case $THIS_SUB_DEPENDS in
  RUBY) is_depends_enabled ${SPELL} ruby && return 0 ;;
  PYTHON) is_depends_enabled ${SPELL} python && return 0 ;;
  PHP) is_depends_enabled ${SPELL} $(get_spell_provider ${SPELL} PHP) && return 0 ;;
  TCL) is_depends_enabled ${SPELL} tcl && return 0 ;;
  CSHARP) is_depends_enabled ${SPELL} $(get_spell_provider ${SPELL} CSHARP) && return 0 ;;
  *) message "${PROBLEM_COLOR}Unknown sub-dependency: ${THIS_SUB_DEPENDS}${DEFAULT_COLOR}" && return 1 ;;
esac
