From: GOTO Kentaro <gotoken@...>
Date: 2002-09-24T03:33:08+09:00
Subject: Re: Problems with String#gsub!

At Tue, 24 Sep 2002 02:18:07 +0900,
Vincent Foley wrote:
> 
> I have here a program to help me do crossword puzzles.  Yesturday, I
> added the (c) and (v) symbols to match consonants and vowels
> respectivly.  The problem is that they do not seem to work the way I
> intend them to.  Here's the program:
> 
> [code]
> #!/usr/bin/env ruby
> 
> wordList = open('/home/vince/fr_dict.txt', 'r').read.split('\n')
> repl = {
>     '_'   => '[a-�]',
>     '(v)' => '[a���e���i��o��u���y]', 
>     '(c)' => '[bcdfghjklmnpqrstvwxyz]',
>     '(e)' => '[�e���]'
> }    
> 
> while true
>   print '> '
>   reg = gets.chomp
>   repl.each_key { |token|
>     reg.gsub!(token, repl[token])

Try
      reg.gsub!(Regexp.new(Regexp.escape(token)), repl[token])
or
      reg.gsub!(/#{Regexp.escape(token)}/, repl[token])

W/o escape, you get /(c)/ for "(c)" and it means grouped one letter c.