nl_tokens: Check if a path exists .
pl_tokens: function pathExists ( path , options ) { options = options || { returnFile : false } ; // Defaults to F_OK return nodeCall ( <mask> . access , path ) . then ( function ( ) { return options . returnFile ? path : true ; } ) . catch ( function ( ) { if ( fs . existsSync ( path ) ) { return options . returnFile ? path : true ; } return false ; } ) ; }