Andrew's git - gitweb.git/blob

   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#define GIT_PCRE_STUDY_JIT_COMPILE PCRE_STUDY_JIT_COMPILE
  11#endif
  12#endif
  13#endif
  14#ifndef GIT_PCRE_STUDY_JIT_COMPILE
  15#define GIT_PCRE_STUDY_JIT_COMPILE 0
  16#endif
  17#if PCRE_MAJOR <= 8 && PCRE_MINOR < 20
  18typedef int pcre_jit_stack;
  19#endif
  20#else
  21typedef int pcre;
  22typedef int pcre_extra;
  23typedef int pcre_jit_stack;
  24#endif
  25#ifdef USE_LIBPCRE2
  26#define PCRE2_CODE_UNIT_WIDTH 8
  27#include <pcre2.h>
  28#else
  29typedef int pcre2_code;
  30typedef int pcre2_match_data;
  31typedef int pcre2_compile_context;
  32typedef int pcre2_match_context;
  33typedef int pcre2_jit_stack;
  34#endif
  35#include "kwset.h"
  36#include "thread-utils.h"
  37#include "userdiff.h"
  38
  39enum grep_pat_token {
  40        GREP_PATTERN,
  41        GREP_PATTERN_HEAD,
  42        GREP_PATTERN_BODY,
  43        GREP_AND,
  44        GREP_OPEN_PAREN,
  45        GREP_CLOSE_PAREN,
  46        GREP_NOT,
  47        GREP_OR
  48};
  49
  50enum grep_context {
  51        GREP_CONTEXT_HEAD,
  52        GREP_CONTEXT_BODY
  53};
  54
  55enum grep_header_field {
  56        GREP_HEADER_FIELD_MIN = 0,
  57        GREP_HEADER_AUTHOR = GREP_HEADER_FIELD_MIN,
  58        GREP_HEADER_COMMITTER,
  59        GREP_HEADER_REFLOG,
  60
  61        /* Must be at the end of the enum */
  62        GREP_HEADER_FIELD_MAX
  63};
  64
  65enum grep_color {
  66        GREP_COLOR_CONTEXT,
  67        GREP_COLOR_FILENAME,
  68        GREP_COLOR_FUNCTION,
  69        GREP_COLOR_LINENO,
  70        GREP_COLOR_MATCH_CONTEXT,
  71        GREP_COLOR_MATCH_SELECTED,
  72        GREP_COLOR_SELECTED,
  73        GREP_COLOR_SEP,
  74        NR_GREP_COLORS
  75};
  76
  77struct grep_pat {
  78        struct grep_pat *next;
  79        const char *origin;
  80        int no;
  81        enum grep_pat_token token;
  82        char *pattern;
  83        size_t patternlen;
  84        enum grep_header_field field;
  85        regex_t regexp;
  86        pcre *pcre1_regexp;
  87        pcre_extra *pcre1_extra_info;
  88        pcre_jit_stack *pcre1_jit_stack;
  89        const unsigned char *pcre1_tables;
  90        int pcre1_jit_on;
  91        pcre2_code *pcre2_pattern;
  92        pcre2_match_data *pcre2_match_data;
  93        pcre2_compile_context *pcre2_compile_context;
  94        pcre2_match_context *pcre2_match_context;
  95        pcre2_jit_stack *pcre2_jit_stack;
  96        uint32_t pcre2_jit_on;
  97        kwset_t kws;
  98        unsigned fixed:1;
  99        unsigned ignore_case:1;
 100        unsigned word_regexp:1;
 101};
 102
 103enum grep_expr_node {
 104        GREP_NODE_ATOM,
 105        GREP_NODE_NOT,
 106        GREP_NODE_AND,
 107        GREP_NODE_TRUE,
 108        GREP_NODE_OR
 109};
 110
 111enum grep_pattern_type {
 112        GREP_PATTERN_TYPE_UNSPECIFIED = 0,
 113        GREP_PATTERN_TYPE_BRE,
 114        GREP_PATTERN_TYPE_ERE,
 115        GREP_PATTERN_TYPE_FIXED,
 116        GREP_PATTERN_TYPE_PCRE
 117};
 118
 119struct grep_expr {
 120        enum grep_expr_node node;
 121        unsigned hit;
 122        union {
 123                struct grep_pat *atom;
 124                struct grep_expr *unary;
 125                struct {
 126                        struct grep_expr *left;
 127                        struct grep_expr *right;
 128                } binary;
 129        } u;
 130};
 131
 132struct grep_opt {
 133        struct grep_pat *pattern_list;
 134        struct grep_pat **pattern_tail;
 135        struct grep_pat *header_list;
 136        struct grep_pat **header_tail;
 137        struct grep_expr *pattern_expression;
 138        const char *prefix;
 139        int prefix_length;
 140        regex_t regexp;
 141        int linenum;
 142        int invert;
 143        int ignore_case;
 144        int status_only;
 145        int name_only;
 146        int unmatch_name_only;
 147        int count;
 148        int word_regexp;
 149        int fixed;
 150        int all_match;
 151        int debug;
 152#define GREP_BINARY_DEFAULT     0
 153#define GREP_BINARY_NOMATCH     1
 154#define GREP_BINARY_TEXT        2
 155        int binary;
 156        int allow_textconv;
 157        int extended;
 158        int use_reflog_filter;
 159        int pcre1;
 160        int pcre2;
 161        int relative;
 162        int pathname;
 163        int null_following_name;
 164        int color;
 165        int max_depth;
 166        int funcname;
 167        int funcbody;
 168        int extended_regexp_option;
 169        int pattern_type_option;
 170        char colors[NR_GREP_COLORS][COLOR_MAXLEN];
 171        unsigned pre_context;
 172        unsigned post_context;
 173        unsigned last_shown;
 174        int show_hunk_mark;
 175        int file_break;
 176        int heading;
 177        void *priv;
 178
 179        void (*output)(struct grep_opt *opt, const void *data, size_t size);
 180        void *output_priv;
 181};
 182
 183extern void init_grep_defaults(void);
 184extern int grep_config(const char *var, const char *value, void *);
 185extern void grep_init(struct grep_opt *, const char *prefix);
 186void grep_commit_pattern_type(enum grep_pattern_type, struct grep_opt *opt);
 187
 188extern void append_grep_pat(struct grep_opt *opt, const char *pat, size_t patlen, const char *origin, int no, enum grep_pat_token t);
 189extern void append_grep_pattern(struct grep_opt *opt, const char *pat, const char *origin, int no, enum grep_pat_token t);
 190extern void append_header_grep_pattern(struct grep_opt *, enum grep_header_field, const char *);
 191extern void compile_grep_patterns(struct grep_opt *opt);
 192extern void free_grep_patterns(struct grep_opt *opt);
 193extern int grep_buffer(struct grep_opt *opt, char *buf, unsigned long size);
 194
 195struct grep_source {
 196        char *name;
 197
 198        enum grep_source_type {
 199                GREP_SOURCE_OID,
 200                GREP_SOURCE_FILE,
 201                GREP_SOURCE_BUF,
 202        } type;
 203        void *identifier;
 204
 205        char *buf;
 206        unsigned long size;
 207
 208        char *path; /* for attribute lookups */
 209        struct userdiff_driver *driver;
 210};
 211
 212void grep_source_init(struct grep_source *gs, enum grep_source_type type,
 213                      const char *name, const char *path,
 214                      const void *identifier);
 215void grep_source_clear_data(struct grep_source *gs);
 216void grep_source_clear(struct grep_source *gs);
 217void grep_source_load_driver(struct grep_source *gs);
 218
 219
 220int grep_source(struct grep_opt *opt, struct grep_source *gs);
 221
 222extern struct grep_opt *grep_opt_dup(const struct grep_opt *opt);
 223extern int grep_threads_ok(const struct grep_opt *opt);
 224
 225#ifndef NO_PTHREADS
 226/*
 227 * Mutex used around access to the attributes machinery if
 228 * opt->use_threads.  Must be initialized/destroyed by callers!
 229 */
 230extern int grep_use_locks;
 231extern pthread_mutex_t grep_attr_mutex;
 232extern pthread_mutex_t grep_read_mutex;
 233
 234static inline void grep_read_lock(void)
 235{
 236        if (grep_use_locks)
 237                pthread_mutex_lock(&grep_read_mutex);
 238}
 239
 240static inline void grep_read_unlock(void)
 241{
 242        if (grep_use_locks)
 243                pthread_mutex_unlock(&grep_read_mutex);
 244}
 245
 246#else
 247#define grep_read_lock()
 248#define grep_read_unlock()
 249#endif
 250
 251#endif