+Property value is a character or nil.
+The value nil means that the actual property value of a character
+is the character itself.")
+;; FILE: uni-mirrored.el
+(define-char-code-property 'mirroring "uni-mirrored.el"
+ "Unicode bidi-mirroring characters.
+Property value is a character that has the corresponding mirroring image or nil.
+The value nil means that the actual property value of a character
+is the character itself.")