CONCEPTS OF PROGRAMMING LANG.-TEXT
11th Edition
ISBN: 2810017678981
Author: Sebesta
Publisher: PEARSON
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Expert Solution & Answer
Chapter 4, Problem 8PS
Explanation of Solution
Complete parse for the string “(id+id)*id” using the parse table:
The complete trace of the shift reduce parser including stack contents, input string, and action is shown below.
| Stack | Input | Action |
| 0 | (id+id)*id$ | Shift 4 |
| 0(4 | id+id)*id$ | Shift 5 |
| 0(4id5 | +id)*id$ | Reduce 6 (GOTO[4, F]) |
| 0(4F3 | +id)*id$ | Reduce 4 (GOTO[4, T]) |
| 0(4T2 | +id)*id$ | Reduce 2 (GOTO[4, E]) |
| 0(4E8 | +id)*id$ | Shift 6 |
| 0(4E8+6 | id)*id$ | Shift 5 |
| 0(4E8+6id5 |
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Students have asked these similar questions
Draw a parse tree for expressions,
(i) A:=B+C + A and
(ii) A: =B* (A + C).
Show a complete parse, including the parse stack contents, input string, and action for the string (id+id) *(id*id),
Bottom-up Parsing : Show a complete parse, including the parse stack contents, input string, and actions for the string id + (id * id + id) using the grammar and parse table
Chapter 4 Solutions
CONCEPTS OF PROGRAMMING LANG.-TEXT
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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- Draw the parse tree for expression a = b / (a+c).arrow_forwardDesign a context free grammar by your own. Construct a LL(1) parsing table using First and Follow and show stack movement for any one input string.arrow_forwardBoth interpretation and code generation can be performed by traversal of a syntax tree. Compare these two kinds of traversals. In what ways are they similar/different?arrow_forward
- Create a BNF grammar using a parsimonious Python module. This should consist of a first name, space, and last name. The solution needs to be written in the Python programming language. After running the code it should draw a parse tree. Input examples: John Doe Bob Simonarrow_forwardSubject: Compiler Design / Computer Science Note: Answer in your own words. copy from internet will not help me. Question: Consider the following grammar and input string,S → S+SS → S-SS → (S)S → a Input string: a1*(a2+a3)Find out the parsing table using shift reduce parsing.arrow_forwardI need help developing a parser that can take a sentence generated by the context-free grammar and parse it into a parse tree, which can be used to represent the structure of the sentence. Like the example givenarrow_forward
- 3. Given the following BNF grammar: -> d c | cd -> a la -> b | b Use the top-down recursive descent method which we discussed in the class to implement a parser (i.e. tdrd.parser.py) in python3 for the above BNF grammar. The input data file name is given from the command line. You may assume that there is a space character between two terminals (e.g. a a adc b ) in the data file.arrow_forwardDesign a PDA for the following language: L = {0*1³ | 0 < i < j < 2i}. Hint: remember we showed PDAS both for {a"b"} and {a"b?"}. However, to allow the string to have that range of number of b's, you need to use the nondeterminism: for each 0 push a symbol in the stack and allow the PDA to non-deterministically choose to match 1 or 2 b's to each a.arrow_forward1.Given that, L = { start of all strings over a, b }. Construct CFG from this language.2.Determine the FIRST and FOLLOW sets from the production rules you used to construct the parse table. S --> A $ A --> - A B | id C B --> - B | " " C --> " " | idarrow_forward
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