Plug a memory leak (noticed by Yves)

[p5sagit/p5-mst-13.2.git] / regexec.c

diff --git a/regexec.c b/regexec.c
index fa853a4..a5f6bb5 100644 (file)
--- a/regexec.c
+++ b/regexec.c
@@ -308,7 +308,7 @@ S_regcppop(pTHX_ const regexp *rex)
  - pregexec - match a regexp against a string
  */
 I32
-Perl_pregexec(pTHX_ register regexp *prog, char *stringarg, register char *strend,
+Perl_pregexec(pTHX_ REGEXP * const prog, char* stringarg, register char *strend,
         char *strbeg, I32 minend, SV *screamer, U32 nosave)
 /* strend: pointer to null at end of string */
 /* strbeg: real beginning of string */
@@ -372,8 +372,8 @@ Perl_pregexec(pTHX_ register regexp *prog, char *stringarg, register char *stren
    deleted from the finite automaton. */
 
 char *
-Perl_re_intuit_start(pTHX_ regexp *prog, SV *sv, char *strpos,
-                    char *strend, U32 flags, re_scream_pos_data *data)
+Perl_re_intuit_start(pTHX_ REGEXP * const prog, SV *sv, char *strpos,
+                    char *strend, const U32 flags, re_scream_pos_data *data)
 {
     dVAR;
     register I32 start_shift = 0;
@@ -1705,7 +1705,7 @@ S_swap_match_buff (pTHX_ regexp *prog) {
  - regexec_flags - match a regexp against a string
  */
 I32
-Perl_regexec_flags(pTHX_ register regexp *prog, char *stringarg, register char *strend,
+Perl_regexec_flags(pTHX_ REGEXP * const prog, char *stringarg, register char *strend,
              char *strbeg, I32 minend, SV *sv, void *data, U32 flags)
 /* strend: pointer to null at end of string */
 /* strbeg: real beginning of string */
@@ -1845,7 +1845,7 @@ Perl_regexec_flags(pTHX_ register regexp *prog, char *stringarg, register char *
                    if (regtry(&reginfo, &s))
                        goto got_it;
                  after_try:
-                   if (s >= end)
+                   if (s > end)
                        goto phooey;
                    if (prog->extflags & RXf_USE_INTUIT) {
                        s = re_intuit_start(prog, sv, s + 1, strend, flags, NULL);
@@ -3698,13 +3698,11 @@ S_regmatch(pTHX_ regmatch_info *reginfo, regnode *prog)
                        re = reg_temp_copy((regexp *)mg->mg_obj); /*XXX:dmq*/
                    }
                    else {
-                       STRLEN len;
-                       const char * const t = SvPV_const(ret, len);
                        U32 pm_flags = 0;
                        const I32 osize = PL_regsize;
 
                        if (DO_UTF8(ret)) pm_flags |= RXf_UTF8;
-                       re = CALLREGCOMP((char*)t, (char*)t + len, pm_flags);
+                       re = CALLREGCOMP(ret, pm_flags);
                        if (!(SvFLAGS(ret)
                              & (SVs_TEMP | SVs_PADTMP | SVf_READONLY
                                | SVs_GMG)))
@@ -5006,7 +5004,27 @@ NULL
             sayNO;
             /* NOTREACHED */
 #undef ST
-
+        case FOLDCHAR:
+            n = ARG(scan);
+            if ( n == (U32)what_len_TRICKYFOLD(locinput,do_utf8,ln) ) {
+                locinput += ln;
+            } else if ( 0xDF == n && !do_utf8 && !UTF ) {
+                sayNO;
+            } else  {
+                U8 folded[UTF8_MAXBYTES_CASE+1];
+                STRLEN foldlen;
+                const char * const l = locinput;
+                char *e = PL_regeol;
+                to_uni_fold(n, folded, &foldlen);
+
+               if (ibcmp_utf8((const char*) folded, 0,  foldlen, 1,
+                              l, &e, 0,  do_utf8)) {
+                        sayNO;
+                }
+                locinput = e;
+            } 
+            nextchr = UCHARAT(locinput);  
+            break;
         case LNBREAK:
             if ((n=is_LNBREAK(locinput,do_utf8))) {
                 locinput += n;