[hobbit] PCRE reference with examples

[Rich Smrcina]

Ok, that's great info.  Thanks!

Based on that I'm ending up with an expression like:

HOST=$va[\d\w]*$

To match any host beginning with 'va' that has zero or more alphanumeric 
characters after it.  Is there an easier way to write this?  If not 
that's fine, I just want to make sure I'm using it correctly.

Another poster (Asif Iqbal) posted the MAIL directives with multiple 
recipients.  Does that work like he posted?  Can the multiple email 
recipients be put into a macro?  Consider the following:

$pg-tom=(tomsemail at somewhere.com|tomscell at wireless.com)
HOST=tomshost
	MAIL $pg-tom DURATION=5m COLOR=red

Henrik Stoerner wrote:
> On Wed, Oct 12, 2005 at 10:14:14PM -0500, Rich Smrcina wrote:
> 
>>Is there an online reference for PCRE available, including examples? 
>>I'm having difficulty setting up alerts and I clearly need help with PCRE.
> 
> 
> I did a google on "regular expression tutorial" and came up with this:
> 
> http://www.regular-expressions.info/tutorial.html
> 
> It isn't specific to PCRE, but PCRE implements the regex flavor found
> in Perl, so it should get you going.
> 
> Also, for trying out your regexes there's the "pcretest" utility which
> comes with the PCRE library. It lets you input your regex and try it out
> against selected candidate strings:
> 
> henrik at osiris:~$ pcretest
> PCRE version 4.5 01-December-2003
> 
>   re> /(www|mail|ns).foo.com/
>   data> ns.foo.com
>    0: ns.foo.com
>     1: ns
>     data> print.foo.com
>     No match
> 
> 
> Note that you must put the regex inside slashes when entering it
> into pcretest (it supports multi-line regexes - Hobbit doesn't).
> 
> 
> Henrik
> 
> 
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> 
> 
> 

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Rich Smrcina
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