Re: Re: A matter of a regular Expression

Aly, you are not correct about #1, and Naveen is right.

Just look at it from the ZERO characters point of view:

^100_[0-9]*$ where * would mean zero of [0-9] characters is then simplified
to: ^100_$, which does not match "AS100 ONLY", or ^100$. That whitespace
makes all the problems.

When in doubt, test it out.

On Mon, Apr 13, 2009 at 10:19 AM, <aly.groupstudy_at_gmail.com> wrote:

> Sorry for the typo mistake ^100_[1-9]*$ should of course be ^100_[0-9]*$
>
> Actually Cyrus you are correct
>
> 1) Do not match AS100 Only routes.
> ^100_[0-9]*$ will match routes originated from 100
> note the * matches "ZERO" or more occurance
>
>
> 2) Without a "0" in [1-9], it won't match AS numbers like 300, 500, 405
> etc.
> sorry my mistake should be ^100_[0-9]*$ but we all get the idea ( clumsy
> me)
>
>
> 3) The * would match everything. AS100's customer's customers and their
> customers etc.
> No I do not think it would as the range [0-9] does not include the space
> char
> or the _ operator
>
> I still thinks they would work the same with mine only shorter and maybe
> simpler
>
>
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