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sv_taint() can easily be replaced by a macro.
[perl5.git] / mathoms.c
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1/* mathoms.c
2 *
3 * Copyright (C) 2005, by Larry Wall and others
4 *
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.
7 *
8 */
9
10/*
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."
15 */
16
17/*
18 * This file contains mathoms, various binary artifacts from previous
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19 * versions of Perl. For binary or source compatibility reasons, though,
20 * we cannot completely remove them from the core code.
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21 *
22 * SMP - Oct. 24, 2005
23 *
24 */
25
26#include "EXTERN.h"
27#define PERL_IN_MATHOMS_C
28#include "perl.h"
29
30/* ref() is now a macro using Perl_doref;
31 * this version provided for binary compatibility only.
32 */
33OP *
34Perl_ref(pTHX_ OP *o, I32 type)
35{
36 return doref(o, type, TRUE);
37}
38
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39/*
40=for apidoc sv_taint
41
42Taint an SV. Use C<SvTAINTED_on> instead.
43=cut
44*/
45
46void
47Perl_sv_taint(pTHX_ SV *sv)
48{
49 sv_magic((sv), Nullsv, PERL_MAGIC_taint, Nullch, 0);
50}
51
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52/* sv_2iv() is now a macro using Perl_sv_2iv_flags();
53 * this function provided for binary compatibility only
54 */
55
56IV
57Perl_sv_2iv(pTHX_ register SV *sv)
58{
59 return sv_2iv_flags(sv, SV_GMAGIC);
60}
61
62/* sv_2uv() is now a macro using Perl_sv_2uv_flags();
63 * this function provided for binary compatibility only
64 */
65
66UV
67Perl_sv_2uv(pTHX_ register SV *sv)
68{
69 return sv_2uv_flags(sv, SV_GMAGIC);
70}
71
72/* sv_2pv() is now a macro using Perl_sv_2pv_flags();
73 * this function provided for binary compatibility only
74 */
75
76char *
77Perl_sv_2pv(pTHX_ register SV *sv, STRLEN *lp)
78{
79 return sv_2pv_flags(sv, lp, SV_GMAGIC);
80}
81
82
83/* sv_setsv() is now a macro using Perl_sv_setsv_flags();
84 * this function provided for binary compatibility only
85 */
86
87void
88Perl_sv_setsv(pTHX_ SV *dstr, register SV *sstr)
89{
90 sv_setsv_flags(dstr, sstr, SV_GMAGIC);
91}
92
93/* sv_catpvn() is now a macro using Perl_sv_catpvn_flags();
94 * this function provided for binary compatibility only
95 */
96
97void
98Perl_sv_catpvn(pTHX_ SV *dsv, const char* sstr, STRLEN slen)
99{
100 sv_catpvn_flags(dsv, sstr, slen, SV_GMAGIC);
101}
102
103/* sv_catsv() is now a macro using Perl_sv_catsv_flags();
104 * this function provided for binary compatibility only
105 */
106
107void
108Perl_sv_catsv(pTHX_ SV *dstr, register SV *sstr)
109{
110 sv_catsv_flags(dstr, sstr, SV_GMAGIC);
111}
112
113/* sv_pv() is now a macro using SvPV_nolen();
114 * this function provided for binary compatibility only
115 */
116
117char *
118Perl_sv_pv(pTHX_ SV *sv)
119{
120 if (SvPOK(sv))
121 return SvPVX(sv);
122
123 return sv_2pv(sv, 0);
124}
125
126/* sv_pvn_force() is now a macro using Perl_sv_pvn_force_flags();
127 * this function provided for binary compatibility only
128 */
129
130char *
131Perl_sv_pvn_force(pTHX_ SV *sv, STRLEN *lp)
132{
133 return sv_pvn_force_flags(sv, lp, SV_GMAGIC);
134}
135
136/* sv_pvbyte () is now a macro using Perl_sv_2pv_flags();
137 * this function provided for binary compatibility only
138 */
139
140char *
141Perl_sv_pvbyte(pTHX_ SV *sv)
142{
143 sv_utf8_downgrade(sv,0);
144 return sv_pv(sv);
145}
146
147/* sv_pvutf8 () is now a macro using Perl_sv_2pv_flags();
148 * this function provided for binary compatibility only
149 */
150
151char *
152Perl_sv_pvutf8(pTHX_ SV *sv)
153{
154 sv_utf8_upgrade(sv);
155 return sv_pv(sv);
156}
157
158/*
159=for apidoc A|U8 *|uvchr_to_utf8|U8 *d|UV uv
160
161Adds the UTF-8 representation of the Native codepoint C<uv> to the end
162of the string C<d>; C<d> should be have at least C<UTF8_MAXBYTES+1> free
163bytes available. The return value is the pointer to the byte after the
164end of the new character. In other words,
165
166 d = uvchr_to_utf8(d, uv);
167
168is the recommended wide native character-aware way of saying
169
170 *(d++) = uv;
171
172=cut
173*/
174
175/* On ASCII machines this is normally a macro but we want a
176 real function in case XS code wants it
177*/
178#undef Perl_uvchr_to_utf8
179U8 *
180Perl_uvchr_to_utf8(pTHX_ U8 *d, UV uv)
181{
182 return Perl_uvuni_to_utf8_flags(aTHX_ d, NATIVE_TO_UNI(uv), 0);
183}
184
185
186/*
187=for apidoc A|UV|utf8n_to_uvchr|U8 *s|STRLEN curlen|STRLEN *retlen|U32
188flags
189
190Returns the native character value of the first character in the string
191C<s>
192which is assumed to be in UTF-8 encoding; C<retlen> will be set to the
193length, in bytes, of that character.
194
195Allows length and flags to be passed to low level routine.
196
197=cut
198*/
199/* On ASCII machines this is normally a macro but we want
200 a real function in case XS code wants it
201*/
202#undef Perl_utf8n_to_uvchr
203UV
204Perl_utf8n_to_uvchr(pTHX_ const U8 *s, STRLEN curlen, STRLEN *retlen,
205U32 flags)
206{
207 const UV uv = Perl_utf8n_to_uvuni(aTHX_ s, curlen, retlen, flags);
208 return UNI_TO_NATIVE(uv);
209}
210int
211Perl_fprintf_nocontext(PerlIO *stream, const char *format, ...)
212{
213 dTHXs;
214 va_list(arglist);
215 va_start(arglist, format);
216 return PerlIO_vprintf(stream, format, arglist);
217}
218
219int
220Perl_printf_nocontext(const char *format, ...)
221{
222 dTHX;
223 va_list(arglist);
224 va_start(arglist, format);
225 return PerlIO_vprintf(PerlIO_stdout(), format, arglist);
226}
227
228#if defined(HUGE_VAL) || (defined(USE_LONG_DOUBLE) && defined(HUGE_VALL))
229/*
230 * This hack is to force load of "huge" support from libm.a
231 * So it is in perl for (say) POSIX to use.
232 * Needed for SunOS with Sun's 'acc' for example.
233 */
234NV
235Perl_huge(void)
236{
237# if defined(USE_LONG_DOUBLE) && defined(HUGE_VALL)
238 return HUGE_VALL;
239# endif
240 return HUGE_VAL;
241}
242#endif
243
244#ifndef USE_SFIO
245int
246perlsio_binmode(FILE *fp, int iotype, int mode)
247{
248 /*
249 * This used to be contents of do_binmode in doio.c
250 */
251#ifdef DOSISH
252# if defined(atarist) || defined(__MINT__)
253 if (!fflush(fp)) {
254 if (mode & O_BINARY)
255 ((FILE *) fp)->_flag |= _IOBIN;
256 else
257 ((FILE *) fp)->_flag &= ~_IOBIN;
258 return 1;
259 }
260 return 0;
261# else
262 dTHX;
263#ifdef NETWARE
264 if (PerlLIO_setmode(fp, mode) != -1) {
265#else
266 if (PerlLIO_setmode(fileno(fp), mode) != -1) {
267#endif
268# if defined(WIN32) && defined(__BORLANDC__)
269 /*
270 * The translation mode of the stream is maintained independent
271of
272 * the translation mode of the fd in the Borland RTL (heavy
273 * digging through their runtime sources reveal). User has to
274set
275 * the mode explicitly for the stream (though they don't
276document
277 * this anywhere). GSAR 97-5-24
278 */
279 fseek(fp, 0L, 0);
280 if (mode & O_BINARY)
281 fp->flags |= _F_BIN;
282 else
283 fp->flags &= ~_F_BIN;
284# endif
285 return 1;
286 }
287 else
288 return 0;
289# endif
290#else
291# if defined(USEMYBINMODE)
292 dTHX;
293 if (my_binmode(fp, iotype, mode) != FALSE)
294 return 1;
295 else
296 return 0;
297# else
298 PERL_UNUSED_ARG(fp);
299 PERL_UNUSED_ARG(iotype);
300 PERL_UNUSED_ARG(mode);
301 return 1;
302# endif
303#endif
304}
305#endif /* sfio */
306
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307/* compatibility with versions <= 5.003. */
308void
309Perl_gv_fullname(pTHX_ SV *sv, const GV *gv)
310{
311 gv_fullname3(sv, gv, sv == (const SV*)gv ? "*" : "");
312}
313
314/* compatibility with versions <= 5.003. */
315void
316Perl_gv_efullname(pTHX_ SV *sv, const GV *gv)
317{
318 gv_efullname3(sv, gv, sv == (const SV*)gv ? "*" : "");
319}
320
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321void
322Perl_gv_fullname3(pTHX_ SV *sv, const GV *gv, const char *prefix)
323{
324 gv_fullname4(sv, gv, prefix, TRUE);
325}
326
327void
328Perl_gv_efullname3(pTHX_ SV *sv, const GV *gv, const char *prefix)
329{
330 gv_efullname4(sv, gv, prefix, TRUE);
331}
332
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333AV *
334Perl_av_fake(pTHX_ register I32 size, register SV **strp)
335{
336 register SV** ary;
337 register AV * const av = (AV*)NEWSV(9,0);
338
339 sv_upgrade((SV *)av, SVt_PVAV);
340 Newx(ary,size+1,SV*);
341 AvALLOC(av) = ary;
342 Copy(strp,ary,size,SV*);
343 AvREIFY_only(av);
344 SvPV_set(av, (char*)ary);
345 AvFILLp(av) = size - 1;
346 AvMAX(av) = size - 1;
347 while (size--) {
348 assert (*strp);
349 SvTEMP_off(*strp);
350 strp++;
351 }
352 return av;
353}
354
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355bool
356Perl_do_open9(pTHX_ GV *gv, register const char *name, I32 len, int
357as_raw,
358 int rawmode, int rawperm, PerlIO *supplied_fp, SV *svs,
359 I32 num_svs)
360{
361 PERL_UNUSED_ARG(num_svs);
362 return do_openn(gv, name, len, as_raw, rawmode, rawperm,
363 supplied_fp, &svs, 1);
364}
365
366int
367Perl_do_binmode(pTHX_ PerlIO *fp, int iotype, int mode)
368{
369 /* The old body of this is now in non-LAYER part of perlio.c
370 * This is a stub for any XS code which might have been calling it.
371 */
372 const char *name = ":raw";
373#ifdef PERLIO_USING_CRLF
374 if (!(mode & O_BINARY))
375 name = ":crlf";
376#endif
377 return PerlIO_binmode(aTHX_ fp, iotype, mode, name);
378}
379
380
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381/*
382 * Local variables:
383 * c-indentation-style: bsd
384 * c-basic-offset: 4
385 * indent-tabs-mode: t
386 * End:
387 *
388 * ex: set ts=8 sts=4 sw=4 noet:
389 */