Commit | Line | Data |
d6376244 |
1 | /* universal.c |
2 | * |
b5f8cc5c |
3 | * Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, |
1129b882 |
4 | * 2005, 2006, 2007, 2008 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 | /* |
4ac71550 |
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 history |
15 | * |
16 | * [p.54 of _The Lord of the Rings_, I/ii: "The Shadow of the Past"] |
d31a8517 |
17 | */ |
18 | |
166f8a29 |
19 | /* This file contains the code that implements the functions in Perl's |
20 | * UNIVERSAL package, such as UNIVERSAL->can(). |
192b9cd1 |
21 | * |
22 | * It is also used to store XS functions that need to be present in |
23 | * miniperl for a lack of a better place to put them. It might be |
24 | * clever to move them to seperate XS files which would then be pulled |
25 | * in by some to-be-written build process. |
166f8a29 |
26 | */ |
27 | |
6d4a7be2 |
28 | #include "EXTERN.h" |
864dbfa3 |
29 | #define PERL_IN_UNIVERSAL_C |
6d4a7be2 |
30 | #include "perl.h" |
6d4a7be2 |
31 | |
39f7a870 |
32 | #ifdef USE_PERLIO |
33 | #include "perliol.h" /* For the PERLIO_F_XXX */ |
34 | #endif |
35 | |
aea32303 |
36 | static HV * |
37 | S_get_isa_hash(pTHX_ HV *const stash) |
00bf72ff |
38 | { |
39 | dVAR; |
40 | struct mro_meta *const meta = HvMROMETA(stash); |
41 | |
42 | PERL_ARGS_ASSERT_GET_ISA_HASH; |
43 | |
44 | if (!meta->isa) { |
45 | AV *const isa = mro_get_linear_isa(stash); |
46 | if (!meta->isa) { |
47 | HV *const isa_hash = newHV(); |
48 | /* Linearisation didn't build it for us, so do it here. */ |
49 | SV *const *svp = AvARRAY(isa); |
50 | SV *const *const svp_end = svp + AvFILLp(isa) + 1; |
51 | const HEK *const canon_name = HvNAME_HEK(stash); |
52 | |
53 | while (svp < svp_end) { |
54 | (void) hv_store_ent(isa_hash, *svp++, &PL_sv_undef, 0); |
55 | } |
56 | |
57 | (void) hv_common(isa_hash, NULL, HEK_KEY(canon_name), |
58 | HEK_LEN(canon_name), HEK_FLAGS(canon_name), |
59 | HV_FETCH_ISSTORE, &PL_sv_undef, |
60 | HEK_HASH(canon_name)); |
61 | (void) hv_store(isa_hash, "UNIVERSAL", 9, &PL_sv_undef, 0); |
62 | |
63 | SvREADONLY_on(isa_hash); |
64 | |
65 | meta->isa = isa_hash; |
66 | } |
67 | } |
68 | return meta->isa; |
69 | } |
70 | |
6d4a7be2 |
71 | /* |
72 | * Contributed by Graham Barr <Graham.Barr@tiuk.ti.com> |
73 | * The main guts of traverse_isa was actually copied from gv_fetchmeth |
74 | */ |
75 | |
a9ec700e |
76 | STATIC bool |
515a4f72 |
77 | S_isa_lookup(pTHX_ HV *stash, const char * const name) |
6d4a7be2 |
78 | { |
97aff369 |
79 | dVAR; |
a49ba3fc |
80 | const struct mro_meta *const meta = HvMROMETA(stash); |
aea32303 |
81 | HV *const isa = meta->isa ? meta->isa : S_get_isa_hash(aTHX_ stash); |
a49ba3fc |
82 | STRLEN len = strlen(name); |
83 | const HV *our_stash; |
6d4a7be2 |
84 | |
7918f24d |
85 | PERL_ARGS_ASSERT_ISA_LOOKUP; |
86 | |
a49ba3fc |
87 | if (hv_common(isa, NULL, name, len, 0 /* No "UTF-8" flag possible with only |
88 | a char * argument*/, |
89 | HV_FETCH_ISEXISTS, NULL, 0)) { |
90 | /* Direct name lookup worked. */ |
a9ec700e |
91 | return TRUE; |
a49ba3fc |
92 | } |
6d4a7be2 |
93 | |
a49ba3fc |
94 | /* A stash/class can go by many names (ie. User == main::User), so |
95 | we use the name in the stash itself, which is canonical. */ |
96 | our_stash = gv_stashpvn(name, len, 0); |
97 | |
98 | if (our_stash) { |
99 | HEK *const canon_name = HvNAME_HEK(our_stash); |
a1d407e8 |
100 | |
a49ba3fc |
101 | if (hv_common(isa, NULL, HEK_KEY(canon_name), HEK_LEN(canon_name), |
102 | HEK_FLAGS(canon_name), |
103 | HV_FETCH_ISEXISTS, NULL, HEK_HASH(canon_name))) { |
e1a479c5 |
104 | return TRUE; |
a49ba3fc |
105 | } |
6d4a7be2 |
106 | } |
107 | |
a9ec700e |
108 | return FALSE; |
6d4a7be2 |
109 | } |
110 | |
954c1994 |
111 | /* |
ccfc67b7 |
112 | =head1 SV Manipulation Functions |
113 | |
954c1994 |
114 | =for apidoc sv_derived_from |
115 | |
6885da0e |
116 | Returns a boolean indicating whether the SV is derived from the specified class |
117 | I<at the C level>. To check derivation at the Perl level, call C<isa()> as a |
118 | normal Perl method. |
954c1994 |
119 | |
120 | =cut |
121 | */ |
122 | |
55497cff |
123 | bool |
15f169a1 |
124 | Perl_sv_derived_from(pTHX_ SV *sv, const char *const name) |
55497cff |
125 | { |
97aff369 |
126 | dVAR; |
0b6f4f5c |
127 | HV *stash; |
46e4b22b |
128 | |
7918f24d |
129 | PERL_ARGS_ASSERT_SV_DERIVED_FROM; |
130 | |
5b295bef |
131 | SvGETMAGIC(sv); |
55497cff |
132 | |
133 | if (SvROK(sv)) { |
0b6f4f5c |
134 | const char *type; |
55497cff |
135 | sv = SvRV(sv); |
136 | type = sv_reftype(sv,0); |
0b6f4f5c |
137 | if (type && strEQ(type,name)) |
138 | return TRUE; |
139 | stash = SvOBJECT(sv) ? SvSTASH(sv) : NULL; |
55497cff |
140 | } |
141 | else { |
da51bb9b |
142 | stash = gv_stashsv(sv, 0); |
55497cff |
143 | } |
46e4b22b |
144 | |
4a9e32d8 |
145 | return stash ? isa_lookup(stash, name) : FALSE; |
55497cff |
146 | } |
147 | |
cbc021f9 |
148 | /* |
149 | =for apidoc sv_does |
150 | |
151 | Returns a boolean indicating whether the SV performs a specific, named role. |
152 | The SV can be a Perl object or the name of a Perl class. |
153 | |
154 | =cut |
155 | */ |
156 | |
1b026014 |
157 | #include "XSUB.h" |
158 | |
cbc021f9 |
159 | bool |
15f169a1 |
160 | Perl_sv_does(pTHX_ SV *sv, const char *const name) |
cbc021f9 |
161 | { |
162 | const char *classname; |
163 | bool does_it; |
59e7186f |
164 | SV *methodname; |
cbc021f9 |
165 | dSP; |
7918f24d |
166 | |
167 | PERL_ARGS_ASSERT_SV_DOES; |
168 | |
cbc021f9 |
169 | ENTER; |
170 | SAVETMPS; |
171 | |
172 | SvGETMAGIC(sv); |
173 | |
174 | if (!SvOK(sv) || !(SvROK(sv) || (SvPOK(sv) && SvCUR(sv)) |
175 | || (SvGMAGICAL(sv) && SvPOKp(sv) && SvCUR(sv)))) |
176 | return FALSE; |
177 | |
178 | if (sv_isobject(sv)) { |
179 | classname = sv_reftype(SvRV(sv),TRUE); |
180 | } else { |
94707740 |
181 | classname = SvPV_nolen(sv); |
cbc021f9 |
182 | } |
183 | |
184 | if (strEQ(name,classname)) |
185 | return TRUE; |
186 | |
187 | PUSHMARK(SP); |
188 | XPUSHs(sv); |
6e449a3a |
189 | mXPUSHs(newSVpv(name, 0)); |
cbc021f9 |
190 | PUTBACK; |
191 | |
84bafc02 |
192 | methodname = newSVpvs_flags("isa", SVs_TEMP); |
59e7186f |
193 | /* ugly hack: use the SvSCREAM flag so S_method_common |
194 | * can figure out we're calling DOES() and not isa(), |
195 | * and report eventual errors correctly. --rgs */ |
196 | SvSCREAM_on(methodname); |
197 | call_sv(methodname, G_SCALAR | G_METHOD); |
cbc021f9 |
198 | SPAGAIN; |
199 | |
200 | does_it = SvTRUE( TOPs ); |
201 | FREETMPS; |
202 | LEAVE; |
203 | |
204 | return does_it; |
205 | } |
206 | |
27da23d5 |
207 | PERL_XS_EXPORT_C void XS_UNIVERSAL_isa(pTHX_ CV *cv); |
208 | PERL_XS_EXPORT_C void XS_UNIVERSAL_can(pTHX_ CV *cv); |
cbc021f9 |
209 | PERL_XS_EXPORT_C void XS_UNIVERSAL_DOES(pTHX_ CV *cv); |
27da23d5 |
210 | PERL_XS_EXPORT_C void XS_UNIVERSAL_VERSION(pTHX_ CV *cv); |
439cb1c4 |
211 | XS(XS_version_new); |
212 | XS(XS_version_stringify); |
213 | XS(XS_version_numify); |
9137345a |
214 | XS(XS_version_normal); |
439cb1c4 |
215 | XS(XS_version_vcmp); |
216 | XS(XS_version_boolean); |
2dfd8427 |
217 | #ifdef HASATTRIBUTE_NORETURN |
218 | XS(XS_version_noop) __attribute__noreturn__; |
219 | #else |
439cb1c4 |
220 | XS(XS_version_noop); |
2dfd8427 |
221 | #endif |
c8d69e4a |
222 | XS(XS_version_is_alpha); |
137d6fc0 |
223 | XS(XS_version_qv); |
8800c35a |
224 | XS(XS_utf8_is_utf8); |
1b026014 |
225 | XS(XS_utf8_valid); |
226 | XS(XS_utf8_encode); |
227 | XS(XS_utf8_decode); |
228 | XS(XS_utf8_upgrade); |
229 | XS(XS_utf8_downgrade); |
230 | XS(XS_utf8_unicode_to_native); |
231 | XS(XS_utf8_native_to_unicode); |
29569577 |
232 | XS(XS_Internals_SvREADONLY); |
233 | XS(XS_Internals_SvREFCNT); |
f044d0d1 |
234 | XS(XS_Internals_hv_clear_placehold); |
39f7a870 |
235 | XS(XS_PerlIO_get_layers); |
f63535fc |
236 | XS(XS_Regexp_DESTROY); |
9a7034eb |
237 | XS(XS_Internals_hash_seed); |
008fb0c0 |
238 | XS(XS_Internals_rehash_seed); |
05619474 |
239 | XS(XS_Internals_HvREHASH); |
80305961 |
240 | XS(XS_re_is_regexp); |
192b9cd1 |
241 | XS(XS_re_regname); |
242 | XS(XS_re_regnames); |
80305961 |
243 | XS(XS_re_regnames_count); |
192c1e27 |
244 | XS(XS_re_regexp_pattern); |
192b9cd1 |
245 | XS(XS_Tie_Hash_NamedCapture_FETCH); |
246 | XS(XS_Tie_Hash_NamedCapture_STORE); |
247 | XS(XS_Tie_Hash_NamedCapture_DELETE); |
248 | XS(XS_Tie_Hash_NamedCapture_CLEAR); |
249 | XS(XS_Tie_Hash_NamedCapture_EXISTS); |
86aa3d53 |
250 | XS(XS_Tie_Hash_NamedCapture_FIRSTK); |
251 | XS(XS_Tie_Hash_NamedCapture_NEXTK); |
192b9cd1 |
252 | XS(XS_Tie_Hash_NamedCapture_SCALAR); |
253 | XS(XS_Tie_Hash_NamedCapture_flags); |
0cb96387 |
254 | |
255 | void |
256 | Perl_boot_core_UNIVERSAL(pTHX) |
257 | { |
97aff369 |
258 | dVAR; |
157e3fc8 |
259 | static const char file[] = __FILE__; |
0cb96387 |
260 | |
261 | newXS("UNIVERSAL::isa", XS_UNIVERSAL_isa, file); |
262 | newXS("UNIVERSAL::can", XS_UNIVERSAL_can, file); |
cbc021f9 |
263 | newXS("UNIVERSAL::DOES", XS_UNIVERSAL_DOES, file); |
0cb96387 |
264 | newXS("UNIVERSAL::VERSION", XS_UNIVERSAL_VERSION, file); |
439cb1c4 |
265 | { |
ad63d80f |
266 | /* register the overloading (type 'A') magic */ |
267 | PL_amagic_generation++; |
439cb1c4 |
268 | /* Make it findable via fetchmethod */ |
be2ebcad |
269 | newXS("version::()", XS_version_noop, file); |
439cb1c4 |
270 | newXS("version::new", XS_version_new, file); |
271 | newXS("version::(\"\"", XS_version_stringify, file); |
272 | newXS("version::stringify", XS_version_stringify, file); |
273 | newXS("version::(0+", XS_version_numify, file); |
274 | newXS("version::numify", XS_version_numify, file); |
9137345a |
275 | newXS("version::normal", XS_version_normal, file); |
439cb1c4 |
276 | newXS("version::(cmp", XS_version_vcmp, file); |
277 | newXS("version::(<=>", XS_version_vcmp, file); |
278 | newXS("version::vcmp", XS_version_vcmp, file); |
279 | newXS("version::(bool", XS_version_boolean, file); |
280 | newXS("version::boolean", XS_version_boolean, file); |
281 | newXS("version::(nomethod", XS_version_noop, file); |
282 | newXS("version::noop", XS_version_noop, file); |
c8d69e4a |
283 | newXS("version::is_alpha", XS_version_is_alpha, file); |
137d6fc0 |
284 | newXS("version::qv", XS_version_qv, file); |
439cb1c4 |
285 | } |
8800c35a |
286 | newXS("utf8::is_utf8", XS_utf8_is_utf8, file); |
1b026014 |
287 | newXS("utf8::valid", XS_utf8_valid, file); |
288 | newXS("utf8::encode", XS_utf8_encode, file); |
289 | newXS("utf8::decode", XS_utf8_decode, file); |
290 | newXS("utf8::upgrade", XS_utf8_upgrade, file); |
291 | newXS("utf8::downgrade", XS_utf8_downgrade, file); |
292 | newXS("utf8::native_to_unicode", XS_utf8_native_to_unicode, file); |
293 | newXS("utf8::unicode_to_native", XS_utf8_unicode_to_native, file); |
29569577 |
294 | newXSproto("Internals::SvREADONLY",XS_Internals_SvREADONLY, file, "\\[$%@];$"); |
295 | newXSproto("Internals::SvREFCNT",XS_Internals_SvREFCNT, file, "\\[$%@];$"); |
dfd4ef2f |
296 | newXSproto("Internals::hv_clear_placeholders", |
f044d0d1 |
297 | XS_Internals_hv_clear_placehold, file, "\\%"); |
9d569fce |
298 | newXSproto("PerlIO::get_layers", |
299 | XS_PerlIO_get_layers, file, "*;@"); |
f63535fc |
300 | newXS("Regexp::DESTROY", XS_Regexp_DESTROY, file); |
9a7034eb |
301 | newXSproto("Internals::hash_seed",XS_Internals_hash_seed, file, ""); |
008fb0c0 |
302 | newXSproto("Internals::rehash_seed",XS_Internals_rehash_seed, file, ""); |
05619474 |
303 | newXSproto("Internals::HvREHASH", XS_Internals_HvREHASH, file, "\\%"); |
80305961 |
304 | newXSproto("re::is_regexp", XS_re_is_regexp, file, "$"); |
28d8d7f4 |
305 | newXSproto("re::regname", XS_re_regname, file, ";$$"); |
306 | newXSproto("re::regnames", XS_re_regnames, file, ";$"); |
28d8d7f4 |
307 | newXSproto("re::regnames_count", XS_re_regnames_count, file, ""); |
192c1e27 |
308 | newXSproto("re::regexp_pattern", XS_re_regexp_pattern, file, "$"); |
192b9cd1 |
309 | newXS("Tie::Hash::NamedCapture::FETCH", XS_Tie_Hash_NamedCapture_FETCH, file); |
310 | newXS("Tie::Hash::NamedCapture::STORE", XS_Tie_Hash_NamedCapture_STORE, file); |
311 | newXS("Tie::Hash::NamedCapture::DELETE", XS_Tie_Hash_NamedCapture_DELETE, file); |
312 | newXS("Tie::Hash::NamedCapture::CLEAR", XS_Tie_Hash_NamedCapture_CLEAR, file); |
313 | newXS("Tie::Hash::NamedCapture::EXISTS", XS_Tie_Hash_NamedCapture_EXISTS, file); |
86aa3d53 |
314 | newXS("Tie::Hash::NamedCapture::FIRSTKEY", XS_Tie_Hash_NamedCapture_FIRSTK, file); |
315 | newXS("Tie::Hash::NamedCapture::NEXTKEY", XS_Tie_Hash_NamedCapture_NEXTK, file); |
192b9cd1 |
316 | newXS("Tie::Hash::NamedCapture::SCALAR", XS_Tie_Hash_NamedCapture_SCALAR, file); |
317 | newXS("Tie::Hash::NamedCapture::flags", XS_Tie_Hash_NamedCapture_flags, file); |
0cb96387 |
318 | } |
319 | |
afa74d42 |
320 | /* |
321 | =for apidoc croak_xs_usage |
322 | |
323 | A specialised variant of C<croak()> for emitting the usage message for xsubs |
324 | |
325 | croak_xs_usage(cv, "eee_yow"); |
326 | |
327 | works out the package name and subroutine name from C<cv>, and then calls |
328 | C<croak()>. Hence if C<cv> is C<&ouch::awk>, it would call C<croak> as: |
329 | |
330 | Perl_croak(aTHX_ "Usage %s::%s(%s)", "ouch" "awk", "eee_yow"); |
331 | |
332 | =cut |
333 | */ |
334 | |
335 | void |
336 | Perl_croak_xs_usage(pTHX_ const CV *const cv, const char *const params) |
337 | { |
338 | const GV *const gv = CvGV(cv); |
339 | |
340 | PERL_ARGS_ASSERT_CROAK_XS_USAGE; |
341 | |
342 | if (gv) { |
343 | const char *const gvname = GvNAME(gv); |
344 | const HV *const stash = GvSTASH(gv); |
345 | const char *const hvname = stash ? HvNAME_get(stash) : NULL; |
346 | |
347 | if (hvname) |
348 | Perl_croak(aTHX_ "Usage: %s::%s(%s)", hvname, gvname, params); |
349 | else |
350 | Perl_croak(aTHX_ "Usage: %s(%s)", gvname, params); |
351 | } else { |
352 | /* Pants. I don't think that it should be possible to get here. */ |
93c51217 |
353 | Perl_croak(aTHX_ "Usage: CODE(0x%"UVxf")(%s)", PTR2UV(cv), params); |
afa74d42 |
354 | } |
355 | } |
55497cff |
356 | |
6d4a7be2 |
357 | XS(XS_UNIVERSAL_isa) |
358 | { |
97aff369 |
359 | dVAR; |
6d4a7be2 |
360 | dXSARGS; |
6d4a7be2 |
361 | |
362 | if (items != 2) |
afa74d42 |
363 | croak_xs_usage(cv, "reference, kind"); |
c4420975 |
364 | else { |
365 | SV * const sv = ST(0); |
366 | const char *name; |
6d4a7be2 |
367 | |
c4420975 |
368 | SvGETMAGIC(sv); |
d3f7f2b2 |
369 | |
c4420975 |
370 | if (!SvOK(sv) || !(SvROK(sv) || (SvPOK(sv) && SvCUR(sv)) |
371 | || (SvGMAGICAL(sv) && SvPOKp(sv) && SvCUR(sv)))) |
372 | XSRETURN_UNDEF; |
f8f70380 |
373 | |
c4420975 |
374 | name = SvPV_nolen_const(ST(1)); |
6d4a7be2 |
375 | |
c4420975 |
376 | ST(0) = boolSV(sv_derived_from(sv, name)); |
377 | XSRETURN(1); |
378 | } |
6d4a7be2 |
379 | } |
380 | |
6d4a7be2 |
381 | XS(XS_UNIVERSAL_can) |
382 | { |
97aff369 |
383 | dVAR; |
6d4a7be2 |
384 | dXSARGS; |
385 | SV *sv; |
6867be6d |
386 | const char *name; |
6d4a7be2 |
387 | SV *rv; |
6f08146e |
388 | HV *pkg = NULL; |
6d4a7be2 |
389 | |
390 | if (items != 2) |
afa74d42 |
391 | croak_xs_usage(cv, "object-ref, method"); |
6d4a7be2 |
392 | |
393 | sv = ST(0); |
f8f70380 |
394 | |
5b295bef |
395 | SvGETMAGIC(sv); |
d3f7f2b2 |
396 | |
253ecd6d |
397 | if (!SvOK(sv) || !(SvROK(sv) || (SvPOK(sv) && SvCUR(sv)) |
398 | || (SvGMAGICAL(sv) && SvPOKp(sv) && SvCUR(sv)))) |
f8f70380 |
399 | XSRETURN_UNDEF; |
400 | |
0510663f |
401 | name = SvPV_nolen_const(ST(1)); |
3280af22 |
402 | rv = &PL_sv_undef; |
6d4a7be2 |
403 | |
46e4b22b |
404 | if (SvROK(sv)) { |
daba3364 |
405 | sv = MUTABLE_SV(SvRV(sv)); |
46e4b22b |
406 | if (SvOBJECT(sv)) |
6f08146e |
407 | pkg = SvSTASH(sv); |
408 | } |
409 | else { |
da51bb9b |
410 | pkg = gv_stashsv(sv, 0); |
6f08146e |
411 | } |
412 | |
413 | if (pkg) { |
c4420975 |
414 | GV * const gv = gv_fetchmethod_autoload(pkg, name, FALSE); |
dc848c6f |
415 | if (gv && isGV(gv)) |
daba3364 |
416 | rv = sv_2mortal(newRV(MUTABLE_SV(GvCV(gv)))); |
6d4a7be2 |
417 | } |
418 | |
419 | ST(0) = rv; |
420 | XSRETURN(1); |
421 | } |
422 | |
cbc021f9 |
423 | XS(XS_UNIVERSAL_DOES) |
424 | { |
425 | dVAR; |
426 | dXSARGS; |
58c0efa5 |
427 | PERL_UNUSED_ARG(cv); |
cbc021f9 |
428 | |
429 | if (items != 2) |
26be3db7 |
430 | Perl_croak(aTHX_ "Usage: invocant->DOES(kind)"); |
cbc021f9 |
431 | else { |
432 | SV * const sv = ST(0); |
433 | const char *name; |
434 | |
435 | name = SvPV_nolen_const(ST(1)); |
436 | if (sv_does( sv, name )) |
437 | XSRETURN_YES; |
438 | |
439 | XSRETURN_NO; |
440 | } |
441 | } |
442 | |
6d4a7be2 |
443 | XS(XS_UNIVERSAL_VERSION) |
444 | { |
97aff369 |
445 | dVAR; |
6d4a7be2 |
446 | dXSARGS; |
447 | HV *pkg; |
448 | GV **gvp; |
449 | GV *gv; |
450 | SV *sv; |
e1ec3a88 |
451 | const char *undef; |
58c0efa5 |
452 | PERL_UNUSED_ARG(cv); |
6d4a7be2 |
453 | |
1571675a |
454 | if (SvROK(ST(0))) { |
daba3364 |
455 | sv = MUTABLE_SV(SvRV(ST(0))); |
1571675a |
456 | if (!SvOBJECT(sv)) |
cea2e8a9 |
457 | Perl_croak(aTHX_ "Cannot find version of an unblessed reference"); |
6d4a7be2 |
458 | pkg = SvSTASH(sv); |
459 | } |
460 | else { |
da51bb9b |
461 | pkg = gv_stashsv(ST(0), 0); |
6d4a7be2 |
462 | } |
463 | |
4608196e |
464 | gvp = pkg ? (GV**)hv_fetchs(pkg, "VERSION", FALSE) : NULL; |
6d4a7be2 |
465 | |
0008872a |
466 | if (gvp && isGV(gv = *gvp) && (sv = GvSV(gv)) && SvOK(sv)) { |
c4420975 |
467 | SV * const nsv = sv_newmortal(); |
6d4a7be2 |
468 | sv_setsv(nsv, sv); |
469 | sv = nsv; |
137d6fc0 |
470 | if ( !sv_derived_from(sv, "version")) |
ac0e6a2f |
471 | upg_version(sv, FALSE); |
c445ea15 |
472 | undef = NULL; |
6d4a7be2 |
473 | } |
474 | else { |
daba3364 |
475 | sv = &PL_sv_undef; |
6d4a7be2 |
476 | undef = "(undef)"; |
477 | } |
478 | |
1571675a |
479 | if (items > 1) { |
1571675a |
480 | SV *req = ST(1); |
481 | |
62658f4d |
482 | if (undef) { |
bfcb3514 |
483 | if (pkg) { |
c4420975 |
484 | const char * const name = HvNAME_get(pkg); |
a3b680e6 |
485 | Perl_croak(aTHX_ |
bfcb3514 |
486 | "%s does not define $%s::VERSION--version check failed", |
487 | name, name); |
488 | } else { |
a3b680e6 |
489 | Perl_croak(aTHX_ |
490 | "%s defines neither package nor VERSION--version check failed", |
0510663f |
491 | SvPVx_nolen_const(ST(0)) ); |
62658f4d |
492 | } |
493 | } |
ad63d80f |
494 | |
137d6fc0 |
495 | if ( !sv_derived_from(req, "version")) { |
496 | /* req may very well be R/O, so create a new object */ |
ac0e6a2f |
497 | req = sv_2mortal( new_version(req) ); |
137d6fc0 |
498 | } |
1571675a |
499 | |
ac0e6a2f |
500 | if ( vcmp( req, sv ) > 0 ) { |
ef8f7699 |
501 | if ( hv_exists(MUTABLE_HV(SvRV(req)), "qv", 2 ) ) { |
ac0e6a2f |
502 | Perl_croak(aTHX_ "%s version %"SVf" required--" |
503 | "this is only version %"SVf"", HvNAME_get(pkg), |
be2597df |
504 | SVfARG(vnormal(req)), |
be2597df |
505 | SVfARG(vnormal(sv))); |
ac0e6a2f |
506 | } else { |
507 | Perl_croak(aTHX_ "%s version %"SVf" required--" |
508 | "this is only version %"SVf"", HvNAME_get(pkg), |
8cb289bd |
509 | SVfARG(vstringify(req)), |
510 | SVfARG(vstringify(sv))); |
ac0e6a2f |
511 | } |
512 | } |
513 | |
2d8e6c8d |
514 | } |
6d4a7be2 |
515 | |
2b140d5b |
516 | if ( SvOK(sv) && sv_derived_from(sv, "version") ) { |
8cb289bd |
517 | ST(0) = vstringify(sv); |
13f8f398 |
518 | } else { |
519 | ST(0) = sv; |
b38a9dc5 |
520 | } |
6d4a7be2 |
521 | |
522 | XSRETURN(1); |
523 | } |
524 | |
439cb1c4 |
525 | XS(XS_version_new) |
526 | { |
97aff369 |
527 | dVAR; |
439cb1c4 |
528 | dXSARGS; |
129318bd |
529 | if (items > 3) |
afa74d42 |
530 | croak_xs_usage(cv, "class, version"); |
439cb1c4 |
531 | SP -= items; |
532 | { |
137d6fc0 |
533 | SV *vs = ST(1); |
534 | SV *rv; |
c4420975 |
535 | const char * const classname = |
536 | sv_isobject(ST(0)) /* get the class if called as an object method */ |
537 | ? HvNAME(SvSTASH(SvRV(ST(0)))) |
538 | : (char *)SvPV_nolen(ST(0)); |
9137345a |
539 | |
92dcf8ce |
540 | if ( items == 1 || vs == &PL_sv_undef ) { /* no param or explicit undef */ |
541 | /* create empty object */ |
542 | vs = sv_newmortal(); |
76f68e9b |
543 | sv_setpvs(vs,""); |
9137345a |
544 | } |
545 | else if ( items == 3 ) { |
546 | vs = sv_newmortal(); |
cfd0369c |
547 | Perl_sv_setpvf(aTHX_ vs,"v%s",SvPV_nolen_const(ST(2))); |
129318bd |
548 | } |
439cb1c4 |
549 | |
137d6fc0 |
550 | rv = new_version(vs); |
0723351e |
551 | if ( strcmp(classname,"version") != 0 ) /* inherited new() */ |
da51bb9b |
552 | sv_bless(rv, gv_stashpv(classname, GV_ADD)); |
137d6fc0 |
553 | |
6e449a3a |
554 | mPUSHs(rv); |
439cb1c4 |
555 | PUTBACK; |
556 | return; |
557 | } |
558 | } |
559 | |
560 | XS(XS_version_stringify) |
561 | { |
97aff369 |
562 | dVAR; |
41be1fbd |
563 | dXSARGS; |
564 | if (items < 1) |
afa74d42 |
565 | croak_xs_usage(cv, "lobj, ..."); |
41be1fbd |
566 | SP -= items; |
567 | { |
7452cf6a |
568 | SV * lobj; |
41be1fbd |
569 | |
570 | if (sv_derived_from(ST(0), "version")) { |
9137345a |
571 | lobj = SvRV(ST(0)); |
41be1fbd |
572 | } |
573 | else |
574 | Perl_croak(aTHX_ "lobj is not of type version"); |
575 | |
6e449a3a |
576 | mPUSHs(vstringify(lobj)); |
41be1fbd |
577 | |
578 | PUTBACK; |
579 | return; |
580 | } |
439cb1c4 |
581 | } |
582 | |
583 | XS(XS_version_numify) |
584 | { |
97aff369 |
585 | dVAR; |
41be1fbd |
586 | dXSARGS; |
587 | if (items < 1) |
afa74d42 |
588 | croak_xs_usage(cv, "lobj, ..."); |
41be1fbd |
589 | SP -= items; |
590 | { |
7452cf6a |
591 | SV * lobj; |
41be1fbd |
592 | |
593 | if (sv_derived_from(ST(0), "version")) { |
9137345a |
594 | lobj = SvRV(ST(0)); |
41be1fbd |
595 | } |
596 | else |
597 | Perl_croak(aTHX_ "lobj is not of type version"); |
598 | |
6e449a3a |
599 | mPUSHs(vnumify(lobj)); |
41be1fbd |
600 | |
601 | PUTBACK; |
602 | return; |
603 | } |
439cb1c4 |
604 | } |
605 | |
9137345a |
606 | XS(XS_version_normal) |
607 | { |
97aff369 |
608 | dVAR; |
9137345a |
609 | dXSARGS; |
610 | if (items < 1) |
afa74d42 |
611 | croak_xs_usage(cv, "lobj, ..."); |
9137345a |
612 | SP -= items; |
613 | { |
7452cf6a |
614 | SV * lobj; |
9137345a |
615 | |
616 | if (sv_derived_from(ST(0), "version")) { |
617 | lobj = SvRV(ST(0)); |
618 | } |
619 | else |
620 | Perl_croak(aTHX_ "lobj is not of type version"); |
621 | |
6e449a3a |
622 | mPUSHs(vnormal(lobj)); |
9137345a |
623 | |
624 | PUTBACK; |
625 | return; |
626 | } |
627 | } |
628 | |
439cb1c4 |
629 | XS(XS_version_vcmp) |
630 | { |
97aff369 |
631 | dVAR; |
41be1fbd |
632 | dXSARGS; |
633 | if (items < 1) |
afa74d42 |
634 | croak_xs_usage(cv, "lobj, ..."); |
41be1fbd |
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 | |
6e449a3a |
666 | mPUSHs(rs); |
41be1fbd |
667 | } |
668 | |
669 | PUTBACK; |
670 | return; |
671 | } |
439cb1c4 |
672 | } |
673 | |
674 | XS(XS_version_boolean) |
675 | { |
97aff369 |
676 | dVAR; |
677 | dXSARGS; |
678 | if (items < 1) |
afa74d42 |
679 | croak_xs_usage(cv, "lobj, ..."); |
97aff369 |
680 | SP -= items; |
c4420975 |
681 | if (sv_derived_from(ST(0), "version")) { |
682 | SV * const lobj = SvRV(ST(0)); |
396482e1 |
683 | SV * const rs = newSViv( vcmp(lobj,new_version(newSVpvs("0"))) ); |
6e449a3a |
684 | mPUSHs(rs); |
c4420975 |
685 | PUTBACK; |
686 | return; |
687 | } |
688 | else |
689 | Perl_croak(aTHX_ "lobj is not of type version"); |
439cb1c4 |
690 | } |
691 | |
692 | XS(XS_version_noop) |
693 | { |
97aff369 |
694 | dVAR; |
2dfd8427 |
695 | dXSARGS; |
696 | if (items < 1) |
afa74d42 |
697 | croak_xs_usage(cv, "lobj, ..."); |
2dfd8427 |
698 | if (sv_derived_from(ST(0), "version")) |
699 | Perl_croak(aTHX_ "operation not supported with version object"); |
700 | else |
701 | Perl_croak(aTHX_ "lobj is not of type version"); |
702 | #ifndef HASATTRIBUTE_NORETURN |
703 | XSRETURN_EMPTY; |
704 | #endif |
439cb1c4 |
705 | } |
706 | |
c8d69e4a |
707 | XS(XS_version_is_alpha) |
708 | { |
97aff369 |
709 | dVAR; |
c8d69e4a |
710 | dXSARGS; |
711 | if (items != 1) |
afa74d42 |
712 | croak_xs_usage(cv, "lobj"); |
c8d69e4a |
713 | SP -= items; |
c4420975 |
714 | if (sv_derived_from(ST(0), "version")) { |
715 | SV * const lobj = ST(0); |
ef8f7699 |
716 | if ( hv_exists(MUTABLE_HV(SvRV(lobj)), "alpha", 5 ) ) |
c4420975 |
717 | XSRETURN_YES; |
718 | else |
719 | XSRETURN_NO; |
c8d69e4a |
720 | PUTBACK; |
721 | return; |
722 | } |
c4420975 |
723 | else |
724 | Perl_croak(aTHX_ "lobj is not of type version"); |
c8d69e4a |
725 | } |
726 | |
137d6fc0 |
727 | XS(XS_version_qv) |
728 | { |
97aff369 |
729 | dVAR; |
137d6fc0 |
730 | dXSARGS; |
731 | if (items != 1) |
afa74d42 |
732 | croak_xs_usage(cv, "ver"); |
137d6fc0 |
733 | SP -= items; |
734 | { |
735 | SV * ver = ST(0); |
c4420975 |
736 | if ( !SvVOK(ver) ) { /* only need to do with if not already v-string */ |
ac0e6a2f |
737 | SV * const rv = sv_newmortal(); |
738 | sv_setsv(rv,ver); /* make a duplicate */ |
739 | upg_version(rv, TRUE); |
740 | PUSHs(rv); |
137d6fc0 |
741 | } |
742 | else |
743 | { |
6e449a3a |
744 | mPUSHs(new_version(ver)); |
137d6fc0 |
745 | } |
746 | |
747 | PUTBACK; |
748 | return; |
749 | } |
750 | } |
751 | |
8800c35a |
752 | XS(XS_utf8_is_utf8) |
753 | { |
97aff369 |
754 | dVAR; |
41be1fbd |
755 | dXSARGS; |
756 | if (items != 1) |
afa74d42 |
757 | croak_xs_usage(cv, "sv"); |
c4420975 |
758 | else { |
759 | const SV * const sv = ST(0); |
760 | if (SvUTF8(sv)) |
761 | XSRETURN_YES; |
762 | else |
763 | XSRETURN_NO; |
41be1fbd |
764 | } |
765 | XSRETURN_EMPTY; |
8800c35a |
766 | } |
767 | |
1b026014 |
768 | XS(XS_utf8_valid) |
769 | { |
97aff369 |
770 | dVAR; |
41be1fbd |
771 | dXSARGS; |
772 | if (items != 1) |
afa74d42 |
773 | croak_xs_usage(cv, "sv"); |
c4420975 |
774 | else { |
775 | SV * const sv = ST(0); |
776 | STRLEN len; |
777 | const char * const s = SvPV_const(sv,len); |
778 | if (!SvUTF8(sv) || is_utf8_string((const U8*)s,len)) |
779 | XSRETURN_YES; |
780 | else |
781 | XSRETURN_NO; |
782 | } |
41be1fbd |
783 | XSRETURN_EMPTY; |
1b026014 |
784 | } |
785 | |
786 | XS(XS_utf8_encode) |
787 | { |
97aff369 |
788 | dVAR; |
1b026014 |
789 | dXSARGS; |
790 | if (items != 1) |
afa74d42 |
791 | croak_xs_usage(cv, "sv"); |
c4420975 |
792 | sv_utf8_encode(ST(0)); |
1b026014 |
793 | XSRETURN_EMPTY; |
794 | } |
795 | |
796 | XS(XS_utf8_decode) |
797 | { |
97aff369 |
798 | dVAR; |
1b026014 |
799 | dXSARGS; |
800 | if (items != 1) |
afa74d42 |
801 | croak_xs_usage(cv, "sv"); |
c4420975 |
802 | else { |
803 | SV * const sv = ST(0); |
6867be6d |
804 | const bool RETVAL = sv_utf8_decode(sv); |
1b026014 |
805 | ST(0) = boolSV(RETVAL); |
806 | sv_2mortal(ST(0)); |
807 | } |
808 | XSRETURN(1); |
809 | } |
810 | |
811 | XS(XS_utf8_upgrade) |
812 | { |
97aff369 |
813 | dVAR; |
1b026014 |
814 | dXSARGS; |
815 | if (items != 1) |
afa74d42 |
816 | croak_xs_usage(cv, "sv"); |
c4420975 |
817 | else { |
818 | SV * const sv = ST(0); |
1b026014 |
819 | STRLEN RETVAL; |
820 | dXSTARG; |
821 | |
822 | RETVAL = sv_utf8_upgrade(sv); |
823 | XSprePUSH; PUSHi((IV)RETVAL); |
824 | } |
825 | XSRETURN(1); |
826 | } |
827 | |
828 | XS(XS_utf8_downgrade) |
829 | { |
97aff369 |
830 | dVAR; |
1b026014 |
831 | dXSARGS; |
832 | if (items < 1 || items > 2) |
afa74d42 |
833 | croak_xs_usage(cv, "sv, failok=0"); |
c4420975 |
834 | else { |
835 | SV * const sv = ST(0); |
6867be6d |
836 | const bool failok = (items < 2) ? 0 : (int)SvIV(ST(1)); |
837 | const bool RETVAL = sv_utf8_downgrade(sv, failok); |
1b026014 |
838 | |
1b026014 |
839 | ST(0) = boolSV(RETVAL); |
840 | sv_2mortal(ST(0)); |
841 | } |
842 | XSRETURN(1); |
843 | } |
844 | |
845 | XS(XS_utf8_native_to_unicode) |
846 | { |
97aff369 |
847 | dVAR; |
1b026014 |
848 | dXSARGS; |
6867be6d |
849 | const UV uv = SvUV(ST(0)); |
b7953727 |
850 | |
851 | if (items > 1) |
afa74d42 |
852 | croak_xs_usage(cv, "sv"); |
b7953727 |
853 | |
1b026014 |
854 | ST(0) = sv_2mortal(newSViv(NATIVE_TO_UNI(uv))); |
855 | XSRETURN(1); |
856 | } |
857 | |
858 | XS(XS_utf8_unicode_to_native) |
859 | { |
97aff369 |
860 | dVAR; |
1b026014 |
861 | dXSARGS; |
6867be6d |
862 | const UV uv = SvUV(ST(0)); |
b7953727 |
863 | |
864 | if (items > 1) |
afa74d42 |
865 | croak_xs_usage(cv, "sv"); |
b7953727 |
866 | |
1b026014 |
867 | ST(0) = sv_2mortal(newSViv(UNI_TO_NATIVE(uv))); |
868 | XSRETURN(1); |
869 | } |
870 | |
14a976d6 |
871 | XS(XS_Internals_SvREADONLY) /* This is dangerous stuff. */ |
29569577 |
872 | { |
97aff369 |
873 | dVAR; |
29569577 |
874 | dXSARGS; |
c4420975 |
875 | SV * const sv = SvRV(ST(0)); |
58c0efa5 |
876 | PERL_UNUSED_ARG(cv); |
6867be6d |
877 | |
29569577 |
878 | if (items == 1) { |
879 | if (SvREADONLY(sv)) |
880 | XSRETURN_YES; |
881 | else |
882 | XSRETURN_NO; |
883 | } |
884 | else if (items == 2) { |
885 | if (SvTRUE(ST(1))) { |
886 | SvREADONLY_on(sv); |
887 | XSRETURN_YES; |
888 | } |
889 | else { |
14a976d6 |
890 | /* I hope you really know what you are doing. */ |
29569577 |
891 | SvREADONLY_off(sv); |
892 | XSRETURN_NO; |
893 | } |
894 | } |
14a976d6 |
895 | XSRETURN_UNDEF; /* Can't happen. */ |
29569577 |
896 | } |
897 | |
14a976d6 |
898 | XS(XS_Internals_SvREFCNT) /* This is dangerous stuff. */ |
29569577 |
899 | { |
97aff369 |
900 | dVAR; |
29569577 |
901 | dXSARGS; |
c4420975 |
902 | SV * const sv = SvRV(ST(0)); |
58c0efa5 |
903 | PERL_UNUSED_ARG(cv); |
6867be6d |
904 | |
29569577 |
905 | if (items == 1) |
14a976d6 |
906 | XSRETURN_IV(SvREFCNT(sv) - 1); /* Minus the ref created for us. */ |
29569577 |
907 | else if (items == 2) { |
14a976d6 |
908 | /* I hope you really know what you are doing. */ |
29569577 |
909 | SvREFCNT(sv) = SvIV(ST(1)); |
910 | XSRETURN_IV(SvREFCNT(sv)); |
911 | } |
14a976d6 |
912 | XSRETURN_UNDEF; /* Can't happen. */ |
29569577 |
913 | } |
914 | |
f044d0d1 |
915 | XS(XS_Internals_hv_clear_placehold) |
dfd4ef2f |
916 | { |
97aff369 |
917 | dVAR; |
dfd4ef2f |
918 | dXSARGS; |
6867be6d |
919 | |
3540d4ce |
920 | if (items != 1) |
afa74d42 |
921 | croak_xs_usage(cv, "hv"); |
c4420975 |
922 | else { |
ef8f7699 |
923 | HV * const hv = MUTABLE_HV(SvRV(ST(0))); |
c4420975 |
924 | hv_clear_placeholders(hv); |
925 | XSRETURN(0); |
926 | } |
dfd4ef2f |
927 | } |
39f7a870 |
928 | |
f63535fc |
929 | XS(XS_Regexp_DESTROY) |
930 | { |
931 | PERL_UNUSED_CONTEXT; |
932 | PERL_UNUSED_ARG(cv); |
933 | } |
934 | |
39f7a870 |
935 | XS(XS_PerlIO_get_layers) |
936 | { |
97aff369 |
937 | dVAR; |
39f7a870 |
938 | dXSARGS; |
939 | if (items < 1 || items % 2 == 0) |
afa74d42 |
940 | croak_xs_usage(cv, "filehandle[,args]"); |
5fef3b4a |
941 | #ifdef USE_PERLIO |
39f7a870 |
942 | { |
943 | SV * sv; |
944 | GV * gv; |
945 | IO * io; |
946 | bool input = TRUE; |
947 | bool details = FALSE; |
948 | |
949 | if (items > 1) { |
c4420975 |
950 | SV * const *svp; |
39f7a870 |
951 | for (svp = MARK + 2; svp <= SP; svp += 2) { |
c4420975 |
952 | SV * const * const varp = svp; |
953 | SV * const * const valp = svp + 1; |
39f7a870 |
954 | STRLEN klen; |
c4420975 |
955 | const char * const key = SvPV_const(*varp, klen); |
39f7a870 |
956 | |
957 | switch (*key) { |
958 | case 'i': |
959 | if (klen == 5 && memEQ(key, "input", 5)) { |
960 | input = SvTRUE(*valp); |
961 | break; |
962 | } |
963 | goto fail; |
964 | case 'o': |
965 | if (klen == 6 && memEQ(key, "output", 6)) { |
966 | input = !SvTRUE(*valp); |
967 | break; |
968 | } |
969 | goto fail; |
970 | case 'd': |
971 | if (klen == 7 && memEQ(key, "details", 7)) { |
972 | details = SvTRUE(*valp); |
973 | break; |
974 | } |
975 | goto fail; |
976 | default: |
977 | fail: |
978 | Perl_croak(aTHX_ |
979 | "get_layers: unknown argument '%s'", |
980 | key); |
981 | } |
982 | } |
983 | |
984 | SP -= (items - 1); |
985 | } |
986 | |
987 | sv = POPs; |
159b6efe |
988 | gv = MUTABLE_GV(sv); |
39f7a870 |
989 | |
990 | if (!isGV(sv)) { |
991 | if (SvROK(sv) && isGV(SvRV(sv))) |
159b6efe |
992 | gv = MUTABLE_GV(SvRV(sv)); |
671d49be |
993 | else if (SvPOKp(sv)) |
f776e3cd |
994 | gv = gv_fetchsv(sv, 0, SVt_PVIO); |
39f7a870 |
995 | } |
996 | |
997 | if (gv && (io = GvIO(gv))) { |
c4420975 |
998 | AV* const av = PerlIO_get_layers(aTHX_ input ? |
39f7a870 |
999 | IoIFP(io) : IoOFP(io)); |
1000 | I32 i; |
c4420975 |
1001 | const I32 last = av_len(av); |
39f7a870 |
1002 | I32 nitem = 0; |
1003 | |
1004 | for (i = last; i >= 0; i -= 3) { |
c4420975 |
1005 | SV * const * const namsvp = av_fetch(av, i - 2, FALSE); |
1006 | SV * const * const argsvp = av_fetch(av, i - 1, FALSE); |
1007 | SV * const * const flgsvp = av_fetch(av, i, FALSE); |
39f7a870 |
1008 | |
c4420975 |
1009 | const bool namok = namsvp && *namsvp && SvPOK(*namsvp); |
1010 | const bool argok = argsvp && *argsvp && SvPOK(*argsvp); |
1011 | const bool flgok = flgsvp && *flgsvp && SvIOK(*flgsvp); |
39f7a870 |
1012 | |
1013 | if (details) { |
92e45a3e |
1014 | /* Indents of 5? Yuck. */ |
1015 | /* We know that PerlIO_get_layers creates a new SV for |
1016 | the name and flags, so we can just take a reference |
1017 | and "steal" it when we free the AV below. */ |
ec3bab8e |
1018 | XPUSHs(namok |
92e45a3e |
1019 | ? sv_2mortal(SvREFCNT_inc_simple_NN(*namsvp)) |
ec3bab8e |
1020 | : &PL_sv_undef); |
1021 | XPUSHs(argok |
92e45a3e |
1022 | ? newSVpvn_flags(SvPVX_const(*argsvp), |
1023 | SvCUR(*argsvp), |
1024 | (SvUTF8(*argsvp) ? SVf_UTF8 : 0) |
1025 | | SVs_TEMP) |
1026 | : &PL_sv_undef); |
96ccaf53 |
1027 | XPUSHs(flgok |
92e45a3e |
1028 | ? sv_2mortal(SvREFCNT_inc_simple_NN(*flgsvp)) |
ec3bab8e |
1029 | : &PL_sv_undef); |
39f7a870 |
1030 | nitem += 3; |
1031 | } |
1032 | else { |
1033 | if (namok && argok) |
1eb9e81d |
1034 | XPUSHs(sv_2mortal(Perl_newSVpvf(aTHX_ "%"SVf"(%"SVf")", |
be2597df |
1035 | SVfARG(*namsvp), |
1eb9e81d |
1036 | SVfARG(*argsvp)))); |
39f7a870 |
1037 | else if (namok) |
92e45a3e |
1038 | XPUSHs(sv_2mortal(SvREFCNT_inc_simple_NN(*namsvp))); |
39f7a870 |
1039 | else |
1040 | XPUSHs(&PL_sv_undef); |
1041 | nitem++; |
1042 | if (flgok) { |
c4420975 |
1043 | const IV flags = SvIVX(*flgsvp); |
39f7a870 |
1044 | |
1045 | if (flags & PERLIO_F_UTF8) { |
84bafc02 |
1046 | XPUSHs(newSVpvs_flags("utf8", SVs_TEMP)); |
39f7a870 |
1047 | nitem++; |
1048 | } |
1049 | } |
1050 | } |
1051 | } |
1052 | |
1053 | SvREFCNT_dec(av); |
1054 | |
1055 | XSRETURN(nitem); |
1056 | } |
1057 | } |
5fef3b4a |
1058 | #endif |
39f7a870 |
1059 | |
1060 | XSRETURN(0); |
1061 | } |
1062 | |
9a7034eb |
1063 | XS(XS_Internals_hash_seed) |
c910b28a |
1064 | { |
97aff369 |
1065 | dVAR; |
c85d3f85 |
1066 | /* Using dXSARGS would also have dITEM and dSP, |
1067 | * which define 2 unused local variables. */ |
557b887a |
1068 | dAXMARK; |
53c1dcc0 |
1069 | PERL_UNUSED_ARG(cv); |
ad73156c |
1070 | PERL_UNUSED_VAR(mark); |
81eaca17 |
1071 | XSRETURN_UV(PERL_HASH_SEED); |
c910b28a |
1072 | } |
1073 | |
008fb0c0 |
1074 | XS(XS_Internals_rehash_seed) |
8e90d776 |
1075 | { |
97aff369 |
1076 | dVAR; |
8e90d776 |
1077 | /* Using dXSARGS would also have dITEM and dSP, |
1078 | * which define 2 unused local variables. */ |
557b887a |
1079 | dAXMARK; |
53c1dcc0 |
1080 | PERL_UNUSED_ARG(cv); |
ad73156c |
1081 | PERL_UNUSED_VAR(mark); |
008fb0c0 |
1082 | XSRETURN_UV(PL_rehash_seed); |
8e90d776 |
1083 | } |
1084 | |
05619474 |
1085 | XS(XS_Internals_HvREHASH) /* Subject to change */ |
1086 | { |
97aff369 |
1087 | dVAR; |
05619474 |
1088 | dXSARGS; |
93c51217 |
1089 | PERL_UNUSED_ARG(cv); |
05619474 |
1090 | if (SvROK(ST(0))) { |
ef8f7699 |
1091 | const HV * const hv = (const HV *) SvRV(ST(0)); |
05619474 |
1092 | if (items == 1 && SvTYPE(hv) == SVt_PVHV) { |
1093 | if (HvREHASH(hv)) |
1094 | XSRETURN_YES; |
1095 | else |
1096 | XSRETURN_NO; |
1097 | } |
1098 | } |
1099 | Perl_croak(aTHX_ "Internals::HvREHASH $hashref"); |
1100 | } |
241d1a3b |
1101 | |
80305961 |
1102 | XS(XS_re_is_regexp) |
1103 | { |
1104 | dVAR; |
1105 | dXSARGS; |
f7e71195 |
1106 | PERL_UNUSED_VAR(cv); |
1107 | |
80305961 |
1108 | if (items != 1) |
afa74d42 |
1109 | croak_xs_usage(cv, "sv"); |
f7e71195 |
1110 | |
80305961 |
1111 | SP -= items; |
f7e71195 |
1112 | |
1113 | if (SvRXOK(ST(0))) { |
1114 | XSRETURN_YES; |
1115 | } else { |
1116 | XSRETURN_NO; |
80305961 |
1117 | } |
1118 | } |
1119 | |
192b9cd1 |
1120 | XS(XS_re_regnames_count) |
80305961 |
1121 | { |
192b9cd1 |
1122 | REGEXP *rx = PL_curpm ? PM_GETRE(PL_curpm) : NULL; |
1123 | SV * ret; |
80305961 |
1124 | dVAR; |
1125 | dXSARGS; |
192b9cd1 |
1126 | |
1127 | if (items != 0) |
afa74d42 |
1128 | croak_xs_usage(cv, ""); |
192b9cd1 |
1129 | |
1130 | SP -= items; |
1131 | |
1132 | if (!rx) |
1133 | XSRETURN_UNDEF; |
1134 | |
1135 | ret = CALLREG_NAMED_BUFF_COUNT(rx); |
1136 | |
1137 | SPAGAIN; |
1138 | |
1139 | if (ret) { |
ec83ea38 |
1140 | mXPUSHs(ret); |
192b9cd1 |
1141 | PUTBACK; |
1142 | return; |
1143 | } else { |
1144 | XSRETURN_UNDEF; |
1145 | } |
1146 | } |
1147 | |
1148 | XS(XS_re_regname) |
1149 | { |
1150 | dVAR; |
1151 | dXSARGS; |
1152 | REGEXP * rx; |
1153 | U32 flags; |
1154 | SV * ret; |
1155 | |
28d8d7f4 |
1156 | if (items < 1 || items > 2) |
afa74d42 |
1157 | croak_xs_usage(cv, "name[, all ]"); |
192b9cd1 |
1158 | |
80305961 |
1159 | SP -= items; |
80305961 |
1160 | |
192b9cd1 |
1161 | rx = PL_curpm ? PM_GETRE(PL_curpm) : NULL; |
1162 | |
1163 | if (!rx) |
1164 | XSRETURN_UNDEF; |
1165 | |
1166 | if (items == 2 && SvTRUE(ST(1))) { |
f1b875a0 |
1167 | flags = RXapif_ALL; |
192b9cd1 |
1168 | } else { |
f1b875a0 |
1169 | flags = RXapif_ONE; |
80305961 |
1170 | } |
f1b875a0 |
1171 | ret = CALLREG_NAMED_BUFF_FETCH(rx, ST(0), (flags | RXapif_REGNAME)); |
192b9cd1 |
1172 | |
1173 | if (ret) { |
ec83ea38 |
1174 | mXPUSHs(ret); |
192b9cd1 |
1175 | XSRETURN(1); |
1176 | } |
1177 | XSRETURN_UNDEF; |
80305961 |
1178 | } |
1179 | |
192b9cd1 |
1180 | |
80305961 |
1181 | XS(XS_re_regnames) |
1182 | { |
192b9cd1 |
1183 | dVAR; |
80305961 |
1184 | dXSARGS; |
192b9cd1 |
1185 | REGEXP * rx; |
1186 | U32 flags; |
1187 | SV *ret; |
1188 | AV *av; |
1189 | I32 length; |
1190 | I32 i; |
1191 | SV **entry; |
1192 | |
1193 | if (items > 1) |
afa74d42 |
1194 | croak_xs_usage(cv, "[all]"); |
192b9cd1 |
1195 | |
1196 | rx = PL_curpm ? PM_GETRE(PL_curpm) : NULL; |
1197 | |
1198 | if (!rx) |
1199 | XSRETURN_UNDEF; |
1200 | |
1201 | if (items == 1 && SvTRUE(ST(0))) { |
f1b875a0 |
1202 | flags = RXapif_ALL; |
192b9cd1 |
1203 | } else { |
f1b875a0 |
1204 | flags = RXapif_ONE; |
192b9cd1 |
1205 | } |
1206 | |
80305961 |
1207 | SP -= items; |
80305961 |
1208 | |
f1b875a0 |
1209 | ret = CALLREG_NAMED_BUFF_ALL(rx, (flags | RXapif_REGNAMES)); |
192b9cd1 |
1210 | |
1211 | SPAGAIN; |
1212 | |
1213 | SP -= items; |
1214 | |
1215 | if (!ret) |
1216 | XSRETURN_UNDEF; |
1217 | |
502c6561 |
1218 | av = MUTABLE_AV(SvRV(ret)); |
192b9cd1 |
1219 | length = av_len(av); |
1220 | |
1221 | for (i = 0; i <= length; i++) { |
1222 | entry = av_fetch(av, i, FALSE); |
1223 | |
1224 | if (!entry) |
1225 | Perl_croak(aTHX_ "NULL array element in re::regnames()"); |
1226 | |
ec83ea38 |
1227 | mXPUSHs(SvREFCNT_inc_simple_NN(*entry)); |
80305961 |
1228 | } |
ec83ea38 |
1229 | |
1230 | SvREFCNT_dec(ret); |
1231 | |
192b9cd1 |
1232 | PUTBACK; |
1233 | return; |
80305961 |
1234 | } |
1235 | |
192c1e27 |
1236 | XS(XS_re_regexp_pattern) |
1237 | { |
1238 | dVAR; |
1239 | dXSARGS; |
1240 | REGEXP *re; |
192c1e27 |
1241 | |
1242 | if (items != 1) |
afa74d42 |
1243 | croak_xs_usage(cv, "sv"); |
192c1e27 |
1244 | |
1245 | SP -= items; |
1246 | |
1247 | /* |
1248 | Checks if a reference is a regex or not. If the parameter is |
1249 | not a ref, or is not the result of a qr// then returns false |
1250 | in scalar context and an empty list in list context. |
1251 | Otherwise in list context it returns the pattern and the |
1252 | modifiers, in scalar context it returns the pattern just as it |
1253 | would if the qr// was stringified normally, regardless as |
1254 | to the class of the variable and any strigification overloads |
1255 | on the object. |
1256 | */ |
1257 | |
1258 | if ((re = SvRX(ST(0)))) /* assign deliberate */ |
1259 | { |
1260 | /* Housten, we have a regex! */ |
1261 | SV *pattern; |
1262 | STRLEN left = 0; |
1263 | char reflags[6]; |
1264 | |
1265 | if ( GIMME_V == G_ARRAY ) { |
1266 | /* |
1267 | we are in list context so stringify |
1268 | the modifiers that apply. We ignore "negative |
1269 | modifiers" in this scenario. |
1270 | */ |
1271 | |
1272 | const char *fptr = INT_PAT_MODS; |
1273 | char ch; |
1274 | U16 match_flags = (U16)((RX_EXTFLAGS(re) & PMf_COMPILETIME) |
1275 | >> RXf_PMf_STD_PMMOD_SHIFT); |
1276 | |
1277 | while((ch = *fptr++)) { |
1278 | if(match_flags & 1) { |
1279 | reflags[left++] = ch; |
1280 | } |
1281 | match_flags >>= 1; |
1282 | } |
1283 | |
fb632ce3 |
1284 | pattern = newSVpvn_flags(RX_PRECOMP(re),RX_PRELEN(re), |
1285 | (RX_UTF8(re) ? SVf_UTF8 : 0) | SVs_TEMP); |
192c1e27 |
1286 | |
1287 | /* return the pattern and the modifiers */ |
1288 | XPUSHs(pattern); |
fb632ce3 |
1289 | XPUSHs(newSVpvn_flags(reflags, left, SVs_TEMP)); |
192c1e27 |
1290 | XSRETURN(2); |
1291 | } else { |
1292 | /* Scalar, so use the string that Perl would return */ |
1293 | /* return the pattern in (?msix:..) format */ |
1294 | #if PERL_VERSION >= 11 |
daba3364 |
1295 | pattern = sv_2mortal(newSVsv(MUTABLE_SV(re))); |
192c1e27 |
1296 | #else |
fb632ce3 |
1297 | pattern = newSVpvn_flags(RX_WRAPPED(re), RX_WRAPLEN(re), |
1298 | (RX_UTF8(re) ? SVf_UTF8 : 0) | SVs_TEMP); |
192c1e27 |
1299 | #endif |
1300 | XPUSHs(pattern); |
1301 | XSRETURN(1); |
1302 | } |
1303 | } else { |
1304 | /* It ain't a regexp folks */ |
1305 | if ( GIMME_V == G_ARRAY ) { |
1306 | /* return the empty list */ |
1307 | XSRETURN_UNDEF; |
1308 | } else { |
1309 | /* Because of the (?:..) wrapping involved in a |
1310 | stringified pattern it is impossible to get a |
1311 | result for a real regexp that would evaluate to |
1312 | false. Therefore we can return PL_sv_no to signify |
1313 | that the object is not a regex, this means that one |
1314 | can say |
1315 | |
1316 | if (regex($might_be_a_regex) eq '(?:foo)') { } |
1317 | |
1318 | and not worry about undefined values. |
1319 | */ |
1320 | XSRETURN_NO; |
1321 | } |
1322 | } |
1323 | /* NOT-REACHED */ |
1324 | } |
1325 | |
192b9cd1 |
1326 | XS(XS_Tie_Hash_NamedCapture_FETCH) |
80305961 |
1327 | { |
192b9cd1 |
1328 | dVAR; |
80305961 |
1329 | dXSARGS; |
192b9cd1 |
1330 | REGEXP * rx; |
1331 | U32 flags; |
1332 | SV * ret; |
1333 | |
1334 | if (items != 2) |
afa74d42 |
1335 | croak_xs_usage(cv, "$key, $flags"); |
192b9cd1 |
1336 | |
1337 | rx = PL_curpm ? PM_GETRE(PL_curpm) : NULL; |
1338 | |
1339 | if (!rx) |
1340 | XSRETURN_UNDEF; |
1341 | |
80305961 |
1342 | SP -= items; |
192b9cd1 |
1343 | |
daba3364 |
1344 | flags = (U32)INT2PTR(IV,SvIV(SvRV(MUTABLE_SV(ST(0))))); |
192b9cd1 |
1345 | ret = CALLREG_NAMED_BUFF_FETCH(rx, ST(1), flags); |
1346 | |
1347 | SPAGAIN; |
1348 | |
1349 | if (ret) { |
ec83ea38 |
1350 | mXPUSHs(ret); |
192b9cd1 |
1351 | PUTBACK; |
1352 | return; |
1353 | } |
1354 | XSRETURN_UNDEF; |
1355 | } |
1356 | |
1357 | XS(XS_Tie_Hash_NamedCapture_STORE) |
1358 | { |
1359 | dVAR; |
1360 | dXSARGS; |
1361 | REGEXP * rx; |
1362 | U32 flags; |
1363 | |
1364 | if (items != 3) |
afa74d42 |
1365 | croak_xs_usage(cv, "$key, $value, $flags"); |
192b9cd1 |
1366 | |
1367 | rx = PL_curpm ? PM_GETRE(PL_curpm) : NULL; |
1368 | |
1369 | if (!rx) { |
1370 | if (!PL_localizing) |
f1f66076 |
1371 | Perl_croak(aTHX_ "%s", PL_no_modify); |
192b9cd1 |
1372 | else |
28d8d7f4 |
1373 | XSRETURN_UNDEF; |
80305961 |
1374 | } |
192b9cd1 |
1375 | |
1376 | SP -= items; |
1377 | |
daba3364 |
1378 | flags = (U32)INT2PTR(IV,SvIV(SvRV(MUTABLE_SV(ST(0))))); |
192b9cd1 |
1379 | CALLREG_NAMED_BUFF_STORE(rx,ST(1), ST(2), flags); |
80305961 |
1380 | } |
1381 | |
192b9cd1 |
1382 | XS(XS_Tie_Hash_NamedCapture_DELETE) |
1383 | { |
1384 | dVAR; |
1385 | dXSARGS; |
1386 | REGEXP * rx = PL_curpm ? PM_GETRE(PL_curpm) : NULL; |
1387 | U32 flags; |
80305961 |
1388 | |
192b9cd1 |
1389 | if (items != 2) |
afa74d42 |
1390 | croak_xs_usage(cv, "$key, $flags"); |
192b9cd1 |
1391 | |
1392 | if (!rx) |
f1f66076 |
1393 | Perl_croak(aTHX_ "%s", PL_no_modify); |
192b9cd1 |
1394 | |
1395 | SP -= items; |
1396 | |
daba3364 |
1397 | flags = (U32)INT2PTR(IV,SvIV(SvRV(MUTABLE_SV(ST(0))))); |
192b9cd1 |
1398 | CALLREG_NAMED_BUFF_DELETE(rx, ST(1), flags); |
1399 | } |
1400 | |
1401 | XS(XS_Tie_Hash_NamedCapture_CLEAR) |
80305961 |
1402 | { |
192b9cd1 |
1403 | dVAR; |
80305961 |
1404 | dXSARGS; |
192b9cd1 |
1405 | REGEXP * rx; |
1406 | U32 flags; |
1407 | |
1408 | if (items != 1) |
afa74d42 |
1409 | croak_xs_usage(cv, "$flags"); |
192b9cd1 |
1410 | |
1411 | rx = PL_curpm ? PM_GETRE(PL_curpm) : NULL; |
1412 | |
1413 | if (!rx) |
f1f66076 |
1414 | Perl_croak(aTHX_ "%s", PL_no_modify); |
192b9cd1 |
1415 | |
80305961 |
1416 | SP -= items; |
80305961 |
1417 | |
daba3364 |
1418 | flags = (U32)INT2PTR(IV,SvIV(SvRV(MUTABLE_SV(ST(0))))); |
192b9cd1 |
1419 | CALLREG_NAMED_BUFF_CLEAR(rx, flags); |
1420 | } |
1421 | |
1422 | XS(XS_Tie_Hash_NamedCapture_EXISTS) |
1423 | { |
1424 | dVAR; |
1425 | dXSARGS; |
1426 | REGEXP * rx; |
1427 | U32 flags; |
1428 | SV * ret; |
1429 | |
1430 | if (items != 2) |
afa74d42 |
1431 | croak_xs_usage(cv, "$key, $flags"); |
192b9cd1 |
1432 | |
1433 | rx = PL_curpm ? PM_GETRE(PL_curpm) : NULL; |
1434 | |
1435 | if (!rx) |
28d8d7f4 |
1436 | XSRETURN_UNDEF; |
192b9cd1 |
1437 | |
1438 | SP -= items; |
1439 | |
daba3364 |
1440 | flags = (U32)INT2PTR(IV,SvIV(SvRV(MUTABLE_SV(ST(0))))); |
192b9cd1 |
1441 | ret = CALLREG_NAMED_BUFF_EXISTS(rx, ST(1), flags); |
1442 | |
1443 | SPAGAIN; |
1444 | |
1445 | XPUSHs(ret); |
80305961 |
1446 | PUTBACK; |
1447 | return; |
80305961 |
1448 | } |
1449 | |
86aa3d53 |
1450 | XS(XS_Tie_Hash_NamedCapture_FIRSTK) |
192b9cd1 |
1451 | { |
1452 | dVAR; |
1453 | dXSARGS; |
1454 | REGEXP * rx; |
1455 | U32 flags; |
1456 | SV * ret; |
80305961 |
1457 | |
192b9cd1 |
1458 | if (items != 1) |
afa74d42 |
1459 | croak_xs_usage(cv, ""); |
192b9cd1 |
1460 | |
1461 | rx = PL_curpm ? PM_GETRE(PL_curpm) : NULL; |
1462 | |
1463 | if (!rx) |
1464 | XSRETURN_UNDEF; |
1465 | |
1466 | SP -= items; |
1467 | |
daba3364 |
1468 | flags = (U32)INT2PTR(IV,SvIV(SvRV(MUTABLE_SV(ST(0))))); |
192b9cd1 |
1469 | ret = CALLREG_NAMED_BUFF_FIRSTKEY(rx, flags); |
1470 | |
1471 | SPAGAIN; |
1472 | |
1473 | if (ret) { |
ec83ea38 |
1474 | mXPUSHs(ret); |
192b9cd1 |
1475 | PUTBACK; |
1476 | } else { |
1477 | XSRETURN_UNDEF; |
1478 | } |
1479 | |
1480 | } |
1481 | |
86aa3d53 |
1482 | XS(XS_Tie_Hash_NamedCapture_NEXTK) |
80305961 |
1483 | { |
192b9cd1 |
1484 | dVAR; |
80305961 |
1485 | dXSARGS; |
192b9cd1 |
1486 | REGEXP * rx; |
1487 | U32 flags; |
1488 | SV * ret; |
1489 | |
1490 | if (items != 2) |
afa74d42 |
1491 | croak_xs_usage(cv, "$lastkey"); |
192b9cd1 |
1492 | |
1493 | rx = PL_curpm ? PM_GETRE(PL_curpm) : NULL; |
1494 | |
1495 | if (!rx) |
1496 | XSRETURN_UNDEF; |
80305961 |
1497 | |
80305961 |
1498 | SP -= items; |
192b9cd1 |
1499 | |
daba3364 |
1500 | flags = (U32)INT2PTR(IV,SvIV(SvRV(MUTABLE_SV(ST(0))))); |
192b9cd1 |
1501 | ret = CALLREG_NAMED_BUFF_NEXTKEY(rx, ST(1), flags); |
1502 | |
1503 | SPAGAIN; |
1504 | |
1505 | if (ret) { |
ec83ea38 |
1506 | mXPUSHs(ret); |
80305961 |
1507 | } else { |
1508 | XSRETURN_UNDEF; |
1509 | } |
1510 | PUTBACK; |
192b9cd1 |
1511 | } |
1512 | |
1513 | XS(XS_Tie_Hash_NamedCapture_SCALAR) |
1514 | { |
1515 | dVAR; |
1516 | dXSARGS; |
1517 | REGEXP * rx; |
1518 | U32 flags; |
1519 | SV * ret; |
1520 | |
1521 | if (items != 1) |
afa74d42 |
1522 | croak_xs_usage(cv, ""); |
192b9cd1 |
1523 | |
1524 | rx = PL_curpm ? PM_GETRE(PL_curpm) : NULL; |
1525 | |
1526 | if (!rx) |
1527 | XSRETURN_UNDEF; |
1528 | |
1529 | SP -= items; |
1530 | |
daba3364 |
1531 | flags = (U32)INT2PTR(IV,SvIV(SvRV(MUTABLE_SV(ST(0))))); |
192b9cd1 |
1532 | ret = CALLREG_NAMED_BUFF_SCALAR(rx, flags); |
1533 | |
1534 | SPAGAIN; |
1535 | |
1536 | if (ret) { |
ec83ea38 |
1537 | mXPUSHs(ret); |
192b9cd1 |
1538 | PUTBACK; |
1539 | return; |
1540 | } else { |
1541 | XSRETURN_UNDEF; |
1542 | } |
1543 | } |
1544 | |
1545 | XS(XS_Tie_Hash_NamedCapture_flags) |
1546 | { |
1547 | dVAR; |
1548 | dXSARGS; |
1549 | |
1550 | if (items != 0) |
afa74d42 |
1551 | croak_xs_usage(cv, ""); |
192b9cd1 |
1552 | |
6e449a3a |
1553 | mXPUSHu(RXapif_ONE); |
1554 | mXPUSHu(RXapif_ALL); |
192b9cd1 |
1555 | PUTBACK; |
1556 | return; |
80305961 |
1557 | } |
1558 | |
1559 | |
241d1a3b |
1560 | /* |
1561 | * Local variables: |
1562 | * c-indentation-style: bsd |
1563 | * c-basic-offset: 4 |
1564 | * indent-tabs-mode: t |
1565 | * End: |
1566 | * |
37442d52 |
1567 | * ex: set ts=8 sts=4 sw=4 noet: |
1568 | */ |