From: Brian Candler Date: 2009-07-29T16:45:17+09:00 Subject: [ruby-core:24593] [Feature #1831] Suggestion: warn on repeated character in character class Feature #1831: Suggestion: warn on repeated character in character class http://redmine.ruby-lang.org/issues/show/1831 Author: Brian Candler Status: Open, Priority: Low Category: core Suggestion: warn if the same character appears more than once in a character class (or more restrictedly: if the character ':' appears both at the start and end of a character class) This is to give some indication of the problem if you do the following: >> RUBY_DESCRIPTION => "ruby 1.9.2dev (2009-07-18 trunk 24186) [i686-linux]" >> $WARN=true => true >> "uber" =~ /[:lower:]/ => 2 ---------------------------------------- http://redmine.ruby-lang.org