From: Tanaka Akira <akr@...>
Date: 2010-01-24T14:36:46+09:00
Subject: [ruby-core:27754] Re: [Bug #2636] Incorrect UTF-16 string length

2010/1/24 Vincent Isambart <redmine@ruby-lang.org>:
> Bug #2636: Incorrect UTF-16 string length
> http://redmine.ruby-lang.org/issues/show/2636

> str = "\xDC\x0B\xD8\x40".force_encoding(Encoding::UTF_16BE)
> str.length #=> 3
>
> This string is made by inverting 2 words of a UTF-16 character not in the BMP.
> The length should be 2 because it's made of two (unpaired) surrogates and not 3.

Fixed.

% ./ruby -ve '
s = "\xDC\x0B\xD8\x40".force_encoding(Encoding::UTF_16BE)
p s
p s.length'
ruby 1.9.2dev (2010-01-24 trunk 26392) [i686-linux]
"\xDC\x0B\xD8\x40"
2
-- 
Tanaka Akira