Commit | Line | Data |
d6376244 |
1 | /* universal.c |
2 | * |
b5f8cc5c |
3 | * Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, |
fdf8c088 |
4 | * 2005, 2006, 2007 by Larry Wall and others |
d6376244 |
5 | * |
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. |
8 | * |
9 | */ |
10 | |
d31a8517 |
11 | /* |
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 |
15 | */ |
16 | |
166f8a29 |
17 | /* This file contains the code that implements the functions in Perl's |
18 | * UNIVERSAL package, such as UNIVERSAL->can(). |
19 | */ |
20 | |
6d4a7be2 |
21 | #include "EXTERN.h" |
864dbfa3 |
22 | #define PERL_IN_UNIVERSAL_C |
6d4a7be2 |
23 | #include "perl.h" |
6d4a7be2 |
24 | |
39f7a870 |
25 | #ifdef USE_PERLIO |
26 | #include "perliol.h" /* For the PERLIO_F_XXX */ |
27 | #endif |
28 | |
6d4a7be2 |
29 | /* |
30 | * Contributed by Graham Barr <Graham.Barr@tiuk.ti.com> |
31 | * The main guts of traverse_isa was actually copied from gv_fetchmeth |
32 | */ |
33 | |
a9ec700e |
34 | STATIC bool |
34692224 |
35 | S_isa_lookup(pTHX_ HV *stash, const char *name, const HV* const name_stash, |
301daebc |
36 | int len, int level) |
6d4a7be2 |
37 | { |
97aff369 |
38 | dVAR; |
6d4a7be2 |
39 | AV* av; |
40 | GV* gv; |
41 | GV** gvp; |
5c284bb0 |
42 | HV* hv = NULL; |
c445ea15 |
43 | SV* subgen = NULL; |
bfcb3514 |
44 | const char *hvname; |
6d4a7be2 |
45 | |
301daebc |
46 | /* A stash/class can go by many names (ie. User == main::User), so |
47 | we compare the stash itself just in case */ |
34692224 |
48 | if (name_stash && ((const HV *)stash == name_stash)) |
a9ec700e |
49 | return TRUE; |
6d4a7be2 |
50 | |
bfcb3514 |
51 | hvname = HvNAME_get(stash); |
52 | |
53 | if (strEQ(hvname, name)) |
a9ec700e |
54 | return TRUE; |
6d4a7be2 |
55 | |
a1d407e8 |
56 | if (strEQ(name, "UNIVERSAL")) |
a9ec700e |
57 | return TRUE; |
a1d407e8 |
58 | |
6d4a7be2 |
59 | if (level > 100) |
46e4b22b |
60 | Perl_croak(aTHX_ "Recursive inheritance detected in package '%s'", |
bfcb3514 |
61 | hvname); |
6d4a7be2 |
62 | |
017a3ce5 |
63 | gvp = (GV**)hv_fetchs(stash, "::ISA::CACHE::", FALSE); |
6d4a7be2 |
64 | |
9e0d86f8 |
65 | if (gvp && (gv = *gvp) && isGV_with_GP(gv) && (subgen = GvSV(gv)) |
46e4b22b |
66 | && (hv = GvHV(gv))) |
67 | { |
eb160463 |
68 | if (SvIV(subgen) == (IV)PL_sub_generation) { |
7452cf6a |
69 | SV** const svp = (SV**)hv_fetch(hv, name, len, FALSE); |
34692224 |
70 | if (svp) { |
71 | SV * const sv = *svp; |
17bcfd59 |
72 | #ifdef DEBUGGING |
34692224 |
73 | if (sv != &PL_sv_undef) |
74 | DEBUG_o( Perl_deb(aTHX_ "Using cached ISA %s for package %s\n", |
75 | name, hvname) ); |
17bcfd59 |
76 | #endif |
a9ec700e |
77 | return (sv == &PL_sv_yes); |
46e4b22b |
78 | } |
79 | } |
80 | else { |
81 | DEBUG_o( Perl_deb(aTHX_ "ISA Cache in package %s is stale\n", |
bfcb3514 |
82 | hvname) ); |
46e4b22b |
83 | hv_clear(hv); |
84 | sv_setiv(subgen, PL_sub_generation); |
85 | } |
6d4a7be2 |
86 | } |
87 | |
017a3ce5 |
88 | gvp = (GV**)hv_fetchs(stash, "ISA", FALSE); |
46e4b22b |
89 | |
9e0d86f8 |
90 | if (gvp && (gv = *gvp) && isGV_with_GP(gv) && (av = GvAV(gv))) { |
46e4b22b |
91 | if (!hv || !subgen) { |
017a3ce5 |
92 | gvp = (GV**)hv_fetchs(stash, "::ISA::CACHE::", TRUE); |
6d4a7be2 |
93 | |
94 | gv = *gvp; |
95 | |
96 | if (SvTYPE(gv) != SVt_PVGV) |
97 | gv_init(gv, stash, "::ISA::CACHE::", 14, TRUE); |
98 | |
46e4b22b |
99 | if (!hv) |
100 | hv = GvHVn(gv); |
101 | if (!subgen) { |
102 | subgen = newSViv(PL_sub_generation); |
103 | GvSV(gv) = subgen; |
104 | } |
6d4a7be2 |
105 | } |
46e4b22b |
106 | if (hv) { |
6d4a7be2 |
107 | SV** svp = AvARRAY(av); |
93965878 |
108 | /* NOTE: No support for tied ISA */ |
109 | I32 items = AvFILLp(av) + 1; |
6d4a7be2 |
110 | while (items--) { |
c4420975 |
111 | SV* const sv = *svp++; |
da51bb9b |
112 | HV* const basestash = gv_stashsv(sv, 0); |
6d4a7be2 |
113 | if (!basestash) { |
599cee73 |
114 | if (ckWARN(WARN_MISC)) |
9014280d |
115 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), |
bfcb3514 |
116 | "Can't locate package %"SVf" for @%s::ISA", |
be2597df |
117 | SVfARG(sv), hvname); |
6d4a7be2 |
118 | continue; |
119 | } |
a9ec700e |
120 | if (isa_lookup(basestash, name, name_stash, len, level + 1)) { |
3280af22 |
121 | (void)hv_store(hv,name,len,&PL_sv_yes,0); |
a9ec700e |
122 | return TRUE; |
6d4a7be2 |
123 | } |
124 | } |
3280af22 |
125 | (void)hv_store(hv,name,len,&PL_sv_no,0); |
6d4a7be2 |
126 | } |
127 | } |
a9ec700e |
128 | return FALSE; |
6d4a7be2 |
129 | } |
130 | |
954c1994 |
131 | /* |
ccfc67b7 |
132 | =head1 SV Manipulation Functions |
133 | |
954c1994 |
134 | =for apidoc sv_derived_from |
135 | |
6885da0e |
136 | Returns a boolean indicating whether the SV is derived from the specified class |
137 | I<at the C level>. To check derivation at the Perl level, call C<isa()> as a |
138 | normal Perl method. |
954c1994 |
139 | |
140 | =cut |
141 | */ |
142 | |
55497cff |
143 | bool |
864dbfa3 |
144 | Perl_sv_derived_from(pTHX_ SV *sv, const char *name) |
55497cff |
145 | { |
97aff369 |
146 | dVAR; |
0b6f4f5c |
147 | HV *stash; |
46e4b22b |
148 | |
5b295bef |
149 | SvGETMAGIC(sv); |
55497cff |
150 | |
151 | if (SvROK(sv)) { |
0b6f4f5c |
152 | const char *type; |
55497cff |
153 | sv = SvRV(sv); |
154 | type = sv_reftype(sv,0); |
0b6f4f5c |
155 | if (type && strEQ(type,name)) |
156 | return TRUE; |
157 | stash = SvOBJECT(sv) ? SvSTASH(sv) : NULL; |
55497cff |
158 | } |
159 | else { |
da51bb9b |
160 | stash = gv_stashsv(sv, 0); |
55497cff |
161 | } |
46e4b22b |
162 | |
0b6f4f5c |
163 | if (stash) { |
da51bb9b |
164 | HV * const name_stash = gv_stashpv(name, 0); |
a9ec700e |
165 | return isa_lookup(stash, name, name_stash, strlen(name), 0); |
0b6f4f5c |
166 | } |
167 | else |
168 | return FALSE; |
301daebc |
169 | |
55497cff |
170 | } |
171 | |
cbc021f9 |
172 | /* |
173 | =for apidoc sv_does |
174 | |
175 | Returns a boolean indicating whether the SV performs a specific, named role. |
176 | The SV can be a Perl object or the name of a Perl class. |
177 | |
178 | =cut |
179 | */ |
180 | |
1b026014 |
181 | #include "XSUB.h" |
182 | |
cbc021f9 |
183 | bool |
184 | Perl_sv_does(pTHX_ SV *sv, const char *name) |
185 | { |
186 | const char *classname; |
187 | bool does_it; |
188 | |
189 | dSP; |
190 | ENTER; |
191 | SAVETMPS; |
192 | |
193 | SvGETMAGIC(sv); |
194 | |
195 | if (!SvOK(sv) || !(SvROK(sv) || (SvPOK(sv) && SvCUR(sv)) |
196 | || (SvGMAGICAL(sv) && SvPOKp(sv) && SvCUR(sv)))) |
197 | return FALSE; |
198 | |
199 | if (sv_isobject(sv)) { |
200 | classname = sv_reftype(SvRV(sv),TRUE); |
201 | } else { |
202 | classname = SvPV(sv,PL_na); |
203 | } |
204 | |
205 | if (strEQ(name,classname)) |
206 | return TRUE; |
207 | |
208 | PUSHMARK(SP); |
209 | XPUSHs(sv); |
210 | XPUSHs(sv_2mortal(newSVpv(name, 0))); |
211 | PUTBACK; |
212 | |
213 | call_method("isa", G_SCALAR); |
214 | SPAGAIN; |
215 | |
216 | does_it = SvTRUE( TOPs ); |
217 | FREETMPS; |
218 | LEAVE; |
219 | |
220 | return does_it; |
221 | } |
222 | |
80305961 |
223 | regexp * |
224 | Perl_get_re_arg( pTHX_ SV *sv, U32 flags, MAGIC **mgp) { |
225 | MAGIC *mg; |
226 | if (sv) { |
227 | if (SvMAGICAL(sv)) |
228 | mg_get(sv); |
229 | if (SvROK(sv) && |
230 | (sv = (SV*)SvRV(sv)) && /* assign deliberate */ |
231 | SvTYPE(sv) == SVt_PVMG && |
232 | (mg = mg_find(sv, PERL_MAGIC_qr))) /* assign deliberate */ |
233 | { |
234 | if (mgp) *mgp = mg; |
235 | return (regexp *)mg->mg_obj; |
236 | } |
237 | } |
238 | if (mgp) *mgp = NULL; |
239 | return ((flags && PL_curpm) ? PM_GETRE(PL_curpm) : NULL); |
240 | } |
241 | |
242 | |
27da23d5 |
243 | PERL_XS_EXPORT_C void XS_UNIVERSAL_isa(pTHX_ CV *cv); |
244 | PERL_XS_EXPORT_C void XS_UNIVERSAL_can(pTHX_ CV *cv); |
cbc021f9 |
245 | PERL_XS_EXPORT_C void XS_UNIVERSAL_DOES(pTHX_ CV *cv); |
27da23d5 |
246 | PERL_XS_EXPORT_C void XS_UNIVERSAL_VERSION(pTHX_ CV *cv); |
439cb1c4 |
247 | XS(XS_version_new); |
248 | XS(XS_version_stringify); |
249 | XS(XS_version_numify); |
9137345a |
250 | XS(XS_version_normal); |
439cb1c4 |
251 | XS(XS_version_vcmp); |
252 | XS(XS_version_boolean); |
2dfd8427 |
253 | #ifdef HASATTRIBUTE_NORETURN |
254 | XS(XS_version_noop) __attribute__noreturn__; |
255 | #else |
439cb1c4 |
256 | XS(XS_version_noop); |
2dfd8427 |
257 | #endif |
c8d69e4a |
258 | XS(XS_version_is_alpha); |
137d6fc0 |
259 | XS(XS_version_qv); |
8800c35a |
260 | XS(XS_utf8_is_utf8); |
1b026014 |
261 | XS(XS_utf8_valid); |
262 | XS(XS_utf8_encode); |
263 | XS(XS_utf8_decode); |
264 | XS(XS_utf8_upgrade); |
265 | XS(XS_utf8_downgrade); |
266 | XS(XS_utf8_unicode_to_native); |
267 | XS(XS_utf8_native_to_unicode); |
29569577 |
268 | XS(XS_Internals_SvREADONLY); |
269 | XS(XS_Internals_SvREFCNT); |
f044d0d1 |
270 | XS(XS_Internals_hv_clear_placehold); |
39f7a870 |
271 | XS(XS_PerlIO_get_layers); |
39cff0d9 |
272 | XS(XS_Regexp_DESTROY); |
9a7034eb |
273 | XS(XS_Internals_hash_seed); |
008fb0c0 |
274 | XS(XS_Internals_rehash_seed); |
05619474 |
275 | XS(XS_Internals_HvREHASH); |
e1234d8e |
276 | XS(XS_Internals_inc_sub_generation); |
80305961 |
277 | XS(XS_re_is_regexp); |
278 | XS(XS_re_regname); |
279 | XS(XS_re_regnames); |
280 | XS(XS_re_regnames_iterinit); |
281 | XS(XS_re_regnames_iternext); |
282 | XS(XS_re_regnames_count); |
0cb96387 |
283 | |
284 | void |
285 | Perl_boot_core_UNIVERSAL(pTHX) |
286 | { |
97aff369 |
287 | dVAR; |
157e3fc8 |
288 | static const char file[] = __FILE__; |
0cb96387 |
289 | |
290 | newXS("UNIVERSAL::isa", XS_UNIVERSAL_isa, file); |
291 | newXS("UNIVERSAL::can", XS_UNIVERSAL_can, file); |
cbc021f9 |
292 | newXS("UNIVERSAL::DOES", XS_UNIVERSAL_DOES, file); |
0cb96387 |
293 | newXS("UNIVERSAL::VERSION", XS_UNIVERSAL_VERSION, file); |
439cb1c4 |
294 | { |
ad63d80f |
295 | /* register the overloading (type 'A') magic */ |
296 | PL_amagic_generation++; |
439cb1c4 |
297 | /* Make it findable via fetchmethod */ |
be2ebcad |
298 | newXS("version::()", XS_version_noop, file); |
439cb1c4 |
299 | newXS("version::new", XS_version_new, file); |
300 | newXS("version::(\"\"", XS_version_stringify, file); |
301 | newXS("version::stringify", XS_version_stringify, file); |
302 | newXS("version::(0+", XS_version_numify, file); |
303 | newXS("version::numify", XS_version_numify, file); |
9137345a |
304 | newXS("version::normal", XS_version_normal, file); |
439cb1c4 |
305 | newXS("version::(cmp", XS_version_vcmp, file); |
306 | newXS("version::(<=>", XS_version_vcmp, file); |
307 | newXS("version::vcmp", XS_version_vcmp, file); |
308 | newXS("version::(bool", XS_version_boolean, file); |
309 | newXS("version::boolean", XS_version_boolean, file); |
310 | newXS("version::(nomethod", XS_version_noop, file); |
311 | newXS("version::noop", XS_version_noop, file); |
c8d69e4a |
312 | newXS("version::is_alpha", XS_version_is_alpha, file); |
137d6fc0 |
313 | newXS("version::qv", XS_version_qv, file); |
439cb1c4 |
314 | } |
8800c35a |
315 | newXS("utf8::is_utf8", XS_utf8_is_utf8, file); |
1b026014 |
316 | newXS("utf8::valid", XS_utf8_valid, file); |
317 | newXS("utf8::encode", XS_utf8_encode, file); |
318 | newXS("utf8::decode", XS_utf8_decode, file); |
319 | newXS("utf8::upgrade", XS_utf8_upgrade, file); |
320 | newXS("utf8::downgrade", XS_utf8_downgrade, file); |
321 | newXS("utf8::native_to_unicode", XS_utf8_native_to_unicode, file); |
322 | newXS("utf8::unicode_to_native", XS_utf8_unicode_to_native, file); |
29569577 |
323 | newXSproto("Internals::SvREADONLY",XS_Internals_SvREADONLY, file, "\\[$%@];$"); |
324 | newXSproto("Internals::SvREFCNT",XS_Internals_SvREFCNT, file, "\\[$%@];$"); |
dfd4ef2f |
325 | newXSproto("Internals::hv_clear_placeholders", |
f044d0d1 |
326 | XS_Internals_hv_clear_placehold, file, "\\%"); |
9d569fce |
327 | newXSproto("PerlIO::get_layers", |
328 | XS_PerlIO_get_layers, file, "*;@"); |
39cff0d9 |
329 | newXS("Regexp::DESTROY", XS_Regexp_DESTROY, file); |
9a7034eb |
330 | newXSproto("Internals::hash_seed",XS_Internals_hash_seed, file, ""); |
008fb0c0 |
331 | newXSproto("Internals::rehash_seed",XS_Internals_rehash_seed, file, ""); |
05619474 |
332 | newXSproto("Internals::HvREHASH", XS_Internals_HvREHASH, file, "\\%"); |
e1234d8e |
333 | newXSproto("Internals::inc_sub_generation",XS_Internals_inc_sub_generation, |
334 | file, ""); |
80305961 |
335 | newXSproto("re::is_regexp", XS_re_is_regexp, file, "$"); |
336 | newXSproto("re::regname", XS_re_regname, file, ";$$$"); |
337 | newXSproto("re::regnames", XS_re_regnames, file, ";$$"); |
338 | newXSproto("re::regnames_iterinit", XS_re_regnames_iterinit, file, ";$"); |
339 | newXSproto("re::regnames_iternext", XS_re_regnames_iternext, file, ";$$"); |
340 | newXSproto("re::regnames_count", XS_re_regnames_count, file, ";$"); |
0cb96387 |
341 | } |
342 | |
55497cff |
343 | |
6d4a7be2 |
344 | XS(XS_UNIVERSAL_isa) |
345 | { |
97aff369 |
346 | dVAR; |
6d4a7be2 |
347 | dXSARGS; |
58c0efa5 |
348 | PERL_UNUSED_ARG(cv); |
6d4a7be2 |
349 | |
350 | if (items != 2) |
cea2e8a9 |
351 | Perl_croak(aTHX_ "Usage: UNIVERSAL::isa(reference, kind)"); |
c4420975 |
352 | else { |
353 | SV * const sv = ST(0); |
354 | const char *name; |
6d4a7be2 |
355 | |
c4420975 |
356 | SvGETMAGIC(sv); |
d3f7f2b2 |
357 | |
c4420975 |
358 | if (!SvOK(sv) || !(SvROK(sv) || (SvPOK(sv) && SvCUR(sv)) |
359 | || (SvGMAGICAL(sv) && SvPOKp(sv) && SvCUR(sv)))) |
360 | XSRETURN_UNDEF; |
f8f70380 |
361 | |
c4420975 |
362 | name = SvPV_nolen_const(ST(1)); |
6d4a7be2 |
363 | |
c4420975 |
364 | ST(0) = boolSV(sv_derived_from(sv, name)); |
365 | XSRETURN(1); |
366 | } |
6d4a7be2 |
367 | } |
368 | |
6d4a7be2 |
369 | XS(XS_UNIVERSAL_can) |
370 | { |
97aff369 |
371 | dVAR; |
6d4a7be2 |
372 | dXSARGS; |
373 | SV *sv; |
6867be6d |
374 | const char *name; |
6d4a7be2 |
375 | SV *rv; |
6f08146e |
376 | HV *pkg = NULL; |
58c0efa5 |
377 | PERL_UNUSED_ARG(cv); |
6d4a7be2 |
378 | |
379 | if (items != 2) |
cea2e8a9 |
380 | Perl_croak(aTHX_ "Usage: UNIVERSAL::can(object-ref, method)"); |
6d4a7be2 |
381 | |
382 | sv = ST(0); |
f8f70380 |
383 | |
5b295bef |
384 | SvGETMAGIC(sv); |
d3f7f2b2 |
385 | |
253ecd6d |
386 | if (!SvOK(sv) || !(SvROK(sv) || (SvPOK(sv) && SvCUR(sv)) |
387 | || (SvGMAGICAL(sv) && SvPOKp(sv) && SvCUR(sv)))) |
f8f70380 |
388 | XSRETURN_UNDEF; |
389 | |
0510663f |
390 | name = SvPV_nolen_const(ST(1)); |
3280af22 |
391 | rv = &PL_sv_undef; |
6d4a7be2 |
392 | |
46e4b22b |
393 | if (SvROK(sv)) { |
6f08146e |
394 | sv = (SV*)SvRV(sv); |
46e4b22b |
395 | if (SvOBJECT(sv)) |
6f08146e |
396 | pkg = SvSTASH(sv); |
397 | } |
398 | else { |
da51bb9b |
399 | pkg = gv_stashsv(sv, 0); |
6f08146e |
400 | } |
401 | |
402 | if (pkg) { |
c4420975 |
403 | GV * const gv = gv_fetchmethod_autoload(pkg, name, FALSE); |
dc848c6f |
404 | if (gv && isGV(gv)) |
405 | rv = sv_2mortal(newRV((SV*)GvCV(gv))); |
6d4a7be2 |
406 | } |
407 | |
408 | ST(0) = rv; |
409 | XSRETURN(1); |
410 | } |
411 | |
cbc021f9 |
412 | XS(XS_UNIVERSAL_DOES) |
413 | { |
414 | dVAR; |
415 | dXSARGS; |
58c0efa5 |
416 | PERL_UNUSED_ARG(cv); |
cbc021f9 |
417 | |
418 | if (items != 2) |
419 | Perl_croak(aTHX_ "Usage: invocant->does(kind)"); |
420 | else { |
421 | SV * const sv = ST(0); |
422 | const char *name; |
423 | |
424 | name = SvPV_nolen_const(ST(1)); |
425 | if (sv_does( sv, name )) |
426 | XSRETURN_YES; |
427 | |
428 | XSRETURN_NO; |
429 | } |
430 | } |
431 | |
6d4a7be2 |
432 | XS(XS_UNIVERSAL_VERSION) |
433 | { |
97aff369 |
434 | dVAR; |
6d4a7be2 |
435 | dXSARGS; |
436 | HV *pkg; |
437 | GV **gvp; |
438 | GV *gv; |
439 | SV *sv; |
e1ec3a88 |
440 | const char *undef; |
58c0efa5 |
441 | PERL_UNUSED_ARG(cv); |
6d4a7be2 |
442 | |
1571675a |
443 | if (SvROK(ST(0))) { |
6d4a7be2 |
444 | sv = (SV*)SvRV(ST(0)); |
1571675a |
445 | if (!SvOBJECT(sv)) |
cea2e8a9 |
446 | Perl_croak(aTHX_ "Cannot find version of an unblessed reference"); |
6d4a7be2 |
447 | pkg = SvSTASH(sv); |
448 | } |
449 | else { |
da51bb9b |
450 | pkg = gv_stashsv(ST(0), 0); |
6d4a7be2 |
451 | } |
452 | |
4608196e |
453 | gvp = pkg ? (GV**)hv_fetchs(pkg, "VERSION", FALSE) : NULL; |
6d4a7be2 |
454 | |
0008872a |
455 | if (gvp && isGV(gv = *gvp) && (sv = GvSV(gv)) && SvOK(sv)) { |
c4420975 |
456 | SV * const nsv = sv_newmortal(); |
6d4a7be2 |
457 | sv_setsv(nsv, sv); |
458 | sv = nsv; |
137d6fc0 |
459 | if ( !sv_derived_from(sv, "version")) |
460 | upg_version(sv); |
c445ea15 |
461 | undef = NULL; |
6d4a7be2 |
462 | } |
463 | else { |
3280af22 |
464 | sv = (SV*)&PL_sv_undef; |
6d4a7be2 |
465 | undef = "(undef)"; |
466 | } |
467 | |
1571675a |
468 | if (items > 1) { |
1571675a |
469 | SV *req = ST(1); |
470 | |
62658f4d |
471 | if (undef) { |
bfcb3514 |
472 | if (pkg) { |
c4420975 |
473 | const char * const name = HvNAME_get(pkg); |
a3b680e6 |
474 | Perl_croak(aTHX_ |
bfcb3514 |
475 | "%s does not define $%s::VERSION--version check failed", |
476 | name, name); |
477 | } else { |
a3b680e6 |
478 | Perl_croak(aTHX_ |
479 | "%s defines neither package nor VERSION--version check failed", |
0510663f |
480 | SvPVx_nolen_const(ST(0)) ); |
62658f4d |
481 | } |
482 | } |
ad63d80f |
483 | |
137d6fc0 |
484 | if ( !sv_derived_from(req, "version")) { |
485 | /* req may very well be R/O, so create a new object */ |
c4420975 |
486 | SV * const nsv = sv_newmortal(); |
137d6fc0 |
487 | sv_setsv(nsv, req); |
488 | req = nsv; |
489 | upg_version(req); |
490 | } |
1571675a |
491 | |
137d6fc0 |
492 | if ( vcmp( req, sv ) > 0 ) |
b9381830 |
493 | Perl_croak(aTHX_ "%s version %"SVf" (%"SVf") required--" |
95b63a38 |
494 | "this is only version %"SVf" (%"SVf")", HvNAME_get(pkg), |
be2597df |
495 | SVfARG(vnumify(req)), |
496 | SVfARG(vnormal(req)), |
497 | SVfARG(vnumify(sv)), |
498 | SVfARG(vnormal(sv))); |
2d8e6c8d |
499 | } |
6d4a7be2 |
500 | |
2b140d5b |
501 | if ( SvOK(sv) && sv_derived_from(sv, "version") ) { |
b38a9dc5 |
502 | ST(0) = vnumify(sv); |
13f8f398 |
503 | } else { |
504 | ST(0) = sv; |
b38a9dc5 |
505 | } |
6d4a7be2 |
506 | |
507 | XSRETURN(1); |
508 | } |
509 | |
439cb1c4 |
510 | XS(XS_version_new) |
511 | { |
97aff369 |
512 | dVAR; |
439cb1c4 |
513 | dXSARGS; |
58c0efa5 |
514 | PERL_UNUSED_ARG(cv); |
129318bd |
515 | if (items > 3) |
439cb1c4 |
516 | Perl_croak(aTHX_ "Usage: version::new(class, version)"); |
517 | SP -= items; |
518 | { |
137d6fc0 |
519 | SV *vs = ST(1); |
520 | SV *rv; |
c4420975 |
521 | const char * const classname = |
522 | sv_isobject(ST(0)) /* get the class if called as an object method */ |
523 | ? HvNAME(SvSTASH(SvRV(ST(0)))) |
524 | : (char *)SvPV_nolen(ST(0)); |
9137345a |
525 | |
92dcf8ce |
526 | if ( items == 1 || vs == &PL_sv_undef ) { /* no param or explicit undef */ |
527 | /* create empty object */ |
528 | vs = sv_newmortal(); |
529 | sv_setpvn(vs,"",0); |
9137345a |
530 | } |
531 | else if ( items == 3 ) { |
532 | vs = sv_newmortal(); |
cfd0369c |
533 | Perl_sv_setpvf(aTHX_ vs,"v%s",SvPV_nolen_const(ST(2))); |
129318bd |
534 | } |
439cb1c4 |
535 | |
137d6fc0 |
536 | rv = new_version(vs); |
0723351e |
537 | if ( strcmp(classname,"version") != 0 ) /* inherited new() */ |
da51bb9b |
538 | sv_bless(rv, gv_stashpv(classname, GV_ADD)); |
137d6fc0 |
539 | |
540 | PUSHs(sv_2mortal(rv)); |
439cb1c4 |
541 | PUTBACK; |
542 | return; |
543 | } |
544 | } |
545 | |
546 | XS(XS_version_stringify) |
547 | { |
97aff369 |
548 | dVAR; |
41be1fbd |
549 | dXSARGS; |
58c0efa5 |
550 | PERL_UNUSED_ARG(cv); |
41be1fbd |
551 | if (items < 1) |
552 | Perl_croak(aTHX_ "Usage: version::stringify(lobj, ...)"); |
553 | SP -= items; |
554 | { |
7452cf6a |
555 | SV * lobj; |
41be1fbd |
556 | |
557 | if (sv_derived_from(ST(0), "version")) { |
9137345a |
558 | lobj = SvRV(ST(0)); |
41be1fbd |
559 | } |
560 | else |
561 | Perl_croak(aTHX_ "lobj is not of type version"); |
562 | |
137d6fc0 |
563 | PUSHs(sv_2mortal(vstringify(lobj))); |
41be1fbd |
564 | |
565 | PUTBACK; |
566 | return; |
567 | } |
439cb1c4 |
568 | } |
569 | |
570 | XS(XS_version_numify) |
571 | { |
97aff369 |
572 | dVAR; |
41be1fbd |
573 | dXSARGS; |
58c0efa5 |
574 | PERL_UNUSED_ARG(cv); |
41be1fbd |
575 | if (items < 1) |
576 | Perl_croak(aTHX_ "Usage: version::numify(lobj, ...)"); |
577 | SP -= items; |
578 | { |
7452cf6a |
579 | SV * lobj; |
41be1fbd |
580 | |
581 | if (sv_derived_from(ST(0), "version")) { |
9137345a |
582 | lobj = SvRV(ST(0)); |
41be1fbd |
583 | } |
584 | else |
585 | Perl_croak(aTHX_ "lobj is not of type version"); |
586 | |
137d6fc0 |
587 | PUSHs(sv_2mortal(vnumify(lobj))); |
41be1fbd |
588 | |
589 | PUTBACK; |
590 | return; |
591 | } |
439cb1c4 |
592 | } |
593 | |
9137345a |
594 | XS(XS_version_normal) |
595 | { |
97aff369 |
596 | dVAR; |
9137345a |
597 | dXSARGS; |
58c0efa5 |
598 | PERL_UNUSED_ARG(cv); |
9137345a |
599 | if (items < 1) |
600 | Perl_croak(aTHX_ "Usage: version::normal(lobj, ...)"); |
601 | SP -= items; |
602 | { |
7452cf6a |
603 | SV * lobj; |
9137345a |
604 | |
605 | if (sv_derived_from(ST(0), "version")) { |
606 | lobj = SvRV(ST(0)); |
607 | } |
608 | else |
609 | Perl_croak(aTHX_ "lobj is not of type version"); |
610 | |
611 | PUSHs(sv_2mortal(vnormal(lobj))); |
612 | |
613 | PUTBACK; |
614 | return; |
615 | } |
616 | } |
617 | |
439cb1c4 |
618 | XS(XS_version_vcmp) |
619 | { |
97aff369 |
620 | dVAR; |
41be1fbd |
621 | dXSARGS; |
58c0efa5 |
622 | PERL_UNUSED_ARG(cv); |
41be1fbd |
623 | if (items < 1) |
624 | Perl_croak(aTHX_ "Usage: version::vcmp(lobj, ...)"); |
625 | SP -= items; |
626 | { |
7452cf6a |
627 | SV * lobj; |
41be1fbd |
628 | |
629 | if (sv_derived_from(ST(0), "version")) { |
9137345a |
630 | lobj = SvRV(ST(0)); |
41be1fbd |
631 | } |
632 | else |
633 | Perl_croak(aTHX_ "lobj is not of type version"); |
634 | |
635 | { |
636 | SV *rs; |
637 | SV *rvs; |
638 | SV * robj = ST(1); |
7452cf6a |
639 | const IV swap = (IV)SvIV(ST(2)); |
41be1fbd |
640 | |
641 | if ( ! sv_derived_from(robj, "version") ) |
642 | { |
643 | robj = new_version(robj); |
644 | } |
645 | rvs = SvRV(robj); |
646 | |
647 | if ( swap ) |
648 | { |
649 | rs = newSViv(vcmp(rvs,lobj)); |
650 | } |
651 | else |
652 | { |
653 | rs = newSViv(vcmp(lobj,rvs)); |
654 | } |
655 | |
137d6fc0 |
656 | PUSHs(sv_2mortal(rs)); |
41be1fbd |
657 | } |
658 | |
659 | PUTBACK; |
660 | return; |
661 | } |
439cb1c4 |
662 | } |
663 | |
664 | XS(XS_version_boolean) |
665 | { |
97aff369 |
666 | dVAR; |
667 | dXSARGS; |
58c0efa5 |
668 | PERL_UNUSED_ARG(cv); |
97aff369 |
669 | if (items < 1) |
670 | Perl_croak(aTHX_ "Usage: version::boolean(lobj, ...)"); |
671 | SP -= items; |
c4420975 |
672 | if (sv_derived_from(ST(0), "version")) { |
673 | SV * const lobj = SvRV(ST(0)); |
396482e1 |
674 | SV * const rs = newSViv( vcmp(lobj,new_version(newSVpvs("0"))) ); |
c4420975 |
675 | PUSHs(sv_2mortal(rs)); |
676 | PUTBACK; |
677 | return; |
678 | } |
679 | else |
680 | Perl_croak(aTHX_ "lobj is not of type version"); |
439cb1c4 |
681 | } |
682 | |
683 | XS(XS_version_noop) |
684 | { |
97aff369 |
685 | dVAR; |
2dfd8427 |
686 | dXSARGS; |
58c0efa5 |
687 | PERL_UNUSED_ARG(cv); |
2dfd8427 |
688 | if (items < 1) |
689 | Perl_croak(aTHX_ "Usage: version::noop(lobj, ...)"); |
690 | if (sv_derived_from(ST(0), "version")) |
691 | Perl_croak(aTHX_ "operation not supported with version object"); |
692 | else |
693 | Perl_croak(aTHX_ "lobj is not of type version"); |
694 | #ifndef HASATTRIBUTE_NORETURN |
695 | XSRETURN_EMPTY; |
696 | #endif |
439cb1c4 |
697 | } |
698 | |
c8d69e4a |
699 | XS(XS_version_is_alpha) |
700 | { |
97aff369 |
701 | dVAR; |
c8d69e4a |
702 | dXSARGS; |
58c0efa5 |
703 | PERL_UNUSED_ARG(cv); |
c8d69e4a |
704 | if (items != 1) |
705 | Perl_croak(aTHX_ "Usage: version::is_alpha(lobj)"); |
706 | SP -= items; |
c4420975 |
707 | if (sv_derived_from(ST(0), "version")) { |
708 | SV * const lobj = ST(0); |
709 | if ( hv_exists((HV*)SvRV(lobj), "alpha", 5 ) ) |
710 | XSRETURN_YES; |
711 | else |
712 | XSRETURN_NO; |
c8d69e4a |
713 | PUTBACK; |
714 | return; |
715 | } |
c4420975 |
716 | else |
717 | Perl_croak(aTHX_ "lobj is not of type version"); |
c8d69e4a |
718 | } |
719 | |
137d6fc0 |
720 | XS(XS_version_qv) |
721 | { |
97aff369 |
722 | dVAR; |
137d6fc0 |
723 | dXSARGS; |
58c0efa5 |
724 | PERL_UNUSED_ARG(cv); |
137d6fc0 |
725 | if (items != 1) |
726 | Perl_croak(aTHX_ "Usage: version::qv(ver)"); |
727 | SP -= items; |
728 | { |
729 | SV * ver = ST(0); |
c4420975 |
730 | if ( !SvVOK(ver) ) { /* only need to do with if not already v-string */ |
731 | SV * const vs = sv_newmortal(); |
137d6fc0 |
732 | char *version; |
733 | if ( SvNOK(ver) ) /* may get too much accuracy */ |
734 | { |
735 | char tbuf[64]; |
b5b5a8f0 |
736 | #ifdef USE_LOCALE_NUMERIC |
737 | char *loc = setlocale(LC_NUMERIC, "C"); |
738 | #endif |
63e3af20 |
739 | STRLEN len = my_snprintf(tbuf, sizeof(tbuf), "%.9"NVgf, SvNVX(ver)); |
b5b5a8f0 |
740 | #ifdef USE_LOCALE_NUMERIC |
741 | setlocale(LC_NUMERIC, loc); |
742 | #endif |
63e3af20 |
743 | while (tbuf[len-1] == '0' && len > 0) len--; |
86c11942 |
744 | version = savepvn(tbuf, len); |
137d6fc0 |
745 | } |
746 | else |
747 | { |
2e0de35c |
748 | version = savesvpv(ver); |
137d6fc0 |
749 | } |
750 | (void)scan_version(version,vs,TRUE); |
751 | Safefree(version); |
752 | |
753 | PUSHs(vs); |
754 | } |
755 | else |
756 | { |
757 | PUSHs(sv_2mortal(new_version(ver))); |
758 | } |
759 | |
760 | PUTBACK; |
761 | return; |
762 | } |
763 | } |
764 | |
8800c35a |
765 | XS(XS_utf8_is_utf8) |
766 | { |
97aff369 |
767 | dVAR; |
41be1fbd |
768 | dXSARGS; |
58c0efa5 |
769 | PERL_UNUSED_ARG(cv); |
41be1fbd |
770 | if (items != 1) |
771 | Perl_croak(aTHX_ "Usage: utf8::is_utf8(sv)"); |
c4420975 |
772 | else { |
773 | const SV * const sv = ST(0); |
774 | if (SvUTF8(sv)) |
775 | XSRETURN_YES; |
776 | else |
777 | XSRETURN_NO; |
41be1fbd |
778 | } |
779 | XSRETURN_EMPTY; |
8800c35a |
780 | } |
781 | |
1b026014 |
782 | XS(XS_utf8_valid) |
783 | { |
97aff369 |
784 | dVAR; |
41be1fbd |
785 | dXSARGS; |
58c0efa5 |
786 | PERL_UNUSED_ARG(cv); |
41be1fbd |
787 | if (items != 1) |
788 | Perl_croak(aTHX_ "Usage: utf8::valid(sv)"); |
c4420975 |
789 | else { |
790 | SV * const sv = ST(0); |
791 | STRLEN len; |
792 | const char * const s = SvPV_const(sv,len); |
793 | if (!SvUTF8(sv) || is_utf8_string((const U8*)s,len)) |
794 | XSRETURN_YES; |
795 | else |
796 | XSRETURN_NO; |
797 | } |
41be1fbd |
798 | XSRETURN_EMPTY; |
1b026014 |
799 | } |
800 | |
801 | XS(XS_utf8_encode) |
802 | { |
97aff369 |
803 | dVAR; |
1b026014 |
804 | dXSARGS; |
58c0efa5 |
805 | PERL_UNUSED_ARG(cv); |
1b026014 |
806 | if (items != 1) |
807 | Perl_croak(aTHX_ "Usage: utf8::encode(sv)"); |
c4420975 |
808 | sv_utf8_encode(ST(0)); |
1b026014 |
809 | XSRETURN_EMPTY; |
810 | } |
811 | |
812 | XS(XS_utf8_decode) |
813 | { |
97aff369 |
814 | dVAR; |
1b026014 |
815 | dXSARGS; |
58c0efa5 |
816 | PERL_UNUSED_ARG(cv); |
1b026014 |
817 | if (items != 1) |
818 | Perl_croak(aTHX_ "Usage: utf8::decode(sv)"); |
c4420975 |
819 | else { |
820 | SV * const sv = ST(0); |
6867be6d |
821 | const bool RETVAL = sv_utf8_decode(sv); |
1b026014 |
822 | ST(0) = boolSV(RETVAL); |
823 | sv_2mortal(ST(0)); |
824 | } |
825 | XSRETURN(1); |
826 | } |
827 | |
828 | XS(XS_utf8_upgrade) |
829 | { |
97aff369 |
830 | dVAR; |
1b026014 |
831 | dXSARGS; |
58c0efa5 |
832 | PERL_UNUSED_ARG(cv); |
1b026014 |
833 | if (items != 1) |
834 | Perl_croak(aTHX_ "Usage: utf8::upgrade(sv)"); |
c4420975 |
835 | else { |
836 | SV * const sv = ST(0); |
1b026014 |
837 | STRLEN RETVAL; |
838 | dXSTARG; |
839 | |
840 | RETVAL = sv_utf8_upgrade(sv); |
841 | XSprePUSH; PUSHi((IV)RETVAL); |
842 | } |
843 | XSRETURN(1); |
844 | } |
845 | |
846 | XS(XS_utf8_downgrade) |
847 | { |
97aff369 |
848 | dVAR; |
1b026014 |
849 | dXSARGS; |
58c0efa5 |
850 | PERL_UNUSED_ARG(cv); |
1b026014 |
851 | if (items < 1 || items > 2) |
852 | Perl_croak(aTHX_ "Usage: utf8::downgrade(sv, failok=0)"); |
c4420975 |
853 | else { |
854 | SV * const sv = ST(0); |
6867be6d |
855 | const bool failok = (items < 2) ? 0 : (int)SvIV(ST(1)); |
856 | const bool RETVAL = sv_utf8_downgrade(sv, failok); |
1b026014 |
857 | |
1b026014 |
858 | ST(0) = boolSV(RETVAL); |
859 | sv_2mortal(ST(0)); |
860 | } |
861 | XSRETURN(1); |
862 | } |
863 | |
864 | XS(XS_utf8_native_to_unicode) |
865 | { |
97aff369 |
866 | dVAR; |
1b026014 |
867 | dXSARGS; |
6867be6d |
868 | const UV uv = SvUV(ST(0)); |
58c0efa5 |
869 | PERL_UNUSED_ARG(cv); |
b7953727 |
870 | |
871 | if (items > 1) |
872 | Perl_croak(aTHX_ "Usage: utf8::native_to_unicode(sv)"); |
873 | |
1b026014 |
874 | ST(0) = sv_2mortal(newSViv(NATIVE_TO_UNI(uv))); |
875 | XSRETURN(1); |
876 | } |
877 | |
878 | XS(XS_utf8_unicode_to_native) |
879 | { |
97aff369 |
880 | dVAR; |
1b026014 |
881 | dXSARGS; |
6867be6d |
882 | const UV uv = SvUV(ST(0)); |
58c0efa5 |
883 | PERL_UNUSED_ARG(cv); |
b7953727 |
884 | |
885 | if (items > 1) |
886 | Perl_croak(aTHX_ "Usage: utf8::unicode_to_native(sv)"); |
887 | |
1b026014 |
888 | ST(0) = sv_2mortal(newSViv(UNI_TO_NATIVE(uv))); |
889 | XSRETURN(1); |
890 | } |
891 | |
14a976d6 |
892 | XS(XS_Internals_SvREADONLY) /* This is dangerous stuff. */ |
29569577 |
893 | { |
97aff369 |
894 | dVAR; |
29569577 |
895 | dXSARGS; |
c4420975 |
896 | SV * const sv = SvRV(ST(0)); |
58c0efa5 |
897 | PERL_UNUSED_ARG(cv); |
6867be6d |
898 | |
29569577 |
899 | if (items == 1) { |
900 | if (SvREADONLY(sv)) |
901 | XSRETURN_YES; |
902 | else |
903 | XSRETURN_NO; |
904 | } |
905 | else if (items == 2) { |
906 | if (SvTRUE(ST(1))) { |
907 | SvREADONLY_on(sv); |
908 | XSRETURN_YES; |
909 | } |
910 | else { |
14a976d6 |
911 | /* I hope you really know what you are doing. */ |
29569577 |
912 | SvREADONLY_off(sv); |
913 | XSRETURN_NO; |
914 | } |
915 | } |
14a976d6 |
916 | XSRETURN_UNDEF; /* Can't happen. */ |
29569577 |
917 | } |
918 | |
14a976d6 |
919 | XS(XS_Internals_SvREFCNT) /* This is dangerous stuff. */ |
29569577 |
920 | { |
97aff369 |
921 | dVAR; |
29569577 |
922 | dXSARGS; |
c4420975 |
923 | SV * const sv = SvRV(ST(0)); |
58c0efa5 |
924 | PERL_UNUSED_ARG(cv); |
6867be6d |
925 | |
29569577 |
926 | if (items == 1) |
14a976d6 |
927 | XSRETURN_IV(SvREFCNT(sv) - 1); /* Minus the ref created for us. */ |
29569577 |
928 | else if (items == 2) { |
14a976d6 |
929 | /* I hope you really know what you are doing. */ |
29569577 |
930 | SvREFCNT(sv) = SvIV(ST(1)); |
931 | XSRETURN_IV(SvREFCNT(sv)); |
932 | } |
14a976d6 |
933 | XSRETURN_UNDEF; /* Can't happen. */ |
29569577 |
934 | } |
935 | |
f044d0d1 |
936 | XS(XS_Internals_hv_clear_placehold) |
dfd4ef2f |
937 | { |
97aff369 |
938 | dVAR; |
dfd4ef2f |
939 | dXSARGS; |
58c0efa5 |
940 | PERL_UNUSED_ARG(cv); |
6867be6d |
941 | |
3540d4ce |
942 | if (items != 1) |
943 | Perl_croak(aTHX_ "Usage: UNIVERSAL::hv_clear_placeholders(hv)"); |
c4420975 |
944 | else { |
945 | HV * const hv = (HV *) SvRV(ST(0)); |
946 | hv_clear_placeholders(hv); |
947 | XSRETURN(0); |
948 | } |
dfd4ef2f |
949 | } |
39f7a870 |
950 | |
39cff0d9 |
951 | XS(XS_Regexp_DESTROY) |
952 | { |
96a5add6 |
953 | PERL_UNUSED_CONTEXT; |
53c1dcc0 |
954 | PERL_UNUSED_ARG(cv); |
39cff0d9 |
955 | } |
956 | |
39f7a870 |
957 | XS(XS_PerlIO_get_layers) |
958 | { |
97aff369 |
959 | dVAR; |
39f7a870 |
960 | dXSARGS; |
58c0efa5 |
961 | PERL_UNUSED_ARG(cv); |
39f7a870 |
962 | if (items < 1 || items % 2 == 0) |
963 | Perl_croak(aTHX_ "Usage: PerlIO_get_layers(filehandle[,args])"); |
5fef3b4a |
964 | #ifdef USE_PERLIO |
39f7a870 |
965 | { |
966 | SV * sv; |
967 | GV * gv; |
968 | IO * io; |
969 | bool input = TRUE; |
970 | bool details = FALSE; |
971 | |
972 | if (items > 1) { |
c4420975 |
973 | SV * const *svp; |
39f7a870 |
974 | for (svp = MARK + 2; svp <= SP; svp += 2) { |
c4420975 |
975 | SV * const * const varp = svp; |
976 | SV * const * const valp = svp + 1; |
39f7a870 |
977 | STRLEN klen; |
c4420975 |
978 | const char * const key = SvPV_const(*varp, klen); |
39f7a870 |
979 | |
980 | switch (*key) { |
981 | case 'i': |
982 | if (klen == 5 && memEQ(key, "input", 5)) { |
983 | input = SvTRUE(*valp); |
984 | break; |
985 | } |
986 | goto fail; |
987 | case 'o': |
988 | if (klen == 6 && memEQ(key, "output", 6)) { |
989 | input = !SvTRUE(*valp); |
990 | break; |
991 | } |
992 | goto fail; |
993 | case 'd': |
994 | if (klen == 7 && memEQ(key, "details", 7)) { |
995 | details = SvTRUE(*valp); |
996 | break; |
997 | } |
998 | goto fail; |
999 | default: |
1000 | fail: |
1001 | Perl_croak(aTHX_ |
1002 | "get_layers: unknown argument '%s'", |
1003 | key); |
1004 | } |
1005 | } |
1006 | |
1007 | SP -= (items - 1); |
1008 | } |
1009 | |
1010 | sv = POPs; |
1011 | gv = (GV*)sv; |
1012 | |
1013 | if (!isGV(sv)) { |
1014 | if (SvROK(sv) && isGV(SvRV(sv))) |
1015 | gv = (GV*)SvRV(sv); |
671d49be |
1016 | else if (SvPOKp(sv)) |
f776e3cd |
1017 | gv = gv_fetchsv(sv, 0, SVt_PVIO); |
39f7a870 |
1018 | } |
1019 | |
1020 | if (gv && (io = GvIO(gv))) { |
1021 | dTARGET; |
c4420975 |
1022 | AV* const av = PerlIO_get_layers(aTHX_ input ? |
39f7a870 |
1023 | IoIFP(io) : IoOFP(io)); |
1024 | I32 i; |
c4420975 |
1025 | const I32 last = av_len(av); |
39f7a870 |
1026 | I32 nitem = 0; |
1027 | |
1028 | for (i = last; i >= 0; i -= 3) { |
c4420975 |
1029 | SV * const * const namsvp = av_fetch(av, i - 2, FALSE); |
1030 | SV * const * const argsvp = av_fetch(av, i - 1, FALSE); |
1031 | SV * const * const flgsvp = av_fetch(av, i, FALSE); |
39f7a870 |
1032 | |
c4420975 |
1033 | const bool namok = namsvp && *namsvp && SvPOK(*namsvp); |
1034 | const bool argok = argsvp && *argsvp && SvPOK(*argsvp); |
1035 | const bool flgok = flgsvp && *flgsvp && SvIOK(*flgsvp); |
39f7a870 |
1036 | |
1037 | if (details) { |
ec3bab8e |
1038 | XPUSHs(namok |
1039 | ? newSVpvn(SvPVX_const(*namsvp), SvCUR(*namsvp)) |
1040 | : &PL_sv_undef); |
1041 | XPUSHs(argok |
1042 | ? newSVpvn(SvPVX_const(*argsvp), SvCUR(*argsvp)) |
1043 | : &PL_sv_undef); |
39f7a870 |
1044 | if (flgok) |
1045 | XPUSHi(SvIVX(*flgsvp)); |
1046 | else |
1047 | XPUSHs(&PL_sv_undef); |
1048 | nitem += 3; |
1049 | } |
1050 | else { |
1051 | if (namok && argok) |
1052 | XPUSHs(Perl_newSVpvf(aTHX_ "%"SVf"(%"SVf")", |
be2597df |
1053 | SVfARG(*namsvp), |
1054 | SVfARG(*argsvp))); |
39f7a870 |
1055 | else if (namok) |
95b63a38 |
1056 | XPUSHs(Perl_newSVpvf(aTHX_ "%"SVf, |
be2597df |
1057 | SVfARG(*namsvp))); |
39f7a870 |
1058 | else |
1059 | XPUSHs(&PL_sv_undef); |
1060 | nitem++; |
1061 | if (flgok) { |
c4420975 |
1062 | const IV flags = SvIVX(*flgsvp); |
39f7a870 |
1063 | |
1064 | if (flags & PERLIO_F_UTF8) { |
396482e1 |
1065 | XPUSHs(newSVpvs("utf8")); |
39f7a870 |
1066 | nitem++; |
1067 | } |
1068 | } |
1069 | } |
1070 | } |
1071 | |
1072 | SvREFCNT_dec(av); |
1073 | |
1074 | XSRETURN(nitem); |
1075 | } |
1076 | } |
5fef3b4a |
1077 | #endif |
39f7a870 |
1078 | |
1079 | XSRETURN(0); |
1080 | } |
1081 | |
9a7034eb |
1082 | XS(XS_Internals_hash_seed) |
c910b28a |
1083 | { |
97aff369 |
1084 | dVAR; |
c85d3f85 |
1085 | /* Using dXSARGS would also have dITEM and dSP, |
1086 | * which define 2 unused local variables. */ |
557b887a |
1087 | dAXMARK; |
53c1dcc0 |
1088 | PERL_UNUSED_ARG(cv); |
ad73156c |
1089 | PERL_UNUSED_VAR(mark); |
81eaca17 |
1090 | XSRETURN_UV(PERL_HASH_SEED); |
c910b28a |
1091 | } |
1092 | |
008fb0c0 |
1093 | XS(XS_Internals_rehash_seed) |
8e90d776 |
1094 | { |
97aff369 |
1095 | dVAR; |
8e90d776 |
1096 | /* Using dXSARGS would also have dITEM and dSP, |
1097 | * which define 2 unused local variables. */ |
557b887a |
1098 | dAXMARK; |
53c1dcc0 |
1099 | PERL_UNUSED_ARG(cv); |
ad73156c |
1100 | PERL_UNUSED_VAR(mark); |
008fb0c0 |
1101 | XSRETURN_UV(PL_rehash_seed); |
8e90d776 |
1102 | } |
1103 | |
05619474 |
1104 | XS(XS_Internals_HvREHASH) /* Subject to change */ |
1105 | { |
97aff369 |
1106 | dVAR; |
05619474 |
1107 | dXSARGS; |
58c0efa5 |
1108 | PERL_UNUSED_ARG(cv); |
05619474 |
1109 | if (SvROK(ST(0))) { |
c4420975 |
1110 | const HV * const hv = (HV *) SvRV(ST(0)); |
05619474 |
1111 | if (items == 1 && SvTYPE(hv) == SVt_PVHV) { |
1112 | if (HvREHASH(hv)) |
1113 | XSRETURN_YES; |
1114 | else |
1115 | XSRETURN_NO; |
1116 | } |
1117 | } |
1118 | Perl_croak(aTHX_ "Internals::HvREHASH $hashref"); |
1119 | } |
241d1a3b |
1120 | |
e1234d8e |
1121 | XS(XS_Internals_inc_sub_generation) |
1122 | { |
97aff369 |
1123 | dVAR; |
e1234d8e |
1124 | /* Using dXSARGS would also have dITEM and dSP, |
1125 | * which define 2 unused local variables. */ |
1126 | dAXMARK; |
1127 | PERL_UNUSED_ARG(cv); |
1128 | PERL_UNUSED_VAR(mark); |
1129 | ++PL_sub_generation; |
1130 | XSRETURN_EMPTY; |
1131 | } |
1132 | |
80305961 |
1133 | XS(XS_re_is_regexp) |
1134 | { |
1135 | dVAR; |
1136 | dXSARGS; |
1137 | if (items != 1) |
1138 | Perl_croak(aTHX_ "Usage: %s(%s)", "re::is_regexp", "sv"); |
1139 | PERL_UNUSED_VAR(cv); /* -W */ |
1140 | PERL_UNUSED_VAR(ax); /* -Wall */ |
1141 | SP -= items; |
1142 | { |
1143 | SV * sv = ST(0); |
1144 | if ( Perl_get_re_arg( aTHX_ sv, 0, NULL ) ) |
1145 | { |
1146 | XSRETURN_YES; |
1147 | } else { |
1148 | XSRETURN_NO; |
1149 | } |
1150 | /* NOTREACHED */ |
1151 | PUTBACK; |
1152 | return; |
1153 | } |
1154 | } |
1155 | |
1156 | XS(XS_re_regname) |
1157 | { |
1158 | |
1159 | dVAR; |
1160 | dXSARGS; |
1161 | if (items < 1 || items > 3) |
1162 | Perl_croak(aTHX_ "Usage: %s(%s)", "re::regname", "sv, qr = NULL, all = NULL"); |
1163 | PERL_UNUSED_VAR(cv); /* -W */ |
1164 | PERL_UNUSED_VAR(ax); /* -Wall */ |
1165 | SP -= items; |
1166 | { |
1167 | SV * sv = ST(0); |
1168 | SV * qr; |
1169 | SV * all; |
1170 | regexp *re = NULL; |
1171 | SV *bufs = NULL; |
1172 | |
1173 | if (items < 2) |
1174 | qr = NULL; |
1175 | else { |
1176 | qr = ST(1); |
1177 | } |
1178 | |
1179 | if (items < 3) |
1180 | all = NULL; |
1181 | else { |
1182 | all = ST(2); |
1183 | } |
1184 | { |
1185 | re = Perl_get_re_arg( aTHX_ qr, 1, NULL); |
1186 | if (SvPOK(sv) && re && re->paren_names) { |
1187 | bufs = CALLREG_NAMEDBUF(re,sv,all && SvTRUE(all)); |
1188 | if (bufs) { |
1189 | if (all && SvTRUE(all)) |
1190 | XPUSHs(newRV(bufs)); |
1191 | else |
1192 | XPUSHs(SvREFCNT_inc(bufs)); |
1193 | XSRETURN(1); |
1194 | } |
1195 | } |
1196 | XSRETURN_UNDEF; |
1197 | } |
1198 | PUTBACK; |
1199 | return; |
1200 | } |
1201 | } |
1202 | |
1203 | XS(XS_re_regnames) |
1204 | { |
1205 | dVAR; |
1206 | dXSARGS; |
1207 | if (items < 0 || items > 2) |
1208 | Perl_croak(aTHX_ "Usage: %s(%s)", "re::regnames", "sv = NULL, all = NULL"); |
1209 | PERL_UNUSED_VAR(cv); /* -W */ |
1210 | PERL_UNUSED_VAR(ax); /* -Wall */ |
1211 | SP -= items; |
1212 | { |
1213 | SV * sv; |
1214 | SV * all; |
1215 | regexp *re = NULL; |
1216 | IV count = 0; |
1217 | |
1218 | if (items < 1) |
1219 | sv = NULL; |
1220 | else { |
1221 | sv = ST(0); |
1222 | } |
1223 | |
1224 | if (items < 2) |
1225 | all = NULL; |
1226 | else { |
1227 | all = ST(1); |
1228 | } |
1229 | { |
1230 | re = Perl_get_re_arg( aTHX_ sv, 1, NULL ); |
1231 | if (re && re->paren_names) { |
1232 | HV *hv= re->paren_names; |
1233 | (void)hv_iterinit(hv); |
1234 | while (1) { |
1235 | HE *temphe = hv_iternext_flags(hv,0); |
1236 | if (temphe) { |
1237 | IV i; |
1238 | IV parno = 0; |
1239 | SV* sv_dat = HeVAL(temphe); |
1240 | I32 *nums = (I32*)SvPVX(sv_dat); |
1241 | for ( i = 0; i < SvIVX(sv_dat); i++ ) { |
1242 | if ((I32)(re->lastcloseparen) >= nums[i] && |
1243 | re->startp[nums[i]] != -1 && |
1244 | re->endp[nums[i]] != -1) |
1245 | { |
1246 | parno = nums[i]; |
1247 | break; |
1248 | } |
1249 | } |
1250 | if (parno || (all && SvTRUE(all))) { |
1251 | STRLEN len; |
1252 | char *pv = HePV(temphe, len); |
1253 | if ( GIMME_V == G_ARRAY ) |
1254 | XPUSHs(newSVpvn(pv,len)); |
1255 | count++; |
1256 | } |
1257 | } else { |
1258 | break; |
1259 | } |
1260 | } |
1261 | } |
1262 | if ( GIMME_V == G_ARRAY ) |
1263 | XSRETURN(count); |
1264 | else |
1265 | XSRETURN_UNDEF; |
1266 | } |
1267 | PUTBACK; |
1268 | return; |
1269 | } |
1270 | } |
1271 | |
1272 | |
1273 | XS(XS_re_regnames_iterinit) |
1274 | { |
1275 | dVAR; |
1276 | dXSARGS; |
1277 | if (items < 0 || items > 1) |
1278 | Perl_croak(aTHX_ "Usage: %s(%s)", "re::regnames_iterinit", "sv = NULL"); |
1279 | PERL_UNUSED_VAR(cv); /* -W */ |
1280 | PERL_UNUSED_VAR(ax); /* -Wall */ |
1281 | SP -= items; |
1282 | { |
1283 | SV * sv; |
1284 | regexp *re = NULL; |
1285 | |
1286 | if (items < 1) |
1287 | sv = NULL; |
1288 | else { |
1289 | sv = ST(0); |
1290 | } |
1291 | { |
1292 | re = Perl_get_re_arg( aTHX_ sv, 1, NULL ); |
1293 | if (re && re->paren_names) { |
1294 | (void)hv_iterinit(re->paren_names); |
1295 | XPUSHs(newSViv(HvTOTALKEYS(re->paren_names))); |
1296 | } else { |
1297 | XSRETURN_UNDEF; |
1298 | } |
1299 | } |
1300 | PUTBACK; |
1301 | return; |
1302 | } |
1303 | } |
1304 | |
1305 | |
1306 | XS(XS_re_regnames_iternext) |
1307 | { |
1308 | dVAR; |
1309 | dXSARGS; |
1310 | if (items < 0 || items > 2) |
1311 | Perl_croak(aTHX_ "Usage: %s(%s)", "re::regnames_iternext", "sv = NULL, all = NULL"); |
1312 | PERL_UNUSED_VAR(cv); /* -W */ |
1313 | PERL_UNUSED_VAR(ax); /* -Wall */ |
1314 | SP -= items; |
1315 | { |
1316 | SV * sv; |
1317 | SV * all; |
1318 | regexp *re; |
1319 | |
1320 | if (items < 1) |
1321 | sv = NULL; |
1322 | else { |
1323 | sv = ST(0); |
1324 | } |
1325 | |
1326 | if (items < 2) |
1327 | all = NULL; |
1328 | else { |
1329 | all = ST(1); |
1330 | } |
1331 | { |
1332 | re = Perl_get_re_arg( aTHX_ sv, 1, NULL ); |
1333 | if (re && re->paren_names) { |
1334 | HV *hv= re->paren_names; |
1335 | while (1) { |
1336 | HE *temphe = hv_iternext_flags(hv,0); |
1337 | if (temphe) { |
1338 | IV i; |
1339 | IV parno = 0; |
1340 | SV* sv_dat = HeVAL(temphe); |
1341 | I32 *nums = (I32*)SvPVX(sv_dat); |
1342 | for ( i = 0; i < SvIVX(sv_dat); i++ ) { |
1343 | if ((I32)(re->lastcloseparen) >= nums[i] && |
1344 | re->startp[nums[i]] != -1 && |
1345 | re->endp[nums[i]] != -1) |
1346 | { |
1347 | parno = nums[i]; |
1348 | break; |
1349 | } |
1350 | } |
1351 | if (parno || (all && SvTRUE(all))) { |
1352 | STRLEN len; |
1353 | char *pv = HePV(temphe, len); |
1354 | XPUSHs(newSVpvn(pv,len)); |
1355 | XSRETURN(1); |
1356 | } |
1357 | } else { |
1358 | break; |
1359 | } |
1360 | } |
1361 | } |
1362 | XSRETURN_UNDEF; |
1363 | } |
1364 | PUTBACK; |
1365 | return; |
1366 | } |
1367 | } |
1368 | |
1369 | |
1370 | XS(XS_re_regnames_count) |
1371 | { |
1372 | SV * sv; |
1373 | regexp *re = NULL; |
1374 | dVAR; |
1375 | dXSARGS; |
1376 | |
1377 | if (items < 0 || items > 1) |
1378 | Perl_croak(aTHX_ "Usage: %s(%s)", "re::regnames_count", "sv = NULL"); |
1379 | PERL_UNUSED_VAR(cv); /* -W */ |
1380 | PERL_UNUSED_VAR(ax); /* -Wall */ |
1381 | SP -= items; |
1382 | if (items < 1) |
1383 | sv = NULL; |
1384 | else { |
1385 | sv = ST(0); |
1386 | } |
1387 | re = Perl_get_re_arg( aTHX_ sv, 1, NULL ); |
1388 | if (re && re->paren_names) { |
1389 | XPUSHs(newSViv(HvTOTALKEYS(re->paren_names))); |
1390 | } else { |
1391 | XSRETURN_UNDEF; |
1392 | } |
1393 | PUTBACK; |
1394 | return; |
1395 | } |
1396 | |
1397 | |
241d1a3b |
1398 | /* |
1399 | * Local variables: |
1400 | * c-indentation-style: bsd |
1401 | * c-basic-offset: 4 |
1402 | * indent-tabs-mode: t |
1403 | * End: |
1404 | * |
37442d52 |
1405 | * ex: set ts=8 sts=4 sw=4 noet: |
1406 | */ |