Consider the following grammar for a simple programming language: ::= | ::= | | ::= = ; ::= repeat ( ) ::= print ; ::= | ::= | ::= | - | ( ) ::= | ::=a | b | c | d | e | f | g | h | i | j | k | l | m | n | o | p | r | st | u | v | w | x | y | z ::= | ::= 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 ::= + | ::= * ● Using Finite State Machine Designer , create a DFA that will recognize all tokens in this grammar. • Do the following steps: ● identify tokens in the language over this grammar o write regular expressions for each of the tokens o transition each regular expression to NFA o start with primitive automata and use the rules from the lecture to create the complete DFA. O

Consider the following grammar for a simple programming language: ::= | ::= | | ::= = ; ::= repeat ( ) ::= print ; ::= | ::= | ::= | - | ( ) ::= | ::=a | b | c | d | e | f | g | h | i | j | k | l | m | n | o | p | r | st | u | v | w | x | y | z ::= | ::= 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 ::= + | ::= * ● Using Finite State Machine Designer , create a DFA that will recognize all tokens in this grammar. • Do the following steps: ● identify tokens in the language over this grammar o write regular expressions for each of the tokens o transition each regular expression to NFA o start with primitive automata and use the rules from the lecture to create the complete DFA. O

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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Question

• Consider the following grammar for a simple programming language:
<program> ::= <statement> | <program> <stmt>
<stmt> ::= <assignStmt> | <repeatStmt> | <printStmt>
<assignStmt> ::= <id> = <expr> ;
<repeatStmt> ::= repeat (<expr> ) <stmt>
<printStmt> ::= print <expr> ;
<expr> ::= <term> | <expr> <add0p> <term>
<term> ::= <factor> | <term> <multOp> <factor>
<factor> ::= <id> | <number> | <factor> | ( <expr> )
<id> :: <letter> | <id> <letter>
<letter> ::= a | b | c | d | e | f | g | h | i | j
| k | l | m | n | o | p | r | s | t
| u | v | w | x | y | z
<number> ::= <digit>
| <number> <digit>
<digit> ::= 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9
<addOp>:= + I
<multOp> ::= * | / | %
Using Finite State Machine Designer, create a DFA that will recognize all tokens in this
grammar.
• Do the following steps:
identify tokens in the language over this grammar
o write regular expressions for each of the tokens
o transition each regular expression to NFA
o start with primitive automata and use the rules from the lecture to create the complete
DFA.
O

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