Andrew's git - gitweb.git/blob

   1#ifndef GREP_H
   2#define GREP_H
   3#include "color.h"
   4
   5enum 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
  16enum grep_context {
  17        GREP_CONTEXT_HEAD,
  18        GREP_CONTEXT_BODY,
  19};
  20
  21enum grep_header_field {
  22        GREP_HEADER_AUTHOR = 0,
  23        GREP_HEADER_COMMITTER,
  24};
  25
  26struct 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 word_regexp:1;
  36};
  37
  38enum grep_expr_node {
  39        GREP_NODE_ATOM,
  40        GREP_NODE_NOT,
  41        GREP_NODE_AND,
  42        GREP_NODE_OR,
  43};
  44
  45struct grep_expr {
  46        enum grep_expr_node node;
  47        unsigned hit;
  48        union {
  49                struct grep_pat *atom;
  50                struct grep_expr *unary;
  51                struct {
  52                        struct grep_expr *left;
  53                        struct grep_expr *right;
  54                } binary;
  55        } u;
  56};
  57
  58struct grep_opt {
  59        struct grep_pat *pattern_list;
  60        struct grep_pat **pattern_tail;
  61        struct grep_expr *pattern_expression;
  62        int prefix_length;
  63        regex_t regexp;
  64        unsigned linenum:1;
  65        unsigned invert:1;
  66        unsigned status_only:1;
  67        unsigned name_only:1;
  68        unsigned unmatch_name_only:1;
  69        unsigned count:1;
  70        unsigned word_regexp:1;
  71        unsigned fixed:1;
  72        unsigned all_match:1;
  73#define GREP_BINARY_DEFAULT     0
  74#define GREP_BINARY_NOMATCH     1
  75#define GREP_BINARY_TEXT        2
  76        unsigned binary:2;
  77        unsigned extended:1;
  78        unsigned relative:1;
  79        unsigned pathname:1;
  80        unsigned null_following_name:1;
  81        int color;
  82        char color_match[COLOR_MAXLEN];
  83        const char *color_external;
  84        int regflags;
  85        unsigned pre_context;
  86        unsigned post_context;
  87};
  88
  89extern void append_grep_pattern(struct grep_opt *opt, const char *pat, const char *origin, int no, enum grep_pat_token t);
  90extern void append_header_grep_pattern(struct grep_opt *, enum grep_header_field, const char *);
  91extern void compile_grep_patterns(struct grep_opt *opt);
  92extern void free_grep_patterns(struct grep_opt *opt);
  93extern int grep_buffer(struct grep_opt *opt, const char *name, char *buf, unsigned long size);
  94
  95#endif