1. Lex program to Describe the present operators in a arithmetic statement.

Lex program to Describe the present operators in a arithmetic statement.

Note: only +,-,/,* Supported.

Program:

%option noyywrap
%{
%}
%%
"=" {printf("\n operator is Equal");}
"+" {printf("\n Operator is Plus");}
"-" {printf("\n Operator is minus");}
"/" {printf("\n Operator is Division");}
"*" {printf("\n Opertor is multiplication");}
[a-zA-z]*[0-9]* { printf("\n Identifier is %s",yytext);}
. return yytext[0];
\n return 0;
%%
main()
{
yylex();
}

Comments

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