Re: Regexp with groups and subgroups

Divide and conquer just break up your input into separate interfaces. 

something like 

String output = getShowOutput();
int index = output.indexOf( "interface:" );
int secondIndex = output.indexOf( "interface:", index );
String firstInterface = output.substring( index, secondIndex );

then do the match on firstInterface and get the values and repeat the process 
to get the next interface.

kind regards

Michael
On Tuesday, 16 September, 2003 00:21, Sarika Inamdar  wrote:
> Hi All,
>
> We have to write a regular expression to extract some values for mutiple
> interfaces.
>
> For example : We have a command :
>
> "show mpls l2 vc details "
>
> The output of this command gives details of the mpls for mutiple
> interfaces viz :
>
> Local interface: VFI erms1 up
>   Destination address: 10.8.99.3, VC ID: 13, VC status: up
>     Tunnel label: 29, next hop point2point
>     Output interface: PO9/2, imposed label stack {29 40}
>   Create time: 1w2d, last status change time: 2d09h
>   Signaling protocol: LDP, peer 10.8.99.3:0 up
>     MPLS VC labels: local 40, remote 40
>     Group ID: local 0, remote 0
>     MTU: local 9216, remote 9216
>     Remote interface description:
>   Sequencing: receive disabled, send disabled
>   VC statistics:
>     packet totals: receive 143929, send 488
>     byte totals:   receive 10266253, send 42323
>     packet drops:  receive 0, send 0
>
> Local interface: VFI ERMS-VPN-2000 up
>   Destination address: 10.8.99.3, VC ID: 2000, VC status: up
>     Tunnel label: 29, next hop point2point
>     Output interface: PO9/2, imposed label stack {29 42}
>   Create time: 2d03h, last status change time: 2d03h
>   Signaling protocol: LDP, peer 10.8.99.3:0 up
>     MPLS VC labels: local 62, remote 42
>     Group ID: local 0, remote 0
>     MTU: local 1500, remote 1500
>     Remote interface description:
>   Sequencing: receive disabled, send disabled
>   VC statistics:
>     packet totals: receive 305, send 306
>     byte totals:   receive 25925, send 27234
>     packet drops:  receive 0, send 0
>
> We need to extract the highlighted values like VCD id and the VC
> statistics like ( packet totals, byte totals, packet drops)
>
> We have written a reg exp which will extract the above value. But this
> works only for one interface.
> The reg-exp is :
> VC ID: (\d+),[\w\W\s]+packet totals: receive (\d+), send (\d+)\s+byte
> totals:\s+receive (\d+), send (\d+)\s+packet drops:\s+ receive (\d+),
> send (\d+)
> Can this be enhanced into groups and subgroups to get values for all the
> interfaces listed in the above output ?
> Any help on this is greatly appreciated.
> Thanks in Advance,
> Sarika
>
>
>
>
>
>
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-- 
Michael McCallum
Software Engineer
SnapHire Inc.
http://www.SnapHire.com/