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