ident: do not drop username when reading from /etc/mailname
[git/jnareb-git.git] / grep.h
blobd66b19712c18cb93bf789c37ed36ad787fa89a92
1 #ifndef GREP_H
2 #define GREP_H
3 #include "color.h"
4 #ifdef USE_LIBPCRE
5 #include <pcre.h>
6 #else
7 typedef int pcre;
8 typedef int pcre_extra;
9 #endif
10 #include "kwset.h"
11 #include "thread-utils.h"
12 #include "userdiff.h"
14 enum grep_pat_token {
15 GREP_PATTERN,
16 GREP_PATTERN_HEAD,
17 GREP_PATTERN_BODY,
18 GREP_AND,
19 GREP_OPEN_PAREN,
20 GREP_CLOSE_PAREN,
21 GREP_NOT,
22 GREP_OR
25 enum grep_context {
26 GREP_CONTEXT_HEAD,
27 GREP_CONTEXT_BODY
30 enum grep_header_field {
31 GREP_HEADER_AUTHOR = 0,
32 GREP_HEADER_COMMITTER
34 #define GREP_HEADER_FIELD_MAX (GREP_HEADER_COMMITTER + 1)
36 struct grep_pat {
37 struct grep_pat *next;
38 const char *origin;
39 int no;
40 enum grep_pat_token token;
41 char *pattern;
42 size_t patternlen;
43 enum grep_header_field field;
44 regex_t regexp;
45 pcre *pcre_regexp;
46 pcre_extra *pcre_extra_info;
47 kwset_t kws;
48 unsigned fixed:1;
49 unsigned ignore_case:1;
50 unsigned word_regexp:1;
53 enum grep_expr_node {
54 GREP_NODE_ATOM,
55 GREP_NODE_NOT,
56 GREP_NODE_AND,
57 GREP_NODE_TRUE,
58 GREP_NODE_OR
61 struct grep_expr {
62 enum grep_expr_node node;
63 unsigned hit;
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;
74 struct grep_opt {
75 struct grep_pat *pattern_list;
76 struct grep_pat **pattern_tail;
77 struct grep_pat *header_list;
78 struct grep_pat **header_tail;
79 struct grep_expr *pattern_expression;
80 const char *prefix;
81 int prefix_length;
82 regex_t regexp;
83 int linenum;
84 int invert;
85 int ignore_case;
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;
93 int debug;
94 #define GREP_BINARY_DEFAULT 0
95 #define GREP_BINARY_NOMATCH 1
96 #define GREP_BINARY_TEXT 2
97 int binary;
98 int extended;
99 int pcre;
100 int relative;
101 int pathname;
102 int null_following_name;
103 int color;
104 int max_depth;
105 int funcname;
106 int funcbody;
107 char color_context[COLOR_MAXLEN];
108 char color_filename[COLOR_MAXLEN];
109 char color_function[COLOR_MAXLEN];
110 char color_lineno[COLOR_MAXLEN];
111 char color_match[COLOR_MAXLEN];
112 char color_selected[COLOR_MAXLEN];
113 char color_sep[COLOR_MAXLEN];
114 int regflags;
115 unsigned pre_context;
116 unsigned post_context;
117 unsigned last_shown;
118 int show_hunk_mark;
119 int file_break;
120 int heading;
121 void *priv;
123 void (*output)(struct grep_opt *opt, const void *data, size_t size);
124 void *output_priv;
127 extern void append_grep_pat(struct grep_opt *opt, const char *pat, size_t patlen, const char *origin, int no, enum grep_pat_token t);
128 extern void append_grep_pattern(struct grep_opt *opt, const char *pat, const char *origin, int no, enum grep_pat_token t);
129 extern void append_header_grep_pattern(struct grep_opt *, enum grep_header_field, const char *);
130 extern void compile_grep_patterns(struct grep_opt *opt);
131 extern void free_grep_patterns(struct grep_opt *opt);
132 extern int grep_buffer(struct grep_opt *opt, char *buf, unsigned long size);
134 struct grep_source {
135 char *name;
137 enum grep_source_type {
138 GREP_SOURCE_SHA1,
139 GREP_SOURCE_FILE,
140 GREP_SOURCE_BUF,
141 } type;
142 void *identifier;
144 char *buf;
145 unsigned long size;
147 struct userdiff_driver *driver;
150 void grep_source_init(struct grep_source *gs, enum grep_source_type type,
151 const char *name, const void *identifier);
152 void grep_source_clear_data(struct grep_source *gs);
153 void grep_source_clear(struct grep_source *gs);
154 void grep_source_load_driver(struct grep_source *gs);
157 int grep_source(struct grep_opt *opt, struct grep_source *gs);
159 extern struct grep_opt *grep_opt_dup(const struct grep_opt *opt);
160 extern int grep_threads_ok(const struct grep_opt *opt);
162 #ifndef NO_PTHREADS
164 * Mutex used around access to the attributes machinery if
165 * opt->use_threads. Must be initialized/destroyed by callers!
167 extern int grep_use_locks;
168 extern pthread_mutex_t grep_attr_mutex;
169 extern pthread_mutex_t grep_read_mutex;
171 static inline void grep_read_lock(void)
173 if (grep_use_locks)
174 pthread_mutex_lock(&grep_read_mutex);
177 static inline void grep_read_unlock(void)
179 if (grep_use_locks)
180 pthread_mutex_unlock(&grep_read_mutex);
183 #else
184 #define grep_read_lock()
185 #define grep_read_unlock()
186 #endif
188 #endif