3 * Copyright (C) 2005, by Larry Wall and others
5 * You may distribute under the terms of either the GNU General Public
6 * License or the Artistic License, as specified in the README file.
11 * "Anything that Hobbits had no immediate use for, but were unwilling to
12 * throw away, they called a mathom. Their dwellings were apt to become
13 * rather crowded with mathoms, and many of the presents that passed from
14 * hand to hand were of that sort."
18 * This file contains mathoms, various binary artifacts from previous
19 * versions of Perl. For binary or source compatibility reasons, though,
20 * we cannot completely remove them from the core code.
27 #define PERL_IN_MATHOMS_C
30 /* ref() is now a macro using Perl_doref;
31 * this version provided for binary compatibility only.
34 Perl_ref(pTHX_ OP *o, I32 type)
36 return doref(o, type, TRUE);
42 Unsets the RV status of the SV, and decrements the reference count of
43 whatever was being referenced by the RV. This can almost be thought of
44 as a reversal of C<newSVrv>. This is C<sv_unref_flags> with the C<flag>
45 being zero. See C<SvROK_off>.
51 Perl_sv_unref(pTHX_ SV *sv)
53 sv_unref_flags(sv, 0);
59 Taint an SV. Use C<SvTAINTED_on> instead.
64 Perl_sv_taint(pTHX_ SV *sv)
66 sv_magic((sv), Nullsv, PERL_MAGIC_taint, Nullch, 0);
69 /* sv_2iv() is now a macro using Perl_sv_2iv_flags();
70 * this function provided for binary compatibility only
74 Perl_sv_2iv(pTHX_ register SV *sv)
76 return sv_2iv_flags(sv, SV_GMAGIC);
79 /* sv_2uv() is now a macro using Perl_sv_2uv_flags();
80 * this function provided for binary compatibility only
84 Perl_sv_2uv(pTHX_ register SV *sv)
86 return sv_2uv_flags(sv, SV_GMAGIC);
89 /* sv_2pv() is now a macro using Perl_sv_2pv_flags();
90 * this function provided for binary compatibility only
94 Perl_sv_2pv(pTHX_ register SV *sv, STRLEN *lp)
96 return sv_2pv_flags(sv, lp, SV_GMAGIC);
100 =for apidoc sv_force_normal
102 Undo various types of fakery on an SV: if the PV is a shared string, make
103 a private copy; if we're a ref, stop refing; if we're a glob, downgrade to
104 an xpvmg. See also C<sv_force_normal_flags>.
110 Perl_sv_force_normal(pTHX_ register SV *sv)
112 sv_force_normal_flags(sv, 0);
115 /* sv_setsv() is now a macro using Perl_sv_setsv_flags();
116 * this function provided for binary compatibility only
120 Perl_sv_setsv(pTHX_ SV *dstr, register SV *sstr)
122 sv_setsv_flags(dstr, sstr, SV_GMAGIC);
125 /* sv_catpvn() is now a macro using Perl_sv_catpvn_flags();
126 * this function provided for binary compatibility only
130 Perl_sv_catpvn(pTHX_ SV *dsv, const char* sstr, STRLEN slen)
132 sv_catpvn_flags(dsv, sstr, slen, SV_GMAGIC);
135 /* sv_catsv() is now a macro using Perl_sv_catsv_flags();
136 * this function provided for binary compatibility only
140 Perl_sv_catsv(pTHX_ SV *dstr, register SV *sstr)
142 sv_catsv_flags(dstr, sstr, SV_GMAGIC);
148 A private implementation of the C<SvIVx> macro for compilers which can't
149 cope with complex macro expressions. Always use the macro instead.
155 Perl_sv_iv(pTHX_ register SV *sv)
159 return (IV)SvUVX(sv);
168 A private implementation of the C<SvUVx> macro for compilers which can't
169 cope with complex macro expressions. Always use the macro instead.
175 Perl_sv_uv(pTHX_ register SV *sv)
180 return (UV)SvIVX(sv);
188 A private implementation of the C<SvNVx> macro for compilers which can't
189 cope with complex macro expressions. Always use the macro instead.
195 Perl_sv_nv(pTHX_ register SV *sv)
205 Use the C<SvPV_nolen> macro instead
209 A private implementation of the C<SvPV> macro for compilers which can't
210 cope with complex macro expressions. Always use the macro instead.
216 Perl_sv_pvn(pTHX_ SV *sv, STRLEN *lp)
222 return sv_2pv(sv, lp);
227 Perl_sv_pvn_nomg(pTHX_ register SV *sv, STRLEN *lp)
233 return sv_2pv_flags(sv, lp, 0);
236 /* sv_pv() is now a macro using SvPV_nolen();
237 * this function provided for binary compatibility only
241 Perl_sv_pv(pTHX_ SV *sv)
246 return sv_2pv(sv, 0);
249 /* sv_pvn_force() is now a macro using Perl_sv_pvn_force_flags();
250 * this function provided for binary compatibility only
254 Perl_sv_pvn_force(pTHX_ SV *sv, STRLEN *lp)
256 return sv_pvn_force_flags(sv, lp, SV_GMAGIC);
259 /* sv_pvbyte () is now a macro using Perl_sv_2pv_flags();
260 * this function provided for binary compatibility only
264 Perl_sv_pvbyte(pTHX_ SV *sv)
266 sv_utf8_downgrade(sv,0);
271 =for apidoc sv_pvbyte
273 Use C<SvPVbyte_nolen> instead.
275 =for apidoc sv_pvbyten
277 A private implementation of the C<SvPVbyte> macro for compilers
278 which can't cope with complex macro expressions. Always use the macro
285 Perl_sv_pvbyten(pTHX_ SV *sv, STRLEN *lp)
287 sv_utf8_downgrade(sv,0);
288 return sv_pvn(sv,lp);
291 /* sv_pvutf8 () is now a macro using Perl_sv_2pv_flags();
292 * this function provided for binary compatibility only
296 Perl_sv_pvutf8(pTHX_ SV *sv)
303 =for apidoc sv_pvutf8
305 Use the C<SvPVutf8_nolen> macro instead
307 =for apidoc sv_pvutf8n
309 A private implementation of the C<SvPVutf8> macro for compilers
310 which can't cope with complex macro expressions. Always use the macro
317 Perl_sv_pvutf8n(pTHX_ SV *sv, STRLEN *lp)
320 return sv_pvn(sv,lp);
323 /* sv_utf8_upgrade() is now a macro using sv_utf8_upgrade_flags();
324 * this function provided for binary compatibility only
328 Perl_sv_utf8_upgrade(pTHX_ register SV *sv)
330 return sv_utf8_upgrade_flags(sv, SV_GMAGIC);
334 =for apidoc A|U8 *|uvchr_to_utf8|U8 *d|UV uv
336 Adds the UTF-8 representation of the Native codepoint C<uv> to the end
337 of the string C<d>; C<d> should be have at least C<UTF8_MAXBYTES+1> free
338 bytes available. The return value is the pointer to the byte after the
339 end of the new character. In other words,
341 d = uvchr_to_utf8(d, uv);
343 is the recommended wide native character-aware way of saying
350 /* On ASCII machines this is normally a macro but we want a
351 real function in case XS code wants it
353 #undef Perl_uvchr_to_utf8
355 Perl_uvchr_to_utf8(pTHX_ U8 *d, UV uv)
357 return Perl_uvuni_to_utf8_flags(aTHX_ d, NATIVE_TO_UNI(uv), 0);
362 =for apidoc A|UV|utf8n_to_uvchr|U8 *s|STRLEN curlen|STRLEN *retlen|U32
365 Returns the native character value of the first character in the string
367 which is assumed to be in UTF-8 encoding; C<retlen> will be set to the
368 length, in bytes, of that character.
370 Allows length and flags to be passed to low level routine.
374 /* On ASCII machines this is normally a macro but we want
375 a real function in case XS code wants it
377 #undef Perl_utf8n_to_uvchr
379 Perl_utf8n_to_uvchr(pTHX_ const U8 *s, STRLEN curlen, STRLEN *retlen,
382 const UV uv = Perl_utf8n_to_uvuni(aTHX_ s, curlen, retlen, flags);
383 return UNI_TO_NATIVE(uv);
386 Perl_fprintf_nocontext(PerlIO *stream, const char *format, ...)
390 va_start(arglist, format);
391 return PerlIO_vprintf(stream, format, arglist);
395 Perl_printf_nocontext(const char *format, ...)
399 va_start(arglist, format);
400 return PerlIO_vprintf(PerlIO_stdout(), format, arglist);
403 #if defined(HUGE_VAL) || (defined(USE_LONG_DOUBLE) && defined(HUGE_VALL))
405 * This hack is to force load of "huge" support from libm.a
406 * So it is in perl for (say) POSIX to use.
407 * Needed for SunOS with Sun's 'acc' for example.
412 # if defined(USE_LONG_DOUBLE) && defined(HUGE_VALL)
421 perlsio_binmode(FILE *fp, int iotype, int mode)
424 * This used to be contents of do_binmode in doio.c
427 # if defined(atarist) || defined(__MINT__)
430 ((FILE *) fp)->_flag |= _IOBIN;
432 ((FILE *) fp)->_flag &= ~_IOBIN;
439 if (PerlLIO_setmode(fp, mode) != -1) {
441 if (PerlLIO_setmode(fileno(fp), mode) != -1) {
443 # if defined(WIN32) && defined(__BORLANDC__)
445 * The translation mode of the stream is maintained independent
447 * the translation mode of the fd in the Borland RTL (heavy
448 * digging through their runtime sources reveal). User has to
450 * the mode explicitly for the stream (though they don't
452 * this anywhere). GSAR 97-5-24
458 fp->flags &= ~_F_BIN;
466 # if defined(USEMYBINMODE)
468 if (my_binmode(fp, iotype, mode) != FALSE)
474 PERL_UNUSED_ARG(iotype);
475 PERL_UNUSED_ARG(mode);
482 /* compatibility with versions <= 5.003. */
484 Perl_gv_fullname(pTHX_ SV *sv, const GV *gv)
486 gv_fullname3(sv, gv, sv == (const SV*)gv ? "*" : "");
489 /* compatibility with versions <= 5.003. */
491 Perl_gv_efullname(pTHX_ SV *sv, const GV *gv)
493 gv_efullname3(sv, gv, sv == (const SV*)gv ? "*" : "");
497 Perl_gv_fullname3(pTHX_ SV *sv, const GV *gv, const char *prefix)
499 gv_fullname4(sv, gv, prefix, TRUE);
503 Perl_gv_efullname3(pTHX_ SV *sv, const GV *gv, const char *prefix)
505 gv_efullname4(sv, gv, prefix, TRUE);
509 Perl_av_fake(pTHX_ register I32 size, register SV **strp)
512 register AV * const av = (AV*)NEWSV(9,0);
514 sv_upgrade((SV *)av, SVt_PVAV);
515 Newx(ary,size+1,SV*);
517 Copy(strp,ary,size,SV*);
519 SvPV_set(av, (char*)ary);
520 AvFILLp(av) = size - 1;
521 AvMAX(av) = size - 1;
531 Perl_do_open9(pTHX_ GV *gv, register const char *name, I32 len, int
533 int rawmode, int rawperm, PerlIO *supplied_fp, SV *svs,
536 PERL_UNUSED_ARG(num_svs);
537 return do_openn(gv, name, len, as_raw, rawmode, rawperm,
538 supplied_fp, &svs, 1);
542 Perl_do_binmode(pTHX_ PerlIO *fp, int iotype, int mode)
544 /* The old body of this is now in non-LAYER part of perlio.c
545 * This is a stub for any XS code which might have been calling it.
547 const char *name = ":raw";
548 #ifdef PERLIO_USING_CRLF
549 if (!(mode & O_BINARY))
552 return PerlIO_binmode(aTHX_ fp, iotype, mode, name);
558 * c-indentation-style: bsd
560 * indent-tabs-mode: t
563 * ex: set ts=8 sts=4 sw=4 noet: