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7ee2227d SP |
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 | |
f2f0f092 NC |
19 | * versions of Perl. For binary or source compatibility reasons, though, |
20 | * we cannot completely remove them from the core code. | |
7ee2227d SP |
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 | */ | |
33 | OP * | |
34 | Perl_ref(pTHX_ OP *o, I32 type) | |
35 | { | |
36 | return doref(o, type, TRUE); | |
37 | } | |
38 | ||
aae9cea0 NC |
39 | /* |
40 | =for apidoc sv_taint | |
41 | ||
42 | Taint an SV. Use C<SvTAINTED_on> instead. | |
43 | =cut | |
44 | */ | |
45 | ||
46 | void | |
47 | Perl_sv_taint(pTHX_ SV *sv) | |
48 | { | |
49 | sv_magic((sv), Nullsv, PERL_MAGIC_taint, Nullch, 0); | |
50 | } | |
51 | ||
7ee2227d SP |
52 | /* sv_2iv() is now a macro using Perl_sv_2iv_flags(); |
53 | * this function provided for binary compatibility only | |
54 | */ | |
55 | ||
56 | IV | |
57 | Perl_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 | ||
66 | UV | |
67 | Perl_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 | ||
76 | char * | |
77 | Perl_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 | ||
87 | void | |
88 | Perl_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 | ||
97 | void | |
98 | Perl_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 | ||
107 | void | |
108 | Perl_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 | ||
117 | char * | |
118 | Perl_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 | ||
130 | char * | |
131 | Perl_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 | ||
140 | char * | |
141 | Perl_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 | ||
151 | char * | |
152 | Perl_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 | ||
161 | Adds the UTF-8 representation of the Native codepoint C<uv> to the end | |
162 | of the string C<d>; C<d> should be have at least C<UTF8_MAXBYTES+1> free | |
163 | bytes available. The return value is the pointer to the byte after the | |
164 | end of the new character. In other words, | |
165 | ||
166 | d = uvchr_to_utf8(d, uv); | |
167 | ||
168 | is 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 | |
179 | U8 * | |
180 | Perl_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 | |
188 | flags | |
189 | ||
190 | Returns the native character value of the first character in the string | |
191 | C<s> | |
192 | which is assumed to be in UTF-8 encoding; C<retlen> will be set to the | |
193 | length, in bytes, of that character. | |
194 | ||
195 | Allows 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 | |
203 | UV | |
204 | Perl_utf8n_to_uvchr(pTHX_ const U8 *s, STRLEN curlen, STRLEN *retlen, | |
205 | U32 flags) | |
206 | { | |
207 | const UV uv = Perl_utf8n_to_uvuni(aTHX_ s, curlen, retlen, flags); | |
208 | return UNI_TO_NATIVE(uv); | |
209 | } | |
210 | int | |
211 | Perl_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 | ||
219 | int | |
220 | Perl_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 | */ | |
234 | NV | |
235 | Perl_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 | |
245 | int | |
246 | perlsio_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 | |
271 | of | |
272 | * the translation mode of the fd in the Borland RTL (heavy | |
273 | * digging through their runtime sources reveal). User has to | |
274 | set | |
275 | * the mode explicitly for the stream (though they don't | |
276 | document | |
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 | ||
f2f0f092 NC |
307 | /* compatibility with versions <= 5.003. */ |
308 | void | |
309 | Perl_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. */ | |
315 | void | |
316 | Perl_gv_efullname(pTHX_ SV *sv, const GV *gv) | |
317 | { | |
318 | gv_efullname3(sv, gv, sv == (const SV*)gv ? "*" : ""); | |
319 | } | |
320 | ||
2674aeec NC |
321 | void |
322 | Perl_gv_fullname3(pTHX_ SV *sv, const GV *gv, const char *prefix) | |
323 | { | |
324 | gv_fullname4(sv, gv, prefix, TRUE); | |
325 | } | |
326 | ||
327 | void | |
328 | Perl_gv_efullname3(pTHX_ SV *sv, const GV *gv, const char *prefix) | |
329 | { | |
330 | gv_efullname4(sv, gv, prefix, TRUE); | |
331 | } | |
332 | ||
b966a812 SP |
333 | AV * |
334 | Perl_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 | ||
34d367cd SP |
355 | bool |
356 | Perl_do_open9(pTHX_ GV *gv, register const char *name, I32 len, int | |
357 | as_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 | ||
366 | int | |
367 | Perl_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 | ||
7ee2227d SP |
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 | */ |