Andrew's git - gitweb.git/blob

3bff0870b25cedce6d01d2924eb2af61bd6b58aa
   1#ifndef GREP_H
   2#define GREP_H
   3#include "color.h"
   4#ifdef USE_LIBPCRE1
   5#include <pcre.h>
   6#ifdef PCRE_CONFIG_JIT
   7#if PCRE_MAJOR >= 8 && PCRE_MINOR >= 32
   8#ifndef NO_LIBPCRE1_JIT
   9#define GIT_PCRE1_USE_JIT
  10#endif
  11#endif
  12#endif
  13#ifndef PCRE_STUDY_JIT_COMPILE
  14#define PCRE_STUDY_JIT_COMPILE 0
  15#endif
  16#if PCRE_MAJOR <= 8 && PCRE_MINOR < 20
  17typedef int pcre_jit_stack;
  18#endif
  19#else
  20typedef int pcre;
  21typedef int pcre_extra;
  22typedef int pcre_jit_stack;
  23#endif
  24#include "kwset.h"
  25#include "thread-utils.h"
  26#include "userdiff.h"
  27
  28enum grep_pat_token {
  29        GREP_PATTERN,
  30        GREP_PATTERN_HEAD,
  31        GREP_PATTERN_BODY,
  32        GREP_AND,
  33        GREP_OPEN_PAREN,
  34        GREP_CLOSE_PAREN,
  35        GREP_NOT,
  36        GREP_OR
  37};
  38
  39enum grep_context {
  40        GREP_CONTEXT_HEAD,
  41        GREP_CONTEXT_BODY
  42};
  43
  44enum grep_header_field {
  45        GREP_HEADER_FIELD_MIN = 0,
  46        GREP_HEADER_AUTHOR = GREP_HEADER_FIELD_MIN,
  47        GREP_HEADER_COMMITTER,
  48        GREP_HEADER_REFLOG,
  49
  50        /* Must be at the end of the enum */
  51        GREP_HEADER_FIELD_MAX
  52};
  53
  54struct grep_pat {
  55        struct grep_pat *next;
  56        const char *origin;
  57        int no;
  58        enum grep_pat_token token;
  59        char *pattern;
  60        size_t patternlen;
  61        enum grep_header_field field;
  62        regex_t regexp;
  63        pcre *pcre1_regexp;
  64        pcre_extra *pcre1_extra_info;
  65        pcre_jit_stack *pcre1_jit_stack;
  66        const unsigned char *pcre1_tables;
  67        int pcre1_jit_on;
  68        kwset_t kws;
  69        unsigned fixed:1;
  70        unsigned ignore_case:1;
  71        unsigned word_regexp:1;
  72};
  73
  74enum grep_expr_node {
  75        GREP_NODE_ATOM,
  76        GREP_NODE_NOT,
  77        GREP_NODE_AND,
  78        GREP_NODE_TRUE,
  79        GREP_NODE_OR
  80};
  81
  82enum grep_pattern_type {
  83        GREP_PATTERN_TYPE_UNSPECIFIED = 0,
  84        GREP_PATTERN_TYPE_BRE,
  85        GREP_PATTERN_TYPE_ERE,
  86        GREP_PATTERN_TYPE_FIXED,
  87        GREP_PATTERN_TYPE_PCRE
  88};
  89
  90struct grep_expr {
  91        enum grep_expr_node node;
  92        unsigned hit;
  93        union {
  94                struct grep_pat *atom;
  95                struct grep_expr *unary;
  96                struct {
  97                        struct grep_expr *left;
  98                        struct grep_expr *right;
  99                } binary;
 100        } u;
 101};
 102
 103struct grep_opt {
 104        struct grep_pat *pattern_list;
 105        struct grep_pat **pattern_tail;
 106        struct grep_pat *header_list;
 107        struct grep_pat **header_tail;
 108        struct grep_expr *pattern_expression;
 109        const char *prefix;
 110        int prefix_length;
 111        regex_t regexp;
 112        int linenum;
 113        int invert;
 114        int ignore_case;
 115        int status_only;
 116        int name_only;
 117        int unmatch_name_only;
 118        int count;
 119        int word_regexp;
 120        int fixed;
 121        int all_match;
 122        int debug;
 123#define GREP_BINARY_DEFAULT     0
 124#define GREP_BINARY_NOMATCH     1
 125#define GREP_BINARY_TEXT        2
 126        int binary;
 127        int allow_textconv;
 128        int extended;
 129        int use_reflog_filter;
 130        int pcre1;
 131        int relative;
 132        int pathname;
 133        int null_following_name;
 134        int color;
 135        int max_depth;
 136        int funcname;
 137        int funcbody;
 138        int extended_regexp_option;
 139        int pattern_type_option;
 140        char color_context[COLOR_MAXLEN];
 141        char color_filename[COLOR_MAXLEN];
 142        char color_function[COLOR_MAXLEN];
 143        char color_lineno[COLOR_MAXLEN];
 144        char color_match_context[COLOR_MAXLEN];
 145        char color_match_selected[COLOR_MAXLEN];
 146        char color_selected[COLOR_MAXLEN];
 147        char color_sep[COLOR_MAXLEN];
 148        int regflags;
 149        unsigned pre_context;
 150        unsigned post_context;
 151        unsigned last_shown;
 152        int show_hunk_mark;
 153        int file_break;
 154        int heading;
 155        void *priv;
 156
 157        void (*output)(struct grep_opt *opt, const void *data, size_t size);
 158        void *output_priv;
 159};
 160
 161extern void init_grep_defaults(void);
 162extern int grep_config(const char *var, const char *value, void *);
 163extern void grep_init(struct grep_opt *, const char *prefix);
 164void grep_commit_pattern_type(enum grep_pattern_type, struct grep_opt *opt);
 165
 166extern void append_grep_pat(struct grep_opt *opt, const char *pat, size_t patlen, const char *origin, int no, enum grep_pat_token t);
 167extern void append_grep_pattern(struct grep_opt *opt, const char *pat, const char *origin, int no, enum grep_pat_token t);
 168extern void append_header_grep_pattern(struct grep_opt *, enum grep_header_field, const char *);
 169extern void compile_grep_patterns(struct grep_opt *opt);
 170extern void free_grep_patterns(struct grep_opt *opt);
 171extern int grep_buffer(struct grep_opt *opt, char *buf, unsigned long size);
 172
 173struct grep_source {
 174        char *name;
 175
 176        enum grep_source_type {
 177                GREP_SOURCE_SHA1,
 178                GREP_SOURCE_FILE,
 179                GREP_SOURCE_BUF,
 180                GREP_SOURCE_SUBMODULE,
 181        } type;
 182        void *identifier;
 183
 184        char *buf;
 185        unsigned long size;
 186
 187        char *path; /* for attribute lookups */
 188        struct userdiff_driver *driver;
 189};
 190
 191void grep_source_init(struct grep_source *gs, enum grep_source_type type,
 192                      const char *name, const char *path,
 193                      const void *identifier);
 194void grep_source_clear_data(struct grep_source *gs);
 195void grep_source_clear(struct grep_source *gs);
 196void grep_source_load_driver(struct grep_source *gs);
 197
 198
 199int grep_source(struct grep_opt *opt, struct grep_source *gs);
 200
 201extern struct grep_opt *grep_opt_dup(const struct grep_opt *opt);
 202extern int grep_threads_ok(const struct grep_opt *opt);
 203
 204#ifndef NO_PTHREADS
 205/*
 206 * Mutex used around access to the attributes machinery if
 207 * opt->use_threads.  Must be initialized/destroyed by callers!
 208 */
 209extern int grep_use_locks;
 210extern pthread_mutex_t grep_attr_mutex;
 211extern pthread_mutex_t grep_read_mutex;
 212
 213static inline void grep_read_lock(void)
 214{
 215        if (grep_use_locks)
 216                pthread_mutex_lock(&grep_read_mutex);
 217}
 218
 219static inline void grep_read_unlock(void)
 220{
 221        if (grep_use_locks)
 222                pthread_mutex_unlock(&grep_read_mutex);
 223}
 224
 225#else
 226#define grep_read_lock()
 227#define grep_read_unlock()
 228#endif
 229
 230#endif