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 #define GREP_HEADER_FIELD_MAX (GREP_HEADER_COMMITTER + 1)
  26
  27 struct grep_pat {
  28         struct grep_pat *next;
  29         const char *origin;
  30         int no;
  31         enum grep_pat_token token;
  32         const char *pattern;
  33         size_t patternlen;
  34         enum grep_header_field field;
  35         regex_t regexp;
  36         unsigned fixed:1;
  37         unsigned ignore_case:1;
  38         unsigned word_regexp:1;
  39 };
  40
  41 enum grep_expr_node {
  42         GREP_NODE_ATOM,
  43         GREP_NODE_NOT,
  44         GREP_NODE_AND,
  45         GREP_NODE_TRUE,
  46         GREP_NODE_OR
  47 };
  48
  49 struct grep_expr {
  50         enum grep_expr_node node;
  51         unsigned hit;
  52         union {
  53                 struct grep_pat *atom;
  54                 struct grep_expr *unary;
  55                 struct {
  56                         struct grep_expr *left;
  57                         struct grep_expr *right;
  58                 } binary;
  59         } u;
  60 };
  61
  62 struct grep_opt {
  63         struct grep_pat *pattern_list;
  64         struct grep_pat **pattern_tail;
  65         struct grep_pat *header_list;
  66         struct grep_pat **header_tail;
  67         struct grep_expr *pattern_expression;
  68         const char *prefix;
  69         int prefix_length;
  70         regex_t regexp;
  71         int linenum;
  72         int invert;
  73         int ignore_case;
  74         int status_only;
  75         int name_only;
  76         int unmatch_name_only;
  77         int count;
  78         int word_regexp;
  79         int fixed;
  80         int all_match;
  81 #define GREP_BINARY_DEFAULT     0
  82 #define GREP_BINARY_NOMATCH     1
  83 #define GREP_BINARY_TEXT        2
  84         int binary;
  85         int extended;
  86         int relative;
  87         int pathname;
  88         int null_following_name;
  89         int color;
  90         int max_depth;
  91         int funcname;
  92         char color_context[COLOR_MAXLEN];
  93         char color_filename[COLOR_MAXLEN];
  94         char color_function[COLOR_MAXLEN];
  95         char color_lineno[COLOR_MAXLEN];
  96         char color_match[COLOR_MAXLEN];
  97         char color_selected[COLOR_MAXLEN];
  98         char color_sep[COLOR_MAXLEN];
  99         int regflags;
 100         unsigned pre_context;
 101         unsigned post_context;
 102         unsigned last_shown;
 103         int show_hunk_mark;
 104         void *priv;
 105
 106         void (*output)(struct grep_opt *opt, const void *data, size_t size);
 107         void *output_priv;
 108 };
 109
 110 extern void append_grep_pat(struct grep_opt *opt, const char *pat, size_t patlen, const char *origin, int no, enum grep_pat_token t);
 111 extern void append_grep_pattern(struct grep_opt *opt, const char *pat, const char *origin, int no, enum grep_pat_token t);
 112 extern void append_header_grep_pattern(struct grep_opt *, enum grep_header_field, const char *);
 113 extern void compile_grep_patterns(struct grep_opt *opt);
 114 extern void free_grep_patterns(struct grep_opt *opt);
 115 extern int grep_buffer(struct grep_opt *opt, const char *name, char *buf, unsigned long size);
 116
 117 extern struct grep_opt *grep_opt_dup(const struct grep_opt *opt);
 118 extern int grep_threads_ok(const struct grep_opt *opt);
 119
 120 #endif