From: Marnen Laibow-Koser <marnen@...>
Date: 2009-11-19T23:57:22+09:00
Subject: Re: How to strip ruby comments in a ruby line of code?

Aldric Giacomoni wrote:
> Alexandre Mutel wrote:
>> Short description : My question is : do you know any available method,
>> giving the string of a Ruby line of code, to remove comments from this
>> line of code?
>> 
>> I would like to have something really simple and not being forced to use
>> a full ruby language parser to parse those lines and remove the
>> comments.
>> 
>> Any idea?
>> 
>> Thanks!
> 
> I'm still only learning regular expressions (I'll do another shameless 
> plug for rubular.com here), but you could do this:
> string = string.match(/^.*#).to_s[0...-1]
> 
> Yes, it's a poor solution, but should you have nothing else, it'll do.

It's not possible to do this reliably with regular experessions, because 
of the interaction of # with quoting constructs.  You'll need a parser 
(Treetop can help make one).


Best,
--
Marnen Laibow-Koser
http://www.marnen.org
marnen@marnen.org
-- 
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