EBK CONCEPTS OF PROGRAMMING LANGUAGES
EBK CONCEPTS OF PROGRAMMING LANGUAGES
12th Edition
ISBN: 9780135102251
Author: Sebesta
Publisher: VST
Expert Solution & Answer
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Chapter 4, Problem 26RQ

Explanation of Solution

Purpose of the GOTO table of an LR parser:

LR parser is a table driven parser and the table has two components- ACTION table and GOTO table.

  • As the name suggests the entries in this table decide to which state the parser should go next.
  • Rows of the GOTO table are labeled with states and columns are labeled with non-terminal symbols in the grammar.
  • The values of GOTO table indicates the state symbol which needed to be pushed into the stack after a reduce action.
  • In a reduce action the symbols on the top of stack which represents a handle is popped out and a new terminal is pushed (LHS of handle) back to the stack...

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