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; |
e1a479c5 |
39 | AV* stash_linear_isa; |
40 | SV** svp; |
bfcb3514 |
41 | const char *hvname; |
e1a479c5 |
42 | I32 items; |
43 | PERL_UNUSED_ARG(len); |
44 | PERL_UNUSED_ARG(level); |
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 | |
e1a479c5 |
59 | stash_linear_isa = mro_get_linear_isa(stash); |
60 | svp = AvARRAY(stash_linear_isa) + 1; |
61 | items = AvFILLp(stash_linear_isa); |
62 | while (items--) { |
63 | SV* const basename_sv = *svp++; |
64 | HV* basestash = gv_stashsv(basename_sv, 0); |
65 | if (!basestash) { |
66 | if (ckWARN(WARN_MISC)) |
67 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), |
68 | "Can't locate package %"SVf" for the parents of %s", |
69 | SVfARG(basename_sv), hvname); |
70 | continue; |
46e4b22b |
71 | } |
e1a479c5 |
72 | if(name_stash == basestash || strEQ(name, SvPVX(basename_sv))) |
73 | return TRUE; |
6d4a7be2 |
74 | } |
75 | |
a9ec700e |
76 | return FALSE; |
6d4a7be2 |
77 | } |
78 | |
954c1994 |
79 | /* |
ccfc67b7 |
80 | =head1 SV Manipulation Functions |
81 | |
954c1994 |
82 | =for apidoc sv_derived_from |
83 | |
6885da0e |
84 | Returns a boolean indicating whether the SV is derived from the specified class |
85 | I<at the C level>. To check derivation at the Perl level, call C<isa()> as a |
86 | normal Perl method. |
954c1994 |
87 | |
88 | =cut |
89 | */ |
90 | |
55497cff |
91 | bool |
864dbfa3 |
92 | Perl_sv_derived_from(pTHX_ SV *sv, const char *name) |
55497cff |
93 | { |
97aff369 |
94 | dVAR; |
0b6f4f5c |
95 | HV *stash; |
46e4b22b |
96 | |
5b295bef |
97 | SvGETMAGIC(sv); |
55497cff |
98 | |
99 | if (SvROK(sv)) { |
0b6f4f5c |
100 | const char *type; |
55497cff |
101 | sv = SvRV(sv); |
102 | type = sv_reftype(sv,0); |
0b6f4f5c |
103 | if (type && strEQ(type,name)) |
104 | return TRUE; |
105 | stash = SvOBJECT(sv) ? SvSTASH(sv) : NULL; |
55497cff |
106 | } |
107 | else { |
da51bb9b |
108 | stash = gv_stashsv(sv, 0); |
55497cff |
109 | } |
46e4b22b |
110 | |
0b6f4f5c |
111 | if (stash) { |
da51bb9b |
112 | HV * const name_stash = gv_stashpv(name, 0); |
a9ec700e |
113 | return isa_lookup(stash, name, name_stash, strlen(name), 0); |
0b6f4f5c |
114 | } |
115 | else |
116 | return FALSE; |
301daebc |
117 | |
55497cff |
118 | } |
119 | |
cbc021f9 |
120 | /* |
121 | =for apidoc sv_does |
122 | |
123 | Returns a boolean indicating whether the SV performs a specific, named role. |
124 | The SV can be a Perl object or the name of a Perl class. |
125 | |
126 | =cut |
127 | */ |
128 | |
1b026014 |
129 | #include "XSUB.h" |
130 | |
cbc021f9 |
131 | bool |
132 | Perl_sv_does(pTHX_ SV *sv, const char *name) |
133 | { |
134 | const char *classname; |
135 | bool does_it; |
59e7186f |
136 | SV *methodname; |
cbc021f9 |
137 | |
138 | dSP; |
139 | ENTER; |
140 | SAVETMPS; |
141 | |
142 | SvGETMAGIC(sv); |
143 | |
144 | if (!SvOK(sv) || !(SvROK(sv) || (SvPOK(sv) && SvCUR(sv)) |
145 | || (SvGMAGICAL(sv) && SvPOKp(sv) && SvCUR(sv)))) |
146 | return FALSE; |
147 | |
148 | if (sv_isobject(sv)) { |
149 | classname = sv_reftype(SvRV(sv),TRUE); |
150 | } else { |
94707740 |
151 | classname = SvPV_nolen(sv); |
cbc021f9 |
152 | } |
153 | |
154 | if (strEQ(name,classname)) |
155 | return TRUE; |
156 | |
157 | PUSHMARK(SP); |
158 | XPUSHs(sv); |
159 | XPUSHs(sv_2mortal(newSVpv(name, 0))); |
160 | PUTBACK; |
161 | |
59e7186f |
162 | methodname = sv_2mortal(newSVpv("isa", 0)); |
163 | /* ugly hack: use the SvSCREAM flag so S_method_common |
164 | * can figure out we're calling DOES() and not isa(), |
165 | * and report eventual errors correctly. --rgs */ |
166 | SvSCREAM_on(methodname); |
167 | call_sv(methodname, G_SCALAR | G_METHOD); |
cbc021f9 |
168 | SPAGAIN; |
169 | |
170 | does_it = SvTRUE( TOPs ); |
171 | FREETMPS; |
172 | LEAVE; |
173 | |
174 | return does_it; |
175 | } |
176 | |
80305961 |
177 | regexp * |
178 | Perl_get_re_arg( pTHX_ SV *sv, U32 flags, MAGIC **mgp) { |
179 | MAGIC *mg; |
180 | if (sv) { |
181 | if (SvMAGICAL(sv)) |
182 | mg_get(sv); |
183 | if (SvROK(sv) && |
184 | (sv = (SV*)SvRV(sv)) && /* assign deliberate */ |
185 | SvTYPE(sv) == SVt_PVMG && |
186 | (mg = mg_find(sv, PERL_MAGIC_qr))) /* assign deliberate */ |
187 | { |
188 | if (mgp) *mgp = mg; |
189 | return (regexp *)mg->mg_obj; |
190 | } |
191 | } |
192 | if (mgp) *mgp = NULL; |
193 | return ((flags && PL_curpm) ? PM_GETRE(PL_curpm) : NULL); |
194 | } |
195 | |
196 | |
27da23d5 |
197 | PERL_XS_EXPORT_C void XS_UNIVERSAL_isa(pTHX_ CV *cv); |
198 | PERL_XS_EXPORT_C void XS_UNIVERSAL_can(pTHX_ CV *cv); |
cbc021f9 |
199 | PERL_XS_EXPORT_C void XS_UNIVERSAL_DOES(pTHX_ CV *cv); |
27da23d5 |
200 | PERL_XS_EXPORT_C void XS_UNIVERSAL_VERSION(pTHX_ CV *cv); |
439cb1c4 |
201 | XS(XS_version_new); |
202 | XS(XS_version_stringify); |
203 | XS(XS_version_numify); |
9137345a |
204 | XS(XS_version_normal); |
439cb1c4 |
205 | XS(XS_version_vcmp); |
206 | XS(XS_version_boolean); |
2dfd8427 |
207 | #ifdef HASATTRIBUTE_NORETURN |
208 | XS(XS_version_noop) __attribute__noreturn__; |
209 | #else |
439cb1c4 |
210 | XS(XS_version_noop); |
2dfd8427 |
211 | #endif |
c8d69e4a |
212 | XS(XS_version_is_alpha); |
137d6fc0 |
213 | XS(XS_version_qv); |
8800c35a |
214 | XS(XS_utf8_is_utf8); |
1b026014 |
215 | XS(XS_utf8_valid); |
216 | XS(XS_utf8_encode); |
217 | XS(XS_utf8_decode); |
218 | XS(XS_utf8_upgrade); |
219 | XS(XS_utf8_downgrade); |
220 | XS(XS_utf8_unicode_to_native); |
221 | XS(XS_utf8_native_to_unicode); |
29569577 |
222 | XS(XS_Internals_SvREADONLY); |
223 | XS(XS_Internals_SvREFCNT); |
f044d0d1 |
224 | XS(XS_Internals_hv_clear_placehold); |
39f7a870 |
225 | XS(XS_PerlIO_get_layers); |
39cff0d9 |
226 | XS(XS_Regexp_DESTROY); |
9a7034eb |
227 | XS(XS_Internals_hash_seed); |
008fb0c0 |
228 | XS(XS_Internals_rehash_seed); |
05619474 |
229 | XS(XS_Internals_HvREHASH); |
e1234d8e |
230 | XS(XS_Internals_inc_sub_generation); |
80305961 |
231 | XS(XS_re_is_regexp); |
232 | XS(XS_re_regname); |
233 | XS(XS_re_regnames); |
234 | XS(XS_re_regnames_iterinit); |
235 | XS(XS_re_regnames_iternext); |
236 | XS(XS_re_regnames_count); |
0cb96387 |
237 | |
238 | void |
239 | Perl_boot_core_UNIVERSAL(pTHX) |
240 | { |
97aff369 |
241 | dVAR; |
157e3fc8 |
242 | static const char file[] = __FILE__; |
0cb96387 |
243 | |
244 | newXS("UNIVERSAL::isa", XS_UNIVERSAL_isa, file); |
245 | newXS("UNIVERSAL::can", XS_UNIVERSAL_can, file); |
cbc021f9 |
246 | newXS("UNIVERSAL::DOES", XS_UNIVERSAL_DOES, file); |
0cb96387 |
247 | newXS("UNIVERSAL::VERSION", XS_UNIVERSAL_VERSION, file); |
439cb1c4 |
248 | { |
ad63d80f |
249 | /* register the overloading (type 'A') magic */ |
250 | PL_amagic_generation++; |
439cb1c4 |
251 | /* Make it findable via fetchmethod */ |
be2ebcad |
252 | newXS("version::()", XS_version_noop, file); |
439cb1c4 |
253 | newXS("version::new", XS_version_new, file); |
254 | newXS("version::(\"\"", XS_version_stringify, file); |
255 | newXS("version::stringify", XS_version_stringify, file); |
256 | newXS("version::(0+", XS_version_numify, file); |
257 | newXS("version::numify", XS_version_numify, file); |
9137345a |
258 | newXS("version::normal", XS_version_normal, file); |
439cb1c4 |
259 | newXS("version::(cmp", XS_version_vcmp, file); |
260 | newXS("version::(<=>", XS_version_vcmp, file); |
261 | newXS("version::vcmp", XS_version_vcmp, file); |
262 | newXS("version::(bool", XS_version_boolean, file); |
263 | newXS("version::boolean", XS_version_boolean, file); |
264 | newXS("version::(nomethod", XS_version_noop, file); |
265 | newXS("version::noop", XS_version_noop, file); |
c8d69e4a |
266 | newXS("version::is_alpha", XS_version_is_alpha, file); |
137d6fc0 |
267 | newXS("version::qv", XS_version_qv, file); |
439cb1c4 |
268 | } |
8800c35a |
269 | newXS("utf8::is_utf8", XS_utf8_is_utf8, file); |
1b026014 |
270 | newXS("utf8::valid", XS_utf8_valid, file); |
271 | newXS("utf8::encode", XS_utf8_encode, file); |
272 | newXS("utf8::decode", XS_utf8_decode, file); |
273 | newXS("utf8::upgrade", XS_utf8_upgrade, file); |
274 | newXS("utf8::downgrade", XS_utf8_downgrade, file); |
275 | newXS("utf8::native_to_unicode", XS_utf8_native_to_unicode, file); |
276 | newXS("utf8::unicode_to_native", XS_utf8_unicode_to_native, file); |
29569577 |
277 | newXSproto("Internals::SvREADONLY",XS_Internals_SvREADONLY, file, "\\[$%@];$"); |
278 | newXSproto("Internals::SvREFCNT",XS_Internals_SvREFCNT, file, "\\[$%@];$"); |
dfd4ef2f |
279 | newXSproto("Internals::hv_clear_placeholders", |
f044d0d1 |
280 | XS_Internals_hv_clear_placehold, file, "\\%"); |
9d569fce |
281 | newXSproto("PerlIO::get_layers", |
282 | XS_PerlIO_get_layers, file, "*;@"); |
39cff0d9 |
283 | newXS("Regexp::DESTROY", XS_Regexp_DESTROY, file); |
9a7034eb |
284 | newXSproto("Internals::hash_seed",XS_Internals_hash_seed, file, ""); |
008fb0c0 |
285 | newXSproto("Internals::rehash_seed",XS_Internals_rehash_seed, file, ""); |
05619474 |
286 | newXSproto("Internals::HvREHASH", XS_Internals_HvREHASH, file, "\\%"); |
e1234d8e |
287 | newXSproto("Internals::inc_sub_generation",XS_Internals_inc_sub_generation, |
288 | file, ""); |
80305961 |
289 | newXSproto("re::is_regexp", XS_re_is_regexp, file, "$"); |
28d8d7f4 |
290 | newXSproto("re::regname", XS_re_regname, file, ";$$"); |
291 | newXSproto("re::regnames", XS_re_regnames, file, ";$"); |
292 | newXSproto("re::regnames_iterinit", XS_re_regnames_iterinit, file, ""); |
293 | newXSproto("re::regnames_iternext", XS_re_regnames_iternext, file, ";$"); |
294 | newXSproto("re::regnames_count", XS_re_regnames_count, file, ""); |
0cb96387 |
295 | } |
296 | |
55497cff |
297 | |
6d4a7be2 |
298 | XS(XS_UNIVERSAL_isa) |
299 | { |
97aff369 |
300 | dVAR; |
6d4a7be2 |
301 | dXSARGS; |
58c0efa5 |
302 | PERL_UNUSED_ARG(cv); |
6d4a7be2 |
303 | |
304 | if (items != 2) |
cea2e8a9 |
305 | Perl_croak(aTHX_ "Usage: UNIVERSAL::isa(reference, kind)"); |
c4420975 |
306 | else { |
307 | SV * const sv = ST(0); |
308 | const char *name; |
6d4a7be2 |
309 | |
c4420975 |
310 | SvGETMAGIC(sv); |
d3f7f2b2 |
311 | |
c4420975 |
312 | if (!SvOK(sv) || !(SvROK(sv) || (SvPOK(sv) && SvCUR(sv)) |
313 | || (SvGMAGICAL(sv) && SvPOKp(sv) && SvCUR(sv)))) |
314 | XSRETURN_UNDEF; |
f8f70380 |
315 | |
c4420975 |
316 | name = SvPV_nolen_const(ST(1)); |
6d4a7be2 |
317 | |
c4420975 |
318 | ST(0) = boolSV(sv_derived_from(sv, name)); |
319 | XSRETURN(1); |
320 | } |
6d4a7be2 |
321 | } |
322 | |
6d4a7be2 |
323 | XS(XS_UNIVERSAL_can) |
324 | { |
97aff369 |
325 | dVAR; |
6d4a7be2 |
326 | dXSARGS; |
327 | SV *sv; |
6867be6d |
328 | const char *name; |
6d4a7be2 |
329 | SV *rv; |
6f08146e |
330 | HV *pkg = NULL; |
58c0efa5 |
331 | PERL_UNUSED_ARG(cv); |
6d4a7be2 |
332 | |
333 | if (items != 2) |
cea2e8a9 |
334 | Perl_croak(aTHX_ "Usage: UNIVERSAL::can(object-ref, method)"); |
6d4a7be2 |
335 | |
336 | sv = ST(0); |
f8f70380 |
337 | |
5b295bef |
338 | SvGETMAGIC(sv); |
d3f7f2b2 |
339 | |
253ecd6d |
340 | if (!SvOK(sv) || !(SvROK(sv) || (SvPOK(sv) && SvCUR(sv)) |
341 | || (SvGMAGICAL(sv) && SvPOKp(sv) && SvCUR(sv)))) |
f8f70380 |
342 | XSRETURN_UNDEF; |
343 | |
0510663f |
344 | name = SvPV_nolen_const(ST(1)); |
3280af22 |
345 | rv = &PL_sv_undef; |
6d4a7be2 |
346 | |
46e4b22b |
347 | if (SvROK(sv)) { |
6f08146e |
348 | sv = (SV*)SvRV(sv); |
46e4b22b |
349 | if (SvOBJECT(sv)) |
6f08146e |
350 | pkg = SvSTASH(sv); |
351 | } |
352 | else { |
da51bb9b |
353 | pkg = gv_stashsv(sv, 0); |
6f08146e |
354 | } |
355 | |
356 | if (pkg) { |
c4420975 |
357 | GV * const gv = gv_fetchmethod_autoload(pkg, name, FALSE); |
dc848c6f |
358 | if (gv && isGV(gv)) |
359 | rv = sv_2mortal(newRV((SV*)GvCV(gv))); |
6d4a7be2 |
360 | } |
361 | |
362 | ST(0) = rv; |
363 | XSRETURN(1); |
364 | } |
365 | |
cbc021f9 |
366 | XS(XS_UNIVERSAL_DOES) |
367 | { |
368 | dVAR; |
369 | dXSARGS; |
58c0efa5 |
370 | PERL_UNUSED_ARG(cv); |
cbc021f9 |
371 | |
372 | if (items != 2) |
26be3db7 |
373 | Perl_croak(aTHX_ "Usage: invocant->DOES(kind)"); |
cbc021f9 |
374 | else { |
375 | SV * const sv = ST(0); |
376 | const char *name; |
377 | |
378 | name = SvPV_nolen_const(ST(1)); |
379 | if (sv_does( sv, name )) |
380 | XSRETURN_YES; |
381 | |
382 | XSRETURN_NO; |
383 | } |
384 | } |
385 | |
6d4a7be2 |
386 | XS(XS_UNIVERSAL_VERSION) |
387 | { |
97aff369 |
388 | dVAR; |
6d4a7be2 |
389 | dXSARGS; |
390 | HV *pkg; |
391 | GV **gvp; |
392 | GV *gv; |
393 | SV *sv; |
e1ec3a88 |
394 | const char *undef; |
58c0efa5 |
395 | PERL_UNUSED_ARG(cv); |
6d4a7be2 |
396 | |
1571675a |
397 | if (SvROK(ST(0))) { |
6d4a7be2 |
398 | sv = (SV*)SvRV(ST(0)); |
1571675a |
399 | if (!SvOBJECT(sv)) |
cea2e8a9 |
400 | Perl_croak(aTHX_ "Cannot find version of an unblessed reference"); |
6d4a7be2 |
401 | pkg = SvSTASH(sv); |
402 | } |
403 | else { |
da51bb9b |
404 | pkg = gv_stashsv(ST(0), 0); |
6d4a7be2 |
405 | } |
406 | |
4608196e |
407 | gvp = pkg ? (GV**)hv_fetchs(pkg, "VERSION", FALSE) : NULL; |
6d4a7be2 |
408 | |
0008872a |
409 | if (gvp && isGV(gv = *gvp) && (sv = GvSV(gv)) && SvOK(sv)) { |
c4420975 |
410 | SV * const nsv = sv_newmortal(); |
6d4a7be2 |
411 | sv_setsv(nsv, sv); |
412 | sv = nsv; |
137d6fc0 |
413 | if ( !sv_derived_from(sv, "version")) |
ac0e6a2f |
414 | upg_version(sv, FALSE); |
c445ea15 |
415 | undef = NULL; |
6d4a7be2 |
416 | } |
417 | else { |
3280af22 |
418 | sv = (SV*)&PL_sv_undef; |
6d4a7be2 |
419 | undef = "(undef)"; |
420 | } |
421 | |
1571675a |
422 | if (items > 1) { |
1571675a |
423 | SV *req = ST(1); |
424 | |
62658f4d |
425 | if (undef) { |
bfcb3514 |
426 | if (pkg) { |
c4420975 |
427 | const char * const name = HvNAME_get(pkg); |
a3b680e6 |
428 | Perl_croak(aTHX_ |
bfcb3514 |
429 | "%s does not define $%s::VERSION--version check failed", |
430 | name, name); |
431 | } else { |
a3b680e6 |
432 | Perl_croak(aTHX_ |
433 | "%s defines neither package nor VERSION--version check failed", |
0510663f |
434 | SvPVx_nolen_const(ST(0)) ); |
62658f4d |
435 | } |
436 | } |
ad63d80f |
437 | |
137d6fc0 |
438 | if ( !sv_derived_from(req, "version")) { |
439 | /* req may very well be R/O, so create a new object */ |
ac0e6a2f |
440 | req = sv_2mortal( new_version(req) ); |
137d6fc0 |
441 | } |
1571675a |
442 | |
ac0e6a2f |
443 | if ( vcmp( req, sv ) > 0 ) { |
444 | if ( hv_exists((HV*)SvRV(req), "qv", 2 ) ) { |
445 | Perl_croak(aTHX_ "%s version %"SVf" required--" |
446 | "this is only version %"SVf"", HvNAME_get(pkg), |
be2597df |
447 | SVfARG(vnormal(req)), |
be2597df |
448 | SVfARG(vnormal(sv))); |
ac0e6a2f |
449 | } else { |
450 | Perl_croak(aTHX_ "%s version %"SVf" required--" |
451 | "this is only version %"SVf"", HvNAME_get(pkg), |
452 | SVfARG(vnumify(req)), |
453 | SVfARG(vnumify(sv))); |
454 | } |
455 | } |
456 | |
2d8e6c8d |
457 | } |
6d4a7be2 |
458 | |
2b140d5b |
459 | if ( SvOK(sv) && sv_derived_from(sv, "version") ) { |
b38a9dc5 |
460 | ST(0) = vnumify(sv); |
13f8f398 |
461 | } else { |
462 | ST(0) = sv; |
b38a9dc5 |
463 | } |
6d4a7be2 |
464 | |
465 | XSRETURN(1); |
466 | } |
467 | |
439cb1c4 |
468 | XS(XS_version_new) |
469 | { |
97aff369 |
470 | dVAR; |
439cb1c4 |
471 | dXSARGS; |
58c0efa5 |
472 | PERL_UNUSED_ARG(cv); |
129318bd |
473 | if (items > 3) |
439cb1c4 |
474 | Perl_croak(aTHX_ "Usage: version::new(class, version)"); |
475 | SP -= items; |
476 | { |
137d6fc0 |
477 | SV *vs = ST(1); |
478 | SV *rv; |
c4420975 |
479 | const char * const classname = |
480 | sv_isobject(ST(0)) /* get the class if called as an object method */ |
481 | ? HvNAME(SvSTASH(SvRV(ST(0)))) |
482 | : (char *)SvPV_nolen(ST(0)); |
9137345a |
483 | |
92dcf8ce |
484 | if ( items == 1 || vs == &PL_sv_undef ) { /* no param or explicit undef */ |
485 | /* create empty object */ |
486 | vs = sv_newmortal(); |
487 | sv_setpvn(vs,"",0); |
9137345a |
488 | } |
489 | else if ( items == 3 ) { |
490 | vs = sv_newmortal(); |
cfd0369c |
491 | Perl_sv_setpvf(aTHX_ vs,"v%s",SvPV_nolen_const(ST(2))); |
129318bd |
492 | } |
439cb1c4 |
493 | |
137d6fc0 |
494 | rv = new_version(vs); |
0723351e |
495 | if ( strcmp(classname,"version") != 0 ) /* inherited new() */ |
da51bb9b |
496 | sv_bless(rv, gv_stashpv(classname, GV_ADD)); |
137d6fc0 |
497 | |
498 | PUSHs(sv_2mortal(rv)); |
439cb1c4 |
499 | PUTBACK; |
500 | return; |
501 | } |
502 | } |
503 | |
504 | XS(XS_version_stringify) |
505 | { |
97aff369 |
506 | dVAR; |
41be1fbd |
507 | dXSARGS; |
58c0efa5 |
508 | PERL_UNUSED_ARG(cv); |
41be1fbd |
509 | if (items < 1) |
510 | Perl_croak(aTHX_ "Usage: version::stringify(lobj, ...)"); |
511 | SP -= items; |
512 | { |
7452cf6a |
513 | SV * lobj; |
41be1fbd |
514 | |
515 | if (sv_derived_from(ST(0), "version")) { |
9137345a |
516 | lobj = SvRV(ST(0)); |
41be1fbd |
517 | } |
518 | else |
519 | Perl_croak(aTHX_ "lobj is not of type version"); |
520 | |
137d6fc0 |
521 | PUSHs(sv_2mortal(vstringify(lobj))); |
41be1fbd |
522 | |
523 | PUTBACK; |
524 | return; |
525 | } |
439cb1c4 |
526 | } |
527 | |
528 | XS(XS_version_numify) |
529 | { |
97aff369 |
530 | dVAR; |
41be1fbd |
531 | dXSARGS; |
58c0efa5 |
532 | PERL_UNUSED_ARG(cv); |
41be1fbd |
533 | if (items < 1) |
534 | Perl_croak(aTHX_ "Usage: version::numify(lobj, ...)"); |
535 | SP -= items; |
536 | { |
7452cf6a |
537 | SV * lobj; |
41be1fbd |
538 | |
539 | if (sv_derived_from(ST(0), "version")) { |
9137345a |
540 | lobj = SvRV(ST(0)); |
41be1fbd |
541 | } |
542 | else |
543 | Perl_croak(aTHX_ "lobj is not of type version"); |
544 | |
137d6fc0 |
545 | PUSHs(sv_2mortal(vnumify(lobj))); |
41be1fbd |
546 | |
547 | PUTBACK; |
548 | return; |
549 | } |
439cb1c4 |
550 | } |
551 | |
9137345a |
552 | XS(XS_version_normal) |
553 | { |
97aff369 |
554 | dVAR; |
9137345a |
555 | dXSARGS; |
58c0efa5 |
556 | PERL_UNUSED_ARG(cv); |
9137345a |
557 | if (items < 1) |
558 | Perl_croak(aTHX_ "Usage: version::normal(lobj, ...)"); |
559 | SP -= items; |
560 | { |
7452cf6a |
561 | SV * lobj; |
9137345a |
562 | |
563 | if (sv_derived_from(ST(0), "version")) { |
564 | lobj = SvRV(ST(0)); |
565 | } |
566 | else |
567 | Perl_croak(aTHX_ "lobj is not of type version"); |
568 | |
569 | PUSHs(sv_2mortal(vnormal(lobj))); |
570 | |
571 | PUTBACK; |
572 | return; |
573 | } |
574 | } |
575 | |
439cb1c4 |
576 | XS(XS_version_vcmp) |
577 | { |
97aff369 |
578 | dVAR; |
41be1fbd |
579 | dXSARGS; |
58c0efa5 |
580 | PERL_UNUSED_ARG(cv); |
41be1fbd |
581 | if (items < 1) |
582 | Perl_croak(aTHX_ "Usage: version::vcmp(lobj, ...)"); |
583 | SP -= items; |
584 | { |
7452cf6a |
585 | SV * lobj; |
41be1fbd |
586 | |
587 | if (sv_derived_from(ST(0), "version")) { |
9137345a |
588 | lobj = SvRV(ST(0)); |
41be1fbd |
589 | } |
590 | else |
591 | Perl_croak(aTHX_ "lobj is not of type version"); |
592 | |
593 | { |
594 | SV *rs; |
595 | SV *rvs; |
596 | SV * robj = ST(1); |
7452cf6a |
597 | const IV swap = (IV)SvIV(ST(2)); |
41be1fbd |
598 | |
599 | if ( ! sv_derived_from(robj, "version") ) |
600 | { |
601 | robj = new_version(robj); |
602 | } |
603 | rvs = SvRV(robj); |
604 | |
605 | if ( swap ) |
606 | { |
607 | rs = newSViv(vcmp(rvs,lobj)); |
608 | } |
609 | else |
610 | { |
611 | rs = newSViv(vcmp(lobj,rvs)); |
612 | } |
613 | |
137d6fc0 |
614 | PUSHs(sv_2mortal(rs)); |
41be1fbd |
615 | } |
616 | |
617 | PUTBACK; |
618 | return; |
619 | } |
439cb1c4 |
620 | } |
621 | |
622 | XS(XS_version_boolean) |
623 | { |
97aff369 |
624 | dVAR; |
625 | dXSARGS; |
58c0efa5 |
626 | PERL_UNUSED_ARG(cv); |
97aff369 |
627 | if (items < 1) |
628 | Perl_croak(aTHX_ "Usage: version::boolean(lobj, ...)"); |
629 | SP -= items; |
c4420975 |
630 | if (sv_derived_from(ST(0), "version")) { |
631 | SV * const lobj = SvRV(ST(0)); |
396482e1 |
632 | SV * const rs = newSViv( vcmp(lobj,new_version(newSVpvs("0"))) ); |
c4420975 |
633 | PUSHs(sv_2mortal(rs)); |
634 | PUTBACK; |
635 | return; |
636 | } |
637 | else |
638 | Perl_croak(aTHX_ "lobj is not of type version"); |
439cb1c4 |
639 | } |
640 | |
641 | XS(XS_version_noop) |
642 | { |
97aff369 |
643 | dVAR; |
2dfd8427 |
644 | dXSARGS; |
58c0efa5 |
645 | PERL_UNUSED_ARG(cv); |
2dfd8427 |
646 | if (items < 1) |
647 | Perl_croak(aTHX_ "Usage: version::noop(lobj, ...)"); |
648 | if (sv_derived_from(ST(0), "version")) |
649 | Perl_croak(aTHX_ "operation not supported with version object"); |
650 | else |
651 | Perl_croak(aTHX_ "lobj is not of type version"); |
652 | #ifndef HASATTRIBUTE_NORETURN |
653 | XSRETURN_EMPTY; |
654 | #endif |
439cb1c4 |
655 | } |
656 | |
c8d69e4a |
657 | XS(XS_version_is_alpha) |
658 | { |
97aff369 |
659 | dVAR; |
c8d69e4a |
660 | dXSARGS; |
58c0efa5 |
661 | PERL_UNUSED_ARG(cv); |
c8d69e4a |
662 | if (items != 1) |
663 | Perl_croak(aTHX_ "Usage: version::is_alpha(lobj)"); |
664 | SP -= items; |
c4420975 |
665 | if (sv_derived_from(ST(0), "version")) { |
666 | SV * const lobj = ST(0); |
667 | if ( hv_exists((HV*)SvRV(lobj), "alpha", 5 ) ) |
668 | XSRETURN_YES; |
669 | else |
670 | XSRETURN_NO; |
c8d69e4a |
671 | PUTBACK; |
672 | return; |
673 | } |
c4420975 |
674 | else |
675 | Perl_croak(aTHX_ "lobj is not of type version"); |
c8d69e4a |
676 | } |
677 | |
137d6fc0 |
678 | XS(XS_version_qv) |
679 | { |
97aff369 |
680 | dVAR; |
137d6fc0 |
681 | dXSARGS; |
58c0efa5 |
682 | PERL_UNUSED_ARG(cv); |
137d6fc0 |
683 | if (items != 1) |
684 | Perl_croak(aTHX_ "Usage: version::qv(ver)"); |
685 | SP -= items; |
686 | { |
687 | SV * ver = ST(0); |
c4420975 |
688 | if ( !SvVOK(ver) ) { /* only need to do with if not already v-string */ |
ac0e6a2f |
689 | SV * const rv = sv_newmortal(); |
690 | sv_setsv(rv,ver); /* make a duplicate */ |
691 | upg_version(rv, TRUE); |
692 | PUSHs(rv); |
137d6fc0 |
693 | } |
694 | else |
695 | { |
696 | PUSHs(sv_2mortal(new_version(ver))); |
697 | } |
698 | |
699 | PUTBACK; |
700 | return; |
701 | } |
702 | } |
703 | |
8800c35a |
704 | XS(XS_utf8_is_utf8) |
705 | { |
97aff369 |
706 | dVAR; |
41be1fbd |
707 | dXSARGS; |
58c0efa5 |
708 | PERL_UNUSED_ARG(cv); |
41be1fbd |
709 | if (items != 1) |
710 | Perl_croak(aTHX_ "Usage: utf8::is_utf8(sv)"); |
c4420975 |
711 | else { |
712 | const SV * const sv = ST(0); |
713 | if (SvUTF8(sv)) |
714 | XSRETURN_YES; |
715 | else |
716 | XSRETURN_NO; |
41be1fbd |
717 | } |
718 | XSRETURN_EMPTY; |
8800c35a |
719 | } |
720 | |
1b026014 |
721 | XS(XS_utf8_valid) |
722 | { |
97aff369 |
723 | dVAR; |
41be1fbd |
724 | dXSARGS; |
58c0efa5 |
725 | PERL_UNUSED_ARG(cv); |
41be1fbd |
726 | if (items != 1) |
727 | Perl_croak(aTHX_ "Usage: utf8::valid(sv)"); |
c4420975 |
728 | else { |
729 | SV * const sv = ST(0); |
730 | STRLEN len; |
731 | const char * const s = SvPV_const(sv,len); |
732 | if (!SvUTF8(sv) || is_utf8_string((const U8*)s,len)) |
733 | XSRETURN_YES; |
734 | else |
735 | XSRETURN_NO; |
736 | } |
41be1fbd |
737 | XSRETURN_EMPTY; |
1b026014 |
738 | } |
739 | |
740 | XS(XS_utf8_encode) |
741 | { |
97aff369 |
742 | dVAR; |
1b026014 |
743 | dXSARGS; |
58c0efa5 |
744 | PERL_UNUSED_ARG(cv); |
1b026014 |
745 | if (items != 1) |
746 | Perl_croak(aTHX_ "Usage: utf8::encode(sv)"); |
c4420975 |
747 | sv_utf8_encode(ST(0)); |
1b026014 |
748 | XSRETURN_EMPTY; |
749 | } |
750 | |
751 | XS(XS_utf8_decode) |
752 | { |
97aff369 |
753 | dVAR; |
1b026014 |
754 | dXSARGS; |
58c0efa5 |
755 | PERL_UNUSED_ARG(cv); |
1b026014 |
756 | if (items != 1) |
757 | Perl_croak(aTHX_ "Usage: utf8::decode(sv)"); |
c4420975 |
758 | else { |
759 | SV * const sv = ST(0); |
6867be6d |
760 | const bool RETVAL = sv_utf8_decode(sv); |
1b026014 |
761 | ST(0) = boolSV(RETVAL); |
762 | sv_2mortal(ST(0)); |
763 | } |
764 | XSRETURN(1); |
765 | } |
766 | |
767 | XS(XS_utf8_upgrade) |
768 | { |
97aff369 |
769 | dVAR; |
1b026014 |
770 | dXSARGS; |
58c0efa5 |
771 | PERL_UNUSED_ARG(cv); |
1b026014 |
772 | if (items != 1) |
773 | Perl_croak(aTHX_ "Usage: utf8::upgrade(sv)"); |
c4420975 |
774 | else { |
775 | SV * const sv = ST(0); |
1b026014 |
776 | STRLEN RETVAL; |
777 | dXSTARG; |
778 | |
779 | RETVAL = sv_utf8_upgrade(sv); |
780 | XSprePUSH; PUSHi((IV)RETVAL); |
781 | } |
782 | XSRETURN(1); |
783 | } |
784 | |
785 | XS(XS_utf8_downgrade) |
786 | { |
97aff369 |
787 | dVAR; |
1b026014 |
788 | dXSARGS; |
58c0efa5 |
789 | PERL_UNUSED_ARG(cv); |
1b026014 |
790 | if (items < 1 || items > 2) |
791 | Perl_croak(aTHX_ "Usage: utf8::downgrade(sv, failok=0)"); |
c4420975 |
792 | else { |
793 | SV * const sv = ST(0); |
6867be6d |
794 | const bool failok = (items < 2) ? 0 : (int)SvIV(ST(1)); |
795 | const bool RETVAL = sv_utf8_downgrade(sv, failok); |
1b026014 |
796 | |
1b026014 |
797 | ST(0) = boolSV(RETVAL); |
798 | sv_2mortal(ST(0)); |
799 | } |
800 | XSRETURN(1); |
801 | } |
802 | |
803 | XS(XS_utf8_native_to_unicode) |
804 | { |
97aff369 |
805 | dVAR; |
1b026014 |
806 | dXSARGS; |
6867be6d |
807 | const UV uv = SvUV(ST(0)); |
58c0efa5 |
808 | PERL_UNUSED_ARG(cv); |
b7953727 |
809 | |
810 | if (items > 1) |
811 | Perl_croak(aTHX_ "Usage: utf8::native_to_unicode(sv)"); |
812 | |
1b026014 |
813 | ST(0) = sv_2mortal(newSViv(NATIVE_TO_UNI(uv))); |
814 | XSRETURN(1); |
815 | } |
816 | |
817 | XS(XS_utf8_unicode_to_native) |
818 | { |
97aff369 |
819 | dVAR; |
1b026014 |
820 | dXSARGS; |
6867be6d |
821 | const UV uv = SvUV(ST(0)); |
58c0efa5 |
822 | PERL_UNUSED_ARG(cv); |
b7953727 |
823 | |
824 | if (items > 1) |
825 | Perl_croak(aTHX_ "Usage: utf8::unicode_to_native(sv)"); |
826 | |
1b026014 |
827 | ST(0) = sv_2mortal(newSViv(UNI_TO_NATIVE(uv))); |
828 | XSRETURN(1); |
829 | } |
830 | |
14a976d6 |
831 | XS(XS_Internals_SvREADONLY) /* This is dangerous stuff. */ |
29569577 |
832 | { |
97aff369 |
833 | dVAR; |
29569577 |
834 | dXSARGS; |
c4420975 |
835 | SV * const sv = SvRV(ST(0)); |
58c0efa5 |
836 | PERL_UNUSED_ARG(cv); |
6867be6d |
837 | |
29569577 |
838 | if (items == 1) { |
839 | if (SvREADONLY(sv)) |
840 | XSRETURN_YES; |
841 | else |
842 | XSRETURN_NO; |
843 | } |
844 | else if (items == 2) { |
845 | if (SvTRUE(ST(1))) { |
846 | SvREADONLY_on(sv); |
847 | XSRETURN_YES; |
848 | } |
849 | else { |
14a976d6 |
850 | /* I hope you really know what you are doing. */ |
29569577 |
851 | SvREADONLY_off(sv); |
852 | XSRETURN_NO; |
853 | } |
854 | } |
14a976d6 |
855 | XSRETURN_UNDEF; /* Can't happen. */ |
29569577 |
856 | } |
857 | |
14a976d6 |
858 | XS(XS_Internals_SvREFCNT) /* This is dangerous stuff. */ |
29569577 |
859 | { |
97aff369 |
860 | dVAR; |
29569577 |
861 | dXSARGS; |
c4420975 |
862 | SV * const sv = SvRV(ST(0)); |
58c0efa5 |
863 | PERL_UNUSED_ARG(cv); |
6867be6d |
864 | |
29569577 |
865 | if (items == 1) |
14a976d6 |
866 | XSRETURN_IV(SvREFCNT(sv) - 1); /* Minus the ref created for us. */ |
29569577 |
867 | else if (items == 2) { |
14a976d6 |
868 | /* I hope you really know what you are doing. */ |
29569577 |
869 | SvREFCNT(sv) = SvIV(ST(1)); |
870 | XSRETURN_IV(SvREFCNT(sv)); |
871 | } |
14a976d6 |
872 | XSRETURN_UNDEF; /* Can't happen. */ |
29569577 |
873 | } |
874 | |
f044d0d1 |
875 | XS(XS_Internals_hv_clear_placehold) |
dfd4ef2f |
876 | { |
97aff369 |
877 | dVAR; |
dfd4ef2f |
878 | dXSARGS; |
58c0efa5 |
879 | PERL_UNUSED_ARG(cv); |
6867be6d |
880 | |
3540d4ce |
881 | if (items != 1) |
882 | Perl_croak(aTHX_ "Usage: UNIVERSAL::hv_clear_placeholders(hv)"); |
c4420975 |
883 | else { |
884 | HV * const hv = (HV *) SvRV(ST(0)); |
885 | hv_clear_placeholders(hv); |
886 | XSRETURN(0); |
887 | } |
dfd4ef2f |
888 | } |
39f7a870 |
889 | |
39cff0d9 |
890 | XS(XS_Regexp_DESTROY) |
891 | { |
96a5add6 |
892 | PERL_UNUSED_CONTEXT; |
53c1dcc0 |
893 | PERL_UNUSED_ARG(cv); |
39cff0d9 |
894 | } |
895 | |
39f7a870 |
896 | XS(XS_PerlIO_get_layers) |
897 | { |
97aff369 |
898 | dVAR; |
39f7a870 |
899 | dXSARGS; |
58c0efa5 |
900 | PERL_UNUSED_ARG(cv); |
39f7a870 |
901 | if (items < 1 || items % 2 == 0) |
902 | Perl_croak(aTHX_ "Usage: PerlIO_get_layers(filehandle[,args])"); |
5fef3b4a |
903 | #ifdef USE_PERLIO |
39f7a870 |
904 | { |
905 | SV * sv; |
906 | GV * gv; |
907 | IO * io; |
908 | bool input = TRUE; |
909 | bool details = FALSE; |
910 | |
911 | if (items > 1) { |
c4420975 |
912 | SV * const *svp; |
39f7a870 |
913 | for (svp = MARK + 2; svp <= SP; svp += 2) { |
c4420975 |
914 | SV * const * const varp = svp; |
915 | SV * const * const valp = svp + 1; |
39f7a870 |
916 | STRLEN klen; |
c4420975 |
917 | const char * const key = SvPV_const(*varp, klen); |
39f7a870 |
918 | |
919 | switch (*key) { |
920 | case 'i': |
921 | if (klen == 5 && memEQ(key, "input", 5)) { |
922 | input = SvTRUE(*valp); |
923 | break; |
924 | } |
925 | goto fail; |
926 | case 'o': |
927 | if (klen == 6 && memEQ(key, "output", 6)) { |
928 | input = !SvTRUE(*valp); |
929 | break; |
930 | } |
931 | goto fail; |
932 | case 'd': |
933 | if (klen == 7 && memEQ(key, "details", 7)) { |
934 | details = SvTRUE(*valp); |
935 | break; |
936 | } |
937 | goto fail; |
938 | default: |
939 | fail: |
940 | Perl_croak(aTHX_ |
941 | "get_layers: unknown argument '%s'", |
942 | key); |
943 | } |
944 | } |
945 | |
946 | SP -= (items - 1); |
947 | } |
948 | |
949 | sv = POPs; |
950 | gv = (GV*)sv; |
951 | |
952 | if (!isGV(sv)) { |
953 | if (SvROK(sv) && isGV(SvRV(sv))) |
954 | gv = (GV*)SvRV(sv); |
671d49be |
955 | else if (SvPOKp(sv)) |
f776e3cd |
956 | gv = gv_fetchsv(sv, 0, SVt_PVIO); |
39f7a870 |
957 | } |
958 | |
959 | if (gv && (io = GvIO(gv))) { |
960 | dTARGET; |
c4420975 |
961 | AV* const av = PerlIO_get_layers(aTHX_ input ? |
39f7a870 |
962 | IoIFP(io) : IoOFP(io)); |
963 | I32 i; |
c4420975 |
964 | const I32 last = av_len(av); |
39f7a870 |
965 | I32 nitem = 0; |
966 | |
967 | for (i = last; i >= 0; i -= 3) { |
c4420975 |
968 | SV * const * const namsvp = av_fetch(av, i - 2, FALSE); |
969 | SV * const * const argsvp = av_fetch(av, i - 1, FALSE); |
970 | SV * const * const flgsvp = av_fetch(av, i, FALSE); |
39f7a870 |
971 | |
c4420975 |
972 | const bool namok = namsvp && *namsvp && SvPOK(*namsvp); |
973 | const bool argok = argsvp && *argsvp && SvPOK(*argsvp); |
974 | const bool flgok = flgsvp && *flgsvp && SvIOK(*flgsvp); |
39f7a870 |
975 | |
976 | if (details) { |
ec3bab8e |
977 | XPUSHs(namok |
978 | ? newSVpvn(SvPVX_const(*namsvp), SvCUR(*namsvp)) |
979 | : &PL_sv_undef); |
980 | XPUSHs(argok |
981 | ? newSVpvn(SvPVX_const(*argsvp), SvCUR(*argsvp)) |
982 | : &PL_sv_undef); |
39f7a870 |
983 | if (flgok) |
984 | XPUSHi(SvIVX(*flgsvp)); |
985 | else |
986 | XPUSHs(&PL_sv_undef); |
987 | nitem += 3; |
988 | } |
989 | else { |
990 | if (namok && argok) |
991 | XPUSHs(Perl_newSVpvf(aTHX_ "%"SVf"(%"SVf")", |
be2597df |
992 | SVfARG(*namsvp), |
993 | SVfARG(*argsvp))); |
39f7a870 |
994 | else if (namok) |
95b63a38 |
995 | XPUSHs(Perl_newSVpvf(aTHX_ "%"SVf, |
be2597df |
996 | SVfARG(*namsvp))); |
39f7a870 |
997 | else |
998 | XPUSHs(&PL_sv_undef); |
999 | nitem++; |
1000 | if (flgok) { |
c4420975 |
1001 | const IV flags = SvIVX(*flgsvp); |
39f7a870 |
1002 | |
1003 | if (flags & PERLIO_F_UTF8) { |
396482e1 |
1004 | XPUSHs(newSVpvs("utf8")); |
39f7a870 |
1005 | nitem++; |
1006 | } |
1007 | } |
1008 | } |
1009 | } |
1010 | |
1011 | SvREFCNT_dec(av); |
1012 | |
1013 | XSRETURN(nitem); |
1014 | } |
1015 | } |
5fef3b4a |
1016 | #endif |
39f7a870 |
1017 | |
1018 | XSRETURN(0); |
1019 | } |
1020 | |
9a7034eb |
1021 | XS(XS_Internals_hash_seed) |
c910b28a |
1022 | { |
97aff369 |
1023 | dVAR; |
c85d3f85 |
1024 | /* Using dXSARGS would also have dITEM and dSP, |
1025 | * which define 2 unused local variables. */ |
557b887a |
1026 | dAXMARK; |
53c1dcc0 |
1027 | PERL_UNUSED_ARG(cv); |
ad73156c |
1028 | PERL_UNUSED_VAR(mark); |
81eaca17 |
1029 | XSRETURN_UV(PERL_HASH_SEED); |
c910b28a |
1030 | } |
1031 | |
008fb0c0 |
1032 | XS(XS_Internals_rehash_seed) |
8e90d776 |
1033 | { |
97aff369 |
1034 | dVAR; |
8e90d776 |
1035 | /* Using dXSARGS would also have dITEM and dSP, |
1036 | * which define 2 unused local variables. */ |
557b887a |
1037 | dAXMARK; |
53c1dcc0 |
1038 | PERL_UNUSED_ARG(cv); |
ad73156c |
1039 | PERL_UNUSED_VAR(mark); |
008fb0c0 |
1040 | XSRETURN_UV(PL_rehash_seed); |
8e90d776 |
1041 | } |
1042 | |
05619474 |
1043 | XS(XS_Internals_HvREHASH) /* Subject to change */ |
1044 | { |
97aff369 |
1045 | dVAR; |
05619474 |
1046 | dXSARGS; |
58c0efa5 |
1047 | PERL_UNUSED_ARG(cv); |
05619474 |
1048 | if (SvROK(ST(0))) { |
c4420975 |
1049 | const HV * const hv = (HV *) SvRV(ST(0)); |
05619474 |
1050 | if (items == 1 && SvTYPE(hv) == SVt_PVHV) { |
1051 | if (HvREHASH(hv)) |
1052 | XSRETURN_YES; |
1053 | else |
1054 | XSRETURN_NO; |
1055 | } |
1056 | } |
1057 | Perl_croak(aTHX_ "Internals::HvREHASH $hashref"); |
1058 | } |
241d1a3b |
1059 | |
e1234d8e |
1060 | XS(XS_Internals_inc_sub_generation) |
1061 | { |
97aff369 |
1062 | dVAR; |
e1234d8e |
1063 | /* Using dXSARGS would also have dITEM and dSP, |
1064 | * which define 2 unused local variables. */ |
1065 | dAXMARK; |
1066 | PERL_UNUSED_ARG(cv); |
1067 | PERL_UNUSED_VAR(mark); |
1068 | ++PL_sub_generation; |
1069 | XSRETURN_EMPTY; |
1070 | } |
1071 | |
80305961 |
1072 | XS(XS_re_is_regexp) |
1073 | { |
1074 | dVAR; |
1075 | dXSARGS; |
1076 | if (items != 1) |
1077 | Perl_croak(aTHX_ "Usage: %s(%s)", "re::is_regexp", "sv"); |
1078 | PERL_UNUSED_VAR(cv); /* -W */ |
1079 | PERL_UNUSED_VAR(ax); /* -Wall */ |
1080 | SP -= items; |
1081 | { |
1082 | SV * sv = ST(0); |
1083 | if ( Perl_get_re_arg( aTHX_ sv, 0, NULL ) ) |
1084 | { |
1085 | XSRETURN_YES; |
1086 | } else { |
1087 | XSRETURN_NO; |
1088 | } |
1089 | /* NOTREACHED */ |
1090 | PUTBACK; |
1091 | return; |
1092 | } |
1093 | } |
1094 | |
1095 | XS(XS_re_regname) |
1096 | { |
1097 | |
1098 | dVAR; |
1099 | dXSARGS; |
28d8d7f4 |
1100 | if (items < 1 || items > 2) |
1101 | Perl_croak(aTHX_ "Usage: %s(%s)", "re::regname", "name[, all ]"); |
80305961 |
1102 | PERL_UNUSED_VAR(cv); /* -W */ |
1103 | PERL_UNUSED_VAR(ax); /* -Wall */ |
1104 | SP -= items; |
1105 | { |
1106 | SV * sv = ST(0); |
80305961 |
1107 | SV * all; |
28d8d7f4 |
1108 | regexp *re = PL_curpm ? PM_GETRE(PL_curpm) : NULL; |
80305961 |
1109 | SV *bufs = NULL; |
1110 | |
1111 | if (items < 2) |
80305961 |
1112 | all = NULL; |
1113 | else { |
28d8d7f4 |
1114 | all = ST(1); |
80305961 |
1115 | } |
1116 | { |
80305961 |
1117 | if (SvPOK(sv) && re && re->paren_names) { |
1118 | bufs = CALLREG_NAMEDBUF(re,sv,all && SvTRUE(all)); |
1119 | if (bufs) { |
1120 | if (all && SvTRUE(all)) |
1121 | XPUSHs(newRV(bufs)); |
1122 | else |
1123 | XPUSHs(SvREFCNT_inc(bufs)); |
1124 | XSRETURN(1); |
1125 | } |
1126 | } |
1127 | XSRETURN_UNDEF; |
1128 | } |
1129 | PUTBACK; |
1130 | return; |
1131 | } |
1132 | } |
1133 | |
1134 | XS(XS_re_regnames) |
1135 | { |
1136 | dVAR; |
1137 | dXSARGS; |
28d8d7f4 |
1138 | if (items < 0 || items > 1) |
1139 | Perl_croak(aTHX_ "Usage: %s(%s)", "re::regnames", "[all]"); |
80305961 |
1140 | PERL_UNUSED_VAR(cv); /* -W */ |
1141 | PERL_UNUSED_VAR(ax); /* -Wall */ |
1142 | SP -= items; |
1143 | { |
80305961 |
1144 | SV * all; |
28d8d7f4 |
1145 | regexp *re = PL_curpm ? PM_GETRE(PL_curpm) : NULL; |
80305961 |
1146 | IV count = 0; |
1147 | |
1148 | if (items < 1) |
80305961 |
1149 | all = NULL; |
1150 | else { |
28d8d7f4 |
1151 | all = ST(0); |
80305961 |
1152 | } |
1153 | { |
80305961 |
1154 | if (re && re->paren_names) { |
1155 | HV *hv= re->paren_names; |
1156 | (void)hv_iterinit(hv); |
1157 | while (1) { |
1158 | HE *temphe = hv_iternext_flags(hv,0); |
1159 | if (temphe) { |
1160 | IV i; |
1161 | IV parno = 0; |
1162 | SV* sv_dat = HeVAL(temphe); |
1163 | I32 *nums = (I32*)SvPVX(sv_dat); |
1164 | for ( i = 0; i < SvIVX(sv_dat); i++ ) { |
1165 | if ((I32)(re->lastcloseparen) >= nums[i] && |
f0ab9afb |
1166 | re->offs[nums[i]].start != -1 && |
1167 | re->offs[nums[i]].end != -1) |
80305961 |
1168 | { |
1169 | parno = nums[i]; |
1170 | break; |
1171 | } |
1172 | } |
1173 | if (parno || (all && SvTRUE(all))) { |
1174 | STRLEN len; |
1175 | char *pv = HePV(temphe, len); |
1176 | if ( GIMME_V == G_ARRAY ) |
1177 | XPUSHs(newSVpvn(pv,len)); |
1178 | count++; |
1179 | } |
1180 | } else { |
1181 | break; |
1182 | } |
1183 | } |
1184 | } |
1185 | if ( GIMME_V == G_ARRAY ) |
1186 | XSRETURN(count); |
1187 | else |
1188 | XSRETURN_UNDEF; |
1189 | } |
1190 | PUTBACK; |
1191 | return; |
1192 | } |
1193 | } |
1194 | |
1195 | |
1196 | XS(XS_re_regnames_iterinit) |
1197 | { |
1198 | dVAR; |
1199 | dXSARGS; |
a2e78f72 |
1200 | if (items != 0) |
1201 | Perl_croak(aTHX_ "Usage: re::regnames_iterinit()"); |
80305961 |
1202 | PERL_UNUSED_VAR(cv); /* -W */ |
1203 | PERL_UNUSED_VAR(ax); /* -Wall */ |
1204 | SP -= items; |
1205 | { |
28d8d7f4 |
1206 | regexp *re = PL_curpm ? PM_GETRE(PL_curpm) : NULL; |
1207 | if (re && re->paren_names) { |
1208 | (void)hv_iterinit(re->paren_names); |
1209 | XPUSHs(newSViv(HvTOTALKEYS(re->paren_names))); |
1210 | } else { |
1211 | XSRETURN_UNDEF; |
1212 | } |
80305961 |
1213 | PUTBACK; |
1214 | return; |
1215 | } |
1216 | } |
1217 | |
1218 | |
1219 | XS(XS_re_regnames_iternext) |
1220 | { |
1221 | dVAR; |
1222 | dXSARGS; |
28d8d7f4 |
1223 | if (items < 0 || items > 1) |
1224 | Perl_croak(aTHX_ "Usage: %s(%s)", "re::regnames_iternext", "[all]"); |
80305961 |
1225 | PERL_UNUSED_VAR(cv); /* -W */ |
1226 | PERL_UNUSED_VAR(ax); /* -Wall */ |
1227 | SP -= items; |
1228 | { |
80305961 |
1229 | SV * all; |
28d8d7f4 |
1230 | regexp *re = PL_curpm ? PM_GETRE(PL_curpm) : NULL; |
80305961 |
1231 | |
1232 | if (items < 1) |
80305961 |
1233 | all = NULL; |
1234 | else { |
28d8d7f4 |
1235 | all = ST(0); |
80305961 |
1236 | } |
28d8d7f4 |
1237 | if (re && re->paren_names) { |
1238 | HV *hv= re->paren_names; |
1239 | while (1) { |
1240 | HE *temphe = hv_iternext_flags(hv,0); |
1241 | if (temphe) { |
1242 | IV i; |
1243 | IV parno = 0; |
1244 | SV* sv_dat = HeVAL(temphe); |
1245 | I32 *nums = (I32*)SvPVX(sv_dat); |
1246 | for ( i = 0; i < SvIVX(sv_dat); i++ ) { |
1247 | if ((I32)(re->lastcloseparen) >= nums[i] && |
f0ab9afb |
1248 | re->offs[nums[i]].start != -1 && |
1249 | re->offs[nums[i]].end != -1) |
28d8d7f4 |
1250 | { |
1251 | parno = nums[i]; |
1252 | break; |
80305961 |
1253 | } |
80305961 |
1254 | } |
28d8d7f4 |
1255 | if (parno || (all && SvTRUE(all))) { |
1256 | STRLEN len; |
1257 | char *pv = HePV(temphe, len); |
1258 | XPUSHs(newSVpvn(pv,len)); |
1259 | XSRETURN(1); |
1260 | } |
1261 | } else { |
1262 | break; |
80305961 |
1263 | } |
1264 | } |
28d8d7f4 |
1265 | } |
1266 | XSRETURN_UNDEF; |
80305961 |
1267 | PUTBACK; |
1268 | return; |
1269 | } |
1270 | } |
1271 | |
1272 | |
1273 | XS(XS_re_regnames_count) |
1274 | { |
28d8d7f4 |
1275 | regexp *re = PL_curpm ? PM_GETRE(PL_curpm) : NULL; |
80305961 |
1276 | dVAR; |
1277 | dXSARGS; |
1278 | |
28d8d7f4 |
1279 | if (items != 0) |
1280 | Perl_croak(aTHX_ "Usage: %s(%s)", "re::regnames_count", ""); |
80305961 |
1281 | PERL_UNUSED_VAR(cv); /* -W */ |
1282 | PERL_UNUSED_VAR(ax); /* -Wall */ |
1283 | SP -= items; |
28d8d7f4 |
1284 | |
80305961 |
1285 | if (re && re->paren_names) { |
1286 | XPUSHs(newSViv(HvTOTALKEYS(re->paren_names))); |
1287 | } else { |
1288 | XSRETURN_UNDEF; |
1289 | } |
1290 | PUTBACK; |
1291 | return; |
1292 | } |
1293 | |
1294 | |
241d1a3b |
1295 | /* |
1296 | * Local variables: |
1297 | * c-indentation-style: bsd |
1298 | * c-basic-offset: 4 |
1299 | * indent-tabs-mode: t |
1300 | * End: |
1301 | * |
37442d52 |
1302 | * ex: set ts=8 sts=4 sw=4 noet: |
1303 | */ |