RE: Regular Expressions

From: Peter Cresswell (p-cresswell@iname.com)
Date: Tue Sep 12 2006 - 13:07:08 ART


Fabio,

The difference is the bottom one will match multiple as's in an as path
becoase the _ is also allowed to be repeated. The 2nd one will only match
"100 " then a list of digits between 0-9 without any spaces.

E.g.

Expression 1 would match:
100 200 300 111

Expression 2 would match:

100 200300111

Regards,

Peter

-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
Fabio Rodrigues
Sent: 12 September 2006 16:12
To: ccielab@groupstudy.com
Subject: Regular Expressions

Hi All,

does anyone knows to say the difference of the effect (if exists) of these
two regular expressions?

^100(_[ 0-9]+)?$
^100_[0-9]*$

Tks,

Fabio.



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