nl_tokens: Read a jBinary type at an offset in the buffer specified by another field .
pl_tokens: function typeAtOffset ( baseType : any , offsetFieldName : <mask> ) : any { return jBinary . Template ( { baseType : baseType , read : function ( context ) { if ( + context [ offsetFieldName ] === 0 ) { return null ; } else { return this . binary . read ( this . baseType , + context [ offsetFieldName ] ) ; } } } ) ; }