From: iMelody Ooo <imelody@...>
Date: 2010-09-18T23:23:33+09:00
Subject: Ruby regexpresion, error? :-(

I want to match last chars of the line,

def show_regexp(a,re)
  if a =~ re
    "#{$`}<<#{$&}>>#{$'}"
  else
    "no match"
  end
end

puts show_regexp("abc as;",/^a/)
puts show_regexp("abc as;",/as$/)
puts show_regexp("abc as;",/\zas/)
puts show_regexp("abc as;",/\Zas/)
puts show_regexp("abc as;",/(.*)as$/)
puts show_regexp("abc as;",/(.*)\zas/)
puts show_regexp("abc as;",/(.*)\Zas/)

Result:
<<a>>bc as;
no match
no match
no match
no match
no match
no match
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