log: add -P as a synonym for --perl-regexp
[git/git.git] / grep.h
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1#ifndef GREP_H
2#define GREP_H
7e8f59d5 3#include "color.h"
3485bea1 4#ifdef USE_LIBPCRE1
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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
a4d7d2c6 30enum grep_header_field {
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31 GREP_HEADER_FIELD_MIN = 0,
32 GREP_HEADER_AUTHOR = GREP_HEADER_FIELD_MIN,
ad4813b3 33 GREP_HEADER_COMMITTER,
72fd13f7 34 GREP_HEADER_REFLOG,
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35
36 /* Must be at the end of the enum */
37 GREP_HEADER_FIELD_MAX
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38};
39
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40struct grep_pat {
41 struct grep_pat *next;
42 const char *origin;
43 int no;
44 enum grep_pat_token token;
526a858a 45 char *pattern;
ed40a095 46 size_t patternlen;
a4d7d2c6 47 enum grep_header_field field;
83b5d2f5 48 regex_t regexp;
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49 pcre *pcre1_regexp;
50 pcre_extra *pcre1_extra_info;
51 const unsigned char *pcre1_tables;
9eceddee 52 kwset_t kws;
c822255c 53 unsigned fixed:1;
5183bf67 54 unsigned ignore_case:1;
d7eb527d 55 unsigned word_regexp:1;
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56};
57
58enum grep_expr_node {
59 GREP_NODE_ATOM,
60 GREP_NODE_NOT,
61 GREP_NODE_AND,
5aaeb733 62 GREP_NODE_TRUE,
4b05548f 63 GREP_NODE_OR
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64};
65
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66enum grep_pattern_type {
67 GREP_PATTERN_TYPE_UNSPECIFIED = 0,
68 GREP_PATTERN_TYPE_BRE,
69 GREP_PATTERN_TYPE_ERE,
70 GREP_PATTERN_TYPE_FIXED,
71 GREP_PATTERN_TYPE_PCRE
72};
73
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74struct grep_expr {
75 enum grep_expr_node node;
0ab7befa 76 unsigned hit;
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77 union {
78 struct grep_pat *atom;
79 struct grep_expr *unary;
80 struct {
81 struct grep_expr *left;
82 struct grep_expr *right;
83 } binary;
84 } u;
85};
86
87struct grep_opt {
88 struct grep_pat *pattern_list;
89 struct grep_pat **pattern_tail;
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90 struct grep_pat *header_list;
91 struct grep_pat **header_tail;
83b5d2f5 92 struct grep_expr *pattern_expression;
493b7a08 93 const char *prefix;
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94 int prefix_length;
95 regex_t regexp;
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96 int linenum;
97 int invert;
5183bf67 98 int ignore_case;
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99 int status_only;
100 int name_only;
101 int unmatch_name_only;
102 int count;
103 int word_regexp;
104 int fixed;
105 int all_match;
17bf35a3 106 int debug;
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107#define GREP_BINARY_DEFAULT 0
108#define GREP_BINARY_NOMATCH 1
109#define GREP_BINARY_TEXT 2
3e230fa1 110 int binary;
335ec3bf 111 int allow_textconv;
3e230fa1 112 int extended;
baa6378f 113 int use_reflog_filter;
6d4b5747 114 int pcre1;
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115 int relative;
116 int pathname;
117 int null_following_name;
7e8f59d5 118 int color;
a91f453f 119 int max_depth;
2944e4e6 120 int funcname;
ba8ea749 121 int funcbody;
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122 int extended_regexp_option;
123 int pattern_type_option;
00588bb5 124 char color_context[COLOR_MAXLEN];
55f638bd 125 char color_filename[COLOR_MAXLEN];
00588bb5 126 char color_function[COLOR_MAXLEN];
55f638bd 127 char color_lineno[COLOR_MAXLEN];
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128 char color_match_context[COLOR_MAXLEN];
129 char color_match_selected[COLOR_MAXLEN];
00588bb5 130 char color_selected[COLOR_MAXLEN];
55f638bd 131 char color_sep[COLOR_MAXLEN];
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132 int regflags;
133 unsigned pre_context;
134 unsigned post_context;
5dd06d38 135 unsigned last_shown;
046802d0 136 int show_hunk_mark;
a8f0e764 137 int file_break;
1d84f72e 138 int heading;
60ecac98 139 void *priv;
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140
141 void (*output)(struct grep_opt *opt, const void *data, size_t size);
142 void *output_priv;
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143};
144
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145extern void init_grep_defaults(void);
146extern int grep_config(const char *var, const char *value, void *);
147extern void grep_init(struct grep_opt *, const char *prefix);
c5c31d33 148void grep_commit_pattern_type(enum grep_pattern_type, struct grep_opt *opt);
7687a054 149
ed40a095 150extern 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 151extern void append_grep_pattern(struct grep_opt *opt, const char *pat, const char *origin, int no, enum grep_pat_token t);
a4d7d2c6 152extern void append_header_grep_pattern(struct grep_opt *, enum grep_header_field, const char *);
83b5d2f5 153extern void compile_grep_patterns(struct grep_opt *opt);
b48fb5b6 154extern void free_grep_patterns(struct grep_opt *opt);
c876d6da 155extern int grep_buffer(struct grep_opt *opt, char *buf, unsigned long size);
83b5d2f5 156
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157struct grep_source {
158 char *name;
159
160 enum grep_source_type {
161 GREP_SOURCE_SHA1,
162 GREP_SOURCE_FILE,
163 GREP_SOURCE_BUF,
4538eef5 164 GREP_SOURCE_SUBMODULE,
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165 } type;
166 void *identifier;
167
168 char *buf;
169 unsigned long size;
94ad9d9e 170
55c61688 171 char *path; /* for attribute lookups */
94ad9d9e 172 struct userdiff_driver *driver;
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173};
174
175void grep_source_init(struct grep_source *gs, enum grep_source_type type,
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176 const char *name, const char *path,
177 const void *identifier);
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178void grep_source_clear_data(struct grep_source *gs);
179void grep_source_clear(struct grep_source *gs);
94ad9d9e 180void grep_source_load_driver(struct grep_source *gs);
07a7d656 181
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182
183int grep_source(struct grep_opt *opt, struct grep_source *gs);
184
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185extern struct grep_opt *grep_opt_dup(const struct grep_opt *opt);
186extern int grep_threads_ok(const struct grep_opt *opt);
187
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188#ifndef NO_PTHREADS
189/*
190 * Mutex used around access to the attributes machinery if
191 * opt->use_threads. Must be initialized/destroyed by callers!
192 */
78db6ea9 193extern int grep_use_locks;
0579f91d 194extern pthread_mutex_t grep_attr_mutex;
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195extern pthread_mutex_t grep_read_mutex;
196
197static inline void grep_read_lock(void)
198{
199 if (grep_use_locks)
200 pthread_mutex_lock(&grep_read_mutex);
201}
202
203static inline void grep_read_unlock(void)
204{
205 if (grep_use_locks)
206 pthread_mutex_unlock(&grep_read_mutex);
207}
208
209#else
210#define grep_read_lock()
211#define grep_read_unlock()
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212#endif
213
83b5d2f5 214#endif