diff: allow lowercase letter to specify what change class to exclude

diff --git a/diff.h b/diff.h
index 54c2590b4f81ed2cc370f1b8b16db8cd07ea9f64..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;
@@ -174,6 +177,9 @@ const char *diff_get_color(int diff_use_color, enum color_diff ix);
        diff_get_color((o)->use_color, ix)
 
 
+const char *diff_line_prefix(struct diff_options *);
+
+
 extern const char mime_boundary_leader[];
 
 extern void diff_tree_setup_paths(const char **paths, struct diff_options *);