#!/usr/bin/env sh

c()
{
	destination="$1"

	if [ -z "${SHELLSTORE}" ]
	then
		return 1
	fi

	store=${SHELLSTORE}/chdir_history

	# Make sure the store exists
	touch "${store}"

	if [ -z "$1" ]
	then
		destination=$(tail -n 1 "${store}")

		if [ "${destination}" != "" ]
		then
			sed '$ d' "${store}" > "${store}.sed"
			mv "${store}.sed" "${store}"
		fi
	else
		dots=$(expr "${destination}" : '^\.\+$')

		if [ "$dots" -gt 2 ]
		then
			destination=""

			while [ "${dots}" -gt 1 ]
			do
				destination="${destination}../"

				dots=$((dots - 1))
			done
		fi
	fi

	owd=$(pwd)

	cd "${destination}" || return 2
	l

	[ ! -z "$1" ] && printf "%s\n" "${owd}" >> "${store}"

	unset destination dots store
}