Programming Language Pragmatics, Fourth Edition
Programming Language Pragmatics, Fourth Edition
4th Edition
ISBN: 9780124104099
Author: Michael L. Scott
Publisher: Elsevier Science
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Chapter 4, Problem 5E

Explanation of Solution

Extending the Context Free Grammar (CFG) of Exercise 2.18 based on Figure 4.16:

  • The Figure 4.16 represents the natural syntax tree for Lisp expression.
  • Now in this one can extend the CFG of Exercise 2.18 with reference to Lisp expression.
  • The following grammar denotes the CFG grammar based on Lisp expression.

P E $$ P.v := E.vE atom E.v := atom.vE1'E2 E1.v := cons(quote, cons(E2.v, null))E1( E2 Es )E1

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Chapter 4 Solutions

Programming Language Pragmatics, Fourth Edition

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