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grep.c: remove "extended" in favor of "pattern_expression", fix segfault
[thirdparty/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_LIBPCRE2
5#define PCRE2_CODE_UNIT_WIDTH 8
6#include <pcre2.h>
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7#if (PCRE2_MAJOR >= 10 && PCRE2_MINOR >= 36) || PCRE2_MAJOR >= 11
8#define GIT_PCRE2_VERSION_10_36_OR_HIGHER
9#endif
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10#if (PCRE2_MAJOR >= 10 && PCRE2_MINOR >= 34) || PCRE2_MAJOR >= 11
11#define GIT_PCRE2_VERSION_10_34_OR_HIGHER
12#endif
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13#else
14typedef int pcre2_code;
15typedef int pcre2_match_data;
16typedef int pcre2_compile_context;
cbe81e65 17typedef int pcre2_general_context;
94da9193 18#endif
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19#ifndef PCRE2_MATCH_INVALID_UTF
20/* PCRE2_MATCH_* dummy also with !USE_LIBPCRE2, for test-pcre2-config.c */
21#define PCRE2_MATCH_INVALID_UTF 0
22#endif
0579f91d 23#include "thread-utils.h"
94ad9d9e 24#include "userdiff.h"
83b5d2f5 25
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26struct repository;
27
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28enum grep_pat_token {
29 GREP_PATTERN,
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30 GREP_PATTERN_HEAD,
31 GREP_PATTERN_BODY,
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32 GREP_AND,
33 GREP_OPEN_PAREN,
34 GREP_CLOSE_PAREN,
35 GREP_NOT,
4b05548f 36 GREP_OR
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37};
38
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39enum grep_context {
40 GREP_CONTEXT_HEAD,
4b05548f 41 GREP_CONTEXT_BODY
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42};
43
a4d7d2c6 44enum grep_header_field {
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45 GREP_HEADER_FIELD_MIN = 0,
46 GREP_HEADER_AUTHOR = GREP_HEADER_FIELD_MIN,
ad4813b3 47 GREP_HEADER_COMMITTER,
72fd13f7 48 GREP_HEADER_REFLOG,
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49
50 /* Must be at the end of the enum */
51 GREP_HEADER_FIELD_MAX
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52};
53
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54enum grep_color {
55 GREP_COLOR_CONTEXT,
56 GREP_COLOR_FILENAME,
57 GREP_COLOR_FUNCTION,
58 GREP_COLOR_LINENO,
d036d667 59 GREP_COLOR_COLUMNNO,
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60 GREP_COLOR_MATCH_CONTEXT,
61 GREP_COLOR_MATCH_SELECTED,
62 GREP_COLOR_SELECTED,
63 GREP_COLOR_SEP,
64 NR_GREP_COLORS
65};
66
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67struct grep_pat {
68 struct grep_pat *next;
69 const char *origin;
70 int no;
71 enum grep_pat_token token;
526a858a 72 char *pattern;
ed40a095 73 size_t patternlen;
a4d7d2c6 74 enum grep_header_field field;
83b5d2f5 75 regex_t regexp;
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76 pcre2_code *pcre2_pattern;
77 pcre2_match_data *pcre2_match_data;
78 pcre2_compile_context *pcre2_compile_context;
cbe81e65 79 pcre2_general_context *pcre2_general_context;
10da030a 80 const uint8_t *pcre2_tables;
94da9193 81 uint32_t pcre2_jit_on;
c822255c 82 unsigned fixed:1;
09872f64 83 unsigned is_fixed:1;
5183bf67 84 unsigned ignore_case:1;
d7eb527d 85 unsigned word_regexp:1;
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86};
87
88enum grep_expr_node {
89 GREP_NODE_ATOM,
90 GREP_NODE_NOT,
91 GREP_NODE_AND,
5aaeb733 92 GREP_NODE_TRUE,
4b05548f 93 GREP_NODE_OR
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94};
95
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96enum grep_pattern_type {
97 GREP_PATTERN_TYPE_UNSPECIFIED = 0,
98 GREP_PATTERN_TYPE_BRE,
99 GREP_PATTERN_TYPE_ERE,
100 GREP_PATTERN_TYPE_FIXED,
101 GREP_PATTERN_TYPE_PCRE
102};
103
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104struct grep_expr {
105 enum grep_expr_node node;
0ab7befa 106 unsigned hit;
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107 union {
108 struct grep_pat *atom;
109 struct grep_expr *unary;
110 struct {
111 struct grep_expr *left;
112 struct grep_expr *right;
113 } binary;
114 } u;
115};
116
117struct grep_opt {
118 struct grep_pat *pattern_list;
119 struct grep_pat **pattern_tail;
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120 struct grep_pat *header_list;
121 struct grep_pat **header_tail;
83b5d2f5 122 struct grep_expr *pattern_expression;
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123
124 /*
125 * NEEDSWORK: See if we can remove this field, because the repository
126 * should probably be per-source. That is, grep.c functions using this
127 * field should probably start using "repo" in "struct grep_source"
128 * instead.
129 *
130 * This is potentially the cause of at least one bug - "git grep"
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131 * using the textconv attributes from the superproject on the
132 * submodules. See the failing "git grep --textconv" tests in
133 * t7814-grep-recurse-submodules.sh for more information.
0693806b 134 */
38bbc2ea 135 struct repository *repo;
0693806b 136
3e230fa1 137 int linenum;
017c0fcf 138 int columnnum;
3e230fa1 139 int invert;
5183bf67 140 int ignore_case;
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141 int status_only;
142 int name_only;
143 int unmatch_name_only;
144 int count;
145 int word_regexp;
3e230fa1 146 int all_match;
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147 int no_body_match;
148 int body_hit;
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149#define GREP_BINARY_DEFAULT 0
150#define GREP_BINARY_NOMATCH 1
151#define GREP_BINARY_TEXT 2
3e230fa1 152 int binary;
335ec3bf 153 int allow_textconv;
baa6378f 154 int use_reflog_filter;
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155 int relative;
156 int pathname;
157 int null_following_name;
9d8db06e 158 int only_matching;
7e8f59d5 159 int color;
a91f453f 160 int max_depth;
2944e4e6 161 int funcname;
ba8ea749 162 int funcbody;
84befcd0 163 int extended_regexp_option;
321ee436 164 enum grep_pattern_type pattern_type_option;
44570188 165 int ignore_locale;
fa151dc5 166 char colors[NR_GREP_COLORS][COLOR_MAXLEN];
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167 unsigned pre_context;
168 unsigned post_context;
5dd06d38 169 unsigned last_shown;
046802d0 170 int show_hunk_mark;
a8f0e764 171 int file_break;
1d84f72e 172 int heading;
60ecac98 173 void *priv;
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174
175 void (*output)(struct grep_opt *opt, const void *data, size_t size);
176 void *output_priv;
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177};
178
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179#define GREP_OPT_INIT { \
180 .relative = 1, \
181 .pathname = 1, \
182 .max_depth = -1, \
183 .pattern_type_option = GREP_PATTERN_TYPE_UNSPECIFIED, \
184 .colors = { \
185 [GREP_COLOR_CONTEXT] = "", \
186 [GREP_COLOR_FILENAME] = GIT_COLOR_MAGENTA, \
187 [GREP_COLOR_FUNCTION] = "", \
188 [GREP_COLOR_LINENO] = GIT_COLOR_GREEN, \
189 [GREP_COLOR_COLUMNNO] = GIT_COLOR_GREEN, \
190 [GREP_COLOR_MATCH_CONTEXT] = GIT_COLOR_BOLD_RED, \
191 [GREP_COLOR_MATCH_SELECTED] = GIT_COLOR_BOLD_RED, \
192 [GREP_COLOR_SELECTED] = "", \
193 [GREP_COLOR_SEP] = GIT_COLOR_CYAN, \
194 }, \
195 .only_matching = 0, \
196 .color = -1, \
197 .output = std_output, \
198}
199
55454427 200int grep_config(const char *var, const char *value, void *);
9725c8dd 201void grep_init(struct grep_opt *, struct repository *repo);
7687a054 202
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203void append_grep_pat(struct grep_opt *opt, const char *pat, size_t patlen, const char *origin, int no, enum grep_pat_token t);
204void append_grep_pattern(struct grep_opt *opt, const char *pat, const char *origin, int no, enum grep_pat_token t);
205void append_header_grep_pattern(struct grep_opt *, enum grep_header_field, const char *);
206void compile_grep_patterns(struct grep_opt *opt);
207void free_grep_patterns(struct grep_opt *opt);
1e668716 208int grep_buffer(struct grep_opt *opt, const char *buf, unsigned long size);
83b5d2f5 209
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210/* The field parameter is only used to filter header patterns
211 * (where appropriate). If filtering isn't desirable
212 * GREP_HEADER_FIELD_MAX should be supplied.
213 */
214int grep_next_match(struct grep_opt *opt,
215 const char *bol, const char *eol,
216 enum grep_context ctx, regmatch_t *pmatch,
217 enum grep_header_field field, int eflags);
218
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219struct grep_source {
220 char *name;
221
222 enum grep_source_type {
1c41c82b 223 GREP_SOURCE_OID,
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224 GREP_SOURCE_FILE,
225 GREP_SOURCE_BUF,
226 } type;
227 void *identifier;
0693806b 228 struct repository *repo; /* if GREP_SOURCE_OID */
e1327023 229
1e668716 230 const char *buf;
e1327023 231 unsigned long size;
94ad9d9e 232
55c61688 233 char *path; /* for attribute lookups */
94ad9d9e 234 struct userdiff_driver *driver;
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235};
236
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237void grep_source_init_file(struct grep_source *gs, const char *name,
238 const char *path);
239void grep_source_init_oid(struct grep_source *gs, const char *name,
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240 const char *path, const struct object_id *oid,
241 struct repository *repo);
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242void grep_source_clear_data(struct grep_source *gs);
243void grep_source_clear(struct grep_source *gs);
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244void grep_source_load_driver(struct grep_source *gs,
245 struct index_state *istate);
07a7d656 246
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247
248int grep_source(struct grep_opt *opt, struct grep_source *gs);
249
55454427 250struct grep_opt *grep_opt_dup(const struct grep_opt *opt);
5b594f45 251
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252/*
253 * Mutex used around access to the attributes machinery if
254 * opt->use_threads. Must be initialized/destroyed by callers!
255 */
78db6ea9 256extern int grep_use_locks;
0579f91d 257extern pthread_mutex_t grep_attr_mutex;
b3aeb285 258
83b5d2f5 259#endif