grep.h

   1 #ifndef GREP_H
   2 #define GREP_H
   3 #include "color.h"
   4 #ifdef USE_LIBPCRE
   5 #include <pcre.h>
   6 #else
   7 typedef int pcre;
   8 typedef int pcre_extra;
   9 #endif
  10
  11 enum grep_pat_token {
  12         GREP_PATTERN,
  13         GREP_PATTERN_HEAD,
  14         GREP_PATTERN_BODY,
  15         GREP_AND,
  16         GREP_OPEN_PAREN,
  17         GREP_CLOSE_PAREN,
  18         GREP_NOT,
  19         GREP_OR
  20 };
  21
  22 enum grep_context {
  23         GREP_CONTEXT_HEAD,
  24         GREP_CONTEXT_BODY
  25 };
  26
  27 enum grep_header_field {
  28         GREP_HEADER_AUTHOR = 0,
  29         GREP_HEADER_COMMITTER
  30 };
  31 #define GREP_HEADER_FIELD_MAX (GREP_HEADER_COMMITTER + 1)
  32
  33 struct grep_pat {
  34         struct grep_pat *next;
  35         const char *origin;
  36         int no;
  37         enum grep_pat_token token;
  38         const char *pattern;
  39         size_t patternlen;
  40         enum grep_header_field field;
  41         regex_t regexp;
  42         pcre *pcre_regexp;
  43         pcre_extra *pcre_extra_info;
  44         unsigned fixed:1;
  45         unsigned ignore_case:1;
  46         unsigned word_regexp:1;
  47 };
  48
  49 enum grep_expr_node {
  50         GREP_NODE_ATOM,
  51         GREP_NODE_NOT,
  52         GREP_NODE_AND,
  53         GREP_NODE_TRUE,
  54         GREP_NODE_OR
  55 };
  56
  57 struct grep_expr {
  58         enum grep_expr_node node;
  59         unsigned hit;
  60         union {
  61                 struct grep_pat *atom;
  62                 struct grep_expr *unary;
  63                 struct {
  64                         struct grep_expr *left;
  65                         struct grep_expr *right;
  66                 } binary;
  67         } u;
  68 };
  69
  70 struct grep_opt {
  71         struct grep_pat *pattern_list;
  72         struct grep_pat **pattern_tail;
  73         struct grep_pat *header_list;
  74         struct grep_pat **header_tail;
  75         struct grep_expr *pattern_expression;
  76         const char *prefix;
  77         int prefix_length;
  78         regex_t regexp;
  79         int linenum;
  80         int invert;
  81         int ignore_case;
  82         int status_only;
  83         int name_only;
  84         int unmatch_name_only;
  85         int count;
  86         int word_regexp;
  87         int fixed;
  88         int all_match;
  89 #define GREP_BINARY_DEFAULT     0
  90 #define GREP_BINARY_NOMATCH     1
  91 #define GREP_BINARY_TEXT        2
  92         int binary;
  93         int extended;
  94         int pcre;
  95         int relative;
  96         int pathname;
  97         int null_following_name;
  98         int color;
  99         int max_depth;
 100         int funcname;
 101         int funcbody;
 102         char color_context[COLOR_MAXLEN];
 103         char color_filename[COLOR_MAXLEN];
 104         char color_function[COLOR_MAXLEN];
 105         char color_lineno[COLOR_MAXLEN];
 106         char color_match[COLOR_MAXLEN];
 107         char color_selected[COLOR_MAXLEN];
 108         char color_sep[COLOR_MAXLEN];
 109         int regflags;
 110         unsigned pre_context;
 111         unsigned post_context;
 112         unsigned last_shown;
 113         int show_hunk_mark;
 114         int file_break;
 115         int heading;
 116         void *priv;
 117
 118         void (*output)(struct grep_opt *opt, const void *data, size_t size);
 119         void *output_priv;
 120 };
 121
 122 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);
 123 extern void append_grep_pattern(struct grep_opt *opt, const char *pat, const char *origin, int no, enum grep_pat_token t);
 124 extern void append_header_grep_pattern(struct grep_opt *, enum grep_header_field, const char *);
 125 extern void compile_grep_patterns(struct grep_opt *opt);
 126 extern void free_grep_patterns(struct grep_opt *opt);
 127 extern int grep_buffer(struct grep_opt *opt, const char *name, char *buf, unsigned long size);
 128
 129 extern struct grep_opt *grep_opt_dup(const struct grep_opt *opt);
 130 extern int grep_threads_ok(const struct grep_opt *opt);
 131
 132 #endif