EBK CONCEPTS OF PROGRAMMING LANGUAGES
EBK CONCEPTS OF PROGRAMMING LANGUAGES
12th Edition
ISBN: 9780135102251
Author: Sebesta
Publisher: VST
Expert Solution & Answer
Book Icon
Chapter 4, Problem 2RQ

Explanation of Solution

Lexical analysis and syntax analysis:

Syntax analyzer phase in compilation process is the step in which the “tokens” in the programs are identified and recognize whether they are specified in a valid way. In simple words, tokens are the keywords, identifiers and operators in a program. Often, syntax analysis consists of two parts, namely:

  • Lexical analysis: It does the analysis of small language constructs like names and numeric literals.
  • Syntax analysis: It does the analysis of large constructs like expressions and program units.

The following three reasons explain why lexical analysis is a separate part from the syntax analyzing process.

Simplicity:

The process of lexical analysis needs relatively less complex techniques than syntax analysis. So, separating low-level details of lexical analysis from syntax analysis make the process of lexical analysis simple, small and clean...

Blurred answer
Students have asked these similar questions
What is the shortest path from vertex 3 to all other vertices:Which graph algorithm can solve the problem most efficiently(the quickest runtime)How could the same algorithm if the graph had edge weights? (create intermediate nodes)
The difference between (1) a database management system (DBMS) and (2) a database, is:     a. The first refers to a complete accounting system, the second refers to a subset of that b. The first is program software, the second is proprietary data and related files c. The first is hardware, the second is software d. Nothing—these terms are synonyms..
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 10 6*26* 42* 011 11 7* 11* 15* 23* 100 00 4* 12* 20* 101 01 5* 13* 21* 37* Next
Knowledge Booster
Background pattern image
Similar questions
SEE MORE QUESTIONS
Recommended textbooks for you
Text book image
Np Ms Office 365/Excel 2016 I Ntermed
Computer Science
ISBN:9781337508841
Author:Carey
Publisher:Cengage