comint-output-filter-functions and multi-line input

[Ihor Radchenko <yantar92@posteo.net>]

Hello,

I am trying to figure out how to programmatically capture output of a
multi-line bash script in comint buffer.

Consider:

[yantar92:/tmp] $ 
> if true
> then
> echo "hello"
> fi
hello

Each line is submitted to shell via comint-send-input and, AFAIK, the
result can be collected using `comint-output-filter-functions'.

I expect the `comint-output-filter-functions' to be called on "hello"
line. However, it does not seem to be the case. Empty "" corresponding
to "> " PS2 prompts upon sending incomplete script lines are also
passed.

Is it possible to distinguish the actual script output, empty lines in
the actual script output, and the incomplete prompts?

-- 
Ihor Radchenko // yantar92,
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