Rexexp on part of a string

[Mike Whitaker]

On 19 Feb 2008, at 06:35, Andrew Black wrote:

> I would like to restrict the part of a string a regexp is allowed  
> to operate on, For example I would like to ignore comments.
> I would like
>
>   $x = " andrew andrew   # andrew " ;
>   $x =~ s/andrew/black/g ;
> to produce " black black   # andrew "


TMTOWDTI :)

you could simply split() on #, s/andrew/black/g and rejoin
or use a lookahead
s/andrew(?=.*\#)/black/g;
--
Mike Whitaker - mike at altrion.org