1 /* This file is part of the re::engine::Plugin Perl module.
2 * See http://search.cpan.org/dist/re-engine-Plugin/ */
4 #define PERL_NO_GET_CONTEXT
9 /* --- Helpers ------------------------------------------------------------- */
11 #define XSH_PACKAGE "re::engine::Plugin"
16 /* ... Lexical hints ....................................................... */
23 STATIC SV *rep_validate_callback(SV *code) {
28 if (SvTYPE(code) < SVt_PVCV)
31 return SvREFCNT_inc_simple_NN(code);
34 static void xsh_hints_user_init(pTHX_ xsh_hints_user_t *hv, xsh_hints_user_t *v) {
35 hv->comp = rep_validate_callback(v->comp);
36 hv->exec = rep_validate_callback(v->exec);
43 static void xsh_hints_user_clone(pTHX_ xsh_hints_user_t *nv, xsh_hints_user_t *ov, CLONE_PARAMS *params) {
44 nv->comp = xsh_dup_inc(ov->comp, params);
45 nv->exec = xsh_dup_inc(ov->exec, params);
50 #endif /* XSH_THREADSAFE */
52 static void xsh_hints_user_deinit(pTHX_ xsh_hints_user_t *hv) {
53 SvREFCNT_dec(hv->comp);
54 SvREFCNT_dec(hv->exec);
59 #define rep_hint() xsh_hints_detag(xsh_hints_fetch())
61 #define XSH_HINTS_TYPE_USER 1
62 #define XSH_HINTS_ONLY_COMPILE_TIME 0
64 #include "xsh/hints.h"
66 /* ... Thread-local storage ................................................ */
68 #define XSH_THREADS_USER_CONTEXT 0
69 #define XSH_THREADS_USER_LOCAL_SETUP 0
70 #define XSH_THREADS_USER_LOCAL_TEARDOWN 0
71 #define XSH_THREADS_USER_GLOBAL_TEARDOWN 0
72 #define XSH_THREADS_COMPILE_TIME_PROTECTION 0
74 #include "xsh/threads.h"
76 /* --- Custom regexp engine ------------------------------------------------ */
78 #define GET_SELF_FROM_PPRIVATE(pprivate) \
79 re__engine__Plugin self; \
80 SELF_FROM_PPRIVATE(self,pprivate);
82 /* re__engine__Plugin self; SELF_FROM_PPRIVATE(self,rx->pprivate) */
83 #define SELF_FROM_PPRIVATE(self, pprivate) \
84 if (sv_isobject(pprivate)) { \
85 SV * ref = SvRV((SV*)pprivate); \
86 IV tmp = SvIV((SV*)ref); \
87 self = INT2PTR(re__engine__Plugin,tmp); \
89 Perl_croak(aTHX_ "Not an object"); \
92 #if XSH_HAS_PERL(5, 19, 4)
93 # define REP_ENG_EXEC_MINEND_TYPE SSize_t
95 # define REP_ENG_EXEC_MINEND_TYPE I32
99 EXTERN_C const regexp_engine engine_plugin;
100 #if XSH_HAS_PERL(5, 11, 0)
101 EXTERN_C REGEXP * Plugin_comp(pTHX_ SV * const, U32);
103 EXTERN_C REGEXP * Plugin_comp(pTHX_ const SV * const, const U32);
105 EXTERN_C I32 Plugin_exec(pTHX_ REGEXP * const, char *, char *,
106 char *, REP_ENG_EXEC_MINEND_TYPE, SV *, void *, U32);
107 #if XSH_HAS_PERL(5, 19, 1)
108 EXTERN_C char * Plugin_intuit(pTHX_ REGEXP * const, SV *, const char * const,
109 char *, char *, U32, re_scream_pos_data *);
111 EXTERN_C char * Plugin_intuit(pTHX_ REGEXP * const, SV *, char *,
112 char *, U32, re_scream_pos_data *);
114 EXTERN_C SV * Plugin_checkstr(pTHX_ REGEXP * const);
115 EXTERN_C void Plugin_free(pTHX_ REGEXP * const);
116 EXTERN_C void * Plugin_dupe(pTHX_ REGEXP * const, CLONE_PARAMS *);
117 EXTERN_C void Plugin_numbered_buff_FETCH(pTHX_ REGEXP * const,
118 const I32, SV * const);
119 EXTERN_C void Plugin_numbered_buff_STORE(pTHX_ REGEXP * const,
120 const I32, SV const * const);
121 EXTERN_C I32 Plugin_numbered_buff_LENGTH(pTHX_ REGEXP * const,
122 const SV * const, const I32);
123 EXTERN_C SV * Plugin_named_buff (pTHX_ REGEXP * const, SV * const,
124 SV * const, const U32);
125 EXTERN_C SV * Plugin_named_buff_iter (pTHX_ REGEXP * const, const SV * const,
127 EXTERN_C SV * Plugin_package(pTHX_ REGEXP * const);
129 EXTERN_C void * Plugin_dupe(pTHX_ REGEXP * const, CLONE_PARAMS *);
132 EXTERN_C const regexp_engine engine_plugin;
135 #define RE_ENGINE_PLUGIN (&engine_plugin)
136 const regexp_engine engine_plugin = {
142 Plugin_numbered_buff_FETCH,
143 Plugin_numbered_buff_STORE,
144 Plugin_numbered_buff_LENGTH,
146 Plugin_named_buff_iter,
148 #if defined(USE_ITHREADS)
151 #if XSH_HAS_PERL(5, 17, 0)
156 typedef struct replug {
157 /* Pointer back to the containing regexp struct so that accessors
158 * can modify nparens, gofs etc. */
161 /* A copy of the pattern given to comp, for ->pattern */
164 /* A copy of the string being matched against, for ->str */
175 SV * cb_num_capture_buff_FETCH;
176 SV * cb_num_capture_buff_STORE;
177 SV * cb_num_capture_buff_LENGTH;
178 } *re__engine__Plugin;
180 #if XSH_HAS_PERL(5, 11, 0)
181 # define rxREGEXP(RX) (SvANY(RX))
182 # define newREGEXP(RX) ((RX) = ((REGEXP*) newSV_type(SVt_REGEXP)))
184 # define rxREGEXP(RX) (RX)
185 # define newREGEXP(RX) (Newxz((RX), 1, struct regexp))
189 #if XSH_HAS_PERL(5, 11, 0)
190 Plugin_comp(pTHX_ SV * const pattern, U32 flags)
192 Plugin_comp(pTHX_ const SV * const pattern, const U32 flags)
199 re__engine__Plugin re;
200 const xsh_hints_user_t *h;
208 if (!h) /* This looks like a pragma leak. Apply the default behaviour */
209 return re_compile(pattern, flags);
211 /* exp/xend version of the pattern & length */
212 pbuf = SvPV((SV*)pattern, plen);
214 /* Our blessed object */
216 SvREFCNT_inc_simple_void_NN(obj);
217 Newxz(re, 1, struct replug);
218 sv_setref_pv(obj, "re::engine::Plugin", (void*)re);
223 re->rx = rx; /* Make the rx accessible from self->rx */
224 rx->intflags = flags; /* Flags for internal use */
225 rx->extflags = flags; /* Flags for perl to use */
226 rx->engine = RE_ENGINE_PLUGIN; /* Compile to use this engine */
228 #if !XSH_HAS_PERL(5, 11, 0)
229 rx->refcnt = 1; /* Refcount so we won't be destroyed */
231 /* Precompiled pattern for pp_regcomp to use */
233 rx->precomp = savepvn(pbuf, rx->prelen);
235 /* Set up qr// stringification to be equivalent to the supplied
236 * pattern, this should be done via overload eventually.
238 rx->wraplen = rx->prelen;
239 Newx(rx->wrapped, rx->wraplen, char);
240 Copy(rx->precomp, rx->wrapped, rx->wraplen, char);
243 /* Store our private object */
246 /* Store the pattern for ->pattern */
247 re->pattern = (SV*)pattern;
248 SvREFCNT_inc_simple_void(re->pattern);
250 /* If there's an exec callback, store it into the private object so
251 * that it will be the one to be called, even if the engine changes
254 re->cb_exec = h->exec;
255 SvREFCNT_inc_simple_void_NN(h->exec);
258 re->cb_num_capture_buff_FETCH = NULL;
259 re->cb_num_capture_buff_STORE = NULL;
260 re->cb_num_capture_buff_LENGTH = NULL;
262 /* Call our callback function if one was defined, if not we've
263 * already set up all the stuff we're going to to need for
264 * subsequent exec and other calls */
273 call_sv(h->comp, G_DISCARD);
279 /* If any of the comp-time accessors were called we'll have to
280 * update the regexp struct with the new info.
283 Newxz(rx->offs, rx->nparens + 1, regexp_paren_pair);
289 Plugin_exec(pTHX_ REGEXP * const RX, char *stringarg, char *strend,
290 char *strbeg, REP_ENG_EXEC_MINEND_TYPE minend,
291 SV *sv, void *data, U32 flags)
295 struct regexp *rx = rxREGEXP(RX);
296 GET_SELF_FROM_PPRIVATE(rx->pprivate);
301 /* Store the current str for ->str */
302 SvREFCNT_dec(self->str);
304 SvREFCNT_inc_simple_void(self->str);
310 XPUSHs(rx->pprivate);
314 call_sv(self->cb_exec, G_SCALAR);
335 #if XSH_HAS_PERL(5, 19, 1)
336 Plugin_intuit(pTHX_ REGEXP * const RX, SV *sv, const char * const strbeg,
337 char *strpos, char *strend, U32 flags, re_scream_pos_data *data)
339 Plugin_intuit(pTHX_ REGEXP * const RX, SV *sv, char *strpos,
340 char *strend, U32 flags, re_scream_pos_data *data)
345 #if XSH_HAS_PERL(5, 19, 1)
346 PERL_UNUSED_ARG(strbeg);
348 PERL_UNUSED_ARG(strpos);
349 PERL_UNUSED_ARG(strend);
350 PERL_UNUSED_ARG(flags);
351 PERL_UNUSED_ARG(data);
356 Plugin_checkstr(pTHX_ REGEXP * const RX)
363 Plugin_free(pTHX_ REGEXP * const RX)
366 re__engine__Plugin self;
372 SELF_FROM_PPRIVATE(self, rx->pprivate);
374 SvREFCNT_dec(self->pattern);
375 SvREFCNT_dec(self->str);
377 SvREFCNT_dec(self->cb_exec);
379 SvREFCNT_dec(self->cb_num_capture_buff_FETCH);
380 SvREFCNT_dec(self->cb_num_capture_buff_STORE);
381 SvREFCNT_dec(self->cb_num_capture_buff_LENGTH);
390 callback = self->cb_free;
397 XPUSHs(rx->pprivate);
400 call_sv(callback, G_DISCARD);
411 Plugin_dupe(pTHX_ REGEXP * const RX, CLONE_PARAMS *param)
413 struct regexp *rx = rxREGEXP(RX);
414 Perl_croak(aTHX_ "dupe not supported yet");
420 Plugin_numbered_buff_FETCH(pTHX_ REGEXP * const RX, const I32 paren,
426 struct regexp *rx = rxREGEXP(RX);
427 GET_SELF_FROM_PPRIVATE(rx->pprivate);
429 callback = self->cb_num_capture_buff_FETCH;
436 XPUSHs(rx->pprivate);
437 XPUSHs(sv_2mortal(newSViv(paren)));
440 items = call_sv(callback, G_SCALAR);
449 sv_setsv(sv, &PL_sv_undef);
456 sv_setsv(sv, &PL_sv_undef);
461 Plugin_numbered_buff_STORE(pTHX_ REGEXP * const RX, const I32 paren,
462 SV const * const value)
466 struct regexp *rx = rxREGEXP(RX);
467 GET_SELF_FROM_PPRIVATE(rx->pprivate);
469 callback = self->cb_num_capture_buff_STORE;
476 XPUSHs(rx->pprivate);
477 XPUSHs(sv_2mortal(newSViv(paren)));
478 XPUSHs((SV *) value);
481 call_sv(callback, G_DISCARD);
490 Plugin_numbered_buff_LENGTH(pTHX_ REGEXP * const RX, const SV * const sv,
495 struct regexp *rx = rxREGEXP(RX);
496 GET_SELF_FROM_PPRIVATE(rx->pprivate);
498 callback = self->cb_num_capture_buff_LENGTH;
507 XPUSHs(rx->pprivate);
508 XPUSHs(sv_2mortal(newSViv(paren)));
511 call_sv(callback, G_SCALAR);
523 /* TODO: call FETCH and get the length on that value */
530 Plugin_named_buff (pTHX_ REGEXP * const RX, SV * const key, SV * const value,
537 Plugin_named_buff_iter (pTHX_ REGEXP * const RX, const SV * const lastkey,
544 Plugin_package(pTHX_ REGEXP * const RX)
547 return newSVpvs("re::engine::Plugin");
550 static void xsh_user_global_setup(pTHX) {
553 stash = gv_stashpvn(XSH_PACKAGE, XSH_PACKAGE_LEN, 1);
554 newCONSTSUB(stash, "REP_THREADSAFE", newSVuv(XSH_THREADSAFE));
555 newCONSTSUB(stash, "REP_FORKSAFE", newSVuv(XSH_FORKSAFE));
560 /* --- XS ------------------------------------------------------------------ */
562 MODULE = re::engine::Plugin PACKAGE = re::engine::Plugin
579 #endif /* XSH_THREADSAFE */
582 pattern(re::engine::Plugin self, ...)
584 XPUSHs(self->pattern);
587 str(re::engine::Plugin self, ...)
592 mod(re::engine::Plugin self)
598 flags = self->rx->intflags;
599 if (flags & PMf_FOLD) /* /i */
601 if (flags & PMf_MULTILINE) /* /m */
603 if (flags & PMf_SINGLELINE) /* /s */
605 if (flags & PMf_EXTENDED) /* /x */
607 if (flags & RXf_PMf_KEEPCOPY) /* /p */
611 for (i = 0; i < n; ++i) {
618 stash(re::engine::Plugin self, ...)
621 SvREFCNT_dec(self->stash);
623 SvREFCNT_inc_simple_void(self->stash);
630 minlen(re::engine::Plugin self, ...)
633 self->rx->minlen = (I32)SvIV(ST(1));
636 if (self->rx->minlen) {
637 XPUSHs(sv_2mortal(newSViv(self->rx->minlen)));
639 XPUSHs(sv_2mortal(&PL_sv_undef));
644 gofs(re::engine::Plugin self, ...)
647 self->rx->gofs = (U32)SvIV(ST(1));
650 if (self->rx->gofs) {
651 XPUSHs(sv_2mortal(newSVuv(self->rx->gofs)));
653 XPUSHs(sv_2mortal(&PL_sv_undef));
658 nparens(re::engine::Plugin self, ...)
661 self->rx->nparens = (U32)SvIV(ST(1));
664 if (self->rx->nparens) {
665 XPUSHs(sv_2mortal(newSVuv(self->rx->nparens)));
667 XPUSHs(sv_2mortal(&PL_sv_undef));
672 _exec(re::engine::Plugin self, ...)
675 SvREFCNT_dec(self->cb_exec);
676 self->cb_exec = ST(1);
677 SvREFCNT_inc_simple_void(self->cb_exec);
681 _num_capture_buff_FETCH(re::engine::Plugin self, ...)
684 SvREFCNT_dec(self->cb_num_capture_buff_FETCH);
685 self->cb_num_capture_buff_FETCH = ST(1);
686 SvREFCNT_inc_simple_void(self->cb_num_capture_buff_FETCH);
690 _num_capture_buff_STORE(re::engine::Plugin self, ...)
693 SvREFCNT_dec(self->cb_num_capture_buff_STORE);
694 self->cb_num_capture_buff_STORE = ST(1);
695 SvREFCNT_inc_simple_void(self->cb_num_capture_buff_STORE);
699 _num_capture_buff_LENGTH(re::engine::Plugin self, ...)
702 SvREFCNT_dec(self->cb_num_capture_buff_LENGTH);
703 self->cb_num_capture_buff_LENGTH = ST(1);
704 SvREFCNT_inc_simple_void(self->cb_num_capture_buff_LENGTH);
708 _tag(SV *comp, SV *exec)
710 xsh_hints_user_t arg;
714 RETVAL = xsh_hints_tag(&arg);
721 XPUSHs(sv_2mortal(newSViv(PTR2IV(&engine_plugin))));