/* regexp.h
+ *
+ * Copyright (C) 1993, 1994, 1996, 1997, 1999, 2000, 2001, 2003,
+ * 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.
+ *
*/
/*
typedef struct regnode regnode;
-struct reg_data {
- U32 count;
- U8 *what;
- void* data[1];
-};
+struct reg_substr_data;
-struct reg_substr_datum {
- I32 min_offset;
- I32 max_offset;
- SV *substr;
-};
-
-struct reg_substr_data {
- struct reg_substr_datum data[3]; /* Actual array */
-};
+struct reg_data;
typedef struct regexp {
- I32 refcnt;
- char **startp;
- char **endp;
+ I32 *startp;
+ I32 *endp;
regnode *regstclass;
+ struct reg_substr_data *substrs;
+ char *precomp; /* pre-compilation regular expression */
+ 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;
I32 minlen; /* mininum possible length of $& */
I32 prelen; /* length of precomp */
U32 nparens; /* number of parentheses */
U32 lastparen; /* last paren matched */
- char *precomp; /* pre-compilation regular expression */
- char *subbase; /* saved string so \digit works forever */
- char *subbeg; /* same, but not responsible for allocation */
- char *subend; /* end of subbase */
+ U32 lastcloseparen; /* last paren matched */
U32 reganch; /* Internal use only +
Tainted information used by regexec? */
-#if 0
- SV *anchored_substr; /* Substring at fixed position wrt start. */
- I32 anchored_offset; /* Position of it. */
- SV *float_substr; /* Substring at variable position wrt start. */
- I32 float_min_offset; /* Minimal position of it. */
- I32 float_max_offset; /* Maximal position of it. */
- SV *check_substr; /* Substring to check before matching. */
- I32 check_offset_min; /* Offset of the above. */
- I32 check_offset_max; /* Offset of the above. */
-#else
- struct reg_substr_data *substrs;
-#endif
- struct reg_data *data; /* Additional data. */
regnode program[1]; /* Unwarranted chumminess with compiler. */
} regexp;
-#define anchored_substr substrs->data[0].substr
-#define anchored_offset substrs->data[0].min_offset
-#define float_substr substrs->data[1].substr
-#define float_min_offset substrs->data[1].min_offset
-#define float_max_offset substrs->data[1].max_offset
-#define check_substr substrs->data[2].substr
-#define check_offset_min substrs->data[2].min_offset
-#define check_offset_max substrs->data[2].max_offset
-
-#define ROPT_ANCH (ROPT_ANCH_BOL|ROPT_ANCH_MBOL|ROPT_ANCH_GPOS)
-#define ROPT_ANCH_SINGLE (ROPT_ANCH_BOL|ROPT_ANCH_GPOS)
+#define ROPT_ANCH (ROPT_ANCH_BOL|ROPT_ANCH_MBOL|ROPT_ANCH_GPOS|ROPT_ANCH_SBOL)
+#define ROPT_ANCH_SINGLE (ROPT_ANCH_SBOL|ROPT_ANCH_GPOS)
#define ROPT_ANCH_BOL 0x00001
#define ROPT_ANCH_MBOL 0x00002
-#define ROPT_ANCH_GPOS 0x00004
-#define ROPT_SKIP 0x00008
-#define ROPT_IMPLICIT 0x00010 /* Converted .* to ^.* */
-#define ROPT_NOSCAN 0x00020 /* Check-string always at start. */
-#define ROPT_GPOS_SEEN 0x00040
-#define ROPT_CHECK_ALL 0x00080
-#define ROPT_LOOKBEHIND_SEEN 0x00100
-#define ROPT_EVAL_SEEN 0x00200
-#define ROPT_TAINTED_SEEN 0x00400
-#define ROPT_ANCH_SBOL 0x00800
+#define ROPT_ANCH_SBOL 0x00004
+#define ROPT_ANCH_GPOS 0x00008
+#define ROPT_SKIP 0x00010
+#define ROPT_IMPLICIT 0x00020 /* Converted .* to ^.* */
+#define ROPT_NOSCAN 0x00040 /* Check-string always at start. */
+#define ROPT_GPOS_SEEN 0x00080
+#define ROPT_CHECK_ALL 0x00100
+#define ROPT_LOOKBEHIND_SEEN 0x00200
+#define ROPT_EVAL_SEEN 0x00400
+#define ROPT_CANY_SEEN 0x00800
+#define ROPT_SANY_SEEN ROPT_CANY_SEEN /* src bckwrd cmpt */
/* 0xf800 of reganch is used by PMf_COMPILETIME */
#define ROPT_UTF8 0x10000
#define ROPT_NAUGHTY 0x20000 /* how exponential is this pattern? */
+#define ROPT_COPY_DONE 0x40000 /* subbeg is a copy of the string */
+#define ROPT_TAINTED_SEEN 0x80000
+#define ROPT_MATCH_UTF8 0x10000000 /* subbeg is utf-8 */
+
+#define RE_USE_INTUIT_NOML 0x0100000 /* Best to intuit before matching */
+#define RE_USE_INTUIT_ML 0x0200000
+#define REINT_AUTORITATIVE_NOML 0x0400000 /* Can trust a positive answer */
+#define REINT_AUTORITATIVE_ML 0x0800000
+#define REINT_ONCE_NOML 0x1000000 /* Intuit can succed once only. */
+#define REINT_ONCE_ML 0x2000000
+#define RE_INTUIT_ONECHAR 0x4000000
+#define RE_INTUIT_TAIL 0x8000000
+
+#define RE_USE_INTUIT (RE_USE_INTUIT_NOML|RE_USE_INTUIT_ML)
+#define REINT_AUTORITATIVE (REINT_AUTORITATIVE_NOML|REINT_AUTORITATIVE_ML)
+#define REINT_ONCE (REINT_ONCE_NOML|REINT_ONCE_ML)
#define RX_MATCH_TAINTED(prog) ((prog)->reganch & ROPT_TAINTED_SEEN)
#define RX_MATCH_TAINTED_on(prog) ((prog)->reganch |= ROPT_TAINTED_SEEN)
? RX_MATCH_TAINTED_on(prog) \
: RX_MATCH_TAINTED_off(prog))
-#define REXEC_COPY_STR 1 /* Need to copy the string. */
-#define REXEC_CHECKED 2 /* check_substr already checked. */
-#define REXEC_SCREAM 4 /* use scream table. */
-#define REXEC_IGNOREPOS 8 /* \G matches at start. */
+#define RX_MATCH_COPIED(prog) ((prog)->reganch & ROPT_COPY_DONE)
+#define RX_MATCH_COPIED_on(prog) ((prog)->reganch |= ROPT_COPY_DONE)
+#define RX_MATCH_COPIED_off(prog) ((prog)->reganch &= ~ROPT_COPY_DONE)
+#define RX_MATCH_COPIED_set(prog,t) ((t) \
+ ? 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)
+#define RX_MATCH_UTF8_set(prog, t) ((t) \
+ ? (RX_MATCH_UTF8_on(prog), (PL_reg_match_utf8 = 1)) \
+ : (RX_MATCH_UTF8_off(prog), (PL_reg_match_utf8 = 0)))
+
+#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. */
+#define REXEC_ML 0x20 /* $* was set. */
+
+#define ReREFCNT_inc(re) ((void)(re && re->refcnt++), re)
+#define ReREFCNT_dec(re) CALLREGFREE(aTHX_ re)
+
+#define FBMcf_TAIL_DOLLAR 1
+#define FBMcf_TAIL_DOLLARM 2
+#define FBMcf_TAIL_Z 4
+#define FBMcf_TAIL_z 8
+#define FBMcf_TAIL (FBMcf_TAIL_DOLLAR|FBMcf_TAIL_DOLLARM|FBMcf_TAIL_Z|FBMcf_TAIL_z)
+
+#define FBMrf_MULTILINE 1
-#define ReREFCNT_inc(re) ((re && re->refcnt++), re)
-#define ReREFCNT_dec(re) pregfree(re)
+struct re_scream_pos_data_s;
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