Question: In this assignment, you are only required to write a recursive descent recognizer pseudocode. The following is a set of requirements for this recognizer (parser):

In this assignment, you are only required to write a recursive descent recognizer pseudocode. The following is a set of requirements for this recognizer (parser):

- Ask the user for an input stream. - Report "legal" or "errors found" (not both!). - Assume the input stream is the token stream. - Assume the input stream terminates with a $. - Assume there is no white space. - Use a form to collect input and return the output. - Test your recognizer with illegal and legal strings. - Give a brief description of this recognizer for the user on how to use and what method that it based on.

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