Rails - Feb 2006 - RegEx Question

Hi,
This is more of a Ruby question than Rails. I want to autolink url''s in
a given
string. I''m not great with regular expressions and I wandered if
anybody has an
example. Thanks.

John Nunemaker wrote:
> Hi,
> This is more of a Ruby question than Rails. I want to autolink
url''s in a given
> string. I''m not great with regular expressions and I wandered if
anybody has an
> example. Thanks.
> 
> _______________________________________________
> Rails mailing list
> Rails@lists.rubyonrails.org
> http://lists.rubyonrails.org/mailman/listinfo/rails
irb(main):010:0> string = ''This is a string with a
http://test.link/foo.bar?query=&bar in it.''
=> "This is a string with a http://test.link/foo.bar?query=&bar in
it."

irb(main):011:0> string.gsub(%r{(http://\S+)}, "<a
href=''#{$1}''>#{$1}</a>")
=> "This is a string with a <a
href=''http://test.link/foo.bar?query=&bar''>http://test.link/foo.bar?query=&bar</a>
in it."

HTH
-- 
Alex

If you are using rails you might want to lookinto auto_link in  
ActionView::Helpers::TextHelper


Mikkel Bruun

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or you could just use the auto_link helper.

http://rails.rubyonrails.com/classes/ActionView/Helpers/TextHelper.html#M000426

On 2/10/06, Alex Young <alex@blackkettle.org>
wrote:
>
> John Nunemaker wrote:
> > Hi,
> > This is more of a Ruby question than Rails. I want to autolink
url''s in
> a given
> > string. I''m not great with regular expressions and I wandered
if anybody
> has an
> > example. Thanks.
> >
> > _______________________________________________
> > Rails mailing list
> > Rails@lists.rubyonrails.org
> > http://lists.rubyonrails.org/mailman/listinfo/rails
> irb(main):010:0> string = ''This is a string with a
> http://test.link/foo.bar?query=&bar in it.''
> => "This is a string with a http://test.link/foo.bar?query=&bar
in it."
>
> irb(main):011:0> string.gsub(%r{(http://\S+)}, "<a
> href=''#{$1}''>#{$1}</a>")
> => "This is a string with a <a
href=''http://test.link/foo.bar?query=&bar''>
> http://test.link/foo.bar?query=&bar</a> in it."
>
> HTH
> --
> Alex
> _______________________________________________
> Rails mailing list
> Rails@lists.rubyonrails.org
> http://lists.rubyonrails.org/mailman/listinfo/rails
>
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Wow. auto_link is great. I guess I should have dug a little deeper. That was
really simple. Thanks.