grep.h

   1 #ifndef GREP_H
   2 #define GREP_H
   3 #include "color.h"
   4 #ifdef USE_LIBPCRE2
   5 #define PCRE2_CODE_UNIT_WIDTH 8
   6 #include <pcre2.h>
   7 #else
   8 typedef int pcre2_code;
   9 typedef int pcre2_match_data;
  10 typedef int pcre2_compile_context;
  11 #endif
  12 #ifndef PCRE2_MATCH_INVALID_UTF
  13 /* PCRE2_MATCH_* dummy also with !USE_LIBPCRE2, for test-pcre2-config.c */
  14 #define PCRE2_MATCH_INVALID_UTF 0
  15 #endif
  16 #include "thread-utils.h"
  17 #include "userdiff.h"
  18
  19 struct repository;
  20
  21 enum grep_pat_token {
  22         GREP_PATTERN,
  23         GREP_PATTERN_HEAD,
  24         GREP_PATTERN_BODY,
  25         GREP_AND,
  26         GREP_OPEN_PAREN,
  27         GREP_CLOSE_PAREN,
  28         GREP_NOT,
  29         GREP_OR
  30 };
  31
  32 enum grep_context {
  33         GREP_CONTEXT_HEAD,
  34         GREP_CONTEXT_BODY
  35 };
  36
  37 enum grep_header_field {
  38         GREP_HEADER_FIELD_MIN = 0,
  39         GREP_HEADER_AUTHOR = GREP_HEADER_FIELD_MIN,
  40         GREP_HEADER_COMMITTER,
  41         GREP_HEADER_REFLOG,
  42
  43         /* Must be at the end of the enum */
  44         GREP_HEADER_FIELD_MAX
  45 };
  46
  47 enum grep_color {
  48         GREP_COLOR_CONTEXT,
  49         GREP_COLOR_FILENAME,
  50         GREP_COLOR_FUNCTION,
  51         GREP_COLOR_LINENO,
  52         GREP_COLOR_COLUMNNO,
  53         GREP_COLOR_MATCH_CONTEXT,
  54         GREP_COLOR_MATCH_SELECTED,
  55         GREP_COLOR_SELECTED,
  56         GREP_COLOR_SEP,
  57         NR_GREP_COLORS
  58 };
  59
  60 struct grep_pat {
  61         struct grep_pat *next;
  62         const char *origin;
  63         int no;
  64         enum grep_pat_token token;
  65         char *pattern;
  66         size_t patternlen;
  67         enum grep_header_field field;
  68         regex_t regexp;
  69         pcre2_code *pcre2_pattern;
  70         pcre2_match_data *pcre2_match_data;
  71         pcre2_compile_context *pcre2_compile_context;
  72         const uint8_t *pcre2_tables;
  73         uint32_t pcre2_jit_on;
  74         unsigned fixed:1;
  75         unsigned is_fixed:1;
  76         unsigned ignore_case:1;
  77         unsigned word_regexp:1;
  78 };
  79
  80 enum grep_expr_node {
  81         GREP_NODE_ATOM,
  82         GREP_NODE_NOT,
  83         GREP_NODE_AND,
  84         GREP_NODE_TRUE,
  85         GREP_NODE_OR
  86 };
  87
  88 enum grep_pattern_type {
  89         GREP_PATTERN_TYPE_UNSPECIFIED = 0,
  90         GREP_PATTERN_TYPE_BRE,
  91         GREP_PATTERN_TYPE_ERE,
  92         GREP_PATTERN_TYPE_FIXED,
  93         GREP_PATTERN_TYPE_PCRE
  94 };
  95
  96 struct grep_expr {
  97         enum grep_expr_node node;
  98         unsigned hit;
  99         union {
 100                 struct grep_pat *atom;
 101                 struct grep_expr *unary;
 102                 struct {
 103                         struct grep_expr *left;
 104                         struct grep_expr *right;
 105                 } binary;
 106         } u;
 107 };
 108
 109 struct grep_opt {
 110         struct grep_pat *pattern_list;
 111         struct grep_pat **pattern_tail;
 112         struct grep_pat *header_list;
 113         struct grep_pat **header_tail;
 114         struct grep_expr *pattern_expression;
 115         struct repository *repo;
 116         const char *prefix;
 117         int prefix_length;
 118         regex_t regexp;
 119         int linenum;
 120         int columnnum;
 121         int invert;
 122         int ignore_case;
 123         int status_only;
 124         int name_only;
 125         int unmatch_name_only;
 126         int count;
 127         int word_regexp;
 128         int fixed;
 129         int all_match;
 130 #define GREP_BINARY_DEFAULT     0
 131 #define GREP_BINARY_NOMATCH     1
 132 #define GREP_BINARY_TEXT        2
 133         int binary;
 134         int allow_textconv;
 135         int extended;
 136         int use_reflog_filter;
 137         int pcre2;
 138         int relative;
 139         int pathname;
 140         int null_following_name;
 141         int only_matching;
 142         int color;
 143         int max_depth;
 144         int funcname;
 145         int funcbody;
 146         int extended_regexp_option;
 147         int pattern_type_option;
 148         int ignore_locale;
 149         char colors[NR_GREP_COLORS][COLOR_MAXLEN];
 150         unsigned pre_context;
 151         unsigned post_context;
 152         unsigned last_shown;
 153         int show_hunk_mark;
 154         int file_break;
 155         int heading;
 156         void *priv;
 157
 158         void (*output)(struct grep_opt *opt, const void *data, size_t size);
 159         void *output_priv;
 160 };
 161
 162 int grep_config(const char *var, const char *value, void *);
 163 void grep_init(struct grep_opt *, struct repository *repo, const char *prefix);
 164 void grep_destroy(void);
 165 void grep_commit_pattern_type(enum grep_pattern_type, struct grep_opt *opt);
 166
 167 void append_grep_pat(struct grep_opt *opt, const char *pat, size_t patlen, const char *origin, int no, enum grep_pat_token t);
 168 void append_grep_pattern(struct grep_opt *opt, const char *pat, const char *origin, int no, enum grep_pat_token t);
 169 void append_header_grep_pattern(struct grep_opt *, enum grep_header_field, const char *);
 170 void compile_grep_patterns(struct grep_opt *opt);
 171 void free_grep_patterns(struct grep_opt *opt);
 172 int grep_buffer(struct grep_opt *opt, char *buf, unsigned long size);
 173
 174 struct grep_source {
 175         char *name;
 176
 177         enum grep_source_type {
 178                 GREP_SOURCE_OID,
 179                 GREP_SOURCE_FILE,
 180                 GREP_SOURCE_BUF,
 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
 191 void grep_source_init(struct grep_source *gs, enum grep_source_type type,
 192                       const char *name, const char *path,
 193                       const void *identifier);
 194 void grep_source_clear_data(struct grep_source *gs);
 195 void grep_source_clear(struct grep_source *gs);
 196 void grep_source_load_driver(struct grep_source *gs,
 197                              struct index_state *istate);
 198
 199
 200 int grep_source(struct grep_opt *opt, struct grep_source *gs);
 201
 202 struct grep_opt *grep_opt_dup(const struct grep_opt *opt);
 203 int grep_threads_ok(const struct grep_opt *opt);
 204
 205 /*
 206  * Mutex used around access to the attributes machinery if
 207  * opt->use_threads.  Must be initialized/destroyed by callers!
 208  */
 209 extern int grep_use_locks;
 210 extern pthread_mutex_t grep_attr_mutex;
 211
 212 #endif