIVERSAL::VERSION", XS_UNIVERSAL_VERSION, file); |
439cb1c4 | 294 | { |
ad63d80f JP |
295 | /* register the overloading (type 'A') magic */ |
296 | PL_amagic_generation++; | |
439cb1c4 | 297 | /* Make it findable via fetchmethod */ |
be2ebcad | 298 | newXS("version::()", XS_version_noop, file); |
439cb1c4 JP |
299 | newXS("version::new", XS_version_new, file); |
300 | newXS("version::(\"\"", XS_version_stringify, file); | |
301 | newXS("version::stringify", XS_version_stringify, file); | |
302 | newXS("version::(0+", XS_version_numify, file); | |
303 | newXS("version::numify", XS_version_numify, file); | |
9137345a | 304 | newXS("version::normal", XS_version_normal, file); |
439cb1c4 JP |
305 | newXS("version::(cmp", XS_version_vcmp, file); |
306 | newXS("version::(<=>", XS_version_vcmp, file); | |
307 | newXS("version::vcmp", XS_version_vcmp, file); | |
308 | newXS("version::(bool", XS_version_boolean, file); | |
309 | newXS("version::boolean", XS_version_boolean, file); | |
310 | newXS("version::(nomethod", XS_version_noop, file); | |
311 | newXS("version::noop", XS_version_noop, file); | |
c8d69e4a | 312 | newXS("version::is_alpha", XS_version_is_alpha, file); |
137d6fc0 | 313 | newXS("version::qv", XS_version_qv, file); |
439cb1c4 | 314 | } |
8800c35a | 315 | newXS("utf8::is_utf8", XS_utf8_is_utf8, file); |
1b026014 NIS |
316 | newXS("utf8::valid", XS_utf8_valid, file); |
317 | newXS("utf8::encode", XS_utf8_encode, file); | |
318 | newXS("utf8::decode", XS_utf8_decode, file); | |
319 | newXS("utf8::upgrade", XS_utf8_upgrade, file); | |
320 | newXS("utf8::downgrade", XS_utf8_downgrade, file); | |
321 | newXS("utf8::native_to_unicode", XS_utf8_native_to_unicode, file); | |
322 | newXS("utf8::unicode_to_native", XS_utf8_unicode_to_native, file); | |
29569577 JH |
323 | newXSproto("Internals::SvREADONLY",XS_Internals_SvREADONLY, file, "\\[$%@];$"); |
324 | newXSproto("Internals::SvREFCNT",XS_Internals_SvREFCNT, file, "\\[$%@];$"); | |
dfd4ef2f | 325 | newXSproto("Internals::hv_clear_placeholders", |
f044d0d1 | 326 | XS_Internals_hv_clear_placehold, file, "\\%"); |
9d569fce JH |
327 | newXSproto("PerlIO::get_layers", |
328 | XS_PerlIO_get_layers, file, "*;@"); | |
39cff0d9 | 329 | newXS("Regexp::DESTROY", XS_Regexp_DESTROY, file); |
9a7034eb | 330 | newXSproto("Internals::hash_seed",XS_Internals_hash_seed, file, ""); |
008fb0c0 | 331 | newXSproto("Internals::rehash_seed",XS_Internals_rehash_seed, file, ""); |
05619474 | 332 | newXSproto("Internals::HvREHASH", XS_Internals_HvREHASH, file, "\\%"); |
e1234d8e NC |
333 | newXSproto("Internals::inc_sub_generation",XS_Internals_inc_sub_generation, |
334 | file, ""); | |
80305961 YO |
335 | newXSproto("re::is_regexp", XS_re_is_regexp, file, "$"); |
336 | newXSproto("re::regname", XS_re_regname, file, ";$$$"); | |
337 | newXSproto("re::regnames", XS_re_regnames, file, ";$$"); | |
338 | newXSproto("re::regnames_iterinit", XS_re_regnames_iterinit, file, ";$"); | |
339 | newXSproto("re::regnames_iternext", XS_re_regnames_iternext, file, ";$$"); | |
340 | newXSproto("re::regnames_count", XS_re_regnames_count, file, ";$"); | |
0cb96387 GS |
341 | } |
342 | ||
55497cff | 343 | |
6d4a7be2 | 344 | XS(XS_UNIVERSAL_isa) |
345 | { | |
97aff369 | 346 | dVAR; |
6d4a7be2 | 347 | dXSARGS; |
58c0efa5 | 348 | PERL_UNUSED_ARG(cv); |
6d4a7be2 | 349 | |
350 | if (items != 2) | |
cea2e8a9 | 351 | Perl_croak(aTHX_ "Usage: UNIVERSAL::isa(reference, kind)"); |
c4420975 AL |
352 | else { |
353 | SV * const sv = ST(0); | |
354 | const char *name; | |
6d4a7be2 | 355 | |
c4420975 | 356 | SvGETMAGIC(sv); |
d3f7f2b2 | 357 | |
c4420975 AL |
358 | if (!SvOK(sv) || !(SvROK(sv) || (SvPOK(sv) && SvCUR(sv)) |
359 | || (SvGMAGICAL(sv) && SvPOKp(sv) && SvCUR(sv)))) | |
360 | XSRETURN_UNDEF; | |
f8f70380 | 361 | |
c4420975 | 362 | name = SvPV_nolen_const(ST(1)); |
6d4a7be2 | 363 | |
c4420975 AL |
364 | ST(0) = boolSV(sv_derived_from(sv, name)); |
365 | XSRETURN(1); | |
366 | } | |
6d4a7be2 | 367 | } |
368 | ||
6d4a7be2 | 369 | XS(XS_UNIVERSAL_can) |
370 | { | |
97aff369 | 371 | dVAR; |
6d4a7be2 | 372 | dXSARGS; |
373 | SV *sv; | |
6867be6d | 374 | const char *name; |
6d4a7be2 | 375 | SV *rv; |
6f08146e | 376 | HV *pkg = NULL; |
58c0efa5 | 377 | PERL_UNUSED_ARG(cv); |
6d4a7be2 | 378 | |
379 | if (items != 2) | |
cea2e8a9 | 380 | Perl_croak(aTHX_ "Usage: UNIVERSAL::can(object-ref, method)"); |
6d4a7be2 | 381 | |
382 | sv = ST(0); | |
f8f70380 | 383 | |
5b295bef | 384 | SvGETMAGIC(sv); |
d3f7f2b2 | 385 | |
253ecd6d RGS |
386 | if (!SvOK(sv) || !(SvROK(sv) || (SvPOK(sv) && SvCUR(sv)) |
387 | || (SvGMAGICAL(sv) && SvPOKp(sv) && SvCUR(sv)))) | |
f8f70380 GS |
388 | XSRETURN_UNDEF; |
389 | ||
0510663f | 390 | name = SvPV_nolen_const(ST(1)); |
3280af22 | 391 | rv = &PL_sv_undef; |
6d4a7be2 | 392 | |
46e4b22b | 393 | if (SvROK(sv)) { |
6f08146e | 394 | sv = (SV*)SvRV(sv); |
46e4b22b | 395 | if (SvOBJECT(sv)) |
6f08146e NIS |
396 | pkg = SvSTASH(sv); |
397 | } | |
398 | else { | |
da51bb9b | 399 | pkg = gv_stashsv(sv, 0); |
6f08146e NIS |
400 | } |
401 | ||
402 | if (pkg) { | |
c4420975 | 403 | GV * const gv = gv_fetchmethod_autoload(pkg, name, FALSE); |
dc848c6f | 404 | if (gv && isGV(gv)) |
405 | rv = sv_2mortal(newRV((SV*)GvCV(gv))); | |
6d4a7be2 | 406 | } |
407 | ||
408 | ST(0) = rv; | |
409 | XSRETURN(1); | |
410 | } | |
411 | ||
cbc021f9 | 412 | XS(XS_UNIVERSAL_DOES) |
413 | { | |
414 | dVAR; | |
415 | dXSARGS; | |
58c0efa5 | 416 | PERL_UNUSED_ARG(cv); |
cbc021f9 | 417 | |
418 | if (items != 2) | |
419 | Perl_croak(aTHX_ "Usage: invocant->does(kind)"); | |
420 | else { | |
421 | SV * const sv = ST(0); | |
422 | const char *name; | |
423 | ||
424 | name = SvPV_nolen_const(ST(1)); | |
425 | if (sv_does( sv, name )) | |
426 | XSRETURN_YES; | |
427 | ||
428 | XSRETURN_NO; | |
429 | } | |
430 | } | |
431 | ||
6d4a7be2 | 432 | XS(XS_UNIVERSAL_VERSION) |
433 | { | |
97aff369 | 434 | dVAR; |
6d4a7be2 | 435 | dXSARGS; |
436 | HV *pkg; | |
437 | GV **gvp; | |
438 | GV *gv; | |
439 | SV *sv; | |
e1ec3a88 | 440 | const char *undef; |
58c0efa5 | 441 | PERL_UNUSED_ARG(cv); |
6d4a7be2 | 442 | |
1571675a | 443 | if (SvROK(ST(0))) { |
6d4a7be2 | 444 | sv = (SV*)SvRV(ST(0)); |
1571675a | 445 | if (!SvOBJECT(sv)) |
cea2e8a9 | 446 | Perl_croak(aTHX_ "Cannot find version of an unblessed reference"); |
6d4a7be2 | 447 | pkg = SvSTASH(sv); |
448 | } | |
449 | else { | |
da51bb9b | 450 | pkg = gv_stashsv(ST(0), 0); |
6d4a7be2 | 451 | } |
452 | ||
4608196e | 453 | gvp = pkg ? (GV**)hv_fetchs(pkg, "VERSION", FALSE) : NULL; |
6d4a7be2 | 454 | |
0008872a | 455 | if (gvp && isGV(gv = *gvp) && (sv = GvSV(gv)) && SvOK(sv)) { |
c4420975 | 456 | SV * const nsv = sv_newmortal(); |
6d4a7be2 | 457 | sv_setsv(nsv, sv); |
458 | sv = nsv; | |
137d6fc0 | 459 | if ( !sv_derived_from(sv, "version")) |
ac0e6a2f | 460 | upg_version(sv, FALSE); |
c445ea15 | 461 | undef = NULL; |
6d4a7be2 | 462 | } |
463 | else { | |
3280af22 | 464 | sv = (SV*)&PL_sv_undef; |
6d4a7be2 | 465 | undef = "(undef)"; |
466 | } | |
467 | ||
1571675a | 468 | if (items > 1) { |
1571675a GS |
469 | SV *req = ST(1); |
470 | ||
62658f4d | 471 | if (undef) { |
bfcb3514 | 472 | if (pkg) { |
c4420975 | 473 | const char * const name = HvNAME_get(pkg); |
a3b680e6 | 474 | Perl_croak(aTHX_ |
bfcb3514 NC |
475 | "%s does not define $%s::VERSION--version check failed", |
476 | name, name); | |
477 | } else { | |
a3b680e6 AL |
478 | Perl_croak(aTHX_ |
479 | "%s defines neither package nor VERSION--version check failed", | |
0510663f | 480 | SvPVx_nolen_const(ST(0)) ); |
62658f4d PM |
481 | } |
482 | } | |
ad63d80f | 483 | |
137d6fc0 JP |
484 | if ( !sv_derived_from(req, "version")) { |
485 | /* req may very well be R/O, so create a new object */ | |
ac0e6a2f | 486 | req = sv_2mortal( new_version(req) ); |
137d6fc0 | 487 | } |
1571675a | 488 | |
ac0e6a2f RGS |
489 | if ( vcmp( req, sv ) > 0 ) { |
490 | if ( hv_exists((HV*)SvRV(req), "qv", 2 ) ) { | |
491 | Perl_croak(aTHX_ "%s version %"SVf" required--" | |
492 | "this is only version %"SVf"", HvNAME_get(pkg), | |
be2597df | 493 | SVfARG(vnormal(req)), |
be2597df | 494 | SVfARG(vnormal(sv))); |
ac0e6a2f RGS |
495 | } else { |
496 | Perl_croak(aTHX_ "%s version %"SVf" required--" | |
497 | "this is only version %"SVf"", HvNAME_get(pkg), | |
498 | SVfARG(vnumify(req)), | |
499 | SVfARG(vnumify(sv))); | |
500 | } | |
501 | } | |
502 | ||
2d8e6c8d | 503 | } |
6d4a7be2 | 504 | |
2b140d5b | 505 | if ( SvOK(sv) && sv_derived_from(sv, "version") ) { |
b38a9dc5 | 506 | ST(0) = vnumify(sv); |
13f8f398 JP |
507 | } else { |
508 | ST(0) = sv; | |
b38a9dc5 | 509 | } |
6d4a7be2 | 510 | |
511 | XSRETURN(1); | |
512 | } | |
513 | ||
439cb1c4 JP |
514 | XS(XS_version_new) |
515 | { | |
97aff369 | 516 | dVAR; |
439cb1c4 | 517 | dXSARGS; |
58c0efa5 | 518 | PERL_UNUSED_ARG(cv); |
129318bd | 519 | if (items > 3) |
439cb1c4 JP |
520 | Perl_croak(aTHX_ "Usage: version::new(class, version)"); |
521 | SP -= items; | |
522 | { | |
137d6fc0 JP |
523 | SV *vs = ST(1); |
524 | SV *rv; | |
c4420975 AL |
525 | const char * const classname = |
526 | sv_isobject(ST(0)) /* get the class if called as an object method */ | |
527 | ? HvNAME(SvSTASH(SvRV(ST(0)))) | |
528 | : (char *)SvPV_nolen(ST(0)); | |
9137345a | 529 | |
92dcf8ce JP |
530 | if ( items == 1 || vs == &PL_sv_undef ) { /* no param or explicit undef */ |
531 | /* create empty object */ | |
532 | vs = sv_newmortal(); | |
533 | sv_setpvn(vs,"",0); | |
9137345a JP |
534 | } |
535 | else if ( items == 3 ) { | |
536 | vs = sv_newmortal(); | |
cfd0369c | 537 | Perl_sv_setpvf(aTHX_ vs,"v%s",SvPV_nolen_const(ST(2))); |
129318bd | 538 | } |
439cb1c4 | 539 | |
137d6fc0 | 540 | rv = new_version(vs); |
0723351e | 541 | if ( strcmp(classname,"version") != 0 ) /* inherited new() */ |
da51bb9b | 542 | sv_bless(rv, gv_stashpv(classname, GV_ADD)); |
137d6fc0 JP |
543 | |
544 | PUSHs(sv_2mortal(rv)); | |
439cb1c4 JP |
545 | PUTBACK; |
546 | return; | |
547 | } | |
548 | } | |
549 | ||
550 | XS(XS_version_stringify) | |
551 | { | |
97aff369 | 552 | dVAR; |
41be1fbd | 553 | dXSARGS; |
58c0efa5 | 554 | PERL_UNUSED_ARG(cv); |
41be1fbd JH |
555 | if (items < 1) |
556 | Perl_croak(aTHX_ "Usage: version::stringify(lobj, ...)"); | |
557 | SP -= items; | |
558 | { | |
7452cf6a | 559 | SV * lobj; |
41be1fbd JH |
560 | |
561 | if (sv_derived_from(ST(0), "version")) { | |
9137345a | 562 | lobj = SvRV(ST(0)); |
41be1fbd JH |
563 | } |
564 | else | |
565 | Perl_croak(aTHX_ "lobj is not of type version"); | |
566 | ||
137d6fc0 | 567 | PUSHs(sv_2mortal(vstringify(lobj))); |
41be1fbd JH |
568 | |
569 | PUTBACK; | |
570 | return; | |
571 | } | |
439cb1c4 JP |
572 | } |
573 | ||
574 | XS(XS_version_numify) | |
575 | { | |
97aff369 | 576 | dVAR; |
41be1fbd | 577 | dXSARGS; |
58c0efa5 | 578 | PERL_UNUSED_ARG(cv); |
41be1fbd JH |
579 | if (items < 1) |
580 | Perl_croak(aTHX_ "Usage: version::numify(lobj, ...)"); | |
581 | SP -= items; | |
582 | { | |
7452cf6a | 583 | SV * lobj; |
41be1fbd JH |
584 | |
585 | if (sv_derived_from(ST(0), "version")) { | |
9137345a | 586 | lobj = SvRV(ST(0)); |
41be1fbd JH |
587 | } |
588 | else | |
589 | Perl_croak(aTHX_ "lobj is not of type version"); | |
590 | ||
137d6fc0 | 591 | PUSHs(sv_2mortal(vnumify(lobj))); |
41be1fbd JH |
592 | |
593 | PUTBACK; | |
594 | return; | |
595 | } | |
439cb1c4 JP |
596 | } |
597 | ||
9137345a JP |
598 | XS(XS_version_normal) |
599 | { | |
97aff369 | 600 | dVAR; |
9137345a | 601 | dXSARGS; |
58c0efa5 | 602 | PERL_UNUSED_ARG(cv); |
9137345a JP |
603 | if (items < 1) |
604 | Perl_croak(aTHX_ "Usage: version::normal(lobj, ...)"); | |
605 | SP -= items; | |
606 | { | |
7452cf6a | 607 | SV * lobj; |
9137345a JP |
608 | |
609 | if (sv_derived_from(ST(0), "version")) { | |
610 | lobj = SvRV(ST(0)); | |
611 | } | |
612 | else | |
613 | Perl_croak(aTHX_ "lobj is not of type version"); | |
614 | ||
615 | PUSHs(sv_2mortal(vnormal(lobj))); | |
616 | ||
617 | PUTBACK; | |
618 | return; | |
619 | } | |
620 | } | |
621 | ||
439cb1c4 JP |
622 | XS(XS_version_vcmp) |
623 | { | |
97aff369 | 624 | dVAR; |
41be1fbd | 625 | dXSARGS; |
58c0efa5 | 626 | PERL_UNUSED_ARG(cv); |
41be1fbd JH |
627 | if (items < 1) |
628 | Perl_croak(aTHX_ "Usage: version::vcmp(lobj, ...)"); | |
629 | SP -= items; | |
630 | { | |
7452cf6a | 631 | SV * lobj; |
41be1fbd JH |
632 | |
633 | if (sv_derived_from(ST(0), "version")) { | |
9137345a | 634 | lobj = SvRV(ST(0)); |
41be1fbd JH |
635 | } |
636 | else | |
637 | Perl_croak(aTHX_ "lobj is not of type version"); | |
638 | ||
639 | { | |
640 | SV *rs; | |
641 | SV *rvs; | |
642 | SV * robj = ST(1); | |
7452cf6a | 643 | const IV swap = (IV)SvIV(ST(2)); |
41be1fbd JH |
644 | |
645 | if ( ! sv_derived_from(robj, "version") ) | |
646 | { | |
647 | robj = new_version(robj); | |
648 | } | |
649 | rvs = SvRV(robj); | |
650 | ||
651 | if ( swap ) | |
652 | { | |
653 | rs = newSViv(vcmp(rvs,lobj)); | |
654 | } | |
655 | else | |
656 | { | |
657 | rs = newSViv(vcmp(lobj,rvs)); | |
658 | } | |
659 | ||
137d6fc0 | 660 | PUSHs(sv_2mortal(rs)); |
41be1fbd JH |
661 | } |
662 | ||
663 | PUTBACK; | |
664 | return; | |
665 | } | |
439cb1c4 JP |
666 | } |
667 | ||
668 | XS(XS_version_boolean) | |
669 | { | |
97aff369 JH |
670 | dVAR; |
671 | dXSARGS; | |
58c0efa5 | 672 | PERL_UNUSED_ARG(cv); |
97aff369 JH |
673 | if (items < 1) |
674 | Perl_croak(aTHX_ "Usage: version::boolean(lobj, ...)"); | |
675 | SP -= items; | |
c4420975 AL |
676 | if (sv_derived_from(ST(0), "version")) { |
677 | SV * const lobj = SvRV(ST(0)); | |
396482e1 | 678 | SV * const rs = newSViv( vcmp(lobj,new_version(newSVpvs("0"))) ); |
c4420975 AL |
679 | PUSHs(sv_2mortal(rs)); |
680 | PUTBACK; | |
681 | return; | |
682 | } | |
683 | else | |
684 | Perl_croak(aTHX_ "lobj is not of type version"); | |
439cb1c4 JP |
685 | } |
686 | ||
687 | XS(XS_version_noop) | |
688 | { | |
97aff369 | 689 | dVAR; |
2dfd8427 | 690 | dXSARGS; |
58c0efa5 | 691 | PERL_UNUSED_ARG(cv); |
2dfd8427 AL |
692 | if (items < 1) |
693 | Perl_croak(aTHX_ "Usage: version::noop(lobj, ...)"); | |
694 | if (sv_derived_from(ST(0), "version")) | |
695 | Perl_croak(aTHX_ "operation not supported with version object"); | |
696 | else | |
697 | Perl_croak(aTHX_ "lobj is not of type version"); | |
698 | #ifndef HASATTRIBUTE_NORETURN | |
699 | XSRETURN_EMPTY; | |
700 | #endif | |
439cb1c4 JP |
701 | } |
702 | ||
c8d69e4a JP |
703 | XS(XS_version_is_alpha) |
704 | { | |
97aff369 | 705 | dVAR; |
c8d69e4a | 706 | dXSARGS; |
58c0efa5 | 707 | PERL_UNUSED_ARG(cv); |
c8d69e4a JP |
708 | if (items != 1) |
709 | Perl_croak(aTHX_ "Usage: version::is_alpha(lobj)"); | |
710 | SP -= items; | |
c4420975 AL |
711 | if (sv_derived_from(ST(0), "version")) { |
712 | SV * const lobj = ST(0); | |
713 | if ( hv_exists((HV*)SvRV(lobj), "alpha", 5 ) ) | |
714 | XSRETURN_YES; | |
715 | else | |
716 | XSRETURN_NO; | |
c8d69e4a JP |
717 | PUTBACK; |
718 | return; | |
719 | } | |
c4420975 AL |
720 | else |
721 | Perl_croak(aTHX_ "lobj is not of type version"); | |
c8d69e4a JP |
722 | } |
723 | ||
137d6fc0 JP |
724 | XS(XS_version_qv) |
725 | { | |
97aff369 | 726 | dVAR; |
137d6fc0 | 727 | dXSARGS; |
58c0efa5 | 728 | PERL_UNUSED_ARG(cv); |
137d6fc0 JP |
729 | if (items != 1) |
730 | Perl_croak(aTHX_ "Usage: version::qv(ver)"); | |
731 | SP -= items; | |
732 | { | |
733 | SV * ver = ST(0); | |
c4420975 | 734 | if ( !SvVOK(ver) ) { /* only need to do with if not already v-string */ |
ac0e6a2f RGS |
735 | SV * const rv = sv_newmortal(); |
736 | sv_setsv(rv,ver); /* make a duplicate */ | |
737 | upg_version(rv, TRUE); | |
738 | PUSHs(rv); | |
137d6fc0 JP |
739 | } |
740 | else | |
741 | { | |
742 | PUSHs(sv_2mortal(new_version(ver))); | |
743 | } | |
744 | ||
745 | PUTBACK; | |
746 | return; | |
747 | } | |
748 | } | |
749 | ||
8800c35a JH |
750 | XS(XS_utf8_is_utf8) |
751 | { | |
97aff369 | 752 | dVAR; |
41be1fbd | 753 | dXSARGS; |
58c0efa5 | 754 | PERL_UNUSED_ARG(cv); |
41be1fbd JH |
755 | if (items != 1) |
756 | Perl_croak(aTHX_ "Usage: utf8::is_utf8(sv)"); | |
c4420975 AL |
757 | else { |
758 | const SV * const sv = ST(0); | |
759 | if (SvUTF8(sv)) | |
760 | XSRETURN_YES; | |
761 | else | |
762 | XSRETURN_NO; | |
41be1fbd JH |
763 | } |
764 | XSRETURN_EMPTY; | |
8800c35a JH |
765 | } |
766 | ||
1b026014 NIS |
767 | XS(XS_utf8_valid) |
768 | { | |
97aff369 | 769 | dVAR; |
41be1fbd | 770 | dXSARGS; |
58c0efa5 | 771 | PERL_UNUSED_ARG(cv); |
41be1fbd JH |
772 | if (items != 1) |
773 | Perl_croak(aTHX_ "Usage: utf8::valid(sv)"); | |
c4420975 AL |
774 | else { |
775 | SV * const sv = ST(0); | |
776 | STRLEN len; | |
777 | const char * const s = SvPV_const(sv,len); | |
778 | if (!SvUTF8(sv) || is_utf8_string((const U8*)s,len)) | |
779 | XSRETURN_YES; | |
780 | else | |
781 | XSRETURN_NO; | |
782 | } | |
41be1fbd | 783 | XSRETURN_EMPTY; |
1b026014 NIS |
784 | } |
785 | ||
786 | XS(XS_utf8_encode) | |
787 | { | |
97aff369 | 788 | dVAR; |
1b026014 | 789 | dXSARGS; |
58c0efa5 | 790 | PERL_UNUSED_ARG(cv); |
1b026014 NIS |
791 | if (items != 1) |
792 | Perl_croak(aTHX_ "Usage: utf8::encode(sv)"); | |
c4420975 | 793 | sv_utf8_encode(ST(0)); |
1b026014 NIS |
794 | XSRETURN_EMPTY; |
795 | } | |
796 | ||
797 | XS(XS_utf8_decode) | |
798 | { | |
97aff369 | 799 | dVAR; |
1b026014 | 800 | dXSARGS; |
58c0efa5 | 801 | PERL_UNUSED_ARG(cv); |
1b026014 NIS |
802 | if (items != 1) |
803 | Perl_croak(aTHX_ "Usage: utf8::decode(sv)"); | |
c4420975 AL |
804 | else { |
805 | SV * const sv = ST(0); | |
6867be6d | 806 | const bool RETVAL = sv_utf8_decode(sv); |
1b026014 NIS |
807 | ST(0) = boolSV(RETVAL); |
808 | sv_2mortal(ST(0)); | |
809 | } | |
810 | XSRETURN(1); | |
811 | } | |
812 | ||
813 | XS(XS_utf8_upgrade) | |
814 | { | |
97aff369 | 815 | dVAR; |
1b026014 | 816 | dXSARGS; |
58c0efa5 | 817 | PERL_UNUSED_ARG(cv); |
1b026014 NIS |
818 | if (items != 1) |
819 | Perl_croak(aTHX_ "Usage: utf8::upgrade(sv)"); | |
c4420975 AL |
820 | else { |
821 | SV * const sv = ST(0); | |
1b026014 NIS |
822 | STRLEN RETVAL; |
823 | dXSTARG; | |
824 | ||
825 | RETVAL = sv_utf8_upgrade(sv); | |
826 | XSprePUSH; PUSHi((IV)RETVAL); | |
827 | } | |
828 | XSRETURN(1); | |
829 | } | |
830 | ||
831 | XS(XS_utf8_downgrade) | |
832 | { | |
97aff369 | 833 | dVAR; |
1b026014 | 834 | dXSARGS; |
58c0efa5 | 835 | PERL_UNUSED_ARG(cv); |
1b026014 NIS |
836 | if (items < 1 || items > 2) |
837 | Perl_croak(aTHX_ "Usage: utf8::downgrade(sv, failok=0)"); | |
c4420975 AL |
838 | else { |
839 | SV * const sv = ST(0); | |
6867be6d AL |
840 | const bool failok = (items < 2) ? 0 : (int)SvIV(ST(1)); |
841 | const bool RETVAL = sv_utf8_downgrade(sv, failok); | |
1b026014 | 842 | |
1b026014 NIS |
843 | ST(0) = boolSV(RETVAL); |
844 | sv_2mortal(ST(0)); | |
845 | } | |
846 | XSRETURN(1); | |
847 | } | |
848 | ||
849 | XS(XS_utf8_native_to_unicode) | |
850 | { | |
97aff369 | 851 | dVAR; |
1b026014 | 852 | dXSARGS; |
6867be6d | 853 | const UV uv = SvUV(ST(0)); |
58c0efa5 | 854 | PERL_UNUSED_ARG(cv); |
b7953727 JH |
855 | |
856 | if (items > 1) | |
857 | Perl_croak(aTHX_ "Usage: utf8::native_to_unicode(sv)"); | |
858 | ||
1b026014 NIS |
859 | ST(0) = sv_2mortal(newSViv(NATIVE_TO_UNI(uv))); |
860 | XSRETURN(1); | |
861 | } | |
862 | ||
863 | XS(XS_utf8_unicode_to_native) | |
864 | { | |
97aff369 | 865 | dVAR; |
1b026014 | 866 | dXSARGS; |
6867be6d | 867 | const UV uv = SvUV(ST(0)); |
58c0efa5 | 868 | PERL_UNUSED_ARG(cv); |
b7953727 JH |
869 | |
870 | if (items > 1) | |
871 | Perl_croak(aTHX_ "Usage: utf8::unicode_to_native(sv)"); | |
872 | ||
1b026014 NIS |
873 | ST(0) = sv_2mortal(newSViv(UNI_TO_NATIVE(uv))); |
874 | XSRETURN(1); | |
875 | } | |
876 | ||
14a976d6 | 877 | XS(XS_Internals_SvREADONLY) /* This is dangerous stuff. */ |
29569577 | 878 | { |
97aff369 | 879 | dVAR; |
29569577 | 880 | dXSARGS; |
c4420975 | 881 | SV * const sv = SvRV(ST(0)); |
58c0efa5 | 882 | PERL_UNUSED_ARG(cv); |
6867be6d | 883 | |
29569577 JH |
884 | if (items == 1) { |
885 | if (SvREADONLY(sv)) | |
886 | XSRETURN_YES; | |
887 | else | |
888 | XSRETURN_NO; | |
889 | } | |
890 | else if (items == 2) { | |
891 | if (SvTRUE(ST(1))) { | |
892 | SvREADONLY_on(sv); | |
893 | XSRETURN_YES; | |
894 | } | |
895 | else { | |
14a976d6 | 896 | /* I hope you really know what you are doing. */ |
29569577 JH |
897 | SvREADONLY_off(sv); |
898 | XSRETURN_NO; | |
899 | } | |
900 | } | |
14a976d6 | 901 | XSRETURN_UNDEF; /* Can't happen. */ |
29569577 JH |
902 | } |
903 | ||
14a976d6 | 904 | XS(XS_Internals_SvREFCNT) /* This is dangerous stuff. */ |
29569577 | 905 | { |
97aff369 | 906 | dVAR; |
29569577 | 907 | dXSARGS; |
c4420975 | 908 | SV * const sv = SvRV(ST(0)); |
58c0efa5 | 909 | PERL_UNUSED_ARG(cv); |
6867be6d | 910 | |
29569577 | 911 | if (items == 1) |
14a976d6 | 912 | XSRETURN_IV(SvREFCNT(sv) - 1); /* Minus the ref created for us. */ |
29569577 | 913 | else if (items == 2) { |
14a976d6 | 914 | /* I hope you really know what you are doing. */ |
29569577 JH |
915 | SvREFCNT(sv) = SvIV(ST(1)); |
916 | XSRETURN_IV(SvREFCNT(sv)); | |
917 | } | |
14a976d6 | 918 | XSRETURN_UNDEF; /* Can't happen. */ |
29569577 JH |
919 | } |
920 | ||
f044d0d1 | 921 | XS(XS_Internals_hv_clear_placehold) |
dfd4ef2f | 922 | { |
97aff369 | 923 | dVAR; |
dfd4ef2f | 924 | dXSARGS; |
58c0efa5 | 925 | PERL_UNUSED_ARG(cv); |
6867be6d | 926 | |
3540d4ce AB |
927 | if (items != 1) |
928 | Perl_croak(aTHX_ "Usage: UNIVERSAL::hv_clear_placeholders(hv)"); | |
c4420975 AL |
929 | else { |
930 | HV * const hv = (HV *) SvRV(ST(0)); | |
931 | hv_clear_placeholders(hv); | |
932 | XSRETURN(0); | |
933 | } | |
dfd4ef2f | 934 | } |
39f7a870 | 935 | |
39cff0d9 AE |
936 | XS(XS_Regexp_DESTROY) |
937 | { | |
96a5add6 | 938 | PERL_UNUSED_CONTEXT; |
53c1dcc0 | 939 | PERL_UNUSED_ARG(cv); |
39cff0d9 AE |
940 | } |
941 | ||
39f7a870 JH |
942 | XS(XS_PerlIO_get_layers) |
943 | { | |
97aff369 | 944 | dVAR; |
39f7a870 | 945 | dXSARGS; |
58c0efa5 | 946 | PERL_UNUSED_ARG(cv); |
39f7a870 JH |
947 | if (items < 1 || items % 2 == 0) |
948 | Perl_croak(aTHX_ "Usage: PerlIO_get_layers(filehandle[,args])"); | |
5fef3b4a | 949 | #ifdef USE_PERLIO |
39f7a870 JH |
950 | { |
951 | SV * sv; | |
952 | GV * gv; | |
953 | IO * io; | |
954 | bool input = TRUE; | |
955 | bool details = FALSE; | |
956 | ||
957 | if (items > 1) { | |
c4420975 | 958 | SV * const *svp; |
39f7a870 | 959 | for (svp = MARK + 2; svp <= SP; svp += 2) { |
c4420975 AL |
960 | SV * const * const varp = svp; |
961 | SV * const * const valp = svp + 1; | |
39f7a870 | 962 | STRLEN klen; |
c4420975 | 963 | const char * const key = SvPV_const(*varp, klen); |
39f7a870 JH |
964 | |
965 | switch (*key) { | |
966 | case 'i': | |
967 | if (klen == 5 && memEQ(key, "input", 5)) { | |
968 | input = SvTRUE(*valp); | |
969 | break; | |
970 | } | |
971 | goto fail; | |
972 | case 'o': | |
973 | if (klen == 6 && memEQ(key, "output", 6)) { | |
974 | input = !SvTRUE(*valp); | |
975 | break; | |
976 | } | |
977 | goto fail; | |
978 | case 'd': | |
979 | if (klen == 7 && memEQ(key, "details", 7)) { | |
980 | details = SvTRUE(*valp); | |
981 | break; | |
982 | } | |
983 | goto fail; | |
984 | default: | |
985 | fail: | |
986 | Perl_croak(aTHX_ | |
987 | "get_layers: unknown argument '%s'", | |
988 | key); | |
989 | } | |
990 | } | |
991 | ||
992 | SP -= (items - 1); | |
993 | } | |
994 | ||
995 | sv = POPs; | |
996 | gv = (GV*)sv; | |
997 | ||
998 | if (!isGV(sv)) { | |
999 | if (SvROK(sv) && isGV(SvRV(sv))) | |
1000 | gv = (GV*)SvRV(sv); | |
671d49be | 1001 | else if (SvPOKp(sv)) |
f776e3cd | 1002 | gv = gv_fetchsv(sv, 0, SVt_PVIO); |
39f7a870 JH |
1003 | } |
1004 | ||
1005 | if (gv && (io = GvIO(gv))) { | |
1006 | dTARGET; | |
c4420975 | 1007 | AV* const av = PerlIO_get_layers(aTHX_ input ? |
39f7a870 JH |
1008 | IoIFP(io) : IoOFP(io)); |
1009 | I32 i; | |
c4420975 | 1010 | const I32 last = av_len(av); |
39f7a870 JH |
1011 | I32 nitem = 0; |
1012 | ||
1013 | for (i = last; i >= 0; i -= 3) { | |
c4420975 AL |
1014 | SV * const * const namsvp = av_fetch(av, i - 2, FALSE); |
1015 | SV * const * const argsvp = av_fetch(av, i - 1, FALSE); | |
1016 | SV * const * const flgsvp = av_fetch(av, i, FALSE); | |
39f7a870 | 1017 | |
c4420975 AL |
1018 | const bool namok = namsvp && *namsvp && SvPOK(*namsvp); |
1019 | const bool argok = argsvp && *argsvp && SvPOK(*argsvp); | |
1020 | const bool flgok = flgsvp && *flgsvp && SvIOK(*flgsvp); | |
39f7a870 JH |
1021 | |
1022 | if (details) { | |
ec3bab8e NC |
1023 | XPUSHs(namok |
1024 | ? newSVpvn(SvPVX_const(*namsvp), SvCUR(*namsvp)) | |
1025 | : &PL_sv_undef); | |
1026 | XPUSHs(argok | |
1027 | ? newSVpvn(SvPVX_const(*argsvp), SvCUR(*argsvp)) | |
1028 | : &PL_sv_undef); | |
39f7a870 JH |
1029 | if (flgok) |
1030 | XPUSHi(SvIVX(*flgsvp)); | |
1031 | else | |
1032 | XPUSHs(&PL_sv_undef); | |
1033 | nitem += 3; | |
1034 | } | |
1035 | else { | |
1036 | if (namok && argok) | |
1037 | XPUSHs(Perl_newSVpvf(aTHX_ "%"SVf"(%"SVf")", | |
be2597df MHM |
1038 | SVfARG(*namsvp), |
1039 | SVfARG(*argsvp))); | |
39f7a870 | 1040 | else if (namok) |
95b63a38 | 1041 | XPUSHs(Perl_newSVpvf(aTHX_ "%"SVf, |
be2597df | 1042 | SVfARG(*namsvp))); |
39f7a870 JH |
1043 | else |
1044 | XPUSHs(&PL_sv_undef); | |
1045 | nitem++; | |
1046 | if (flgok) { | |
c4420975 | 1047 | const IV flags = SvIVX(*flgsvp); |
39f7a870 JH |
1048 | |
1049 | if (flags & PERLIO_F_UTF8) { | |
396482e1 | 1050 | XPUSHs(newSVpvs("utf8")); |
39f7a870 JH |
1051 | nitem++; |
1052 | } | |
1053 | } | |
1054 | } | |
1055 | } | |
1056 | ||
1057 | SvREFCNT_dec(av); | |
1058 | ||
1059 | XSRETURN(nitem); | |
1060 | } | |
1061 | } | |
5fef3b4a | 1062 | #endif |
39f7a870 JH |
1063 | |
1064 | XSRETURN(0); | |
1065 | } | |
1066 | ||
9a7034eb | 1067 | XS(XS_Internals_hash_seed) |
c910b28a | 1068 | { |
97aff369 | 1069 | dVAR; |
c85d3f85 NC |
1070 | /* Using dXSARGS would also have dITEM and dSP, |
1071 | * which define 2 unused local variables. */ | |
557b887a | 1072 | dAXMARK; |
53c1dcc0 | 1073 | PERL_UNUSED_ARG(cv); |
ad73156c | 1074 | PERL_UNUSED_VAR(mark); |
81eaca17 | 1075 | XSRETURN_UV(PERL_HASH_SEED); |
c910b28a JH |
1076 | } |
1077 | ||
008fb0c0 | 1078 | XS(XS_Internals_rehash_seed) |
8e90d776 | 1079 | { |
97aff369 | 1080 | dVAR; |
8e90d776 NC |
1081 | /* Using dXSARGS would also have dITEM and dSP, |
1082 | * which define 2 unused local variables. */ | |
557b887a | 1083 | dAXMARK; |
53c1dcc0 | 1084 | PERL_UNUSED_ARG(cv); |
ad73156c | 1085 | PERL_UNUSED_VAR(mark); |
008fb0c0 | 1086 | XSRETURN_UV(PL_rehash_seed); |
8e90d776 NC |
1087 | } |
1088 | ||
05619474 NC |
1089 | XS(XS_Internals_HvREHASH) /* Subject to change */ |
1090 | { | |
97aff369 | 1091 | dVAR; |
05619474 | 1092 | dXSARGS; |
58c0efa5 | 1093 | PERL_UNUSED_ARG(cv); |
05619474 | 1094 | if (SvROK(ST(0))) { |
c4420975 | 1095 | const HV * const hv = (HV *) SvRV(ST(0)); |
05619474 NC |
1096 | if (items == 1 && SvTYPE(hv) == SVt_PVHV) { |
1097 | if (HvREHASH(hv)) | |
1098 | XSRETURN_YES; | |
1099 | else | |
1100 | XSRETURN_NO; | |
1101 | } | |
1102 | } | |
1103 | Perl_croak(aTHX_ "Internals::HvREHASH $hashref"); | |
1104 | } | |
241d1a3b | 1105 | |
e1234d8e NC |
1106 | XS(XS_Internals_inc_sub_generation) |
1107 | { | |
97aff369 | 1108 | dVAR; |
e1234d8e NC |
1109 | /* Using dXSARGS would also have dITEM and dSP, |
1110 | * which define 2 unused local variables. */ | |
1111 | dAXMARK; | |
1112 | PERL_UNUSED_ARG(cv); | |
1113 | PERL_UNUSED_VAR(mark); | |
1114 | ++PL_sub_generation; | |
1115 | XSRETURN_EMPTY; | |
1116 | } | |
1117 | ||
80305961 YO |
1118 | XS(XS_re_is_regexp) |
1119 | { | |
1120 | dVAR; | |
1121 | dXSARGS; | |
1122 | if (items != 1) | |
1123 | Perl_croak(aTHX_ "Usage: %s(%s)", "re::is_regexp", "sv"); | |
1124 | PERL_UNUSED_VAR(cv); /* -W */ | |
1125 | PERL_UNUSED_VAR(ax); /* -Wall */ | |
1126 | SP -= items; | |
1127 | { | |
1128 | SV * sv = ST(0); | |
1129 | if ( Perl_get_re_arg( aTHX_ sv, 0, NULL ) ) | |
1130 | { | |
1131 | XSRETURN_YES; | |
1132 | } else { | |
1133 | XSRETURN_NO; | |
1134 | } | |
1135 | /* NOTREACHED */ | |
1136 | PUTBACK; | |
1137 | return; | |
1138 | } | |
1139 | } | |
1140 | ||
1141 | XS(XS_re_regname) | |
1142 | { | |
1143 | ||
1144 | dVAR; | |
1145 | dXSARGS; | |
1146 | if (items < 1 || items > 3) | |
1147 | Perl_croak(aTHX_ "Usage: %s(%s)", "re::regname", "sv, qr = NULL, all = NULL"); | |
1148 | PERL_UNUSED_VAR(cv); /* -W */ | |
1149 | PERL_UNUSED_VAR(ax); /* -Wall */ | |
1150 | SP -= items; | |
1151 | { | |
1152 | SV * sv = ST(0); | |
1153 | SV * qr; | |
1154 | SV * all; | |
1155 | regexp *re = NULL; | |
1156 | SV *bufs = NULL; | |
1157 | ||
1158 | if (items < 2) | |
1159 | qr = NULL; | |
1160 | else { | |
1161 | qr = ST(1); | |
1162 | } | |
1163 | ||
1164 | if (items < 3) | |
1165 | all = NULL; | |
1166 | else { | |
1167 | all = ST(2); | |
1168 | } | |
1169 | { | |
1170 | re = Perl_get_re_arg( aTHX_ qr, 1, NULL); | |
1171 | if (SvPOK(sv) && re && re->paren_names) { | |
1172 | bufs = CALLREG_NAMEDBUF(re,sv,all && SvTRUE(all)); | |
1173 | if (bufs) { | |
1174 | if (all && SvTRUE(all)) | |
1175 | XPUSHs(newRV(bufs)); | |
1176 | else | |
1177 | XPUSHs(SvREFCNT_inc(bufs)); | |
1178 | XSRETURN(1); | |
1179 | } | |
1180 | } | |
1181 | XSRETURN_UNDEF; | |
1182 | } | |
1183 | PUTBACK; | |
1184 | return; | |
1185 | } | |
1186 | } | |
1187 | ||
1188 | XS(XS_re_regnames) | |
1189 | { | |
1190 | dVAR; | |
1191 | dXSARGS; | |
1192 | if (items < 0 || items > 2) | |
1193 | Perl_croak(aTHX_ "Usage: %s(%s)", "re::regnames", "sv = NULL, all = NULL"); | |
1194 | PERL_UNUSED_VAR(cv); /* -W */ | |
1195 | PERL_UNUSED_VAR(ax); /* -Wall */ | |
1196 | SP -= items; | |
1197 | { | |
1198 | SV * sv; | |
1199 | SV * all; | |
1200 | regexp *re = NULL; | |
1201 | IV count = 0; | |
1202 | ||
1203 | if (items < 1) | |
1204 | sv = NULL; | |
1205 | else { | |
1206 | sv = ST(0); | |
1207 | } | |
1208 | ||
1209 | if (items < 2) | |
1210 | all = NULL; | |
1211 | else { | |
1212 | all = ST(1); | |
1213 | } | |
1214 | { | |
1215 | re = Perl_get_re_arg( aTHX_ sv, 1, NULL ); | |
1216 | if (re && re->paren_names) { | |
1217 | HV *hv= re->paren_names; | |
1218 | (void)hv_iterinit(hv); | |
1219 | while (1) { | |
1220 | HE *temphe = hv_iternext_flags(hv,0); | |
1221 | if (temphe) { | |
1222 | IV i; | |
1223 | IV parno = 0; | |
1224 | SV* sv_dat = HeVAL(temphe); | |
1225 | I32 *nums = (I32*)SvPVX(sv_dat); | |
1226 | for ( i = 0; i < SvIVX(sv_dat); i++ ) { | |
1227 | if ((I32)(re->lastcloseparen) >= nums[i] && | |
1228 | re->startp[nums[i]] != -1 && | |
1229 | re->endp[nums[i]] != -1) | |
1230 | { | |
1231 | parno = nums[i]; | |
1232 | break; | |
1233 | } | |
1234 | } | |
1235 | if (parno || (all && SvTRUE(all))) { | |
1236 | STRLEN len; | |
1237 | char *pv = HePV(temphe, len); | |
1238 | if ( GIMME_V == G_ARRAY ) | |
1239 | XPUSHs(newSVpvn(pv,len)); | |
1240 | count++; | |
1241 | } | |
1242 | } else { | |
1243 | break; | |
1244 | } | |
1245 | } | |
1246 | } | |
1247 | if ( GIMME_V == G_ARRAY ) | |
1248 | XSRETURN(count); | |
1249 | else | |
1250 | XSRETURN_UNDEF; | |
1251 | } | |
1252 | PUTBACK; | |
1253 | return; | |
1254 | } | |
1255 | } | |
1256 | ||
1257 | ||
1258 | XS(XS_re_regnames_iterinit) | |
1259 | { | |
1260 | dVAR; | |
1261 | dXSARGS; | |
1262 | if (items < 0 || items > 1) | |
1263 | Perl_croak(aTHX_ "Usage: %s(%s)", "re::regnames_iterinit", "sv = NULL"); | |
1264 | PERL_UNUSED_VAR(cv); /* -W */ | |
1265 | PERL_UNUSED_VAR(ax); /* -Wall */ | |
1266 | SP -= items; | |
1267 | { | |
1268 | SV * sv; | |
1269 | regexp *re = NULL; | |
1270 | ||
1271 | if (items < 1) | |
1272 | sv = NULL; | |
1273 | else { | |
1274 | sv = ST(0); | |
1275 | } | |
1276 | { | |
1277 | re = Perl_get_re_arg( aTHX_ sv, 1, NULL ); | |
1278 | if (re && re->paren_names) { | |
1279 | (void)hv_iterinit(re->paren_names); | |
1280 | XPUSHs(newSViv(HvTOTALKEYS(re->paren_names))); | |
1281 | } else { | |
1282 | XSRETURN_UNDEF; | |
1283 | } | |
1284 | } | |
1285 | PUTBACK; | |
1286 | return; | |
1287 | } | |
1288 | } | |
1289 | ||
1290 | ||
1291 | XS(XS_re_regnames_iternext) | |
1292 | { | |
1293 | dVAR; | |
1294 | dXSARGS; | |
1295 | if (items < 0 || items > 2) | |
1296 | Perl_croak(aTHX_ "Usage: %s(%s)", "re::regnames_iternext", "sv = NULL, all = NULL"); | |
1297 | PERL_UNUSED_VAR(cv); /* -W */ | |
1298 | PERL_UNUSED_VAR(ax); /* -Wall */ | |
1299 | SP -= items; | |
1300 | { | |
1301 | SV * sv; | |
1302 | SV * all; | |
1303 | regexp *re; | |
1304 | ||
1305 | if (items < 1) | |
1306 | sv = NULL; | |
1307 | else { | |
1308 | sv = ST(0); | |
1309 | } | |
1310 | ||
1311 | if (items < 2) | |
1312 | all = NULL; | |
1313 | else { | |
1314 | all = ST(1); | |
1315 | } | |
1316 | { | |
1317 | re = Perl_get_re_arg( aTHX_ sv, 1, NULL ); | |
1318 | if (re && re->paren_names) { | |
1319 | HV *hv= re->paren_names; | |
1320 | while (1) { | |
1321 | HE *temphe = hv_iternext_flags(hv,0); | |
1322 | if (temphe) { | |
1323 | IV i; | |
1324 | IV parno = 0; | |
1325 | SV* sv_dat = HeVAL(temphe); | |
1326 | I32 *nums = (I32*)SvPVX(sv_dat); | |
1327 | for ( i = 0; i < SvIVX(sv_dat); i++ ) { | |
1328 | if ((I32)(re->lastcloseparen) >= nums[i] && | |
1329 | re->startp[nums[i]] != -1 && | |
1330 | re->endp[nums[i]] != -1) | |
1331 | { | |
1332 | parno = nums[i]; | |
1333 | break; | |
1334 | } | |
1335 | } | |
1336 | if (parno || (all && SvTRUE(all))) { | |
1337 | STRLEN len; | |
1338 | char *pv = HePV(temphe, len); | |
1339 | XPUSHs(newSVpvn(pv,len)); | |
1340 | XSRETURN(1); | |
1341 | } | |
1342 | } else { | |
1343 | break; | |
1344 | } | |
1345 | } | |
1346 | } | |
1347 | XSRETURN_UNDEF; | |
1348 | } | |
1349 | PUTBACK; | |
1350 | return; | |
1351 | } | |
1352 | } | |
1353 | ||
1354 | ||
1355 | XS(XS_re_regnames_count) | |
1356 | { | |
1357 | SV * sv; | |
1358 | regexp *re = NULL; | |
1359 | dVAR; | |
1360 | dXSARGS; | |
1361 | ||
1362 | if (items < 0 || items > 1) | |
1363 | Perl_croak(aTHX_ "Usage: %s(%s)", "re::regnames_count", "sv = NULL"); | |
1364 | PERL_UNUSED_VAR(cv); /* -W */ | |
1365 | PERL_UNUSED_VAR(ax); /* -Wall */ | |
1366 | SP -= items; | |
1367 | if (items < 1) | |
1368 | sv = NULL; | |
1369 | else { | |
1370 | sv = ST(0); | |
1371 | } | |
1372 | re = Perl_get_re_arg( aTHX_ sv, 1, NULL ); | |
1373 | if (re && re->paren_names) { | |
1374 | XPUSHs(newSViv(HvTOTALKEYS(re->paren_names))); | |
1375 | } else { | |
1376 | XSRETURN_UNDEF; | |
1377 | } | |
1378 | PUTBACK; | |
1379 | return; | |
1380 | } | |
1381 | ||
1382 | ||
241d1a3b NC |
1383 | /* |
1384 | * Local variables: | |
1385 | * c-indentation-style: bsd | |
1386 | * c-basic-offset: 4 | |
1387 | * indent-tabs-mode: t | |
1388 | * End: | |
1389 | * | |
37442d52 RGS |
1390 | * ex: set ts=8 sts=4 sw=4 noet: |
1391 | */ |