-#include "EXTERN.h"
-#define PERL_IN_UNIVERSAL_C
-#include "perl.h"
+/* universal.c
+ *
+ * Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004,
+ * 2005, 2006, 2007, 2008 by Larry Wall and others
+ *
+ * You may distribute under the terms of either the GNU General Public
+ * License or the Artistic License, as specified in the README file.
+ *
+ */
/*
- * Contributed by Graham Barr <Graham.Barr@tiuk.ti.com>
- * The main guts of traverse_isa was actually copied from gv_fetchmeth
+ * '"The roots of those mountains must be roots indeed; there must be
+ * great secrets buried there which have not been discovered since the
+ * beginning."' --Gandalf, relating Gollum's history
+ *
+ * [p.54 of _The Lord of the Rings_, I/ii: "The Shadow of the Past"]
*/
-STATIC SV *
-S_isa_lookup(pTHX_ HV *stash, const char *name, int len, int level)
-{
- AV* av;
- GV* gv;
- GV** gvp;
- HV* hv = Nullhv;
- SV* subgen = Nullsv;
+/* This file contains the code that implements the functions in Perl's
+ * UNIVERSAL package, such as UNIVERSAL->can().
+ *
+ * It is also used to store XS functions that need to be present in
+ * miniperl for a lack of a better place to put them. It might be
+ * clever to move them to seperate XS files which would then be pulled
+ * in by some to-be-written build process.
+ */
- if (!stash)
- return &PL_sv_undef;
+#include "EXTERN.h"
+#define PERL_IN_UNIVERSAL_C
+#include "perl.h"
- if (strEQ(HvNAME(stash), name))
- return &PL_sv_yes;
+#ifdef USE_PERLIO
+#include "perliol.h" /* For the PERLIO_F_XXX */
+#endif
- if (level > 100)
- Perl_croak(aTHX_ "Recursive inheritance detected in package '%s'",
- HvNAME(stash));
+static HV *
+S_get_isa_hash(pTHX_ HV *const stash)
+{
+ dVAR;
+ struct mro_meta *const meta = HvMROMETA(stash);
+
+ PERL_ARGS_ASSERT_GET_ISA_HASH;
+
+ if (!meta->isa) {
+ AV *const isa = mro_get_linear_isa(stash);
+ if (!meta->isa) {
+ HV *const isa_hash = newHV();
+ /* Linearisation didn't build it for us, so do it here. */
+ SV *const *svp = AvARRAY(isa);
+ SV *const *const svp_end = svp + AvFILLp(isa) + 1;
+ const HEK *const canon_name = HvNAME_HEK(stash);
+
+ while (svp < svp_end) {
+ (void) hv_store_ent(isa_hash, *svp++, &PL_sv_undef, 0);
+ }
- gvp = (GV**)hv_fetch(stash, "::ISA::CACHE::", 14, FALSE);
+ (void) hv_common(isa_hash, NULL, HEK_KEY(canon_name),
+ HEK_LEN(canon_name), HEK_FLAGS(canon_name),
+ HV_FETCH_ISSTORE, &PL_sv_undef,
+ HEK_HASH(canon_name));
+ (void) hv_store(isa_hash, "UNIVERSAL", 9, &PL_sv_undef, 0);
- if (gvp && (gv = *gvp) != (GV*)&PL_sv_undef && (subgen = GvSV(gv))
- && (hv = GvHV(gv)))
- {
- if (SvIV(subgen) == PL_sub_generation) {
- SV* sv;
- SV** svp = (SV**)hv_fetch(hv, name, len, FALSE);
- if (svp && (sv = *svp) != (SV*)&PL_sv_undef) {
- DEBUG_o( Perl_deb(aTHX_ "Using cached ISA %s for package %s\n",
- name, HvNAME(stash)) );
- return sv;
- }
- }
- else {
- DEBUG_o( Perl_deb(aTHX_ "ISA Cache in package %s is stale\n",
- HvNAME(stash)) );
- hv_clear(hv);
- sv_setiv(subgen, PL_sub_generation);
+ SvREADONLY_on(isa_hash);
+
+ meta->isa = isa_hash;
}
}
+ return meta->isa;
+}
- gvp = (GV**)hv_fetch(stash,"ISA",3,FALSE);
+/*
+ * Contributed by Graham Barr <Graham.Barr@tiuk.ti.com>
+ * The main guts of traverse_isa was actually copied from gv_fetchmeth
+ */
- if (gvp && (gv = *gvp) != (GV*)&PL_sv_undef && (av = GvAV(gv))) {
- if (!hv || !subgen) {
- gvp = (GV**)hv_fetch(stash, "::ISA::CACHE::", 14, TRUE);
+STATIC bool
+S_isa_lookup(pTHX_ HV *stash, const char * const name)
+{
+ dVAR;
+ const struct mro_meta *const meta = HvMROMETA(stash);
+ HV *const isa = meta->isa ? meta->isa : S_get_isa_hash(aTHX_ stash);
+ STRLEN len = strlen(name);
+ const HV *our_stash;
+
+ PERL_ARGS_ASSERT_ISA_LOOKUP;
+
+ if (hv_common(isa, NULL, name, len, 0 /* No "UTF-8" flag possible with only
+ a char * argument*/,
+ HV_FETCH_ISEXISTS, NULL, 0)) {
+ /* Direct name lookup worked. */
+ return TRUE;
+ }
- gv = *gvp;
+ /* A stash/class can go by many names (ie. User == main::User), so
+ we use the name in the stash itself, which is canonical. */
+ our_stash = gv_stashpvn(name, len, 0);
- if (SvTYPE(gv) != SVt_PVGV)
- gv_init(gv, stash, "::ISA::CACHE::", 14, TRUE);
+ if (our_stash) {
+ HEK *const canon_name = HvNAME_HEK(our_stash);
- if (!hv)
- hv = GvHVn(gv);
- if (!subgen) {
- subgen = newSViv(PL_sub_generation);
- GvSV(gv) = subgen;
- }
- }
- if (hv) {
- SV** svp = AvARRAY(av);
- /* NOTE: No support for tied ISA */
- I32 items = AvFILLp(av) + 1;
- while (items--) {
- SV* sv = *svp++;
- HV* basestash = gv_stashsv(sv, FALSE);
- if (!basestash) {
- if (ckWARN(WARN_MISC))
- Perl_warner(aTHX_ WARN_SYNTAX,
- "Can't locate package %s for @%s::ISA",
- SvPVX(sv), HvNAME(stash));
- continue;
- }
- if (&PL_sv_yes == isa_lookup(basestash, name, len, level + 1)) {
- (void)hv_store(hv,name,len,&PL_sv_yes,0);
- return &PL_sv_yes;
- }
- }
- (void)hv_store(hv,name,len,&PL_sv_no,0);
+ if (hv_common(isa, NULL, HEK_KEY(canon_name), HEK_LEN(canon_name),
+ HEK_FLAGS(canon_name),
+ HV_FETCH_ISEXISTS, NULL, HEK_HASH(canon_name))) {
+ return TRUE;
}
}
- return boolSV(strEQ(name, "UNIVERSAL"));
+ return FALSE;
}
/*
+=head1 SV Manipulation Functions
+
=for apidoc sv_derived_from
-Returns a boolean indicating whether the SV is derived from the specified
-class. This is the function that implements C<UNIVERSAL::isa>. It works
-for class names as well as for objects.
+Returns a boolean indicating whether the SV is derived from the specified class
+I<at the C level>. To check derivation at the Perl level, call C<isa()> as a
+normal Perl method.
=cut
*/
bool
-Perl_sv_derived_from(pTHX_ SV *sv, const char *name)
+Perl_sv_derived_from(pTHX_ SV *sv, const char *const name)
{
- char *type;
+ dVAR;
HV *stash;
- stash = Nullhv;
- type = Nullch;
+ PERL_ARGS_ASSERT_SV_DERIVED_FROM;
- if (SvGMAGICAL(sv))
- mg_get(sv) ;
+ SvGETMAGIC(sv);
if (SvROK(sv)) {
+ const char *type;
sv = SvRV(sv);
type = sv_reftype(sv,0);
- if (SvOBJECT(sv))
- stash = SvSTASH(sv);
+ if (type && strEQ(type,name))
+ return TRUE;
+ stash = SvOBJECT(sv) ? SvSTASH(sv) : NULL;
}
else {
- stash = gv_stashsv(sv, FALSE);
+ stash = gv_stashsv(sv, 0);
}
- return (type && strEQ(type,name)) ||
- (stash && isa_lookup(stash, name, strlen(name), 0) == &PL_sv_yes)
- ? TRUE
- : FALSE ;
+ return stash ? isa_lookup(stash, name) : FALSE;
}
+/*
+=for apidoc sv_does
+
+Returns a boolean indicating whether the SV performs a specific, named role.
+The SV can be a Perl object or the name of a Perl class.
+
+=cut
+*/
+
#include "XSUB.h"
-void XS_UNIVERSAL_isa(pTHXo_ CV *cv);
-void XS_UNIVERSAL_can(pTHXo_ CV *cv);
-void XS_UNIVERSAL_VERSION(pTHXo_ CV *cv);
+bool
+Perl_sv_does(pTHX_ SV *sv, const char *const name)
+{
+ const char *classname;
+ bool does_it;
+ SV *methodname;
+ dSP;
+
+ PERL_ARGS_ASSERT_SV_DOES;
+
+ ENTER;
+ SAVETMPS;
+
+ SvGETMAGIC(sv);
+
+ if (!SvOK(sv) || !(SvROK(sv) || (SvPOK(sv) && SvCUR(sv))
+ || (SvGMAGICAL(sv) && SvPOKp(sv) && SvCUR(sv))))
+ return FALSE;
+
+ if (sv_isobject(sv)) {
+ classname = sv_reftype(SvRV(sv),TRUE);
+ } else {
+ classname = SvPV_nolen(sv);
+ }
+
+ if (strEQ(name,classname))
+ return TRUE;
+
+ PUSHMARK(SP);
+ XPUSHs(sv);
+ mXPUSHs(newSVpv(name, 0));
+ PUTBACK;
+
+ methodname = newSVpvs_flags("isa", SVs_TEMP);
+ /* ugly hack: use the SvSCREAM flag so S_method_common
+ * can figure out we're calling DOES() and not isa(),
+ * and report eventual errors correctly. --rgs */
+ SvSCREAM_on(methodname);
+ call_sv(methodname, G_SCALAR | G_METHOD);
+ SPAGAIN;
+
+ does_it = SvTRUE( TOPs );
+ FREETMPS;
+ LEAVE;
+
+ return does_it;
+}
+
+PERL_XS_EXPORT_C void XS_UNIVERSAL_isa(pTHX_ CV *cv);
+PERL_XS_EXPORT_C void XS_UNIVERSAL_can(pTHX_ CV *cv);
+PERL_XS_EXPORT_C void XS_UNIVERSAL_DOES(pTHX_ CV *cv);
+PERL_XS_EXPORT_C void XS_UNIVERSAL_VERSION(pTHX_ CV *cv);
+XS(XS_version_new);
+XS(XS_version_stringify);
+XS(XS_version_numify);
+XS(XS_version_normal);
+XS(XS_version_vcmp);
+XS(XS_version_boolean);
+#ifdef HASATTRIBUTE_NORETURN
+XS(XS_version_noop) __attribute__noreturn__;
+#else
+XS(XS_version_noop);
+#endif
+XS(XS_version_is_alpha);
+XS(XS_version_qv);
+XS(XS_version_is_qv);
+XS(XS_utf8_is_utf8);
XS(XS_utf8_valid);
XS(XS_utf8_encode);
XS(XS_utf8_decode);
XS(XS_utf8_downgrade);
XS(XS_utf8_unicode_to_native);
XS(XS_utf8_native_to_unicode);
+XS(XS_Internals_SvREADONLY);
+XS(XS_Internals_SvREFCNT);
+XS(XS_Internals_hv_clear_placehold);
+XS(XS_PerlIO_get_layers);
+XS(XS_Internals_hash_seed);
+XS(XS_Internals_rehash_seed);
+XS(XS_Internals_HvREHASH);
+XS(XS_re_is_regexp);
+XS(XS_re_regname);
+XS(XS_re_regnames);
+XS(XS_re_regnames_count);
+XS(XS_re_regexp_pattern);
+XS(XS_Tie_Hash_NamedCapture_FETCH);
+XS(XS_Tie_Hash_NamedCapture_STORE);
+XS(XS_Tie_Hash_NamedCapture_DELETE);
+XS(XS_Tie_Hash_NamedCapture_CLEAR);
+XS(XS_Tie_Hash_NamedCapture_EXISTS);
+XS(XS_Tie_Hash_NamedCapture_FIRSTK);
+XS(XS_Tie_Hash_NamedCapture_NEXTK);
+XS(XS_Tie_Hash_NamedCapture_SCALAR);
+XS(XS_Tie_Hash_NamedCapture_flags);
void
Perl_boot_core_UNIVERSAL(pTHX)
{
- char *file = __FILE__;
+ dVAR;
+ static const char file[] = __FILE__;
newXS("UNIVERSAL::isa", XS_UNIVERSAL_isa, file);
newXS("UNIVERSAL::can", XS_UNIVERSAL_can, file);
+ newXS("UNIVERSAL::DOES", XS_UNIVERSAL_DOES, file);
newXS("UNIVERSAL::VERSION", XS_UNIVERSAL_VERSION, file);
+ {
+ /* register the overloading (type 'A') magic */
+ PL_amagic_generation++;
+ /* Make it findable via fetchmethod */
+ newXS("version::()", XS_version_noop, file);
+ newXS("version::new", XS_version_new, file);
+ newXS("version::parse", XS_version_new, file);
+ newXS("version::(\"\"", XS_version_stringify, file);
+ newXS("version::stringify", XS_version_stringify, file);
+ newXS("version::(0+", XS_version_numify, file);
+ newXS("version::numify", XS_version_numify, file);
+ newXS("version::normal", XS_version_normal, file);
+ newXS("version::(cmp", XS_version_vcmp, file);
+ newXS("version::(<=>", XS_version_vcmp, file);
+ newXS("version::vcmp", XS_version_vcmp, file);
+ newXS("version::(bool", XS_version_boolean, file);
+ newXS("version::boolean", XS_version_boolean, file);
+ newXS("version::(nomethod", XS_version_noop, file);
+ newXS("version::noop", XS_version_noop, file);
+ newXS("version::is_alpha", XS_version_is_alpha, file);
+ newXS("version::qv", XS_version_qv, file);
+ newXS("version::declare", XS_version_qv, file);
+ newXS("version::is_qv", XS_version_is_qv, file);
+ }
+ newXS("utf8::is_utf8", XS_utf8_is_utf8, file);
newXS("utf8::valid", XS_utf8_valid, file);
newXS("utf8::encode", XS_utf8_encode, file);
newXS("utf8::decode", XS_utf8_decode, file);
newXS("utf8::downgrade", XS_utf8_downgrade, file);
newXS("utf8::native_to_unicode", XS_utf8_native_to_unicode, file);
newXS("utf8::unicode_to_native", XS_utf8_unicode_to_native, file);
+ newXSproto("Internals::SvREADONLY",XS_Internals_SvREADONLY, file, "\\[$%@];$");
+ newXSproto("Internals::SvREFCNT",XS_Internals_SvREFCNT, file, "\\[$%@];$");
+ newXSproto("Internals::hv_clear_placeholders",
+ XS_Internals_hv_clear_placehold, file, "\\%");
+ newXSproto("PerlIO::get_layers",
+ XS_PerlIO_get_layers, file, "*;@");
+ /* Providing a Regexp::DESTROY fixes #21347. See test in t/op/ref.t */
+ CvFILE(newCONSTSUB(get_hv("Regexp::", GV_ADD), "DESTROY", NULL))
+ = (char *)file;
+ newXSproto("Internals::hash_seed",XS_Internals_hash_seed, file, "");
+ newXSproto("Internals::rehash_seed",XS_Internals_rehash_seed, file, "");
+ newXSproto("Internals::HvREHASH", XS_Internals_HvREHASH, file, "\\%");
+ newXSproto("re::is_regexp", XS_re_is_regexp, file, "$");
+ newXSproto("re::regname", XS_re_regname, file, ";$$");
+ newXSproto("re::regnames", XS_re_regnames, file, ";$");
+ newXSproto("re::regnames_count", XS_re_regnames_count, file, "");
+ newXSproto("re::regexp_pattern", XS_re_regexp_pattern, file, "$");
+ newXS("Tie::Hash::NamedCapture::FETCH", XS_Tie_Hash_NamedCapture_FETCH, file);
+ newXS("Tie::Hash::NamedCapture::STORE", XS_Tie_Hash_NamedCapture_STORE, file);
+ newXS("Tie::Hash::NamedCapture::DELETE", XS_Tie_Hash_NamedCapture_DELETE, file);
+ newXS("Tie::Hash::NamedCapture::CLEAR", XS_Tie_Hash_NamedCapture_CLEAR, file);
+ newXS("Tie::Hash::NamedCapture::EXISTS", XS_Tie_Hash_NamedCapture_EXISTS, file);
+ newXS("Tie::Hash::NamedCapture::FIRSTKEY", XS_Tie_Hash_NamedCapture_FIRSTK, file);
+ newXS("Tie::Hash::NamedCapture::NEXTKEY", XS_Tie_Hash_NamedCapture_NEXTK, file);
+ newXS("Tie::Hash::NamedCapture::SCALAR", XS_Tie_Hash_NamedCapture_SCALAR, file);
+ newXS("Tie::Hash::NamedCapture::flags", XS_Tie_Hash_NamedCapture_flags, file);
}
+/*
+=for apidoc croak_xs_usage
+
+A specialised variant of C<croak()> for emitting the usage message for xsubs
+
+ croak_xs_usage(cv, "eee_yow");
+
+works out the package name and subroutine name from C<cv>, and then calls
+C<croak()>. Hence if C<cv> is C<&ouch::awk>, it would call C<croak> as:
+
+ Perl_croak(aTHX_ "Usage %s::%s(%s)", "ouch" "awk", "eee_yow");
+
+=cut
+*/
+
+void
+Perl_croak_xs_usage(pTHX_ const CV *const cv, const char *const params)
+{
+ const GV *const gv = CvGV(cv);
+
+ PERL_ARGS_ASSERT_CROAK_XS_USAGE;
+
+ if (gv) {
+ const char *const gvname = GvNAME(gv);
+ const HV *const stash = GvSTASH(gv);
+ const char *const hvname = stash ? HvNAME_get(stash) : NULL;
+
+ if (hvname)
+ Perl_croak(aTHX_ "Usage: %s::%s(%s)", hvname, gvname, params);
+ else
+ Perl_croak(aTHX_ "Usage: %s(%s)", gvname, params);
+ } else {
+ /* Pants. I don't think that it should be possible to get here. */
+ Perl_croak(aTHX_ "Usage: CODE(0x%"UVxf")(%s)", PTR2UV(cv), params);
+ }
+}
XS(XS_UNIVERSAL_isa)
{
+ dVAR;
dXSARGS;
- SV *sv;
- char *name;
- STRLEN n_a;
if (items != 2)
- Perl_croak(aTHX_ "Usage: UNIVERSAL::isa(reference, kind)");
-
- sv = ST(0);
+ croak_xs_usage(cv, "reference, kind");
+ else {
+ SV * const sv = ST(0);
+ const char *name;
- if (SvGMAGICAL(sv))
- mg_get(sv);
+ SvGETMAGIC(sv);
- if (!SvOK(sv) || !(SvROK(sv) || (SvPOK(sv) && SvCUR(sv))))
- XSRETURN_UNDEF;
+ if (!SvOK(sv) || !(SvROK(sv) || (SvPOK(sv) && SvCUR(sv))
+ || (SvGMAGICAL(sv) && SvPOKp(sv) && SvCUR(sv))))
+ XSRETURN_UNDEF;
- name = (char *)SvPV(ST(1),n_a);
+ name = SvPV_nolen_const(ST(1));
- ST(0) = boolSV(sv_derived_from(sv, name));
- XSRETURN(1);
+ ST(0) = boolSV(sv_derived_from(sv, name));
+ XSRETURN(1);
+ }
}
XS(XS_UNIVERSAL_can)
{
+ dVAR;
dXSARGS;
SV *sv;
- char *name;
+ const char *name;
SV *rv;
HV *pkg = NULL;
- STRLEN n_a;
if (items != 2)
- Perl_croak(aTHX_ "Usage: UNIVERSAL::can(object-ref, method)");
+ croak_xs_usage(cv, "object-ref, method");
sv = ST(0);
- if (SvGMAGICAL(sv))
- mg_get(sv);
+ SvGETMAGIC(sv);
- if (!SvOK(sv) || !(SvROK(sv) || (SvPOK(sv) && SvCUR(sv))))
+ if (!SvOK(sv) || !(SvROK(sv) || (SvPOK(sv) && SvCUR(sv))
+ || (SvGMAGICAL(sv) && SvPOKp(sv) && SvCUR(sv))))
XSRETURN_UNDEF;
- name = (char *)SvPV(ST(1),n_a);
+ name = SvPV_nolen_const(ST(1));
rv = &PL_sv_undef;
if (SvROK(sv)) {
- sv = (SV*)SvRV(sv);
+ sv = MUTABLE_SV(SvRV(sv));
if (SvOBJECT(sv))
pkg = SvSTASH(sv);
}
else {
- pkg = gv_stashsv(sv, FALSE);
+ pkg = gv_stashsv(sv, 0);
}
if (pkg) {
- GV *gv = gv_fetchmethod_autoload(pkg, name, FALSE);
+ GV * const gv = gv_fetchmethod_autoload(pkg, name, FALSE);
if (gv && isGV(gv))
- rv = sv_2mortal(newRV((SV*)GvCV(gv)));
+ rv = sv_2mortal(newRV(MUTABLE_SV(GvCV(gv))));
}
ST(0) = rv;
XSRETURN(1);
}
+XS(XS_UNIVERSAL_DOES)
+{
+ dVAR;
+ dXSARGS;
+ PERL_UNUSED_ARG(cv);
+
+ if (items != 2)
+ Perl_croak(aTHX_ "Usage: invocant->DOES(kind)");
+ else {
+ SV * const sv = ST(0);
+ const char *name;
+
+ name = SvPV_nolen_const(ST(1));
+ if (sv_does( sv, name ))
+ XSRETURN_YES;
+
+ XSRETURN_NO;
+ }
+}
+
XS(XS_UNIVERSAL_VERSION)
{
+ dVAR;
dXSARGS;
HV *pkg;
GV **gvp;
GV *gv;
SV *sv;
- char *undef;
+ const char *undef;
+ PERL_UNUSED_ARG(cv);
if (SvROK(ST(0))) {
- sv = (SV*)SvRV(ST(0));
+ sv = MUTABLE_SV(SvRV(ST(0)));
if (!SvOBJECT(sv))
Perl_croak(aTHX_ "Cannot find version of an unblessed reference");
pkg = SvSTASH(sv);
}
else {
- pkg = gv_stashsv(ST(0), FALSE);
+ pkg = gv_stashsv(ST(0), 0);
}
- gvp = pkg ? (GV**)hv_fetch(pkg,"VERSION",7,FALSE) : Null(GV**);
+ gvp = pkg ? (GV**)hv_fetchs(pkg, "VERSION", FALSE) : NULL;
- if (gvp && isGV(gv = *gvp) && SvOK(sv = GvSV(gv))) {
- SV *nsv = sv_newmortal();
+ if (gvp && isGV(gv = *gvp) && (sv = GvSV(gv)) && SvOK(sv)) {
+ SV * const nsv = sv_newmortal();
sv_setsv(nsv, sv);
sv = nsv;
- undef = Nullch;
+ if ( !sv_derived_from(sv, "version"))
+ upg_version(sv, FALSE);
+ undef = NULL;
}
else {
- sv = (SV*)&PL_sv_undef;
+ sv = &PL_sv_undef;
undef = "(undef)";
}
if (items > 1) {
- STRLEN len;
SV *req = ST(1);
- if (undef)
- Perl_croak(aTHX_ "%s does not define $%s::VERSION--version check failed",
- HvNAME(pkg), HvNAME(pkg));
-
- if (!SvNIOK(sv) && SvPOK(sv)) {
- char *str = SvPVx(sv,len);
- while (len) {
- --len;
- /* XXX could DWIM "1.2.3" here */
- if (!isDIGIT(str[len]) && str[len] != '.' && str[len] != '_')
- break;
- }
- if (len) {
- if (SvNOK(req) && SvPOK(req)) {
- /* they said C<use Foo v1.2.3> and $Foo::VERSION
- * doesn't look like a float: do string compare */
- if (sv_cmp(req,sv) == 1) {
- Perl_croak(aTHX_ "%s v%"VDf" required--"
- "this is only v%"VDf,
- HvNAME(pkg), req, sv);
- }
- goto finish;
- }
- /* they said C<use Foo 1.002_003> and $Foo::VERSION
- * doesn't look like a float: force numeric compare */
- (void)SvUPGRADE(sv, SVt_PVNV);
- SvNVX(sv) = str_to_version(sv);
- SvPOK_off(sv);
- SvNOK_on(sv);
- }
+ if (undef) {
+ if (pkg) {
+ const char * const name = HvNAME_get(pkg);
+ Perl_croak(aTHX_
+ "%s does not define $%s::VERSION--version check failed",
+ name, name);
+ } else {
+ Perl_croak(aTHX_
+ "%s defines neither package nor VERSION--version check failed",
+ SvPVx_nolen_const(ST(0)) );
+ }
}
- /* if we get here, we're looking for a numeric comparison,
- * so force the required version into a float, even if they
- * said C<use Foo v1.2.3> */
- if (SvNOK(req) && SvPOK(req)) {
- NV n = SvNV(req);
- req = sv_newmortal();
- sv_setnv(req, n);
+
+ if ( !sv_derived_from(req, "version")) {
+ /* req may very well be R/O, so create a new object */
+ req = sv_2mortal( new_version(req) );
}
- if (SvNV(req) > SvNV(sv)) {
- Perl_croak(aTHX_ "%s version %s required--this is only version %s",
- HvNAME(pkg), SvPV_nolen(req), SvPV_nolen(sv,len));
+ if ( vcmp( req, sv ) > 0 ) {
+ if ( hv_exists(MUTABLE_HV(SvRV(req)), "qv", 2 ) ) {
+ Perl_croak(aTHX_ "%s version %"SVf" required--"
+ "this is only version %"SVf"", HvNAME_get(pkg),
+ SVfARG(vnormal(req)),
+ SVfARG(vnormal(sv)));
+ } else {
+ Perl_croak(aTHX_ "%s version %"SVf" required--"
+ "this is only version %"SVf"", HvNAME_get(pkg),
+ SVfARG(vstringify(req)),
+ SVfARG(vstringify(sv)));
+ }
}
+
}
-finish:
- ST(0) = sv;
+ if ( SvOK(sv) && sv_derived_from(sv, "version") ) {
+ ST(0) = vstringify(sv);
+ } else {
+ ST(0) = sv;
+ }
XSRETURN(1);
}
-XS(XS_utf8_valid)
+XS(XS_version_new)
{
+ dVAR;
dXSARGS;
- if (items != 1)
- Perl_croak(aTHX_ "Usage: utf8::valid(sv)");
+ if (items > 3)
+ croak_xs_usage(cv, "class, version");
+ SP -= items;
{
- SV * sv = ST(0);
- {
- STRLEN len;
- char *s = SvPV(sv,len);
- if (!SvUTF8(sv) || is_utf8_string((U8*)s,len))
- XSRETURN_YES;
- else
- XSRETURN_NO;
- }
+ SV *vs = ST(1);
+ SV *rv;
+ const char * const classname =
+ sv_isobject(ST(0)) /* get the class if called as an object method */
+ ? HvNAME(SvSTASH(SvRV(ST(0))))
+ : (char *)SvPV_nolen(ST(0));
+
+ if ( items == 1 || vs == &PL_sv_undef ) { /* no param or explicit undef */
+ /* create empty object */
+ vs = sv_newmortal();
+ sv_setpvs(vs,"");
+ }
+ else if ( items == 3 ) {
+ vs = sv_newmortal();
+ Perl_sv_setpvf(aTHX_ vs,"v%s",SvPV_nolen_const(ST(2)));
+ }
+
+ rv = new_version(vs);
+ if ( strcmp(classname,"version") != 0 ) /* inherited new() */
+ sv_bless(rv, gv_stashpv(classname, GV_ADD));
+
+ mPUSHs(rv);
+ PUTBACK;
+ return;
}
+}
+
+XS(XS_version_stringify)
+{
+ dVAR;
+ dXSARGS;
+ if (items < 1)
+ croak_xs_usage(cv, "lobj, ...");
+ SP -= items;
+ {
+ SV * lobj;
+
+ if (sv_derived_from(ST(0), "version")) {
+ lobj = SvRV(ST(0));
+ }
+ else
+ Perl_croak(aTHX_ "lobj is not of type version");
+
+ mPUSHs(vstringify(lobj));
+
+ PUTBACK;
+ return;
+ }
+}
+
+XS(XS_version_numify)
+{
+ dVAR;
+ dXSARGS;
+ if (items < 1)
+ croak_xs_usage(cv, "lobj, ...");
+ SP -= items;
+ {
+ SV * lobj;
+
+ if (sv_derived_from(ST(0), "version")) {
+ lobj = SvRV(ST(0));
+ }
+ else
+ Perl_croak(aTHX_ "lobj is not of type version");
+
+ mPUSHs(vnumify(lobj));
+
+ PUTBACK;
+ return;
+ }
+}
+
+XS(XS_version_normal)
+{
+ dVAR;
+ dXSARGS;
+ if (items < 1)
+ croak_xs_usage(cv, "lobj, ...");
+ SP -= items;
+ {
+ SV * lobj;
+
+ if (sv_derived_from(ST(0), "version")) {
+ lobj = SvRV(ST(0));
+ }
+ else
+ Perl_croak(aTHX_ "lobj is not of type version");
+
+ mPUSHs(vnormal(lobj));
+
+ PUTBACK;
+ return;
+ }
+}
+
+XS(XS_version_vcmp)
+{
+ dVAR;
+ dXSARGS;
+ if (items < 1)
+ croak_xs_usage(cv, "lobj, ...");
+ SP -= items;
+ {
+ SV * lobj;
+
+ if (sv_derived_from(ST(0), "version")) {
+ lobj = SvRV(ST(0));
+ }
+ else
+ Perl_croak(aTHX_ "lobj is not of type version");
+
+ {
+ SV *rs;
+ SV *rvs;
+ SV * robj = ST(1);
+ const IV swap = (IV)SvIV(ST(2));
+
+ if ( ! sv_derived_from(robj, "version") )
+ {
+ robj = new_version(robj);
+ }
+ rvs = SvRV(robj);
+
+ if ( swap )
+ {
+ rs = newSViv(vcmp(rvs,lobj));
+ }
+ else
+ {
+ rs = newSViv(vcmp(lobj,rvs));
+ }
+
+ mPUSHs(rs);
+ }
+
+ PUTBACK;
+ return;
+ }
+}
+
+XS(XS_version_boolean)
+{
+ dVAR;
+ dXSARGS;
+ if (items < 1)
+ croak_xs_usage(cv, "lobj, ...");
+ SP -= items;
+ if (sv_derived_from(ST(0), "version")) {
+ SV * const lobj = SvRV(ST(0));
+ SV * const rs = newSViv( vcmp(lobj,new_version(newSVpvs("0"))) );
+ mPUSHs(rs);
+ PUTBACK;
+ return;
+ }
+ else
+ Perl_croak(aTHX_ "lobj is not of type version");
+}
+
+XS(XS_version_noop)
+{
+ dVAR;
+ dXSARGS;
+ if (items < 1)
+ croak_xs_usage(cv, "lobj, ...");
+ if (sv_derived_from(ST(0), "version"))
+ Perl_croak(aTHX_ "operation not supported with version object");
+ else
+ Perl_croak(aTHX_ "lobj is not of type version");
+#ifndef HASATTRIBUTE_NORETURN
XSRETURN_EMPTY;
+#endif
}
-XS(XS_utf8_encode)
+XS(XS_version_is_alpha)
{
+ dVAR;
dXSARGS;
if (items != 1)
- Perl_croak(aTHX_ "Usage: utf8::encode(sv)");
+ croak_xs_usage(cv, "lobj");
+ SP -= items;
+ if (sv_derived_from(ST(0), "version")) {
+ SV * const lobj = ST(0);
+ if ( hv_exists(MUTABLE_HV(SvRV(lobj)), "alpha", 5 ) )
+ XSRETURN_YES;
+ else
+ XSRETURN_NO;
+ PUTBACK;
+ return;
+ }
+ else
+ Perl_croak(aTHX_ "lobj is not of type version");
+}
+
+XS(XS_version_qv)
+{
+ dVAR;
+ dXSARGS;
+ PERL_UNUSED_ARG(cv);
+ SP -= items;
{
- SV * sv = ST(0);
+ SV * ver = ST(0);
+ SV * rv;
+ const char * classname = "";
+ if ( items == 2 && (ST(1)) != &PL_sv_undef ) {
+ /* getting called as object or class method */
+ ver = ST(1);
+ classname =
+ sv_isobject(ST(0)) /* class called as an object method */
+ ? HvNAME_get(SvSTASH(SvRV(ST(0))))
+ : (char *)SvPV_nolen(ST(0));
+ }
+ if ( !SvVOK(ver) ) { /* not already a v-string */
+ rv = sv_newmortal();
+ sv_setsv(rv,ver); /* make a duplicate */
+ upg_version(rv, TRUE);
+ } else {
+ rv = sv_2mortal(new_version(ver));
+ }
+ if ( items == 2 && strcmp(classname,"version") ) { /* inherited new() */
+ sv_bless(rv, gv_stashpv(classname, GV_ADD));
+ }
+ PUSHs(rv);
+ }
+ PUTBACK;
+ return;
+}
- sv_utf8_encode(sv);
+XS(XS_version_is_qv)
+{
+ dVAR;
+ dXSARGS;
+ if (items != 1)
+ croak_xs_usage(cv, "lobj");
+ SP -= items;
+ if (sv_derived_from(ST(0), "version")) {
+ SV * const lobj = ST(0);
+ if ( hv_exists(MUTABLE_HV(SvRV(lobj)), "qv", 2 ) )
+ XSRETURN_YES;
+ else
+ XSRETURN_NO;
+ PUTBACK;
+ return;
}
+ else
+ Perl_croak(aTHX_ "lobj is not of type version");
+}
+
+XS(XS_utf8_is_utf8)
+{
+ dVAR;
+ dXSARGS;
+ if (items != 1)
+ croak_xs_usage(cv, "sv");
+ else {
+ const SV * const sv = ST(0);
+ if (SvUTF8(sv))
+ XSRETURN_YES;
+ else
+ XSRETURN_NO;
+ }
+ XSRETURN_EMPTY;
+}
+
+XS(XS_utf8_valid)
+{
+ dVAR;
+ dXSARGS;
+ if (items != 1)
+ croak_xs_usage(cv, "sv");
+ else {
+ SV * const sv = ST(0);
+ STRLEN len;
+ const char * const s = SvPV_const(sv,len);
+ if (!SvUTF8(sv) || is_utf8_string((const U8*)s,len))
+ XSRETURN_YES;
+ else
+ XSRETURN_NO;
+ }
+ XSRETURN_EMPTY;
+}
+
+XS(XS_utf8_encode)
+{
+ dVAR;
+ dXSARGS;
+ if (items != 1)
+ croak_xs_usage(cv, "sv");
+ sv_utf8_encode(ST(0));
XSRETURN_EMPTY;
}
XS(XS_utf8_decode)
{
+ dVAR;
dXSARGS;
if (items != 1)
- Perl_croak(aTHX_ "Usage: utf8::decode(sv)");
- {
- SV * sv = ST(0);
- bool RETVAL;
-
- RETVAL = sv_utf8_decode(sv);
+ croak_xs_usage(cv, "sv");
+ else {
+ SV * const sv = ST(0);
+ const bool RETVAL = sv_utf8_decode(sv);
ST(0) = boolSV(RETVAL);
sv_2mortal(ST(0));
}
XS(XS_utf8_upgrade)
{
+ dVAR;
dXSARGS;
if (items != 1)
- Perl_croak(aTHX_ "Usage: utf8::upgrade(sv)");
- {
- SV * sv = ST(0);
+ croak_xs_usage(cv, "sv");
+ else {
+ SV * const sv = ST(0);
STRLEN RETVAL;
dXSTARG;
XS(XS_utf8_downgrade)
{
+ dVAR;
dXSARGS;
if (items < 1 || items > 2)
- Perl_croak(aTHX_ "Usage: utf8::downgrade(sv, failok=0)");
- {
- SV * sv = ST(0);
- bool failok;
- bool RETVAL;
-
- if (items < 2)
- failok = 0;
- else {
- failok = (int)SvIV(ST(1));
- }
+ croak_xs_usage(cv, "sv, failok=0");
+ else {
+ SV * const sv = ST(0);
+ const bool failok = (items < 2) ? 0 : (int)SvIV(ST(1));
+ const bool RETVAL = sv_utf8_downgrade(sv, failok);
- RETVAL = sv_utf8_downgrade(sv, failok);
ST(0) = boolSV(RETVAL);
sv_2mortal(ST(0));
}
XS(XS_utf8_native_to_unicode)
{
+ dVAR;
dXSARGS;
- UV uv = SvUV(ST(0));
+ const UV uv = SvUV(ST(0));
if (items > 1)
- Perl_croak(aTHX_ "Usage: utf8::native_to_unicode(sv)");
+ croak_xs_usage(cv, "sv");
ST(0) = sv_2mortal(newSViv(NATIVE_TO_UNI(uv)));
XSRETURN(1);
XS(XS_utf8_unicode_to_native)
{
+ dVAR;
dXSARGS;
- UV uv = SvUV(ST(0));
+ const UV uv = SvUV(ST(0));
if (items > 1)
- Perl_croak(aTHX_ "Usage: utf8::unicode_to_native(sv)");
+ croak_xs_usage(cv, "sv");
ST(0) = sv_2mortal(newSViv(UNI_TO_NATIVE(uv)));
XSRETURN(1);
}
+XS(XS_Internals_SvREADONLY) /* This is dangerous stuff. */
+{
+ dVAR;
+ dXSARGS;
+ SV * const sv = SvRV(ST(0));
+ PERL_UNUSED_ARG(cv);
+
+ if (items == 1) {
+ if (SvREADONLY(sv))
+ XSRETURN_YES;
+ else
+ XSRETURN_NO;
+ }
+ else if (items == 2) {
+ if (SvTRUE(ST(1))) {
+ SvREADONLY_on(sv);
+ XSRETURN_YES;
+ }
+ else {
+ /* I hope you really know what you are doing. */
+ SvREADONLY_off(sv);
+ XSRETURN_NO;
+ }
+ }
+ XSRETURN_UNDEF; /* Can't happen. */
+}
+
+XS(XS_Internals_SvREFCNT) /* This is dangerous stuff. */
+{
+ dVAR;
+ dXSARGS;
+ SV * const sv = SvRV(ST(0));
+ PERL_UNUSED_ARG(cv);
+
+ if (items == 1)
+ XSRETURN_IV(SvREFCNT(sv) - 1); /* Minus the ref created for us. */
+ else if (items == 2) {
+ /* I hope you really know what you are doing. */
+ SvREFCNT(sv) = SvIV(ST(1));
+ XSRETURN_IV(SvREFCNT(sv));
+ }
+ XSRETURN_UNDEF; /* Can't happen. */
+}
+
+XS(XS_Internals_hv_clear_placehold)
+{
+ dVAR;
+ dXSARGS;
+
+ if (items != 1)
+ croak_xs_usage(cv, "hv");
+ else {
+ HV * const hv = MUTABLE_HV(SvRV(ST(0)));
+ hv_clear_placeholders(hv);
+ XSRETURN(0);
+ }
+}
+
+XS(XS_PerlIO_get_layers)
+{
+ dVAR;
+ dXSARGS;
+ if (items < 1 || items % 2 == 0)
+ croak_xs_usage(cv, "filehandle[,args]");
+#ifdef USE_PERLIO
+ {
+ SV * sv;
+ GV * gv;
+ IO * io;
+ bool input = TRUE;
+ bool details = FALSE;
+
+ if (items > 1) {
+ SV * const *svp;
+ for (svp = MARK + 2; svp <= SP; svp += 2) {
+ SV * const * const varp = svp;
+ SV * const * const valp = svp + 1;
+ STRLEN klen;
+ const char * const key = SvPV_const(*varp, klen);
+
+ switch (*key) {
+ case 'i':
+ if (klen == 5 && memEQ(key, "input", 5)) {
+ input = SvTRUE(*valp);
+ break;
+ }
+ goto fail;
+ case 'o':
+ if (klen == 6 && memEQ(key, "output", 6)) {
+ input = !SvTRUE(*valp);
+ break;
+ }
+ goto fail;
+ case 'd':
+ if (klen == 7 && memEQ(key, "details", 7)) {
+ details = SvTRUE(*valp);
+ break;
+ }
+ goto fail;
+ default:
+ fail:
+ Perl_croak(aTHX_
+ "get_layers: unknown argument '%s'",
+ key);
+ }
+ }
+
+ SP -= (items - 1);
+ }
+
+ sv = POPs;
+ gv = MUTABLE_GV(sv);
+
+ if (!isGV(sv)) {
+ if (SvROK(sv) && isGV(SvRV(sv)))
+ gv = MUTABLE_GV(SvRV(sv));
+ else if (SvPOKp(sv))
+ gv = gv_fetchsv(sv, 0, SVt_PVIO);
+ }
+
+ if (gv && (io = GvIO(gv))) {
+ AV* const av = PerlIO_get_layers(aTHX_ input ?
+ IoIFP(io) : IoOFP(io));
+ I32 i;
+ const I32 last = av_len(av);
+ I32 nitem = 0;
+
+ for (i = last; i >= 0; i -= 3) {
+ SV * const * const namsvp = av_fetch(av, i - 2, FALSE);
+ SV * const * const argsvp = av_fetch(av, i - 1, FALSE);
+ SV * const * const flgsvp = av_fetch(av, i, FALSE);
+
+ const bool namok = namsvp && *namsvp && SvPOK(*namsvp);
+ const bool argok = argsvp && *argsvp && SvPOK(*argsvp);
+ const bool flgok = flgsvp && *flgsvp && SvIOK(*flgsvp);
+
+ if (details) {
+ /* Indents of 5? Yuck. */
+ /* We know that PerlIO_get_layers creates a new SV for
+ the name and flags, so we can just take a reference
+ and "steal" it when we free the AV below. */
+ XPUSHs(namok
+ ? sv_2mortal(SvREFCNT_inc_simple_NN(*namsvp))
+ : &PL_sv_undef);
+ XPUSHs(argok
+ ? newSVpvn_flags(SvPVX_const(*argsvp),
+ SvCUR(*argsvp),
+ (SvUTF8(*argsvp) ? SVf_UTF8 : 0)
+ | SVs_TEMP)
+ : &PL_sv_undef);
+ XPUSHs(flgok
+ ? sv_2mortal(SvREFCNT_inc_simple_NN(*flgsvp))
+ : &PL_sv_undef);
+ nitem += 3;
+ }
+ else {
+ if (namok && argok)
+ XPUSHs(sv_2mortal(Perl_newSVpvf(aTHX_ "%"SVf"(%"SVf")",
+ SVfARG(*namsvp),
+ SVfARG(*argsvp))));
+ else if (namok)
+ XPUSHs(sv_2mortal(SvREFCNT_inc_simple_NN(*namsvp)));
+ else
+ XPUSHs(&PL_sv_undef);
+ nitem++;
+ if (flgok) {
+ const IV flags = SvIVX(*flgsvp);
+
+ if (flags & PERLIO_F_UTF8) {
+ XPUSHs(newSVpvs_flags("utf8", SVs_TEMP));
+ nitem++;
+ }
+ }
+ }
+ }
+
+ SvREFCNT_dec(av);
+
+ XSRETURN(nitem);
+ }
+ }
+#endif
+
+ XSRETURN(0);
+}
+
+XS(XS_Internals_hash_seed)
+{
+ dVAR;
+ /* Using dXSARGS would also have dITEM and dSP,
+ * which define 2 unused local variables. */
+ dAXMARK;
+ PERL_UNUSED_ARG(cv);
+ PERL_UNUSED_VAR(mark);
+ XSRETURN_UV(PERL_HASH_SEED);
+}
+
+XS(XS_Internals_rehash_seed)
+{
+ dVAR;
+ /* Using dXSARGS would also have dITEM and dSP,
+ * which define 2 unused local variables. */
+ dAXMARK;
+ PERL_UNUSED_ARG(cv);
+ PERL_UNUSED_VAR(mark);
+ XSRETURN_UV(PL_rehash_seed);
+}
+
+XS(XS_Internals_HvREHASH) /* Subject to change */
+{
+ dVAR;
+ dXSARGS;
+ PERL_UNUSED_ARG(cv);
+ if (SvROK(ST(0))) {
+ const HV * const hv = (const HV *) SvRV(ST(0));
+ if (items == 1 && SvTYPE(hv) == SVt_PVHV) {
+ if (HvREHASH(hv))
+ XSRETURN_YES;
+ else
+ XSRETURN_NO;
+ }
+ }
+ Perl_croak(aTHX_ "Internals::HvREHASH $hashref");
+}
+
+XS(XS_re_is_regexp)
+{
+ dVAR;
+ dXSARGS;
+ PERL_UNUSED_VAR(cv);
+
+ if (items != 1)
+ croak_xs_usage(cv, "sv");
+
+ SP -= items;
+
+ if (SvRXOK(ST(0))) {
+ XSRETURN_YES;
+ } else {
+ XSRETURN_NO;
+ }
+}
+
+XS(XS_re_regnames_count)
+{
+ REGEXP *rx = PL_curpm ? PM_GETRE(PL_curpm) : NULL;
+ SV * ret;
+ dVAR;
+ dXSARGS;
+
+ if (items != 0)
+ croak_xs_usage(cv, "");
+
+ SP -= items;
+
+ if (!rx)
+ XSRETURN_UNDEF;
+
+ ret = CALLREG_NAMED_BUFF_COUNT(rx);
+
+ SPAGAIN;
+
+ if (ret) {
+ mXPUSHs(ret);
+ PUTBACK;
+ return;
+ } else {
+ XSRETURN_UNDEF;
+ }
+}
+
+XS(XS_re_regname)
+{
+ dVAR;
+ dXSARGS;
+ REGEXP * rx;
+ U32 flags;
+ SV * ret;
+
+ if (items < 1 || items > 2)
+ croak_xs_usage(cv, "name[, all ]");
+
+ SP -= items;
+
+ rx = PL_curpm ? PM_GETRE(PL_curpm) : NULL;
+
+ if (!rx)
+ XSRETURN_UNDEF;
+
+ if (items == 2 && SvTRUE(ST(1))) {
+ flags = RXapif_ALL;
+ } else {
+ flags = RXapif_ONE;
+ }
+ ret = CALLREG_NAMED_BUFF_FETCH(rx, ST(0), (flags | RXapif_REGNAME));
+
+ if (ret) {
+ mXPUSHs(ret);
+ XSRETURN(1);
+ }
+ XSRETURN_UNDEF;
+}
+
+
+XS(XS_re_regnames)
+{
+ dVAR;
+ dXSARGS;
+ REGEXP * rx;
+ U32 flags;
+ SV *ret;
+ AV *av;
+ I32 length;
+ I32 i;
+ SV **entry;
+
+ if (items > 1)
+ croak_xs_usage(cv, "[all]");
+
+ rx = PL_curpm ? PM_GETRE(PL_curpm) : NULL;
+
+ if (!rx)
+ XSRETURN_UNDEF;
+
+ if (items == 1 && SvTRUE(ST(0))) {
+ flags = RXapif_ALL;
+ } else {
+ flags = RXapif_ONE;
+ }
+
+ SP -= items;
+
+ ret = CALLREG_NAMED_BUFF_ALL(rx, (flags | RXapif_REGNAMES));
+
+ SPAGAIN;
+
+ SP -= items;
+
+ if (!ret)
+ XSRETURN_UNDEF;
+
+ av = MUTABLE_AV(SvRV(ret));
+ length = av_len(av);
+
+ for (i = 0; i <= length; i++) {
+ entry = av_fetch(av, i, FALSE);
+
+ if (!entry)
+ Perl_croak(aTHX_ "NULL array element in re::regnames()");
+
+ mXPUSHs(SvREFCNT_inc_simple_NN(*entry));
+ }
+
+ SvREFCNT_dec(ret);
+
+ PUTBACK;
+ return;
+}
+
+XS(XS_re_regexp_pattern)
+{
+ dVAR;
+ dXSARGS;
+ REGEXP *re;
+
+ if (items != 1)
+ croak_xs_usage(cv, "sv");
+
+ SP -= items;
+
+ /*
+ Checks if a reference is a regex or not. If the parameter is
+ not a ref, or is not the result of a qr// then returns false
+ in scalar context and an empty list in list context.
+ Otherwise in list context it returns the pattern and the
+ modifiers, in scalar context it returns the pattern just as it
+ would if the qr// was stringified normally, regardless as
+ to the class of the variable and any strigification overloads
+ on the object.
+ */
+
+ if ((re = SvRX(ST(0)))) /* assign deliberate */
+ {
+ /* Housten, we have a regex! */
+ SV *pattern;
+ STRLEN left = 0;
+ char reflags[6];
+
+ if ( GIMME_V == G_ARRAY ) {
+ /*
+ we are in list context so stringify
+ the modifiers that apply. We ignore "negative
+ modifiers" in this scenario.
+ */
+
+ const char *fptr = INT_PAT_MODS;
+ char ch;
+ U16 match_flags = (U16)((RX_EXTFLAGS(re) & PMf_COMPILETIME)
+ >> RXf_PMf_STD_PMMOD_SHIFT);
+
+ while((ch = *fptr++)) {
+ if(match_flags & 1) {
+ reflags[left++] = ch;
+ }
+ match_flags >>= 1;
+ }
+
+ pattern = newSVpvn_flags(RX_PRECOMP(re),RX_PRELEN(re),
+ (RX_UTF8(re) ? SVf_UTF8 : 0) | SVs_TEMP);
+
+ /* return the pattern and the modifiers */
+ XPUSHs(pattern);
+ XPUSHs(newSVpvn_flags(reflags, left, SVs_TEMP));
+ XSRETURN(2);
+ } else {
+ /* Scalar, so use the string that Perl would return */
+ /* return the pattern in (?msix:..) format */
+#if PERL_VERSION >= 11
+ pattern = sv_2mortal(newSVsv(MUTABLE_SV(re)));
+#else
+ pattern = newSVpvn_flags(RX_WRAPPED(re), RX_WRAPLEN(re),
+ (RX_UTF8(re) ? SVf_UTF8 : 0) | SVs_TEMP);
+#endif
+ XPUSHs(pattern);
+ XSRETURN(1);
+ }
+ } else {
+ /* It ain't a regexp folks */
+ if ( GIMME_V == G_ARRAY ) {
+ /* return the empty list */
+ XSRETURN_UNDEF;
+ } else {
+ /* Because of the (?:..) wrapping involved in a
+ stringified pattern it is impossible to get a
+ result for a real regexp that would evaluate to
+ false. Therefore we can return PL_sv_no to signify
+ that the object is not a regex, this means that one
+ can say
+
+ if (regex($might_be_a_regex) eq '(?:foo)') { }
+
+ and not worry about undefined values.
+ */
+ XSRETURN_NO;
+ }
+ }
+ /* NOT-REACHED */
+}
+
+XS(XS_Tie_Hash_NamedCapture_FETCH)
+{
+ dVAR;
+ dXSARGS;
+ REGEXP * rx;
+ U32 flags;
+ SV * ret;
+
+ if (items != 2)
+ croak_xs_usage(cv, "$key, $flags");
+
+ rx = PL_curpm ? PM_GETRE(PL_curpm) : NULL;
+
+ if (!rx)
+ XSRETURN_UNDEF;
+
+ SP -= items;
+
+ flags = (U32)INT2PTR(IV,SvIV(SvRV(MUTABLE_SV(ST(0)))));
+ ret = CALLREG_NAMED_BUFF_FETCH(rx, ST(1), flags);
+
+ SPAGAIN;
+
+ if (ret) {
+ mXPUSHs(ret);
+ PUTBACK;
+ return;
+ }
+ XSRETURN_UNDEF;
+}
+
+XS(XS_Tie_Hash_NamedCapture_STORE)
+{
+ dVAR;
+ dXSARGS;
+ REGEXP * rx;
+ U32 flags;
+
+ if (items != 3)
+ croak_xs_usage(cv, "$key, $value, $flags");
+
+ rx = PL_curpm ? PM_GETRE(PL_curpm) : NULL;
+
+ if (!rx) {
+ if (!PL_localizing)
+ Perl_croak(aTHX_ "%s", PL_no_modify);
+ else
+ XSRETURN_UNDEF;
+ }
+
+ SP -= items;
+
+ flags = (U32)INT2PTR(IV,SvIV(SvRV(MUTABLE_SV(ST(0)))));
+ CALLREG_NAMED_BUFF_STORE(rx,ST(1), ST(2), flags);
+}
+
+XS(XS_Tie_Hash_NamedCapture_DELETE)
+{
+ dVAR;
+ dXSARGS;
+ REGEXP * rx = PL_curpm ? PM_GETRE(PL_curpm) : NULL;
+ U32 flags;
+
+ if (items != 2)
+ croak_xs_usage(cv, "$key, $flags");
+
+ if (!rx)
+ Perl_croak(aTHX_ "%s", PL_no_modify);
+
+ SP -= items;
+
+ flags = (U32)INT2PTR(IV,SvIV(SvRV(MUTABLE_SV(ST(0)))));
+ CALLREG_NAMED_BUFF_DELETE(rx, ST(1), flags);
+}
+
+XS(XS_Tie_Hash_NamedCapture_CLEAR)
+{
+ dVAR;
+ dXSARGS;
+ REGEXP * rx;
+ U32 flags;
+
+ if (items != 1)
+ croak_xs_usage(cv, "$flags");
+
+ rx = PL_curpm ? PM_GETRE(PL_curpm) : NULL;
+
+ if (!rx)
+ Perl_croak(aTHX_ "%s", PL_no_modify);
+
+ SP -= items;
+
+ flags = (U32)INT2PTR(IV,SvIV(SvRV(MUTABLE_SV(ST(0)))));
+ CALLREG_NAMED_BUFF_CLEAR(rx, flags);
+}
+
+XS(XS_Tie_Hash_NamedCapture_EXISTS)
+{
+ dVAR;
+ dXSARGS;
+ REGEXP * rx;
+ U32 flags;
+ SV * ret;
+
+ if (items != 2)
+ croak_xs_usage(cv, "$key, $flags");
+
+ rx = PL_curpm ? PM_GETRE(PL_curpm) : NULL;
+
+ if (!rx)
+ XSRETURN_UNDEF;
+
+ SP -= items;
+
+ flags = (U32)INT2PTR(IV,SvIV(SvRV(MUTABLE_SV(ST(0)))));
+ ret = CALLREG_NAMED_BUFF_EXISTS(rx, ST(1), flags);
+
+ SPAGAIN;
+
+ XPUSHs(ret);
+ PUTBACK;
+ return;
+}
+
+XS(XS_Tie_Hash_NamedCapture_FIRSTK)
+{
+ dVAR;
+ dXSARGS;
+ REGEXP * rx;
+ U32 flags;
+ SV * ret;
+ if (items != 1)
+ croak_xs_usage(cv, "");
+
+ rx = PL_curpm ? PM_GETRE(PL_curpm) : NULL;
+
+ if (!rx)
+ XSRETURN_UNDEF;
+
+ SP -= items;
+
+ flags = (U32)INT2PTR(IV,SvIV(SvRV(MUTABLE_SV(ST(0)))));
+ ret = CALLREG_NAMED_BUFF_FIRSTKEY(rx, flags);
+
+ SPAGAIN;
+
+ if (ret) {
+ mXPUSHs(ret);
+ PUTBACK;
+ } else {
+ XSRETURN_UNDEF;
+ }
+
+}
+
+XS(XS_Tie_Hash_NamedCapture_NEXTK)
+{
+ dVAR;
+ dXSARGS;
+ REGEXP * rx;
+ U32 flags;
+ SV * ret;
+
+ if (items != 2)
+ croak_xs_usage(cv, "$lastkey");
+
+ rx = PL_curpm ? PM_GETRE(PL_curpm) : NULL;
+
+ if (!rx)
+ XSRETURN_UNDEF;
+
+ SP -= items;
+
+ flags = (U32)INT2PTR(IV,SvIV(SvRV(MUTABLE_SV(ST(0)))));
+ ret = CALLREG_NAMED_BUFF_NEXTKEY(rx, ST(1), flags);
+
+ SPAGAIN;
+
+ if (ret) {
+ mXPUSHs(ret);
+ } else {
+ XSRETURN_UNDEF;
+ }
+ PUTBACK;
+}
+
+XS(XS_Tie_Hash_NamedCapture_SCALAR)
+{
+ dVAR;
+ dXSARGS;
+ REGEXP * rx;
+ U32 flags;
+ SV * ret;
+
+ if (items != 1)
+ croak_xs_usage(cv, "");
+
+ rx = PL_curpm ? PM_GETRE(PL_curpm) : NULL;
+
+ if (!rx)
+ XSRETURN_UNDEF;
+
+ SP -= items;
+
+ flags = (U32)INT2PTR(IV,SvIV(SvRV(MUTABLE_SV(ST(0)))));
+ ret = CALLREG_NAMED_BUFF_SCALAR(rx, flags);
+
+ SPAGAIN;
+
+ if (ret) {
+ mXPUSHs(ret);
+ PUTBACK;
+ return;
+ } else {
+ XSRETURN_UNDEF;
+ }
+}
+
+XS(XS_Tie_Hash_NamedCapture_flags)
+{
+ dVAR;
+ dXSARGS;
+
+ if (items != 0)
+ croak_xs_usage(cv, "");
+
+ mXPUSHu(RXapif_ONE);
+ mXPUSHu(RXapif_ALL);
+ PUTBACK;
+ return;
+}
+
+
+/*
+ * Local variables:
+ * c-indentation-style: bsd
+ * c-basic-offset: 4
+ * indent-tabs-mode: t
+ * End:
+ *
+ * ex: set ts=8 sts=4 sw=4 noet:
+ */
projects / p5sagit/p5-mst-13.2.git / blobdiff