Issue #7845 has been updated by ko1 (Koichi Sasada).

Subject changed from Strip doesn't handle unicode space characters in ruby 1.9.2 & 1.9.3 (does in 1.9.1) to Strip doesn't handle unicode space characters in ruby 1.9.2 & 1.9.3 (does in 1.9.1)
Category set to M17N
Assignee set to naruse (Yui NARUSE)


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Bug #7845: Strip doesn't handle unicode space characters in ruby 1.9.2 & 1.9.3 (does in 1.9.1)
https://bugs.ruby-lang.org/issues/7845#change-36371

Author: timothyg56 (Timothy Garnett)
Status: Open
Priority: Normal
Assignee: naruse (Yui NARUSE)
Category: M17N
Target version: 
ruby -v: ruby 1.9.3p286 (2012-10-12 revision 37165) [x86_64-linux]


Strip and associated methods in ruby 1.9.2 and 1.9.3 do not remove leading/trailing unicode space characters (such as non-breaking space \u00A0 and ideographic space \u3000) unlike ruby 1.9.1.  I'd expect the 1.9.1 behavior.  Looking at the underlying native lstrip! and rstrip! methods it looks like this is because 1.9.1 uses rb_enc_isspace() whereas 1.9.2+ uses rb_isspace().

1.9.1p378 :001 > "\u3000\u00a0".strip
 => "" 

1.9.2p320 :001 > "\u3000\u00a0".strip
 => "?????"

1.9.3p286 :001 > "\u3000\u00a0".strip
 => "?????"


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