coloring STDERR to terminal

[Atom 'Smasher' <atom@xxxxxxxxxxxxxx>]

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i'm not sure if this is possible without patching some sources, but here's 
what i want to do... every time STDERR is directed to a terminal, i want 
to filter it through _something_like_ this:
	awk '{print "^[[91m"$0"^[[0m"}'

i want my STDERR to be a different color than my STDOUT (when STDERR is 
being directed to my terminal).

is there a way to do that in my dot-zshrc?

it would be neat if i could do some tricks with exec and shuffle STDERR 
through a filter like that... i'm not sure if it would be better to invoke 
`awk` once per shell, or every time STDERR is directed to a terminal... 
both ways have drawbacks. i'm not sure that's it's even possible to do it 
that way... or, if done that way, if it's possible to differentiate 
between output going to a terminal or not.

ideally, i think this would require a new environment variable... maybe 
something like STDERR_COLOR, and can probably just take an integer as a 
value and fill in the control sequences around it... among other 
advantages, there'd be no dependence on an external application. also, 
that's probably the only way to accurately deal with situations when 
STDERR isn't followed by a newline before STDOUT comes along.

if i was any good at coding in C i'd write a patch... but C is still on my 
list of things to master.

thanks...

        ...atom

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