Concepts Of Programming Languages
12th Edition
ISBN: 9780134997186
Author: Sebesta, Robert W.
Publisher: Pearson,
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Expert Solution & Answer
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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Describe the purpose of the ACTION table of an LR parser.
Describe the activities done by the driver of a bottom-up parser.
Outline the steps performed by the driver of a bottom-up parser.
Chapter 4 Solutions
Concepts Of Programming Languages
Ch. 4 - Prob. 1RQCh. 4 - Prob. 2RQCh. 4 - Prob. 3RQCh. 4 - Prob. 4RQCh. 4 - Prob. 5RQCh. 4 - Prob. 6RQCh. 4 - Prob. 7RQCh. 4 - Prob. 8RQCh. 4 - Prob. 9RQCh. 4 - Prob. 10RQ
Ch. 4 - Prob. 11RQCh. 4 - Prob. 12RQCh. 4 - Prob. 13RQCh. 4 - Prob. 14RQCh. 4 - Prob. 15RQCh. 4 - Prob. 16RQCh. 4 - Prob. 17RQCh. 4 - Prob. 18RQCh. 4 - Prob. 19RQCh. 4 - Prob. 20RQCh. 4 - Prob. 21RQCh. 4 - Prob. 22RQCh. 4 - Prob. 23RQCh. 4 - What was Knuths insight in developing the LR...Ch. 4 - Prob. 25RQCh. 4 - Prob. 26RQCh. 4 - Is left recursion a problem for LR parsers?Ch. 4 - Prob. 1PSCh. 4 - Prob. 2PSCh. 4 - Prob. 3PSCh. 4 - Prob. 4PSCh. 4 - Prob. 7PSCh. 4 - Prob. 8PS
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- Describe the steps that the driver of a bottom-up parser takes.arrow_forwardDescribe the activities that are carried out by the driver of a bottom-up parser.arrow_forwardChomsky Normal Form: Most useful grammars can be translated into a nor-mal form making answers to questions about the language more transparent.arrow_forward
- What does the characters L, A, L, R and 1 in the name LALR(1) parser stand for? [In- course. Marks: 1]arrow_forwardQUESTION 1 Write in C++ a descent recursive parser for the following grammer: S-> abSAc| d A-> bAe | farrow_forwardShow parse tree and abstract syntax tree for: a + b * c * d * e - farrow_forward
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