nl_tokens: An object that provides modification and reading of the current execution context as well as the ability to execute an AST in the context
pl_tokens: function ExecutionContext ( options ) { EventEmitter . call ( this ) ; this . stringVars = { } ; this . numberVars = { } ; this . pointers = { } ; this . gosubs = [ ] ; this . private = { rnd_seed : Math . random ( ) , sprites : [ ] , data : [ ] } ; this . constants = require ( './constants' ) ; this . running = false ; <mask> = options || { } ; this . options = options ; if ( typeof options . delay === 'undefined' ) options . delay = false ; // Copy all functions as constants for ( var k in functions ) { if ( ! functions . hasOwnProperty ( k ) ) continue ; this . constants [ k ] = functions [ k ] ; } // Stop multiple contexts conflicting with constants this . constants = pUtil . shallowClone ( this . constants ) ; }