nl_tokens: Create a new Compiler with the given options .
pl_tokens: function Compiler ( options , state ) { debug ( 'initializing' , __filename ) ; this . options = utils . extend ( { source : 'string' } , options ) ; this . state = state || { } ; this . compilers = { } ; this . <mask> = '' ; this . set ( 'eos' , function ( node ) { return this . emit ( node . val , node ) ; } ) ; this . set ( 'noop' , function ( node ) { return this . emit ( node . val , node ) ; } ) ; this . set ( 'bos' , function ( node ) { return this . emit ( node . val , node ) ; } ) ; use ( this ) ; }