#!/bin/sh
+for n in "$@"; do case ${n%%=*} in
+ data) _DATA="${n#data=}";;
+ exec) _exec="${n#exec=}";;
+ noerr) exec 2>&-;;
+esac; done
+
[ -z "${_EXEC%/}" ] && _EXEC="$(realpath "${0%/*}")" || _EXEC="${_EXEC%/}"
[ -z "${_DATA%/}" ] && _DATA=. || _DATA="${_DATA%/}"