From: Glenn Jackman <glennj@...>
Date: 2009-07-14T19:35:08+09:00
Subject: Re: a regex that does not contain comma

At 2009-07-14 06:01AM, "Axel Schmalowsky" wrote:
>  I'm confused. Trying the regexp /^[^,]*$/ fails with the code below:
>  
>  #! /opt/csw/bin/ruby
>  
>  string = "Hello, world"
>  #regexp = /\w+(?>\s*(?=,))+/
>  regexp = /^[^,]*$/
>  
>  if string =~ regexp
>      puts "string contains a comma"
>  else
>      puts "string does not contain a comma"
>  end

    case string
    when /,/       then puts "#{string.inspect} contains a comma"
    when /^[^,]*$/ then puts "#{string.inspect} has no comma"
    end

-- 
Glenn Jackman
    Write a wise saying and your name will live forever. -- Anonymous