From: Rob Biedenharn <Rob@...>
Date: 2007-05-24T06:23:01+09:00
Subject: Re: Odd Regexp Issue

On May 23, 2007, at 4:32 PM, Luis Parravicini wrote:
> On 5/23/07, Kyle Heck <dbcoder@gmail.com> wrote:
>> I should be able to do a simple gsub!(/<!--.*-->/,"") right?   
>> Well, I do
>> that and unfortunately it doesn't remove some scripts.  Take  
>> google for
>> instance.  It removes the first script, but not the second.  I'm  
>> really
>> confused.  Since google has two scripts, <!-- happens twice, so do  
>> -->
>> so it's not like the full regexp should ever fail to be triggered.
>
>  gsub(/<!--.*?-->/m,"")
>
>  If there are new lines inside the string you need to use the m
> modifier to make the dot (.) include new lines as well.
>  And the ? is to make the match non-greedy. Without it it would match
> the start of the first script and the end of the last script.
>
>
> -- 
> Luis Parravicini
> http://ktulu.com.ar/blog/

Of course, you do realize that you're saying "scripts" but you're  
removing "comments" with this regexp.

I can have:
     <script type="text/javascript">
       //<![CDATA[
       <%= yield :page_scripts %>
       //]]>
     </script>

in a page with not a <!-- or --> in sight!

-Rob

Rob Biedenharn		http://agileconsultingllc.com
Rob@AgileConsultingLLC.com