From: Jeff Cohen <cohen.jeff@...>
Date: 2006-09-14T01:17:31+09:00
Subject: Re: Regular expression question.

L7 wrote:
> In trying to parse a C source file I have the following section of
> code:
> 
>    ...
>    ...
> case line
> when /^.*\/\*.*?\*\/.*$/       # single line comment(s)
>    non_comments = line.split(/\/\*.*?\*\//).to_s
>    process_code(non_comments)
> when /^.*\/\*\*?[^(\*\/)]*$/   # multi-line start
>    comment = true
>    next
> when /^[^(\/\*)]*\*\/.*$/      # multi-line end
>    comment = false
>    ...
>    ...
> 
> I am running into a problem with the multi-line comment sections.
> 

My eyes glaze over with these kinds of expressions, but this might help:

http://www.regularexpressions.info/examplesprogrammer.html

Scroll down the section on "Comments".  They seem to have a simpler 
solution, I think the trick is to be able to use . as matching newlines.

And you can turn on newline matching in Ruby by putting an "m" after the 
expression:

/my_pattern_here/m

Hope this helps...?

Jeff
softiesonrails.com

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