doc: technical details about the index file format

diff --git a/grep.h b/grep.h
index 89342e5b47f6d63dd546e738e4cbf023c447b382..efa8cff980af2b2c06dad080876637d16b5c4985 100644 (file)
--- a/grep.h
+++ b/grep.h
@@ -10,17 +10,17 @@ enum grep_pat_token {
        GREP_OPEN_PAREN,
        GREP_CLOSE_PAREN,
        GREP_NOT,
-       GREP_OR,
+       GREP_OR
 };
 
 enum grep_context {
        GREP_CONTEXT_HEAD,
-       GREP_CONTEXT_BODY,
+       GREP_CONTEXT_BODY
 };
 
 enum grep_header_field {
        GREP_HEADER_AUTHOR = 0,
-       GREP_HEADER_COMMITTER,
+       GREP_HEADER_COMMITTER
 };
 
 struct grep_pat {
@@ -29,6 +29,7 @@ struct grep_pat {
        int no;
        enum grep_pat_token token;
        const char *pattern;
+       size_t patternlen;
        enum grep_header_field field;
        regex_t regexp;
        unsigned fixed:1;
@@ -40,7 +41,7 @@ enum grep_expr_node {
        GREP_NODE_ATOM,
        GREP_NODE_NOT,
        GREP_NODE_AND,
-       GREP_NODE_OR,
+       GREP_NODE_OR
 };
 
 struct grep_expr {
@@ -104,6 +105,7 @@ struct grep_opt {
        void *output_priv;
 };
 
+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);
 extern void append_grep_pattern(struct grep_opt *opt, const char *pat, const char *origin, int no, enum grep_pat_token t);
 extern void append_header_grep_pattern(struct grep_opt *, enum grep_header_field, const char *);
 extern void compile_grep_patterns(struct grep_opt *opt);