RosettaCodeData/Task/Terminal-control-Unicode-output/FunL/terminal-control-unicode-output.funl

if map( v -> System.getenv(v), ["LC_ALL", "LC_CTYPE", "LANG"]).filter( (!= null) ).exists( ('UTF' in) )
  println( '\u25b3' )
else
  println( 'Unicode not supported' )