Re: [opennms-devel] New feature added to trunk: "functions" on generic index resource labels

On Fri, 9 May 2008 10:31:16 -0400, "Jeff Gehlbach" <[email protected]>
said:
> DJ, this is awesome, thanks!

You're welcome, and thank you. :-)

> My only input is on the first feature -- for indexes where one or more  
> components are variable length, it would be nice to specify an offset  
> against the end of the index rather than against its beginning.   
> Typically that's done by specifying a negative offset.  Perl's  
> substr() is a near-example, except that it takes an offset and a  
> length rather than a starting and an ending offset.  I don't have the  
> bandwidth right now to think all the way through the best way to  
> implement this, but thought I'd throw it out there.

Good suggestion!  Committed in revision 9091 to trunk.  Here's what the
example I gave before now looks like when it is configured:

    MAC Address ${hex(subIndex(0, 6))} on interface ${subIndex(6, 1)}



        - djg

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