# testcase: "a:b c:d"
# testcase: "a b:c d:e f"
# testcase: "a b:c:d e"
parse_KUBECONFIG () {
TMPDIR=""
if [[ "$1" =~ ([^:]*):(.*) ]]; then
  while true; do
    rematch=${BASH_REMATCH[1]}
    add_KUBECONFIG_if_exists "$rematch"
    remainder="${BASH_REMATCH[2]}"
    if [[ ! "$remainder" =~ ([^:]*):(.*) ]]; then
      if [[ -n "$remainder" ]]; then
        add_KUBECONFIG_if_exists "$remainder"
        break
      fi