Objectives: Develop the Tokenizer and Parser parts of the Jack Compiler according to the specification and implementation notes in chapter 10. The Jack Compiler should compile the jack classes to the virtual machine defined earlier.

The contract: Write the Jack analyzer program in two stages, as described in chapter 10. Use it to parse all the .jack files mentioned below. For each source .jack file, your analyzer should generate an .xml output file. The generated files should be identical to the supplied .xml compare-files.

Test programs:

Program	Description	Source	Tokens file	Compare File
Array Test	A small program the computes the average of numbers in an array	Main.jack	Main.txt	Main.xml
Square Dance	A small game in which you move a black square on the screen.	Main.jack Square.jack SquareGame.jack	Main.txt Square.txt SquareGame.txt	Main.xml Square.xml SquareGame.xml
Expressionless Square Dance	A small game in which you move a black square on the screen. This version has no nested expressions.	Main.jack Square.jack SquareGame.jack	Main.txt Square.txt SquareGame.txt	Main.xml Square.xml SquareGame.xml

Important note: The tokens list does not appear in a browser, at it is not legal xml. To fix this, the tokens list should be enclosed within the tags "<tokens>" and "</tokens>". For example, the source text "x=5" should yield the output:

<tokens>
    <identifier> x </identifier>
    <symbol> = </symbol>
    <integerConstant> 5 </integerConstant>
</tokens>

Requirements: You should submit an executable called JackAnalyzer that takes path to a jack file or directory, and produce an xml file as the result of the parsing of the jack file. The usage is:

• Single file: JackAnalyzer path/to/file.jack creates an xml file in path/to/file.xml
• Directory: JackAnalyzer path/to/dir parses each of the files in the directory, and creates the corresponding xml files in the directory.