3 * Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004,
4 * 2005, 2006, 2007 by Larry Wall and others
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.
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
17 /* This file contains the code that implements the functions in Perl's
18 * UNIVERSAL package, such as UNIVERSAL->can().
22 #define PERL_IN_UNIVERSAL_C
26 #include "perliol.h" /* For the PERLIO_F_XXX */
30 * Contributed by Graham Barr <Graham.Barr@tiuk.ti.com>
31 * The main guts of traverse_isa was actually copied from gv_fetchmeth
35 S_isa_lookup(pTHX_ HV *stash, const char * const name, const HV* const name_stash)
43 /* A stash/class can go by many names (ie. User == main::User), so
44 we compare the stash itself just in case */
45 if (name_stash && ((const HV *)stash == name_stash))
48 hvname = HvNAME_get(stash);
50 if (strEQ(hvname, name))
53 if (strEQ(name, "UNIVERSAL"))
56 stash_linear_isa = mro_get_linear_isa(stash);
57 svp = AvARRAY(stash_linear_isa) + 1;
58 items = AvFILLp(stash_linear_isa);
60 SV* const basename_sv = *svp++;
61 HV* const basestash = gv_stashsv(basename_sv, 0);
63 if (ckWARN(WARN_SYNTAX))
64 Perl_warner(aTHX_ packWARN(WARN_SYNTAX),
65 "Can't locate package %"SVf" for the parents of %s",
66 SVfARG(basename_sv), hvname);
69 if(name_stash == basestash || strEQ(name, SvPVX(basename_sv)))
77 =head1 SV Manipulation Functions
79 =for apidoc sv_derived_from
81 Returns a boolean indicating whether the SV is derived from the specified class
82 I<at the C level>. To check derivation at the Perl level, call C<isa()> as a
89 Perl_sv_derived_from(pTHX_ SV *sv, const char *name)
99 type = sv_reftype(sv,0);
100 if (type && strEQ(type,name))
102 stash = SvOBJECT(sv) ? SvSTASH(sv) : NULL;
105 stash = gv_stashsv(sv, 0);
109 HV * const name_stash = gv_stashpv(name, 0);
110 return isa_lookup(stash, name, name_stash);
120 Returns a boolean indicating whether the SV performs a specific, named role.
121 The SV can be a Perl object or the name of a Perl class.
129 Perl_sv_does(pTHX_ SV *sv, const char *name)
131 const char *classname;
141 if (!SvOK(sv) || !(SvROK(sv) || (SvPOK(sv) && SvCUR(sv))
142 || (SvGMAGICAL(sv) && SvPOKp(sv) && SvCUR(sv))))
145 if (sv_isobject(sv)) {
146 classname = sv_reftype(SvRV(sv),TRUE);
148 classname = SvPV_nolen(sv);
151 if (strEQ(name,classname))
156 XPUSHs(sv_2mortal(newSVpv(name, 0)));
159 methodname = sv_2mortal(newSVpv("isa", 0));
160 /* ugly hack: use the SvSCREAM flag so S_method_common
161 * can figure out we're calling DOES() and not isa(),
162 * and report eventual errors correctly. --rgs */
163 SvSCREAM_on(methodname);
164 call_sv(methodname, G_SCALAR | G_METHOD);
167 does_it = SvTRUE( TOPs );
175 Perl_get_re_arg( pTHX_ SV *sv, U32 flags, MAGIC **mgp) {
181 (sv = (SV*)SvRV(sv)) && /* assign deliberate */
182 SvTYPE(sv) == SVt_PVMG &&
183 (mg = mg_find(sv, PERL_MAGIC_qr))) /* assign deliberate */
186 return (regexp *)mg->mg_obj;
189 if (mgp) *mgp = NULL;
190 return ((flags && PL_curpm) ? PM_GETRE(PL_curpm) : NULL);
194 PERL_XS_EXPORT_C void XS_UNIVERSAL_isa(pTHX_ CV *cv);
195 PERL_XS_EXPORT_C void XS_UNIVERSAL_can(pTHX_ CV *cv);
196 PERL_XS_EXPORT_C void XS_UNIVERSAL_DOES(pTHX_ CV *cv);
197 PERL_XS_EXPORT_C void XS_UNIVERSAL_VERSION(pTHX_ CV *cv);
199 XS(XS_version_stringify);
200 XS(XS_version_numify);
201 XS(XS_version_normal);
203 XS(XS_version_boolean);
204 #ifdef HASATTRIBUTE_NORETURN
205 XS(XS_version_noop) __attribute__noreturn__;
209 XS(XS_version_is_alpha);
216 XS(XS_utf8_downgrade);
217 XS(XS_utf8_unicode_to_native);
218 XS(XS_utf8_native_to_unicode);
219 XS(XS_Internals_SvREADONLY);
220 XS(XS_Internals_SvREFCNT);
221 XS(XS_Internals_hv_clear_placehold);
222 XS(XS_PerlIO_get_layers);
223 XS(XS_Regexp_DESTROY);
224 XS(XS_Internals_hash_seed);
225 XS(XS_Internals_rehash_seed);
226 XS(XS_Internals_HvREHASH);
227 XS(XS_Internals_inc_sub_generation);
231 XS(XS_re_regnames_iterinit);
232 XS(XS_re_regnames_iternext);
233 XS(XS_re_regnames_count);
236 Perl_boot_core_UNIVERSAL(pTHX)
239 static const char file[] = __FILE__;
241 newXS("UNIVERSAL::isa", XS_UNIVERSAL_isa, file);
242 newXS("UNIVERSAL::can", XS_UNIVERSAL_can, file);
243 newXS("UNIVERSAL::DOES", XS_UNIVERSAL_DOES, file);
244 newXS("UNIVERSAL::VERSION", XS_UNIVERSAL_VERSION, file);
246 /* register the overloading (type 'A') magic */
247 PL_amagic_generation++;
248 /* Make it findable via fetchmethod */
249 newXS("version::()", XS_version_noop, file);
250 newXS("version::new", XS_version_new, file);
251 newXS("version::(\"\"", XS_version_stringify, file);
252 newXS("version::stringify", XS_version_stringify, file);
253 newXS("version::(0+", XS_version_numify, file);
254 newXS("version::numify", XS_version_numify, file);
255 newXS("version::normal", XS_version_normal, file);
256 newXS("version::(cmp", XS_version_vcmp, file);
257 newXS("version::(<=>", XS_version_vcmp, file);
258 newXS("version::vcmp", XS_version_vcmp, file);
259 newXS("version::(bool", XS_version_boolean, file);
260 newXS("version::boolean", XS_version_boolean, file);
261 newXS("version::(nomethod", XS_version_noop, file);
262 newXS("version::noop", XS_version_noop, file);
263 newXS("version::is_alpha", XS_version_is_alpha, file);
264 newXS("version::qv", XS_version_qv, file);
266 newXS("utf8::is_utf8", XS_utf8_is_utf8, file);
267 newXS("utf8::valid", XS_utf8_valid, file);
268 newXS("utf8::encode", XS_utf8_encode, file);
269 newXS("utf8::decode", XS_utf8_decode, file);
270 newXS("utf8::upgrade", XS_utf8_upgrade, file);
271 newXS("utf8::downgrade", XS_utf8_downgrade, file);
272 newXS("utf8::native_to_unicode", XS_utf8_native_to_unicode, file);
273 newXS("utf8::unicode_to_native", XS_utf8_unicode_to_native, file);
274 newXSproto("Internals::SvREADONLY",XS_Internals_SvREADONLY, file, "\\[$%@];$");
275 newXSproto("Internals::SvREFCNT",XS_Internals_SvREFCNT, file, "\\[$%@];$");
276 newXSproto("Internals::hv_clear_placeholders",
277 XS_Internals_hv_clear_placehold, file, "\\%");
278 newXSproto("PerlIO::get_layers",
279 XS_PerlIO_get_layers, file, "*;@");
280 newXS("Regexp::DESTROY", XS_Regexp_DESTROY, file);
281 newXSproto("Internals::hash_seed",XS_Internals_hash_seed, file, "");
282 newXSproto("Internals::rehash_seed",XS_Internals_rehash_seed, file, "");
283 newXSproto("Internals::HvREHASH", XS_Internals_HvREHASH, file, "\\%");
284 newXSproto("re::is_regexp", XS_re_is_regexp, file, "$");
285 newXSproto("re::regname", XS_re_regname, file, ";$$");
286 newXSproto("re::regnames", XS_re_regnames, file, ";$");
287 newXSproto("re::regnames_iterinit", XS_re_regnames_iterinit, file, "");
288 newXSproto("re::regnames_iternext", XS_re_regnames_iternext, file, ";$");
289 newXSproto("re::regnames_count", XS_re_regnames_count, file, "");
300 Perl_croak(aTHX_ "Usage: UNIVERSAL::isa(reference, kind)");
302 SV * const sv = ST(0);
307 if (!SvOK(sv) || !(SvROK(sv) || (SvPOK(sv) && SvCUR(sv))
308 || (SvGMAGICAL(sv) && SvPOKp(sv) && SvCUR(sv))))
311 name = SvPV_nolen_const(ST(1));
313 ST(0) = boolSV(sv_derived_from(sv, name));
329 Perl_croak(aTHX_ "Usage: UNIVERSAL::can(object-ref, method)");
335 if (!SvOK(sv) || !(SvROK(sv) || (SvPOK(sv) && SvCUR(sv))
336 || (SvGMAGICAL(sv) && SvPOKp(sv) && SvCUR(sv))))
339 name = SvPV_nolen_const(ST(1));
348 pkg = gv_stashsv(sv, 0);
352 GV * const gv = gv_fetchmethod_autoload(pkg, name, FALSE);
354 rv = sv_2mortal(newRV((SV*)GvCV(gv)));
361 XS(XS_UNIVERSAL_DOES)
368 Perl_croak(aTHX_ "Usage: invocant->DOES(kind)");
370 SV * const sv = ST(0);
373 name = SvPV_nolen_const(ST(1));
374 if (sv_does( sv, name ))
381 XS(XS_UNIVERSAL_VERSION)
393 sv = (SV*)SvRV(ST(0));
395 Perl_croak(aTHX_ "Cannot find version of an unblessed reference");
399 pkg = gv_stashsv(ST(0), 0);
402 gvp = pkg ? (GV**)hv_fetchs(pkg, "VERSION", FALSE) : NULL;
404 if (gvp && isGV(gv = *gvp) && (sv = GvSV(gv)) && SvOK(sv)) {
405 SV * const nsv = sv_newmortal();
408 if ( !sv_derived_from(sv, "version"))
409 upg_version(sv, FALSE);
413 sv = (SV*)&PL_sv_undef;
422 const char * const name = HvNAME_get(pkg);
424 "%s does not define $%s::VERSION--version check failed",
428 "%s defines neither package nor VERSION--version check failed",
429 SvPVx_nolen_const(ST(0)) );
433 if ( !sv_derived_from(req, "version")) {
434 /* req may very well be R/O, so create a new object */
435 req = sv_2mortal( new_version(req) );
438 if ( vcmp( req, sv ) > 0 ) {
439 if ( hv_exists((HV*)SvRV(req), "qv", 2 ) ) {
440 Perl_croak(aTHX_ "%s version %"SVf" required--"
441 "this is only version %"SVf"", HvNAME_get(pkg),
442 SVfARG(vnormal(req)),
443 SVfARG(vnormal(sv)));
445 Perl_croak(aTHX_ "%s version %"SVf" required--"
446 "this is only version %"SVf"", HvNAME_get(pkg),
447 SVfARG(vstringify(req)),
448 SVfARG(vstringify(sv)));
454 if ( SvOK(sv) && sv_derived_from(sv, "version") ) {
455 ST(0) = vstringify(sv);
469 Perl_croak(aTHX_ "Usage: version::new(class, version)");
474 const char * const classname =
475 sv_isobject(ST(0)) /* get the class if called as an object method */
476 ? HvNAME(SvSTASH(SvRV(ST(0))))
477 : (char *)SvPV_nolen(ST(0));
479 if ( items == 1 || vs == &PL_sv_undef ) { /* no param or explicit undef */
480 /* create empty object */
484 else if ( items == 3 ) {
486 Perl_sv_setpvf(aTHX_ vs,"v%s",SvPV_nolen_const(ST(2)));
489 rv = new_version(vs);
490 if ( strcmp(classname,"version") != 0 ) /* inherited new() */
491 sv_bless(rv, gv_stashpv(classname, GV_ADD));
493 PUSHs(sv_2mortal(rv));
499 XS(XS_version_stringify)
505 Perl_croak(aTHX_ "Usage: version::stringify(lobj, ...)");
510 if (sv_derived_from(ST(0), "version")) {
514 Perl_croak(aTHX_ "lobj is not of type version");
516 PUSHs(sv_2mortal(vstringify(lobj)));
523 XS(XS_version_numify)
529 Perl_croak(aTHX_ "Usage: version::numify(lobj, ...)");
534 if (sv_derived_from(ST(0), "version")) {
538 Perl_croak(aTHX_ "lobj is not of type version");
540 PUSHs(sv_2mortal(vnumify(lobj)));
547 XS(XS_version_normal)
553 Perl_croak(aTHX_ "Usage: version::normal(lobj, ...)");
558 if (sv_derived_from(ST(0), "version")) {
562 Perl_croak(aTHX_ "lobj is not of type version");
564 PUSHs(sv_2mortal(vnormal(lobj)));
577 Perl_croak(aTHX_ "Usage: version::vcmp(lobj, ...)");
582 if (sv_derived_from(ST(0), "version")) {
586 Perl_croak(aTHX_ "lobj is not of type version");
592 const IV swap = (IV)SvIV(ST(2));
594 if ( ! sv_derived_from(robj, "version") )
596 robj = new_version(robj);
602 rs = newSViv(vcmp(rvs,lobj));
606 rs = newSViv(vcmp(lobj,rvs));
609 PUSHs(sv_2mortal(rs));
617 XS(XS_version_boolean)
623 Perl_croak(aTHX_ "Usage: version::boolean(lobj, ...)");
625 if (sv_derived_from(ST(0), "version")) {
626 SV * const lobj = SvRV(ST(0));
627 SV * const rs = newSViv( vcmp(lobj,new_version(newSVpvs("0"))) );
628 PUSHs(sv_2mortal(rs));
633 Perl_croak(aTHX_ "lobj is not of type version");
642 Perl_croak(aTHX_ "Usage: version::noop(lobj, ...)");
643 if (sv_derived_from(ST(0), "version"))
644 Perl_croak(aTHX_ "operation not supported with version object");
646 Perl_croak(aTHX_ "lobj is not of type version");
647 #ifndef HASATTRIBUTE_NORETURN
652 XS(XS_version_is_alpha)
658 Perl_croak(aTHX_ "Usage: version::is_alpha(lobj)");
660 if (sv_derived_from(ST(0), "version")) {
661 SV * const lobj = ST(0);
662 if ( hv_exists((HV*)SvRV(lobj), "alpha", 5 ) )
670 Perl_croak(aTHX_ "lobj is not of type version");
679 Perl_croak(aTHX_ "Usage: version::qv(ver)");
683 if ( !SvVOK(ver) ) { /* only need to do with if not already v-string */
684 SV * const rv = sv_newmortal();
685 sv_setsv(rv,ver); /* make a duplicate */
686 upg_version(rv, TRUE);
691 PUSHs(sv_2mortal(new_version(ver)));
705 Perl_croak(aTHX_ "Usage: utf8::is_utf8(sv)");
707 const SV * const sv = ST(0);
722 Perl_croak(aTHX_ "Usage: utf8::valid(sv)");
724 SV * const sv = ST(0);
726 const char * const s = SvPV_const(sv,len);
727 if (!SvUTF8(sv) || is_utf8_string((const U8*)s,len))
741 Perl_croak(aTHX_ "Usage: utf8::encode(sv)");
742 sv_utf8_encode(ST(0));
752 Perl_croak(aTHX_ "Usage: utf8::decode(sv)");
754 SV * const sv = ST(0);
755 const bool RETVAL = sv_utf8_decode(sv);
756 ST(0) = boolSV(RETVAL);
768 Perl_croak(aTHX_ "Usage: utf8::upgrade(sv)");
770 SV * const sv = ST(0);
774 RETVAL = sv_utf8_upgrade(sv);
775 XSprePUSH; PUSHi((IV)RETVAL);
780 XS(XS_utf8_downgrade)
785 if (items < 1 || items > 2)
786 Perl_croak(aTHX_ "Usage: utf8::downgrade(sv, failok=0)");
788 SV * const sv = ST(0);
789 const bool failok = (items < 2) ? 0 : (int)SvIV(ST(1));
790 const bool RETVAL = sv_utf8_downgrade(sv, failok);
792 ST(0) = boolSV(RETVAL);
798 XS(XS_utf8_native_to_unicode)
802 const UV uv = SvUV(ST(0));
806 Perl_croak(aTHX_ "Usage: utf8::native_to_unicode(sv)");
808 ST(0) = sv_2mortal(newSViv(NATIVE_TO_UNI(uv)));
812 XS(XS_utf8_unicode_to_native)
816 const UV uv = SvUV(ST(0));
820 Perl_croak(aTHX_ "Usage: utf8::unicode_to_native(sv)");
822 ST(0) = sv_2mortal(newSViv(UNI_TO_NATIVE(uv)));
826 XS(XS_Internals_SvREADONLY) /* This is dangerous stuff. */
830 SV * const sv = SvRV(ST(0));
839 else if (items == 2) {
845 /* I hope you really know what you are doing. */
850 XSRETURN_UNDEF; /* Can't happen. */
853 XS(XS_Internals_SvREFCNT) /* This is dangerous stuff. */
857 SV * const sv = SvRV(ST(0));
861 XSRETURN_IV(SvREFCNT(sv) - 1); /* Minus the ref created for us. */
862 else if (items == 2) {
863 /* I hope you really know what you are doing. */
864 SvREFCNT(sv) = SvIV(ST(1));
865 XSRETURN_IV(SvREFCNT(sv));
867 XSRETURN_UNDEF; /* Can't happen. */
870 XS(XS_Internals_hv_clear_placehold)
877 Perl_croak(aTHX_ "Usage: UNIVERSAL::hv_clear_placeholders(hv)");
879 HV * const hv = (HV *) SvRV(ST(0));
880 hv_clear_placeholders(hv);
885 XS(XS_Regexp_DESTROY)
891 XS(XS_PerlIO_get_layers)
896 if (items < 1 || items % 2 == 0)
897 Perl_croak(aTHX_ "Usage: PerlIO_get_layers(filehandle[,args])");
904 bool details = FALSE;
908 for (svp = MARK + 2; svp <= SP; svp += 2) {
909 SV * const * const varp = svp;
910 SV * const * const valp = svp + 1;
912 const char * const key = SvPV_const(*varp, klen);
916 if (klen == 5 && memEQ(key, "input", 5)) {
917 input = SvTRUE(*valp);
922 if (klen == 6 && memEQ(key, "output", 6)) {
923 input = !SvTRUE(*valp);
928 if (klen == 7 && memEQ(key, "details", 7)) {
929 details = SvTRUE(*valp);
936 "get_layers: unknown argument '%s'",
948 if (SvROK(sv) && isGV(SvRV(sv)))
951 gv = gv_fetchsv(sv, 0, SVt_PVIO);
954 if (gv && (io = GvIO(gv))) {
956 AV* const av = PerlIO_get_layers(aTHX_ input ?
957 IoIFP(io) : IoOFP(io));
959 const I32 last = av_len(av);
962 for (i = last; i >= 0; i -= 3) {
963 SV * const * const namsvp = av_fetch(av, i - 2, FALSE);
964 SV * const * const argsvp = av_fetch(av, i - 1, FALSE);
965 SV * const * const flgsvp = av_fetch(av, i, FALSE);
967 const bool namok = namsvp && *namsvp && SvPOK(*namsvp);
968 const bool argok = argsvp && *argsvp && SvPOK(*argsvp);
969 const bool flgok = flgsvp && *flgsvp && SvIOK(*flgsvp);
973 ? newSVpvn(SvPVX_const(*namsvp), SvCUR(*namsvp))
976 ? newSVpvn(SvPVX_const(*argsvp), SvCUR(*argsvp))
979 XPUSHi(SvIVX(*flgsvp));
981 XPUSHs(&PL_sv_undef);
986 XPUSHs(Perl_newSVpvf(aTHX_ "%"SVf"(%"SVf")",
990 XPUSHs(Perl_newSVpvf(aTHX_ "%"SVf,
993 XPUSHs(&PL_sv_undef);
996 const IV flags = SvIVX(*flgsvp);
998 if (flags & PERLIO_F_UTF8) {
999 XPUSHs(newSVpvs("utf8"));
1016 XS(XS_Internals_hash_seed)
1019 /* Using dXSARGS would also have dITEM and dSP,
1020 * which define 2 unused local variables. */
1022 PERL_UNUSED_ARG(cv);
1023 PERL_UNUSED_VAR(mark);
1024 XSRETURN_UV(PERL_HASH_SEED);
1027 XS(XS_Internals_rehash_seed)
1030 /* Using dXSARGS would also have dITEM and dSP,
1031 * which define 2 unused local variables. */
1033 PERL_UNUSED_ARG(cv);
1034 PERL_UNUSED_VAR(mark);
1035 XSRETURN_UV(PL_rehash_seed);
1038 XS(XS_Internals_HvREHASH) /* Subject to change */
1042 PERL_UNUSED_ARG(cv);
1044 const HV * const hv = (HV *) SvRV(ST(0));
1045 if (items == 1 && SvTYPE(hv) == SVt_PVHV) {
1052 Perl_croak(aTHX_ "Internals::HvREHASH $hashref");
1060 Perl_croak(aTHX_ "Usage: %s(%s)", "re::is_regexp", "sv");
1061 PERL_UNUSED_VAR(cv); /* -W */
1062 PERL_UNUSED_VAR(ax); /* -Wall */
1066 if ( Perl_get_re_arg( aTHX_ sv, 0, NULL ) )
1083 if (items < 1 || items > 2)
1084 Perl_croak(aTHX_ "Usage: %s(%s)", "re::regname", "name[, all ]");
1085 PERL_UNUSED_VAR(cv); /* -W */
1086 PERL_UNUSED_VAR(ax); /* -Wall */
1091 regexp *re = PL_curpm ? PM_GETRE(PL_curpm) : NULL;
1100 if (SvPOK(sv) && re && re->paren_names) {
1101 bufs = CALLREG_NAMEDBUF_FETCH(re,sv,all && SvTRUE(all));
1103 if (all && SvTRUE(all))
1104 XPUSHs(newRV(bufs));
1106 XPUSHs(SvREFCNT_inc(bufs));
1121 if (items < 0 || items > 1)
1122 Perl_croak(aTHX_ "Usage: %s(%s)", "re::regnames", "[all]");
1123 PERL_UNUSED_VAR(cv); /* -W */
1124 PERL_UNUSED_VAR(ax); /* -Wall */
1128 regexp *re = PL_curpm ? PM_GETRE(PL_curpm) : NULL;
1137 if (re && re->paren_names) {
1138 HV *hv= re->paren_names;
1139 (void)hv_iterinit(hv);
1141 HE *temphe = hv_iternext_flags(hv,0);
1145 SV* sv_dat = HeVAL(temphe);
1146 I32 *nums = (I32*)SvPVX(sv_dat);
1147 for ( i = 0; i < SvIVX(sv_dat); i++ ) {
1148 if ((I32)(re->lastcloseparen) >= nums[i] &&
1149 re->offs[nums[i]].start != -1 &&
1150 re->offs[nums[i]].end != -1)
1156 if (parno || (all && SvTRUE(all))) {
1158 char *pv = HePV(temphe, len);
1159 if ( GIMME_V == G_ARRAY )
1160 XPUSHs(newSVpvn(pv,len));
1168 if ( GIMME_V == G_ARRAY )
1179 XS(XS_re_regnames_iterinit)
1184 Perl_croak(aTHX_ "Usage: re::regnames_iterinit()");
1185 PERL_UNUSED_VAR(cv); /* -W */
1186 PERL_UNUSED_VAR(ax); /* -Wall */
1189 regexp *re = PL_curpm ? PM_GETRE(PL_curpm) : NULL;
1190 if (re && re->paren_names) {
1191 (void)hv_iterinit(re->paren_names);
1192 XPUSHs(newSViv(HvTOTALKEYS(re->paren_names)));
1202 XS(XS_re_regnames_iternext)
1206 if (items < 0 || items > 1)
1207 Perl_croak(aTHX_ "Usage: %s(%s)", "re::regnames_iternext", "[all]");
1208 PERL_UNUSED_VAR(cv); /* -W */
1209 PERL_UNUSED_VAR(ax); /* -Wall */
1213 regexp *re = PL_curpm ? PM_GETRE(PL_curpm) : NULL;
1220 if (re && re->paren_names) {
1221 HV *hv= re->paren_names;
1223 HE *temphe = hv_iternext_flags(hv,0);
1227 SV* sv_dat = HeVAL(temphe);
1228 I32 *nums = (I32*)SvPVX(sv_dat);
1229 for ( i = 0; i < SvIVX(sv_dat); i++ ) {
1230 if ((I32)(re->lastcloseparen) >= nums[i] &&
1231 re->offs[nums[i]].start != -1 &&
1232 re->offs[nums[i]].end != -1)
1238 if (parno || (all && SvTRUE(all))) {
1240 char *pv = HePV(temphe, len);
1241 XPUSHs(newSVpvn(pv,len));
1256 XS(XS_re_regnames_count)
1258 regexp *re = PL_curpm ? PM_GETRE(PL_curpm) : NULL;
1263 Perl_croak(aTHX_ "Usage: %s(%s)", "re::regnames_count", "");
1264 PERL_UNUSED_VAR(cv); /* -W */
1265 PERL_UNUSED_VAR(ax); /* -Wall */
1268 if (re && re->paren_names) {
1269 XPUSHs(newSViv(HvTOTALKEYS(re->paren_names)));
1280 * c-indentation-style: bsd
1282 * indent-tabs-mode: t
1285 * ex: set ts=8 sts=4 sw=4 noet: