nl_tokens: Shows error message . Throws unless _continue or config . fatal are true
pl_tokens: function error ( msg , _continue ) { if ( state . error === null ) state . error = '' ; state . error += state . currentCmd + ': ' + msg + '\n' ; if ( <mask> . length > 0 ) log ( state . error ) ; if ( config . fatal ) process . exit ( 1 ) ; if ( ! _continue ) throw '' ; }