[TxMt] Mirrors in interpolated shell code in snippets

[Benjamin Hawkes-Lewis]

For when a single regular expression is not sufficient for a mirror 
transformation, is there any way to access current mirror values from 
within interpolated shell code in snippets?

(I'm trying to write a transformation that will first convert a human 
phrase to CamelCase /then/ lowercase the first character to generate a 
StudlyCaps version of the phrase.)

--
Benjamin Hawkes-Lewis