From: "Berger, Daniel" <Daniel.Berger@...>
Date: 2005-09-14T04:07:15+09:00
Subject: Re: Surprising Regexp Behavior



> -----Original Message-----
> From: Ara.T.Howard [mailto:Ara.T.Howard@noaa.gov] 
> Sent: Tuesday, September 13, 2005 12:53 PM
> To: ruby-talk ML
> Subject: Re: Surprising Regexp Behavior
> 
> 
> On Wed, 14 Sep 2005, James Edward Gray II wrote:
> 
> > On Sep 13, 2005, at 1:46 PM, Berger, Daniel wrote:
> >
> >> In the former, sub != gsub.  In the latter, you need 
> multi-line mode 
> >> because of the "\n\n":
> >> 
> >> # Without /m
> >> irb(main):026:0> html =~ /<p>(.*?)<\/p>(.*)/
> >> => 0
> >> irb(main):027:0> $1
> >> => "one"
> >> irb(main):028:0> $2
> >> => ""
> >> 
> >> # With /m
> >> irb(main):023:0> html =~ /<p>(.*?)<\/p>(.*)/m
> >> => 0
> >> irb(main):024:0> $1
> >> => "one"
> >> irb(main):025:0> $2
> >> => "\n\n<p>two</p>"
> >
> > Yep, that's what I was forgetting.  Thanks for the lesson.
> 
> thank dave thomas - the pickaxe (html version I) is always 
> open in my browser
> - but far the most oft used page is the one on regex syntax.  
> it just happend to be open ;-)

Also see http://www.zenspider.com/Languages/Ruby/QuickRef.html#10

Thank Ryan Davis. :)

Regards,

Dan