"re: pattern matching"

[Terrence Burke]

It looks as if  \  allows NOT for precisely the next character, unless 
the next character is  !   --  in which the next character immediately 
following  !  is linked with  \
And you clearly do not want to check for the  (  character.

Probably the answer is to test the string input (from a terminal via a 
screen or Quiz|QTP prompt, or from a data file) against the two 
patterns  (^|#)(\!@)*  and  (^|#)(\,)*   ----    or maybe, instead of the 
second of these use  (^|#)(\!,)* since my tests show they give the 
same result.

               Regards
                   Terry Burke



> Sorry, but this one gives an error during parsing :*E* Invalid pattern
> <char>.
> 
> "(^|#)(\(,|!@))*"
> 
> Chris
> -----Original Message-----
> From: Johan Koelewijn [mailto:j.koelewijn@thegreenery.com]
> Sent: 13 December 2001 10:23
> To: mx% powerh-l@lists.swau.edu
> Subject: "pattern matching"
> 
> 
> Dear list,
> 
> A question about patterns :
> 
> I use the following pattern (^|#)(\!@)*  which means : On the first
> position a character or digit, for the rest of the item anything but a
> @. I want to disable the use of both the comma (",") and the @
> character,  not only the @.
> 
> How can i do this ?
> 
> Johan Koelewijn
> 
> Greenery International B.V.
> 
> 
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> ------ ---- Date: Thu, 13 Dec 2001  11:17:56 +0100
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Dr T E Burke
Admin Information Systems
University of Dundee
Dundee  DD1 4HN
Phone 01382 344022