#!/bin/sh

# Using external pipe with st, give a dmenu prompt of recent commands,
# allowing the user to copy the output of one.
# xclip required for this script.
# By Jaywalker and Luke
# Adapted for FreeBSD by Joe
mem=$(sed '{s/^ $//g;s/\x0//g;}')
ps1=$(printf "%s" "$mem" |
	tail -n1 |
	sed -E 's/([%,#,>]).*/\1/')
chosen=$(printf "%s" "$mem" |
	grep -F "$ps1" |
	grep -v "$ps1 $" |
	tac |
	dmenu -i -l 10 |
	sed 's/[^^]/[&]/g; s/\^/\\^/g')
eps1=$(echo "$ps1" |
	sed 's/[^^]/[&]/g; s/\^/\\^/g')
if [ "$1" = "noprompt" ]; then
	printf "%s" "$mem" |
		gawk "/^$chosen$/{p=1;print;next} p&&/$eps1/{p=0};p" |
		sed '{1d;s/ $//;}' |
		head -c -1 |
		xclip -selection clipboard
else
	printf "%s" "$mem" |
		gawk "/^$chosen$/{p=1;print;next} p&&/$eps1/{p=0};p" |
		sed 's/ $//' |
		head -c -1 |
		xclip -selection clipboard
fi