/* regexp.h
*
* Copyright (C) 1993, 1994, 1996, 1997, 1999, 2000, 2001, 2003,
- * 2005, 2006, 2007, by Larry Wall and others
+ * 2005, 2006, 2007, 2008 by Larry Wall and others
*
* You may distribute under the terms of either the GNU General Public
* License or the Artistic License, as specified in the README file.
/* during matching */ \
U32 lastparen; /* last open paren matched */ \
U32 lastcloseparen; /* last close paren matched */ \
- regexp_paren_pair *swap; /* Swap copy of *offs */ \
+ regexp_paren_pair *swap; /* Unused: 5.10.1 and later */ \
/* Array of offsets for (@-) and (@+) */ \
regexp_paren_pair *offs; \
/* saved or original string so \digit works forever. */ \
I32 sublen; /* Length of string pointed by subbeg */ \
/* Information about the match that isn't often used */ \
/* offset from wrapped to the start of precomp */ \
- unsigned pre_prefix:4; \
+ PERL_BITFIELD32 pre_prefix:4; \
/* number of eval groups in the pattern - for security checks */\
- unsigned seen_evals:28
+ PERL_BITFIELD32 seen_evals:28
typedef struct regexp {
_XPV_HEAD;
_REGEXP_COMMON;
} regexp;
-struct regexp_allocated {
- _XPV_ALLOCATED_HEAD;
- _XPVMG_HEAD;
- _REGEXP_COMMON;
-};
-
/* HV *paren_names; Optional hash of paren names
now stored in the IV union */
* Any regex engine implementation must be able to build one of these.
*/
typedef struct regexp_engine {
- REGEXP* (*comp) (pTHX_ const SV * const pattern, U32 flags);
+ REGEXP* (*comp) (pTHX_ SV * const pattern, U32 flags);
I32 (*exec) (pTHX_ REGEXP * const rx, char* stringarg, char* strend,
char* strbeg, I32 minend, SV* screamer,
void* data, U32 flags);
/* Whether this is being called from a re:: function */
#define RXapif_REGNAME 0x0400
#define RXapif_REGNAMES 0x0800
-#define RXapif_REGNAMES_COUNT 0x1000
+#define RXapif_REGNAMES_COUNT 0x1000
/*
=head1 REGEXP Functions
#define SvRXOK(sv) (Perl_get_re_arg(aTHX_ sv) ? TRUE : FALSE)
-/* Flags stored in regexp->extflags
+/* Flags stored in regexp->extflags
* These are used by code external to the regexp engine
*
* Note that flags starting with RXf_PMf_ have exact equivalents
* numerically here only for clarity.
*
* NOTE: if you modify any RXf flags you should run regen.pl or regcomp.pl
- * so that regnodes.h is updated with the changes.
+ * so that regnodes.h is updated with the changes.
*
*/
/*
* NOTE: if you modify any RXf flags you should run regen.pl or regcomp.pl
- * so that regnodes.h is updated with the changes.
+ * so that regnodes.h is updated with the changes.
*
*/
/*
* NOTE: if you modify any RXf flags you should run regen.pl or regcomp.pl
- * so that regnodes.h is updated with the changes.
+ * so that regnodes.h is updated with the changes.
*
*/
/* For source compatibility. We used to store these explicitly. */
#define RX_PRECOMP(prog) (RX_WRAPPED(prog) + ((struct regexp *)SvANY(prog))->pre_prefix)
+#define RX_PRECOMP_const(prog) (RX_WRAPPED_const(prog) + ((struct regexp *)SvANY(prog))->pre_prefix)
/* FIXME? Are we hardcoding too much here and constraining plugin extension
writers? Specifically, the value 1 assumes that the wrapped version always
has exactly one character at the end, a ')'. Will that always be true? */
#define RX_PRELEN(prog) (RX_WRAPLEN(prog) - ((struct regexp *)SvANY(prog))->pre_prefix - 1)
#define RX_WRAPPED(prog) SvPVX(prog)
+#define RX_WRAPPED_const(prog) SvPVX_const(prog)
#define RX_WRAPLEN(prog) SvCUR(prog)
#define RX_CHECK_SUBSTR(prog) (((struct regexp *)SvANY(prog))->check_substr)
-#define RX_EXTFLAGS(prog) RXp_EXTFLAGS((struct regexp *)SvANY(prog))
#define RX_REFCNT(prog) SvREFCNT(prog)
-#define RX_ENGINE(prog) (((struct regexp *)SvANY(prog))->engine)
-#define RX_SUBBEG(prog) (((struct regexp *)SvANY(prog))->subbeg)
-#define RX_OFFS(prog) (((struct regexp *)SvANY(prog))->offs)
-#define RX_NPARENS(prog) (((struct regexp *)SvANY(prog))->nparens)
+#if defined(__GNUC__) && !defined(PERL_GCC_BRACE_GROUPS_FORBIDDEN)
+# define RX_EXTFLAGS(prog) \
+ (*({ \
+ const REGEXP *const _rx_extflags = (prog); \
+ assert(SvTYPE(_rx_extflags) == SVt_REGEXP); \
+ &RXp_EXTFLAGS(SvANY(_rx_extflags)); \
+ }))
+# define RX_ENGINE(prog) \
+ (*({ \
+ const REGEXP *const _rx_engine = (prog); \
+ assert(SvTYPE(_rx_engine) == SVt_REGEXP); \
+ &SvANY(_rx_engine)->engine; \
+ }))
+# define RX_SUBBEG(prog) \
+ (*({ \
+ const REGEXP *const _rx_subbeg = (prog); \
+ assert(SvTYPE(_rx_subbeg) == SVt_REGEXP); \
+ &SvANY(_rx_subbeg)->subbeg; \
+ }))
+# define RX_OFFS(prog) \
+ (*({ \
+ const REGEXP *const _rx_offs = (prog); \
+ assert(SvTYPE(_rx_offs) == SVt_REGEXP); \
+ &SvANY(_rx_offs)->offs; \
+ }))
+# define RX_NPARENS(prog) \
+ (*({ \
+ const REGEXP *const _rx_nparens = (prog); \
+ assert(SvTYPE(_rx_nparens) == SVt_REGEXP); \
+ &SvANY(_rx_nparens)->nparens; \
+ }))
+#else
+# define RX_EXTFLAGS(prog) RXp_EXTFLAGS((struct regexp *)SvANY(prog))
+# define RX_ENGINE(prog) (((struct regexp *)SvANY(prog))->engine)
+# define RX_SUBBEG(prog) (((struct regexp *)SvANY(prog))->subbeg)
+# define RX_OFFS(prog) (((struct regexp *)SvANY(prog))->offs)
+# define RX_NPARENS(prog) (((struct regexp *)SvANY(prog))->nparens)
+#endif
#define RX_SUBLEN(prog) (((struct regexp *)SvANY(prog))->sublen)
-#define RX_SUBBEG(prog) (((struct regexp *)SvANY(prog))->subbeg)
#define RX_MINLEN(prog) (((struct regexp *)SvANY(prog))->minlen)
#define RX_MINLENRET(prog) (((struct regexp *)SvANY(prog))->minlenret)
#define RX_GOFS(prog) (((struct regexp *)SvANY(prog))->gofs)
/* Whether the pattern stored at RX_WRAPPED is in UTF-8 */
#define RX_UTF8(prog) SvUTF8(prog)
-
+
#define REXEC_COPY_STR 0x01 /* Need to copy the string. */
#define REXEC_CHECKED 0x02 /* check_substr already checked. */
#define REXEC_SCREAM 0x04 /* use scream table. */
#define REXEC_IGNOREPOS 0x08 /* \G matches at start. */
#define REXEC_NOT_FIRST 0x10 /* This is another iteration of //g. */
-#if defined(__GNUC__) && !defined(__STRICT_ANSI__) && !defined(PERL_GCC_PEDANTIC)
+#if defined(__GNUC__) && !defined(PERL_GCC_BRACE_GROUPS_FORBIDDEN)
# define ReREFCNT_inc(re) \
({ \
/* This is here to generate a casting warning if incorrect. */ \
- REGEXP *const zwapp = (re); \
- (REGEXP *) SvREFCNT_inc(zwapp); \
+ REGEXP *const _rerefcnt_inc = (re); \
+ assert(SvTYPE(_rerefcnt_inc) == SVt_REGEXP); \
+ SvREFCNT_inc(_rerefcnt_inc); \
+ _rerefcnt_inc; \
})
# define ReREFCNT_dec(re) \
({ \
/* This is here to generate a casting warning if incorrect. */ \
- REGEXP *const boff = (re); \
- SvREFCNT_dec(boff); \
+ REGEXP *const _rerefcnt_dec = (re); \
+ SvREFCNT_dec(_rerefcnt_dec); \
})
#else
# define ReREFCNT_dec(re) SvREFCNT_dec(re)
https://perl5.git.perl.org / perl5.git / blobdiff