EBK CONCEPTS OF PROGRAMMING LANGUAGES
12th Edition
ISBN: 9780135102251
Author: Sebesta
Publisher: VST
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Chapter 4, Problem 3PS
Explanation of Solution
Trace of the recursive descent parser for the string:
STEP-1:
Next token is: 11 Next lexeme is a
Enter
Enter
Enter <factor>
STEP-2:
Next token is: 21 Next lexeme is +
Exit
Exit
STEP-3:
Next token is: 11 Next lexeme is b
Enter
Enter
STEP-4:
Next token is: 23 Next lexeme is x
Exit
STEP-5:
Next token is: 11 Next lexeme is c
Enter
STEP-6:
Next token is -1: Next lexeme is EOF
Exit
Exit
Exit
Extended Backus-Naur Form (EBNF):
BNF is a natural notation for describing syntax described by John Backus and Peter Naur. By extending it, we had EBNF which only enhances the readability and writability of BNF
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The difference between (1) a database management system (DBMS) and (2) a database, is:
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a) An example of the linear hash index is given below. Every time a new overflow
page is added, the bucket pointed by Next is split, and Next is incremented by one.
Show the index state after adding the keys 39, 25, and 29.
hi
ho
Level=0, N=4
000
00
0*8*
001
01
17*33*
010
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Chapter 4 Solutions
EBK 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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