1 files changed, 6 insertions, 1 deletions
diff --git a/UTF8.mli b/UTF8.mli
index c1fa400..9e957ac 100755
--- a/UTF8.mli
+++ b/UTF8.mli
@@ -16,7 +16,12 @@ val decode: string -> t
 val from_utf8string: string -> t
 
 (** Encode to the string to the user locale *)
-val encode: t -> string
+val encode: t -> string option
+
+(** Encode the string.
+    This function may raise Text.Invalid if the string cannot be encoded in current locale
+*)
+val raw_encode: t -> string
 
 val to_utf8string: t -> string