1 files changed, 16 insertions, 0 deletions
diff --git a/diff.h b/diff.h
index e0a3207a62..aebf3f1ab5 100644
--- a/diff.h
+++ b/diff.h
@@ -82,4 +82,20 @@ extern int diff_queue_is_empty(void);
 
 extern void diff_flush(int output_style, int line_terminator);
 
+/* diff-raw status letters */
+#define DIFF_STATUS_ADDED		'N'
+#define DIFF_STATUS_COPIED		'C'
+#define DIFF_STATUS_DELETED		'D'
+#define DIFF_STATUS_MODIFIED		'M'
+#define DIFF_STATUS_RENAMED		'R'
+#define DIFF_STATUS_TYPE_CHANGED	'T'
+#define DIFF_STATUS_UNKNOWN		'X'
+#define DIFF_STATUS_UNMERGED		'U'
+
+/* these are not diff-raw status letters proper, but used by
+ * diffcore-filter insn to specify additional restrictions.
+ */
+#define DIFF_STATUS_FILTER_AON		'A'
+#define DIFF_STATUS_FILTER_BROKEN	'B'
+
 #endif /* DIFF_H */