# File lib/xsd/charset.rb, line 172 def Charset.is_ces(str, code = @internal_encoding) case code when 'NONE' is_us_ascii(str) when 'UTF8' is_utf8(str) when 'EUC' is_euc(str) when 'SJIS' is_sjis(str) else raise UnknownCharsetError.new("Unknown charset: #{code}") end end