Learning Rhino - 3

When i look into JSDOC-Toolkit’s source code(run.js) under app folder, the following code confuses me:

readFile: function(/**string*/ path) {   	if (!IO.exists(path)) {   		throw "File doesn't exist there: "+path;   	}   	return readFile(path, IO.encoding);   }  include: function(relativePath) {   	load(SYS.pwd+relativePath);   }

I searched the whole source folder, but couldn't find the definitions of the method ‘readFile’ and ‘load’.  Maybe i missed something, so i turned to the internet for help and found this article.

Finally, i realized that these methods are the Rhino’s shell methods.

load([filename, …])
Load JavaScript source files named by string arguments. If multiple arguments are given, each file is read in and executed in turn.

readFile(path [, characterCoding)
Read given file and convert its bytes to a string using the specified character coding or default character coding if explicit coding argument is not given.