Proposed modifications to the action command

I don't know if you guys are familiar with tinyfugue, but I'm interested 
in modify our #action command to be inline with the feature set of tf 
/def command. Here's the documentation for tf's /def command:

http://tf.tcp.com/~hawkeye/tf/tf-50b5-help/commands/def.html

Specifically, I want to implement the -n, -a, -F, -c options into the 
action command. So i'd roll the functionality of gag, highlight, 
substitute into #action as well as incorporating some other 
functionalities to make it an all singing all dancing processor for 
incoming text. My plan is to basically hack the actions module to do it. 
My question is should I spawn it into a separate module so as to 
maintain the tintin compatability (pros maintain tintin compatability, 
cons lots 'o redundant code) or just hack actions.py.

Is there a consensus how important strict tintin compatability is?



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