Ultrix mmap tidbit.

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

diff --git a/regcomp.c b/regcomp.c
index b930e8a..61c3e0d 100644 (file)
--- a/regcomp.c
+++ b/regcomp.c
@@ -146,6 +146,8 @@ static void regtail _((regnode *, regnode *));
 static char* regwhite _((char *, char *));
 static char* nextchar _((void));
 static void re_croak2 _((const char* pat1,const char* pat2,...)) __attribute__((noreturn));
+static char* regpposixcc _((I32 value));
+static void clear_re _((void *r));
 #endif
 
 /* Length of a variant. */
@@ -206,6 +208,12 @@ static scan_data_t zero_scan_data = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 };
 #define CHR_DIST(a,b) (UTF ? utf8_distance(a,b) : a - b)
 
 STATIC void
+clear_re(void *r)
+{
+    ReREFCNT_dec((regexp *)r);
+}
+
+STATIC void
 scan_commit(scan_data_t *data)
 {
     dTHR;
@@ -867,7 +875,12 @@ pregcomp(char *exp, char *xend, PMOP *pm)
     r->prelen = xend - exp;
     r->precomp = PL_regprecomp;
     r->subbeg = r->subbase = NULL;
-    r->nparens = PL_regnpar - 1;               /* set early to validate backrefs */
+    r->nparens = PL_regnpar - 1;       /* set early to validate backrefs */
+
+    r->substrs = 0;                    /* Useful during FAIL. */
+    r->startp = 0;                     /* Useful during FAIL. */
+    r->endp = 0;                       /* Useful during FAIL. */
+
     PL_regcomp_rx = r;
 
     /* Second pass: emit code. */
@@ -1764,6 +1777,7 @@ tryagain:
            break;
        case 'b':
            PL_seen_zerolen++;
+           PL_regseen |= REG_SEEN_LOOKBEHIND;
            ret = reg_node(
                UTF
                    ? (LOC ? BOUNDLUTF8 : BOUNDUTF8)
@@ -1775,6 +1789,7 @@ tryagain:
            break;
        case 'B':
            PL_seen_zerolen++;
+           PL_regseen |= REG_SEEN_LOOKBEHIND;
            ret = reg_node(
                UTF
                    ? (LOC ? NBOUNDLUTF8 : NBOUNDUTF8)