Issue #10149 has been updated by Tomoyuki Chikanaga.

Backport changed from 2.0.0: REQUIRED, 2.1: REQUIRED to 2.0.0: REQUIRED, 2.1: DONE

Backported into `ruby_2_1` branch at r47485.

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Bug #10149: Some characters in EUC-KR does not encode to UTF-8 properly
https://bugs.ruby-lang.org/issues/10149#change-48762

* Author: Eric Seo
* Status: Closed
* Priority: Normal
* Assignee: 
* Category: core
* Target version: 
* ruby -v: ruby 2.1.2p95 (2014-05-08 revision 45877) [x86_64-darwin13.0]
* Backport: 2.0.0: REQUIRED, 2.1: DONE
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This bug is confirmed on 2.1.2p95
There are (at least) two valid euc-kr characters that do not get converted to utf-8 properly

**1. "\xA2\xE6" should convert to U+20AC (Euro Sign)**
Current behavior:

~~~ruby
irb(main):001:0> "\xA2\xE6".encode('UTF-8', 'EUC-KR')
Encoding::UndefinedConversionError: "\xA2\xE6" from EUC-KR to UTF-8
~~~

**2. "\xA2\xE7" should convert to U+00AE (Registered Sign)**
Current behavior:

~~~ruby
irb(main):002:0> "\xA2\xE7".encode('UTF-8', 'EUC-KR')
Encoding::UndefinedConversionError: "\xA2\xE7" from EUC-KR to UTF-8
~~~

I confirmed both characters convert correctly on python:

~~~python
>>> "\xA2\xE7".decode('euc-kr')
u'\xae'
~~~

I am guessing this is because these two characters are missing in this mapping:  http://svn.ruby-lang.org/repos/ruby/trunk/enc/trans/euckr-tbl.rb



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