1 #if defined(PERL_EXT_RE_DEBUG) && !defined(DEBUGGING)
5 #define PERL_NO_GET_CONTEXT
14 extern REGEXP* my_re_compile (pTHX_ const SV * const pattern, const U32 pm_flags);
15 extern I32 my_regexec (pTHX_ REGEXP * const prog, char* stringarg, char* strend,
16 char* strbeg, I32 minend, SV* screamer,
17 void* data, U32 flags);
19 extern char* my_re_intuit_start (pTHX_ REGEXP * const prog, SV *sv, char *strpos,
20 char *strend, const U32 flags,
21 struct re_scream_pos_data_s *data);
22 extern SV* my_re_intuit_string (pTHX_ REGEXP * const prog);
24 extern void my_regfree (pTHX_ REGEXP * const r);
26 extern void my_reg_numbered_buff_fetch(pTHX_ REGEXP * const rx, const I32 paren,
28 extern void my_reg_numbered_buff_store(pTHX_ REGEXP * const rx, const I32 paren,
29 SV const * const value);
30 extern I32 my_reg_numbered_buff_length(pTHX_ REGEXP * const rx,
31 const SV * const sv, const I32 paren);
33 extern SV* my_reg_named_buff(pTHX_ REGEXP * const, SV * const, SV * const,
35 extern SV* my_reg_named_buff_iter(pTHX_ REGEXP * const rx,
36 const SV * const lastkey, const U32 flags);
38 extern SV* my_reg_qr_package(pTHX_ REGEXP * const rx);
39 #if defined(USE_ITHREADS)
40 extern void* my_regdupe (pTHX_ REGEXP * const r, CLONE_PARAMS *param);
43 EXTERN_C const struct regexp_engine my_reg_engine;
47 const struct regexp_engine my_reg_engine = {
53 my_reg_numbered_buff_fetch,
54 my_reg_numbered_buff_store,
55 my_reg_numbered_buff_length,
57 my_reg_named_buff_iter,
59 #if defined(USE_ITHREADS)
64 MODULE = re PACKAGE = re
69 PL_colorset = 0; /* Allow reinspection of ENV. */
70 /* PL_debug |= DEBUG_r_FLAG; */
71 XPUSHs(sv_2mortal(newSViv(PTR2IV(&my_reg_engine))));
83 Checks if a reference is a regex or not. If the parameter is
84 not a ref, or is not the result of a qr// then returns false
85 in scalar context and an empty list in list context.
86 Otherwise in list context it returns the pattern and the
87 modifiers, in scalar context it returns the pattern just as it
88 would if the qr// was stringified normally, regardless as
89 to the class of the variable and any strigification overloads
93 if ((re = SvRX(sv))) /* assign deliberate */
95 /* Housten, we have a regex! */
101 if ( GIMME_V == G_ARRAY ) {
103 we are in list context so stringify
104 the modifiers that apply. We ignore "negative
105 modifiers" in this scenario.
108 char *fptr = INT_PAT_MODS;
110 U16 match_flags = (U16)((re->extflags & PMf_COMPILETIME) >> 12);
112 while((ch = *fptr++)) {
113 if(match_flags & 1) {
114 reflags[left++] = ch;
119 pattern = sv_2mortal(newSVpvn(re->precomp,re->prelen));
120 if (re->extflags & RXf_UTF8) SvUTF8_on(pattern);
122 /* return the pattern and the modifiers */
124 XPUSHs(sv_2mortal(newSVpvn(reflags,left)));
127 /* Scalar, so use the string that Perl would return */
128 /* return the pattern in (?msix:..) format */
129 pattern = sv_2mortal(newSVpvn(re->wrapped,re->wraplen));
130 if (re->extflags & RXf_UTF8)
136 /* It ain't a regexp folks */
137 if ( GIMME_V == G_ARRAY ) {
138 /* return the empty list */
141 /* Because of the (?:..) wrapping involved in a
142 stringified pattern it is impossible to get a
143 result for a real regexp that would evaluate to
144 false. Therefore we can return PL_sv_no to signify
145 that the object is not a regex, this means that one
148 if (regex($might_be_a_regex) eq '(?:foo)') { }
150 and not worry about undefined values.
167 if ((re = SvRX(sv))) /* assign deliberate */
171 if (re->anchored_substr) {
172 an = newSVsv(re->anchored_substr);
173 } else if (re->anchored_utf8) {
174 an = newSVsv(re->anchored_utf8);
176 if (re->float_substr) {
177 fl = newSVsv(re->float_substr);
178 } else if (re->float_utf8) {
179 fl = newSVsv(re->float_utf8);