From: Chris Alfeld <chris.alfeld@...>
Date: 2006-04-02T06:14:25+09:00
Subject: Re: Regexp grouping question

compressed = "foo = bar; red  = herring;"
compressed = compressed.gsub(/\s*([=;])\s*/,'\1')

I believe #$1 is evalued *before* gsub is executed and hence fails. 
gsub sets the variable and uses \1, \2, \3 in the replacement string
to correspond.



On 4/1/06, petermichaux@gmail.com <petermichaux@gmail.com> wrote:
> Hi
>
> I'm trying to remove unecessary white space around equals signs and
> after semicolons
>
> compressed = "foo = bar; red  = herring;"
> compressed = compressed.gsub(/\s*([=;])\s*/,"#$1")
> puts compressed
>
> produces
> foobarredherring
>
> but I would like it to produce
> foo=bar;red=herring;
>
> Seems like the #$1 is not working. I also tried #{$1} but that didn't
> work either.
>
> Any ideas?
>
> Thanks,
> Peter
>
>
>