/* universal.c
*
- * Copyright (c) 1997-2002, Larry Wall
+ * Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003,
+ * 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.
#define PERL_IN_UNIVERSAL_C
#include "perl.h"
+#ifdef USE_PERLIO
+#include "perliol.h" /* For the PERLIO_F_XXX */
+#endif
+
/*
* Contributed by Graham Barr <Graham.Barr@tiuk.ti.com>
* The main guts of traverse_isa was actually copied from gv_fetchmeth
if (!basestash) {
if (ckWARN(WARN_MISC))
Perl_warner(aTHX_ packWARN(WARN_SYNTAX),
- "Can't locate package %s for @%s::ISA",
- SvPVX(sv), HvNAME(stash));
+ "Can't locate package %"SVf" for @%s::ISA",
+ sv, HvNAME(stash));
continue;
}
if (&PL_sv_yes == isa_lookup(basestash, name, name_stash,
XS(XS_version_vcmp);
XS(XS_version_boolean);
XS(XS_version_noop);
+XS(XS_utf8_is_utf8);
XS(XS_utf8_valid);
XS(XS_utf8_encode);
XS(XS_utf8_decode);
XS(XS_Internals_SvREADONLY);
XS(XS_Internals_SvREFCNT);
XS(XS_Internals_hv_clear_placehold);
+XS(XS_PerlIO_get_layers);
+XS(XS_Regexp_DESTROY);
void
Perl_boot_core_UNIVERSAL(pTHX)
newXS("UNIVERSAL::can", XS_UNIVERSAL_can, file);
newXS("UNIVERSAL::VERSION", XS_UNIVERSAL_VERSION, file);
{
- /* create the package stash for version objects */
- HV *hv = get_hv("version::OVERLOAD",TRUE);
- SV *sv = *hv_fetch(hv,"register",8,1);
- sv_inc(sv);
- SvSETMAGIC(sv);
+ /* register the overloading (type 'A') magic */
+ PL_amagic_generation++;
/* Make it findable via fetchmethod */
- newXS("version::()", NULL, file);
+ newXS("version::()", XS_version_noop, file);
newXS("version::new", XS_version_new, file);
newXS("version::(\"\"", XS_version_stringify, file);
newXS("version::stringify", XS_version_stringify, file);
newXS("version::(nomethod", XS_version_noop, file);
newXS("version::noop", XS_version_noop, 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);
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, "*;@");
+ newXS("Regexp::DESTROY", XS_Regexp_DESTROY, file);
}
if (SvGMAGICAL(sv))
mg_get(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);
if (SvGMAGICAL(sv))
mg_get(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);
"%s defines neither package nor VERSION--version check failed", str);
}
}
- 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 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(sv, "version"))
+ sv = new_version(sv);
+
+ if ( !sv_derived_from(req, "version"))
+ req = 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));
+ if ( vcmp( SvRV(req), SvRV(sv) ) > 0 )
+ Perl_croak(aTHX_
+ "%s version %"SVf" required--this is only version %"SVf,
+ HvNAME(pkg), req, sv);
}
-finish:
ST(0) = sv;
XSRETURN(1);
XS(XS_version_new)
{
dXSARGS;
- if (items != 2)
+ if (items > 3)
Perl_croak(aTHX_ "Usage: version::new(class, version)");
SP -= items;
{
/* char * class = (char *)SvPV_nolen(ST(0)); */
- SV * version = ST(1);
-
-{
- PUSHs(new_version(version));
-}
+ SV *version = ST(1);
+ if (items == 3 )
+ {
+ char *vs = savepvn(SvPVX(ST(2)),SvCUR(ST(2)));
+ version = Perl_newSVpvf(aTHX_ "v%s",vs);
+ }
+ PUSHs(new_version(version));
PUTBACK;
return;
}
XS(XS_version_stringify)
{
- dXSARGS;
- if (items < 1)
- Perl_croak(aTHX_ "Usage: version::stringify(lobj, ...)");
- SP -= items;
- {
- SV * lobj;
-
- if (sv_derived_from(ST(0), "version")) {
- SV *tmp = SvRV(ST(0));
- lobj = tmp;
- }
- else
- croak("lobj is not of type version");
-
-{
- SV *vs = NEWSV(92,5);
- if ( lobj == SvRV(PL_patchlevel) )
- sv_catsv(vs,lobj);
- else
- vstringify(vs,lobj);
- PUSHs(vs);
-}
-
- PUTBACK;
- return;
- }
+ dXSARGS;
+ if (items < 1)
+ Perl_croak(aTHX_ "Usage: version::stringify(lobj, ...)");
+ SP -= items;
+ {
+ SV * lobj;
+
+ if (sv_derived_from(ST(0), "version")) {
+ SV *tmp = SvRV(ST(0));
+ lobj = tmp;
+ }
+ else
+ Perl_croak(aTHX_ "lobj is not of type version");
+
+ {
+ PUSHs(vstringify(lobj));
+ }
+
+ PUTBACK;
+ return;
+ }
}
XS(XS_version_numify)
{
- dXSARGS;
- if (items < 1)
- Perl_croak(aTHX_ "Usage: version::numify(lobj, ...)");
- SP -= items;
- {
- SV * lobj;
-
- if (sv_derived_from(ST(0), "version")) {
- SV *tmp = SvRV(ST(0));
- lobj = tmp;
- }
- else
- croak("lobj is not of type version");
-
-{
- SV *vs = NEWSV(92,5);
- vnumify(vs,lobj);
- PUSHs(vs);
-}
-
- PUTBACK;
- return;
- }
+ dXSARGS;
+ if (items < 1)
+ Perl_croak(aTHX_ "Usage: version::numify(lobj, ...)");
+ SP -= items;
+ {
+ SV * lobj;
+
+ if (sv_derived_from(ST(0), "version")) {
+ SV *tmp = SvRV(ST(0));
+ lobj = tmp;
+ }
+ else
+ Perl_croak(aTHX_ "lobj is not of type version");
+
+ {
+ PUSHs(vnumify(lobj));
+ }
+
+ PUTBACK;
+ return;
+ }
}
XS(XS_version_vcmp)
{
- dXSARGS;
- if (items < 1)
- Perl_croak(aTHX_ "Usage: version::vcmp(lobj, ...)");
- SP -= items;
- {
- SV * lobj;
-
- if (sv_derived_from(ST(0), "version")) {
- SV *tmp = SvRV(ST(0));
- lobj = tmp;
- }
- else
- croak("lobj is not of type version");
-
-{
- SV *rs;
- SV *rvs;
- SV * robj = ST(1);
- IV swap = (IV)SvIV(ST(2));
-
- if ( ! sv_derived_from(robj, "version") )
- {
- robj = new_version(robj);
- }
- rvs = SvRV(robj);
-
- if ( swap )
- {
- rs = newSViv(sv_cmp(rvs,lobj));
- }
- else
- {
- rs = newSViv(sv_cmp(lobj,rvs));
- }
-
- PUSHs(rs);
-}
-
- PUTBACK;
- return;
- }
+ dXSARGS;
+ if (items < 1)
+ Perl_croak(aTHX_ "Usage: version::vcmp(lobj, ...)");
+ SP -= items;
+ {
+ SV * lobj;
+
+ if (sv_derived_from(ST(0), "version")) {
+ SV *tmp = SvRV(ST(0));
+ lobj = tmp;
+ }
+ else
+ Perl_croak(aTHX_ "lobj is not of type version");
+
+ {
+ SV *rs;
+ SV *rvs;
+ SV * robj = ST(1);
+ 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));
+ }
+
+ PUSHs(rs);
+ }
+
+ PUTBACK;
+ return;
+ }
}
XS(XS_version_boolean)
{
- dXSARGS;
- if (items < 1)
- Perl_croak(aTHX_ "Usage: version::boolean(lobj, ...)");
- SP -= items;
- {
- SV * lobj;
-
- if (sv_derived_from(ST(0), "version")) {
- SV *tmp = SvRV(ST(0));
- lobj = tmp;
- }
- else
- croak("lobj is not of type version");
-
-{
- SV *rs;
- rs = newSViv(sv_cmp(lobj,Nullsv));
- PUSHs(rs);
-}
-
- PUTBACK;
- return;
- }
+ dXSARGS;
+ if (items < 1)
+ Perl_croak(aTHX_ "Usage: version::boolean(lobj, ...)");
+ SP -= items;
+ {
+ SV * lobj;
+
+ if (sv_derived_from(ST(0), "version")) {
+ SV *tmp = SvRV(ST(0));
+ lobj = tmp;
+ }
+ else
+ Perl_croak(aTHX_ "lobj is not of type version");
+
+ {
+ SV *rs;
+ rs = newSViv( vcmp(lobj,new_version(newSVpvn("0",1))) );
+ PUSHs(rs);
+ }
+
+ PUTBACK;
+ return;
+ }
}
XS(XS_version_noop)
{
- dXSARGS;
- if (items < 1)
- Perl_croak(aTHX_ "Usage: version::noop(lobj, ...)");
- {
- SV * lobj;
-
- if (sv_derived_from(ST(0), "version")) {
- SV *tmp = SvRV(ST(0));
- lobj = tmp;
- }
- else
- croak("lobj is not of type version");
-
-{
- croak("operation not supported with version object");
+ dXSARGS;
+ if (items < 1)
+ Perl_croak(aTHX_ "Usage: version::noop(lobj, ...)");
+ {
+ SV * lobj;
+
+ if (sv_derived_from(ST(0), "version")) {
+ SV *tmp = SvRV(ST(0));
+ lobj = tmp;
+ }
+ else
+ Perl_croak(aTHX_ "lobj is not of type version");
+
+ {
+ Perl_croak(aTHX_ "operation not supported with version object");
+ }
+
+ }
+ XSRETURN_EMPTY;
}
- }
- XSRETURN_EMPTY;
+XS(XS_utf8_is_utf8)
+{
+ dXSARGS;
+ if (items != 1)
+ Perl_croak(aTHX_ "Usage: utf8::is_utf8(sv)");
+ {
+ SV * sv = ST(0);
+ {
+ if (SvUTF8(sv))
+ XSRETURN_YES;
+ else
+ XSRETURN_NO;
+ }
+ }
+ XSRETURN_EMPTY;
}
XS(XS_utf8_valid)
{
- dXSARGS;
- if (items != 1)
- Perl_croak(aTHX_ "Usage: utf8::valid(sv)");
- {
- 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;
- }
- }
- XSRETURN_EMPTY;
+ dXSARGS;
+ if (items != 1)
+ Perl_croak(aTHX_ "Usage: utf8::valid(sv)");
+ {
+ 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;
+ }
+ }
+ XSRETURN_EMPTY;
}
XS(XS_utf8_encode)
XSRETURN(0);
}
+
+XS(XS_Regexp_DESTROY)
+{
+
+}
+
+XS(XS_PerlIO_get_layers)
+{
+ dXSARGS;
+ if (items < 1 || items % 2 == 0)
+ Perl_croak(aTHX_ "Usage: PerlIO_get_layers(filehandle[,args])");
+#ifdef USE_PERLIO
+ {
+ SV * sv;
+ GV * gv;
+ IO * io;
+ bool input = TRUE;
+ bool details = FALSE;
+
+ if (items > 1) {
+ SV **svp;
+
+ for (svp = MARK + 2; svp <= SP; svp += 2) {
+ SV **varp = svp;
+ SV **valp = svp + 1;
+ STRLEN klen;
+ char *key = SvPV(*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 = (GV*)sv;
+
+ if (!isGV(sv)) {
+ if (SvROK(sv) && isGV(SvRV(sv)))
+ gv = (GV*)SvRV(sv);
+ else
+ gv = gv_fetchpv(SvPVX(sv), FALSE, SVt_PVIO);
+ }
+
+ if (gv && (io = GvIO(gv))) {
+ dTARGET;
+ AV* av = PerlIO_get_layers(aTHX_ input ?
+ IoIFP(io) : IoOFP(io));
+ I32 i;
+ I32 last = av_len(av);
+ I32 nitem = 0;
+
+ for (i = last; i >= 0; i -= 3) {
+ SV **namsvp;
+ SV **argsvp;
+ SV **flgsvp;
+ bool namok, argok, flgok;
+
+ namsvp = av_fetch(av, i - 2, FALSE);
+ argsvp = av_fetch(av, i - 1, FALSE);
+ flgsvp = av_fetch(av, i, FALSE);
+
+ namok = namsvp && *namsvp && SvPOK(*namsvp);
+ argok = argsvp && *argsvp && SvPOK(*argsvp);
+ flgok = flgsvp && *flgsvp && SvIOK(*flgsvp);
+
+ if (details) {
+ XPUSHs(namok ?
+ newSVpv(SvPVX(*namsvp), 0) : &PL_sv_undef);
+ XPUSHs(argok ?
+ newSVpv(SvPVX(*argsvp), 0) : &PL_sv_undef);
+ if (flgok)
+ XPUSHi(SvIVX(*flgsvp));
+ else
+ XPUSHs(&PL_sv_undef);
+ nitem += 3;
+ }
+ else {
+ if (namok && argok)
+ XPUSHs(Perl_newSVpvf(aTHX_ "%"SVf"(%"SVf")",
+ *namsvp, *argsvp));
+ else if (namok)
+ XPUSHs(Perl_newSVpvf(aTHX_ "%"SVf, *namsvp));
+ else
+ XPUSHs(&PL_sv_undef);
+ nitem++;
+ if (flgok) {
+ IV flags = SvIVX(*flgsvp);
+
+ if (flags & PERLIO_F_UTF8) {
+ XPUSHs(newSVpvn("utf8", 4));
+ nitem++;
+ }
+ }
+ }
+ }
+
+ SvREFCNT_dec(av);
+
+ XSRETURN(nitem);
+ }
+ }
+#endif
+
+ XSRETURN(0);
+}
+
projects / p5sagit/p5-mst-13.2.git / blobdiff