comint-preoutput-filter-functions trouble

[Aidan Gauland]

Hi,

If I type M-x shell RET, M-x comint-mode RET, M-: (add-hook
'comint-preoutput-filter-functions 'upcase nil t), and hit return in
the *shell* buffer and the next line is all uppercase.

Now if I listen on localhost 60750 with nc, and switch to comint-mode
in the buffer created by (open-network-stream "foo" "*foo*"
"localhost" 60750) (instead of *shell*), evaluate (add-hook
'comint-preoutput-filter-functions 'upcase nil t), and type something
in nc, it does *NOT* show up as uppercase in the Emacs buffer *foo*.

Why do the comint-preoutput-filter-functions seem to have no effect in
a network-stream buffer?

Thanks,
Aidan Gauland

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