Simplified/Traditional Chinese conversion tool

 The Chinese national GB standard defines a basic set of (around 6,000)
 characters for use in Simplified Chinese writing; this excludes many of
 the characters in the Taiwanese industry standard for Traditional Chinese
 called Big5 (around 13,000 characters in the basic set). However, Unicode
 is a superset of both (with the duplication removed).
 .
 This tool is used for converting a UTF-8 string which contains both
 Simplified and Traditional Chinese characters directly into a single
 Chinese character set.