diff: reject unknown change class given to --diff-filter

diff --git a/diff.h b/diff.h
index 76830e28b42ab623ef9dc1d23c4b82b952fadd3a..a36720752f08fc26ca2ada0b2688b726518e13d6 100644 (file)
--- a/diff.h
+++ b/diff.h
@@ -103,12 +103,15 @@ enum diff_words_type {
 };
 
 struct diff_options {
-       const char *filter;
        const char *orderfile;
        const char *pickaxe;
        const char *single_follow;
        const char *a_prefix, *b_prefix;
        unsigned flags;
+
+       /* diff-filter bits */
+       unsigned int filter;
+
        int use_color;
        int context;
        int interhunkcontext;
@@ -336,6 +339,8 @@ extern struct userdiff_driver *get_textconv(struct diff_filespec *one);
 
 extern int parse_rename_score(const char **cp_p);
 
+extern long parse_algorithm_value(const char *value);
+
 extern int print_stat_summary(FILE *fp, int files,
                              int insertions, int deletions);
 extern void setup_diff_pager(struct diff_options *);