Re: [Nms-cgi-devel] Re: [Nms-cgi-commits] CVS Commit %s

[Jonathan S. <gel...@ge...>]

On Mon, 26 Nov 2001, Nick Cleaton wrote:

> On Mon, Nov 26, 2001 at 05:40:05AM -0800, Nick Cleaton wrote:
> >
> > Modified Files:
> > 	guestbook.pl
> > Log Message:
> > Added \Q \E around variables in regexps where metacharacters in the
> > variables shouldn't be interpreted by the regex engine.
>
> I propose this convention for interpolating variables into regular
> expressions:
>
>   metacharacters interpreted:      (?:$foo) or ($foo)
>

Was the first available in 5.00404 ? If so that should be the one of
choice :)

>   metacharacters not interpreted:  \Q$foo\E
>

Yep, but if the the contents of $foo are themselves constructing a regex
from some other construct then it should be taken back a step earlier:

my $pattern = join '|', map { quotemeta($_) } keys(%unescape_html_map);

As in recent wwwboard.pl ....


/J\
-- 
Jonathan Stowe                      |
<http://www.gellyfish.com>          |      This space for rent
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