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[win32] Fixup the places where the automatic merge got it wrong.
[perl5.git] / regexp.h
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1/* regexp.h
2 */
3
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4/*
5 * Definitions etc. for regexp(3) routines.
6 *
7 * Caveat: this is V8 regexp(3) [actually, a reimplementation thereof],
8 * not the System V one.
9 */
10
378cc40b 11
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12struct regnode {
13 U8 flags;
14 U8 type;
15 U16 next_off;
16};
17
18typedef struct regnode regnode;
19
378cc40b 20typedef struct regexp {
c277df42 21 I32 refcnt;
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22 char **startp;
23 char **endp;
c277df42 24 regnode *regstclass;
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25 I32 minlen; /* mininum possible length of $& */
26 I32 prelen; /* length of precomp */
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27 U32 nparens; /* number of parentheses */
28 U32 lastparen; /* last paren matched */
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29 char *precomp; /* pre-compilation regular expression */
30 char *subbase; /* saved string so \digit works forever */
9ef589d8 31 char *subbeg; /* same, but not responsible for allocation */
00bf170e 32 char *subend; /* end of subbase */
a0d0e21e 33 U16 naughty; /* how exponential is this pattern? */
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34 U16 reganch; /* Internal use only +
35 Tainted information used by regexec? */
36 SV *anchored_substr; /* Substring at fixed position wrt start. */
37 I32 anchored_offset; /* Position of it. */
38 SV *float_substr; /* Substring at variable position wrt start. */
39 I32 float_min_offset; /* Minimal position of it. */
40 I32 float_max_offset; /* Maximal position of it. */
41 SV *check_substr; /* Substring to check before matching. */
42 I32 check_offset_min; /* Offset of the above. */
43 I32 check_offset_max; /* Offset of the above. */
44 struct reg_data *data; /* Additional data. */
45 regnode program[1]; /* Unwarranted chumminess with compiler. */
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46} regexp;
47
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48#define ROPT_ANCH (ROPT_ANCH_BOL|ROPT_ANCH_MBOL|ROPT_ANCH_GPOS)
49#define ROPT_ANCH_SINGLE (ROPT_ANCH_BOL|ROPT_ANCH_GPOS)
50#define ROPT_ANCH_BOL 1
51#define ROPT_ANCH_MBOL 2
52#define ROPT_ANCH_GPOS 4
53#define ROPT_SKIP 8
54#define ROPT_IMPLICIT 0x10 /* Converted .* to ^.* */
55#define ROPT_NOSCAN 0x20 /* Check-string always at start. */
56#define ROPT_GPOS_SEEN 0x40
57#define ROPT_CHECK_ALL 0x80
58#define ROPT_LOOKBEHIND_SEEN 0x100
59
60#define ROPT_TAINTED_SEEN 0x8000
61
62#define RX_MATCH_TAINTED(prog) ((prog)->reganch & ROPT_TAINTED_SEEN)
63#define RX_MATCH_TAINTED_SET(prog, t) ((t) \
64 ? ((prog)->reganch |= ROPT_TAINTED_SEEN) \
65 : ((prog)->reganch &= ~ROPT_TAINTED_SEEN))
66
67#define REXEC_COPY_STR 1 /* Need to copy the string. */
68#define REXEC_CHECKED 2 /* check_substr already checked. */
69
70#define ReREFCNT_inc(re) ((re && re->refcnt++), re)
71#define ReREFCNT_dec(re) pregfree(re)