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- /* regexp.h
- */
-
- /*
- * Definitions etc. for regexp(3) routines.
- *
- * Caveat: this is V8 regexp(3) [actually, a reimplementation thereof],
- * not the System V one.
- */
-
-
- struct regnode {
- U8 flags;
- U8 type;
- U16 next_off;
- };
-
- typedef struct regnode regnode;
-
- struct reg_substr_data;
-
- typedef struct regexp {
- 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. */
- 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 */
- U32 reganch; /* Internal use only +
- Tainted information used by regexec? */
- regnode program[1]; /* Unwarranted chumminess with compiler. */
- } regexp;
-
- #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_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
-
- /* 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 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)
- #define RX_MATCH_TAINTED_off(prog) ((prog)->reganch &= ~ROPT_TAINTED_SEEN)
- #define RX_MATCH_TAINTED_set(prog, t) ((t) \
- ? RX_MATCH_TAINTED_on(prog) \
- : RX_MATCH_TAINTED_off(prog))
-
- #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))
-
- #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
-
- struct re_scream_pos_data_s;
-