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[alt-git.git] / grep.h
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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_FIELD_MIN = 0,
32 GREP_HEADER_AUTHOR = GREP_HEADER_FIELD_MIN,
33 GREP_HEADER_COMMITTER,
34 GREP_HEADER_REFLOG,
36 /* Must be at the end of the enum */
37 GREP_HEADER_FIELD_MAX
40 struct grep_pat {
41 struct grep_pat *next;
42 const char *origin;
43 int no;
44 enum grep_pat_token token;
45 char *pattern;
46 size_t patternlen;
47 enum grep_header_field field;
48 regex_t regexp;
49 pcre *pcre_regexp;
50 pcre_extra *pcre_extra_info;
51 kwset_t kws;
52 unsigned fixed:1;
53 unsigned ignore_case:1;
54 unsigned word_regexp:1;
57 enum grep_expr_node {
58 GREP_NODE_ATOM,
59 GREP_NODE_NOT,
60 GREP_NODE_AND,
61 GREP_NODE_TRUE,
62 GREP_NODE_OR
65 enum grep_pattern_type {
66 GREP_PATTERN_TYPE_UNSPECIFIED = 0,
67 GREP_PATTERN_TYPE_BRE,
68 GREP_PATTERN_TYPE_ERE,
69 GREP_PATTERN_TYPE_FIXED,
70 GREP_PATTERN_TYPE_PCRE
73 struct grep_expr {
74 enum grep_expr_node node;
75 unsigned hit;
76 union {
77 struct grep_pat *atom;
78 struct grep_expr *unary;
79 struct {
80 struct grep_expr *left;
81 struct grep_expr *right;
82 } binary;
83 } u;
86 struct grep_opt {
87 struct grep_pat *pattern_list;
88 struct grep_pat **pattern_tail;
89 struct grep_pat *header_list;
90 struct grep_pat **header_tail;
91 struct grep_expr *pattern_expression;
92 const char *prefix;
93 int prefix_length;
94 regex_t regexp;
95 int linenum;
96 int invert;
97 int ignore_case;
98 int status_only;
99 int name_only;
100 int unmatch_name_only;
101 int count;
102 int word_regexp;
103 int fixed;
104 int all_match;
105 int debug;
106 #define GREP_BINARY_DEFAULT 0
107 #define GREP_BINARY_NOMATCH 1
108 #define GREP_BINARY_TEXT 2
109 int binary;
110 int extended;
111 int use_reflog_filter;
112 int pcre;
113 int relative;
114 int pathname;
115 int null_following_name;
116 int color;
117 int max_depth;
118 int funcname;
119 int funcbody;
120 int extended_regexp_option;
121 int pattern_type_option;
122 char color_context[COLOR_MAXLEN];
123 char color_filename[COLOR_MAXLEN];
124 char color_function[COLOR_MAXLEN];
125 char color_lineno[COLOR_MAXLEN];
126 char color_match[COLOR_MAXLEN];
127 char color_selected[COLOR_MAXLEN];
128 char color_sep[COLOR_MAXLEN];
129 int regflags;
130 unsigned pre_context;
131 unsigned post_context;
132 unsigned last_shown;
133 int show_hunk_mark;
134 int file_break;
135 int heading;
136 void *priv;
138 void (*output)(struct grep_opt *opt, const void *data, size_t size);
139 void *output_priv;
142 extern void init_grep_defaults(void);
143 extern int grep_config(const char *var, const char *value, void *);
144 extern void grep_init(struct grep_opt *, const char *prefix);
145 void grep_set_pattern_type_option(enum grep_pattern_type, struct grep_opt *opt);
146 void grep_commit_pattern_type(enum grep_pattern_type, struct grep_opt *opt);
148 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);
149 extern void append_grep_pattern(struct grep_opt *opt, const char *pat, const char *origin, int no, enum grep_pat_token t);
150 extern void append_header_grep_pattern(struct grep_opt *, enum grep_header_field, const char *);
151 extern void compile_grep_patterns(struct grep_opt *opt);
152 extern void free_grep_patterns(struct grep_opt *opt);
153 extern int grep_buffer(struct grep_opt *opt, char *buf, unsigned long size);
155 struct grep_source {
156 char *name;
158 enum grep_source_type {
159 GREP_SOURCE_SHA1,
160 GREP_SOURCE_FILE,
161 GREP_SOURCE_BUF,
162 } type;
163 void *identifier;
165 char *buf;
166 unsigned long size;
168 char *path; /* for attribute lookups */
169 struct userdiff_driver *driver;
172 void grep_source_init(struct grep_source *gs, enum grep_source_type type,
173 const char *name, const char *path,
174 const void *identifier);
175 void grep_source_clear_data(struct grep_source *gs);
176 void grep_source_clear(struct grep_source *gs);
177 void grep_source_load_driver(struct grep_source *gs);
180 int grep_source(struct grep_opt *opt, struct grep_source *gs);
182 extern struct grep_opt *grep_opt_dup(const struct grep_opt *opt);
183 extern int grep_threads_ok(const struct grep_opt *opt);
185 #ifndef NO_PTHREADS
187 * Mutex used around access to the attributes machinery if
188 * opt->use_threads. Must be initialized/destroyed by callers!
190 extern int grep_use_locks;
191 extern pthread_mutex_t grep_attr_mutex;
192 extern pthread_mutex_t grep_read_mutex;
194 static inline void grep_read_lock(void)
196 if (grep_use_locks)
197 pthread_mutex_lock(&grep_read_mutex);
200 static inline void grep_read_unlock(void)
202 if (grep_use_locks)
203 pthread_mutex_unlock(&grep_read_mutex);
206 #else
207 #define grep_read_lock()
208 #define grep_read_unlock()
209 #endif
211 #endif