1. Determine the set of tokens which a lexical analyzer would need to recognize. 2. Design and implement a lexical analyzer procedure to read a source program in the above language and print the next token in the input stream. If the token detected is a valueless token, such as a keyword, then it is sufficient to print only the keyword. If it has a value, then both the token type and lexeme should be printed. 3. You will be given several TinyPython programs with which to test your lexical analyzer. These will be located on the class WWW page and will be of the form Test1.py, Test2.py, etc. Run your lexical analyzer on each test program.