/* regexp.h
*
- * Copyright (c) 1997-2002, Larry Wall
+ * Copyright (c) 1997-2003, Larry Wall
*
* You may distribute under the terms of either the GNU General Public
* License or the Artistic License, as specified in the README file.
struct reg_data *data; /* Additional data. */
char *subbeg; /* saved or original string
so \digit works forever. */
+#ifdef PERL_COPY_ON_WRITE
+ SV *saved_copy; /* If non-NULL, SV which is COW from original */
+#endif
U32 *offsets; /* offset annotations 20001228 MJD */
I32 sublen; /* Length of string pointed by subbeg */
I32 refcnt;
? RX_MATCH_COPIED_on(prog) \
: RX_MATCH_COPIED_off(prog))
+#ifdef PERL_COPY_ON_WRITE
+#define RX_MATCH_COPY_FREE(rx) \
+ STMT_START {if (rx->saved_copy) { \
+ SV_CHECK_THINKFIRST_COW_DROP(rx->saved_copy); \
+ } \
+ if (RX_MATCH_COPIED(rx)) { \
+ Safefree(rx->subbeg); \
+ RX_MATCH_COPIED_off(rx); \
+ }} STMT_END
+#else
+#define RX_MATCH_COPY_FREE(rx) \
+ STMT_START {if (RX_MATCH_COPIED(rx)) { \
+ Safefree(rx->subbeg); \
+ RX_MATCH_COPIED_off(rx); \
+ }} STMT_END
+#endif
+
#define RX_MATCH_UTF8(prog) ((prog)->reganch & ROPT_MATCH_UTF8)
#define RX_MATCH_UTF8_on(prog) ((prog)->reganch |= ROPT_MATCH_UTF8)
#define RX_MATCH_UTF8_off(prog) ((prog)->reganch &= ~ROPT_MATCH_UTF8)