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; |
59e7186f |
188 | SV *methodname; |
cbc021f9 |
189 | |
190 | dSP; |
191 | ENTER; |
192 | SAVETMPS; |
193 | |
194 | SvGETMAGIC(sv); |
195 | |
196 | if (!SvOK(sv) || !(SvROK(sv) || (SvPOK(sv) && SvCUR(sv)) |
197 | || (SvGMAGICAL(sv) && SvPOKp(sv) && SvCUR(sv)))) |
198 | return FALSE; |
199 | |
200 | if (sv_isobject(sv)) { |
201 | classname = sv_reftype(SvRV(sv),TRUE); |
202 | } else { |
94707740 |
203 | classname = SvPV_nolen(sv); |
cbc021f9 |
204 | } |
205 | |
206 | if (strEQ(name,classname)) |
207 | return TRUE; |
208 | |
209 | PUSHMARK(SP); |
210 | XPUSHs(sv); |
211 | XPUSHs(sv_2mortal(newSVpv(name, 0))); |
212 | PUTBACK; |
213 | |
59e7186f |
214 | methodname = sv_2mortal(newSVpv("isa", 0)); |
215 | /* ugly hack: use the SvSCREAM flag so S_method_common |
216 | * can figure out we're calling DOES() and not isa(), |
217 | * and report eventual errors correctly. --rgs */ |
218 | SvSCREAM_on(methodname); |
219 | call_sv(methodname, G_SCALAR | G_METHOD); |
cbc021f9 |
220 | SPAGAIN; |
221 | |
222 | does_it = SvTRUE( TOPs ); |
223 | FREETMPS; |
224 | LEAVE; |
225 | |
226 | return does_it; |
227 | } |
228 | |
80305961 |
229 | regexp * |
230 | Perl_get_re_arg( pTHX_ SV *sv, U32 flags, MAGIC **mgp) { |
231 | MAGIC *mg; |
232 | if (sv) { |
233 | if (SvMAGICAL(sv)) |
234 | mg_get(sv); |
235 | if (SvROK(sv) && |
236 | (sv = (SV*)SvRV(sv)) && /* assign deliberate */ |
237 | SvTYPE(sv) == SVt_PVMG && |
238 | (mg = mg_find(sv, PERL_MAGIC_qr))) /* assign deliberate */ |
239 | { |
240 | if (mgp) *mgp = mg; |
241 | return (regexp *)mg->mg_obj; |
242 | } |
243 | } |
244 | if (mgp) *mgp = NULL; |
245 | return ((flags && PL_curpm) ? PM_GETRE(PL_curpm) : NULL); |
246 | } |
247 | |
248 | |
27da23d5 |
249 | PERL_XS_EXPORT_C void XS_UNIVERSAL_isa(pTHX_ CV *cv); |
250 | PERL_XS_EXPORT_C void XS_UNIVERSAL_can(pTHX_ CV *cv); |
cbc021f9 |
251 | PERL_XS_EXPORT_C void XS_UNIVERSAL_DOES(pTHX_ CV *cv); |
27da23d5 |
252 | PERL_XS_EXPORT_C void XS_UNIVERSAL_VERSION(pTHX_ CV *cv); |
439cb1c4 |
253 | XS(XS_version_new); |
254 | XS(XS_version_stringify); |
255 | XS(XS_version_numify); |
9137345a |
256 | XS(XS_version_normal); |
439cb1c4 |
257 | XS(XS_version_vcmp); |
258 | XS(XS_version_boolean); |
2dfd8427 |
259 | #ifdef HASATTRIBUTE_NORETURN |
260 | XS(XS_version_noop) __attribute__noreturn__; |
261 | #else |
439cb1c4 |
262 | XS(XS_version_noop); |
2dfd8427 |
263 | #endif |
c8d69e4a |
264 | XS(XS_version_is_alpha); |
137d6fc0 |
265 | XS(XS_version_qv); |
8800c35a |
266 | XS(XS_utf8_is_utf8); |
1b026014 |
267 | XS(XS_utf8_valid); |
268 | XS(XS_utf8_encode); |
269 | XS(XS_utf8_decode); |
270 | XS(XS_utf8_upgrade); |
271 | XS(XS_utf8_downgrade); |
272 | XS(XS_utf8_unicode_to_native); |
273 | XS(XS_utf8_native_to_unicode); |
29569577 |
274 | XS(XS_Internals_SvREADONLY); |
275 | XS(XS_Internals_SvREFCNT); |
f044d0d1 |
276 | XS(XS_Internals_hv_clear_placehold); |
39f7a870 |
277 | XS(XS_PerlIO_get_layers); |
39cff0d9 |
278 | XS(XS_Regexp_DESTROY); |
9a7034eb |
279 | XS(XS_Internals_hash_seed); |
008fb0c0 |
280 | XS(XS_Internals_rehash_seed); |
05619474 |
281 | XS(XS_Internals_HvREHASH); |
e1234d8e |
282 | XS(XS_Internals_inc_sub_generation); |
80305961 |
283 | XS(XS_re_is_regexp); |
284 | XS(XS_re_regname); |
285 | XS(XS_re_regnames); |
286 | XS(XS_re_regnames_iterinit); |
287 | XS(XS_re_regnames_iternext); |
288 | XS(XS_re_regnames_count); |
0cb96387 |
289 | |
290 | void |
291 | Perl_boot_core_UNIVERSAL(pTHX) |
292 | { |
97aff369 |
293 | dVAR; |
157e3fc8 |
294 | static const char file[] = __FILE__; |
0cb96387 |
295 | |
296 | newXS("UNIVERSAL::isa", XS_UNIVERSAL_isa, file); |
297 | newXS("UNIVERSAL::can", XS_UNIVERSAL_can, file); |
cbc021f9 |
298 | newXS("UNIVERSAL::DOES", XS_UNIVERSAL_DOES, file); |
0cb96387 |
299 | newXS("UNIVERSAL::VERSION", XS_UNIVERSAL_VERSION, file); |
439cb1c4 |
300 | { |
ad63d80f |
301 | /* register the overloading (type 'A') magic */ |
302 | PL_amagic_generation++; |
439cb1c4 |
303 | /* Make it findable via fetchmethod */ |
be2ebcad |
304 | newXS("version::()", XS_version_noop, file); |
439cb1c4 |
305 | newXS("version::new", XS_version_new, file); |
306 | newXS("version::(\"\"", XS_version_stringify, file); |
307 | newXS("version::stringify", XS_version_stringify, file); |
308 | newXS("version::(0+", XS_version_numify, file); |
309 | newXS("version::numify", XS_version_numify, file); |
9137345a |
310 | newXS("version::normal", XS_version_normal, file); |
439cb1c4 |
311 | newXS("version::(cmp", XS_version_vcmp, file); |
312 | newXS("version::(<=>", XS_version_vcmp, file); |
313 | newXS("version::vcmp", XS_version_vcmp, file); |
314 | newXS("version::(bool", XS_version_boolean, file); |
315 | newXS("version::boolean", XS_version_boolean, file); |
316 | newXS("version::(nomethod", XS_version_noop, file); |
317 | newXS("version::noop", XS_version_noop, file); |
c8d69e4a |
318 | newXS("version::is_alpha", XS_version_is_alpha, file); |
137d6fc0 |
319 | newXS("version::qv", XS_version_qv, file); |
439cb1c4 |
320 | } |
8800c35a |
321 | newXS("utf8::is_utf8", XS_utf8_is_utf8, file); |
1b026014 |
322 | newXS("utf8::valid", XS_utf8_valid, file); |
323 | newXS("utf8::encode", XS_utf8_encode, file); |
324 | newXS("utf8::decode", XS_utf8_decode, file); |
325 | newXS("utf8::upgrade", XS_utf8_upgrade, file); |
326 | newXS("utf8::downgrade", XS_utf8_downgrade, file); |
327 | newXS("utf8::native_to_unicode", XS_utf8_native_to_unicode, file); |
328 | newXS("utf8::unicode_to_native", XS_utf8_unicode_to_native, file); |
29569577 |
329 | newXSproto("Internals::SvREADONLY",XS_Internals_SvREADONLY, file, "\\[$%@];$"); |
330 | newXSproto("Internals::SvREFCNT",XS_Internals_SvREFCNT, file, "\\[$%@];$"); |
dfd4ef2f |
331 | newXSproto("Internals::hv_clear_placeholders", |
f044d0d1 |
332 | XS_Internals_hv_clear_placehold, file, "\\%"); |
9d569fce |
333 | newXSproto("PerlIO::get_layers", |
334 | XS_PerlIO_get_layers, file, "*;@"); |
39cff0d9 |
335 | newXS("Regexp::DESTROY", XS_Regexp_DESTROY, file); |
9a7034eb |
336 | newXSproto("Internals::hash_seed",XS_Internals_hash_seed, file, ""); |
008fb0c0 |
337 | newXSproto("Internals::rehash_seed",XS_Internals_rehash_seed, file, ""); |
05619474 |
338 | newXSproto("Internals::HvREHASH", XS_Internals_HvREHASH, file, "\\%"); |
e1234d8e |
339 | newXSproto("Internals::inc_sub_generation",XS_Internals_inc_sub_generation, |
340 | file, ""); |
80305961 |
341 | newXSproto("re::is_regexp", XS_re_is_regexp, file, "$"); |
28d8d7f4 |
342 | newXSproto("re::regname", XS_re_regname, file, ";$$"); |
343 | newXSproto("re::regnames", XS_re_regnames, file, ";$"); |
344 | newXSproto("re::regnames_iterinit", XS_re_regnames_iterinit, file, ""); |
345 | newXSproto("re::regnames_iternext", XS_re_regnames_iternext, file, ";$"); |
346 | newXSproto("re::regnames_count", XS_re_regnames_count, file, ""); |
0cb96387 |
347 | } |
348 | |
55497cff |
349 | |
6d4a7be2 |
350 | XS(XS_UNIVERSAL_isa) |
351 | { |
97aff369 |
352 | dVAR; |
6d4a7be2 |
353 | dXSARGS; |
58c0efa5 |
354 | PERL_UNUSED_ARG(cv); |
6d4a7be2 |
355 | |
356 | if (items != 2) |
cea2e8a9 |
357 | Perl_croak(aTHX_ "Usage: UNIVERSAL::isa(reference, kind)"); |
c4420975 |
358 | else { |
359 | SV * const sv = ST(0); |
360 | const char *name; |
6d4a7be2 |
361 | |
c4420975 |
362 | SvGETMAGIC(sv); |
d3f7f2b2 |
363 | |
c4420975 |
364 | if (!SvOK(sv) || !(SvROK(sv) || (SvPOK(sv) && SvCUR(sv)) |
365 | || (SvGMAGICAL(sv) && SvPOKp(sv) && SvCUR(sv)))) |
366 | XSRETURN_UNDEF; |
f8f70380 |
367 | |
c4420975 |
368 | name = SvPV_nolen_const(ST(1)); |
6d4a7be2 |
369 | |
c4420975 |
370 | ST(0) = boolSV(sv_derived_from(sv, name)); |
371 | XSRETURN(1); |
372 | } |
6d4a7be2 |
373 | } |
374 | |
6d4a7be2 |
375 | XS(XS_UNIVERSAL_can) |
376 | { |
97aff369 |
377 | dVAR; |
6d4a7be2 |
378 | dXSARGS; |
379 | SV *sv; |
6867be6d |
380 | const char *name; |
6d4a7be2 |
381 | SV *rv; |
6f08146e |
382 | HV *pkg = NULL; |
58c0efa5 |
383 | PERL_UNUSED_ARG(cv); |
6d4a7be2 |
384 | |
385 | if (items != 2) |
cea2e8a9 |
386 | Perl_croak(aTHX_ "Usage: UNIVERSAL::can(object-ref, method)"); |
6d4a7be2 |
387 | |
388 | sv = ST(0); |
f8f70380 |
389 | |
5b295bef |
390 | SvGETMAGIC(sv); |
d3f7f2b2 |
391 | |
253ecd6d |
392 | if (!SvOK(sv) || !(SvROK(sv) || (SvPOK(sv) && SvCUR(sv)) |
393 | || (SvGMAGICAL(sv) && SvPOKp(sv) && SvCUR(sv)))) |
f8f70380 |
394 | XSRETURN_UNDEF; |
395 | |
0510663f |
396 | name = SvPV_nolen_const(ST(1)); |
3280af22 |
397 | rv = &PL_sv_undef; |
6d4a7be2 |
398 | |
46e4b22b |
399 | if (SvROK(sv)) { |
6f08146e |
400 | sv = (SV*)SvRV(sv); |
46e4b22b |
401 | if (SvOBJECT(sv)) |
6f08146e |
402 | pkg = SvSTASH(sv); |
403 | } |
404 | else { |
da51bb9b |
405 | pkg = gv_stashsv(sv, 0); |
6f08146e |
406 | } |
407 | |
408 | if (pkg) { |
c4420975 |
409 | GV * const gv = gv_fetchmethod_autoload(pkg, name, FALSE); |
dc848c6f |
410 | if (gv && isGV(gv)) |
411 | rv = sv_2mortal(newRV((SV*)GvCV(gv))); |
6d4a7be2 |
412 | } |
413 | |
414 | ST(0) = rv; |
415 | XSRETURN(1); |
416 | } |
417 | |
cbc021f9 |
418 | XS(XS_UNIVERSAL_DOES) |
419 | { |
420 | dVAR; |
421 | dXSARGS; |
58c0efa5 |
422 | PERL_UNUSED_ARG(cv); |
cbc021f9 |
423 | |
424 | if (items != 2) |
425 | Perl_croak(aTHX_ "Usage: invocant->does(kind)"); |
426 | else { |
427 | SV * const sv = ST(0); |
428 | const char *name; |
429 | |
430 | name = SvPV_nolen_const(ST(1)); |
431 | if (sv_does( sv, name )) |
432 | XSRETURN_YES; |
433 | |
434 | XSRETURN_NO; |
435 | } |
436 | } |
437 | |
6d4a7be2 |
438 | XS(XS_UNIVERSAL_VERSION) |
439 | { |
97aff369 |
440 | dVAR; |
6d4a7be2 |
441 | dXSARGS; |
442 | HV *pkg; |
443 | GV **gvp; |
444 | GV *gv; |
445 | SV *sv; |
e1ec3a88 |
446 | const char *undef; |
58c0efa5 |
447 | PERL_UNUSED_ARG(cv); |
6d4a7be2 |
448 | |
1571675a |
449 | if (SvROK(ST(0))) { |
6d4a7be2 |
450 | sv = (SV*)SvRV(ST(0)); |
1571675a |
451 | if (!SvOBJECT(sv)) |
cea2e8a9 |
452 | Perl_croak(aTHX_ "Cannot find version of an unblessed reference"); |
6d4a7be2 |
453 | pkg = SvSTASH(sv); |
454 | } |
455 | else { |
da51bb9b |
456 | pkg = gv_stashsv(ST(0), 0); |
6d4a7be2 |
457 | } |
458 | |
4608196e |
459 | gvp = pkg ? (GV**)hv_fetchs(pkg, "VERSION", FALSE) : NULL; |
6d4a7be2 |
460 | |
0008872a |
461 | if (gvp && isGV(gv = *gvp) && (sv = GvSV(gv)) && SvOK(sv)) { |
c4420975 |
462 | SV * const nsv = sv_newmortal(); |
6d4a7be2 |
463 | sv_setsv(nsv, sv); |
464 | sv = nsv; |
137d6fc0 |
465 | if ( !sv_derived_from(sv, "version")) |
ac0e6a2f |
466 | upg_version(sv, FALSE); |
c445ea15 |
467 | undef = NULL; |
6d4a7be2 |
468 | } |
469 | else { |
3280af22 |
470 | sv = (SV*)&PL_sv_undef; |
6d4a7be2 |
471 | undef = "(undef)"; |
472 | } |
473 | |
1571675a |
474 | if (items > 1) { |
1571675a |
475 | SV *req = ST(1); |
476 | |
62658f4d |
477 | if (undef) { |
bfcb3514 |
478 | if (pkg) { |
c4420975 |
479 | const char * const name = HvNAME_get(pkg); |
a3b680e6 |
480 | Perl_croak(aTHX_ |
bfcb3514 |
481 | "%s does not define $%s::VERSION--version check failed", |
482 | name, name); |
483 | } else { |
a3b680e6 |
484 | Perl_croak(aTHX_ |
485 | "%s defines neither package nor VERSION--version check failed", |
0510663f |
486 | SvPVx_nolen_const(ST(0)) ); |
62658f4d |
487 | } |
488 | } |
ad63d80f |
489 | |
137d6fc0 |
490 | if ( !sv_derived_from(req, "version")) { |
491 | /* req may very well be R/O, so create a new object */ |
ac0e6a2f |
492 | req = sv_2mortal( new_version(req) ); |
137d6fc0 |
493 | } |
1571675a |
494 | |
ac0e6a2f |
495 | if ( vcmp( req, sv ) > 0 ) { |
496 | if ( hv_exists((HV*)SvRV(req), "qv", 2 ) ) { |
497 | Perl_croak(aTHX_ "%s version %"SVf" required--" |
498 | "this is only version %"SVf"", HvNAME_get(pkg), |
be2597df |
499 | SVfARG(vnormal(req)), |
be2597df |
500 | SVfARG(vnormal(sv))); |
ac0e6a2f |
501 | } else { |
502 | Perl_croak(aTHX_ "%s version %"SVf" required--" |
503 | "this is only version %"SVf"", HvNAME_get(pkg), |
504 | SVfARG(vnumify(req)), |
505 | SVfARG(vnumify(sv))); |
506 | } |
507 | } |
508 | |
2d8e6c8d |
509 | } |
6d4a7be2 |
510 | |
2b140d5b |
511 | if ( SvOK(sv) && sv_derived_from(sv, "version") ) { |
b38a9dc5 |
512 | ST(0) = vnumify(sv); |
13f8f398 |
513 | } else { |
514 | ST(0) = sv; |
b38a9dc5 |
515 | } |
6d4a7be2 |
516 | |
517 | XSRETURN(1); |
518 | } |
519 | |
439cb1c4 |
520 | XS(XS_version_new) |
521 | { |
97aff369 |
522 | dVAR; |
439cb1c4 |
523 | dXSARGS; |
58c0efa5 |
524 | PERL_UNUSED_ARG(cv); |
129318bd |
525 | if (items > 3) |
439cb1c4 |
526 | Perl_croak(aTHX_ "Usage: version::new(class, version)"); |
527 | SP -= items; |
528 | { |
137d6fc0 |
529 | SV *vs = ST(1); |
530 | SV *rv; |
c4420975 |
531 | const char * const classname = |
532 | sv_isobject(ST(0)) /* get the class if called as an object method */ |
533 | ? HvNAME(SvSTASH(SvRV(ST(0)))) |
534 | : (char *)SvPV_nolen(ST(0)); |
9137345a |
535 | |
92dcf8ce |
536 | if ( items == 1 || vs == &PL_sv_undef ) { /* no param or explicit undef */ |
537 | /* create empty object */ |
538 | vs = sv_newmortal(); |
539 | sv_setpvn(vs,"",0); |
9137345a |
540 | } |
541 | else if ( items == 3 ) { |
542 | vs = sv_newmortal(); |
cfd0369c |
543 | Perl_sv_setpvf(aTHX_ vs,"v%s",SvPV_nolen_const(ST(2))); |
129318bd |
544 | } |
439cb1c4 |
545 | |
137d6fc0 |
546 | rv = new_version(vs); |
0723351e |
547 | if ( strcmp(classname,"version") != 0 ) /* inherited new() */ |
da51bb9b |
548 | sv_bless(rv, gv_stashpv(classname, GV_ADD)); |
137d6fc0 |
549 | |
550 | PUSHs(sv_2mortal(rv)); |
439cb1c4 |
551 | PUTBACK; |
552 | return; |
553 | } |
554 | } |
555 | |
556 | XS(XS_version_stringify) |
557 | { |
97aff369 |
558 | dVAR; |
41be1fbd |
559 | dXSARGS; |
58c0efa5 |
560 | PERL_UNUSED_ARG(cv); |
41be1fbd |
561 | if (items < 1) |
562 | Perl_croak(aTHX_ "Usage: version::stringify(lobj, ...)"); |
563 | SP -= items; |
564 | { |
7452cf6a |
565 | SV * lobj; |
41be1fbd |
566 | |
567 | if (sv_derived_from(ST(0), "version")) { |
9137345a |
568 | lobj = SvRV(ST(0)); |
41be1fbd |
569 | } |
570 | else |
571 | Perl_croak(aTHX_ "lobj is not of type version"); |
572 | |
137d6fc0 |
573 | PUSHs(sv_2mortal(vstringify(lobj))); |
41be1fbd |
574 | |
575 | PUTBACK; |
576 | return; |
577 | } |
439cb1c4 |
578 | } |
579 | |
580 | XS(XS_version_numify) |
581 | { |
97aff369 |
582 | dVAR; |
41be1fbd |
583 | dXSARGS; |
58c0efa5 |
584 | PERL_UNUSED_ARG(cv); |
41be1fbd |
585 | if (items < 1) |
586 | Perl_croak(aTHX_ "Usage: version::numify(lobj, ...)"); |
587 | SP -= items; |
588 | { |
7452cf6a |
589 | SV * lobj; |
41be1fbd |
590 | |
591 | if (sv_derived_from(ST(0), "version")) { |
9137345a |
592 | lobj = SvRV(ST(0)); |
41be1fbd |
593 | } |
594 | else |
595 | Perl_croak(aTHX_ "lobj is not of type version"); |
596 | |
137d6fc0 |
597 | PUSHs(sv_2mortal(vnumify(lobj))); |
41be1fbd |
598 | |
599 | PUTBACK; |
600 | return; |
601 | } |
439cb1c4 |
602 | } |
603 | |
9137345a |
604 | XS(XS_version_normal) |
605 | { |
97aff369 |
606 | dVAR; |
9137345a |
607 | dXSARGS; |
58c0efa5 |
608 | PERL_UNUSED_ARG(cv); |
9137345a |
609 | if (items < 1) |
610 | Perl_croak(aTHX_ "Usage: version::normal(lobj, ...)"); |
611 | SP -= items; |
612 | { |
7452cf6a |
613 | SV * lobj; |
9137345a |
614 | |
615 | if (sv_derived_from(ST(0), "version")) { |
616 | lobj = SvRV(ST(0)); |
617 | } |
618 | else |
619 | Perl_croak(aTHX_ "lobj is not of type version"); |
620 | |
621 | PUSHs(sv_2mortal(vnormal(lobj))); |
622 | |
623 | PUTBACK; |
624 | return; |
625 | } |
626 | } |
627 | |
439cb1c4 |
628 | XS(XS_version_vcmp) |
629 | { |
97aff369 |
630 | dVAR; |
41be1fbd |
631 | dXSARGS; |
58c0efa5 |
632 | PERL_UNUSED_ARG(cv); |
41be1fbd |
633 | if (items < 1) |
634 | Perl_croak(aTHX_ "Usage: version::vcmp(lobj, ...)"); |
635 | SP -= items; |
636 | { |
7452cf6a |
637 | SV * lobj; |
41be1fbd |
638 | |
639 | if (sv_derived_from(ST(0), "version")) { |
9137345a |
640 | lobj = SvRV(ST(0)); |
41be1fbd |
641 | } |
642 | else |
643 | Perl_croak(aTHX_ "lobj is not of type version"); |
644 | |
645 | { |
646 | SV *rs; |
647 | SV *rvs; |
648 | SV * robj = ST(1); |
7452cf6a |
649 | const IV swap = (IV)SvIV(ST(2)); |
41be1fbd |
650 | |
651 | if ( ! sv_derived_from(robj, "version") ) |
652 | { |
653 | robj = new_version(robj); |
654 | } |
655 | rvs = SvRV(robj); |
656 | |
657 | if ( swap ) |
658 | { |
659 | rs = newSViv(vcmp(rvs,lobj)); |
660 | } |
661 | else |
662 | { |
663 | rs = newSViv(vcmp(lobj,rvs)); |
664 | } |
665 | |
137d6fc0 |
666 | PUSHs(sv_2mortal(rs)); |
41be1fbd |
667 | } |
668 | |
669 | PUTBACK; |
670 | return; |
671 | } |
439cb1c4 |
672 | } |
673 | |
674 | XS(XS_version_boolean) |
675 | { |
97aff369 |
676 | dVAR; |
677 | dXSARGS; |
58c0efa5 |
678 | PERL_UNUSED_ARG(cv); |
97aff369 |
679 | if (items < 1) |
680 | Perl_croak(aTHX_ "Usage: version::boolean(lobj, ...)"); |
681 | SP -= items; |
c4420975 |
682 | if (sv_derived_from(ST(0), "version")) { |
683 | SV * const lobj = SvRV(ST(0)); |
396482e1 |
684 | SV * const rs = newSViv( vcmp(lobj,new_version(newSVpvs("0"))) ); |
c4420975 |
685 | PUSHs(sv_2mortal(rs)); |
686 | PUTBACK; |
687 | return; |
688 | } |
689 | else |
690 | Perl_croak(aTHX_ "lobj is not of type version"); |
439cb1c4 |
691 | } |
692 | |
693 | XS(XS_version_noop) |
694 | { |
97aff369 |
695 | dVAR; |
2dfd8427 |
696 | dXSARGS; |
58c0efa5 |
697 | PERL_UNUSED_ARG(cv); |
2dfd8427 |
698 | if (items < 1) |
699 | Perl_croak(aTHX_ "Usage: version::noop(lobj, ...)"); |
700 | if (sv_derived_from(ST(0), "version")) |
701 | Perl_croak(aTHX_ "operation not supported with version object"); |
702 | else |
703 | Perl_croak(aTHX_ "lobj is not of type version"); |
704 | #ifndef HASATTRIBUTE_NORETURN |
705 | XSRETURN_EMPTY; |
706 | #endif |
439cb1c4 |
707 | } |
708 | |
c8d69e4a |
709 | XS(XS_version_is_alpha) |
710 | { |
97aff369 |
711 | dVAR; |
c8d69e4a |
712 | dXSARGS; |
58c0efa5 |
713 | PERL_UNUSED_ARG(cv); |
c8d69e4a |
714 | if (items != 1) |
715 | Perl_croak(aTHX_ "Usage: version::is_alpha(lobj)"); |
716 | SP -= items; |
c4420975 |
717 | if (sv_derived_from(ST(0), "version")) { |
718 | SV * const lobj = ST(0); |
719 | if ( hv_exists((HV*)SvRV(lobj), "alpha", 5 ) ) |
720 | XSRETURN_YES; |
721 | else |
722 | XSRETURN_NO; |
c8d69e4a |
723 | PUTBACK; |
724 | return; |
725 | } |
c4420975 |
726 | else |
727 | Perl_croak(aTHX_ "lobj is not of type version"); |
c8d69e4a |
728 | } |
729 | |
137d6fc0 |
730 | XS(XS_version_qv) |
731 | { |
97aff369 |
732 | dVAR; |
137d6fc0 |
733 | dXSARGS; |
58c0efa5 |
734 | PERL_UNUSED_ARG(cv); |
137d6fc0 |
735 | if (items != 1) |
736 | Perl_croak(aTHX_ "Usage: version::qv(ver)"); |
737 | SP -= items; |
738 | { |
739 | SV * ver = ST(0); |
c4420975 |
740 | if ( !SvVOK(ver) ) { /* only need to do with if not already v-string */ |
ac0e6a2f |
741 | SV * const rv = sv_newmortal(); |
742 | sv_setsv(rv,ver); /* make a duplicate */ |
743 | upg_version(rv, TRUE); |
744 | PUSHs(rv); |
137d6fc0 |
745 | } |
746 | else |
747 | { |
748 | PUSHs(sv_2mortal(new_version(ver))); |
749 | } |
750 | |
751 | PUTBACK; |
752 | return; |
753 | } |
754 | } |
755 | |
8800c35a |
756 | XS(XS_utf8_is_utf8) |
757 | { |
97aff369 |
758 | dVAR; |
41be1fbd |
759 | dXSARGS; |
58c0efa5 |
760 | PERL_UNUSED_ARG(cv); |
41be1fbd |
761 | if (items != 1) |
762 | Perl_croak(aTHX_ "Usage: utf8::is_utf8(sv)"); |
c4420975 |
763 | else { |
764 | const SV * const sv = ST(0); |
765 | if (SvUTF8(sv)) |
766 | XSRETURN_YES; |
767 | else |
768 | XSRETURN_NO; |
41be1fbd |
769 | } |
770 | XSRETURN_EMPTY; |
8800c35a |
771 | } |
772 | |
1b026014 |
773 | XS(XS_utf8_valid) |
774 | { |
97aff369 |
775 | dVAR; |
41be1fbd |
776 | dXSARGS; |
58c0efa5 |
777 | PERL_UNUSED_ARG(cv); |
41be1fbd |
778 | if (items != 1) |
779 | Perl_croak(aTHX_ "Usage: utf8::valid(sv)"); |
c4420975 |
780 | else { |
781 | SV * const sv = ST(0); |
782 | STRLEN len; |
783 | const char * const s = SvPV_const(sv,len); |
784 | if (!SvUTF8(sv) || is_utf8_string((const U8*)s,len)) |
785 | XSRETURN_YES; |
786 | else |
787 | XSRETURN_NO; |
788 | } |
41be1fbd |
789 | XSRETURN_EMPTY; |
1b026014 |
790 | } |
791 | |
792 | XS(XS_utf8_encode) |
793 | { |
97aff369 |
794 | dVAR; |
1b026014 |
795 | dXSARGS; |
58c0efa5 |
796 | PERL_UNUSED_ARG(cv); |
1b026014 |
797 | if (items != 1) |
798 | Perl_croak(aTHX_ "Usage: utf8::encode(sv)"); |
c4420975 |
799 | sv_utf8_encode(ST(0)); |
1b026014 |
800 | XSRETURN_EMPTY; |
801 | } |
802 | |
803 | XS(XS_utf8_decode) |
804 | { |
97aff369 |
805 | dVAR; |
1b026014 |
806 | dXSARGS; |
58c0efa5 |
807 | PERL_UNUSED_ARG(cv); |
1b026014 |
808 | if (items != 1) |
809 | Perl_croak(aTHX_ "Usage: utf8::decode(sv)"); |
c4420975 |
810 | else { |
811 | SV * const sv = ST(0); |
6867be6d |
812 | const bool RETVAL = sv_utf8_decode(sv); |
1b026014 |
813 | ST(0) = boolSV(RETVAL); |
814 | sv_2mortal(ST(0)); |
815 | } |
816 | XSRETURN(1); |
817 | } |
818 | |
819 | XS(XS_utf8_upgrade) |
820 | { |
97aff369 |
821 | dVAR; |
1b026014 |
822 | dXSARGS; |
58c0efa5 |
823 | PERL_UNUSED_ARG(cv); |
1b026014 |
824 | if (items != 1) |
825 | Perl_croak(aTHX_ "Usage: utf8::upgrade(sv)"); |
c4420975 |
826 | else { |
827 | SV * const sv = ST(0); |
1b026014 |
828 | STRLEN RETVAL; |
829 | dXSTARG; |
830 | |
831 | RETVAL = sv_utf8_upgrade(sv); |
832 | XSprePUSH; PUSHi((IV)RETVAL); |
833 | } |
834 | XSRETURN(1); |
835 | } |
836 | |
837 | XS(XS_utf8_downgrade) |
838 | { |
97aff369 |
839 | dVAR; |
1b026014 |
840 | dXSARGS; |
58c0efa5 |
841 | PERL_UNUSED_ARG(cv); |
1b026014 |
842 | if (items < 1 || items > 2) |
843 | Perl_croak(aTHX_ "Usage: utf8::downgrade(sv, failok=0)"); |
c4420975 |
844 | else { |
845 | SV * const sv = ST(0); |
6867be6d |
846 | const bool failok = (items < 2) ? 0 : (int)SvIV(ST(1)); |
847 | const bool RETVAL = sv_utf8_downgrade(sv, failok); |
1b026014 |
848 | |
1b026014 |
849 | ST(0) = boolSV(RETVAL); |
850 | sv_2mortal(ST(0)); |
851 | } |
852 | XSRETURN(1); |
853 | } |
854 | |
855 | XS(XS_utf8_native_to_unicode) |
856 | { |
97aff369 |
857 | dVAR; |
1b026014 |
858 | dXSARGS; |
6867be6d |
859 | const UV uv = SvUV(ST(0)); |
58c0efa5 |
860 | PERL_UNUSED_ARG(cv); |
b7953727 |
861 | |
862 | if (items > 1) |
863 | Perl_croak(aTHX_ "Usage: utf8::native_to_unicode(sv)"); |
864 | |
1b026014 |
865 | ST(0) = sv_2mortal(newSViv(NATIVE_TO_UNI(uv))); |
866 | XSRETURN(1); |
867 | } |
868 | |
869 | XS(XS_utf8_unicode_to_native) |
870 | { |
97aff369 |
871 | dVAR; |
1b026014 |
872 | dXSARGS; |
6867be6d |
873 | const UV uv = SvUV(ST(0)); |
58c0efa5 |
874 | PERL_UNUSED_ARG(cv); |
b7953727 |
875 | |
876 | if (items > 1) |
877 | Perl_croak(aTHX_ "Usage: utf8::unicode_to_native(sv)"); |
878 | |
1b026014 |
879 | ST(0) = sv_2mortal(newSViv(UNI_TO_NATIVE(uv))); |
880 | XSRETURN(1); |
881 | } |
882 | |
14a976d6 |
883 | XS(XS_Internals_SvREADONLY) /* This is dangerous stuff. */ |
29569577 |
884 | { |
97aff369 |
885 | dVAR; |
29569577 |
886 | dXSARGS; |
c4420975 |
887 | SV * const sv = SvRV(ST(0)); |
58c0efa5 |
888 | PERL_UNUSED_ARG(cv); |
6867be6d |
889 | |
29569577 |
890 | if (items == 1) { |
891 | if (SvREADONLY(sv)) |
892 | XSRETURN_YES; |
893 | else |
894 | XSRETURN_NO; |
895 | } |
896 | else if (items == 2) { |
897 | if (SvTRUE(ST(1))) { |
898 | SvREADONLY_on(sv); |
899 | XSRETURN_YES; |
900 | } |
901 | else { |
14a976d6 |
902 | /* I hope you really know what you are doing. */ |
29569577 |
903 | SvREADONLY_off(sv); |
904 | XSRETURN_NO; |
905 | } |
906 | } |
14a976d6 |
907 | XSRETURN_UNDEF; /* Can't happen. */ |
29569577 |
908 | } |
909 | |
14a976d6 |
910 | XS(XS_Internals_SvREFCNT) /* This is dangerous stuff. */ |
29569577 |
911 | { |
97aff369 |
912 | dVAR; |
29569577 |
913 | dXSARGS; |
c4420975 |
914 | SV * const sv = SvRV(ST(0)); |
58c0efa5 |
915 | PERL_UNUSED_ARG(cv); |
6867be6d |
916 | |
29569577 |
917 | if (items == 1) |
14a976d6 |
918 | XSRETURN_IV(SvREFCNT(sv) - 1); /* Minus the ref created for us. */ |
29569577 |
919 | else if (items == 2) { |
14a976d6 |
920 | /* I hope you really know what you are doing. */ |
29569577 |
921 | SvREFCNT(sv) = SvIV(ST(1)); |
922 | XSRETURN_IV(SvREFCNT(sv)); |
923 | } |
14a976d6 |
924 | XSRETURN_UNDEF; /* Can't happen. */ |
29569577 |
925 | } |
926 | |
f044d0d1 |
927 | XS(XS_Internals_hv_clear_placehold) |
dfd4ef2f |
928 | { |
97aff369 |
929 | dVAR; |
dfd4ef2f |
930 | dXSARGS; |
58c0efa5 |
931 | PERL_UNUSED_ARG(cv); |
6867be6d |
932 | |
3540d4ce |
933 | if (items != 1) |
934 | Perl_croak(aTHX_ "Usage: UNIVERSAL::hv_clear_placeholders(hv)"); |
c4420975 |
935 | else { |
936 | HV * const hv = (HV *) SvRV(ST(0)); |
937 | hv_clear_placeholders(hv); |
938 | XSRETURN(0); |
939 | } |
dfd4ef2f |
940 | } |
39f7a870 |
941 | |
39cff0d9 |
942 | XS(XS_Regexp_DESTROY) |
943 | { |
96a5add6 |
944 | PERL_UNUSED_CONTEXT; |
53c1dcc0 |
945 | PERL_UNUSED_ARG(cv); |
39cff0d9 |
946 | } |
947 | |
39f7a870 |
948 | XS(XS_PerlIO_get_layers) |
949 | { |
97aff369 |
950 | dVAR; |
39f7a870 |
951 | dXSARGS; |
58c0efa5 |
952 | PERL_UNUSED_ARG(cv); |
39f7a870 |
953 | if (items < 1 || items % 2 == 0) |
954 | Perl_croak(aTHX_ "Usage: PerlIO_get_layers(filehandle[,args])"); |
5fef3b4a |
955 | #ifdef USE_PERLIO |
39f7a870 |
956 | { |
957 | SV * sv; |
958 | GV * gv; |
959 | IO * io; |
960 | bool input = TRUE; |
961 | bool details = FALSE; |
962 | |
963 | if (items > 1) { |
c4420975 |
964 | SV * const *svp; |
39f7a870 |
965 | for (svp = MARK + 2; svp <= SP; svp += 2) { |
c4420975 |
966 | SV * const * const varp = svp; |
967 | SV * const * const valp = svp + 1; |
39f7a870 |
968 | STRLEN klen; |
c4420975 |
969 | const char * const key = SvPV_const(*varp, klen); |
39f7a870 |
970 | |
971 | switch (*key) { |
972 | case 'i': |
973 | if (klen == 5 && memEQ(key, "input", 5)) { |
974 | input = SvTRUE(*valp); |
975 | break; |
976 | } |
977 | goto fail; |
978 | case 'o': |
979 | if (klen == 6 && memEQ(key, "output", 6)) { |
980 | input = !SvTRUE(*valp); |
981 | break; |
982 | } |
983 | goto fail; |
984 | case 'd': |
985 | if (klen == 7 && memEQ(key, "details", 7)) { |
986 | details = SvTRUE(*valp); |
987 | break; |
988 | } |
989 | goto fail; |
990 | default: |
991 | fail: |
992 | Perl_croak(aTHX_ |
993 | "get_layers: unknown argument '%s'", |
994 | key); |
995 | } |
996 | } |
997 | |
998 | SP -= (items - 1); |
999 | } |
1000 | |
1001 | sv = POPs; |
1002 | gv = (GV*)sv; |
1003 | |
1004 | if (!isGV(sv)) { |
1005 | if (SvROK(sv) && isGV(SvRV(sv))) |
1006 | gv = (GV*)SvRV(sv); |
671d49be |
1007 | else if (SvPOKp(sv)) |
f776e3cd |
1008 | gv = gv_fetchsv(sv, 0, SVt_PVIO); |
39f7a870 |
1009 | } |
1010 | |
1011 | if (gv && (io = GvIO(gv))) { |
1012 | dTARGET; |
c4420975 |
1013 | AV* const av = PerlIO_get_layers(aTHX_ input ? |
39f7a870 |
1014 | IoIFP(io) : IoOFP(io)); |
1015 | I32 i; |
c4420975 |
1016 | const I32 last = av_len(av); |
39f7a870 |
1017 | I32 nitem = 0; |
1018 | |
1019 | for (i = last; i >= 0; i -= 3) { |
c4420975 |
1020 | SV * const * const namsvp = av_fetch(av, i - 2, FALSE); |
1021 | SV * const * const argsvp = av_fetch(av, i - 1, FALSE); |
1022 | SV * const * const flgsvp = av_fetch(av, i, FALSE); |
39f7a870 |
1023 | |
c4420975 |
1024 | const bool namok = namsvp && *namsvp && SvPOK(*namsvp); |
1025 | const bool argok = argsvp && *argsvp && SvPOK(*argsvp); |
1026 | const bool flgok = flgsvp && *flgsvp && SvIOK(*flgsvp); |
39f7a870 |
1027 | |
1028 | if (details) { |
ec3bab8e |
1029 | XPUSHs(namok |
1030 | ? newSVpvn(SvPVX_const(*namsvp), SvCUR(*namsvp)) |
1031 | : &PL_sv_undef); |
1032 | XPUSHs(argok |
1033 | ? newSVpvn(SvPVX_const(*argsvp), SvCUR(*argsvp)) |
1034 | : &PL_sv_undef); |
39f7a870 |
1035 | if (flgok) |
1036 | XPUSHi(SvIVX(*flgsvp)); |
1037 | else |
1038 | XPUSHs(&PL_sv_undef); |
1039 | nitem += 3; |
1040 | } |
1041 | else { |
1042 | if (namok && argok) |
1043 | XPUSHs(Perl_newSVpvf(aTHX_ "%"SVf"(%"SVf")", |
be2597df |
1044 | SVfARG(*namsvp), |
1045 | SVfARG(*argsvp))); |
39f7a870 |
1046 | else if (namok) |
95b63a38 |
1047 | XPUSHs(Perl_newSVpvf(aTHX_ "%"SVf, |
be2597df |
1048 | SVfARG(*namsvp))); |
39f7a870 |
1049 | else |
1050 | XPUSHs(&PL_sv_undef); |
1051 | nitem++; |
1052 | if (flgok) { |
c4420975 |
1053 | const IV flags = SvIVX(*flgsvp); |
39f7a870 |
1054 | |
1055 | if (flags & PERLIO_F_UTF8) { |
396482e1 |
1056 | XPUSHs(newSVpvs("utf8")); |
39f7a870 |
1057 | nitem++; |
1058 | } |
1059 | } |
1060 | } |
1061 | } |
1062 | |
1063 | SvREFCNT_dec(av); |
1064 | |
1065 | XSRETURN(nitem); |
1066 | } |
1067 | } |
5fef3b4a |
1068 | #endif |
39f7a870 |
1069 | |
1070 | XSRETURN(0); |
1071 | } |
1072 | |
9a7034eb |
1073 | XS(XS_Internals_hash_seed) |
c910b28a |
1074 | { |
97aff369 |
1075 | dVAR; |
c85d3f85 |
1076 | /* Using dXSARGS would also have dITEM and dSP, |
1077 | * which define 2 unused local variables. */ |
557b887a |
1078 | dAXMARK; |
53c1dcc0 |
1079 | PERL_UNUSED_ARG(cv); |
ad73156c |
1080 | PERL_UNUSED_VAR(mark); |
81eaca17 |
1081 | XSRETURN_UV(PERL_HASH_SEED); |
c910b28a |
1082 | } |
1083 | |
008fb0c0 |
1084 | XS(XS_Internals_rehash_seed) |
8e90d776 |
1085 | { |
97aff369 |
1086 | dVAR; |
8e90d776 |
1087 | /* Using dXSARGS would also have dITEM and dSP, |
1088 | * which define 2 unused local variables. */ |
557b887a |
1089 | dAXMARK; |
53c1dcc0 |
1090 | PERL_UNUSED_ARG(cv); |
ad73156c |
1091 | PERL_UNUSED_VAR(mark); |
008fb0c0 |
1092 | XSRETURN_UV(PL_rehash_seed); |
8e90d776 |
1093 | } |
1094 | |
05619474 |
1095 | XS(XS_Internals_HvREHASH) /* Subject to change */ |
1096 | { |
97aff369 |
1097 | dVAR; |
05619474 |
1098 | dXSARGS; |
58c0efa5 |
1099 | PERL_UNUSED_ARG(cv); |
05619474 |
1100 | if (SvROK(ST(0))) { |
c4420975 |
1101 | const HV * const hv = (HV *) SvRV(ST(0)); |
05619474 |
1102 | if (items == 1 && SvTYPE(hv) == SVt_PVHV) { |
1103 | if (HvREHASH(hv)) |
1104 | XSRETURN_YES; |
1105 | else |
1106 | XSRETURN_NO; |
1107 | } |
1108 | } |
1109 | Perl_croak(aTHX_ "Internals::HvREHASH $hashref"); |
1110 | } |
241d1a3b |
1111 | |
e1234d8e |
1112 | XS(XS_Internals_inc_sub_generation) |
1113 | { |
97aff369 |
1114 | dVAR; |
e1234d8e |
1115 | /* Using dXSARGS would also have dITEM and dSP, |
1116 | * which define 2 unused local variables. */ |
1117 | dAXMARK; |
1118 | PERL_UNUSED_ARG(cv); |
1119 | PERL_UNUSED_VAR(mark); |
1120 | ++PL_sub_generation; |
1121 | XSRETURN_EMPTY; |
1122 | } |
1123 | |
80305961 |
1124 | XS(XS_re_is_regexp) |
1125 | { |
1126 | dVAR; |
1127 | dXSARGS; |
1128 | if (items != 1) |
1129 | Perl_croak(aTHX_ "Usage: %s(%s)", "re::is_regexp", "sv"); |
1130 | PERL_UNUSED_VAR(cv); /* -W */ |
1131 | PERL_UNUSED_VAR(ax); /* -Wall */ |
1132 | SP -= items; |
1133 | { |
1134 | SV * sv = ST(0); |
1135 | if ( Perl_get_re_arg( aTHX_ sv, 0, NULL ) ) |
1136 | { |
1137 | XSRETURN_YES; |
1138 | } else { |
1139 | XSRETURN_NO; |
1140 | } |
1141 | /* NOTREACHED */ |
1142 | PUTBACK; |
1143 | return; |
1144 | } |
1145 | } |
1146 | |
1147 | XS(XS_re_regname) |
1148 | { |
1149 | |
1150 | dVAR; |
1151 | dXSARGS; |
28d8d7f4 |
1152 | if (items < 1 || items > 2) |
1153 | Perl_croak(aTHX_ "Usage: %s(%s)", "re::regname", "name[, all ]"); |
80305961 |
1154 | PERL_UNUSED_VAR(cv); /* -W */ |
1155 | PERL_UNUSED_VAR(ax); /* -Wall */ |
1156 | SP -= items; |
1157 | { |
1158 | SV * sv = ST(0); |
80305961 |
1159 | SV * all; |
28d8d7f4 |
1160 | regexp *re = PL_curpm ? PM_GETRE(PL_curpm) : NULL; |
80305961 |
1161 | SV *bufs = NULL; |
1162 | |
1163 | if (items < 2) |
80305961 |
1164 | all = NULL; |
1165 | else { |
28d8d7f4 |
1166 | all = ST(1); |
80305961 |
1167 | } |
1168 | { |
80305961 |
1169 | if (SvPOK(sv) && re && re->paren_names) { |
1170 | bufs = CALLREG_NAMEDBUF(re,sv,all && SvTRUE(all)); |
1171 | if (bufs) { |
1172 | if (all && SvTRUE(all)) |
1173 | XPUSHs(newRV(bufs)); |
1174 | else |
1175 | XPUSHs(SvREFCNT_inc(bufs)); |
1176 | XSRETURN(1); |
1177 | } |
1178 | } |
1179 | XSRETURN_UNDEF; |
1180 | } |
1181 | PUTBACK; |
1182 | return; |
1183 | } |
1184 | } |
1185 | |
1186 | XS(XS_re_regnames) |
1187 | { |
1188 | dVAR; |
1189 | dXSARGS; |
28d8d7f4 |
1190 | if (items < 0 || items > 1) |
1191 | Perl_croak(aTHX_ "Usage: %s(%s)", "re::regnames", "[all]"); |
80305961 |
1192 | PERL_UNUSED_VAR(cv); /* -W */ |
1193 | PERL_UNUSED_VAR(ax); /* -Wall */ |
1194 | SP -= items; |
1195 | { |
80305961 |
1196 | SV * all; |
28d8d7f4 |
1197 | regexp *re = PL_curpm ? PM_GETRE(PL_curpm) : NULL; |
80305961 |
1198 | IV count = 0; |
1199 | |
1200 | if (items < 1) |
80305961 |
1201 | all = NULL; |
1202 | else { |
28d8d7f4 |
1203 | all = ST(0); |
80305961 |
1204 | } |
1205 | { |
80305961 |
1206 | if (re && re->paren_names) { |
1207 | HV *hv= re->paren_names; |
1208 | (void)hv_iterinit(hv); |
1209 | while (1) { |
1210 | HE *temphe = hv_iternext_flags(hv,0); |
1211 | if (temphe) { |
1212 | IV i; |
1213 | IV parno = 0; |
1214 | SV* sv_dat = HeVAL(temphe); |
1215 | I32 *nums = (I32*)SvPVX(sv_dat); |
1216 | for ( i = 0; i < SvIVX(sv_dat); i++ ) { |
1217 | if ((I32)(re->lastcloseparen) >= nums[i] && |
f0ab9afb |
1218 | re->offs[nums[i]].start != -1 && |
1219 | re->offs[nums[i]].end != -1) |
80305961 |
1220 | { |
1221 | parno = nums[i]; |
1222 | break; |
1223 | } |
1224 | } |
1225 | if (parno || (all && SvTRUE(all))) { |
1226 | STRLEN len; |
1227 | char *pv = HePV(temphe, len); |
1228 | if ( GIMME_V == G_ARRAY ) |
1229 | XPUSHs(newSVpvn(pv,len)); |
1230 | count++; |
1231 | } |
1232 | } else { |
1233 | break; |
1234 | } |
1235 | } |
1236 | } |
1237 | if ( GIMME_V == G_ARRAY ) |
1238 | XSRETURN(count); |
1239 | else |
1240 | XSRETURN_UNDEF; |
1241 | } |
1242 | PUTBACK; |
1243 | return; |
1244 | } |
1245 | } |
1246 | |
1247 | |
1248 | XS(XS_re_regnames_iterinit) |
1249 | { |
1250 | dVAR; |
1251 | dXSARGS; |
a2e78f72 |
1252 | if (items != 0) |
1253 | Perl_croak(aTHX_ "Usage: re::regnames_iterinit()"); |
80305961 |
1254 | PERL_UNUSED_VAR(cv); /* -W */ |
1255 | PERL_UNUSED_VAR(ax); /* -Wall */ |
1256 | SP -= items; |
1257 | { |
28d8d7f4 |
1258 | regexp *re = PL_curpm ? PM_GETRE(PL_curpm) : NULL; |
1259 | if (re && re->paren_names) { |
1260 | (void)hv_iterinit(re->paren_names); |
1261 | XPUSHs(newSViv(HvTOTALKEYS(re->paren_names))); |
1262 | } else { |
1263 | XSRETURN_UNDEF; |
1264 | } |
80305961 |
1265 | PUTBACK; |
1266 | return; |
1267 | } |
1268 | } |
1269 | |
1270 | |
1271 | XS(XS_re_regnames_iternext) |
1272 | { |
1273 | dVAR; |
1274 | dXSARGS; |
28d8d7f4 |
1275 | if (items < 0 || items > 1) |
1276 | Perl_croak(aTHX_ "Usage: %s(%s)", "re::regnames_iternext", "[all]"); |
80305961 |
1277 | PERL_UNUSED_VAR(cv); /* -W */ |
1278 | PERL_UNUSED_VAR(ax); /* -Wall */ |
1279 | SP -= items; |
1280 | { |
80305961 |
1281 | SV * all; |
28d8d7f4 |
1282 | regexp *re = PL_curpm ? PM_GETRE(PL_curpm) : NULL; |
80305961 |
1283 | |
1284 | if (items < 1) |
80305961 |
1285 | all = NULL; |
1286 | else { |
28d8d7f4 |
1287 | all = ST(0); |
80305961 |
1288 | } |
28d8d7f4 |
1289 | if (re && re->paren_names) { |
1290 | HV *hv= re->paren_names; |
1291 | while (1) { |
1292 | HE *temphe = hv_iternext_flags(hv,0); |
1293 | if (temphe) { |
1294 | IV i; |
1295 | IV parno = 0; |
1296 | SV* sv_dat = HeVAL(temphe); |
1297 | I32 *nums = (I32*)SvPVX(sv_dat); |
1298 | for ( i = 0; i < SvIVX(sv_dat); i++ ) { |
1299 | if ((I32)(re->lastcloseparen) >= nums[i] && |
f0ab9afb |
1300 | re->offs[nums[i]].start != -1 && |
1301 | re->offs[nums[i]].end != -1) |
28d8d7f4 |
1302 | { |
1303 | parno = nums[i]; |
1304 | break; |
80305961 |
1305 | } |
80305961 |
1306 | } |
28d8d7f4 |
1307 | if (parno || (all && SvTRUE(all))) { |
1308 | STRLEN len; |
1309 | char *pv = HePV(temphe, len); |
1310 | XPUSHs(newSVpvn(pv,len)); |
1311 | XSRETURN(1); |
1312 | } |
1313 | } else { |
1314 | break; |
80305961 |
1315 | } |
1316 | } |
28d8d7f4 |
1317 | } |
1318 | XSRETURN_UNDEF; |
80305961 |
1319 | PUTBACK; |
1320 | return; |
1321 | } |
1322 | } |
1323 | |
1324 | |
1325 | XS(XS_re_regnames_count) |
1326 | { |
28d8d7f4 |
1327 | regexp *re = PL_curpm ? PM_GETRE(PL_curpm) : NULL; |
80305961 |
1328 | dVAR; |
1329 | dXSARGS; |
1330 | |
28d8d7f4 |
1331 | if (items != 0) |
1332 | Perl_croak(aTHX_ "Usage: %s(%s)", "re::regnames_count", ""); |
80305961 |
1333 | PERL_UNUSED_VAR(cv); /* -W */ |
1334 | PERL_UNUSED_VAR(ax); /* -Wall */ |
1335 | SP -= items; |
28d8d7f4 |
1336 | |
80305961 |
1337 | if (re && re->paren_names) { |
1338 | XPUSHs(newSViv(HvTOTALKEYS(re->paren_names))); |
1339 | } else { |
1340 | XSRETURN_UNDEF; |
1341 | } |
1342 | PUTBACK; |
1343 | return; |
1344 | } |
1345 | |
1346 | |
241d1a3b |
1347 | /* |
1348 | * Local variables: |
1349 | * c-indentation-style: bsd |
1350 | * c-basic-offset: 4 |
1351 | * indent-tabs-mode: t |
1352 | * End: |
1353 | * |
37442d52 |
1354 | * ex: set ts=8 sts=4 sw=4 noet: |
1355 | */ |