Issue #1889 has been updated by Run Paint Run Run. It appears that http://www.geocities.jp/kosako3/oniguruma/doc/RE.txt did not accurately reflect the behaviour on Onigurma before this patch. For example, [[:word:]] used to match No and Nl characters; but now it doesn't. [[:print:]], [[:graph:]], and [[:cntrl:]] used to match private-use and format characters; now they don't. It's an easy fix, either way, but it would be nice to have the specs agree with reality. ---------------------------------------- http://redmine.ruby-lang.org/issues/show/1889 ---------------------------------------- http://redmine.ruby-lang.org