3 * Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004,
4 * 2005, 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 *name, HV* name_stash,
45 /* A stash/class can go by many names (ie. User == main::User), so
46 we compare the stash itself just in case */
47 if (name_stash && (stash == name_stash))
50 hvname = HvNAME_get(stash);
52 if (strEQ(hvname, name))
55 if (strEQ(name, "UNIVERSAL"))
59 Perl_croak(aTHX_ "Recursive inheritance detected in package '%s'",
62 gvp = (GV**)hv_fetch(stash, "::ISA::CACHE::", 14, FALSE);
64 if (gvp && (gv = *gvp) != (GV*)&PL_sv_undef && (subgen = GvSV(gv))
67 if (SvIV(subgen) == (IV)PL_sub_generation) {
69 SV** const svp = (SV**)hv_fetch(hv, name, len, FALSE);
70 if (svp && (sv = *svp) != (SV*)&PL_sv_undef) {
71 DEBUG_o( Perl_deb(aTHX_ "Using cached ISA %s for package %s\n",
77 DEBUG_o( Perl_deb(aTHX_ "ISA Cache in package %s is stale\n",
80 sv_setiv(subgen, PL_sub_generation);
84 gvp = (GV**)hv_fetch(stash,"ISA",3,FALSE);
86 if (gvp && (gv = *gvp) != (GV*)&PL_sv_undef && (av = GvAV(gv))) {
88 gvp = (GV**)hv_fetch(stash, "::ISA::CACHE::", 14, TRUE);
92 if (SvTYPE(gv) != SVt_PVGV)
93 gv_init(gv, stash, "::ISA::CACHE::", 14, TRUE);
98 subgen = newSViv(PL_sub_generation);
103 SV** svp = AvARRAY(av);
104 /* NOTE: No support for tied ISA */
105 I32 items = AvFILLp(av) + 1;
107 SV* const sv = *svp++;
108 HV* const basestash = gv_stashsv(sv, FALSE);
110 if (ckWARN(WARN_MISC))
111 Perl_warner(aTHX_ packWARN(WARN_SYNTAX),
112 "Can't locate package %"SVf" for @%s::ISA",
116 if (&PL_sv_yes == isa_lookup(basestash, name, name_stash,
118 (void)hv_store(hv,name,len,&PL_sv_yes,0);
122 (void)hv_store(hv,name,len,&PL_sv_no,0);
129 =head1 SV Manipulation Functions
131 =for apidoc sv_derived_from
133 Returns a boolean indicating whether the SV is derived from the specified
134 class. This is the function that implements C<UNIVERSAL::isa>. It works
135 for class names as well as for objects.
141 Perl_sv_derived_from(pTHX_ SV *sv, const char *name)
143 const char *type = Nullch;
151 type = sv_reftype(sv,0);
156 stash = gv_stashsv(sv, FALSE);
159 name_stash = gv_stashpv(name, FALSE);
161 return (type && strEQ(type,name)) ||
162 (stash && isa_lookup(stash, name, name_stash, strlen(name), 0)
170 PERL_XS_EXPORT_C void XS_UNIVERSAL_isa(pTHX_ CV *cv);
171 PERL_XS_EXPORT_C void XS_UNIVERSAL_can(pTHX_ CV *cv);
172 PERL_XS_EXPORT_C void XS_UNIVERSAL_VERSION(pTHX_ CV *cv);
174 XS(XS_version_stringify);
175 XS(XS_version_numify);
176 XS(XS_version_normal);
178 XS(XS_version_boolean);
179 #ifdef HASATTRIBUTE_NORETURN
180 XS(XS_version_noop) __attribute__noreturn__;
184 XS(XS_version_is_alpha);
191 XS(XS_utf8_downgrade);
192 XS(XS_utf8_unicode_to_native);
193 XS(XS_utf8_native_to_unicode);
194 XS(XS_Internals_SvREADONLY);
195 XS(XS_Internals_SvREFCNT);
196 XS(XS_Internals_hv_clear_placehold);
197 XS(XS_PerlIO_get_layers);
198 XS(XS_Regexp_DESTROY);
199 XS(XS_Internals_hash_seed);
200 XS(XS_Internals_rehash_seed);
201 XS(XS_Internals_HvREHASH);
202 XS(XS_utf8_SWASHGET_heavy);
205 Perl_boot_core_UNIVERSAL(pTHX)
207 const char file[] = __FILE__;
209 newXS("UNIVERSAL::isa", XS_UNIVERSAL_isa, file);
210 newXS("UNIVERSAL::can", XS_UNIVERSAL_can, file);
211 newXS("UNIVERSAL::VERSION", XS_UNIVERSAL_VERSION, file);
213 /* register the overloading (type 'A') magic */
214 PL_amagic_generation++;
215 /* Make it findable via fetchmethod */
216 newXS("version::()", XS_version_noop, file);
217 newXS("version::new", XS_version_new, file);
218 newXS("version::(\"\"", XS_version_stringify, file);
219 newXS("version::stringify", XS_version_stringify, file);
220 newXS("version::(0+", XS_version_numify, file);
221 newXS("version::numify", XS_version_numify, file);
222 newXS("version::normal", XS_version_normal, file);
223 newXS("version::(cmp", XS_version_vcmp, file);
224 newXS("version::(<=>", XS_version_vcmp, file);
225 newXS("version::vcmp", XS_version_vcmp, file);
226 newXS("version::(bool", XS_version_boolean, file);
227 newXS("version::boolean", XS_version_boolean, file);
228 newXS("version::(nomethod", XS_version_noop, file);
229 newXS("version::noop", XS_version_noop, file);
230 newXS("version::is_alpha", XS_version_is_alpha, file);
231 newXS("version::qv", XS_version_qv, file);
233 newXS("utf8::is_utf8", XS_utf8_is_utf8, file);
234 newXS("utf8::valid", XS_utf8_valid, file);
235 newXS("utf8::encode", XS_utf8_encode, file);
236 newXS("utf8::decode", XS_utf8_decode, file);
237 newXS("utf8::upgrade", XS_utf8_upgrade, file);
238 newXS("utf8::downgrade", XS_utf8_downgrade, file);
239 newXS("utf8::native_to_unicode", XS_utf8_native_to_unicode, file);
240 newXS("utf8::unicode_to_native", XS_utf8_unicode_to_native, file);
241 newXSproto("Internals::SvREADONLY",XS_Internals_SvREADONLY, file, "\\[$%@];$");
242 newXSproto("Internals::SvREFCNT",XS_Internals_SvREFCNT, file, "\\[$%@];$");
243 newXSproto("Internals::hv_clear_placeholders",
244 XS_Internals_hv_clear_placehold, file, "\\%");
245 newXSproto("PerlIO::get_layers",
246 XS_PerlIO_get_layers, file, "*;@");
247 newXS("Regexp::DESTROY", XS_Regexp_DESTROY, file);
248 newXSproto("Internals::hash_seed",XS_Internals_hash_seed, file, "");
249 newXSproto("Internals::rehash_seed",XS_Internals_rehash_seed, file, "");
250 newXSproto("Internals::HvREHASH", XS_Internals_HvREHASH, file, "\\%");
251 newXS("utf8::SWASHGET_heavy", XS_utf8_SWASHGET_heavy, file);
260 Perl_croak(aTHX_ "Usage: UNIVERSAL::isa(reference, kind)");
262 SV * const sv = ST(0);
267 if (!SvOK(sv) || !(SvROK(sv) || (SvPOK(sv) && SvCUR(sv))
268 || (SvGMAGICAL(sv) && SvPOKp(sv) && SvCUR(sv))))
271 name = SvPV_nolen_const(ST(1));
273 ST(0) = boolSV(sv_derived_from(sv, name));
287 Perl_croak(aTHX_ "Usage: UNIVERSAL::can(object-ref, method)");
293 if (!SvOK(sv) || !(SvROK(sv) || (SvPOK(sv) && SvCUR(sv))
294 || (SvGMAGICAL(sv) && SvPOKp(sv) && SvCUR(sv))))
297 name = SvPV_nolen_const(ST(1));
306 pkg = gv_stashsv(sv, FALSE);
310 GV * const gv = gv_fetchmethod_autoload(pkg, name, FALSE);
312 rv = sv_2mortal(newRV((SV*)GvCV(gv)));
319 XS(XS_UNIVERSAL_VERSION)
329 sv = (SV*)SvRV(ST(0));
331 Perl_croak(aTHX_ "Cannot find version of an unblessed reference");
335 pkg = gv_stashsv(ST(0), FALSE);
338 gvp = pkg ? (GV**)hv_fetch(pkg,"VERSION",7,FALSE) : Null(GV**);
340 if (gvp && isGV(gv = *gvp) && (sv = GvSV(gv)) && SvOK(sv)) {
341 SV * const nsv = sv_newmortal();
344 if ( !sv_derived_from(sv, "version"))
349 sv = (SV*)&PL_sv_undef;
358 const char * const name = HvNAME_get(pkg);
360 "%s does not define $%s::VERSION--version check failed",
364 "%s defines neither package nor VERSION--version check failed",
365 SvPVx_nolen_const(ST(0)) );
369 if ( !sv_derived_from(req, "version")) {
370 /* req may very well be R/O, so create a new object */
371 SV * const nsv = sv_newmortal();
377 if ( vcmp( req, sv ) > 0 )
378 Perl_croak(aTHX_ "%s version %"SVf" (%"SVf") required--"
379 "this is only version %"SVf" (%"SVf")", HvNAME_get(pkg),
380 vnumify(req),vnormal(req),vnumify(sv),vnormal(sv));
383 if ( SvOK(sv) && sv_derived_from(sv, "version") ) {
396 Perl_croak(aTHX_ "Usage: version::new(class, version)");
401 const char * const classname =
402 sv_isobject(ST(0)) /* get the class if called as an object method */
403 ? HvNAME(SvSTASH(SvRV(ST(0))))
404 : (char *)SvPV_nolen(ST(0));
407 /* no parameter provided */
408 if ( sv_isobject(ST(0)) ) {
409 /* copy existing object */
413 /* create empty object */
418 else if ( items == 3 ) {
420 Perl_sv_setpvf(aTHX_ vs,"v%s",SvPV_nolen_const(ST(2)));
423 rv = new_version(vs);
424 if ( strcmp(classname,"version") != 0 ) /* inherited new() */
425 sv_bless(rv, gv_stashpv(classname,TRUE));
427 PUSHs(sv_2mortal(rv));
433 XS(XS_version_stringify)
437 Perl_croak(aTHX_ "Usage: version::stringify(lobj, ...)");
442 if (sv_derived_from(ST(0), "version")) {
446 Perl_croak(aTHX_ "lobj is not of type version");
448 PUSHs(sv_2mortal(vstringify(lobj)));
455 XS(XS_version_numify)
459 Perl_croak(aTHX_ "Usage: version::numify(lobj, ...)");
464 if (sv_derived_from(ST(0), "version")) {
468 Perl_croak(aTHX_ "lobj is not of type version");
470 PUSHs(sv_2mortal(vnumify(lobj)));
477 XS(XS_version_normal)
481 Perl_croak(aTHX_ "Usage: version::normal(lobj, ...)");
486 if (sv_derived_from(ST(0), "version")) {
490 Perl_croak(aTHX_ "lobj is not of type version");
492 PUSHs(sv_2mortal(vnormal(lobj)));
503 Perl_croak(aTHX_ "Usage: version::vcmp(lobj, ...)");
508 if (sv_derived_from(ST(0), "version")) {
512 Perl_croak(aTHX_ "lobj is not of type version");
518 const IV swap = (IV)SvIV(ST(2));
520 if ( ! sv_derived_from(robj, "version") )
522 robj = new_version(robj);
528 rs = newSViv(vcmp(rvs,lobj));
532 rs = newSViv(vcmp(lobj,rvs));
535 PUSHs(sv_2mortal(rs));
543 XS(XS_version_boolean)
547 Perl_croak(aTHX_ "Usage: version::boolean(lobj, ...)");
549 if (sv_derived_from(ST(0), "version")) {
550 SV * const lobj = SvRV(ST(0));
551 SV * const rs = newSViv( vcmp(lobj,new_version(newSVpvn("0",1))) );
552 PUSHs(sv_2mortal(rs));
557 Perl_croak(aTHX_ "lobj is not of type version");
564 Perl_croak(aTHX_ "Usage: version::noop(lobj, ...)");
565 if (sv_derived_from(ST(0), "version"))
566 Perl_croak(aTHX_ "operation not supported with version object");
568 Perl_croak(aTHX_ "lobj is not of type version");
569 #ifndef HASATTRIBUTE_NORETURN
574 XS(XS_version_is_alpha)
578 Perl_croak(aTHX_ "Usage: version::is_alpha(lobj)");
580 if (sv_derived_from(ST(0), "version")) {
581 SV * const lobj = ST(0);
582 if ( hv_exists((HV*)SvRV(lobj), "alpha", 5 ) )
590 Perl_croak(aTHX_ "lobj is not of type version");
597 Perl_croak(aTHX_ "Usage: version::qv(ver)");
601 if ( !SvVOK(ver) ) { /* only need to do with if not already v-string */
602 SV * const vs = sv_newmortal();
604 if ( SvNOK(ver) ) /* may get too much accuracy */
607 const STRLEN len = my_sprintf(tbuf,"%.9"NVgf, SvNVX(ver));
608 version = savepvn(tbuf, len);
612 version = savesvpv(ver);
614 (void)scan_version(version,vs,TRUE);
621 PUSHs(sv_2mortal(new_version(ver)));
633 Perl_croak(aTHX_ "Usage: utf8::is_utf8(sv)");
635 const SV * const sv = ST(0);
648 Perl_croak(aTHX_ "Usage: utf8::valid(sv)");
650 SV * const sv = ST(0);
652 const char * const s = SvPV_const(sv,len);
653 if (!SvUTF8(sv) || is_utf8_string((const U8*)s,len))
665 Perl_croak(aTHX_ "Usage: utf8::encode(sv)");
666 sv_utf8_encode(ST(0));
674 Perl_croak(aTHX_ "Usage: utf8::decode(sv)");
676 SV * const sv = ST(0);
677 const bool RETVAL = sv_utf8_decode(sv);
678 ST(0) = boolSV(RETVAL);
688 Perl_croak(aTHX_ "Usage: utf8::upgrade(sv)");
690 SV * const sv = ST(0);
694 RETVAL = sv_utf8_upgrade(sv);
695 XSprePUSH; PUSHi((IV)RETVAL);
700 XS(XS_utf8_downgrade)
703 if (items < 1 || items > 2)
704 Perl_croak(aTHX_ "Usage: utf8::downgrade(sv, failok=0)");
706 SV * const sv = ST(0);
707 const bool failok = (items < 2) ? 0 : (int)SvIV(ST(1));
708 const bool RETVAL = sv_utf8_downgrade(sv, failok);
710 ST(0) = boolSV(RETVAL);
716 XS(XS_utf8_native_to_unicode)
719 const UV uv = SvUV(ST(0));
722 Perl_croak(aTHX_ "Usage: utf8::native_to_unicode(sv)");
724 ST(0) = sv_2mortal(newSViv(NATIVE_TO_UNI(uv)));
728 XS(XS_utf8_unicode_to_native)
731 const UV uv = SvUV(ST(0));
734 Perl_croak(aTHX_ "Usage: utf8::unicode_to_native(sv)");
736 ST(0) = sv_2mortal(newSViv(UNI_TO_NATIVE(uv)));
740 XS(XS_Internals_SvREADONLY) /* This is dangerous stuff. */
743 SV * const sv = SvRV(ST(0));
751 else if (items == 2) {
757 /* I hope you really know what you are doing. */
762 XSRETURN_UNDEF; /* Can't happen. */
765 XS(XS_Internals_SvREFCNT) /* This is dangerous stuff. */
768 SV * const sv = SvRV(ST(0));
771 XSRETURN_IV(SvREFCNT(sv) - 1); /* Minus the ref created for us. */
772 else if (items == 2) {
773 /* I hope you really know what you are doing. */
774 SvREFCNT(sv) = SvIV(ST(1));
775 XSRETURN_IV(SvREFCNT(sv));
777 XSRETURN_UNDEF; /* Can't happen. */
780 XS(XS_Internals_hv_clear_placehold)
785 Perl_croak(aTHX_ "Usage: UNIVERSAL::hv_clear_placeholders(hv)");
787 HV * const hv = (HV *) SvRV(ST(0));
788 hv_clear_placeholders(hv);
793 XS(XS_Regexp_DESTROY)
798 XS(XS_PerlIO_get_layers)
801 if (items < 1 || items % 2 == 0)
802 Perl_croak(aTHX_ "Usage: PerlIO_get_layers(filehandle[,args])");
809 bool details = FALSE;
813 for (svp = MARK + 2; svp <= SP; svp += 2) {
814 SV * const * const varp = svp;
815 SV * const * const valp = svp + 1;
817 const char * const key = SvPV_const(*varp, klen);
821 if (klen == 5 && memEQ(key, "input", 5)) {
822 input = SvTRUE(*valp);
827 if (klen == 6 && memEQ(key, "output", 6)) {
828 input = !SvTRUE(*valp);
833 if (klen == 7 && memEQ(key, "details", 7)) {
834 details = SvTRUE(*valp);
841 "get_layers: unknown argument '%s'",
853 if (SvROK(sv) && isGV(SvRV(sv)))
856 gv = gv_fetchsv(sv, FALSE, SVt_PVIO);
859 if (gv && (io = GvIO(gv))) {
861 AV* const av = PerlIO_get_layers(aTHX_ input ?
862 IoIFP(io) : IoOFP(io));
864 const I32 last = av_len(av);
867 for (i = last; i >= 0; i -= 3) {
868 SV * const * const namsvp = av_fetch(av, i - 2, FALSE);
869 SV * const * const argsvp = av_fetch(av, i - 1, FALSE);
870 SV * const * const flgsvp = av_fetch(av, i, FALSE);
872 const bool namok = namsvp && *namsvp && SvPOK(*namsvp);
873 const bool argok = argsvp && *argsvp && SvPOK(*argsvp);
874 const bool flgok = flgsvp && *flgsvp && SvIOK(*flgsvp);
878 ? newSVpvn(SvPVX_const(*namsvp), SvCUR(*namsvp))
881 ? newSVpvn(SvPVX_const(*argsvp), SvCUR(*argsvp))
884 XPUSHi(SvIVX(*flgsvp));
886 XPUSHs(&PL_sv_undef);
891 XPUSHs(Perl_newSVpvf(aTHX_ "%"SVf"(%"SVf")",
894 XPUSHs(Perl_newSVpvf(aTHX_ "%"SVf, *namsvp));
896 XPUSHs(&PL_sv_undef);
899 const IV flags = SvIVX(*flgsvp);
901 if (flags & PERLIO_F_UTF8) {
902 XPUSHs(newSVpvn("utf8", 4));
919 XS(XS_Internals_hash_seed)
921 /* Using dXSARGS would also have dITEM and dSP,
922 * which define 2 unused local variables. */
925 PERL_UNUSED_VAR(mark);
926 XSRETURN_UV(PERL_HASH_SEED);
929 XS(XS_Internals_rehash_seed)
931 /* Using dXSARGS would also have dITEM and dSP,
932 * which define 2 unused local variables. */
935 PERL_UNUSED_VAR(mark);
936 XSRETURN_UV(PL_rehash_seed);
939 XS(XS_Internals_HvREHASH) /* Subject to change */
943 const HV * const hv = (HV *) SvRV(ST(0));
944 if (items == 1 && SvTYPE(hv) == SVt_PVHV) {
951 Perl_croak(aTHX_ "Internals::HvREHASH $hashref");
954 XS(XS_utf8_SWASHGET_heavy)
959 "Usage: utf8::SWASHGET_heavy($self, $start, $len, DEBUG)");
963 const I32 i_start = (I32)SvIV(ST(1));
964 const I32 i_len = (I32)SvIV(ST(2));
965 const I32 debug = (I32)SvIV(ST(3));
966 U32 start = (U32)i_start;
967 U32 len = (U32)i_len;
970 SV **listsvp, **typesvp, **bitssvp, **nonesvp, **extssvp, *swatch;
971 U8 *l, *lend, *x, *xend, *s, *nextline;
972 STRLEN lcur, xcur, scur;
975 U32 bits, none, end, octets;
977 if (SvROK(self) && SvTYPE(SvRV(self))==SVt_PVHV)
978 hv = (HV*)SvRV(self);
980 Perl_croak(aTHX_ "hv is not a hash reference");
983 Perl_croak(aTHX_ "SWASHGET negative start");
985 Perl_croak(aTHX_ "SWASHGET negative len");
987 listsvp = hv_fetch(hv, "LIST", 4, FALSE);
988 typesvp = hv_fetch(hv, "TYPE", 4, FALSE);
989 bitssvp = hv_fetch(hv, "BITS", 4, FALSE);
990 nonesvp = hv_fetch(hv, "NONE", 4, FALSE);
991 extssvp = hv_fetch(hv, "EXTRAS", 6, FALSE);
992 typestr = SvPV_nolen(*typesvp);
993 typeto = typestr[0] == 'T' && typestr[1] == 'o';
994 bits = (U32)SvUV(*bitssvp);
995 none = (U32)SvUV(*nonesvp);
997 octets = bits >> 3; /* if bits == 1, then octets == 0 */
999 if (bits != 1 && bits != 8 && bits != 16 && bits != 32) {
1000 Perl_croak(aTHX_ "SWASHGET unknown bits %"UVuf, (UV)bits);
1003 char* selfstr = SvPV_nolen(self);
1004 PerlIO_printf(Perl_error_log, "SWASHGET ");
1005 PerlIO_printf(Perl_error_log, "%s %"UVuf" %"UVuf" ",
1006 selfstr, (UV)start, (UV)len);
1007 PerlIO_printf(Perl_error_log, "[%s/%"UVuf"/%"UVuf"]\n",
1008 typestr, (UV)bits, (UV)none);
1011 /* initialize $swatch */
1012 swatch = newSVpvn("",0);
1013 scur = octets ? (len * octets) : (len + 7) / 8;
1014 SvGROW(swatch, scur + 1);
1015 s = (U8*)SvPVX(swatch);
1016 if (octets && none) {
1017 const U8* e = s + scur;
1020 *s++ = (U8)(none & 0xff);
1021 else if (bits == 16) {
1022 *s++ = (U8)((none >> 8) & 0xff);
1023 *s++ = (U8)( none & 0xff);
1025 else if (bits == 32) {
1026 *s++ = (U8)((none >> 24) & 0xff);
1027 *s++ = (U8)((none >> 16) & 0xff);
1028 *s++ = (U8)((none >> 8) & 0xff);
1029 *s++ = (U8)( none & 0xff);
1035 (void)memzero((U8*)s, scur + 1);
1037 SvCUR_set(swatch, scur);
1038 s = (U8*)SvPVX(swatch);
1040 /* read $self->{LIST} */
1041 l = (U8*)SvPV(*listsvp, lcur);
1044 U32 min, max, val, key;
1046 I32 flags = PERL_SCAN_SILENT_ILLDIGIT | PERL_SCAN_DISALLOW_PREFIX;
1048 nextline = (U8*)memchr(l, '\n', lend - l);
1051 min = (U32)grok_hex(l, &numlen, &flags, NULL);
1054 else if (nextline) {
1055 l = nextline + 1; /* 1 is length of "\n" */
1059 l = lend; /* to the end of LIST, at which no \n */
1065 flags = PERL_SCAN_SILENT_ILLDIGIT | PERL_SCAN_DISALLOW_PREFIX;
1067 max = (U32)grok_hex(l, &numlen, &flags, NULL);
1076 flags = PERL_SCAN_SILENT_ILLDIGIT |
1077 PERL_SCAN_DISALLOW_PREFIX;
1079 val = (U32)grok_hex(l, &numlen, &flags, NULL);
1088 Perl_croak(aTHX_ "%s: illegal mapping '%s'",
1099 Perl_croak(aTHX_ "%s: illegal mapping '%s'",
1115 PerlIO_printf(Perl_error_log,
1116 "%"UVuf" %"UVuf" %"UVuf"\n",
1117 (UV)min, (UV)max, (UV)val);
1120 if (!none || val < none) {
1125 for (key = min; key <= max; key++) {
1130 PerlIO_printf(Perl_error_log,
1131 "%"UVuf" => %"UVuf"\n",
1135 /* offset must be non-negative (start <= min <= key < end) */
1136 offset = (key - start) * octets;
1138 s[offset] = (U8)(val & 0xff);
1139 else if (bits == 16) {
1140 s[offset ] = (U8)((val >> 8) & 0xff);
1141 s[offset + 1] = (U8)( val & 0xff);
1143 else if (bits == 32) {
1144 s[offset ] = (U8)((val >> 24) & 0xff);
1145 s[offset + 1] = (U8)((val >> 16) & 0xff);
1146 s[offset + 2] = (U8)((val >> 8) & 0xff);
1147 s[offset + 3] = (U8)( val & 0xff);
1150 if (!none || val < none)
1157 for (key = min; key <= max; key++) {
1158 U32 offset = key - start;
1162 PerlIO_printf(Perl_error_log,
1163 "%"UVuf" => 1\n", (UV)key);
1165 s[offset >> 3] |= 1 << (offset & 7);
1171 /* read $self->{EXTRAS} */
1172 x = (U8*)SvPV(*extssvp, xcur);
1184 nextline = (U8*)memchr(x, '\n', xend - x);
1186 if (opc != '-' && opc != '+' && opc != '!' && opc != '&') {
1200 namelen = nextline - namestr;
1204 namelen = xend - namestr;
1210 Newx(tmpstr, namelen + 1, U8);
1211 Move(namestr, tmpstr, namelen, U8);
1212 tmpstr[namelen] = '\0';
1213 PerlIO_printf(Perl_error_log,
1214 "INDIRECT %c %s\n", opc, tmpstr);
1222 othersvp = hv_fetch(hv, namestr, namelen, FALSE);
1223 if (*othersvp && SvROK(*othersvp) &&
1224 SvTYPE(SvRV(*othersvp))==SVt_PVHV)
1225 otherhv = (HV*)SvRV(*othersvp);
1227 Perl_croak(aTHX_ "otherhv is not a hash reference");
1229 otherbitssvp = hv_fetch(otherhv, "BITS", 4, FALSE);
1230 otherbits = (U32)SvUV(*otherbitssvp);
1231 if (bits < otherbits)
1232 Perl_croak(aTHX_ "SWASHGET size mismatch");
1242 PUSHs(sv_2mortal(newSViv(start)));
1243 PUSHs(sv_2mortal(newSViv(len)));
1245 if (call_method("SWASHGET", G_SCALAR)) {
1248 SV* tmpsv = *PL_stack_sp--;
1249 o = (U8*)SvPV(tmpsv, olen);
1252 Perl_croak(aTHX_ "SWASHGET didn't return valid swatch");
1253 s = SvPV(swatch, slen);
1254 if (bits == 1 && otherbits == 1) {
1256 Perl_croak(aTHX_ "SWASHGET length mismatch");
1280 U32 otheroctets = otherbits / 8;
1282 U8* send = s + slen;
1287 if (otherbits == 1) {
1288 val = (o[offset >> 3] >> (offset & 7)) & 1;
1292 U32 vlen = otheroctets;
1300 if (opc == '+' && val)
1302 else if (opc == '!' && !val)
1304 else if (opc == '-' && val)
1306 else if (opc == '&' && !val)
1314 *s++ = (U8)( val & 0xff);
1315 else if (bits == 16) {
1316 *s++ = (U8)((val >> 8) & 0xff);
1317 *s++ = (U8)( val & 0xff);
1319 else if (bits == 32) {
1320 *s++ = (U8)((val >> 24) & 0xff);
1321 *s++ = (U8)((val >> 16) & 0xff);
1322 *s++ = (U8)((val >> 8) & 0xff);
1323 *s++ = (U8)( val & 0xff);
1334 U8* s = (U8*)SvPVX(swatch);
1335 PerlIO_printf(Perl_error_log, "CELLS ");
1338 for (key = 0; key < len; key++) {
1339 int val = (s[key >> 3] >> (key & 7)) & 1;
1340 PerlIO_printf(Perl_error_log, val ? "1 " : "0 ");
1344 U8* send = s + len * octets;
1352 PerlIO_printf(Perl_error_log, "%"UVuf" ", (UV)val);
1355 PerlIO_printf(Perl_error_log, "\n");
1367 * c-indentation-style: bsd
1369 * indent-tabs-mode: t
1372 * ex: set ts=8 sts=4 sw=4 noet: