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) { |
b0c482e3 |
70 | if (ckWARN(WARN_SYNTAX)) |
e1a479c5 |
71 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), |
72 | "Can't locate package %"SVf" for the parents of %s", |
73 | SVfARG(basename_sv), hvname); |
74 | continue; |
46e4b22b |
75 | } |
e1a479c5 |
76 | if(name_stash == basestash || strEQ(name, SvPVX(basename_sv))) |
77 | return TRUE; |
6d4a7be2 |
78 | } |
79 | |
a9ec700e |
80 | return FALSE; |
6d4a7be2 |
81 | } |
82 | |
954c1994 |
83 | /* |
ccfc67b7 |
84 | =head1 SV Manipulation Functions |
85 | |
954c1994 |
86 | =for apidoc sv_derived_from |
87 | |
6885da0e |
88 | Returns a boolean indicating whether the SV is derived from the specified class |
89 | I<at the C level>. To check derivation at the Perl level, call C<isa()> as a |
90 | normal Perl method. |
954c1994 |
91 | |
92 | =cut |
93 | */ |
94 | |
55497cff |
95 | bool |
15f169a1 |
96 | Perl_sv_derived_from(pTHX_ SV *sv, const char *const name) |
55497cff |
97 | { |
97aff369 |
98 | dVAR; |
0b6f4f5c |
99 | HV *stash; |
46e4b22b |
100 | |
7918f24d |
101 | PERL_ARGS_ASSERT_SV_DERIVED_FROM; |
102 | |
5b295bef |
103 | SvGETMAGIC(sv); |
55497cff |
104 | |
105 | if (SvROK(sv)) { |
0b6f4f5c |
106 | const char *type; |
55497cff |
107 | sv = SvRV(sv); |
108 | type = sv_reftype(sv,0); |
0b6f4f5c |
109 | if (type && strEQ(type,name)) |
110 | return TRUE; |
111 | stash = SvOBJECT(sv) ? SvSTASH(sv) : NULL; |
55497cff |
112 | } |
113 | else { |
da51bb9b |
114 | stash = gv_stashsv(sv, 0); |
55497cff |
115 | } |
46e4b22b |
116 | |
0b6f4f5c |
117 | if (stash) { |
da51bb9b |
118 | HV * const name_stash = gv_stashpv(name, 0); |
810e6113 |
119 | return isa_lookup(stash, name, name_stash); |
0b6f4f5c |
120 | } |
121 | else |
122 | return FALSE; |
301daebc |
123 | |
55497cff |
124 | } |
125 | |
cbc021f9 |
126 | /* |
127 | =for apidoc sv_does |
128 | |
129 | Returns a boolean indicating whether the SV performs a specific, named role. |
130 | The SV can be a Perl object or the name of a Perl class. |
131 | |
132 | =cut |
133 | */ |
134 | |
1b026014 |
135 | #include "XSUB.h" |
136 | |
cbc021f9 |
137 | bool |
15f169a1 |
138 | Perl_sv_does(pTHX_ SV *sv, const char *const name) |
cbc021f9 |
139 | { |
140 | const char *classname; |
141 | bool does_it; |
59e7186f |
142 | SV *methodname; |
cbc021f9 |
143 | dSP; |
7918f24d |
144 | |
145 | PERL_ARGS_ASSERT_SV_DOES; |
146 | |
cbc021f9 |
147 | ENTER; |
148 | SAVETMPS; |
149 | |
150 | SvGETMAGIC(sv); |
151 | |
152 | if (!SvOK(sv) || !(SvROK(sv) || (SvPOK(sv) && SvCUR(sv)) |
153 | || (SvGMAGICAL(sv) && SvPOKp(sv) && SvCUR(sv)))) |
154 | return FALSE; |
155 | |
156 | if (sv_isobject(sv)) { |
157 | classname = sv_reftype(SvRV(sv),TRUE); |
158 | } else { |
94707740 |
159 | classname = SvPV_nolen(sv); |
cbc021f9 |
160 | } |
161 | |
162 | if (strEQ(name,classname)) |
163 | return TRUE; |
164 | |
165 | PUSHMARK(SP); |
166 | XPUSHs(sv); |
6e449a3a |
167 | mXPUSHs(newSVpv(name, 0)); |
cbc021f9 |
168 | PUTBACK; |
169 | |
84bafc02 |
170 | methodname = newSVpvs_flags("isa", SVs_TEMP); |
59e7186f |
171 | /* ugly hack: use the SvSCREAM flag so S_method_common |
172 | * can figure out we're calling DOES() and not isa(), |
173 | * and report eventual errors correctly. --rgs */ |
174 | SvSCREAM_on(methodname); |
175 | call_sv(methodname, G_SCALAR | G_METHOD); |
cbc021f9 |
176 | SPAGAIN; |
177 | |
178 | does_it = SvTRUE( TOPs ); |
179 | FREETMPS; |
180 | LEAVE; |
181 | |
182 | return does_it; |
183 | } |
184 | |
27da23d5 |
185 | PERL_XS_EXPORT_C void XS_UNIVERSAL_isa(pTHX_ CV *cv); |
186 | PERL_XS_EXPORT_C void XS_UNIVERSAL_can(pTHX_ CV *cv); |
cbc021f9 |
187 | PERL_XS_EXPORT_C void XS_UNIVERSAL_DOES(pTHX_ CV *cv); |
27da23d5 |
188 | PERL_XS_EXPORT_C void XS_UNIVERSAL_VERSION(pTHX_ CV *cv); |
439cb1c4 |
189 | XS(XS_version_new); |
190 | XS(XS_version_stringify); |
191 | XS(XS_version_numify); |
9137345a |
192 | XS(XS_version_normal); |
439cb1c4 |
193 | XS(XS_version_vcmp); |
194 | XS(XS_version_boolean); |
2dfd8427 |
195 | #ifdef HASATTRIBUTE_NORETURN |
196 | XS(XS_version_noop) __attribute__noreturn__; |
197 | #else |
439cb1c4 |
198 | XS(XS_version_noop); |
2dfd8427 |
199 | #endif |
c8d69e4a |
200 | XS(XS_version_is_alpha); |
137d6fc0 |
201 | XS(XS_version_qv); |
8800c35a |
202 | XS(XS_utf8_is_utf8); |
1b026014 |
203 | XS(XS_utf8_valid); |
204 | XS(XS_utf8_encode); |
205 | XS(XS_utf8_decode); |
206 | XS(XS_utf8_upgrade); |
207 | XS(XS_utf8_downgrade); |
208 | XS(XS_utf8_unicode_to_native); |
209 | XS(XS_utf8_native_to_unicode); |
29569577 |
210 | XS(XS_Internals_SvREADONLY); |
211 | XS(XS_Internals_SvREFCNT); |
f044d0d1 |
212 | XS(XS_Internals_hv_clear_placehold); |
39f7a870 |
213 | XS(XS_PerlIO_get_layers); |
f63535fc |
214 | XS(XS_Regexp_DESTROY); |
9a7034eb |
215 | XS(XS_Internals_hash_seed); |
008fb0c0 |
216 | XS(XS_Internals_rehash_seed); |
05619474 |
217 | XS(XS_Internals_HvREHASH); |
e1234d8e |
218 | XS(XS_Internals_inc_sub_generation); |
80305961 |
219 | XS(XS_re_is_regexp); |
192b9cd1 |
220 | XS(XS_re_regname); |
221 | XS(XS_re_regnames); |
80305961 |
222 | XS(XS_re_regnames_count); |
192c1e27 |
223 | XS(XS_re_regexp_pattern); |
192b9cd1 |
224 | XS(XS_Tie_Hash_NamedCapture_FETCH); |
225 | XS(XS_Tie_Hash_NamedCapture_STORE); |
226 | XS(XS_Tie_Hash_NamedCapture_DELETE); |
227 | XS(XS_Tie_Hash_NamedCapture_CLEAR); |
228 | XS(XS_Tie_Hash_NamedCapture_EXISTS); |
86aa3d53 |
229 | XS(XS_Tie_Hash_NamedCapture_FIRSTK); |
230 | XS(XS_Tie_Hash_NamedCapture_NEXTK); |
192b9cd1 |
231 | XS(XS_Tie_Hash_NamedCapture_SCALAR); |
232 | XS(XS_Tie_Hash_NamedCapture_flags); |
0cb96387 |
233 | |
234 | void |
235 | Perl_boot_core_UNIVERSAL(pTHX) |
236 | { |
97aff369 |
237 | dVAR; |
157e3fc8 |
238 | static const char file[] = __FILE__; |
0cb96387 |
239 | |
240 | newXS("UNIVERSAL::isa", XS_UNIVERSAL_isa, file); |
241 | newXS("UNIVERSAL::can", XS_UNIVERSAL_can, file); |
cbc021f9 |
242 | newXS("UNIVERSAL::DOES", XS_UNIVERSAL_DOES, file); |
0cb96387 |
243 | newXS("UNIVERSAL::VERSION", XS_UNIVERSAL_VERSION, file); |
439cb1c4 |
244 | { |
ad63d80f |
245 | /* register the overloading (type 'A') magic */ |
246 | PL_amagic_generation++; |
439cb1c4 |
247 | /* Make it findable via fetchmethod */ |
be2ebcad |
248 | newXS("version::()", XS_version_noop, file); |
439cb1c4 |
249 | newXS("version::new", XS_version_new, file); |
250 | newXS("version::(\"\"", XS_version_stringify, file); |
251 | newXS("version::stringify", XS_version_stringify, file); |
252 | newXS("version::(0+", XS_version_numify, file); |
253 | newXS("version::numify", XS_version_numify, file); |
9137345a |
254 | newXS("version::normal", XS_version_normal, file); |
439cb1c4 |
255 | newXS("version::(cmp", XS_version_vcmp, file); |
256 | newXS("version::(<=>", XS_version_vcmp, file); |
257 | newXS("version::vcmp", XS_version_vcmp, file); |
258 | newXS("version::(bool", XS_version_boolean, file); |
259 | newXS("version::boolean", XS_version_boolean, file); |
260 | newXS("version::(nomethod", XS_version_noop, file); |
261 | newXS("version::noop", XS_version_noop, file); |
c8d69e4a |
262 | newXS("version::is_alpha", XS_version_is_alpha, file); |
137d6fc0 |
263 | newXS("version::qv", XS_version_qv, file); |
439cb1c4 |
264 | } |
8800c35a |
265 | newXS("utf8::is_utf8", XS_utf8_is_utf8, file); |
1b026014 |
266 | newXS("utf8::valid", XS_utf8_valid, file); |
267 | newXS("utf8::encode", XS_utf8_encode, file); |
268 | newXS("utf8::decode", XS_utf8_decode, file); |
269 | newXS("utf8::upgrade", XS_utf8_upgrade, file); |
270 | newXS("utf8::downgrade", XS_utf8_downgrade, file); |
271 | newXS("utf8::native_to_unicode", XS_utf8_native_to_unicode, file); |
272 | newXS("utf8::unicode_to_native", XS_utf8_unicode_to_native, file); |
29569577 |
273 | newXSproto("Internals::SvREADONLY",XS_Internals_SvREADONLY, file, "\\[$%@];$"); |
274 | newXSproto("Internals::SvREFCNT",XS_Internals_SvREFCNT, file, "\\[$%@];$"); |
dfd4ef2f |
275 | newXSproto("Internals::hv_clear_placeholders", |
f044d0d1 |
276 | XS_Internals_hv_clear_placehold, file, "\\%"); |
9d569fce |
277 | newXSproto("PerlIO::get_layers", |
278 | XS_PerlIO_get_layers, file, "*;@"); |
f63535fc |
279 | newXS("Regexp::DESTROY", XS_Regexp_DESTROY, file); |
9a7034eb |
280 | newXSproto("Internals::hash_seed",XS_Internals_hash_seed, file, ""); |
008fb0c0 |
281 | newXSproto("Internals::rehash_seed",XS_Internals_rehash_seed, file, ""); |
05619474 |
282 | newXSproto("Internals::HvREHASH", XS_Internals_HvREHASH, file, "\\%"); |
80305961 |
283 | newXSproto("re::is_regexp", XS_re_is_regexp, file, "$"); |
28d8d7f4 |
284 | newXSproto("re::regname", XS_re_regname, file, ";$$"); |
285 | newXSproto("re::regnames", XS_re_regnames, file, ";$"); |
28d8d7f4 |
286 | newXSproto("re::regnames_count", XS_re_regnames_count, file, ""); |
192c1e27 |
287 | newXSproto("re::regexp_pattern", XS_re_regexp_pattern, file, "$"); |
192b9cd1 |
288 | newXS("Tie::Hash::NamedCapture::FETCH", XS_Tie_Hash_NamedCapture_FETCH, file); |
289 | newXS("Tie::Hash::NamedCapture::STORE", XS_Tie_Hash_NamedCapture_STORE, file); |
290 | newXS("Tie::Hash::NamedCapture::DELETE", XS_Tie_Hash_NamedCapture_DELETE, file); |
291 | newXS("Tie::Hash::NamedCapture::CLEAR", XS_Tie_Hash_NamedCapture_CLEAR, file); |
292 | newXS("Tie::Hash::NamedCapture::EXISTS", XS_Tie_Hash_NamedCapture_EXISTS, file); |
86aa3d53 |
293 | newXS("Tie::Hash::NamedCapture::FIRSTKEY", XS_Tie_Hash_NamedCapture_FIRSTK, file); |
294 | newXS("Tie::Hash::NamedCapture::NEXTKEY", XS_Tie_Hash_NamedCapture_NEXTK, file); |
192b9cd1 |
295 | newXS("Tie::Hash::NamedCapture::SCALAR", XS_Tie_Hash_NamedCapture_SCALAR, file); |
296 | newXS("Tie::Hash::NamedCapture::flags", XS_Tie_Hash_NamedCapture_flags, file); |
0cb96387 |
297 | } |
298 | |
afa74d42 |
299 | /* |
300 | =for apidoc croak_xs_usage |
301 | |
302 | A specialised variant of C<croak()> for emitting the usage message for xsubs |
303 | |
304 | croak_xs_usage(cv, "eee_yow"); |
305 | |
306 | works out the package name and subroutine name from C<cv>, and then calls |
307 | C<croak()>. Hence if C<cv> is C<&ouch::awk>, it would call C<croak> as: |
308 | |
309 | Perl_croak(aTHX_ "Usage %s::%s(%s)", "ouch" "awk", "eee_yow"); |
310 | |
311 | =cut |
312 | */ |
313 | |
314 | void |
315 | Perl_croak_xs_usage(pTHX_ const CV *const cv, const char *const params) |
316 | { |
317 | const GV *const gv = CvGV(cv); |
318 | |
319 | PERL_ARGS_ASSERT_CROAK_XS_USAGE; |
320 | |
321 | if (gv) { |
322 | const char *const gvname = GvNAME(gv); |
323 | const HV *const stash = GvSTASH(gv); |
324 | const char *const hvname = stash ? HvNAME_get(stash) : NULL; |
325 | |
326 | if (hvname) |
327 | Perl_croak(aTHX_ "Usage: %s::%s(%s)", hvname, gvname, params); |
328 | else |
329 | Perl_croak(aTHX_ "Usage: %s(%s)", gvname, params); |
330 | } else { |
331 | /* Pants. I don't think that it should be possible to get here. */ |
93c51217 |
332 | Perl_croak(aTHX_ "Usage: CODE(0x%"UVxf")(%s)", PTR2UV(cv), params); |
afa74d42 |
333 | } |
334 | } |
55497cff |
335 | |
6d4a7be2 |
336 | XS(XS_UNIVERSAL_isa) |
337 | { |
97aff369 |
338 | dVAR; |
6d4a7be2 |
339 | dXSARGS; |
6d4a7be2 |
340 | |
341 | if (items != 2) |
afa74d42 |
342 | croak_xs_usage(cv, "reference, kind"); |
c4420975 |
343 | else { |
344 | SV * const sv = ST(0); |
345 | const char *name; |
6d4a7be2 |
346 | |
c4420975 |
347 | SvGETMAGIC(sv); |
d3f7f2b2 |
348 | |
c4420975 |
349 | if (!SvOK(sv) || !(SvROK(sv) || (SvPOK(sv) && SvCUR(sv)) |
350 | || (SvGMAGICAL(sv) && SvPOKp(sv) && SvCUR(sv)))) |
351 | XSRETURN_UNDEF; |
f8f70380 |
352 | |
c4420975 |
353 | name = SvPV_nolen_const(ST(1)); |
6d4a7be2 |
354 | |
c4420975 |
355 | ST(0) = boolSV(sv_derived_from(sv, name)); |
356 | XSRETURN(1); |
357 | } |
6d4a7be2 |
358 | } |
359 | |
6d4a7be2 |
360 | XS(XS_UNIVERSAL_can) |
361 | { |
97aff369 |
362 | dVAR; |
6d4a7be2 |
363 | dXSARGS; |
364 | SV *sv; |
6867be6d |
365 | const char *name; |
6d4a7be2 |
366 | SV *rv; |
6f08146e |
367 | HV *pkg = NULL; |
6d4a7be2 |
368 | |
369 | if (items != 2) |
afa74d42 |
370 | croak_xs_usage(cv, "object-ref, method"); |
6d4a7be2 |
371 | |
372 | sv = ST(0); |
f8f70380 |
373 | |
5b295bef |
374 | SvGETMAGIC(sv); |
d3f7f2b2 |
375 | |
253ecd6d |
376 | if (!SvOK(sv) || !(SvROK(sv) || (SvPOK(sv) && SvCUR(sv)) |
377 | || (SvGMAGICAL(sv) && SvPOKp(sv) && SvCUR(sv)))) |
f8f70380 |
378 | XSRETURN_UNDEF; |
379 | |
0510663f |
380 | name = SvPV_nolen_const(ST(1)); |
3280af22 |
381 | rv = &PL_sv_undef; |
6d4a7be2 |
382 | |
46e4b22b |
383 | if (SvROK(sv)) { |
6f08146e |
384 | sv = (SV*)SvRV(sv); |
46e4b22b |
385 | if (SvOBJECT(sv)) |
6f08146e |
386 | pkg = SvSTASH(sv); |
387 | } |
388 | else { |
da51bb9b |
389 | pkg = gv_stashsv(sv, 0); |
6f08146e |
390 | } |
391 | |
392 | if (pkg) { |
c4420975 |
393 | GV * const gv = gv_fetchmethod_autoload(pkg, name, FALSE); |
dc848c6f |
394 | if (gv && isGV(gv)) |
395 | rv = sv_2mortal(newRV((SV*)GvCV(gv))); |
6d4a7be2 |
396 | } |
397 | |
398 | ST(0) = rv; |
399 | XSRETURN(1); |
400 | } |
401 | |
cbc021f9 |
402 | XS(XS_UNIVERSAL_DOES) |
403 | { |
404 | dVAR; |
405 | dXSARGS; |
58c0efa5 |
406 | PERL_UNUSED_ARG(cv); |
cbc021f9 |
407 | |
408 | if (items != 2) |
26be3db7 |
409 | Perl_croak(aTHX_ "Usage: invocant->DOES(kind)"); |
cbc021f9 |
410 | else { |
411 | SV * const sv = ST(0); |
412 | const char *name; |
413 | |
414 | name = SvPV_nolen_const(ST(1)); |
415 | if (sv_does( sv, name )) |
416 | XSRETURN_YES; |
417 | |
418 | XSRETURN_NO; |
419 | } |
420 | } |
421 | |
6d4a7be2 |
422 | XS(XS_UNIVERSAL_VERSION) |
423 | { |
97aff369 |
424 | dVAR; |
6d4a7be2 |
425 | dXSARGS; |
426 | HV *pkg; |
427 | GV **gvp; |
428 | GV *gv; |
429 | SV *sv; |
e1ec3a88 |
430 | const char *undef; |
58c0efa5 |
431 | PERL_UNUSED_ARG(cv); |
6d4a7be2 |
432 | |
1571675a |
433 | if (SvROK(ST(0))) { |
6d4a7be2 |
434 | sv = (SV*)SvRV(ST(0)); |
1571675a |
435 | if (!SvOBJECT(sv)) |
cea2e8a9 |
436 | Perl_croak(aTHX_ "Cannot find version of an unblessed reference"); |
6d4a7be2 |
437 | pkg = SvSTASH(sv); |
438 | } |
439 | else { |
da51bb9b |
440 | pkg = gv_stashsv(ST(0), 0); |
6d4a7be2 |
441 | } |
442 | |
4608196e |
443 | gvp = pkg ? (GV**)hv_fetchs(pkg, "VERSION", FALSE) : NULL; |
6d4a7be2 |
444 | |
0008872a |
445 | if (gvp && isGV(gv = *gvp) && (sv = GvSV(gv)) && SvOK(sv)) { |
c4420975 |
446 | SV * const nsv = sv_newmortal(); |
6d4a7be2 |
447 | sv_setsv(nsv, sv); |
448 | sv = nsv; |
137d6fc0 |
449 | if ( !sv_derived_from(sv, "version")) |
ac0e6a2f |
450 | upg_version(sv, FALSE); |
c445ea15 |
451 | undef = NULL; |
6d4a7be2 |
452 | } |
453 | else { |
3280af22 |
454 | sv = (SV*)&PL_sv_undef; |
6d4a7be2 |
455 | undef = "(undef)"; |
456 | } |
457 | |
1571675a |
458 | if (items > 1) { |
1571675a |
459 | SV *req = ST(1); |
460 | |
62658f4d |
461 | if (undef) { |
bfcb3514 |
462 | if (pkg) { |
c4420975 |
463 | const char * const name = HvNAME_get(pkg); |
a3b680e6 |
464 | Perl_croak(aTHX_ |
bfcb3514 |
465 | "%s does not define $%s::VERSION--version check failed", |
466 | name, name); |
467 | } else { |
a3b680e6 |
468 | Perl_croak(aTHX_ |
469 | "%s defines neither package nor VERSION--version check failed", |
0510663f |
470 | SvPVx_nolen_const(ST(0)) ); |
62658f4d |
471 | } |
472 | } |
ad63d80f |
473 | |
137d6fc0 |
474 | if ( !sv_derived_from(req, "version")) { |
475 | /* req may very well be R/O, so create a new object */ |
ac0e6a2f |
476 | req = sv_2mortal( new_version(req) ); |
137d6fc0 |
477 | } |
1571675a |
478 | |
ac0e6a2f |
479 | if ( vcmp( req, sv ) > 0 ) { |
480 | if ( hv_exists((HV*)SvRV(req), "qv", 2 ) ) { |
481 | Perl_croak(aTHX_ "%s version %"SVf" required--" |
482 | "this is only version %"SVf"", HvNAME_get(pkg), |
be2597df |
483 | SVfARG(vnormal(req)), |
be2597df |
484 | SVfARG(vnormal(sv))); |
ac0e6a2f |
485 | } else { |
486 | Perl_croak(aTHX_ "%s version %"SVf" required--" |
487 | "this is only version %"SVf"", HvNAME_get(pkg), |
8cb289bd |
488 | SVfARG(vstringify(req)), |
489 | SVfARG(vstringify(sv))); |
ac0e6a2f |
490 | } |
491 | } |
492 | |
2d8e6c8d |
493 | } |
6d4a7be2 |
494 | |
2b140d5b |
495 | if ( SvOK(sv) && sv_derived_from(sv, "version") ) { |
8cb289bd |
496 | ST(0) = vstringify(sv); |
13f8f398 |
497 | } else { |
498 | ST(0) = sv; |
b38a9dc5 |
499 | } |
6d4a7be2 |
500 | |
501 | XSRETURN(1); |
502 | } |
503 | |
439cb1c4 |
504 | XS(XS_version_new) |
505 | { |
97aff369 |
506 | dVAR; |
439cb1c4 |
507 | dXSARGS; |
129318bd |
508 | if (items > 3) |
afa74d42 |
509 | croak_xs_usage(cv, "class, version"); |
439cb1c4 |
510 | SP -= items; |
511 | { |
137d6fc0 |
512 | SV *vs = ST(1); |
513 | SV *rv; |
c4420975 |
514 | const char * const classname = |
515 | sv_isobject(ST(0)) /* get the class if called as an object method */ |
516 | ? HvNAME(SvSTASH(SvRV(ST(0)))) |
517 | : (char *)SvPV_nolen(ST(0)); |
9137345a |
518 | |
92dcf8ce |
519 | if ( items == 1 || vs == &PL_sv_undef ) { /* no param or explicit undef */ |
520 | /* create empty object */ |
521 | vs = sv_newmortal(); |
522 | sv_setpvn(vs,"",0); |
9137345a |
523 | } |
524 | else if ( items == 3 ) { |
525 | vs = sv_newmortal(); |
cfd0369c |
526 | Perl_sv_setpvf(aTHX_ vs,"v%s",SvPV_nolen_const(ST(2))); |
129318bd |
527 | } |
439cb1c4 |
528 | |
137d6fc0 |
529 | rv = new_version(vs); |
0723351e |
530 | if ( strcmp(classname,"version") != 0 ) /* inherited new() */ |
da51bb9b |
531 | sv_bless(rv, gv_stashpv(classname, GV_ADD)); |
137d6fc0 |
532 | |
6e449a3a |
533 | mPUSHs(rv); |
439cb1c4 |
534 | PUTBACK; |
535 | return; |
536 | } |
537 | } |
538 | |
539 | XS(XS_version_stringify) |
540 | { |
97aff369 |
541 | dVAR; |
41be1fbd |
542 | dXSARGS; |
543 | if (items < 1) |
afa74d42 |
544 | croak_xs_usage(cv, "lobj, ..."); |
41be1fbd |
545 | SP -= items; |
546 | { |
7452cf6a |
547 | SV * lobj; |
41be1fbd |
548 | |
549 | if (sv_derived_from(ST(0), "version")) { |
9137345a |
550 | lobj = SvRV(ST(0)); |
41be1fbd |
551 | } |
552 | else |
553 | Perl_croak(aTHX_ "lobj is not of type version"); |
554 | |
6e449a3a |
555 | mPUSHs(vstringify(lobj)); |
41be1fbd |
556 | |
557 | PUTBACK; |
558 | return; |
559 | } |
439cb1c4 |
560 | } |
561 | |
562 | XS(XS_version_numify) |
563 | { |
97aff369 |
564 | dVAR; |
41be1fbd |
565 | dXSARGS; |
566 | if (items < 1) |
afa74d42 |
567 | croak_xs_usage(cv, "lobj, ..."); |
41be1fbd |
568 | SP -= items; |
569 | { |
7452cf6a |
570 | SV * lobj; |
41be1fbd |
571 | |
572 | if (sv_derived_from(ST(0), "version")) { |
9137345a |
573 | lobj = SvRV(ST(0)); |
41be1fbd |
574 | } |
575 | else |
576 | Perl_croak(aTHX_ "lobj is not of type version"); |
577 | |
6e449a3a |
578 | mPUSHs(vnumify(lobj)); |
41be1fbd |
579 | |
580 | PUTBACK; |
581 | return; |
582 | } |
439cb1c4 |
583 | } |
584 | |
9137345a |
585 | XS(XS_version_normal) |
586 | { |
97aff369 |
587 | dVAR; |
9137345a |
588 | dXSARGS; |
589 | if (items < 1) |
afa74d42 |
590 | croak_xs_usage(cv, "lobj, ..."); |
9137345a |
591 | SP -= items; |
592 | { |
7452cf6a |
593 | SV * lobj; |
9137345a |
594 | |
595 | if (sv_derived_from(ST(0), "version")) { |
596 | lobj = SvRV(ST(0)); |
597 | } |
598 | else |
599 | Perl_croak(aTHX_ "lobj is not of type version"); |
600 | |
6e449a3a |
601 | mPUSHs(vnormal(lobj)); |
9137345a |
602 | |
603 | PUTBACK; |
604 | return; |
605 | } |
606 | } |
607 | |
439cb1c4 |
608 | XS(XS_version_vcmp) |
609 | { |
97aff369 |
610 | dVAR; |
41be1fbd |
611 | dXSARGS; |
612 | if (items < 1) |
afa74d42 |
613 | croak_xs_usage(cv, "lobj, ..."); |
41be1fbd |
614 | SP -= items; |
615 | { |
7452cf6a |
616 | SV * lobj; |
41be1fbd |
617 | |
618 | if (sv_derived_from(ST(0), "version")) { |
9137345a |
619 | lobj = SvRV(ST(0)); |
41be1fbd |
620 | } |
621 | else |
622 | Perl_croak(aTHX_ "lobj is not of type version"); |
623 | |
624 | { |
625 | SV *rs; |
626 | SV *rvs; |
627 | SV * robj = ST(1); |
7452cf6a |
628 | const IV swap = (IV)SvIV(ST(2)); |
41be1fbd |
629 | |
630 | if ( ! sv_derived_from(robj, "version") ) |
631 | { |
632 | robj = new_version(robj); |
633 | } |
634 | rvs = SvRV(robj); |
635 | |
636 | if ( swap ) |
637 | { |
638 | rs = newSViv(vcmp(rvs,lobj)); |
639 | } |
640 | else |
641 | { |
642 | rs = newSViv(vcmp(lobj,rvs)); |
643 | } |
644 | |
6e449a3a |
645 | mPUSHs(rs); |
41be1fbd |
646 | } |
647 | |
648 | PUTBACK; |
649 | return; |
650 | } |
439cb1c4 |
651 | } |
652 | |
653 | XS(XS_version_boolean) |
654 | { |
97aff369 |
655 | dVAR; |
656 | dXSARGS; |
657 | if (items < 1) |
afa74d42 |
658 | croak_xs_usage(cv, "lobj, ..."); |
97aff369 |
659 | SP -= items; |
c4420975 |
660 | if (sv_derived_from(ST(0), "version")) { |
661 | SV * const lobj = SvRV(ST(0)); |
396482e1 |
662 | SV * const rs = newSViv( vcmp(lobj,new_version(newSVpvs("0"))) ); |
6e449a3a |
663 | mPUSHs(rs); |
c4420975 |
664 | PUTBACK; |
665 | return; |
666 | } |
667 | else |
668 | Perl_croak(aTHX_ "lobj is not of type version"); |
439cb1c4 |
669 | } |
670 | |
671 | XS(XS_version_noop) |
672 | { |
97aff369 |
673 | dVAR; |
2dfd8427 |
674 | dXSARGS; |
675 | if (items < 1) |
afa74d42 |
676 | croak_xs_usage(cv, "lobj, ..."); |
2dfd8427 |
677 | if (sv_derived_from(ST(0), "version")) |
678 | Perl_croak(aTHX_ "operation not supported with version object"); |
679 | else |
680 | Perl_croak(aTHX_ "lobj is not of type version"); |
681 | #ifndef HASATTRIBUTE_NORETURN |
682 | XSRETURN_EMPTY; |
683 | #endif |
439cb1c4 |
684 | } |
685 | |
c8d69e4a |
686 | XS(XS_version_is_alpha) |
687 | { |
97aff369 |
688 | dVAR; |
c8d69e4a |
689 | dXSARGS; |
690 | if (items != 1) |
afa74d42 |
691 | croak_xs_usage(cv, "lobj"); |
c8d69e4a |
692 | SP -= items; |
c4420975 |
693 | if (sv_derived_from(ST(0), "version")) { |
694 | SV * const lobj = ST(0); |
695 | if ( hv_exists((HV*)SvRV(lobj), "alpha", 5 ) ) |
696 | XSRETURN_YES; |
697 | else |
698 | XSRETURN_NO; |
c8d69e4a |
699 | PUTBACK; |
700 | return; |
701 | } |
c4420975 |
702 | else |
703 | Perl_croak(aTHX_ "lobj is not of type version"); |
c8d69e4a |
704 | } |
705 | |
137d6fc0 |
706 | XS(XS_version_qv) |
707 | { |
97aff369 |
708 | dVAR; |
137d6fc0 |
709 | dXSARGS; |
710 | if (items != 1) |
afa74d42 |
711 | croak_xs_usage(cv, "ver"); |
137d6fc0 |
712 | SP -= items; |
713 | { |
714 | SV * ver = ST(0); |
c4420975 |
715 | if ( !SvVOK(ver) ) { /* only need to do with if not already v-string */ |
ac0e6a2f |
716 | SV * const rv = sv_newmortal(); |
717 | sv_setsv(rv,ver); /* make a duplicate */ |
718 | upg_version(rv, TRUE); |
719 | PUSHs(rv); |
137d6fc0 |
720 | } |
721 | else |
722 | { |
6e449a3a |
723 | mPUSHs(new_version(ver)); |
137d6fc0 |
724 | } |
725 | |
726 | PUTBACK; |
727 | return; |
728 | } |
729 | } |
730 | |
8800c35a |
731 | XS(XS_utf8_is_utf8) |
732 | { |
97aff369 |
733 | dVAR; |
41be1fbd |
734 | dXSARGS; |
735 | if (items != 1) |
afa74d42 |
736 | croak_xs_usage(cv, "sv"); |
c4420975 |
737 | else { |
738 | const SV * const sv = ST(0); |
739 | if (SvUTF8(sv)) |
740 | XSRETURN_YES; |
741 | else |
742 | XSRETURN_NO; |
41be1fbd |
743 | } |
744 | XSRETURN_EMPTY; |
8800c35a |
745 | } |
746 | |
1b026014 |
747 | XS(XS_utf8_valid) |
748 | { |
97aff369 |
749 | dVAR; |
41be1fbd |
750 | dXSARGS; |
751 | if (items != 1) |
afa74d42 |
752 | croak_xs_usage(cv, "sv"); |
c4420975 |
753 | else { |
754 | SV * const sv = ST(0); |
755 | STRLEN len; |
756 | const char * const s = SvPV_const(sv,len); |
757 | if (!SvUTF8(sv) || is_utf8_string((const U8*)s,len)) |
758 | XSRETURN_YES; |
759 | else |
760 | XSRETURN_NO; |
761 | } |
41be1fbd |
762 | XSRETURN_EMPTY; |
1b026014 |
763 | } |
764 | |
765 | XS(XS_utf8_encode) |
766 | { |
97aff369 |
767 | dVAR; |
1b026014 |
768 | dXSARGS; |
769 | if (items != 1) |
afa74d42 |
770 | croak_xs_usage(cv, "sv"); |
c4420975 |
771 | sv_utf8_encode(ST(0)); |
1b026014 |
772 | XSRETURN_EMPTY; |
773 | } |
774 | |
775 | XS(XS_utf8_decode) |
776 | { |
97aff369 |
777 | dVAR; |
1b026014 |
778 | dXSARGS; |
779 | if (items != 1) |
afa74d42 |
780 | croak_xs_usage(cv, "sv"); |
c4420975 |
781 | else { |
782 | SV * const sv = ST(0); |
6867be6d |
783 | const bool RETVAL = sv_utf8_decode(sv); |
1b026014 |
784 | ST(0) = boolSV(RETVAL); |
785 | sv_2mortal(ST(0)); |
786 | } |
787 | XSRETURN(1); |
788 | } |
789 | |
790 | XS(XS_utf8_upgrade) |
791 | { |
97aff369 |
792 | dVAR; |
1b026014 |
793 | dXSARGS; |
794 | if (items != 1) |
afa74d42 |
795 | croak_xs_usage(cv, "sv"); |
c4420975 |
796 | else { |
797 | SV * const sv = ST(0); |
1b026014 |
798 | STRLEN RETVAL; |
799 | dXSTARG; |
800 | |
801 | RETVAL = sv_utf8_upgrade(sv); |
802 | XSprePUSH; PUSHi((IV)RETVAL); |
803 | } |
804 | XSRETURN(1); |
805 | } |
806 | |
807 | XS(XS_utf8_downgrade) |
808 | { |
97aff369 |
809 | dVAR; |
1b026014 |
810 | dXSARGS; |
811 | if (items < 1 || items > 2) |
afa74d42 |
812 | croak_xs_usage(cv, "sv, failok=0"); |
c4420975 |
813 | else { |
814 | SV * const sv = ST(0); |
6867be6d |
815 | const bool failok = (items < 2) ? 0 : (int)SvIV(ST(1)); |
816 | const bool RETVAL = sv_utf8_downgrade(sv, failok); |
1b026014 |
817 | |
1b026014 |
818 | ST(0) = boolSV(RETVAL); |
819 | sv_2mortal(ST(0)); |
820 | } |
821 | XSRETURN(1); |
822 | } |
823 | |
824 | XS(XS_utf8_native_to_unicode) |
825 | { |
97aff369 |
826 | dVAR; |
1b026014 |
827 | dXSARGS; |
6867be6d |
828 | const UV uv = SvUV(ST(0)); |
b7953727 |
829 | |
830 | if (items > 1) |
afa74d42 |
831 | croak_xs_usage(cv, "sv"); |
b7953727 |
832 | |
1b026014 |
833 | ST(0) = sv_2mortal(newSViv(NATIVE_TO_UNI(uv))); |
834 | XSRETURN(1); |
835 | } |
836 | |
837 | XS(XS_utf8_unicode_to_native) |
838 | { |
97aff369 |
839 | dVAR; |
1b026014 |
840 | dXSARGS; |
6867be6d |
841 | const UV uv = SvUV(ST(0)); |
b7953727 |
842 | |
843 | if (items > 1) |
afa74d42 |
844 | croak_xs_usage(cv, "sv"); |
b7953727 |
845 | |
1b026014 |
846 | ST(0) = sv_2mortal(newSViv(UNI_TO_NATIVE(uv))); |
847 | XSRETURN(1); |
848 | } |
849 | |
14a976d6 |
850 | XS(XS_Internals_SvREADONLY) /* This is dangerous stuff. */ |
29569577 |
851 | { |
97aff369 |
852 | dVAR; |
29569577 |
853 | dXSARGS; |
c4420975 |
854 | SV * const sv = SvRV(ST(0)); |
58c0efa5 |
855 | PERL_UNUSED_ARG(cv); |
6867be6d |
856 | |
29569577 |
857 | if (items == 1) { |
858 | if (SvREADONLY(sv)) |
859 | XSRETURN_YES; |
860 | else |
861 | XSRETURN_NO; |
862 | } |
863 | else if (items == 2) { |
864 | if (SvTRUE(ST(1))) { |
865 | SvREADONLY_on(sv); |
866 | XSRETURN_YES; |
867 | } |
868 | else { |
14a976d6 |
869 | /* I hope you really know what you are doing. */ |
29569577 |
870 | SvREADONLY_off(sv); |
871 | XSRETURN_NO; |
872 | } |
873 | } |
14a976d6 |
874 | XSRETURN_UNDEF; /* Can't happen. */ |
29569577 |
875 | } |
876 | |
14a976d6 |
877 | XS(XS_Internals_SvREFCNT) /* This is dangerous stuff. */ |
29569577 |
878 | { |
97aff369 |
879 | dVAR; |
29569577 |
880 | dXSARGS; |
c4420975 |
881 | SV * const sv = SvRV(ST(0)); |
58c0efa5 |
882 | PERL_UNUSED_ARG(cv); |
6867be6d |
883 | |
29569577 |
884 | if (items == 1) |
14a976d6 |
885 | XSRETURN_IV(SvREFCNT(sv) - 1); /* Minus the ref created for us. */ |
29569577 |
886 | else if (items == 2) { |
14a976d6 |
887 | /* I hope you really know what you are doing. */ |
29569577 |
888 | SvREFCNT(sv) = SvIV(ST(1)); |
889 | XSRETURN_IV(SvREFCNT(sv)); |
890 | } |
14a976d6 |
891 | XSRETURN_UNDEF; /* Can't happen. */ |
29569577 |
892 | } |
893 | |
f044d0d1 |
894 | XS(XS_Internals_hv_clear_placehold) |
dfd4ef2f |
895 | { |
97aff369 |
896 | dVAR; |
dfd4ef2f |
897 | dXSARGS; |
6867be6d |
898 | |
3540d4ce |
899 | if (items != 1) |
afa74d42 |
900 | croak_xs_usage(cv, "hv"); |
c4420975 |
901 | else { |
902 | HV * const hv = (HV *) SvRV(ST(0)); |
903 | hv_clear_placeholders(hv); |
904 | XSRETURN(0); |
905 | } |
dfd4ef2f |
906 | } |
39f7a870 |
907 | |
f63535fc |
908 | XS(XS_Regexp_DESTROY) |
909 | { |
910 | PERL_UNUSED_CONTEXT; |
911 | PERL_UNUSED_ARG(cv); |
912 | } |
913 | |
39f7a870 |
914 | XS(XS_PerlIO_get_layers) |
915 | { |
97aff369 |
916 | dVAR; |
39f7a870 |
917 | dXSARGS; |
918 | if (items < 1 || items % 2 == 0) |
afa74d42 |
919 | croak_xs_usage(cv, "filehandle[,args]"); |
5fef3b4a |
920 | #ifdef USE_PERLIO |
39f7a870 |
921 | { |
922 | SV * sv; |
923 | GV * gv; |
924 | IO * io; |
925 | bool input = TRUE; |
926 | bool details = FALSE; |
927 | |
928 | if (items > 1) { |
c4420975 |
929 | SV * const *svp; |
39f7a870 |
930 | for (svp = MARK + 2; svp <= SP; svp += 2) { |
c4420975 |
931 | SV * const * const varp = svp; |
932 | SV * const * const valp = svp + 1; |
39f7a870 |
933 | STRLEN klen; |
c4420975 |
934 | const char * const key = SvPV_const(*varp, klen); |
39f7a870 |
935 | |
936 | switch (*key) { |
937 | case 'i': |
938 | if (klen == 5 && memEQ(key, "input", 5)) { |
939 | input = SvTRUE(*valp); |
940 | break; |
941 | } |
942 | goto fail; |
943 | case 'o': |
944 | if (klen == 6 && memEQ(key, "output", 6)) { |
945 | input = !SvTRUE(*valp); |
946 | break; |
947 | } |
948 | goto fail; |
949 | case 'd': |
950 | if (klen == 7 && memEQ(key, "details", 7)) { |
951 | details = SvTRUE(*valp); |
952 | break; |
953 | } |
954 | goto fail; |
955 | default: |
956 | fail: |
957 | Perl_croak(aTHX_ |
958 | "get_layers: unknown argument '%s'", |
959 | key); |
960 | } |
961 | } |
962 | |
963 | SP -= (items - 1); |
964 | } |
965 | |
966 | sv = POPs; |
967 | gv = (GV*)sv; |
968 | |
969 | if (!isGV(sv)) { |
970 | if (SvROK(sv) && isGV(SvRV(sv))) |
971 | gv = (GV*)SvRV(sv); |
671d49be |
972 | else if (SvPOKp(sv)) |
f776e3cd |
973 | gv = gv_fetchsv(sv, 0, SVt_PVIO); |
39f7a870 |
974 | } |
975 | |
976 | if (gv && (io = GvIO(gv))) { |
c4420975 |
977 | AV* const av = PerlIO_get_layers(aTHX_ input ? |
39f7a870 |
978 | IoIFP(io) : IoOFP(io)); |
979 | I32 i; |
c4420975 |
980 | const I32 last = av_len(av); |
39f7a870 |
981 | I32 nitem = 0; |
982 | |
983 | for (i = last; i >= 0; i -= 3) { |
c4420975 |
984 | SV * const * const namsvp = av_fetch(av, i - 2, FALSE); |
985 | SV * const * const argsvp = av_fetch(av, i - 1, FALSE); |
986 | SV * const * const flgsvp = av_fetch(av, i, FALSE); |
39f7a870 |
987 | |
c4420975 |
988 | const bool namok = namsvp && *namsvp && SvPOK(*namsvp); |
989 | const bool argok = argsvp && *argsvp && SvPOK(*argsvp); |
990 | const bool flgok = flgsvp && *flgsvp && SvIOK(*flgsvp); |
39f7a870 |
991 | |
992 | if (details) { |
92e45a3e |
993 | /* Indents of 5? Yuck. */ |
994 | /* We know that PerlIO_get_layers creates a new SV for |
995 | the name and flags, so we can just take a reference |
996 | and "steal" it when we free the AV below. */ |
ec3bab8e |
997 | XPUSHs(namok |
92e45a3e |
998 | ? sv_2mortal(SvREFCNT_inc_simple_NN(*namsvp)) |
ec3bab8e |
999 | : &PL_sv_undef); |
1000 | XPUSHs(argok |
92e45a3e |
1001 | ? newSVpvn_flags(SvPVX_const(*argsvp), |
1002 | SvCUR(*argsvp), |
1003 | (SvUTF8(*argsvp) ? SVf_UTF8 : 0) |
1004 | | SVs_TEMP) |
1005 | : &PL_sv_undef); |
1006 | XPUSHs(namok |
1007 | ? sv_2mortal(SvREFCNT_inc_simple_NN(*flgsvp)) |
ec3bab8e |
1008 | : &PL_sv_undef); |
39f7a870 |
1009 | nitem += 3; |
1010 | } |
1011 | else { |
1012 | if (namok && argok) |
1eb9e81d |
1013 | XPUSHs(sv_2mortal(Perl_newSVpvf(aTHX_ "%"SVf"(%"SVf")", |
be2597df |
1014 | SVfARG(*namsvp), |
1eb9e81d |
1015 | SVfARG(*argsvp)))); |
39f7a870 |
1016 | else if (namok) |
92e45a3e |
1017 | XPUSHs(sv_2mortal(SvREFCNT_inc_simple_NN(*namsvp))); |
39f7a870 |
1018 | else |
1019 | XPUSHs(&PL_sv_undef); |
1020 | nitem++; |
1021 | if (flgok) { |
c4420975 |
1022 | const IV flags = SvIVX(*flgsvp); |
39f7a870 |
1023 | |
1024 | if (flags & PERLIO_F_UTF8) { |
84bafc02 |
1025 | XPUSHs(newSVpvs_flags("utf8", SVs_TEMP)); |
39f7a870 |
1026 | nitem++; |
1027 | } |
1028 | } |
1029 | } |
1030 | } |
1031 | |
1032 | SvREFCNT_dec(av); |
1033 | |
1034 | XSRETURN(nitem); |
1035 | } |
1036 | } |
5fef3b4a |
1037 | #endif |
39f7a870 |
1038 | |
1039 | XSRETURN(0); |
1040 | } |
1041 | |
9a7034eb |
1042 | XS(XS_Internals_hash_seed) |
c910b28a |
1043 | { |
97aff369 |
1044 | dVAR; |
c85d3f85 |
1045 | /* Using dXSARGS would also have dITEM and dSP, |
1046 | * which define 2 unused local variables. */ |
557b887a |
1047 | dAXMARK; |
53c1dcc0 |
1048 | PERL_UNUSED_ARG(cv); |
ad73156c |
1049 | PERL_UNUSED_VAR(mark); |
81eaca17 |
1050 | XSRETURN_UV(PERL_HASH_SEED); |
c910b28a |
1051 | } |
1052 | |
008fb0c0 |
1053 | XS(XS_Internals_rehash_seed) |
8e90d776 |
1054 | { |
97aff369 |
1055 | dVAR; |
8e90d776 |
1056 | /* Using dXSARGS would also have dITEM and dSP, |
1057 | * which define 2 unused local variables. */ |
557b887a |
1058 | dAXMARK; |
53c1dcc0 |
1059 | PERL_UNUSED_ARG(cv); |
ad73156c |
1060 | PERL_UNUSED_VAR(mark); |
008fb0c0 |
1061 | XSRETURN_UV(PL_rehash_seed); |
8e90d776 |
1062 | } |
1063 | |
05619474 |
1064 | XS(XS_Internals_HvREHASH) /* Subject to change */ |
1065 | { |
97aff369 |
1066 | dVAR; |
05619474 |
1067 | dXSARGS; |
93c51217 |
1068 | PERL_UNUSED_ARG(cv); |
05619474 |
1069 | if (SvROK(ST(0))) { |
c4420975 |
1070 | const HV * const hv = (HV *) SvRV(ST(0)); |
05619474 |
1071 | if (items == 1 && SvTYPE(hv) == SVt_PVHV) { |
1072 | if (HvREHASH(hv)) |
1073 | XSRETURN_YES; |
1074 | else |
1075 | XSRETURN_NO; |
1076 | } |
1077 | } |
1078 | Perl_croak(aTHX_ "Internals::HvREHASH $hashref"); |
1079 | } |
241d1a3b |
1080 | |
80305961 |
1081 | XS(XS_re_is_regexp) |
1082 | { |
1083 | dVAR; |
1084 | dXSARGS; |
f7e71195 |
1085 | PERL_UNUSED_VAR(cv); |
1086 | |
80305961 |
1087 | if (items != 1) |
afa74d42 |
1088 | croak_xs_usage(cv, "sv"); |
f7e71195 |
1089 | |
80305961 |
1090 | SP -= items; |
f7e71195 |
1091 | |
1092 | if (SvRXOK(ST(0))) { |
1093 | XSRETURN_YES; |
1094 | } else { |
1095 | XSRETURN_NO; |
80305961 |
1096 | } |
1097 | } |
1098 | |
192b9cd1 |
1099 | XS(XS_re_regnames_count) |
80305961 |
1100 | { |
192b9cd1 |
1101 | REGEXP *rx = PL_curpm ? PM_GETRE(PL_curpm) : NULL; |
1102 | SV * ret; |
80305961 |
1103 | dVAR; |
1104 | dXSARGS; |
192b9cd1 |
1105 | |
1106 | if (items != 0) |
afa74d42 |
1107 | croak_xs_usage(cv, ""); |
192b9cd1 |
1108 | |
1109 | SP -= items; |
1110 | |
1111 | if (!rx) |
1112 | XSRETURN_UNDEF; |
1113 | |
1114 | ret = CALLREG_NAMED_BUFF_COUNT(rx); |
1115 | |
1116 | SPAGAIN; |
1117 | |
1118 | if (ret) { |
ec83ea38 |
1119 | mXPUSHs(ret); |
192b9cd1 |
1120 | PUTBACK; |
1121 | return; |
1122 | } else { |
1123 | XSRETURN_UNDEF; |
1124 | } |
1125 | } |
1126 | |
1127 | XS(XS_re_regname) |
1128 | { |
1129 | dVAR; |
1130 | dXSARGS; |
1131 | REGEXP * rx; |
1132 | U32 flags; |
1133 | SV * ret; |
1134 | |
28d8d7f4 |
1135 | if (items < 1 || items > 2) |
afa74d42 |
1136 | croak_xs_usage(cv, "name[, all ]"); |
192b9cd1 |
1137 | |
80305961 |
1138 | SP -= items; |
80305961 |
1139 | |
192b9cd1 |
1140 | rx = PL_curpm ? PM_GETRE(PL_curpm) : NULL; |
1141 | |
1142 | if (!rx) |
1143 | XSRETURN_UNDEF; |
1144 | |
1145 | if (items == 2 && SvTRUE(ST(1))) { |
f1b875a0 |
1146 | flags = RXapif_ALL; |
192b9cd1 |
1147 | } else { |
f1b875a0 |
1148 | flags = RXapif_ONE; |
80305961 |
1149 | } |
f1b875a0 |
1150 | ret = CALLREG_NAMED_BUFF_FETCH(rx, ST(0), (flags | RXapif_REGNAME)); |
192b9cd1 |
1151 | |
1152 | if (ret) { |
ec83ea38 |
1153 | mXPUSHs(ret); |
192b9cd1 |
1154 | XSRETURN(1); |
1155 | } |
1156 | XSRETURN_UNDEF; |
80305961 |
1157 | } |
1158 | |
192b9cd1 |
1159 | |
80305961 |
1160 | XS(XS_re_regnames) |
1161 | { |
192b9cd1 |
1162 | dVAR; |
80305961 |
1163 | dXSARGS; |
192b9cd1 |
1164 | REGEXP * rx; |
1165 | U32 flags; |
1166 | SV *ret; |
1167 | AV *av; |
1168 | I32 length; |
1169 | I32 i; |
1170 | SV **entry; |
1171 | |
1172 | if (items > 1) |
afa74d42 |
1173 | croak_xs_usage(cv, "[all]"); |
192b9cd1 |
1174 | |
1175 | rx = PL_curpm ? PM_GETRE(PL_curpm) : NULL; |
1176 | |
1177 | if (!rx) |
1178 | XSRETURN_UNDEF; |
1179 | |
1180 | if (items == 1 && SvTRUE(ST(0))) { |
f1b875a0 |
1181 | flags = RXapif_ALL; |
192b9cd1 |
1182 | } else { |
f1b875a0 |
1183 | flags = RXapif_ONE; |
192b9cd1 |
1184 | } |
1185 | |
80305961 |
1186 | SP -= items; |
80305961 |
1187 | |
f1b875a0 |
1188 | ret = CALLREG_NAMED_BUFF_ALL(rx, (flags | RXapif_REGNAMES)); |
192b9cd1 |
1189 | |
1190 | SPAGAIN; |
1191 | |
1192 | SP -= items; |
1193 | |
1194 | if (!ret) |
1195 | XSRETURN_UNDEF; |
1196 | |
1197 | av = (AV*)SvRV(ret); |
1198 | length = av_len(av); |
1199 | |
1200 | for (i = 0; i <= length; i++) { |
1201 | entry = av_fetch(av, i, FALSE); |
1202 | |
1203 | if (!entry) |
1204 | Perl_croak(aTHX_ "NULL array element in re::regnames()"); |
1205 | |
ec83ea38 |
1206 | mXPUSHs(SvREFCNT_inc_simple_NN(*entry)); |
80305961 |
1207 | } |
ec83ea38 |
1208 | |
1209 | SvREFCNT_dec(ret); |
1210 | |
192b9cd1 |
1211 | PUTBACK; |
1212 | return; |
80305961 |
1213 | } |
1214 | |
192c1e27 |
1215 | XS(XS_re_regexp_pattern) |
1216 | { |
1217 | dVAR; |
1218 | dXSARGS; |
1219 | REGEXP *re; |
192c1e27 |
1220 | |
1221 | if (items != 1) |
afa74d42 |
1222 | croak_xs_usage(cv, "sv"); |
192c1e27 |
1223 | |
1224 | SP -= items; |
1225 | |
1226 | /* |
1227 | Checks if a reference is a regex or not. If the parameter is |
1228 | not a ref, or is not the result of a qr// then returns false |
1229 | in scalar context and an empty list in list context. |
1230 | Otherwise in list context it returns the pattern and the |
1231 | modifiers, in scalar context it returns the pattern just as it |
1232 | would if the qr// was stringified normally, regardless as |
1233 | to the class of the variable and any strigification overloads |
1234 | on the object. |
1235 | */ |
1236 | |
1237 | if ((re = SvRX(ST(0)))) /* assign deliberate */ |
1238 | { |
1239 | /* Housten, we have a regex! */ |
1240 | SV *pattern; |
1241 | STRLEN left = 0; |
1242 | char reflags[6]; |
1243 | |
1244 | if ( GIMME_V == G_ARRAY ) { |
1245 | /* |
1246 | we are in list context so stringify |
1247 | the modifiers that apply. We ignore "negative |
1248 | modifiers" in this scenario. |
1249 | */ |
1250 | |
1251 | const char *fptr = INT_PAT_MODS; |
1252 | char ch; |
1253 | U16 match_flags = (U16)((RX_EXTFLAGS(re) & PMf_COMPILETIME) |
1254 | >> RXf_PMf_STD_PMMOD_SHIFT); |
1255 | |
1256 | while((ch = *fptr++)) { |
1257 | if(match_flags & 1) { |
1258 | reflags[left++] = ch; |
1259 | } |
1260 | match_flags >>= 1; |
1261 | } |
1262 | |
fb632ce3 |
1263 | pattern = newSVpvn_flags(RX_PRECOMP(re),RX_PRELEN(re), |
1264 | (RX_UTF8(re) ? SVf_UTF8 : 0) | SVs_TEMP); |
192c1e27 |
1265 | |
1266 | /* return the pattern and the modifiers */ |
1267 | XPUSHs(pattern); |
fb632ce3 |
1268 | XPUSHs(newSVpvn_flags(reflags, left, SVs_TEMP)); |
192c1e27 |
1269 | XSRETURN(2); |
1270 | } else { |
1271 | /* Scalar, so use the string that Perl would return */ |
1272 | /* return the pattern in (?msix:..) format */ |
1273 | #if PERL_VERSION >= 11 |
1274 | pattern = sv_2mortal(newSVsv((SV*)re)); |
1275 | #else |
fb632ce3 |
1276 | pattern = newSVpvn_flags(RX_WRAPPED(re), RX_WRAPLEN(re), |
1277 | (RX_UTF8(re) ? SVf_UTF8 : 0) | SVs_TEMP); |
192c1e27 |
1278 | #endif |
1279 | XPUSHs(pattern); |
1280 | XSRETURN(1); |
1281 | } |
1282 | } else { |
1283 | /* It ain't a regexp folks */ |
1284 | if ( GIMME_V == G_ARRAY ) { |
1285 | /* return the empty list */ |
1286 | XSRETURN_UNDEF; |
1287 | } else { |
1288 | /* Because of the (?:..) wrapping involved in a |
1289 | stringified pattern it is impossible to get a |
1290 | result for a real regexp that would evaluate to |
1291 | false. Therefore we can return PL_sv_no to signify |
1292 | that the object is not a regex, this means that one |
1293 | can say |
1294 | |
1295 | if (regex($might_be_a_regex) eq '(?:foo)') { } |
1296 | |
1297 | and not worry about undefined values. |
1298 | */ |
1299 | XSRETURN_NO; |
1300 | } |
1301 | } |
1302 | /* NOT-REACHED */ |
1303 | } |
1304 | |
192b9cd1 |
1305 | XS(XS_Tie_Hash_NamedCapture_FETCH) |
80305961 |
1306 | { |
192b9cd1 |
1307 | dVAR; |
80305961 |
1308 | dXSARGS; |
192b9cd1 |
1309 | REGEXP * rx; |
1310 | U32 flags; |
1311 | SV * ret; |
1312 | |
1313 | if (items != 2) |
afa74d42 |
1314 | croak_xs_usage(cv, "$key, $flags"); |
192b9cd1 |
1315 | |
1316 | rx = PL_curpm ? PM_GETRE(PL_curpm) : NULL; |
1317 | |
1318 | if (!rx) |
1319 | XSRETURN_UNDEF; |
1320 | |
80305961 |
1321 | SP -= items; |
192b9cd1 |
1322 | |
1323 | flags = (U32)INT2PTR(IV,SvIV(SvRV((SV*)ST(0)))); |
1324 | ret = CALLREG_NAMED_BUFF_FETCH(rx, ST(1), flags); |
1325 | |
1326 | SPAGAIN; |
1327 | |
1328 | if (ret) { |
ec83ea38 |
1329 | mXPUSHs(ret); |
192b9cd1 |
1330 | PUTBACK; |
1331 | return; |
1332 | } |
1333 | XSRETURN_UNDEF; |
1334 | } |
1335 | |
1336 | XS(XS_Tie_Hash_NamedCapture_STORE) |
1337 | { |
1338 | dVAR; |
1339 | dXSARGS; |
1340 | REGEXP * rx; |
1341 | U32 flags; |
1342 | |
1343 | if (items != 3) |
afa74d42 |
1344 | croak_xs_usage(cv, "$key, $value, $flags"); |
192b9cd1 |
1345 | |
1346 | rx = PL_curpm ? PM_GETRE(PL_curpm) : NULL; |
1347 | |
1348 | if (!rx) { |
1349 | if (!PL_localizing) |
1350 | Perl_croak(aTHX_ PL_no_modify); |
1351 | else |
28d8d7f4 |
1352 | XSRETURN_UNDEF; |
80305961 |
1353 | } |
192b9cd1 |
1354 | |
1355 | SP -= items; |
1356 | |
1357 | flags = (U32)INT2PTR(IV,SvIV(SvRV((SV*)ST(0)))); |
1358 | CALLREG_NAMED_BUFF_STORE(rx,ST(1), ST(2), flags); |
80305961 |
1359 | } |
1360 | |
192b9cd1 |
1361 | XS(XS_Tie_Hash_NamedCapture_DELETE) |
1362 | { |
1363 | dVAR; |
1364 | dXSARGS; |
1365 | REGEXP * rx = PL_curpm ? PM_GETRE(PL_curpm) : NULL; |
1366 | U32 flags; |
80305961 |
1367 | |
192b9cd1 |
1368 | if (items != 2) |
afa74d42 |
1369 | croak_xs_usage(cv, "$key, $flags"); |
192b9cd1 |
1370 | |
1371 | if (!rx) |
1372 | Perl_croak(aTHX_ PL_no_modify); |
1373 | |
1374 | SP -= items; |
1375 | |
1376 | flags = (U32)INT2PTR(IV,SvIV(SvRV((SV*)ST(0)))); |
1377 | CALLREG_NAMED_BUFF_DELETE(rx, ST(1), flags); |
1378 | } |
1379 | |
1380 | XS(XS_Tie_Hash_NamedCapture_CLEAR) |
80305961 |
1381 | { |
192b9cd1 |
1382 | dVAR; |
80305961 |
1383 | dXSARGS; |
192b9cd1 |
1384 | REGEXP * rx; |
1385 | U32 flags; |
1386 | |
1387 | if (items != 1) |
afa74d42 |
1388 | croak_xs_usage(cv, "$flags"); |
192b9cd1 |
1389 | |
1390 | rx = PL_curpm ? PM_GETRE(PL_curpm) : NULL; |
1391 | |
1392 | if (!rx) |
1393 | Perl_croak(aTHX_ PL_no_modify); |
1394 | |
80305961 |
1395 | SP -= items; |
80305961 |
1396 | |
192b9cd1 |
1397 | flags = (U32)INT2PTR(IV,SvIV(SvRV((SV*)ST(0)))); |
1398 | CALLREG_NAMED_BUFF_CLEAR(rx, flags); |
1399 | } |
1400 | |
1401 | XS(XS_Tie_Hash_NamedCapture_EXISTS) |
1402 | { |
1403 | dVAR; |
1404 | dXSARGS; |
1405 | REGEXP * rx; |
1406 | U32 flags; |
1407 | SV * ret; |
1408 | |
1409 | if (items != 2) |
afa74d42 |
1410 | croak_xs_usage(cv, "$key, $flags"); |
192b9cd1 |
1411 | |
1412 | rx = PL_curpm ? PM_GETRE(PL_curpm) : NULL; |
1413 | |
1414 | if (!rx) |
28d8d7f4 |
1415 | XSRETURN_UNDEF; |
192b9cd1 |
1416 | |
1417 | SP -= items; |
1418 | |
1419 | flags = (U32)INT2PTR(IV,SvIV(SvRV((SV*)ST(0)))); |
1420 | ret = CALLREG_NAMED_BUFF_EXISTS(rx, ST(1), flags); |
1421 | |
1422 | SPAGAIN; |
1423 | |
1424 | XPUSHs(ret); |
80305961 |
1425 | PUTBACK; |
1426 | return; |
80305961 |
1427 | } |
1428 | |
86aa3d53 |
1429 | XS(XS_Tie_Hash_NamedCapture_FIRSTK) |
192b9cd1 |
1430 | { |
1431 | dVAR; |
1432 | dXSARGS; |
1433 | REGEXP * rx; |
1434 | U32 flags; |
1435 | SV * ret; |
80305961 |
1436 | |
192b9cd1 |
1437 | if (items != 1) |
afa74d42 |
1438 | croak_xs_usage(cv, ""); |
192b9cd1 |
1439 | |
1440 | rx = PL_curpm ? PM_GETRE(PL_curpm) : NULL; |
1441 | |
1442 | if (!rx) |
1443 | XSRETURN_UNDEF; |
1444 | |
1445 | SP -= items; |
1446 | |
1447 | flags = (U32)INT2PTR(IV,SvIV(SvRV((SV*)ST(0)))); |
1448 | ret = CALLREG_NAMED_BUFF_FIRSTKEY(rx, flags); |
1449 | |
1450 | SPAGAIN; |
1451 | |
1452 | if (ret) { |
ec83ea38 |
1453 | mXPUSHs(ret); |
192b9cd1 |
1454 | PUTBACK; |
1455 | } else { |
1456 | XSRETURN_UNDEF; |
1457 | } |
1458 | |
1459 | } |
1460 | |
86aa3d53 |
1461 | XS(XS_Tie_Hash_NamedCapture_NEXTK) |
80305961 |
1462 | { |
192b9cd1 |
1463 | dVAR; |
80305961 |
1464 | dXSARGS; |
192b9cd1 |
1465 | REGEXP * rx; |
1466 | U32 flags; |
1467 | SV * ret; |
1468 | |
1469 | if (items != 2) |
afa74d42 |
1470 | croak_xs_usage(cv, "$lastkey"); |
192b9cd1 |
1471 | |
1472 | rx = PL_curpm ? PM_GETRE(PL_curpm) : NULL; |
1473 | |
1474 | if (!rx) |
1475 | XSRETURN_UNDEF; |
80305961 |
1476 | |
80305961 |
1477 | SP -= items; |
192b9cd1 |
1478 | |
1479 | flags = (U32)INT2PTR(IV,SvIV(SvRV((SV*)ST(0)))); |
1480 | ret = CALLREG_NAMED_BUFF_NEXTKEY(rx, ST(1), flags); |
1481 | |
1482 | SPAGAIN; |
1483 | |
1484 | if (ret) { |
ec83ea38 |
1485 | mXPUSHs(ret); |
80305961 |
1486 | } else { |
1487 | XSRETURN_UNDEF; |
1488 | } |
1489 | PUTBACK; |
192b9cd1 |
1490 | } |
1491 | |
1492 | XS(XS_Tie_Hash_NamedCapture_SCALAR) |
1493 | { |
1494 | dVAR; |
1495 | dXSARGS; |
1496 | REGEXP * rx; |
1497 | U32 flags; |
1498 | SV * ret; |
1499 | |
1500 | if (items != 1) |
afa74d42 |
1501 | croak_xs_usage(cv, ""); |
192b9cd1 |
1502 | |
1503 | rx = PL_curpm ? PM_GETRE(PL_curpm) : NULL; |
1504 | |
1505 | if (!rx) |
1506 | XSRETURN_UNDEF; |
1507 | |
1508 | SP -= items; |
1509 | |
1510 | flags = (U32)INT2PTR(IV,SvIV(SvRV((SV*)ST(0)))); |
1511 | ret = CALLREG_NAMED_BUFF_SCALAR(rx, flags); |
1512 | |
1513 | SPAGAIN; |
1514 | |
1515 | if (ret) { |
ec83ea38 |
1516 | mXPUSHs(ret); |
192b9cd1 |
1517 | PUTBACK; |
1518 | return; |
1519 | } else { |
1520 | XSRETURN_UNDEF; |
1521 | } |
1522 | } |
1523 | |
1524 | XS(XS_Tie_Hash_NamedCapture_flags) |
1525 | { |
1526 | dVAR; |
1527 | dXSARGS; |
1528 | |
1529 | if (items != 0) |
afa74d42 |
1530 | croak_xs_usage(cv, ""); |
192b9cd1 |
1531 | |
6e449a3a |
1532 | mXPUSHu(RXapif_ONE); |
1533 | mXPUSHu(RXapif_ALL); |
192b9cd1 |
1534 | PUTBACK; |
1535 | return; |
80305961 |
1536 | } |
1537 | |
1538 | |
241d1a3b |
1539 | /* |
1540 | * Local variables: |
1541 | * c-indentation-style: bsd |
1542 | * c-basic-offset: 4 |
1543 | * indent-tabs-mode: t |
1544 | * End: |
1545 | * |
37442d52 |
1546 | * ex: set ts=8 sts=4 sw=4 noet: |
1547 | */ |