[Freeswitch-users] Regular expressions

[Sandeep Ammaladinna]

Hi,
 
  Can anybody help me out with a regular expression (in the context of
writing a dial plan) to extract the host part of a SIP URI.
 
 Suppose I have a sip uri like "sip:alice at example.com" or
alice at 10.0.16.20 what is the procedure to extract the host part?
  I know the procedure to extract the user part, ie, "$1@". But what is
the procedure to extract the host part????????
 
 
Please help me, I am stuck.
 
Thanks and Regards,
-Sandeep A
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