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(). |
192b9cd1 |
19 | * |
20 | * It is also used to store XS functions that need to be present in |
21 | * miniperl for a lack of a better place to put them. It might be |
22 | * clever to move them to seperate XS files which would then be pulled |
23 | * in by some to-be-written build process. |
166f8a29 |
24 | */ |
25 | |
6d4a7be2 |
26 | #include "EXTERN.h" |
864dbfa3 |
27 | #define PERL_IN_UNIVERSAL_C |
6d4a7be2 |
28 | #include "perl.h" |
6d4a7be2 |
29 | |
39f7a870 |
30 | #ifdef USE_PERLIO |
31 | #include "perliol.h" /* For the PERLIO_F_XXX */ |
32 | #endif |
33 | |
6d4a7be2 |
34 | /* |
35 | * Contributed by Graham Barr <Graham.Barr@tiuk.ti.com> |
36 | * The main guts of traverse_isa was actually copied from gv_fetchmeth |
37 | */ |
38 | |
a9ec700e |
39 | STATIC bool |
810e6113 |
40 | S_isa_lookup(pTHX_ HV *stash, const char * const name, const HV* const name_stash) |
6d4a7be2 |
41 | { |
97aff369 |
42 | dVAR; |
e1a479c5 |
43 | AV* stash_linear_isa; |
44 | SV** svp; |
bfcb3514 |
45 | const char *hvname; |
e1a479c5 |
46 | I32 items; |
6d4a7be2 |
47 | |
7918f24d |
48 | PERL_ARGS_ASSERT_ISA_LOOKUP; |
49 | |
301daebc |
50 | /* A stash/class can go by many names (ie. User == main::User), so |
51 | we compare the stash itself just in case */ |
34692224 |
52 | if (name_stash && ((const HV *)stash == name_stash)) |
a9ec700e |
53 | return TRUE; |
6d4a7be2 |
54 | |
bfcb3514 |
55 | hvname = HvNAME_get(stash); |
56 | |
57 | if (strEQ(hvname, name)) |
a9ec700e |
58 | return TRUE; |
6d4a7be2 |
59 | |
a1d407e8 |
60 | if (strEQ(name, "UNIVERSAL")) |
a9ec700e |
61 | return TRUE; |
a1d407e8 |
62 | |
e1a479c5 |
63 | stash_linear_isa = mro_get_linear_isa(stash); |
64 | svp = AvARRAY(stash_linear_isa) + 1; |
65 | items = AvFILLp(stash_linear_isa); |
66 | while (items--) { |
67 | SV* const basename_sv = *svp++; |
810e6113 |
68 | HV* const basestash = gv_stashsv(basename_sv, 0); |
dd69841b |
69 | if (!basestash) { |
d28af146 |
70 | /* We have no test coverage for this block, as of 2008/08. */ |
b0c482e3 |
71 | if (ckWARN(WARN_SYNTAX)) |
e1a479c5 |
72 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), |
73 | "Can't locate package %"SVf" for the parents of %s", |
74 | SVfARG(basename_sv), hvname); |
75 | continue; |
46e4b22b |
76 | } |
e1a479c5 |
77 | if(name_stash == basestash || strEQ(name, SvPVX(basename_sv))) |
78 | return TRUE; |
6d4a7be2 |
79 | } |
80 | |
a9ec700e |
81 | return FALSE; |
6d4a7be2 |
82 | } |
83 | |
954c1994 |
84 | /* |
ccfc67b7 |
85 | =head1 SV Manipulation Functions |
86 | |
954c1994 |
87 | =for apidoc sv_derived_from |
88 | |
6885da0e |
89 | Returns a boolean indicating whether the SV is derived from the specified class |
90 | I<at the C level>. To check derivation at the Perl level, call C<isa()> as a |
91 | normal Perl method. |
954c1994 |
92 | |
93 | =cut |
94 | */ |
95 | |
55497cff |
96 | bool |
15f169a1 |
97 | Perl_sv_derived_from(pTHX_ SV *sv, const char *const name) |
55497cff |
98 | { |
97aff369 |
99 | dVAR; |
0b6f4f5c |
100 | HV *stash; |
46e4b22b |
101 | |
7918f24d |
102 | PERL_ARGS_ASSERT_SV_DERIVED_FROM; |
103 | |
5b295bef |
104 | SvGETMAGIC(sv); |
55497cff |
105 | |
106 | if (SvROK(sv)) { |
0b6f4f5c |
107 | const char *type; |
55497cff |
108 | sv = SvRV(sv); |
109 | type = sv_reftype(sv,0); |
0b6f4f5c |
110 | if (type && strEQ(type,name)) |
111 | return TRUE; |
112 | stash = SvOBJECT(sv) ? SvSTASH(sv) : NULL; |
55497cff |
113 | } |
114 | else { |
da51bb9b |
115 | stash = gv_stashsv(sv, 0); |
55497cff |
116 | } |
46e4b22b |
117 | |
0b6f4f5c |
118 | if (stash) { |
da51bb9b |
119 | HV * const name_stash = gv_stashpv(name, 0); |
810e6113 |
120 | return isa_lookup(stash, name, name_stash); |
0b6f4f5c |
121 | } |
122 | else |
123 | return FALSE; |
301daebc |
124 | |
55497cff |
125 | } |
126 | |
cbc021f9 |
127 | /* |
128 | =for apidoc sv_does |
129 | |
130 | Returns a boolean indicating whether the SV performs a specific, named role. |
131 | The SV can be a Perl object or the name of a Perl class. |
132 | |
133 | =cut |
134 | */ |
135 | |
1b026014 |
136 | #include "XSUB.h" |
137 | |
cbc021f9 |
138 | bool |
15f169a1 |
139 | Perl_sv_does(pTHX_ SV *sv, const char *const name) |
cbc021f9 |
140 | { |
141 | const char *classname; |
142 | bool does_it; |
59e7186f |
143 | SV *methodname; |
cbc021f9 |
144 | dSP; |
7918f24d |
145 | |
146 | PERL_ARGS_ASSERT_SV_DOES; |
147 | |
cbc021f9 |
148 | ENTER; |
149 | SAVETMPS; |
150 | |
151 | SvGETMAGIC(sv); |
152 | |
153 | if (!SvOK(sv) || !(SvROK(sv) || (SvPOK(sv) && SvCUR(sv)) |
154 | || (SvGMAGICAL(sv) && SvPOKp(sv) && SvCUR(sv)))) |
155 | return FALSE; |
156 | |
157 | if (sv_isobject(sv)) { |
158 | classname = sv_reftype(SvRV(sv),TRUE); |
159 | } else { |
94707740 |
160 | classname = SvPV_nolen(sv); |
cbc021f9 |
161 | } |
162 | |
163 | if (strEQ(name,classname)) |
164 | return TRUE; |
165 | |
166 | PUSHMARK(SP); |
167 | XPUSHs(sv); |
6e449a3a |
168 | mXPUSHs(newSVpv(name, 0)); |
cbc021f9 |
169 | PUTBACK; |
170 | |
84bafc02 |
171 | methodname = newSVpvs_flags("isa", SVs_TEMP); |
59e7186f |
172 | /* ugly hack: use the SvSCREAM flag so S_method_common |
173 | * can figure out we're calling DOES() and not isa(), |
174 | * and report eventual errors correctly. --rgs */ |
175 | SvSCREAM_on(methodname); |
176 | call_sv(methodname, G_SCALAR | G_METHOD); |
cbc021f9 |
177 | SPAGAIN; |
178 | |
179 | does_it = SvTRUE( TOPs ); |
180 | FREETMPS; |
181 | LEAVE; |
182 | |
183 | return does_it; |
184 | } |
185 | |
27da23d5 |
186 | PERL_XS_EXPORT_C void XS_UNIVERSAL_isa(pTHX_ CV *cv); |
187 | PERL_XS_EXPORT_C void XS_UNIVERSAL_can(pTHX_ CV *cv); |
cbc021f9 |
188 | PERL_XS_EXPORT_C void XS_UNIVERSAL_DOES(pTHX_ CV *cv); |
27da23d5 |
189 | PERL_XS_EXPORT_C void XS_UNIVERSAL_VERSION(pTHX_ CV *cv); |
439cb1c4 |
190 | XS(XS_version_new); |
191 | XS(XS_version_stringify); |
192 | XS(XS_version_numify); |
9137345a |
193 | XS(XS_version_normal); |
439cb1c4 |
194 | XS(XS_version_vcmp); |
195 | XS(XS_version_boolean); |
2dfd8427 |
196 | #ifdef HASATTRIBUTE_NORETURN |
197 | XS(XS_version_noop) __attribute__noreturn__; |
198 | #else |
439cb1c4 |
199 | XS(XS_version_noop); |
2dfd8427 |
200 | #endif |
c8d69e4a |
201 | XS(XS_version_is_alpha); |
137d6fc0 |
202 | XS(XS_version_qv); |
8800c35a |
203 | XS(XS_utf8_is_utf8); |
1b026014 |
204 | XS(XS_utf8_valid); |
205 | XS(XS_utf8_encode); |
206 | XS(XS_utf8_decode); |
207 | XS(XS_utf8_upgrade); |
208 | XS(XS_utf8_downgrade); |
209 | XS(XS_utf8_unicode_to_native); |
210 | XS(XS_utf8_native_to_unicode); |
29569577 |
211 | XS(XS_Internals_SvREADONLY); |
212 | XS(XS_Internals_SvREFCNT); |
f044d0d1 |
213 | XS(XS_Internals_hv_clear_placehold); |
39f7a870 |
214 | XS(XS_PerlIO_get_layers); |
f63535fc |
215 | XS(XS_Regexp_DESTROY); |
9a7034eb |
216 | XS(XS_Internals_hash_seed); |
008fb0c0 |
217 | XS(XS_Internals_rehash_seed); |
05619474 |
218 | XS(XS_Internals_HvREHASH); |
e1234d8e |
219 | XS(XS_Internals_inc_sub_generation); |
80305961 |
220 | XS(XS_re_is_regexp); |
192b9cd1 |
221 | XS(XS_re_regname); |
222 | XS(XS_re_regnames); |
80305961 |
223 | XS(XS_re_regnames_count); |
192c1e27 |
224 | XS(XS_re_regexp_pattern); |
192b9cd1 |
225 | XS(XS_Tie_Hash_NamedCapture_FETCH); |
226 | XS(XS_Tie_Hash_NamedCapture_STORE); |
227 | XS(XS_Tie_Hash_NamedCapture_DELETE); |
228 | XS(XS_Tie_Hash_NamedCapture_CLEAR); |
229 | XS(XS_Tie_Hash_NamedCapture_EXISTS); |
86aa3d53 |
230 | XS(XS_Tie_Hash_NamedCapture_FIRSTK); |
231 | XS(XS_Tie_Hash_NamedCapture_NEXTK); |
192b9cd1 |
232 | XS(XS_Tie_Hash_NamedCapture_SCALAR); |
233 | XS(XS_Tie_Hash_NamedCapture_flags); |
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, "*;@"); |
f63535fc |
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, ";$"); |
28d8d7f4 |
287 | newXSproto("re::regnames_count", XS_re_regnames_count, file, ""); |
192c1e27 |
288 | newXSproto("re::regexp_pattern", XS_re_regexp_pattern, file, "$"); |
192b9cd1 |
289 | newXS("Tie::Hash::NamedCapture::FETCH", XS_Tie_Hash_NamedCapture_FETCH, file); |
290 | newXS("Tie::Hash::NamedCapture::STORE", XS_Tie_Hash_NamedCapture_STORE, file); |
291 | newXS("Tie::Hash::NamedCapture::DELETE", XS_Tie_Hash_NamedCapture_DELETE, file); |
292 | newXS("Tie::Hash::NamedCapture::CLEAR", XS_Tie_Hash_NamedCapture_CLEAR, file); |
293 | newXS("Tie::Hash::NamedCapture::EXISTS", XS_Tie_Hash_NamedCapture_EXISTS, file); |
86aa3d53 |
294 | newXS("Tie::Hash::NamedCapture::FIRSTKEY", XS_Tie_Hash_NamedCapture_FIRSTK, file); |
295 | newXS("Tie::Hash::NamedCapture::NEXTKEY", XS_Tie_Hash_NamedCapture_NEXTK, file); |
192b9cd1 |
296 | newXS("Tie::Hash::NamedCapture::SCALAR", XS_Tie_Hash_NamedCapture_SCALAR, file); |
297 | newXS("Tie::Hash::NamedCapture::flags", XS_Tie_Hash_NamedCapture_flags, file); |
0cb96387 |
298 | } |
299 | |
afa74d42 |
300 | /* |
301 | =for apidoc croak_xs_usage |
302 | |
303 | A specialised variant of C<croak()> for emitting the usage message for xsubs |
304 | |
305 | croak_xs_usage(cv, "eee_yow"); |
306 | |
307 | works out the package name and subroutine name from C<cv>, and then calls |
308 | C<croak()>. Hence if C<cv> is C<&ouch::awk>, it would call C<croak> as: |
309 | |
310 | Perl_croak(aTHX_ "Usage %s::%s(%s)", "ouch" "awk", "eee_yow"); |
311 | |
312 | =cut |
313 | */ |
314 | |
315 | void |
316 | Perl_croak_xs_usage(pTHX_ const CV *const cv, const char *const params) |
317 | { |
318 | const GV *const gv = CvGV(cv); |
319 | |
320 | PERL_ARGS_ASSERT_CROAK_XS_USAGE; |
321 | |
322 | if (gv) { |
323 | const char *const gvname = GvNAME(gv); |
324 | const HV *const stash = GvSTASH(gv); |
325 | const char *const hvname = stash ? HvNAME_get(stash) : NULL; |
326 | |
327 | if (hvname) |
328 | Perl_croak(aTHX_ "Usage: %s::%s(%s)", hvname, gvname, params); |
329 | else |
330 | Perl_croak(aTHX_ "Usage: %s(%s)", gvname, params); |
331 | } else { |
332 | /* Pants. I don't think that it should be possible to get here. */ |
93c51217 |
333 | Perl_croak(aTHX_ "Usage: CODE(0x%"UVxf")(%s)", PTR2UV(cv), params); |
afa74d42 |
334 | } |
335 | } |
55497cff |
336 | |
6d4a7be2 |
337 | XS(XS_UNIVERSAL_isa) |
338 | { |
97aff369 |
339 | dVAR; |
6d4a7be2 |
340 | dXSARGS; |
6d4a7be2 |
341 | |
342 | if (items != 2) |
afa74d42 |
343 | croak_xs_usage(cv, "reference, kind"); |
c4420975 |
344 | else { |
345 | SV * const sv = ST(0); |
346 | const char *name; |
6d4a7be2 |
347 | |
c4420975 |
348 | SvGETMAGIC(sv); |
d3f7f2b2 |
349 | |
c4420975 |
350 | if (!SvOK(sv) || !(SvROK(sv) || (SvPOK(sv) && SvCUR(sv)) |
351 | || (SvGMAGICAL(sv) && SvPOKp(sv) && SvCUR(sv)))) |
352 | XSRETURN_UNDEF; |
f8f70380 |
353 | |
c4420975 |
354 | name = SvPV_nolen_const(ST(1)); |
6d4a7be2 |
355 | |
c4420975 |
356 | ST(0) = boolSV(sv_derived_from(sv, name)); |
357 | XSRETURN(1); |
358 | } |
6d4a7be2 |
359 | } |
360 | |
6d4a7be2 |
361 | XS(XS_UNIVERSAL_can) |
362 | { |
97aff369 |
363 | dVAR; |
6d4a7be2 |
364 | dXSARGS; |
365 | SV *sv; |
6867be6d |
366 | const char *name; |
6d4a7be2 |
367 | SV *rv; |
6f08146e |
368 | HV *pkg = NULL; |
6d4a7be2 |
369 | |
370 | if (items != 2) |
afa74d42 |
371 | croak_xs_usage(cv, "object-ref, method"); |
6d4a7be2 |
372 | |
373 | sv = ST(0); |
f8f70380 |
374 | |
5b295bef |
375 | SvGETMAGIC(sv); |
d3f7f2b2 |
376 | |
253ecd6d |
377 | if (!SvOK(sv) || !(SvROK(sv) || (SvPOK(sv) && SvCUR(sv)) |
378 | || (SvGMAGICAL(sv) && SvPOKp(sv) && SvCUR(sv)))) |
f8f70380 |
379 | XSRETURN_UNDEF; |
380 | |
0510663f |
381 | name = SvPV_nolen_const(ST(1)); |
3280af22 |
382 | rv = &PL_sv_undef; |
6d4a7be2 |
383 | |
46e4b22b |
384 | if (SvROK(sv)) { |
6f08146e |
385 | sv = (SV*)SvRV(sv); |
46e4b22b |
386 | if (SvOBJECT(sv)) |
6f08146e |
387 | pkg = SvSTASH(sv); |
388 | } |
389 | else { |
da51bb9b |
390 | pkg = gv_stashsv(sv, 0); |
6f08146e |
391 | } |
392 | |
393 | if (pkg) { |
c4420975 |
394 | GV * const gv = gv_fetchmethod_autoload(pkg, name, FALSE); |
dc848c6f |
395 | if (gv && isGV(gv)) |
396 | rv = sv_2mortal(newRV((SV*)GvCV(gv))); |
6d4a7be2 |
397 | } |
398 | |
399 | ST(0) = rv; |
400 | XSRETURN(1); |
401 | } |
402 | |
cbc021f9 |
403 | XS(XS_UNIVERSAL_DOES) |
404 | { |
405 | dVAR; |
406 | dXSARGS; |
58c0efa5 |
407 | PERL_UNUSED_ARG(cv); |
cbc021f9 |
408 | |
409 | if (items != 2) |
26be3db7 |
410 | Perl_croak(aTHX_ "Usage: invocant->DOES(kind)"); |
cbc021f9 |
411 | else { |
412 | SV * const sv = ST(0); |
413 | const char *name; |
414 | |
415 | name = SvPV_nolen_const(ST(1)); |
416 | if (sv_does( sv, name )) |
417 | XSRETURN_YES; |
418 | |
419 | XSRETURN_NO; |
420 | } |
421 | } |
422 | |
6d4a7be2 |
423 | XS(XS_UNIVERSAL_VERSION) |
424 | { |
97aff369 |
425 | dVAR; |
6d4a7be2 |
426 | dXSARGS; |
427 | HV *pkg; |
428 | GV **gvp; |
429 | GV *gv; |
430 | SV *sv; |
e1ec3a88 |
431 | const char *undef; |
58c0efa5 |
432 | PERL_UNUSED_ARG(cv); |
6d4a7be2 |
433 | |
1571675a |
434 | if (SvROK(ST(0))) { |
6d4a7be2 |
435 | sv = (SV*)SvRV(ST(0)); |
1571675a |
436 | if (!SvOBJECT(sv)) |
cea2e8a9 |
437 | Perl_croak(aTHX_ "Cannot find version of an unblessed reference"); |
6d4a7be2 |
438 | pkg = SvSTASH(sv); |
439 | } |
440 | else { |
da51bb9b |
441 | pkg = gv_stashsv(ST(0), 0); |
6d4a7be2 |
442 | } |
443 | |
4608196e |
444 | gvp = pkg ? (GV**)hv_fetchs(pkg, "VERSION", FALSE) : NULL; |
6d4a7be2 |
445 | |
0008872a |
446 | if (gvp && isGV(gv = *gvp) && (sv = GvSV(gv)) && SvOK(sv)) { |
c4420975 |
447 | SV * const nsv = sv_newmortal(); |
6d4a7be2 |
448 | sv_setsv(nsv, sv); |
449 | sv = nsv; |
137d6fc0 |
450 | if ( !sv_derived_from(sv, "version")) |
ac0e6a2f |
451 | upg_version(sv, FALSE); |
c445ea15 |
452 | undef = NULL; |
6d4a7be2 |
453 | } |
454 | else { |
3280af22 |
455 | sv = (SV*)&PL_sv_undef; |
6d4a7be2 |
456 | undef = "(undef)"; |
457 | } |
458 | |
1571675a |
459 | if (items > 1) { |
1571675a |
460 | SV *req = ST(1); |
461 | |
62658f4d |
462 | if (undef) { |
bfcb3514 |
463 | if (pkg) { |
c4420975 |
464 | const char * const name = HvNAME_get(pkg); |
a3b680e6 |
465 | Perl_croak(aTHX_ |
bfcb3514 |
466 | "%s does not define $%s::VERSION--version check failed", |
467 | name, name); |
468 | } else { |
a3b680e6 |
469 | Perl_croak(aTHX_ |
470 | "%s defines neither package nor VERSION--version check failed", |
0510663f |
471 | SvPVx_nolen_const(ST(0)) ); |
62658f4d |
472 | } |
473 | } |
ad63d80f |
474 | |
137d6fc0 |
475 | if ( !sv_derived_from(req, "version")) { |
476 | /* req may very well be R/O, so create a new object */ |
ac0e6a2f |
477 | req = sv_2mortal( new_version(req) ); |
137d6fc0 |
478 | } |
1571675a |
479 | |
ac0e6a2f |
480 | if ( vcmp( req, sv ) > 0 ) { |
481 | if ( hv_exists((HV*)SvRV(req), "qv", 2 ) ) { |
482 | Perl_croak(aTHX_ "%s version %"SVf" required--" |
483 | "this is only version %"SVf"", HvNAME_get(pkg), |
be2597df |
484 | SVfARG(vnormal(req)), |
be2597df |
485 | SVfARG(vnormal(sv))); |
ac0e6a2f |
486 | } else { |
487 | Perl_croak(aTHX_ "%s version %"SVf" required--" |
488 | "this is only version %"SVf"", HvNAME_get(pkg), |
8cb289bd |
489 | SVfARG(vstringify(req)), |
490 | SVfARG(vstringify(sv))); |
ac0e6a2f |
491 | } |
492 | } |
493 | |
2d8e6c8d |
494 | } |
6d4a7be2 |
495 | |
2b140d5b |
496 | if ( SvOK(sv) && sv_derived_from(sv, "version") ) { |
8cb289bd |
497 | ST(0) = vstringify(sv); |
13f8f398 |
498 | } else { |
499 | ST(0) = sv; |
b38a9dc5 |
500 | } |
6d4a7be2 |
501 | |
502 | XSRETURN(1); |
503 | } |
504 | |
439cb1c4 |
505 | XS(XS_version_new) |
506 | { |
97aff369 |
507 | dVAR; |
439cb1c4 |
508 | dXSARGS; |
129318bd |
509 | if (items > 3) |
afa74d42 |
510 | croak_xs_usage(cv, "class, version"); |
439cb1c4 |
511 | SP -= items; |
512 | { |
137d6fc0 |
513 | SV *vs = ST(1); |
514 | SV *rv; |
c4420975 |
515 | const char * const classname = |
516 | sv_isobject(ST(0)) /* get the class if called as an object method */ |
517 | ? HvNAME(SvSTASH(SvRV(ST(0)))) |
518 | : (char *)SvPV_nolen(ST(0)); |
9137345a |
519 | |
92dcf8ce |
520 | if ( items == 1 || vs == &PL_sv_undef ) { /* no param or explicit undef */ |
521 | /* create empty object */ |
522 | vs = sv_newmortal(); |
523 | sv_setpvn(vs,"",0); |
9137345a |
524 | } |
525 | else if ( items == 3 ) { |
526 | vs = sv_newmortal(); |
cfd0369c |
527 | Perl_sv_setpvf(aTHX_ vs,"v%s",SvPV_nolen_const(ST(2))); |
129318bd |
528 | } |
439cb1c4 |
529 | |
137d6fc0 |
530 | rv = new_version(vs); |
0723351e |
531 | if ( strcmp(classname,"version") != 0 ) /* inherited new() */ |
da51bb9b |
532 | sv_bless(rv, gv_stashpv(classname, GV_ADD)); |
137d6fc0 |
533 | |
6e449a3a |
534 | mPUSHs(rv); |
439cb1c4 |
535 | PUTBACK; |
536 | return; |
537 | } |
538 | } |
539 | |
540 | XS(XS_version_stringify) |
541 | { |
97aff369 |
542 | dVAR; |
41be1fbd |
543 | dXSARGS; |
544 | if (items < 1) |
afa74d42 |
545 | croak_xs_usage(cv, "lobj, ..."); |
41be1fbd |
546 | SP -= items; |
547 | { |
7452cf6a |
548 | SV * lobj; |
41be1fbd |
549 | |
550 | if (sv_derived_from(ST(0), "version")) { |
9137345a |
551 | lobj = SvRV(ST(0)); |
41be1fbd |
552 | } |
553 | else |
554 | Perl_croak(aTHX_ "lobj is not of type version"); |
555 | |
6e449a3a |
556 | mPUSHs(vstringify(lobj)); |
41be1fbd |
557 | |
558 | PUTBACK; |
559 | return; |
560 | } |
439cb1c4 |
561 | } |
562 | |
563 | XS(XS_version_numify) |
564 | { |
97aff369 |
565 | dVAR; |
41be1fbd |
566 | dXSARGS; |
567 | if (items < 1) |
afa74d42 |
568 | croak_xs_usage(cv, "lobj, ..."); |
41be1fbd |
569 | SP -= items; |
570 | { |
7452cf6a |
571 | SV * lobj; |
41be1fbd |
572 | |
573 | if (sv_derived_from(ST(0), "version")) { |
9137345a |
574 | lobj = SvRV(ST(0)); |
41be1fbd |
575 | } |
576 | else |
577 | Perl_croak(aTHX_ "lobj is not of type version"); |
578 | |
6e449a3a |
579 | mPUSHs(vnumify(lobj)); |
41be1fbd |
580 | |
581 | PUTBACK; |
582 | return; |
583 | } |
439cb1c4 |
584 | } |
585 | |
9137345a |
586 | XS(XS_version_normal) |
587 | { |
97aff369 |
588 | dVAR; |
9137345a |
589 | dXSARGS; |
590 | if (items < 1) |
afa74d42 |
591 | croak_xs_usage(cv, "lobj, ..."); |
9137345a |
592 | SP -= items; |
593 | { |
7452cf6a |
594 | SV * lobj; |
9137345a |
595 | |
596 | if (sv_derived_from(ST(0), "version")) { |
597 | lobj = SvRV(ST(0)); |
598 | } |
599 | else |
600 | Perl_croak(aTHX_ "lobj is not of type version"); |
601 | |
6e449a3a |
602 | mPUSHs(vnormal(lobj)); |
9137345a |
603 | |
604 | PUTBACK; |
605 | return; |
606 | } |
607 | } |
608 | |
439cb1c4 |
609 | XS(XS_version_vcmp) |
610 | { |
97aff369 |
611 | dVAR; |
41be1fbd |
612 | dXSARGS; |
613 | if (items < 1) |
afa74d42 |
614 | croak_xs_usage(cv, "lobj, ..."); |
41be1fbd |
615 | SP -= items; |
616 | { |
7452cf6a |
617 | SV * lobj; |
41be1fbd |
618 | |
619 | if (sv_derived_from(ST(0), "version")) { |
9137345a |
620 | lobj = SvRV(ST(0)); |
41be1fbd |
621 | } |
622 | else |
623 | Perl_croak(aTHX_ "lobj is not of type version"); |
624 | |
625 | { |
626 | SV *rs; |
627 | SV *rvs; |
628 | SV * robj = ST(1); |
7452cf6a |
629 | const IV swap = (IV)SvIV(ST(2)); |
41be1fbd |
630 | |
631 | if ( ! sv_derived_from(robj, "version") ) |
632 | { |
633 | robj = new_version(robj); |
634 | } |
635 | rvs = SvRV(robj); |
636 | |
637 | if ( swap ) |
638 | { |
639 | rs = newSViv(vcmp(rvs,lobj)); |
640 | } |
641 | else |
642 | { |
643 | rs = newSViv(vcmp(lobj,rvs)); |
644 | } |
645 | |
6e449a3a |
646 | mPUSHs(rs); |
41be1fbd |
647 | } |
648 | |
649 | PUTBACK; |
650 | return; |
651 | } |
439cb1c4 |
652 | } |
653 | |
654 | XS(XS_version_boolean) |
655 | { |
97aff369 |
656 | dVAR; |
657 | dXSARGS; |
658 | if (items < 1) |
afa74d42 |
659 | croak_xs_usage(cv, "lobj, ..."); |
97aff369 |
660 | SP -= items; |
c4420975 |
661 | if (sv_derived_from(ST(0), "version")) { |
662 | SV * const lobj = SvRV(ST(0)); |
396482e1 |
663 | SV * const rs = newSViv( vcmp(lobj,new_version(newSVpvs("0"))) ); |
6e449a3a |
664 | mPUSHs(rs); |
c4420975 |
665 | PUTBACK; |
666 | return; |
667 | } |
668 | else |
669 | Perl_croak(aTHX_ "lobj is not of type version"); |
439cb1c4 |
670 | } |
671 | |
672 | XS(XS_version_noop) |
673 | { |
97aff369 |
674 | dVAR; |
2dfd8427 |
675 | dXSARGS; |
676 | if (items < 1) |
afa74d42 |
677 | croak_xs_usage(cv, "lobj, ..."); |
2dfd8427 |
678 | if (sv_derived_from(ST(0), "version")) |
679 | Perl_croak(aTHX_ "operation not supported with version object"); |
680 | else |
681 | Perl_croak(aTHX_ "lobj is not of type version"); |
682 | #ifndef HASATTRIBUTE_NORETURN |
683 | XSRETURN_EMPTY; |
684 | #endif |
439cb1c4 |
685 | } |
686 | |
c8d69e4a |
687 | XS(XS_version_is_alpha) |
688 | { |
97aff369 |
689 | dVAR; |
c8d69e4a |
690 | dXSARGS; |
691 | if (items != 1) |
afa74d42 |
692 | croak_xs_usage(cv, "lobj"); |
c8d69e4a |
693 | SP -= items; |
c4420975 |
694 | if (sv_derived_from(ST(0), "version")) { |
695 | SV * const lobj = ST(0); |
696 | if ( hv_exists((HV*)SvRV(lobj), "alpha", 5 ) ) |
697 | XSRETURN_YES; |
698 | else |
699 | XSRETURN_NO; |
c8d69e4a |
700 | PUTBACK; |
701 | return; |
702 | } |
c4420975 |
703 | else |
704 | Perl_croak(aTHX_ "lobj is not of type version"); |
c8d69e4a |
705 | } |
706 | |
137d6fc0 |
707 | XS(XS_version_qv) |
708 | { |
97aff369 |
709 | dVAR; |
137d6fc0 |
710 | dXSARGS; |
711 | if (items != 1) |
afa74d42 |
712 | croak_xs_usage(cv, "ver"); |
137d6fc0 |
713 | SP -= items; |
714 | { |
715 | SV * ver = ST(0); |
c4420975 |
716 | if ( !SvVOK(ver) ) { /* only need to do with if not already v-string */ |
ac0e6a2f |
717 | SV * const rv = sv_newmortal(); |
718 | sv_setsv(rv,ver); /* make a duplicate */ |
719 | upg_version(rv, TRUE); |
720 | PUSHs(rv); |
137d6fc0 |
721 | } |
722 | else |
723 | { |
6e449a3a |
724 | mPUSHs(new_version(ver)); |
137d6fc0 |
725 | } |
726 | |
727 | PUTBACK; |
728 | return; |
729 | } |
730 | } |
731 | |
8800c35a |
732 | XS(XS_utf8_is_utf8) |
733 | { |
97aff369 |
734 | dVAR; |
41be1fbd |
735 | dXSARGS; |
736 | if (items != 1) |
afa74d42 |
737 | croak_xs_usage(cv, "sv"); |
c4420975 |
738 | else { |
739 | const SV * const sv = ST(0); |
740 | if (SvUTF8(sv)) |
741 | XSRETURN_YES; |
742 | else |
743 | XSRETURN_NO; |
41be1fbd |
744 | } |
745 | XSRETURN_EMPTY; |
8800c35a |
746 | } |
747 | |
1b026014 |
748 | XS(XS_utf8_valid) |
749 | { |
97aff369 |
750 | dVAR; |
41be1fbd |
751 | dXSARGS; |
752 | if (items != 1) |
afa74d42 |
753 | croak_xs_usage(cv, "sv"); |
c4420975 |
754 | else { |
755 | SV * const sv = ST(0); |
756 | STRLEN len; |
757 | const char * const s = SvPV_const(sv,len); |
758 | if (!SvUTF8(sv) || is_utf8_string((const U8*)s,len)) |
759 | XSRETURN_YES; |
760 | else |
761 | XSRETURN_NO; |
762 | } |
41be1fbd |
763 | XSRETURN_EMPTY; |
1b026014 |
764 | } |
765 | |
766 | XS(XS_utf8_encode) |
767 | { |
97aff369 |
768 | dVAR; |
1b026014 |
769 | dXSARGS; |
770 | if (items != 1) |
afa74d42 |
771 | croak_xs_usage(cv, "sv"); |
c4420975 |
772 | sv_utf8_encode(ST(0)); |
1b026014 |
773 | XSRETURN_EMPTY; |
774 | } |
775 | |
776 | XS(XS_utf8_decode) |
777 | { |
97aff369 |
778 | dVAR; |
1b026014 |
779 | dXSARGS; |
780 | if (items != 1) |
afa74d42 |
781 | croak_xs_usage(cv, "sv"); |
c4420975 |
782 | else { |
783 | SV * const sv = ST(0); |
6867be6d |
784 | const bool RETVAL = sv_utf8_decode(sv); |
1b026014 |
785 | ST(0) = boolSV(RETVAL); |
786 | sv_2mortal(ST(0)); |
787 | } |
788 | XSRETURN(1); |
789 | } |
790 | |
791 | XS(XS_utf8_upgrade) |
792 | { |
97aff369 |
793 | dVAR; |
1b026014 |
794 | dXSARGS; |
795 | if (items != 1) |
afa74d42 |
796 | croak_xs_usage(cv, "sv"); |
c4420975 |
797 | else { |
798 | SV * const sv = ST(0); |
1b026014 |
799 | STRLEN RETVAL; |
800 | dXSTARG; |
801 | |
802 | RETVAL = sv_utf8_upgrade(sv); |
803 | XSprePUSH; PUSHi((IV)RETVAL); |
804 | } |
805 | XSRETURN(1); |
806 | } |
807 | |
808 | XS(XS_utf8_downgrade) |
809 | { |
97aff369 |
810 | dVAR; |
1b026014 |
811 | dXSARGS; |
812 | if (items < 1 || items > 2) |
afa74d42 |
813 | croak_xs_usage(cv, "sv, failok=0"); |
c4420975 |
814 | else { |
815 | SV * const sv = ST(0); |
6867be6d |
816 | const bool failok = (items < 2) ? 0 : (int)SvIV(ST(1)); |
817 | const bool RETVAL = sv_utf8_downgrade(sv, failok); |
1b026014 |
818 | |
1b026014 |
819 | ST(0) = boolSV(RETVAL); |
820 | sv_2mortal(ST(0)); |
821 | } |
822 | XSRETURN(1); |
823 | } |
824 | |
825 | XS(XS_utf8_native_to_unicode) |
826 | { |
97aff369 |
827 | dVAR; |
1b026014 |
828 | dXSARGS; |
6867be6d |
829 | const UV uv = SvUV(ST(0)); |
b7953727 |
830 | |
831 | if (items > 1) |
afa74d42 |
832 | croak_xs_usage(cv, "sv"); |
b7953727 |
833 | |
1b026014 |
834 | ST(0) = sv_2mortal(newSViv(NATIVE_TO_UNI(uv))); |
835 | XSRETURN(1); |
836 | } |
837 | |
838 | XS(XS_utf8_unicode_to_native) |
839 | { |
97aff369 |
840 | dVAR; |
1b026014 |
841 | dXSARGS; |
6867be6d |
842 | const UV uv = SvUV(ST(0)); |
b7953727 |
843 | |
844 | if (items > 1) |
afa74d42 |
845 | croak_xs_usage(cv, "sv"); |
b7953727 |
846 | |
1b026014 |
847 | ST(0) = sv_2mortal(newSViv(UNI_TO_NATIVE(uv))); |
848 | XSRETURN(1); |
849 | } |
850 | |
14a976d6 |
851 | XS(XS_Internals_SvREADONLY) /* This is dangerous stuff. */ |
29569577 |
852 | { |
97aff369 |
853 | dVAR; |
29569577 |
854 | dXSARGS; |
c4420975 |
855 | SV * const sv = SvRV(ST(0)); |
58c0efa5 |
856 | PERL_UNUSED_ARG(cv); |
6867be6d |
857 | |
29569577 |
858 | if (items == 1) { |
859 | if (SvREADONLY(sv)) |
860 | XSRETURN_YES; |
861 | else |
862 | XSRETURN_NO; |
863 | } |
864 | else if (items == 2) { |
865 | if (SvTRUE(ST(1))) { |
866 | SvREADONLY_on(sv); |
867 | XSRETURN_YES; |
868 | } |
869 | else { |
14a976d6 |
870 | /* I hope you really know what you are doing. */ |
29569577 |
871 | SvREADONLY_off(sv); |
872 | XSRETURN_NO; |
873 | } |
874 | } |
14a976d6 |
875 | XSRETURN_UNDEF; /* Can't happen. */ |
29569577 |
876 | } |
877 | |
14a976d6 |
878 | XS(XS_Internals_SvREFCNT) /* This is dangerous stuff. */ |
29569577 |
879 | { |
97aff369 |
880 | dVAR; |
29569577 |
881 | dXSARGS; |
c4420975 |
882 | SV * const sv = SvRV(ST(0)); |
58c0efa5 |
883 | PERL_UNUSED_ARG(cv); |
6867be6d |
884 | |
29569577 |
885 | if (items == 1) |
14a976d6 |
886 | XSRETURN_IV(SvREFCNT(sv) - 1); /* Minus the ref created for us. */ |
29569577 |
887 | else if (items == 2) { |
14a976d6 |
888 | /* I hope you really know what you are doing. */ |
29569577 |
889 | SvREFCNT(sv) = SvIV(ST(1)); |
890 | XSRETURN_IV(SvREFCNT(sv)); |
891 | } |
14a976d6 |
892 | XSRETURN_UNDEF; /* Can't happen. */ |
29569577 |
893 | } |
894 | |
f044d0d1 |
895 | XS(XS_Internals_hv_clear_placehold) |
dfd4ef2f |
896 | { |
97aff369 |
897 | dVAR; |
dfd4ef2f |
898 | dXSARGS; |
6867be6d |
899 | |
3540d4ce |
900 | if (items != 1) |
afa74d42 |
901 | croak_xs_usage(cv, "hv"); |
c4420975 |
902 | else { |
903 | HV * const hv = (HV *) SvRV(ST(0)); |
904 | hv_clear_placeholders(hv); |
905 | XSRETURN(0); |
906 | } |
dfd4ef2f |
907 | } |
39f7a870 |
908 | |
f63535fc |
909 | XS(XS_Regexp_DESTROY) |
910 | { |
911 | PERL_UNUSED_CONTEXT; |
912 | PERL_UNUSED_ARG(cv); |
913 | } |
914 | |
39f7a870 |
915 | XS(XS_PerlIO_get_layers) |
916 | { |
97aff369 |
917 | dVAR; |
39f7a870 |
918 | dXSARGS; |
919 | if (items < 1 || items % 2 == 0) |
afa74d42 |
920 | croak_xs_usage(cv, "filehandle[,args]"); |
5fef3b4a |
921 | #ifdef USE_PERLIO |
39f7a870 |
922 | { |
923 | SV * sv; |
924 | GV * gv; |
925 | IO * io; |
926 | bool input = TRUE; |
927 | bool details = FALSE; |
928 | |
929 | if (items > 1) { |
c4420975 |
930 | SV * const *svp; |
39f7a870 |
931 | for (svp = MARK + 2; svp <= SP; svp += 2) { |
c4420975 |
932 | SV * const * const varp = svp; |
933 | SV * const * const valp = svp + 1; |
39f7a870 |
934 | STRLEN klen; |
c4420975 |
935 | const char * const key = SvPV_const(*varp, klen); |
39f7a870 |
936 | |
937 | switch (*key) { |
938 | case 'i': |
939 | if (klen == 5 && memEQ(key, "input", 5)) { |
940 | input = SvTRUE(*valp); |
941 | break; |
942 | } |
943 | goto fail; |
944 | case 'o': |
945 | if (klen == 6 && memEQ(key, "output", 6)) { |
946 | input = !SvTRUE(*valp); |
947 | break; |
948 | } |
949 | goto fail; |
950 | case 'd': |
951 | if (klen == 7 && memEQ(key, "details", 7)) { |
952 | details = SvTRUE(*valp); |
953 | break; |
954 | } |
955 | goto fail; |
956 | default: |
957 | fail: |
958 | Perl_croak(aTHX_ |
959 | "get_layers: unknown argument '%s'", |
960 | key); |
961 | } |
962 | } |
963 | |
964 | SP -= (items - 1); |
965 | } |
966 | |
967 | sv = POPs; |
968 | gv = (GV*)sv; |
969 | |
970 | if (!isGV(sv)) { |
971 | if (SvROK(sv) && isGV(SvRV(sv))) |
972 | gv = (GV*)SvRV(sv); |
671d49be |
973 | else if (SvPOKp(sv)) |
f776e3cd |
974 | gv = gv_fetchsv(sv, 0, SVt_PVIO); |
39f7a870 |
975 | } |
976 | |
977 | if (gv && (io = GvIO(gv))) { |
c4420975 |
978 | AV* const av = PerlIO_get_layers(aTHX_ input ? |
39f7a870 |
979 | IoIFP(io) : IoOFP(io)); |
980 | I32 i; |
c4420975 |
981 | const I32 last = av_len(av); |
39f7a870 |
982 | I32 nitem = 0; |
983 | |
984 | for (i = last; i >= 0; i -= 3) { |
c4420975 |
985 | SV * const * const namsvp = av_fetch(av, i - 2, FALSE); |
986 | SV * const * const argsvp = av_fetch(av, i - 1, FALSE); |
987 | SV * const * const flgsvp = av_fetch(av, i, FALSE); |
39f7a870 |
988 | |
c4420975 |
989 | const bool namok = namsvp && *namsvp && SvPOK(*namsvp); |
990 | const bool argok = argsvp && *argsvp && SvPOK(*argsvp); |
991 | const bool flgok = flgsvp && *flgsvp && SvIOK(*flgsvp); |
39f7a870 |
992 | |
993 | if (details) { |
92e45a3e |
994 | /* Indents of 5? Yuck. */ |
995 | /* We know that PerlIO_get_layers creates a new SV for |
996 | the name and flags, so we can just take a reference |
997 | and "steal" it when we free the AV below. */ |
ec3bab8e |
998 | XPUSHs(namok |
92e45a3e |
999 | ? sv_2mortal(SvREFCNT_inc_simple_NN(*namsvp)) |
ec3bab8e |
1000 | : &PL_sv_undef); |
1001 | XPUSHs(argok |
92e45a3e |
1002 | ? newSVpvn_flags(SvPVX_const(*argsvp), |
1003 | SvCUR(*argsvp), |
1004 | (SvUTF8(*argsvp) ? SVf_UTF8 : 0) |
1005 | | SVs_TEMP) |
1006 | : &PL_sv_undef); |
1007 | XPUSHs(namok |
1008 | ? sv_2mortal(SvREFCNT_inc_simple_NN(*flgsvp)) |
ec3bab8e |
1009 | : &PL_sv_undef); |
39f7a870 |
1010 | nitem += 3; |
1011 | } |
1012 | else { |
1013 | if (namok && argok) |
1eb9e81d |
1014 | XPUSHs(sv_2mortal(Perl_newSVpvf(aTHX_ "%"SVf"(%"SVf")", |
be2597df |
1015 | SVfARG(*namsvp), |
1eb9e81d |
1016 | SVfARG(*argsvp)))); |
39f7a870 |
1017 | else if (namok) |
92e45a3e |
1018 | XPUSHs(sv_2mortal(SvREFCNT_inc_simple_NN(*namsvp))); |
39f7a870 |
1019 | else |
1020 | XPUSHs(&PL_sv_undef); |
1021 | nitem++; |
1022 | if (flgok) { |
c4420975 |
1023 | const IV flags = SvIVX(*flgsvp); |
39f7a870 |
1024 | |
1025 | if (flags & PERLIO_F_UTF8) { |
84bafc02 |
1026 | XPUSHs(newSVpvs_flags("utf8", SVs_TEMP)); |
39f7a870 |
1027 | nitem++; |
1028 | } |
1029 | } |
1030 | } |
1031 | } |
1032 | |
1033 | SvREFCNT_dec(av); |
1034 | |
1035 | XSRETURN(nitem); |
1036 | } |
1037 | } |
5fef3b4a |
1038 | #endif |
39f7a870 |
1039 | |
1040 | XSRETURN(0); |
1041 | } |
1042 | |
9a7034eb |
1043 | XS(XS_Internals_hash_seed) |
c910b28a |
1044 | { |
97aff369 |
1045 | dVAR; |
c85d3f85 |
1046 | /* Using dXSARGS would also have dITEM and dSP, |
1047 | * which define 2 unused local variables. */ |
557b887a |
1048 | dAXMARK; |
53c1dcc0 |
1049 | PERL_UNUSED_ARG(cv); |
ad73156c |
1050 | PERL_UNUSED_VAR(mark); |
81eaca17 |
1051 | XSRETURN_UV(PERL_HASH_SEED); |
c910b28a |
1052 | } |
1053 | |
008fb0c0 |
1054 | XS(XS_Internals_rehash_seed) |
8e90d776 |
1055 | { |
97aff369 |
1056 | dVAR; |
8e90d776 |
1057 | /* Using dXSARGS would also have dITEM and dSP, |
1058 | * which define 2 unused local variables. */ |
557b887a |
1059 | dAXMARK; |
53c1dcc0 |
1060 | PERL_UNUSED_ARG(cv); |
ad73156c |
1061 | PERL_UNUSED_VAR(mark); |
008fb0c0 |
1062 | XSRETURN_UV(PL_rehash_seed); |
8e90d776 |
1063 | } |
1064 | |
05619474 |
1065 | XS(XS_Internals_HvREHASH) /* Subject to change */ |
1066 | { |
97aff369 |
1067 | dVAR; |
05619474 |
1068 | dXSARGS; |
93c51217 |
1069 | PERL_UNUSED_ARG(cv); |
05619474 |
1070 | if (SvROK(ST(0))) { |
c4420975 |
1071 | const HV * const hv = (HV *) SvRV(ST(0)); |
05619474 |
1072 | if (items == 1 && SvTYPE(hv) == SVt_PVHV) { |
1073 | if (HvREHASH(hv)) |
1074 | XSRETURN_YES; |
1075 | else |
1076 | XSRETURN_NO; |
1077 | } |
1078 | } |
1079 | Perl_croak(aTHX_ "Internals::HvREHASH $hashref"); |
1080 | } |
241d1a3b |
1081 | |
80305961 |
1082 | XS(XS_re_is_regexp) |
1083 | { |
1084 | dVAR; |
1085 | dXSARGS; |
f7e71195 |
1086 | PERL_UNUSED_VAR(cv); |
1087 | |
80305961 |
1088 | if (items != 1) |
afa74d42 |
1089 | croak_xs_usage(cv, "sv"); |
f7e71195 |
1090 | |
80305961 |
1091 | SP -= items; |
f7e71195 |
1092 | |
1093 | if (SvRXOK(ST(0))) { |
1094 | XSRETURN_YES; |
1095 | } else { |
1096 | XSRETURN_NO; |
80305961 |
1097 | } |
1098 | } |
1099 | |
192b9cd1 |
1100 | XS(XS_re_regnames_count) |
80305961 |
1101 | { |
192b9cd1 |
1102 | REGEXP *rx = PL_curpm ? PM_GETRE(PL_curpm) : NULL; |
1103 | SV * ret; |
80305961 |
1104 | dVAR; |
1105 | dXSARGS; |
192b9cd1 |
1106 | |
1107 | if (items != 0) |
afa74d42 |
1108 | croak_xs_usage(cv, ""); |
192b9cd1 |
1109 | |
1110 | SP -= items; |
1111 | |
1112 | if (!rx) |
1113 | XSRETURN_UNDEF; |
1114 | |
1115 | ret = CALLREG_NAMED_BUFF_COUNT(rx); |
1116 | |
1117 | SPAGAIN; |
1118 | |
1119 | if (ret) { |
ec83ea38 |
1120 | mXPUSHs(ret); |
192b9cd1 |
1121 | PUTBACK; |
1122 | return; |
1123 | } else { |
1124 | XSRETURN_UNDEF; |
1125 | } |
1126 | } |
1127 | |
1128 | XS(XS_re_regname) |
1129 | { |
1130 | dVAR; |
1131 | dXSARGS; |
1132 | REGEXP * rx; |
1133 | U32 flags; |
1134 | SV * ret; |
1135 | |
28d8d7f4 |
1136 | if (items < 1 || items > 2) |
afa74d42 |
1137 | croak_xs_usage(cv, "name[, all ]"); |
192b9cd1 |
1138 | |
80305961 |
1139 | SP -= items; |
80305961 |
1140 | |
192b9cd1 |
1141 | rx = PL_curpm ? PM_GETRE(PL_curpm) : NULL; |
1142 | |
1143 | if (!rx) |
1144 | XSRETURN_UNDEF; |
1145 | |
1146 | if (items == 2 && SvTRUE(ST(1))) { |
f1b875a0 |
1147 | flags = RXapif_ALL; |
192b9cd1 |
1148 | } else { |
f1b875a0 |
1149 | flags = RXapif_ONE; |
80305961 |
1150 | } |
f1b875a0 |
1151 | ret = CALLREG_NAMED_BUFF_FETCH(rx, ST(0), (flags | RXapif_REGNAME)); |
192b9cd1 |
1152 | |
1153 | if (ret) { |
ec83ea38 |
1154 | mXPUSHs(ret); |
192b9cd1 |
1155 | XSRETURN(1); |
1156 | } |
1157 | XSRETURN_UNDEF; |
80305961 |
1158 | } |
1159 | |
192b9cd1 |
1160 | |
80305961 |
1161 | XS(XS_re_regnames) |
1162 | { |
192b9cd1 |
1163 | dVAR; |
80305961 |
1164 | dXSARGS; |
192b9cd1 |
1165 | REGEXP * rx; |
1166 | U32 flags; |
1167 | SV *ret; |
1168 | AV *av; |
1169 | I32 length; |
1170 | I32 i; |
1171 | SV **entry; |
1172 | |
1173 | if (items > 1) |
afa74d42 |
1174 | croak_xs_usage(cv, "[all]"); |
192b9cd1 |
1175 | |
1176 | rx = PL_curpm ? PM_GETRE(PL_curpm) : NULL; |
1177 | |
1178 | if (!rx) |
1179 | XSRETURN_UNDEF; |
1180 | |
1181 | if (items == 1 && SvTRUE(ST(0))) { |
f1b875a0 |
1182 | flags = RXapif_ALL; |
192b9cd1 |
1183 | } else { |
f1b875a0 |
1184 | flags = RXapif_ONE; |
192b9cd1 |
1185 | } |
1186 | |
80305961 |
1187 | SP -= items; |
80305961 |
1188 | |
f1b875a0 |
1189 | ret = CALLREG_NAMED_BUFF_ALL(rx, (flags | RXapif_REGNAMES)); |
192b9cd1 |
1190 | |
1191 | SPAGAIN; |
1192 | |
1193 | SP -= items; |
1194 | |
1195 | if (!ret) |
1196 | XSRETURN_UNDEF; |
1197 | |
1198 | av = (AV*)SvRV(ret); |
1199 | length = av_len(av); |
1200 | |
1201 | for (i = 0; i <= length; i++) { |
1202 | entry = av_fetch(av, i, FALSE); |
1203 | |
1204 | if (!entry) |
1205 | Perl_croak(aTHX_ "NULL array element in re::regnames()"); |
1206 | |
ec83ea38 |
1207 | mXPUSHs(SvREFCNT_inc_simple_NN(*entry)); |
80305961 |
1208 | } |
ec83ea38 |
1209 | |
1210 | SvREFCNT_dec(ret); |
1211 | |
192b9cd1 |
1212 | PUTBACK; |
1213 | return; |
80305961 |
1214 | } |
1215 | |
192c1e27 |
1216 | XS(XS_re_regexp_pattern) |
1217 | { |
1218 | dVAR; |
1219 | dXSARGS; |
1220 | REGEXP *re; |
192c1e27 |
1221 | |
1222 | if (items != 1) |
afa74d42 |
1223 | croak_xs_usage(cv, "sv"); |
192c1e27 |
1224 | |
1225 | SP -= items; |
1226 | |
1227 | /* |
1228 | Checks if a reference is a regex or not. If the parameter is |
1229 | not a ref, or is not the result of a qr// then returns false |
1230 | in scalar context and an empty list in list context. |
1231 | Otherwise in list context it returns the pattern and the |
1232 | modifiers, in scalar context it returns the pattern just as it |
1233 | would if the qr// was stringified normally, regardless as |
1234 | to the class of the variable and any strigification overloads |
1235 | on the object. |
1236 | */ |
1237 | |
1238 | if ((re = SvRX(ST(0)))) /* assign deliberate */ |
1239 | { |
1240 | /* Housten, we have a regex! */ |
1241 | SV *pattern; |
1242 | STRLEN left = 0; |
1243 | char reflags[6]; |
1244 | |
1245 | if ( GIMME_V == G_ARRAY ) { |
1246 | /* |
1247 | we are in list context so stringify |
1248 | the modifiers that apply. We ignore "negative |
1249 | modifiers" in this scenario. |
1250 | */ |
1251 | |
1252 | const char *fptr = INT_PAT_MODS; |
1253 | char ch; |
1254 | U16 match_flags = (U16)((RX_EXTFLAGS(re) & PMf_COMPILETIME) |
1255 | >> RXf_PMf_STD_PMMOD_SHIFT); |
1256 | |
1257 | while((ch = *fptr++)) { |
1258 | if(match_flags & 1) { |
1259 | reflags[left++] = ch; |
1260 | } |
1261 | match_flags >>= 1; |
1262 | } |
1263 | |
fb632ce3 |
1264 | pattern = newSVpvn_flags(RX_PRECOMP(re),RX_PRELEN(re), |
1265 | (RX_UTF8(re) ? SVf_UTF8 : 0) | SVs_TEMP); |
192c1e27 |
1266 | |
1267 | /* return the pattern and the modifiers */ |
1268 | XPUSHs(pattern); |
fb632ce3 |
1269 | XPUSHs(newSVpvn_flags(reflags, left, SVs_TEMP)); |
192c1e27 |
1270 | XSRETURN(2); |
1271 | } else { |
1272 | /* Scalar, so use the string that Perl would return */ |
1273 | /* return the pattern in (?msix:..) format */ |
1274 | #if PERL_VERSION >= 11 |
1275 | pattern = sv_2mortal(newSVsv((SV*)re)); |
1276 | #else |
fb632ce3 |
1277 | pattern = newSVpvn_flags(RX_WRAPPED(re), RX_WRAPLEN(re), |
1278 | (RX_UTF8(re) ? SVf_UTF8 : 0) | SVs_TEMP); |
192c1e27 |
1279 | #endif |
1280 | XPUSHs(pattern); |
1281 | XSRETURN(1); |
1282 | } |
1283 | } else { |
1284 | /* It ain't a regexp folks */ |
1285 | if ( GIMME_V == G_ARRAY ) { |
1286 | /* return the empty list */ |
1287 | XSRETURN_UNDEF; |
1288 | } else { |
1289 | /* Because of the (?:..) wrapping involved in a |
1290 | stringified pattern it is impossible to get a |
1291 | result for a real regexp that would evaluate to |
1292 | false. Therefore we can return PL_sv_no to signify |
1293 | that the object is not a regex, this means that one |
1294 | can say |
1295 | |
1296 | if (regex($might_be_a_regex) eq '(?:foo)') { } |
1297 | |
1298 | and not worry about undefined values. |
1299 | */ |
1300 | XSRETURN_NO; |
1301 | } |
1302 | } |
1303 | /* NOT-REACHED */ |
1304 | } |
1305 | |
192b9cd1 |
1306 | XS(XS_Tie_Hash_NamedCapture_FETCH) |
80305961 |
1307 | { |
192b9cd1 |
1308 | dVAR; |
80305961 |
1309 | dXSARGS; |
192b9cd1 |
1310 | REGEXP * rx; |
1311 | U32 flags; |
1312 | SV * ret; |
1313 | |
1314 | if (items != 2) |
afa74d42 |
1315 | croak_xs_usage(cv, "$key, $flags"); |
192b9cd1 |
1316 | |
1317 | rx = PL_curpm ? PM_GETRE(PL_curpm) : NULL; |
1318 | |
1319 | if (!rx) |
1320 | XSRETURN_UNDEF; |
1321 | |
80305961 |
1322 | SP -= items; |
192b9cd1 |
1323 | |
1324 | flags = (U32)INT2PTR(IV,SvIV(SvRV((SV*)ST(0)))); |
1325 | ret = CALLREG_NAMED_BUFF_FETCH(rx, ST(1), flags); |
1326 | |
1327 | SPAGAIN; |
1328 | |
1329 | if (ret) { |
ec83ea38 |
1330 | mXPUSHs(ret); |
192b9cd1 |
1331 | PUTBACK; |
1332 | return; |
1333 | } |
1334 | XSRETURN_UNDEF; |
1335 | } |
1336 | |
1337 | XS(XS_Tie_Hash_NamedCapture_STORE) |
1338 | { |
1339 | dVAR; |
1340 | dXSARGS; |
1341 | REGEXP * rx; |
1342 | U32 flags; |
1343 | |
1344 | if (items != 3) |
afa74d42 |
1345 | croak_xs_usage(cv, "$key, $value, $flags"); |
192b9cd1 |
1346 | |
1347 | rx = PL_curpm ? PM_GETRE(PL_curpm) : NULL; |
1348 | |
1349 | if (!rx) { |
1350 | if (!PL_localizing) |
1351 | Perl_croak(aTHX_ PL_no_modify); |
1352 | else |
28d8d7f4 |
1353 | XSRETURN_UNDEF; |
80305961 |
1354 | } |
192b9cd1 |
1355 | |
1356 | SP -= items; |
1357 | |
1358 | flags = (U32)INT2PTR(IV,SvIV(SvRV((SV*)ST(0)))); |
1359 | CALLREG_NAMED_BUFF_STORE(rx,ST(1), ST(2), flags); |
80305961 |
1360 | } |
1361 | |
192b9cd1 |
1362 | XS(XS_Tie_Hash_NamedCapture_DELETE) |
1363 | { |
1364 | dVAR; |
1365 | dXSARGS; |
1366 | REGEXP * rx = PL_curpm ? PM_GETRE(PL_curpm) : NULL; |
1367 | U32 flags; |
80305961 |
1368 | |
192b9cd1 |
1369 | if (items != 2) |
afa74d42 |
1370 | croak_xs_usage(cv, "$key, $flags"); |
192b9cd1 |
1371 | |
1372 | if (!rx) |
1373 | Perl_croak(aTHX_ PL_no_modify); |
1374 | |
1375 | SP -= items; |
1376 | |
1377 | flags = (U32)INT2PTR(IV,SvIV(SvRV((SV*)ST(0)))); |
1378 | CALLREG_NAMED_BUFF_DELETE(rx, ST(1), flags); |
1379 | } |
1380 | |
1381 | XS(XS_Tie_Hash_NamedCapture_CLEAR) |
80305961 |
1382 | { |
192b9cd1 |
1383 | dVAR; |
80305961 |
1384 | dXSARGS; |
192b9cd1 |
1385 | REGEXP * rx; |
1386 | U32 flags; |
1387 | |
1388 | if (items != 1) |
afa74d42 |
1389 | croak_xs_usage(cv, "$flags"); |
192b9cd1 |
1390 | |
1391 | rx = PL_curpm ? PM_GETRE(PL_curpm) : NULL; |
1392 | |
1393 | if (!rx) |
1394 | Perl_croak(aTHX_ PL_no_modify); |
1395 | |
80305961 |
1396 | SP -= items; |
80305961 |
1397 | |
192b9cd1 |
1398 | flags = (U32)INT2PTR(IV,SvIV(SvRV((SV*)ST(0)))); |
1399 | CALLREG_NAMED_BUFF_CLEAR(rx, flags); |
1400 | } |
1401 | |
1402 | XS(XS_Tie_Hash_NamedCapture_EXISTS) |
1403 | { |
1404 | dVAR; |
1405 | dXSARGS; |
1406 | REGEXP * rx; |
1407 | U32 flags; |
1408 | SV * ret; |
1409 | |
1410 | if (items != 2) |
afa74d42 |
1411 | croak_xs_usage(cv, "$key, $flags"); |
192b9cd1 |
1412 | |
1413 | rx = PL_curpm ? PM_GETRE(PL_curpm) : NULL; |
1414 | |
1415 | if (!rx) |
28d8d7f4 |
1416 | XSRETURN_UNDEF; |
192b9cd1 |
1417 | |
1418 | SP -= items; |
1419 | |
1420 | flags = (U32)INT2PTR(IV,SvIV(SvRV((SV*)ST(0)))); |
1421 | ret = CALLREG_NAMED_BUFF_EXISTS(rx, ST(1), flags); |
1422 | |
1423 | SPAGAIN; |
1424 | |
1425 | XPUSHs(ret); |
80305961 |
1426 | PUTBACK; |
1427 | return; |
80305961 |
1428 | } |
1429 | |
86aa3d53 |
1430 | XS(XS_Tie_Hash_NamedCapture_FIRSTK) |
192b9cd1 |
1431 | { |
1432 | dVAR; |
1433 | dXSARGS; |
1434 | REGEXP * rx; |
1435 | U32 flags; |
1436 | SV * ret; |
80305961 |
1437 | |
192b9cd1 |
1438 | if (items != 1) |
afa74d42 |
1439 | croak_xs_usage(cv, ""); |
192b9cd1 |
1440 | |
1441 | rx = PL_curpm ? PM_GETRE(PL_curpm) : NULL; |
1442 | |
1443 | if (!rx) |
1444 | XSRETURN_UNDEF; |
1445 | |
1446 | SP -= items; |
1447 | |
1448 | flags = (U32)INT2PTR(IV,SvIV(SvRV((SV*)ST(0)))); |
1449 | ret = CALLREG_NAMED_BUFF_FIRSTKEY(rx, flags); |
1450 | |
1451 | SPAGAIN; |
1452 | |
1453 | if (ret) { |
ec83ea38 |
1454 | mXPUSHs(ret); |
192b9cd1 |
1455 | PUTBACK; |
1456 | } else { |
1457 | XSRETURN_UNDEF; |
1458 | } |
1459 | |
1460 | } |
1461 | |
86aa3d53 |
1462 | XS(XS_Tie_Hash_NamedCapture_NEXTK) |
80305961 |
1463 | { |
192b9cd1 |
1464 | dVAR; |
80305961 |
1465 | dXSARGS; |
192b9cd1 |
1466 | REGEXP * rx; |
1467 | U32 flags; |
1468 | SV * ret; |
1469 | |
1470 | if (items != 2) |
afa74d42 |
1471 | croak_xs_usage(cv, "$lastkey"); |
192b9cd1 |
1472 | |
1473 | rx = PL_curpm ? PM_GETRE(PL_curpm) : NULL; |
1474 | |
1475 | if (!rx) |
1476 | XSRETURN_UNDEF; |
80305961 |
1477 | |
80305961 |
1478 | SP -= items; |
192b9cd1 |
1479 | |
1480 | flags = (U32)INT2PTR(IV,SvIV(SvRV((SV*)ST(0)))); |
1481 | ret = CALLREG_NAMED_BUFF_NEXTKEY(rx, ST(1), flags); |
1482 | |
1483 | SPAGAIN; |
1484 | |
1485 | if (ret) { |
ec83ea38 |
1486 | mXPUSHs(ret); |
80305961 |
1487 | } else { |
1488 | XSRETURN_UNDEF; |
1489 | } |
1490 | PUTBACK; |
192b9cd1 |
1491 | } |
1492 | |
1493 | XS(XS_Tie_Hash_NamedCapture_SCALAR) |
1494 | { |
1495 | dVAR; |
1496 | dXSARGS; |
1497 | REGEXP * rx; |
1498 | U32 flags; |
1499 | SV * ret; |
1500 | |
1501 | if (items != 1) |
afa74d42 |
1502 | croak_xs_usage(cv, ""); |
192b9cd1 |
1503 | |
1504 | rx = PL_curpm ? PM_GETRE(PL_curpm) : NULL; |
1505 | |
1506 | if (!rx) |
1507 | XSRETURN_UNDEF; |
1508 | |
1509 | SP -= items; |
1510 | |
1511 | flags = (U32)INT2PTR(IV,SvIV(SvRV((SV*)ST(0)))); |
1512 | ret = CALLREG_NAMED_BUFF_SCALAR(rx, flags); |
1513 | |
1514 | SPAGAIN; |
1515 | |
1516 | if (ret) { |
ec83ea38 |
1517 | mXPUSHs(ret); |
192b9cd1 |
1518 | PUTBACK; |
1519 | return; |
1520 | } else { |
1521 | XSRETURN_UNDEF; |
1522 | } |
1523 | } |
1524 | |
1525 | XS(XS_Tie_Hash_NamedCapture_flags) |
1526 | { |
1527 | dVAR; |
1528 | dXSARGS; |
1529 | |
1530 | if (items != 0) |
afa74d42 |
1531 | croak_xs_usage(cv, ""); |
192b9cd1 |
1532 | |
6e449a3a |
1533 | mXPUSHu(RXapif_ONE); |
1534 | mXPUSHu(RXapif_ALL); |
192b9cd1 |
1535 | PUTBACK; |
1536 | return; |
80305961 |
1537 | } |
1538 | |
1539 | |
241d1a3b |
1540 | /* |
1541 | * Local variables: |
1542 | * c-indentation-style: bsd |
1543 | * c-basic-offset: 4 |
1544 | * indent-tabs-mode: t |
1545 | * End: |
1546 | * |
37442d52 |
1547 | * ex: set ts=8 sts=4 sw=4 noet: |
1548 | */ |