#!/usr/bin/env $PLAN9/bin/rc

fn text {
	if(~ $winid [0-9]*)
		9p read acme/$winid/body
	if not if(~ $text9term unix!*)
		dial -e $text9term </dev/null
	if not
		status=''
}

PROMPT='[^ 	]*[%;$#][ 	]+'

fn cmds {
	text | 9grep '^'$PROMPT'[^"]' | sed 's/^/	/'
}

switch($#*) {
case 0
	cmds | tail -1
case *
	cmds | 9grep '^	'$PROMPT^$"* | {echo; cat} |
		pr -t -n | sort -nr | sort -u +1 | sort -n |
		9sed 's/^ *[0-9]+	//' | grep .
}

# the silly {echo; cat} gets around pr printing "empty file" when
# presented with no input.