Issue #6995 has been reported by blueowl (blue owl).

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Bug #6995: Code converter not found (UTF-8 to EUC-TW)
https://bugs.ruby-lang.org/issues/6995

Author: blueowl (blue owl)
Status: Open
Priority: Normal
Assignee: 
Category: M17N
Target version: 
ruby -v: "ruby 1.9.3p0 (2011-10-30 revision 33570) [i686-linux]" and "ruby 2.0.0dev (2012-09-07 trunk 36920) [i686-linux]"


Hello, recently I was doing some conversion from Unicode into Chinese encodings, and I came across what may be a bug in Ruby. Attempting to transcode a traditional Chinese character from UTF-8 to EUC-TW results in a "code converter not found" error. This character exists in Unicode (U+8B6F), and if it were missing in EUC-TW, then I would expect "Encoding::UndefinedConversionError" rather than "Encoding::ConverterNotFoundError". Relevant code and Ruby versions are shown below for reproducing this issue.

$ ruby -v -e '"шн?".encode("EUC-TW")'
ruby 1.9.3p0 (2011-10-30 revision 33570) [i686-linux]
/tmp/test.rb:3:in `encode': code converter not found (UTF-8 to EUC-TW) (Encoding::ConverterNotFoundError)
	from /tmp/test.rb:3:in `<main>'

$ ~/ruby_vm/nightly/bin/ruby -v -e '"шн?".encode("EUC-TW")'
ruby 2.0.0dev (2012-09-07 trunk 36920) [i686-linux]
/tmp/test.rb:3:in `encode': code converter not found (UTF-8 to EUC-TW) (Encoding::ConverterNotFoundError)
	from /tmp/test.rb:3:in `<main>'


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