Matthew Flatt 39d1cf4635 support progress evts in result of `make-limited-input-port' ... and also adjust initial position in various port constructions to use `file-position' instead of `port-next-location' original commit: a9190621439b8bf8ecace2fd9e81217dcaed808d		2011-06-16 09:18:47 -06:00
collects	support progress evts in result of `make-limited-input-port'	2011-06-16 09:18:47 -06:00