comint-redirect-preoutput-filter is a compiled Lisp function in `comint.el'.

(comint-redirect-preoutput-filter INPUT-STRING)

Comint filter function which redirects Comint output to a buffer or buffers.
The variable `comint-redirect-output-buffer' says which buffer(s) to
place output in.

INPUT-STRING is the input from the Comint process.

This function does not need to be invoked by the end user.