blob: 553e456ed5e53d6ba060345bffed182945d1473f (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
|
/*
* Secret Labs' Regular Expression Engine
*
* regular expression matching engine
*
* Copyright (c) 1997-2000 by Secret Labs AB. All rights reserved.
*
* See the _sre.c file for information on usage and redistribution.
*/
#ifndef SRE_INCLUDED
#define SRE_INCLUDED
#include "sre_constants.h"
/* size of a code word (must be unsigned short or larger) */
#define SRE_CODE unsigned short
typedef struct {
PyObject_VAR_HEAD
int groups;
PyObject* groupindex;
PyObject* indexgroup;
/* compatibility */
PyObject* pattern; /* pattern source (or None) */
int flags; /* flags used when compiling pattern source */
/* pattern code */
SRE_CODE code[1];
} PatternObject;
#define PatternObject_GetCode(o) (((PatternObject*)(o))->code)
typedef struct {
PyObject_VAR_HEAD
PyObject* string; /* link to the target string */
PyObject* regs; /* cached list of matching spans */
PatternObject* pattern; /* link to the regex (pattern) object */
int pos, endpos; /* current target slice */
int lastindex; /* last index marker seen by the engine (-1 if none) */
int groups; /* number of groups (start/end marks) */
int mark[1];
} MatchObject;
typedef unsigned int (*SRE_TOLOWER_HOOK)(unsigned int ch);
/* FIXME: <fl> shouldn't be a constant, really... */
#define SRE_MARK_SIZE 200
typedef struct SRE_REPEAT_T {
int count;
SRE_CODE* pattern; /* points to REPEAT operator arguments */
struct SRE_REPEAT_T *prev; /* points to previous repeat context */
} SRE_REPEAT;
typedef struct {
/* string pointers */
void* ptr; /* current position (also end of current slice) */
void* beginning; /* start of original string */
void* start; /* start of current slice */
void* end; /* end of original string */
/* attributes for the match object */
PyObject* string;
int pos, endpos;
/* character size */
int charsize;
/* registers */
int lastindex;
int lastmark;
void* mark[SRE_MARK_SIZE];
/* dynamically allocated stuff */
void** mark_stack;
int mark_stack_size;
int mark_stack_base;
SRE_REPEAT *repeat; /* current repeat context */
/* hooks */
SRE_TOLOWER_HOOK lower;
/* debugging */
int maxlevel;
} SRE_STATE;
typedef struct {
PyObject_HEAD
PyObject* pattern;
SRE_STATE state;
} ScannerObject;
#endif
|
