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 |
810e6113 |
35 | S_isa_lookup(pTHX_ HV *stash, const char * const name, const HV* const name_stash) |
6d4a7be2 |
36 | { |
97aff369 |
37 | dVAR; |
e1a479c5 |
38 | AV* stash_linear_isa; |
39 | SV** svp; |
bfcb3514 |
40 | const char *hvname; |
e1a479c5 |
41 | I32 items; |
6d4a7be2 |
42 | |
301daebc |
43 | /* A stash/class can go by many names (ie. User == main::User), so |
44 | we compare the stash itself just in case */ |
34692224 |
45 | if (name_stash && ((const HV *)stash == name_stash)) |
a9ec700e |
46 | return TRUE; |
6d4a7be2 |
47 | |
bfcb3514 |
48 | hvname = HvNAME_get(stash); |
49 | |
50 | if (strEQ(hvname, name)) |
a9ec700e |
51 | return TRUE; |
6d4a7be2 |
52 | |
a1d407e8 |
53 | if (strEQ(name, "UNIVERSAL")) |
a9ec700e |
54 | return TRUE; |
a1d407e8 |
55 | |
e1a479c5 |
56 | stash_linear_isa = mro_get_linear_isa(stash); |
57 | svp = AvARRAY(stash_linear_isa) + 1; |
58 | items = AvFILLp(stash_linear_isa); |
59 | while (items--) { |
60 | SV* const basename_sv = *svp++; |
810e6113 |
61 | HV* const basestash = gv_stashsv(basename_sv, 0); |
dd69841b |
62 | if (!basestash) { |
b0c482e3 |
63 | if (ckWARN(WARN_SYNTAX)) |
e1a479c5 |
64 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), |
65 | "Can't locate package %"SVf" for the parents of %s", |
66 | SVfARG(basename_sv), hvname); |
67 | continue; |
46e4b22b |
68 | } |
e1a479c5 |
69 | if(name_stash == basestash || strEQ(name, SvPVX(basename_sv))) |
70 | return TRUE; |
6d4a7be2 |
71 | } |
72 | |
a9ec700e |
73 | return FALSE; |
6d4a7be2 |
74 | } |
75 | |
954c1994 |
76 | /* |
ccfc67b7 |
77 | =head1 SV Manipulation Functions |
78 | |
954c1994 |
79 | =for apidoc sv_derived_from |
80 | |
6885da0e |
81 | Returns a boolean indicating whether the SV is derived from the specified class |
82 | I<at the C level>. To check derivation at the Perl level, call C<isa()> as a |
83 | normal Perl method. |
954c1994 |
84 | |
85 | =cut |
86 | */ |
87 | |
55497cff |
88 | bool |
864dbfa3 |
89 | Perl_sv_derived_from(pTHX_ SV *sv, const char *name) |
55497cff |
90 | { |
97aff369 |
91 | dVAR; |
0b6f4f5c |
92 | HV *stash; |
46e4b22b |
93 | |
5b295bef |
94 | SvGETMAGIC(sv); |
55497cff |
95 | |
96 | if (SvROK(sv)) { |
0b6f4f5c |
97 | const char *type; |
55497cff |
98 | sv = SvRV(sv); |
99 | type = sv_reftype(sv,0); |
0b6f4f5c |
100 | if (type && strEQ(type,name)) |
101 | return TRUE; |
102 | stash = SvOBJECT(sv) ? SvSTASH(sv) : NULL; |
55497cff |
103 | } |
104 | else { |
da51bb9b |
105 | stash = gv_stashsv(sv, 0); |
55497cff |
106 | } |
46e4b22b |
107 | |
0b6f4f5c |
108 | if (stash) { |
da51bb9b |
109 | HV * const name_stash = gv_stashpv(name, 0); |
810e6113 |
110 | return isa_lookup(stash, name, name_stash); |
0b6f4f5c |
111 | } |
112 | else |
113 | return FALSE; |
301daebc |
114 | |
55497cff |
115 | } |
116 | |
cbc021f9 |
117 | /* |
118 | =for apidoc sv_does |
119 | |
120 | Returns a boolean indicating whether the SV performs a specific, named role. |
121 | The SV can be a Perl object or the name of a Perl class. |
122 | |
123 | =cut |
124 | */ |
125 | |
1b026014 |
126 | #include "XSUB.h" |
127 | |
cbc021f9 |
128 | bool |
129 | Perl_sv_does(pTHX_ SV *sv, const char *name) |
130 | { |
131 | const char *classname; |
132 | bool does_it; |
59e7186f |
133 | SV *methodname; |
cbc021f9 |
134 | |
135 | dSP; |
136 | ENTER; |
137 | SAVETMPS; |
138 | |
139 | SvGETMAGIC(sv); |
140 | |
141 | if (!SvOK(sv) || !(SvROK(sv) || (SvPOK(sv) && SvCUR(sv)) |
142 | || (SvGMAGICAL(sv) && SvPOKp(sv) && SvCUR(sv)))) |
143 | return FALSE; |
144 | |
145 | if (sv_isobject(sv)) { |
146 | classname = sv_reftype(SvRV(sv),TRUE); |
147 | } else { |
94707740 |
148 | classname = SvPV_nolen(sv); |
cbc021f9 |
149 | } |
150 | |
151 | if (strEQ(name,classname)) |
152 | return TRUE; |
153 | |
154 | PUSHMARK(SP); |
155 | XPUSHs(sv); |
156 | XPUSHs(sv_2mortal(newSVpv(name, 0))); |
157 | PUTBACK; |
158 | |
59e7186f |
159 | methodname = sv_2mortal(newSVpv("isa", 0)); |
160 | /* ugly hack: use the SvSCREAM flag so S_method_common |
161 | * can figure out we're calling DOES() and not isa(), |
162 | * and report eventual errors correctly. --rgs */ |
163 | SvSCREAM_on(methodname); |
164 | call_sv(methodname, G_SCALAR | G_METHOD); |
cbc021f9 |
165 | SPAGAIN; |
166 | |
167 | does_it = SvTRUE( TOPs ); |
168 | FREETMPS; |
169 | LEAVE; |
170 | |
171 | return does_it; |
172 | } |
173 | |
80305961 |
174 | regexp * |
175 | Perl_get_re_arg( pTHX_ SV *sv, U32 flags, MAGIC **mgp) { |
176 | MAGIC *mg; |
177 | if (sv) { |
178 | if (SvMAGICAL(sv)) |
179 | mg_get(sv); |
180 | if (SvROK(sv) && |
181 | (sv = (SV*)SvRV(sv)) && /* assign deliberate */ |
182 | SvTYPE(sv) == SVt_PVMG && |
183 | (mg = mg_find(sv, PERL_MAGIC_qr))) /* assign deliberate */ |
184 | { |
185 | if (mgp) *mgp = mg; |
186 | return (regexp *)mg->mg_obj; |
187 | } |
188 | } |
189 | if (mgp) *mgp = NULL; |
190 | return ((flags && PL_curpm) ? PM_GETRE(PL_curpm) : NULL); |
191 | } |
192 | |
193 | |
27da23d5 |
194 | PERL_XS_EXPORT_C void XS_UNIVERSAL_isa(pTHX_ CV *cv); |
195 | PERL_XS_EXPORT_C void XS_UNIVERSAL_can(pTHX_ CV *cv); |
cbc021f9 |
196 | PERL_XS_EXPORT_C void XS_UNIVERSAL_DOES(pTHX_ CV *cv); |
27da23d5 |
197 | PERL_XS_EXPORT_C void XS_UNIVERSAL_VERSION(pTHX_ CV *cv); |
439cb1c4 |
198 | XS(XS_version_new); |
199 | XS(XS_version_stringify); |
200 | XS(XS_version_numify); |
9137345a |
201 | XS(XS_version_normal); |
439cb1c4 |
202 | XS(XS_version_vcmp); |
203 | XS(XS_version_boolean); |
2dfd8427 |
204 | #ifdef HASATTRIBUTE_NORETURN |
205 | XS(XS_version_noop) __attribute__noreturn__; |
206 | #else |
439cb1c4 |
207 | XS(XS_version_noop); |
2dfd8427 |
208 | #endif |
c8d69e4a |
209 | XS(XS_version_is_alpha); |
137d6fc0 |
210 | XS(XS_version_qv); |
8800c35a |
211 | XS(XS_utf8_is_utf8); |
1b026014 |
212 | XS(XS_utf8_valid); |
213 | XS(XS_utf8_encode); |
214 | XS(XS_utf8_decode); |
215 | XS(XS_utf8_upgrade); |
216 | XS(XS_utf8_downgrade); |
217 | XS(XS_utf8_unicode_to_native); |
218 | XS(XS_utf8_native_to_unicode); |
29569577 |
219 | XS(XS_Internals_SvREADONLY); |
220 | XS(XS_Internals_SvREFCNT); |
f044d0d1 |
221 | XS(XS_Internals_hv_clear_placehold); |
39f7a870 |
222 | XS(XS_PerlIO_get_layers); |
39cff0d9 |
223 | XS(XS_Regexp_DESTROY); |
9a7034eb |
224 | XS(XS_Internals_hash_seed); |
008fb0c0 |
225 | XS(XS_Internals_rehash_seed); |
05619474 |
226 | XS(XS_Internals_HvREHASH); |
e1234d8e |
227 | XS(XS_Internals_inc_sub_generation); |
80305961 |
228 | XS(XS_re_is_regexp); |
229 | XS(XS_re_regname); |
230 | XS(XS_re_regnames); |
231 | XS(XS_re_regnames_iterinit); |
232 | XS(XS_re_regnames_iternext); |
233 | XS(XS_re_regnames_count); |
0cb96387 |
234 | |
235 | void |
236 | Perl_boot_core_UNIVERSAL(pTHX) |
237 | { |
97aff369 |
238 | dVAR; |
157e3fc8 |
239 | static const char file[] = __FILE__; |
0cb96387 |
240 | |
241 | newXS("UNIVERSAL::isa", XS_UNIVERSAL_isa, file); |
242 | newXS("UNIVERSAL::can", XS_UNIVERSAL_can, file); |
cbc021f9 |
243 | newXS("UNIVERSAL::DOES", XS_UNIVERSAL_DOES, file); |
0cb96387 |
244 | newXS("UNIVERSAL::VERSION", XS_UNIVERSAL_VERSION, file); |
439cb1c4 |
245 | { |
ad63d80f |
246 | /* register the overloading (type 'A') magic */ |
247 | PL_amagic_generation++; |
439cb1c4 |
248 | /* Make it findable via fetchmethod */ |
be2ebcad |
249 | newXS("version::()", XS_version_noop, file); |
439cb1c4 |
250 | newXS("version::new", XS_version_new, file); |
251 | newXS("version::(\"\"", XS_version_stringify, file); |
252 | newXS("version::stringify", XS_version_stringify, file); |
253 | newXS("version::(0+", XS_version_numify, file); |
254 | newXS("version::numify", XS_version_numify, file); |
9137345a |
255 | newXS("version::normal", XS_version_normal, file); |
439cb1c4 |
256 | newXS("version::(cmp", XS_version_vcmp, file); |
257 | newXS("version::(<=>", XS_version_vcmp, file); |
258 | newXS("version::vcmp", XS_version_vcmp, file); |
259 | newXS("version::(bool", XS_version_boolean, file); |
260 | newXS("version::boolean", XS_version_boolean, file); |
261 | newXS("version::(nomethod", XS_version_noop, file); |
262 | newXS("version::noop", XS_version_noop, file); |
c8d69e4a |
263 | newXS("version::is_alpha", XS_version_is_alpha, file); |
137d6fc0 |
264 | newXS("version::qv", XS_version_qv, file); |
439cb1c4 |
265 | } |
8800c35a |
266 | newXS("utf8::is_utf8", XS_utf8_is_utf8, file); |
1b026014 |
267 | newXS("utf8::valid", XS_utf8_valid, file); |
268 | newXS("utf8::encode", XS_utf8_encode, file); |
269 | newXS("utf8::decode", XS_utf8_decode, file); |
270 | newXS("utf8::upgrade", XS_utf8_upgrade, file); |
271 | newXS("utf8::downgrade", XS_utf8_downgrade, file); |
272 | newXS("utf8::native_to_unicode", XS_utf8_native_to_unicode, file); |
273 | newXS("utf8::unicode_to_native", XS_utf8_unicode_to_native, file); |
29569577 |
274 | newXSproto("Internals::SvREADONLY",XS_Internals_SvREADONLY, file, "\\[$%@];$"); |
275 | newXSproto("Internals::SvREFCNT",XS_Internals_SvREFCNT, file, "\\[$%@];$"); |
dfd4ef2f |
276 | newXSproto("Internals::hv_clear_placeholders", |
f044d0d1 |
277 | XS_Internals_hv_clear_placehold, file, "\\%"); |
9d569fce |
278 | newXSproto("PerlIO::get_layers", |
279 | XS_PerlIO_get_layers, file, "*;@"); |
39cff0d9 |
280 | newXS("Regexp::DESTROY", XS_Regexp_DESTROY, file); |
9a7034eb |
281 | newXSproto("Internals::hash_seed",XS_Internals_hash_seed, file, ""); |
008fb0c0 |
282 | newXSproto("Internals::rehash_seed",XS_Internals_rehash_seed, file, ""); |
05619474 |
283 | newXSproto("Internals::HvREHASH", XS_Internals_HvREHASH, file, "\\%"); |
80305961 |
284 | newXSproto("re::is_regexp", XS_re_is_regexp, file, "$"); |
28d8d7f4 |
285 | newXSproto("re::regname", XS_re_regname, file, ";$$"); |
286 | newXSproto("re::regnames", XS_re_regnames, file, ";$"); |
287 | newXSproto("re::regnames_iterinit", XS_re_regnames_iterinit, file, ""); |
288 | newXSproto("re::regnames_iternext", XS_re_regnames_iternext, file, ";$"); |
289 | newXSproto("re::regnames_count", XS_re_regnames_count, file, ""); |
0cb96387 |
290 | } |
291 | |
55497cff |
292 | |
6d4a7be2 |
293 | XS(XS_UNIVERSAL_isa) |
294 | { |
97aff369 |
295 | dVAR; |
6d4a7be2 |
296 | dXSARGS; |
58c0efa5 |
297 | PERL_UNUSED_ARG(cv); |
6d4a7be2 |
298 | |
299 | if (items != 2) |
cea2e8a9 |
300 | Perl_croak(aTHX_ "Usage: UNIVERSAL::isa(reference, kind)"); |
c4420975 |
301 | else { |
302 | SV * const sv = ST(0); |
303 | const char *name; |
6d4a7be2 |
304 | |
c4420975 |
305 | SvGETMAGIC(sv); |
d3f7f2b2 |
306 | |
c4420975 |
307 | if (!SvOK(sv) || !(SvROK(sv) || (SvPOK(sv) && SvCUR(sv)) |
308 | || (SvGMAGICAL(sv) && SvPOKp(sv) && SvCUR(sv)))) |
309 | XSRETURN_UNDEF; |
f8f70380 |
310 | |
c4420975 |
311 | name = SvPV_nolen_const(ST(1)); |
6d4a7be2 |
312 | |
c4420975 |
313 | ST(0) = boolSV(sv_derived_from(sv, name)); |
314 | XSRETURN(1); |
315 | } |
6d4a7be2 |
316 | } |
317 | |
6d4a7be2 |
318 | XS(XS_UNIVERSAL_can) |
319 | { |
97aff369 |
320 | dVAR; |
6d4a7be2 |
321 | dXSARGS; |
322 | SV *sv; |
6867be6d |
323 | const char *name; |
6d4a7be2 |
324 | SV *rv; |
6f08146e |
325 | HV *pkg = NULL; |
58c0efa5 |
326 | PERL_UNUSED_ARG(cv); |
6d4a7be2 |
327 | |
328 | if (items != 2) |
cea2e8a9 |
329 | Perl_croak(aTHX_ "Usage: UNIVERSAL::can(object-ref, method)"); |
6d4a7be2 |
330 | |
331 | sv = ST(0); |
f8f70380 |
332 | |
5b295bef |
333 | SvGETMAGIC(sv); |
d3f7f2b2 |
334 | |
253ecd6d |
335 | if (!SvOK(sv) || !(SvROK(sv) || (SvPOK(sv) && SvCUR(sv)) |
336 | || (SvGMAGICAL(sv) && SvPOKp(sv) && SvCUR(sv)))) |
f8f70380 |
337 | XSRETURN_UNDEF; |
338 | |
0510663f |
339 | name = SvPV_nolen_const(ST(1)); |
3280af22 |
340 | rv = &PL_sv_undef; |
6d4a7be2 |
341 | |
46e4b22b |
342 | if (SvROK(sv)) { |
6f08146e |
343 | sv = (SV*)SvRV(sv); |
46e4b22b |
344 | if (SvOBJECT(sv)) |
6f08146e |
345 | pkg = SvSTASH(sv); |
346 | } |
347 | else { |
da51bb9b |
348 | pkg = gv_stashsv(sv, 0); |
6f08146e |
349 | } |
350 | |
351 | if (pkg) { |
c4420975 |
352 | GV * const gv = gv_fetchmethod_autoload(pkg, name, FALSE); |
dc848c6f |
353 | if (gv && isGV(gv)) |
354 | rv = sv_2mortal(newRV((SV*)GvCV(gv))); |
6d4a7be2 |
355 | } |
356 | |
357 | ST(0) = rv; |
358 | XSRETURN(1); |
359 | } |
360 | |
cbc021f9 |
361 | XS(XS_UNIVERSAL_DOES) |
362 | { |
363 | dVAR; |
364 | dXSARGS; |
58c0efa5 |
365 | PERL_UNUSED_ARG(cv); |
cbc021f9 |
366 | |
367 | if (items != 2) |
26be3db7 |
368 | Perl_croak(aTHX_ "Usage: invocant->DOES(kind)"); |
cbc021f9 |
369 | else { |
370 | SV * const sv = ST(0); |
371 | const char *name; |
372 | |
373 | name = SvPV_nolen_const(ST(1)); |
374 | if (sv_does( sv, name )) |
375 | XSRETURN_YES; |
376 | |
377 | XSRETURN_NO; |
378 | } |
379 | } |
380 | |
6d4a7be2 |
381 | XS(XS_UNIVERSAL_VERSION) |
382 | { |
97aff369 |
383 | dVAR; |
6d4a7be2 |
384 | dXSARGS; |
385 | HV *pkg; |
386 | GV **gvp; |
387 | GV *gv; |
388 | SV *sv; |
e1ec3a88 |
389 | const char *undef; |
58c0efa5 |
390 | PERL_UNUSED_ARG(cv); |
6d4a7be2 |
391 | |
1571675a |
392 | if (SvROK(ST(0))) { |
6d4a7be2 |
393 | sv = (SV*)SvRV(ST(0)); |
1571675a |
394 | if (!SvOBJECT(sv)) |
cea2e8a9 |
395 | Perl_croak(aTHX_ "Cannot find version of an unblessed reference"); |
6d4a7be2 |
396 | pkg = SvSTASH(sv); |
397 | } |
398 | else { |
da51bb9b |
399 | pkg = gv_stashsv(ST(0), 0); |
6d4a7be2 |
400 | } |
401 | |
4608196e |
402 | gvp = pkg ? (GV**)hv_fetchs(pkg, "VERSION", FALSE) : NULL; |
6d4a7be2 |
403 | |
0008872a |
404 | if (gvp && isGV(gv = *gvp) && (sv = GvSV(gv)) && SvOK(sv)) { |
c4420975 |
405 | SV * const nsv = sv_newmortal(); |
6d4a7be2 |
406 | sv_setsv(nsv, sv); |
407 | sv = nsv; |
137d6fc0 |
408 | if ( !sv_derived_from(sv, "version")) |
ac0e6a2f |
409 | upg_version(sv, FALSE); |
c445ea15 |
410 | undef = NULL; |
6d4a7be2 |
411 | } |
412 | else { |
3280af22 |
413 | sv = (SV*)&PL_sv_undef; |
6d4a7be2 |
414 | undef = "(undef)"; |
415 | } |
416 | |
1571675a |
417 | if (items > 1) { |
1571675a |
418 | SV *req = ST(1); |
419 | |
62658f4d |
420 | if (undef) { |
bfcb3514 |
421 | if (pkg) { |
c4420975 |
422 | const char * const name = HvNAME_get(pkg); |
a3b680e6 |
423 | Perl_croak(aTHX_ |
bfcb3514 |
424 | "%s does not define $%s::VERSION--version check failed", |
425 | name, name); |
426 | } else { |
a3b680e6 |
427 | Perl_croak(aTHX_ |
428 | "%s defines neither package nor VERSION--version check failed", |
0510663f |
429 | SvPVx_nolen_const(ST(0)) ); |
62658f4d |
430 | } |
431 | } |
ad63d80f |
432 | |
137d6fc0 |
433 | if ( !sv_derived_from(req, "version")) { |
434 | /* req may very well be R/O, so create a new object */ |
ac0e6a2f |
435 | req = sv_2mortal( new_version(req) ); |
137d6fc0 |
436 | } |
1571675a |
437 | |
ac0e6a2f |
438 | if ( vcmp( req, sv ) > 0 ) { |
439 | if ( hv_exists((HV*)SvRV(req), "qv", 2 ) ) { |
440 | Perl_croak(aTHX_ "%s version %"SVf" required--" |
441 | "this is only version %"SVf"", HvNAME_get(pkg), |
be2597df |
442 | SVfARG(vnormal(req)), |
be2597df |
443 | SVfARG(vnormal(sv))); |
ac0e6a2f |
444 | } else { |
445 | Perl_croak(aTHX_ "%s version %"SVf" required--" |
446 | "this is only version %"SVf"", HvNAME_get(pkg), |
8cb289bd |
447 | SVfARG(vstringify(req)), |
448 | SVfARG(vstringify(sv))); |
ac0e6a2f |
449 | } |
450 | } |
451 | |
2d8e6c8d |
452 | } |
6d4a7be2 |
453 | |
2b140d5b |
454 | if ( SvOK(sv) && sv_derived_from(sv, "version") ) { |
8cb289bd |
455 | ST(0) = vstringify(sv); |
13f8f398 |
456 | } else { |
457 | ST(0) = sv; |
b38a9dc5 |
458 | } |
6d4a7be2 |
459 | |
460 | XSRETURN(1); |
461 | } |
462 | |
439cb1c4 |
463 | XS(XS_version_new) |
464 | { |
97aff369 |
465 | dVAR; |
439cb1c4 |
466 | dXSARGS; |
58c0efa5 |
467 | PERL_UNUSED_ARG(cv); |
129318bd |
468 | if (items > 3) |
439cb1c4 |
469 | Perl_croak(aTHX_ "Usage: version::new(class, version)"); |
470 | SP -= items; |
471 | { |
137d6fc0 |
472 | SV *vs = ST(1); |
473 | SV *rv; |
c4420975 |
474 | const char * const classname = |
475 | sv_isobject(ST(0)) /* get the class if called as an object method */ |
476 | ? HvNAME(SvSTASH(SvRV(ST(0)))) |
477 | : (char *)SvPV_nolen(ST(0)); |
9137345a |
478 | |
92dcf8ce |
479 | if ( items == 1 || vs == &PL_sv_undef ) { /* no param or explicit undef */ |
480 | /* create empty object */ |
481 | vs = sv_newmortal(); |
482 | sv_setpvn(vs,"",0); |
9137345a |
483 | } |
484 | else if ( items == 3 ) { |
485 | vs = sv_newmortal(); |
cfd0369c |
486 | Perl_sv_setpvf(aTHX_ vs,"v%s",SvPV_nolen_const(ST(2))); |
129318bd |
487 | } |
439cb1c4 |
488 | |
137d6fc0 |
489 | rv = new_version(vs); |
0723351e |
490 | if ( strcmp(classname,"version") != 0 ) /* inherited new() */ |
da51bb9b |
491 | sv_bless(rv, gv_stashpv(classname, GV_ADD)); |
137d6fc0 |
492 | |
493 | PUSHs(sv_2mortal(rv)); |
439cb1c4 |
494 | PUTBACK; |
495 | return; |
496 | } |
497 | } |
498 | |
499 | XS(XS_version_stringify) |
500 | { |
97aff369 |
501 | dVAR; |
41be1fbd |
502 | dXSARGS; |
58c0efa5 |
503 | PERL_UNUSED_ARG(cv); |
41be1fbd |
504 | if (items < 1) |
505 | Perl_croak(aTHX_ "Usage: version::stringify(lobj, ...)"); |
506 | SP -= items; |
507 | { |
7452cf6a |
508 | SV * lobj; |
41be1fbd |
509 | |
510 | if (sv_derived_from(ST(0), "version")) { |
9137345a |
511 | lobj = SvRV(ST(0)); |
41be1fbd |
512 | } |
513 | else |
514 | Perl_croak(aTHX_ "lobj is not of type version"); |
515 | |
137d6fc0 |
516 | PUSHs(sv_2mortal(vstringify(lobj))); |
41be1fbd |
517 | |
518 | PUTBACK; |
519 | return; |
520 | } |
439cb1c4 |
521 | } |
522 | |
523 | XS(XS_version_numify) |
524 | { |
97aff369 |
525 | dVAR; |
41be1fbd |
526 | dXSARGS; |
58c0efa5 |
527 | PERL_UNUSED_ARG(cv); |
41be1fbd |
528 | if (items < 1) |
529 | Perl_croak(aTHX_ "Usage: version::numify(lobj, ...)"); |
530 | SP -= items; |
531 | { |
7452cf6a |
532 | SV * lobj; |
41be1fbd |
533 | |
534 | if (sv_derived_from(ST(0), "version")) { |
9137345a |
535 | lobj = SvRV(ST(0)); |
41be1fbd |
536 | } |
537 | else |
538 | Perl_croak(aTHX_ "lobj is not of type version"); |
539 | |
137d6fc0 |
540 | PUSHs(sv_2mortal(vnumify(lobj))); |
41be1fbd |
541 | |
542 | PUTBACK; |
543 | return; |
544 | } |
439cb1c4 |
545 | } |
546 | |
9137345a |
547 | XS(XS_version_normal) |
548 | { |
97aff369 |
549 | dVAR; |
9137345a |
550 | dXSARGS; |
58c0efa5 |
551 | PERL_UNUSED_ARG(cv); |
9137345a |
552 | if (items < 1) |
553 | Perl_croak(aTHX_ "Usage: version::normal(lobj, ...)"); |
554 | SP -= items; |
555 | { |
7452cf6a |
556 | SV * lobj; |
9137345a |
557 | |
558 | if (sv_derived_from(ST(0), "version")) { |
559 | lobj = SvRV(ST(0)); |
560 | } |
561 | else |
562 | Perl_croak(aTHX_ "lobj is not of type version"); |
563 | |
564 | PUSHs(sv_2mortal(vnormal(lobj))); |
565 | |
566 | PUTBACK; |
567 | return; |
568 | } |
569 | } |
570 | |
439cb1c4 |
571 | XS(XS_version_vcmp) |
572 | { |
97aff369 |
573 | dVAR; |
41be1fbd |
574 | dXSARGS; |
58c0efa5 |
575 | PERL_UNUSED_ARG(cv); |
41be1fbd |
576 | if (items < 1) |
577 | Perl_croak(aTHX_ "Usage: version::vcmp(lobj, ...)"); |
578 | SP -= items; |
579 | { |
7452cf6a |
580 | SV * lobj; |
41be1fbd |
581 | |
582 | if (sv_derived_from(ST(0), "version")) { |
9137345a |
583 | lobj = SvRV(ST(0)); |
41be1fbd |
584 | } |
585 | else |
586 | Perl_croak(aTHX_ "lobj is not of type version"); |
587 | |
588 | { |
589 | SV *rs; |
590 | SV *rvs; |
591 | SV * robj = ST(1); |
7452cf6a |
592 | const IV swap = (IV)SvIV(ST(2)); |
41be1fbd |
593 | |
594 | if ( ! sv_derived_from(robj, "version") ) |
595 | { |
596 | robj = new_version(robj); |
597 | } |
598 | rvs = SvRV(robj); |
599 | |
600 | if ( swap ) |
601 | { |
602 | rs = newSViv(vcmp(rvs,lobj)); |
603 | } |
604 | else |
605 | { |
606 | rs = newSViv(vcmp(lobj,rvs)); |
607 | } |
608 | |
137d6fc0 |
609 | PUSHs(sv_2mortal(rs)); |
41be1fbd |
610 | } |
611 | |
612 | PUTBACK; |
613 | return; |
614 | } |
439cb1c4 |
615 | } |
616 | |
617 | XS(XS_version_boolean) |
618 | { |
97aff369 |
619 | dVAR; |
620 | dXSARGS; |
58c0efa5 |
621 | PERL_UNUSED_ARG(cv); |
97aff369 |
622 | if (items < 1) |
623 | Perl_croak(aTHX_ "Usage: version::boolean(lobj, ...)"); |
624 | SP -= items; |
c4420975 |
625 | if (sv_derived_from(ST(0), "version")) { |
626 | SV * const lobj = SvRV(ST(0)); |
396482e1 |
627 | SV * const rs = newSViv( vcmp(lobj,new_version(newSVpvs("0"))) ); |
c4420975 |
628 | PUSHs(sv_2mortal(rs)); |
629 | PUTBACK; |
630 | return; |
631 | } |
632 | else |
633 | Perl_croak(aTHX_ "lobj is not of type version"); |
439cb1c4 |
634 | } |
635 | |
636 | XS(XS_version_noop) |
637 | { |
97aff369 |
638 | dVAR; |
2dfd8427 |
639 | dXSARGS; |
58c0efa5 |
640 | PERL_UNUSED_ARG(cv); |
2dfd8427 |
641 | if (items < 1) |
642 | Perl_croak(aTHX_ "Usage: version::noop(lobj, ...)"); |
643 | if (sv_derived_from(ST(0), "version")) |
644 | Perl_croak(aTHX_ "operation not supported with version object"); |
645 | else |
646 | Perl_croak(aTHX_ "lobj is not of type version"); |
647 | #ifndef HASATTRIBUTE_NORETURN |
648 | XSRETURN_EMPTY; |
649 | #endif |
439cb1c4 |
650 | } |
651 | |
c8d69e4a |
652 | XS(XS_version_is_alpha) |
653 | { |
97aff369 |
654 | dVAR; |
c8d69e4a |
655 | dXSARGS; |
58c0efa5 |
656 | PERL_UNUSED_ARG(cv); |
c8d69e4a |
657 | if (items != 1) |
658 | Perl_croak(aTHX_ "Usage: version::is_alpha(lobj)"); |
659 | SP -= items; |
c4420975 |
660 | if (sv_derived_from(ST(0), "version")) { |
661 | SV * const lobj = ST(0); |
662 | if ( hv_exists((HV*)SvRV(lobj), "alpha", 5 ) ) |
663 | XSRETURN_YES; |
664 | else |
665 | XSRETURN_NO; |
c8d69e4a |
666 | PUTBACK; |
667 | return; |
668 | } |
c4420975 |
669 | else |
670 | Perl_croak(aTHX_ "lobj is not of type version"); |
c8d69e4a |
671 | } |
672 | |
137d6fc0 |
673 | XS(XS_version_qv) |
674 | { |
97aff369 |
675 | dVAR; |
137d6fc0 |
676 | dXSARGS; |
58c0efa5 |
677 | PERL_UNUSED_ARG(cv); |
137d6fc0 |
678 | if (items != 1) |
679 | Perl_croak(aTHX_ "Usage: version::qv(ver)"); |
680 | SP -= items; |
681 | { |
682 | SV * ver = ST(0); |
c4420975 |
683 | if ( !SvVOK(ver) ) { /* only need to do with if not already v-string */ |
ac0e6a2f |
684 | SV * const rv = sv_newmortal(); |
685 | sv_setsv(rv,ver); /* make a duplicate */ |
686 | upg_version(rv, TRUE); |
687 | PUSHs(rv); |
137d6fc0 |
688 | } |
689 | else |
690 | { |
691 | PUSHs(sv_2mortal(new_version(ver))); |
692 | } |
693 | |
694 | PUTBACK; |
695 | return; |
696 | } |
697 | } |
698 | |
8800c35a |
699 | XS(XS_utf8_is_utf8) |
700 | { |
97aff369 |
701 | dVAR; |
41be1fbd |
702 | dXSARGS; |
58c0efa5 |
703 | PERL_UNUSED_ARG(cv); |
41be1fbd |
704 | if (items != 1) |
705 | Perl_croak(aTHX_ "Usage: utf8::is_utf8(sv)"); |
c4420975 |
706 | else { |
707 | const SV * const sv = ST(0); |
708 | if (SvUTF8(sv)) |
709 | XSRETURN_YES; |
710 | else |
711 | XSRETURN_NO; |
41be1fbd |
712 | } |
713 | XSRETURN_EMPTY; |
8800c35a |
714 | } |
715 | |
1b026014 |
716 | XS(XS_utf8_valid) |
717 | { |
97aff369 |
718 | dVAR; |
41be1fbd |
719 | dXSARGS; |
58c0efa5 |
720 | PERL_UNUSED_ARG(cv); |
41be1fbd |
721 | if (items != 1) |
722 | Perl_croak(aTHX_ "Usage: utf8::valid(sv)"); |
c4420975 |
723 | else { |
724 | SV * const sv = ST(0); |
725 | STRLEN len; |
726 | const char * const s = SvPV_const(sv,len); |
727 | if (!SvUTF8(sv) || is_utf8_string((const U8*)s,len)) |
728 | XSRETURN_YES; |
729 | else |
730 | XSRETURN_NO; |
731 | } |
41be1fbd |
732 | XSRETURN_EMPTY; |
1b026014 |
733 | } |
734 | |
735 | XS(XS_utf8_encode) |
736 | { |
97aff369 |
737 | dVAR; |
1b026014 |
738 | dXSARGS; |
58c0efa5 |
739 | PERL_UNUSED_ARG(cv); |
1b026014 |
740 | if (items != 1) |
741 | Perl_croak(aTHX_ "Usage: utf8::encode(sv)"); |
c4420975 |
742 | sv_utf8_encode(ST(0)); |
1b026014 |
743 | XSRETURN_EMPTY; |
744 | } |
745 | |
746 | XS(XS_utf8_decode) |
747 | { |
97aff369 |
748 | dVAR; |
1b026014 |
749 | dXSARGS; |
58c0efa5 |
750 | PERL_UNUSED_ARG(cv); |
1b026014 |
751 | if (items != 1) |
752 | Perl_croak(aTHX_ "Usage: utf8::decode(sv)"); |
c4420975 |
753 | else { |
754 | SV * const sv = ST(0); |
6867be6d |
755 | const bool RETVAL = sv_utf8_decode(sv); |
1b026014 |
756 | ST(0) = boolSV(RETVAL); |
757 | sv_2mortal(ST(0)); |
758 | } |
759 | XSRETURN(1); |
760 | } |
761 | |
762 | XS(XS_utf8_upgrade) |
763 | { |
97aff369 |
764 | dVAR; |
1b026014 |
765 | dXSARGS; |
58c0efa5 |
766 | PERL_UNUSED_ARG(cv); |
1b026014 |
767 | if (items != 1) |
768 | Perl_croak(aTHX_ "Usage: utf8::upgrade(sv)"); |
c4420975 |
769 | else { |
770 | SV * const sv = ST(0); |
1b026014 |
771 | STRLEN RETVAL; |
772 | dXSTARG; |
773 | |
774 | RETVAL = sv_utf8_upgrade(sv); |
775 | XSprePUSH; PUSHi((IV)RETVAL); |
776 | } |
777 | XSRETURN(1); |
778 | } |
779 | |
780 | XS(XS_utf8_downgrade) |
781 | { |
97aff369 |
782 | dVAR; |
1b026014 |
783 | dXSARGS; |
58c0efa5 |
784 | PERL_UNUSED_ARG(cv); |
1b026014 |
785 | if (items < 1 || items > 2) |
786 | Perl_croak(aTHX_ "Usage: utf8::downgrade(sv, failok=0)"); |
c4420975 |
787 | else { |
788 | SV * const sv = ST(0); |
6867be6d |
789 | const bool failok = (items < 2) ? 0 : (int)SvIV(ST(1)); |
790 | const bool RETVAL = sv_utf8_downgrade(sv, failok); |
1b026014 |
791 | |
1b026014 |
792 | ST(0) = boolSV(RETVAL); |
793 | sv_2mortal(ST(0)); |
794 | } |
795 | XSRETURN(1); |
796 | } |
797 | |
798 | XS(XS_utf8_native_to_unicode) |
799 | { |
97aff369 |
800 | dVAR; |
1b026014 |
801 | dXSARGS; |
6867be6d |
802 | const UV uv = SvUV(ST(0)); |
58c0efa5 |
803 | PERL_UNUSED_ARG(cv); |
b7953727 |
804 | |
805 | if (items > 1) |
806 | Perl_croak(aTHX_ "Usage: utf8::native_to_unicode(sv)"); |
807 | |
1b026014 |
808 | ST(0) = sv_2mortal(newSViv(NATIVE_TO_UNI(uv))); |
809 | XSRETURN(1); |
810 | } |
811 | |
812 | XS(XS_utf8_unicode_to_native) |
813 | { |
97aff369 |
814 | dVAR; |
1b026014 |
815 | dXSARGS; |
6867be6d |
816 | const UV uv = SvUV(ST(0)); |
58c0efa5 |
817 | PERL_UNUSED_ARG(cv); |
b7953727 |
818 | |
819 | if (items > 1) |
820 | Perl_croak(aTHX_ "Usage: utf8::unicode_to_native(sv)"); |
821 | |
1b026014 |
822 | ST(0) = sv_2mortal(newSViv(UNI_TO_NATIVE(uv))); |
823 | XSRETURN(1); |
824 | } |
825 | |
14a976d6 |
826 | XS(XS_Internals_SvREADONLY) /* This is dangerous stuff. */ |
29569577 |
827 | { |
97aff369 |
828 | dVAR; |
29569577 |
829 | dXSARGS; |
c4420975 |
830 | SV * const sv = SvRV(ST(0)); |
58c0efa5 |
831 | PERL_UNUSED_ARG(cv); |
6867be6d |
832 | |
29569577 |
833 | if (items == 1) { |
834 | if (SvREADONLY(sv)) |
835 | XSRETURN_YES; |
836 | else |
837 | XSRETURN_NO; |
838 | } |
839 | else if (items == 2) { |
840 | if (SvTRUE(ST(1))) { |
841 | SvREADONLY_on(sv); |
842 | XSRETURN_YES; |
843 | } |
844 | else { |
14a976d6 |
845 | /* I hope you really know what you are doing. */ |
29569577 |
846 | SvREADONLY_off(sv); |
847 | XSRETURN_NO; |
848 | } |
849 | } |
14a976d6 |
850 | XSRETURN_UNDEF; /* Can't happen. */ |
29569577 |
851 | } |
852 | |
14a976d6 |
853 | XS(XS_Internals_SvREFCNT) /* This is dangerous stuff. */ |
29569577 |
854 | { |
97aff369 |
855 | dVAR; |
29569577 |
856 | dXSARGS; |
c4420975 |
857 | SV * const sv = SvRV(ST(0)); |
58c0efa5 |
858 | PERL_UNUSED_ARG(cv); |
6867be6d |
859 | |
29569577 |
860 | if (items == 1) |
14a976d6 |
861 | XSRETURN_IV(SvREFCNT(sv) - 1); /* Minus the ref created for us. */ |
29569577 |
862 | else if (items == 2) { |
14a976d6 |
863 | /* I hope you really know what you are doing. */ |
29569577 |
864 | SvREFCNT(sv) = SvIV(ST(1)); |
865 | XSRETURN_IV(SvREFCNT(sv)); |
866 | } |
14a976d6 |
867 | XSRETURN_UNDEF; /* Can't happen. */ |
29569577 |
868 | } |
869 | |
f044d0d1 |
870 | XS(XS_Internals_hv_clear_placehold) |
dfd4ef2f |
871 | { |
97aff369 |
872 | dVAR; |
dfd4ef2f |
873 | dXSARGS; |
58c0efa5 |
874 | PERL_UNUSED_ARG(cv); |
6867be6d |
875 | |
3540d4ce |
876 | if (items != 1) |
877 | Perl_croak(aTHX_ "Usage: UNIVERSAL::hv_clear_placeholders(hv)"); |
c4420975 |
878 | else { |
879 | HV * const hv = (HV *) SvRV(ST(0)); |
880 | hv_clear_placeholders(hv); |
881 | XSRETURN(0); |
882 | } |
dfd4ef2f |
883 | } |
39f7a870 |
884 | |
39cff0d9 |
885 | XS(XS_Regexp_DESTROY) |
886 | { |
96a5add6 |
887 | PERL_UNUSED_CONTEXT; |
53c1dcc0 |
888 | PERL_UNUSED_ARG(cv); |
39cff0d9 |
889 | } |
890 | |
39f7a870 |
891 | XS(XS_PerlIO_get_layers) |
892 | { |
97aff369 |
893 | dVAR; |
39f7a870 |
894 | dXSARGS; |
58c0efa5 |
895 | PERL_UNUSED_ARG(cv); |
39f7a870 |
896 | if (items < 1 || items % 2 == 0) |
897 | Perl_croak(aTHX_ "Usage: PerlIO_get_layers(filehandle[,args])"); |
5fef3b4a |
898 | #ifdef USE_PERLIO |
39f7a870 |
899 | { |
900 | SV * sv; |
901 | GV * gv; |
902 | IO * io; |
903 | bool input = TRUE; |
904 | bool details = FALSE; |
905 | |
906 | if (items > 1) { |
c4420975 |
907 | SV * const *svp; |
39f7a870 |
908 | for (svp = MARK + 2; svp <= SP; svp += 2) { |
c4420975 |
909 | SV * const * const varp = svp; |
910 | SV * const * const valp = svp + 1; |
39f7a870 |
911 | STRLEN klen; |
c4420975 |
912 | const char * const key = SvPV_const(*varp, klen); |
39f7a870 |
913 | |
914 | switch (*key) { |
915 | case 'i': |
916 | if (klen == 5 && memEQ(key, "input", 5)) { |
917 | input = SvTRUE(*valp); |
918 | break; |
919 | } |
920 | goto fail; |
921 | case 'o': |
922 | if (klen == 6 && memEQ(key, "output", 6)) { |
923 | input = !SvTRUE(*valp); |
924 | break; |
925 | } |
926 | goto fail; |
927 | case 'd': |
928 | if (klen == 7 && memEQ(key, "details", 7)) { |
929 | details = SvTRUE(*valp); |
930 | break; |
931 | } |
932 | goto fail; |
933 | default: |
934 | fail: |
935 | Perl_croak(aTHX_ |
936 | "get_layers: unknown argument '%s'", |
937 | key); |
938 | } |
939 | } |
940 | |
941 | SP -= (items - 1); |
942 | } |
943 | |
944 | sv = POPs; |
945 | gv = (GV*)sv; |
946 | |
947 | if (!isGV(sv)) { |
948 | if (SvROK(sv) && isGV(SvRV(sv))) |
949 | gv = (GV*)SvRV(sv); |
671d49be |
950 | else if (SvPOKp(sv)) |
f776e3cd |
951 | gv = gv_fetchsv(sv, 0, SVt_PVIO); |
39f7a870 |
952 | } |
953 | |
954 | if (gv && (io = GvIO(gv))) { |
955 | dTARGET; |
c4420975 |
956 | AV* const av = PerlIO_get_layers(aTHX_ input ? |
39f7a870 |
957 | IoIFP(io) : IoOFP(io)); |
958 | I32 i; |
c4420975 |
959 | const I32 last = av_len(av); |
39f7a870 |
960 | I32 nitem = 0; |
961 | |
962 | for (i = last; i >= 0; i -= 3) { |
c4420975 |
963 | SV * const * const namsvp = av_fetch(av, i - 2, FALSE); |
964 | SV * const * const argsvp = av_fetch(av, i - 1, FALSE); |
965 | SV * const * const flgsvp = av_fetch(av, i, FALSE); |
39f7a870 |
966 | |
c4420975 |
967 | const bool namok = namsvp && *namsvp && SvPOK(*namsvp); |
968 | const bool argok = argsvp && *argsvp && SvPOK(*argsvp); |
969 | const bool flgok = flgsvp && *flgsvp && SvIOK(*flgsvp); |
39f7a870 |
970 | |
971 | if (details) { |
ec3bab8e |
972 | XPUSHs(namok |
973 | ? newSVpvn(SvPVX_const(*namsvp), SvCUR(*namsvp)) |
974 | : &PL_sv_undef); |
975 | XPUSHs(argok |
976 | ? newSVpvn(SvPVX_const(*argsvp), SvCUR(*argsvp)) |
977 | : &PL_sv_undef); |
39f7a870 |
978 | if (flgok) |
979 | XPUSHi(SvIVX(*flgsvp)); |
980 | else |
981 | XPUSHs(&PL_sv_undef); |
982 | nitem += 3; |
983 | } |
984 | else { |
985 | if (namok && argok) |
986 | XPUSHs(Perl_newSVpvf(aTHX_ "%"SVf"(%"SVf")", |
be2597df |
987 | SVfARG(*namsvp), |
988 | SVfARG(*argsvp))); |
39f7a870 |
989 | else if (namok) |
95b63a38 |
990 | XPUSHs(Perl_newSVpvf(aTHX_ "%"SVf, |
be2597df |
991 | SVfARG(*namsvp))); |
39f7a870 |
992 | else |
993 | XPUSHs(&PL_sv_undef); |
994 | nitem++; |
995 | if (flgok) { |
c4420975 |
996 | const IV flags = SvIVX(*flgsvp); |
39f7a870 |
997 | |
998 | if (flags & PERLIO_F_UTF8) { |
396482e1 |
999 | XPUSHs(newSVpvs("utf8")); |
39f7a870 |
1000 | nitem++; |
1001 | } |
1002 | } |
1003 | } |
1004 | } |
1005 | |
1006 | SvREFCNT_dec(av); |
1007 | |
1008 | XSRETURN(nitem); |
1009 | } |
1010 | } |
5fef3b4a |
1011 | #endif |
39f7a870 |
1012 | |
1013 | XSRETURN(0); |
1014 | } |
1015 | |
9a7034eb |
1016 | XS(XS_Internals_hash_seed) |
c910b28a |
1017 | { |
97aff369 |
1018 | dVAR; |
c85d3f85 |
1019 | /* Using dXSARGS would also have dITEM and dSP, |
1020 | * which define 2 unused local variables. */ |
557b887a |
1021 | dAXMARK; |
53c1dcc0 |
1022 | PERL_UNUSED_ARG(cv); |
ad73156c |
1023 | PERL_UNUSED_VAR(mark); |
81eaca17 |
1024 | XSRETURN_UV(PERL_HASH_SEED); |
c910b28a |
1025 | } |
1026 | |
008fb0c0 |
1027 | XS(XS_Internals_rehash_seed) |
8e90d776 |
1028 | { |
97aff369 |
1029 | dVAR; |
8e90d776 |
1030 | /* Using dXSARGS would also have dITEM and dSP, |
1031 | * which define 2 unused local variables. */ |
557b887a |
1032 | dAXMARK; |
53c1dcc0 |
1033 | PERL_UNUSED_ARG(cv); |
ad73156c |
1034 | PERL_UNUSED_VAR(mark); |
008fb0c0 |
1035 | XSRETURN_UV(PL_rehash_seed); |
8e90d776 |
1036 | } |
1037 | |
05619474 |
1038 | XS(XS_Internals_HvREHASH) /* Subject to change */ |
1039 | { |
97aff369 |
1040 | dVAR; |
05619474 |
1041 | dXSARGS; |
58c0efa5 |
1042 | PERL_UNUSED_ARG(cv); |
05619474 |
1043 | if (SvROK(ST(0))) { |
c4420975 |
1044 | const HV * const hv = (HV *) SvRV(ST(0)); |
05619474 |
1045 | if (items == 1 && SvTYPE(hv) == SVt_PVHV) { |
1046 | if (HvREHASH(hv)) |
1047 | XSRETURN_YES; |
1048 | else |
1049 | XSRETURN_NO; |
1050 | } |
1051 | } |
1052 | Perl_croak(aTHX_ "Internals::HvREHASH $hashref"); |
1053 | } |
241d1a3b |
1054 | |
80305961 |
1055 | XS(XS_re_is_regexp) |
1056 | { |
1057 | dVAR; |
1058 | dXSARGS; |
1059 | if (items != 1) |
1060 | Perl_croak(aTHX_ "Usage: %s(%s)", "re::is_regexp", "sv"); |
1061 | PERL_UNUSED_VAR(cv); /* -W */ |
1062 | PERL_UNUSED_VAR(ax); /* -Wall */ |
1063 | SP -= items; |
1064 | { |
1065 | SV * sv = ST(0); |
1066 | if ( Perl_get_re_arg( aTHX_ sv, 0, NULL ) ) |
1067 | { |
1068 | XSRETURN_YES; |
1069 | } else { |
1070 | XSRETURN_NO; |
1071 | } |
1072 | /* NOTREACHED */ |
1073 | PUTBACK; |
1074 | return; |
1075 | } |
1076 | } |
1077 | |
1078 | XS(XS_re_regname) |
1079 | { |
1080 | |
1081 | dVAR; |
1082 | dXSARGS; |
28d8d7f4 |
1083 | if (items < 1 || items > 2) |
1084 | Perl_croak(aTHX_ "Usage: %s(%s)", "re::regname", "name[, all ]"); |
80305961 |
1085 | PERL_UNUSED_VAR(cv); /* -W */ |
1086 | PERL_UNUSED_VAR(ax); /* -Wall */ |
1087 | SP -= items; |
1088 | { |
1089 | SV * sv = ST(0); |
80305961 |
1090 | SV * all; |
28d8d7f4 |
1091 | regexp *re = PL_curpm ? PM_GETRE(PL_curpm) : NULL; |
80305961 |
1092 | SV *bufs = NULL; |
1093 | |
1094 | if (items < 2) |
80305961 |
1095 | all = NULL; |
1096 | else { |
28d8d7f4 |
1097 | all = ST(1); |
80305961 |
1098 | } |
1099 | { |
80305961 |
1100 | if (SvPOK(sv) && re && re->paren_names) { |
2fdbfb4d |
1101 | bufs = CALLREG_NAMEDBUF_FETCH(re,sv,all && SvTRUE(all)); |
80305961 |
1102 | if (bufs) { |
1103 | if (all && SvTRUE(all)) |
1104 | XPUSHs(newRV(bufs)); |
1105 | else |
1106 | XPUSHs(SvREFCNT_inc(bufs)); |
1107 | XSRETURN(1); |
1108 | } |
1109 | } |
1110 | XSRETURN_UNDEF; |
1111 | } |
1112 | PUTBACK; |
1113 | return; |
1114 | } |
1115 | } |
1116 | |
1117 | XS(XS_re_regnames) |
1118 | { |
1119 | dVAR; |
1120 | dXSARGS; |
28d8d7f4 |
1121 | if (items < 0 || items > 1) |
1122 | Perl_croak(aTHX_ "Usage: %s(%s)", "re::regnames", "[all]"); |
80305961 |
1123 | PERL_UNUSED_VAR(cv); /* -W */ |
1124 | PERL_UNUSED_VAR(ax); /* -Wall */ |
1125 | SP -= items; |
1126 | { |
80305961 |
1127 | SV * all; |
28d8d7f4 |
1128 | regexp *re = PL_curpm ? PM_GETRE(PL_curpm) : NULL; |
80305961 |
1129 | IV count = 0; |
1130 | |
1131 | if (items < 1) |
80305961 |
1132 | all = NULL; |
1133 | else { |
28d8d7f4 |
1134 | all = ST(0); |
80305961 |
1135 | } |
1136 | { |
80305961 |
1137 | if (re && re->paren_names) { |
1138 | HV *hv= re->paren_names; |
1139 | (void)hv_iterinit(hv); |
1140 | while (1) { |
1141 | HE *temphe = hv_iternext_flags(hv,0); |
1142 | if (temphe) { |
1143 | IV i; |
1144 | IV parno = 0; |
1145 | SV* sv_dat = HeVAL(temphe); |
1146 | I32 *nums = (I32*)SvPVX(sv_dat); |
1147 | for ( i = 0; i < SvIVX(sv_dat); i++ ) { |
1148 | if ((I32)(re->lastcloseparen) >= nums[i] && |
f0ab9afb |
1149 | re->offs[nums[i]].start != -1 && |
1150 | re->offs[nums[i]].end != -1) |
80305961 |
1151 | { |
1152 | parno = nums[i]; |
1153 | break; |
1154 | } |
1155 | } |
1156 | if (parno || (all && SvTRUE(all))) { |
1157 | STRLEN len; |
1158 | char *pv = HePV(temphe, len); |
1159 | if ( GIMME_V == G_ARRAY ) |
1160 | XPUSHs(newSVpvn(pv,len)); |
1161 | count++; |
1162 | } |
1163 | } else { |
1164 | break; |
1165 | } |
1166 | } |
1167 | } |
1168 | if ( GIMME_V == G_ARRAY ) |
1169 | XSRETURN(count); |
1170 | else |
1171 | XSRETURN_UNDEF; |
1172 | } |
1173 | PUTBACK; |
1174 | return; |
1175 | } |
1176 | } |
1177 | |
1178 | |
1179 | XS(XS_re_regnames_iterinit) |
1180 | { |
1181 | dVAR; |
1182 | dXSARGS; |
a2e78f72 |
1183 | if (items != 0) |
1184 | Perl_croak(aTHX_ "Usage: re::regnames_iterinit()"); |
80305961 |
1185 | PERL_UNUSED_VAR(cv); /* -W */ |
1186 | PERL_UNUSED_VAR(ax); /* -Wall */ |
1187 | SP -= items; |
1188 | { |
28d8d7f4 |
1189 | regexp *re = PL_curpm ? PM_GETRE(PL_curpm) : NULL; |
1190 | if (re && re->paren_names) { |
1191 | (void)hv_iterinit(re->paren_names); |
1192 | XPUSHs(newSViv(HvTOTALKEYS(re->paren_names))); |
1193 | } else { |
1194 | XSRETURN_UNDEF; |
1195 | } |
80305961 |
1196 | PUTBACK; |
1197 | return; |
1198 | } |
1199 | } |
1200 | |
1201 | |
1202 | XS(XS_re_regnames_iternext) |
1203 | { |
1204 | dVAR; |
1205 | dXSARGS; |
28d8d7f4 |
1206 | if (items < 0 || items > 1) |
1207 | Perl_croak(aTHX_ "Usage: %s(%s)", "re::regnames_iternext", "[all]"); |
80305961 |
1208 | PERL_UNUSED_VAR(cv); /* -W */ |
1209 | PERL_UNUSED_VAR(ax); /* -Wall */ |
1210 | SP -= items; |
1211 | { |
80305961 |
1212 | SV * all; |
28d8d7f4 |
1213 | regexp *re = PL_curpm ? PM_GETRE(PL_curpm) : NULL; |
80305961 |
1214 | |
1215 | if (items < 1) |
80305961 |
1216 | all = NULL; |
1217 | else { |
28d8d7f4 |
1218 | all = ST(0); |
80305961 |
1219 | } |
28d8d7f4 |
1220 | if (re && re->paren_names) { |
1221 | HV *hv= re->paren_names; |
1222 | while (1) { |
1223 | HE *temphe = hv_iternext_flags(hv,0); |
1224 | if (temphe) { |
1225 | IV i; |
1226 | IV parno = 0; |
1227 | SV* sv_dat = HeVAL(temphe); |
1228 | I32 *nums = (I32*)SvPVX(sv_dat); |
1229 | for ( i = 0; i < SvIVX(sv_dat); i++ ) { |
1230 | if ((I32)(re->lastcloseparen) >= nums[i] && |
f0ab9afb |
1231 | re->offs[nums[i]].start != -1 && |
1232 | re->offs[nums[i]].end != -1) |
28d8d7f4 |
1233 | { |
1234 | parno = nums[i]; |
1235 | break; |
80305961 |
1236 | } |
80305961 |
1237 | } |
28d8d7f4 |
1238 | if (parno || (all && SvTRUE(all))) { |
1239 | STRLEN len; |
1240 | char *pv = HePV(temphe, len); |
1241 | XPUSHs(newSVpvn(pv,len)); |
1242 | XSRETURN(1); |
1243 | } |
1244 | } else { |
1245 | break; |
80305961 |
1246 | } |
1247 | } |
28d8d7f4 |
1248 | } |
1249 | XSRETURN_UNDEF; |
80305961 |
1250 | PUTBACK; |
1251 | return; |
1252 | } |
1253 | } |
1254 | |
1255 | |
1256 | XS(XS_re_regnames_count) |
1257 | { |
28d8d7f4 |
1258 | regexp *re = PL_curpm ? PM_GETRE(PL_curpm) : NULL; |
80305961 |
1259 | dVAR; |
1260 | dXSARGS; |
1261 | |
28d8d7f4 |
1262 | if (items != 0) |
1263 | Perl_croak(aTHX_ "Usage: %s(%s)", "re::regnames_count", ""); |
80305961 |
1264 | PERL_UNUSED_VAR(cv); /* -W */ |
1265 | PERL_UNUSED_VAR(ax); /* -Wall */ |
1266 | SP -= items; |
28d8d7f4 |
1267 | |
80305961 |
1268 | if (re && re->paren_names) { |
1269 | XPUSHs(newSViv(HvTOTALKEYS(re->paren_names))); |
1270 | } else { |
1271 | XSRETURN_UNDEF; |
1272 | } |
1273 | PUTBACK; |
1274 | return; |
1275 | } |
1276 | |
1277 | |
241d1a3b |
1278 | /* |
1279 | * Local variables: |
1280 | * c-indentation-style: bsd |
1281 | * c-basic-offset: 4 |
1282 | * indent-tabs-mode: t |
1283 | * End: |
1284 | * |
37442d52 |
1285 | * ex: set ts=8 sts=4 sw=4 noet: |
1286 | */ |