diff.c: emit_diff_symbol learns DIFF_SYMBOL_HEADER

diff --git a/diff.h b/diff.h
index 0d0c14f285dc94d8727a5851f57ace8819453762..ea66168454060199c61568e4ec88c549c54c1d84 100644 (file)
--- a/diff.h
+++ b/diff.h
@@ -148,9 +148,9 @@ struct diff_options {
        int abbrev;
        int ita_invisible_in_index;
 /* white-space error highlighting */
-#define WSEH_NEW 1
-#define WSEH_CONTEXT 2
-#define WSEH_OLD 4
+#define WSEH_NEW (1<<12)
+#define WSEH_CONTEXT (1<<13)
+#define WSEH_OLD (1<<14)
        unsigned ws_error_highlight;
        const char *prefix;
        int prefix_length;
@@ -385,6 +385,13 @@ extern size_t fill_textconv(struct userdiff_driver *driver,
  */
 extern struct userdiff_driver *get_textconv(struct diff_filespec *one);
 
+/*
+ * Prepare diff_filespec and convert it using diff textconv API
+ * if the textconv driver exists.
+ * Return 1 if the conversion succeeds, 0 otherwise.
+ */
+extern int textconv_object(const char *path, unsigned mode, const struct object_id *oid, int oid_valid, char **buf, unsigned long *buf_size);
+
 extern int parse_rename_score(const char **cp_p);
 
 extern long parse_algorithm_value(const char *value);