This is a subset of C++ language. Description of the language as follow: Details Note 1 Reserved words CONST , FLOAT , INT , BREAK , CONTINUE , ELSE , FOR , SWITCH , VOID , CASE , ENUM , SIZEOF , TYPEDEF ,CHAR ,DO , IF , RETURN , UNION , WHILE, GIFT, DEAN, HOD, and, or #DEFINE // define is keyword DEFINE // Nothing #INCLUDE // include is keyword INCLUDE // Nothing 2 Identifiers examples (val1u e, r2ate, C1o_unter, 2test123, etc “_ _” cannot be an identifier. “_” cannot be last symbol of id. Must have one or more digit. Can start with Digit. 3 Numbers example (123,223, 23.5, 0.45 etc) 4 Operators <,>,!=, <>, :=, ==, , +, /,-, >>>,<<<, ++, +=, -=, --, &&, ||, |& as XOR , &| as NOR; 5 User input/output Input>>>, output<<< “>>>” use instead of >> “<<<” use instead of << 6 Punctuations [,{,(,),},],”,” 7 Comments //this is comment / */ Description: For this you have to implement a lexical analyzer, also called a scanner. This includes following parts: 1. Define Lexical Specification (Regular Expressions) for all token types. 2. Generate NFA for each regular expression or complete DFA. 3. Code (Pre Lex and Lexical Analysis) Tools: Language (For Development): C++, JAVA, Python (You can do in any of them in which you are comfortable)

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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This is a subset of C++ language. Description of the language as follow:

		Details	Note
1	Reserved words	CONST , FLOAT , INT , BREAK , CONTINUE , ELSE , FOR , SWITCH , VOID , CASE , ENUM , SIZEOF , TYPEDEF ,CHAR ,DO , IF , RETURN , UNION , WHILE, GIFT, DEAN, HOD, and, or	#DEFINE // define is keyword DEFINE // Nothing #INCLUDE // include is keyword INCLUDE // Nothing
2	Identifiers	examples (val1u e, r2ate, C1o_unter, 2test123, etc	“_ _” cannot be an identifier. “_” cannot be last symbol of id. Must have one or more digit. Can start with Digit.
3	Numbers	example (123,223, 23.5, 0.45 etc)
4	Operators	<,>,!=, <>, :=, ==, *, +, /,-, >>>,<<<, ++, +=, -=, --, &&, \|\|, \|& as XOR , &\| as NOR;
5	User input/output	Input>>>, output<<<	“>>>” use instead of >> “<<<” use instead of <<
6	Punctuations	[,{,(,),},],”,”
7	Comments	//this is comment /* */

Description:
For this you have to implement a lexical analyzer, also called a scanner. This includes following parts:

1. Define Lexical Specification (Regular Expressions) for all
token types.
2. Generate NFA for each regular expression or complete DFA.
3. Code (Pre Lex and Lexical Analysis)

Tools:
Language (For Development): C++, JAVA, Python (You can do in any of them in which you are
comfortable)

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