From: Stephan Wehner <stephanwehner@...>
Date: 2009-05-25T15:42:04+09:00
Subject: Re: OptionParser: unexpected behaviour with -help

Brian Candler wrote:
> Look at the source - /usr/lib/ruby/1.8/optparse.rb or somewhere similar 
> on your system.
> 
>                 # if no short options match, try completion with long
>                 # options.
>                 sw, = complete(:long, opt)
> 
> So it looks that if you stub out 'complete' you can get the behaviour 
> you require: that is, I think you want -h to be treated as an error 
> instead of as a shortcut for --headers, and ditto -e as an error instead 
> of a shortcut for --ex
> 
> Alternatively, if only '-help' is a problem, you could just handle this 
> special case:
> 
> ARGV.each { |a| a.replace('--help') if a == '-help' }

Well, thanks a lot for that. I feel the guessing game should be avoided 
-- there's too much potential for confusion.

Stephan

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