+while [ -n "$1" ]; do
+ if [ "$1" = "-q" ]; then
+ export MSGLEVEL=2
+ elif [ "$1" = "-v" ]; then
+ export MSGLEVEL=4
+ elif [ "$1" = '--color=no' ]; then
+ export MSGCOLOR='NO'
+ else
+ echo >&2 "WARNING: Unknown parameter »$1« will be ignored"
+ fi
+ shift
+done
+export MSGLEVEL="${MSGLEVEL:-3}"
+
+if [ "$MSGCOLOR" != 'NO' ]; then
+ if ! expr match "$(readlink -f /proc/$$/fd/1)" '/dev/pts/[0-9]\+' > /dev/null; then
+ export MSGCOLOR='NO'
+ fi