1 files changed, 4 insertions, 0 deletions
diff --git a/text.h b/text.h
index 2343085..4f7c4dc 100644
--- a/text.h
+++ b/text.h
@@ -12,6 +12,10 @@ typedef struct {
 	size_t start, end;        /* range in bytes from start of the file */
 } Filerange;
 
+bool text_range_valid(Filerange*);
+Filerange text_range_empty(void);
+Filerange text_range_union(Filerange*, Filerange*);
+
 typedef struct Text Text;
 typedef struct Piece Piece;