From: "R. Joseph Newton" <[EMAIL PROTECTED]>
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- Original Message -
From: "Rob Dixon" <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Wednesday, February 25, 2004 1:20 PM
Subject: Re: regular expression that doesn't match any string
> Öznur tastan wrote:
> >
> > Just for fun (really
Öznur tastan wrote:
>
> Just for fun (really no context) i was wondering how to create regular
> expressions that will never match any string.
It's a strange leisure activity, but how about
/[^\Q$string\E]/
which will never match $string.
/R
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Öznur tastan wrote:
>
> Hi all
Hello,
> Just for fun (really no context) i was wondering how to create regular
> expressions that
> will never match any string.
>
> /^[^\w\W]/ is one of them am I right? No string can start with a character
> that is neither alphanumeric nor nonalhanumeric.
>
I believe the '.' character does not have the same special meaning within a character
class, and that's why it isn't matching what you think it does. You should check out
the YAPE::Regex::Explain module. It's great for debugging regular expressions.
-Original Message-
