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The following is a description for JH-Lisp, which is the language previously described in homework 2, problem 5, with a slight modification. An operator is

The following is a description for JH-Lisp, which is the language previously described

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in homework 2, problem 5, with a slight modification. An operator is one of the characters + - +/ A number is any sequence of one or more of the digits 0-9 (example: 42) A list expression is defined as an open parenthesis ", followed by an operator, followed by a space, followed by exactly two expressions (separated by a space) and terminated by a close parenthesis")". An expression is defined as either a number or a list expression. A valid string in JH-Lisp is a list expression. An example string in the language is as follows: (+ (- 25 4) (* (/ 40 10) 3)) Give a context-free grammar for JH-Lisp. in homework 2, problem 5, with a slight modification. An operator is one of the characters + - +/ A number is any sequence of one or more of the digits 0-9 (example: 42) A list expression is defined as an open parenthesis ", followed by an operator, followed by a space, followed by exactly two expressions (separated by a space) and terminated by a close parenthesis")". An expression is defined as either a number or a list expression. A valid string in JH-Lisp is a list expression. An example string in the language is as follows: (+ (- 25 4) (* (/ 40 10) 3)) Give a context-free grammar for JH-Lisp

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