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[git/git.git] / grep.h
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1#ifndef GREP_H
2#define GREP_H
7e8f59d5 3#include "color.h"
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4#ifdef USE_LIBPCRE
5#include <pcre.h>
6#else
7typedef int pcre;
8typedef int pcre_extra;
9#endif
9eceddee 10#include "kwset.h"
0579f91d 11#include "thread-utils.h"
94ad9d9e 12#include "userdiff.h"
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13
14enum grep_pat_token {
15 GREP_PATTERN,
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16 GREP_PATTERN_HEAD,
17 GREP_PATTERN_BODY,
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18 GREP_AND,
19 GREP_OPEN_PAREN,
20 GREP_CLOSE_PAREN,
21 GREP_NOT,
4b05548f 22 GREP_OR
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23};
24
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25enum grep_context {
26 GREP_CONTEXT_HEAD,
4b05548f 27 GREP_CONTEXT_BODY
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28};
29
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30enum grep_header_field {
31 GREP_HEADER_AUTHOR = 0,
4b05548f 32 GREP_HEADER_COMMITTER
a4d7d2c6 33};
5aaeb733 34#define GREP_HEADER_FIELD_MAX (GREP_HEADER_COMMITTER + 1)
a4d7d2c6 35
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36struct grep_pat {
37 struct grep_pat *next;
38 const char *origin;
39 int no;
40 enum grep_pat_token token;
526a858a 41 char *pattern;
ed40a095 42 size_t patternlen;
a4d7d2c6 43 enum grep_header_field field;
83b5d2f5 44 regex_t regexp;
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45 pcre *pcre_regexp;
46 pcre_extra *pcre_extra_info;
9eceddee 47 kwset_t kws;
c822255c 48 unsigned fixed:1;
5183bf67 49 unsigned ignore_case:1;
d7eb527d 50 unsigned word_regexp:1;
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51};
52
53enum grep_expr_node {
54 GREP_NODE_ATOM,
55 GREP_NODE_NOT,
56 GREP_NODE_AND,
5aaeb733 57 GREP_NODE_TRUE,
4b05548f 58 GREP_NODE_OR
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59};
60
61struct grep_expr {
62 enum grep_expr_node node;
0ab7befa 63 unsigned hit;
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64 union {
65 struct grep_pat *atom;
66 struct grep_expr *unary;
67 struct {
68 struct grep_expr *left;
69 struct grep_expr *right;
70 } binary;
71 } u;
72};
73
74struct grep_opt {
75 struct grep_pat *pattern_list;
76 struct grep_pat **pattern_tail;
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77 struct grep_pat *header_list;
78 struct grep_pat **header_tail;
83b5d2f5 79 struct grep_expr *pattern_expression;
493b7a08 80 const char *prefix;
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81 int prefix_length;
82 regex_t regexp;
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83 int linenum;
84 int invert;
5183bf67 85 int ignore_case;
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86 int status_only;
87 int name_only;
88 int unmatch_name_only;
89 int count;
90 int word_regexp;
91 int fixed;
92 int all_match;
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93#define GREP_BINARY_DEFAULT 0
94#define GREP_BINARY_NOMATCH 1
95#define GREP_BINARY_TEXT 2
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96 int binary;
97 int extended;
63e7e9d8 98 int pcre;
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99 int relative;
100 int pathname;
101 int null_following_name;
7e8f59d5 102 int color;
a91f453f 103 int max_depth;
2944e4e6 104 int funcname;
ba8ea749 105 int funcbody;
00588bb5 106 char color_context[COLOR_MAXLEN];
55f638bd 107 char color_filename[COLOR_MAXLEN];
00588bb5 108 char color_function[COLOR_MAXLEN];
55f638bd 109 char color_lineno[COLOR_MAXLEN];
7e8f59d5 110 char color_match[COLOR_MAXLEN];
00588bb5 111 char color_selected[COLOR_MAXLEN];
55f638bd 112 char color_sep[COLOR_MAXLEN];
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113 int regflags;
114 unsigned pre_context;
115 unsigned post_context;
5dd06d38 116 unsigned last_shown;
046802d0 117 int show_hunk_mark;
a8f0e764 118 int file_break;
1d84f72e 119 int heading;
60ecac98 120 void *priv;
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121
122 void (*output)(struct grep_opt *opt, const void *data, size_t size);
123 void *output_priv;
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124};
125
ed40a095 126extern void append_grep_pat(struct grep_opt *opt, const char *pat, size_t patlen, const char *origin, int no, enum grep_pat_token t);
83b5d2f5 127extern void append_grep_pattern(struct grep_opt *opt, const char *pat, const char *origin, int no, enum grep_pat_token t);
a4d7d2c6 128extern void append_header_grep_pattern(struct grep_opt *, enum grep_header_field, const char *);
83b5d2f5 129extern void compile_grep_patterns(struct grep_opt *opt);
b48fb5b6 130extern void free_grep_patterns(struct grep_opt *opt);
c876d6da 131extern int grep_buffer(struct grep_opt *opt, char *buf, unsigned long size);
83b5d2f5 132
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133struct grep_source {
134 char *name;
135
136 enum grep_source_type {
137 GREP_SOURCE_SHA1,
138 GREP_SOURCE_FILE,
139 GREP_SOURCE_BUF,
140 } type;
141 void *identifier;
142
143 char *buf;
144 unsigned long size;
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145
146 struct userdiff_driver *driver;
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147};
148
149void grep_source_init(struct grep_source *gs, enum grep_source_type type,
150 const char *name, const void *identifier);
151int grep_source_load(struct grep_source *gs);
152void grep_source_clear_data(struct grep_source *gs);
153void grep_source_clear(struct grep_source *gs);
94ad9d9e 154void grep_source_load_driver(struct grep_source *gs);
41b59bfc 155int grep_source_is_binary(struct grep_source *gs);
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156
157int grep_source(struct grep_opt *opt, struct grep_source *gs);
158
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159extern struct grep_opt *grep_opt_dup(const struct grep_opt *opt);
160extern int grep_threads_ok(const struct grep_opt *opt);
161
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162#ifndef NO_PTHREADS
163/*
164 * Mutex used around access to the attributes machinery if
165 * opt->use_threads. Must be initialized/destroyed by callers!
166 */
78db6ea9 167extern int grep_use_locks;
0579f91d 168extern pthread_mutex_t grep_attr_mutex;
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169extern pthread_mutex_t grep_read_mutex;
170
171static inline void grep_read_lock(void)
172{
173 if (grep_use_locks)
174 pthread_mutex_lock(&grep_read_mutex);
175}
176
177static inline void grep_read_unlock(void)
178{
179 if (grep_use_locks)
180 pthread_mutex_unlock(&grep_read_mutex);
181}
182
183#else
184#define grep_read_lock()
185#define grep_read_unlock()
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186#endif
187
83b5d2f5 188#endif