[cisco-voip] Destination Pattern Question

[Lelio Fulgenzi]

It was very counter intuitive that's for sure.

Can you send a link where you got that Jonathan?

Here's one that talk's about a specific example, but goes against the [^abc] example.

http://www.cisco.com/univercd/cc/td/doc/product/software/ios123/123cgcr/vvfax_c/int_c/dpeer_c/dp_confg.htm


Specifically, 
  A destination pattern including [^752] would allow matching only for digit strings beginning with 5 or 2, but would not match any digit strings beginning with 7. This destination pattern entry essentially behaves the same way as if you had simply included [52] in the destination pattern. 


  ----- Original Message ----- 
  From: Jonathan Charles 
  To: CarlosOrtiz at bayviewfinancial.com 
  Cc: cisco-voip 
  Sent: Monday, February 05, 2007 5:34 PM
  Subject: Re: [cisco-voip] Destination Pattern Question


  The first two regular expression characters I learned were ^ and $ (beginning and ending of a string)... (BGP).

  To be honest, I can't see how someone could say that the ^ means NOT...

  However, I just found this: 

  [^ ] Matches a single character that is not contained within the brackets. For example, [^abc] matches any character other than "a", "b", or "c". [^a-z] matches any single character that is not a lowercase letter. 

  So, we are wrong, they are right... we suck.




  Jonathan


  On 2/5/07, CarlosOrtiz at bayviewfinancial.com <CarlosOrtiz at bayviewfinancial.com> wrote:
    I agree with your assessment.  Just trying to confirm to convince others.



----------------------------------------------------------------------------

      ----- Original Message -----
      From: "Jonathan Charles" [jonvoip at gmail.com]
      Sent: 02/05/2007 04:25 PM CST
      To: Carlos Ortiz
      Cc: cisco-voip at puck.nether.net
      Subject: Re: [cisco-voip] Destination Pattern Question 



    The ^ matches the beginning of a string.

    The [ ] match a range.

    So, my thinking would be that the [^9] should match anything that begins with a 9

    However, so would:

    9...

    To match the not-9 do this: 

    [1-8]...



    Jonathan


    On 2/5/07, CarlosOrtiz at bayviewfinancial.com < CarlosOrtiz at bayviewfinancial.com> wrote:

      Can someone confirm what this statement does?    It was added with the idea that everthing will match except anything beginning with 9.  >From what I read it looks like it will match all ext's beginning with 9. 

      destination-pattern [^9]... 

      Carlos
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