time-stamp-string-preprocess

time-stamp-string-preprocess is a compiled Lisp function in `time-stamp.el'.

(time-stamp-string-preprocess FORMAT &optional TIME)

Use a FORMAT to format date, time, file, and user information.
Optional second argument TIME is only for testing.
Implements non-time extensions to `format-time-string'
and all `time-stamp-format' compatibility.