Remarks on UTF-8/16

otto.go

@@ -88,6 +88,7 @@ Caveat Emptor
 * Number.prototype.{toFixed,toExponential,toPrecision} are missing.
 * Does not support the (?!) or (?=) regular expression syntax (because Go does not)
 * Really, error reporting could use some improvement.
+* For now, otto handles strings as UTF-8 rather than UTF-16.
 
 Regular Expression Syntax
 
@@ -97,6 +98,11 @@ Unfortunately, JavaScript has positive and negative lookahead, which is not supp
 
 A brief discussion of this limitation: "Regexp (?!re)" https://groups.google.com/forum/?fromgroups=#!topic/golang-nuts/7qgSDWPIh_E
 
+UTF-8 UTF-16
+
+Internally, otto stores strings as Go does, which is UTF-8. JavaScript calls for strings to be handled as UTF-16.
+This leads to some strange edge cases, such as a UTF-8 string having a length of 5, while the "same" string as UTF-16 has a length of 3.
+
 */
 package otto