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