while [ "${newtags#${BR}}" != "${newtags}" ]; do newtags="${newtags#${BR}}"; done
while [ "${newtags%${BR}}" != "${newtags}" ]; do newtags="${newtags%${BR}}"; done
while [ "${newtags#${BR}}" != "${newtags}" ]; do newtags="${newtags#${BR}}"; done
while [ "${newtags%${BR}}" != "${newtags}" ]; do newtags="${newtags%${BR}}"; done