Lexical analyzers pattern matcher that can determine all syntax issues with a source program finds variables in an input string and determines which variables are of which type pattern matcher for character strings that finds words and important individual parts of a program. finds words in string and determines if the words belong together

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
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Lexical analyzers
pattern matcher that can determine all syntax issues with a source program
finds variables in an input string and determines which variables are of which type
pattern matcher for character strings that finds words and important individual parts of a program.
finds words in string and determines if the words belong together
O O O O
Transcribed Image Text:Lexical analyzers pattern matcher that can determine all syntax issues with a source program finds variables in an input string and determines which variables are of which type pattern matcher for character strings that finds words and important individual parts of a program. finds words in string and determines if the words belong together O O O O
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