Pearson eText for Concepts of Programming Languages -- Instant Access (Pearson+)
12th Edition
ISBN: 9780135102268
Author: Robert Sebesta
Publisher: PEARSON+
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Expert Solution & Answer
Chapter 3, Problem 10PS
Explanation of Solution
Consider the following grammar:
<S> -> <A><B><C>
<A> -> a <A> | a
<B> -> b <B> | b
<C> -> c <C> | c
In the given case, <A><B><C> generates all sentences which consists one or more than one a's followed by one or more than one b's followed by one or more than one c's.
<A> generates one or more than one consecutive a's.
<B> generates one or more than one consecutive b's.
<C> generates one or more than one consecutive c's...
Expert Solution & Answer
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Students have asked these similar questions
1a. Fill out the following blanks to make it a context-free grammar for the given language over the alphabet {a, b}:
1b. Fill out the following blanks to make it a context-free grammar for the given language:
Backus Naur Form (BNF) is a standard notation for expressing syntax as a set of grammar rules. Figure 1 below
shows a grammar for assignment with arithmetic operations, e.g. y = (2*x + 5)*x - 7;
assignment => ID = expression ;
expression => expression + term
I expression - term
I term
term
term * factor
| term / factor
| factor
( expression )
| ID
| NUMBER
factor =>
Figure 1. Grammar
(a) Identify and list all the non-terminal symbols in the grammar
(b) Identify and list all the terminal symbols in the grammar
Context free grammar
Chapter 3 Solutions
Pearson eText for Concepts of Programming Languages -- Instant Access (Pearson+)
Ch. 3 - Prob. 1RQCh. 3 - Prob. 2RQCh. 3 - Prob. 3RQCh. 3 - Prob. 4RQCh. 3 - Prob. 5RQCh. 3 - Prob. 6RQCh. 3 - Prob. 7RQCh. 3 - Prob. 8RQCh. 3 - Prob. 9RQCh. 3 - What is the difference between a synthesized and...
Ch. 3 - Prob. 11RQCh. 3 - Prob. 12RQCh. 3 - Prob. 13RQCh. 3 - Prob. 14RQCh. 3 - Prob. 15RQCh. 3 - Prob. 16RQCh. 3 - Prob. 17RQCh. 3 - Prob. 18RQCh. 3 - Prob. 19RQCh. 3 - Prob. 20RQCh. 3 - Prob. 21RQCh. 3 - What does partial correctness mean for a loop...Ch. 3 - Prob. 23RQCh. 3 - Prob. 24RQCh. 3 - Prob. 25RQCh. 3 - Prob. 26RQCh. 3 - Prob. 27RQCh. 3 - Prob. 28RQCh. 3 - Prob. 29RQCh. 3 - The two mathematical models for language...Ch. 3 - Write EBNF descriptions for the following: a. A...Ch. 3 - Prob. 3PSCh. 3 - Prob. 4PSCh. 3 - Prob. 5PSCh. 3 - Prob. 6PSCh. 3 - Prob. 9PSCh. 3 - Prob. 10PSCh. 3 - Prob. 12PSCh. 3 - Prob. 15PSCh. 3 - Prob. 16PSCh. 3 - Prob. 17PSCh. 3 - Prob. 18PSCh. 3 - Compute the weakest precondition for each of the...
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Similar questions
- 1. Find a context free grammar that generates each of the following languages: 1. L= {0™1" |m=n} 2. L= {0™1" | m+ n} 2. Construct a context-free grammar that generates all regular expression over the al- phabet {a, b}arrow_forwardTopic: Concepts of programming Language Perform the pairwise disjointness test for the following grammar rules. (please give a few details)i. S → aSb|bAAii. A → b{aB}|biii. B → aB|bAarrow_forwardIV) Write derivations for four strings of various lengths and describe what is the language generated, L(G) by the following grammar G. V = {S, A, B}, T = {a,b} P=SA, SB, BbB, AaA, A → A, B1, S is the start nonterminal. V) Write derivations for four strings of various lengths and describe what is the language generated, L(G) by the following grammar SaSaa|B, B→ bB|Xarrow_forward
- 6) Please look at the attached image.arrow_forwardConsider the following grammar: → a b > b | b b Which of the following sentences are in the language generated by this grammar? a. babb b. bbbabb c. bbaaaaabc d. aaaaaaarrow_forward2. Give a context-free grammar that generates the following language: k > 2, each x; E {a, b}*, and for X1#x2# ...#x'k; .R some i and j # i, x; = x',arrow_forward
- iii. Syntax translation using posfixarrow_forwardPrinciples of programming languages: Write the BNF grammar for assignment statements written with any of the operators listed in the table below giving their precedence and associativity. The start symbol for the grammar is ASSIGN. Use the tokens ident and numlit wherever an identifier or numerical literal occurs in the appropriate rule. Note: Write your nonterminal symbols in all upper case letters. Don't use < and > in your answer since it causes problems with typing your answer. Precedence Operator Type Associativity 5 ( ) Parenthesis Left to Right 4 ! Unary logical negation Right to Left 3 == is equal to Left to Right 2 && Logical AND Left to Right 1 = %= Assignment Modulus assignment Right to Leftarrow_forwardConsider the following grammar: E--> E+E | E* E | id b) Write an unambiguous grammar for the same language.arrow_forward
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