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 #include "kwset.h"
  11
  12 enum grep_pat_token {
  13         GREP_PATTERN,
  14         GREP_PATTERN_HEAD,
  15         GREP_PATTERN_BODY,
  16         GREP_AND,
  17         GREP_OPEN_PAREN,
  18         GREP_CLOSE_PAREN,
  19         GREP_NOT,
  20         GREP_OR
  21 };
  22
  23 enum grep_context {
  24         GREP_CONTEXT_HEAD,
  25         GREP_CONTEXT_BODY
  26 };
  27
  28 enum grep_header_field {
  29         GREP_HEADER_AUTHOR = 0,
  30         GREP_HEADER_COMMITTER
  31 };
  32 #define GREP_HEADER_FIELD_MAX (GREP_HEADER_COMMITTER + 1)
  33
  34 struct grep_pat {
  35         struct grep_pat *next;
  36         const char *origin;
  37         int no;
  38         enum grep_pat_token token;
  39         const char *pattern;
  40         size_t patternlen;
  41         enum grep_header_field field;
  42         regex_t regexp;
  43         pcre *pcre_regexp;
  44         pcre_extra *pcre_extra_info;
  45         kwset_t kws;
  46         unsigned fixed:1;
  47         unsigned ignore_case:1;
  48         unsigned word_regexp:1;
  49 };
  50
  51 enum grep_expr_node {
  52         GREP_NODE_ATOM,
  53         GREP_NODE_NOT,
  54         GREP_NODE_AND,
  55         GREP_NODE_TRUE,
  56         GREP_NODE_OR
  57 };
  58
  59 struct grep_expr {
  60         enum grep_expr_node node;
  61         unsigned hit;
  62         union {
  63                 struct grep_pat *atom;
  64                 struct grep_expr *unary;
  65                 struct {
  66                         struct grep_expr *left;
  67                         struct grep_expr *right;
  68                 } binary;
  69         } u;
  70 };
  71
  72 struct grep_opt {
  73         struct grep_pat *pattern_list;
  74         struct grep_pat **pattern_tail;
  75         struct grep_pat *header_list;
  76         struct grep_pat **header_tail;
  77         struct grep_expr *pattern_expression;
  78         const char *prefix;
  79         int prefix_length;
  80         regex_t regexp;
  81         int linenum;
  82         int invert;
  83         int ignore_case;
  84         int status_only;
  85         int name_only;
  86         int unmatch_name_only;
  87         int count;
  88         int word_regexp;
  89         int fixed;
  90         int all_match;
  91 #define GREP_BINARY_DEFAULT     0
  92 #define GREP_BINARY_NOMATCH     1
  93 #define GREP_BINARY_TEXT        2
  94         int binary;
  95         int extended;
  96         int pcre;
  97         int relative;
  98         int pathname;
  99         int null_following_name;
 100         int color;
 101         int max_depth;
 102         int funcname;
 103         int funcbody;
 104         char color_context[COLOR_MAXLEN];
 105         char color_filename[COLOR_MAXLEN];
 106         char color_function[COLOR_MAXLEN];
 107         char color_lineno[COLOR_MAXLEN];
 108         char color_match[COLOR_MAXLEN];
 109         char color_selected[COLOR_MAXLEN];
 110         char color_sep[COLOR_MAXLEN];
 111         int regflags;
 112         unsigned pre_context;
 113         unsigned post_context;
 114         unsigned last_shown;
 115         int show_hunk_mark;
 116         int file_break;
 117         int heading;
 118         void *priv;
 119
 120         void (*output)(struct grep_opt *opt, const void *data, size_t size);
 121         void *output_priv;
 122 };
 123
 124 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);
 125 extern void append_grep_pattern(struct grep_opt *opt, const char *pat, const char *origin, int no, enum grep_pat_token t);
 126 extern void append_header_grep_pattern(struct grep_opt *, enum grep_header_field, const char *);
 127 extern void compile_grep_patterns(struct grep_opt *opt);
 128 extern void free_grep_patterns(struct grep_opt *opt);
 129 extern int grep_buffer(struct grep_opt *opt, const char *name, char *buf, unsigned long size);
 130
 131 extern struct grep_opt *grep_opt_dup(const struct grep_opt *opt);
 132 extern int grep_threads_ok(const struct grep_opt *opt);
 133
 134 #endif