Re: Getting xfilter AND delivery to working

On Thu, 4 Feb 2016, Philip Rhoades wrote:

> if( /^[TC][[co]:.*tst/ )
> {
>     xfilter "/home/phil/bin/bash_internal_variables.sh > /home/phil/t"
>     to $DEFAULT/.tst/
> }

Could someone explain the syntax of the very first line above, 
to wit:

if( /^[TC][[co]:.*tst/ )

At first glance I thought I was looking at unbalanced brackets:

[TC][[co]

...but from the discussion I seem to be alone in that opinion.

What is the purpose of this expression? I'm thinking it is 
looking to match some combination, with varying cases, of To and 
Cc.

Help. please.

:-)

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