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);
145 /* sv_pv() is now a macro using SvPV_nolen();
146 * this function provided for binary compatibility only
150 Perl_sv_pv(pTHX_ SV *sv)
155 return sv_2pv(sv, 0);
158 /* sv_pvn_force() is now a macro using Perl_sv_pvn_force_flags();
159 * this function provided for binary compatibility only
163 Perl_sv_pvn_force(pTHX_ SV *sv, STRLEN *lp)
165 return sv_pvn_force_flags(sv, lp, SV_GMAGIC);
168 /* sv_pvbyte () is now a macro using Perl_sv_2pv_flags();
169 * this function provided for binary compatibility only
173 Perl_sv_pvbyte(pTHX_ SV *sv)
175 sv_utf8_downgrade(sv,0);
179 /* sv_pvutf8 () is now a macro using Perl_sv_2pv_flags();
180 * this function provided for binary compatibility only
184 Perl_sv_pvutf8(pTHX_ SV *sv)
191 =for apidoc A|U8 *|uvchr_to_utf8|U8 *d|UV uv
193 Adds the UTF-8 representation of the Native codepoint C<uv> to the end
194 of the string C<d>; C<d> should be have at least C<UTF8_MAXBYTES+1> free
195 bytes available. The return value is the pointer to the byte after the
196 end of the new character. In other words,
198 d = uvchr_to_utf8(d, uv);
200 is the recommended wide native character-aware way of saying
207 /* On ASCII machines this is normally a macro but we want a
208 real function in case XS code wants it
210 #undef Perl_uvchr_to_utf8
212 Perl_uvchr_to_utf8(pTHX_ U8 *d, UV uv)
214 return Perl_uvuni_to_utf8_flags(aTHX_ d, NATIVE_TO_UNI(uv), 0);
219 =for apidoc A|UV|utf8n_to_uvchr|U8 *s|STRLEN curlen|STRLEN *retlen|U32
222 Returns the native character value of the first character in the string
224 which is assumed to be in UTF-8 encoding; C<retlen> will be set to the
225 length, in bytes, of that character.
227 Allows length and flags to be passed to low level routine.
231 /* On ASCII machines this is normally a macro but we want
232 a real function in case XS code wants it
234 #undef Perl_utf8n_to_uvchr
236 Perl_utf8n_to_uvchr(pTHX_ const U8 *s, STRLEN curlen, STRLEN *retlen,
239 const UV uv = Perl_utf8n_to_uvuni(aTHX_ s, curlen, retlen, flags);
240 return UNI_TO_NATIVE(uv);
243 Perl_fprintf_nocontext(PerlIO *stream, const char *format, ...)
247 va_start(arglist, format);
248 return PerlIO_vprintf(stream, format, arglist);
252 Perl_printf_nocontext(const char *format, ...)
256 va_start(arglist, format);
257 return PerlIO_vprintf(PerlIO_stdout(), format, arglist);
260 #if defined(HUGE_VAL) || (defined(USE_LONG_DOUBLE) && defined(HUGE_VALL))
262 * This hack is to force load of "huge" support from libm.a
263 * So it is in perl for (say) POSIX to use.
264 * Needed for SunOS with Sun's 'acc' for example.
269 # if defined(USE_LONG_DOUBLE) && defined(HUGE_VALL)
278 perlsio_binmode(FILE *fp, int iotype, int mode)
281 * This used to be contents of do_binmode in doio.c
284 # if defined(atarist) || defined(__MINT__)
287 ((FILE *) fp)->_flag |= _IOBIN;
289 ((FILE *) fp)->_flag &= ~_IOBIN;
296 if (PerlLIO_setmode(fp, mode) != -1) {
298 if (PerlLIO_setmode(fileno(fp), mode) != -1) {
300 # if defined(WIN32) && defined(__BORLANDC__)
302 * The translation mode of the stream is maintained independent
304 * the translation mode of the fd in the Borland RTL (heavy
305 * digging through their runtime sources reveal). User has to
307 * the mode explicitly for the stream (though they don't
309 * this anywhere). GSAR 97-5-24
315 fp->flags &= ~_F_BIN;
323 # if defined(USEMYBINMODE)
325 if (my_binmode(fp, iotype, mode) != FALSE)
331 PERL_UNUSED_ARG(iotype);
332 PERL_UNUSED_ARG(mode);
339 /* compatibility with versions <= 5.003. */
341 Perl_gv_fullname(pTHX_ SV *sv, const GV *gv)
343 gv_fullname3(sv, gv, sv == (const SV*)gv ? "*" : "");
346 /* compatibility with versions <= 5.003. */
348 Perl_gv_efullname(pTHX_ SV *sv, const GV *gv)
350 gv_efullname3(sv, gv, sv == (const SV*)gv ? "*" : "");
354 Perl_gv_fullname3(pTHX_ SV *sv, const GV *gv, const char *prefix)
356 gv_fullname4(sv, gv, prefix, TRUE);
360 Perl_gv_efullname3(pTHX_ SV *sv, const GV *gv, const char *prefix)
362 gv_efullname4(sv, gv, prefix, TRUE);
366 Perl_av_fake(pTHX_ register I32 size, register SV **strp)
369 register AV * const av = (AV*)NEWSV(9,0);
371 sv_upgrade((SV *)av, SVt_PVAV);
372 Newx(ary,size+1,SV*);
374 Copy(strp,ary,size,SV*);
376 SvPV_set(av, (char*)ary);
377 AvFILLp(av) = size - 1;
378 AvMAX(av) = size - 1;
388 Perl_do_open9(pTHX_ GV *gv, register const char *name, I32 len, int
390 int rawmode, int rawperm, PerlIO *supplied_fp, SV *svs,
393 PERL_UNUSED_ARG(num_svs);
394 return do_openn(gv, name, len, as_raw, rawmode, rawperm,
395 supplied_fp, &svs, 1);
399 Perl_do_binmode(pTHX_ PerlIO *fp, int iotype, int mode)
401 /* The old body of this is now in non-LAYER part of perlio.c
402 * This is a stub for any XS code which might have been calling it.
404 const char *name = ":raw";
405 #ifdef PERLIO_USING_CRLF
406 if (!(mode & O_BINARY))
409 return PerlIO_binmode(aTHX_ fp, iotype, mode, name);
415 * c-indentation-style: bsd
417 * indent-tabs-mode: t
420 * ex: set ts=8 sts=4 sw=4 noet: