Merge branch 'maint'
[git/jrn.git] / grep.h
blob5102ce335d29811dd448e173f2e90e8d03b5f011
1 #ifndef GREP_H
2 #define GREP_H
4 enum grep_pat_token {
5 GREP_PATTERN,
6 GREP_PATTERN_HEAD,
7 GREP_PATTERN_BODY,
8 GREP_AND,
9 GREP_OPEN_PAREN,
10 GREP_CLOSE_PAREN,
11 GREP_NOT,
12 GREP_OR,
15 enum grep_context {
16 GREP_CONTEXT_HEAD,
17 GREP_CONTEXT_BODY,
20 enum grep_header_field {
21 GREP_HEADER_AUTHOR = 0,
22 GREP_HEADER_COMMITTER,
25 struct grep_pat {
26 struct grep_pat *next;
27 const char *origin;
28 int no;
29 enum grep_pat_token token;
30 const char *pattern;
31 enum grep_header_field field;
32 regex_t regexp;
33 unsigned fixed:1;
36 enum grep_expr_node {
37 GREP_NODE_ATOM,
38 GREP_NODE_NOT,
39 GREP_NODE_AND,
40 GREP_NODE_OR,
43 struct grep_expr {
44 enum grep_expr_node node;
45 unsigned hit;
46 union {
47 struct grep_pat *atom;
48 struct grep_expr *unary;
49 struct {
50 struct grep_expr *left;
51 struct grep_expr *right;
52 } binary;
53 } u;
56 struct grep_opt {
57 struct grep_pat *pattern_list;
58 struct grep_pat **pattern_tail;
59 struct grep_expr *pattern_expression;
60 int prefix_length;
61 regex_t regexp;
62 unsigned linenum:1;
63 unsigned invert:1;
64 unsigned status_only:1;
65 unsigned name_only:1;
66 unsigned unmatch_name_only:1;
67 unsigned count:1;
68 unsigned word_regexp:1;
69 unsigned fixed:1;
70 unsigned all_match:1;
71 #define GREP_BINARY_DEFAULT 0
72 #define GREP_BINARY_NOMATCH 1
73 #define GREP_BINARY_TEXT 2
74 unsigned binary:2;
75 unsigned extended:1;
76 unsigned relative:1;
77 unsigned pathname:1;
78 unsigned null_following_name:1;
79 int regflags;
80 unsigned pre_context;
81 unsigned post_context;
84 extern void append_grep_pattern(struct grep_opt *opt, const char *pat, const char *origin, int no, enum grep_pat_token t);
85 extern void append_header_grep_pattern(struct grep_opt *, enum grep_header_field, const char *);
86 extern void compile_grep_patterns(struct grep_opt *opt);
87 extern void free_grep_patterns(struct grep_opt *opt);
88 extern int grep_buffer(struct grep_opt *opt, const char *name, char *buf, unsigned long size);
90 #endif