From: Agnot Tok <agnot_tok@...>
Date: 2001-04-14T20:52:03+09:00
Subject: [ruby-talk:13658] Regexp problem

Hi and happy easter to everyone,

Its time to do some Ruby programming. However, I stumbled on the following
problem. Can anyone explain the behavior:

def cr(b,d,e)
/^(#{b}(#{d})?#{e})|((#{b})?#{d}(#{e})?)/
end

# Why does
puts ("be" =~ cr("b", "d", "e"))

# match when
puts ("1e1" =~ cr('(\d(_*\d+)*)', '(\.\d(_*\d+)*)', '((e|E)-?(_*\d+)+)'))

# doesn't?

Regards,

Agnot


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