nl_tokens: The main method which parses input arguments creates a Shell providing evaluation functionality and the Session object to handle the kernel protocol .
pl_tokens: function main ( ) { var parser = nomnom ( ) ; parser . script ( 'ijs' ) . nocolors ( ) . printer ( function ( s , code ) { console . log ( s ) ; if ( code ) { <mask> . exit ( code ) ; } } ) . option ( 'version' , { abbr : 'v' , flag : true , help : 'print version and exit' , callback : function ( ) { console . log ( '0.1.0' ) ; process . exit ( 0 ) ; } } ) . option ( 'userPath' , { abbr : 'u' , full : 'userPath' , metavar : 'path' , type : 'string' , required : true , help : 'path that will contain installed node modules' , callback : function ( userPath ) { if ( ! fs . existsSync ( userPath ) || ! fs . statSync ( userPath ) . isDirectory ( ) ) { return 'expected an existing directory for the userPath option' ; } return null ; } } ) . option ( 'connectionFile' , { position : 0 , required : true , help : 'path to file containing kernel connection information' } ) ; var options = parser . parse ( process . argv . slice ( 2 ) ) ; if ( options ) { var shellConfig = { userPath : options . userPath } ; var connectionConfig = JSON . parse ( fs . readFileSync ( options . connectionFile , { encoding : 'utf8' } ) ) ; Shell . create ( shellConfig , function ( shell ) { Session . run ( shell , connectionConfig ) ; } ) ; } }