/* regexp.h
*
* Copyright (C) 1993, 1994, 1996, 1997, 1999, 2000, 2001, 2003,
- * by Larry Wall and others
+ * 2005, 2006 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.
* not the System V one.
*/
#ifndef PLUGGABLE_RE_EXTENSION
-/* we don't want to include this stuff if we are inside Nicholas'
- * pluggable regex engine code */
+/* we don't want to include this stuff if we are inside of
+ an external regex engine based on the core one - like re 'debug'*/
struct regnode {
U8 flags;
struct regexp_engine;
-typedef struct regexp_paren_ofs {
- I32 *startp;
- I32 *endp;
-} regexp_paren_ofs;
+struct reg_substr_datum {
+ I32 min_offset;
+ I32 max_offset;
+ SV *substr; /* non-utf8 variant */
+ SV *utf8_substr; /* utf8 variant */
+ I32 end_shift;
+};
+struct reg_substr_data {
+ struct reg_substr_datum data[3]; /* Actual array */
+};
#ifdef PERL_OLD_COPY_ON_WRITE
#define SV_SAVED_COPY SV *saved_copy; /* If non-NULL, SV which is COW from original */
I32 refcnt; /* Refcount of this regexp */
} regexp;
-
-typedef struct regexp_internal {
- regexp_paren_ofs *swap; /* Swap copy of *startp / *endp */
- U32 *offsets; /* offset annotations 20001228 MJD
- data about mapping the program to the
- string*/
- regnode *regstclass; /* Optional startclass as identified or constructed
- by the optimiser */
- struct reg_data *data; /* Additional miscellaneous data used by the program.
- Used to make it easier to clone and free arbitrary
- data that the regops need. Often the ARG field of
- a regop is an index into this structure */
- regnode program[1]; /* Unwarranted chumminess with compiler. */
-} regexp_internal;
-
-#define RXi_SET(x,y) (x)->pprivate = (void*)(y)
-#define RXi_GET(x) ((regexp_internal *)((x)->pprivate))
-#define RXi_GET_DECL(r,ri) regexp_internal *ri = RXi_GET(r)
-
+/* used for high speed searches */
typedef struct re_scream_pos_data_s
{
char **scream_olds; /* match pos */
I32 *scream_pos; /* Internal iterator of scream. */
} re_scream_pos_data;
+/* regexp_engine structure. This is the dispatch table for regexes.
+ * Any regex engine implementation must be able to build one of these.
+ */
typedef struct regexp_engine {
regexp* (*comp) (pTHX_ char* exp, char* xend, PMOP* pm);
- regexp* (*compile) (pTHX_ char *exp, char *xend, PMOP *pm);
I32 (*exec) (pTHX_ regexp* prog, char* stringarg, char* strend,
char* strbeg, I32 minend, SV* screamer,
void* data, U32 flags);
#endif
} regexp_engine;
-/*
- * Flags stored in regexp->intflags
- * These are used only internally to the regexp engine
- */
-#define PREGf_SKIP 0x00000001
-#define PREGf_IMPLICIT 0x00000002 /* Converted .* to ^.* */
-#define PREGf_NAUGHTY 0x00000004 /* how exponential is this pattern? */
-#define PREGf_VERBARG_SEEN 0x00000008
-#define PREGf_CUTGROUP_SEEN 0x00000010
-
-
/* 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
+ * stored in op_pmflags and which are defined in op.h, they are defined
+ * numerically here only for clarity.
*/
/* Anchor and GPOS related stuff */
#define RXf_ANCH_GPOS 0x00000008
#define RXf_GPOS_SEEN 0x00000010
#define RXf_GPOS_FLOAT 0x00000020
-/* five bits here */
+/* two bits here */
#define RXf_ANCH (RXf_ANCH_BOL|RXf_ANCH_MBOL|RXf_ANCH_GPOS|RXf_ANCH_SBOL)
#define RXf_GPOS_CHECK (RXf_GPOS_SEEN|RXf_ANCH_GPOS)
-#define RXf_ANCH_SINGLE (RXf_ANCH_SBOL|RXf_ANCH_GPOS)
-/*
- * 0xF800 of extflags is used by PMf_COMPILETIME
- * These are the regex equivelent of the PMf_xyz stuff defined
- * in op.h
- */
-#define RXf_PMf_LOCALE 0x00000800
-#define RXf_PMf_MULTILINE 0x00001000
-#define RXf_PMf_SINGLELINE 0x00002000
-#define RXf_PMf_FOLD 0x00004000
-#define RXf_PMf_EXTENDED 0x00008000
-#define RXf_PMf_COMPILETIME (RXf_PMf_MULTILINE|RXf_PMf_SINGLELINE|RXf_PMf_LOCALE|RXf_PMf_FOLD|RXf_PMf_EXTENDED)
+#define RXf_ANCH_SINGLE (RXf_ANCH_SBOL|RXf_ANCH_GPOS)
+
+/* Flags indicating special patterns */
+#define RXf_START_ONLY 0x00000200 /* Pattern is /^/ */
+#define RXf_WHITE 0x00000400 /* Pattern is /\s+/ */
+
+/* 0xF800 of extflags is used by (RXf_)PMf_COMPILETIME */
+#define RXf_PMf_LOCALE 0x00000800 /* use locale */
+#define RXf_PMf_MULTILINE 0x00001000 /* /m */
+#define RXf_PMf_SINGLELINE 0x00002000 /* /s */
+#define RXf_PMf_FOLD 0x00004000 /* /i */
+#define RXf_PMf_EXTENDED 0x00008000 /* /x */
+#define RXf_PMf_KEEPCOPY 0x00010000 /* /k */
+/* these flags are transfered from the PMOP->op_pmflags member during compilation */
+#define RXf_PMf_STD_PMMOD (RXf_PMf_MULTILINE|RXf_PMf_SINGLELINE|RXf_PMf_FOLD|RXf_PMf_EXTENDED)
+#define RXf_PMf_COMPILETIME (RXf_PMf_MULTILINE|RXf_PMf_SINGLELINE|RXf_PMf_LOCALE|RXf_PMf_FOLD|RXf_PMf_EXTENDED|RXf_PMf_KEEPCOPY)
+
+#define CASE_STD_PMMOD_FLAGS_PARSE_SET(pmfl) \
+ case IGNORE_PAT_MOD: *(pmfl) |= RXf_PMf_FOLD; break; \
+ case MULTILINE_PAT_MOD: *(pmfl) |= RXf_PMf_MULTILINE; break; \
+ case SINGLE_PAT_MOD: *(pmfl) |= RXf_PMf_SINGLELINE; break; \
+ case XTENDED_PAT_MOD: *(pmfl) |= RXf_PMf_EXTENDED; break
/* What we have seen */
-/* one bit here */
#define RXf_LOOKBEHIND_SEEN 0x00020000
#define RXf_EVAL_SEEN 0x00040000
#define RXf_CANY_SEEN 0x00080000
SV* mark_name;
char *mark_loc;
} mark;
+
+ struct {
+ int val;
+ } keeper;
} u;
} regmatch_state;
#define SAVESTACK_ALLOC_FOR_RE_SAVE_STATE \
(1 + ((sizeof(struct re_save_state) - 1) / sizeof(*PL_savestack)))
+
/*
* Local variables:
* c-indentation-style: bsd
projects / p5sagit/p5-mst-13.2.git / blobdiff