[Freeswitch-users] Channel variables for npdi and rn on LRN dipped calls.

[Michael Collins]

In this case the ? modifies the *, so there's .* (greedy) and .*? (not
greedy)

You want your .* to match as little as possible instead of as much as
possible. If you use .* instead of .*? then your $2 would contain both the
ndpi info but also it would have ";rn=18005551212" b/c the .* would grab
all that stuff. The .*? would only grab up to the ";rn".

Just adding that info for posterity's sake. :)

-MC

On Mon, Jan 7, 2013 at 5:05 PM, Ken Rice <krice at freeswitch.org> wrote:

>  Ooops yeah I mean .*... The ? Is pretty useless there... Since there
> should always be something if they send ndpi=
>
>
> On 1/7/13 7:00 PM, "Michael Collins" <msc at freeswitch.org> wrote:
>
>
> Just a quick FYI... be careful when you use .* because it will try to
> match EVERYTHING. Also, Ken accidentally typed (*.) which I'm sure wasn't
> what he was aiming for. ;)
>
> Maybe this would be more effective:
> ^(?:+1|1)?([2-9]\d{2}[2-9]\d{6});ndpi=(.*?);rn=([2-9]\d{2}[2-9]\d{6})$
>
> -MC
>
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-- 
Michael S Collins
Twitter: @mercutioviz
http://www.FreeSWITCH.org
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