Letter/Digit addChar; getChar Letter Start id return lookup (lexeme) addChar; getChar Digit +/- int return Int Lit addChar; getChar return Float Lit addchar; getchar Digit addChar; getChar A Digit addchar; getchar DOT (.) addchar, getchar DOT (.) addchar; getchar float Digit addchar; getchar

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

Try recognizing the following tokens with the given state diagram. For each part, describe how the token is accepted or reject.

a) -.453

b) 0.000032 

Letter/Digit
addChar; getChar
Letter
Start
id
return lookup (lexeme)
addChar; getChar
Digit
+/-
int
return Int Lit
addChar; getChar
return Float Lit
addchar; getchar
Digit
addChar; getChar
A
Digit
addchar; getchar
DOT (.)
addchar, getchar
DOT (.)
addchar; getchar
float
Digit
addchar; getchar
Transcribed Image Text:Letter/Digit addChar; getChar Letter Start id return lookup (lexeme) addChar; getChar Digit +/- int return Int Lit addChar; getChar return Float Lit addchar; getchar Digit addChar; getChar A Digit addchar; getchar DOT (.) addchar, getchar DOT (.) addchar; getchar float Digit addchar; getchar
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