nl_tokens: Starts the REPL . Options can be :
pl_tokens: function start ( options ) { options = options || { } ; var prompt = options . prompt || '> ' ; var eval = options . eval || run ; var context = new ExecutionContext ( ) ; var manager = new BlockManager ( ) ; var ast = <mask> AbstractSyntaxTree ( [ ] , { } , manager ) ; nextLine ( context , ast , prompt , prompt , - 1 , eval ) ; }