1#ifndef GREP_H
2#define GREP_H
3#include "color.h"
4
5enum grep_pat_token {
6 GREP_PATTERN,
7 GREP_PATTERN_HEAD,
8 GREP_PATTERN_BODY,
9 GREP_AND,
10 GREP_OPEN_PAREN,
11 GREP_CLOSE_PAREN,
12 GREP_NOT,
13 GREP_OR,
14};
15
16enum grep_context {
17 GREP_CONTEXT_HEAD,
18 GREP_CONTEXT_BODY,
19};
20
21enum grep_header_field {
22 GREP_HEADER_AUTHOR = 0,
23 GREP_HEADER_COMMITTER,
24};
25
26struct grep_pat {
27 struct grep_pat *next;
28 const char *origin;
29 int no;
30 enum grep_pat_token token;
31 const char *pattern;
32 enum grep_header_field field;
33 regex_t regexp;
34 unsigned fixed:1;
35 unsigned word_regexp:1;
36};
37
38enum grep_expr_node {
39 GREP_NODE_ATOM,
40 GREP_NODE_NOT,
41 GREP_NODE_AND,
42 GREP_NODE_OR,
43};
44
45struct grep_expr {
46 enum grep_expr_node node;
47 unsigned hit;
48 union {
49 struct grep_pat *atom;
50 struct grep_expr *unary;
51 struct {
52 struct grep_expr *left;
53 struct grep_expr *right;
54 } binary;
55 } u;
56};
57
58struct grep_opt {
59 struct grep_pat *pattern_list;
60 struct grep_pat **pattern_tail;
61 struct grep_expr *pattern_expression;
62 int prefix_length;
63 regex_t regexp;
64 unsigned linenum:1;
65 unsigned invert:1;
66 unsigned status_only:1;
67 unsigned name_only:1;
68 unsigned unmatch_name_only:1;
69 unsigned count:1;
70 unsigned word_regexp:1;
71 unsigned fixed:1;
72 unsigned all_match:1;
73#define GREP_BINARY_DEFAULT 0
74#define GREP_BINARY_NOMATCH 1
75#define GREP_BINARY_TEXT 2
76 unsigned binary:2;
77 unsigned extended:1;
78 unsigned relative:1;
79 unsigned pathname:1;
80 unsigned null_following_name:1;
81 int color;
82 char color_match[COLOR_MAXLEN];
83 const char *color_external;
84 int regflags;
85 unsigned pre_context;
86 unsigned post_context;
87};
88
89extern void append_grep_pattern(struct grep_opt *opt, const char *pat, const char *origin, int no, enum grep_pat_token t);
90extern void append_header_grep_pattern(struct grep_opt *, enum grep_header_field, const char *);
91extern void compile_grep_patterns(struct grep_opt *opt);
92extern void free_grep_patterns(struct grep_opt *opt);
93extern int grep_buffer(struct grep_opt *opt, const char *name, char *buf, unsigned long size);
94
95#endif