111 lines
3.7 KiB
C
111 lines
3.7 KiB
C
/* 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;
|
|
|
|
struct reg_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;
|