grep.h

   1 #ifndef GREP_H
   2 #define GREP_H
   3 #include "color.h"
   4
   5 enum grep_pat_token {
   6         GREP_PATTERN,
   7         GREP_PATTERN_HEAD,
   8         GREP_PATTERN_BODY,
   9         GREP_AND,
  10         GREP_OPEN_PAREN,
  11         GREP_CLOSE_PAREN,
  12         GREP_NOT,
  13         GREP_OR,
  14 };
  15
  16 enum grep_context {
  17         GREP_CONTEXT_HEAD,
  18         GREP_CONTEXT_BODY,
  19 };
  20
  21 enum grep_header_field {
  22         GREP_HEADER_AUTHOR = 0,
  23         GREP_HEADER_COMMITTER,
  24 };
  25
  26 struct grep_pat {
  27         struct grep_pat *next;
  28         const char *origin;
  29         int no;
  30         enum grep_pat_token token;
  31         const char *pattern;
  32         enum grep_header_field field;
  33         regex_t regexp;
  34         unsigned fixed:1;
  35         unsigned ignore_case:1;
  36         unsigned word_regexp:1;
  37 };
  38
  39 enum grep_expr_node {
  40         GREP_NODE_ATOM,
  41         GREP_NODE_NOT,
  42         GREP_NODE_AND,
  43         GREP_NODE_OR,
  44 };
  45
  46 struct grep_expr {
  47         enum grep_expr_node node;
  48         unsigned hit;
  49         union {
  50                 struct grep_pat *atom;
  51                 struct grep_expr *unary;
  52                 struct {
  53                         struct grep_expr *left;
  54                         struct grep_expr *right;
  55                 } binary;
  56         } u;
  57 };
  58
  59 struct grep_opt {
  60         struct grep_pat *pattern_list;
  61         struct grep_pat **pattern_tail;
  62         struct grep_expr *pattern_expression;
  63         const char *prefix;
  64         int prefix_length;
  65         regex_t regexp;
  66         int linenum;
  67         int invert;
  68         int ignore_case;
  69         int status_only;
  70         int name_only;
  71         int unmatch_name_only;
  72         int count;
  73         int word_regexp;
  74         int fixed;
  75         int all_match;
  76 #define GREP_BINARY_DEFAULT     0
  77 #define GREP_BINARY_NOMATCH     1
  78 #define GREP_BINARY_TEXT        2
  79         int binary;
  80         int extended;
  81         int relative;
  82         int pathname;
  83         int null_following_name;
  84         int color;
  85         int max_depth;
  86         int funcname;
  87         char color_match[COLOR_MAXLEN];
  88         int regflags;
  89         unsigned pre_context;
  90         unsigned post_context;
  91         unsigned last_shown;
  92         int show_hunk_mark;
  93         void *priv;
  94
  95         void (*output)(struct grep_opt *opt, const void *data, size_t size);
  96         void *output_priv;
  97 };
  98
  99 extern void append_grep_pattern(struct grep_opt *opt, const char *pat, const char *origin, int no, enum grep_pat_token t);
 100 extern void append_header_grep_pattern(struct grep_opt *, enum grep_header_field, const char *);
 101 extern void compile_grep_patterns(struct grep_opt *opt);
 102 extern void free_grep_patterns(struct grep_opt *opt);
 103 extern int grep_buffer(struct grep_opt *opt, const char *name, char *buf, unsigned long size);
 104
 105 extern struct grep_opt *grep_opt_dup(const struct grep_opt *opt);
 106 extern int grep_threads_ok(const struct grep_opt *opt);
 107
 108 #endif