Lex Program to Check valid Mobile Number (10 Digits)

Lex Program to Check valid Mobile Number (10 Digits)

Source Code:

%{
#include<stdio.h>
%}

%%
[\n] {printf("\n\nEnter mobile Number: ");}

[1-9][0-9]{9} {printf("Mobile number Valid.");}

.* {printf("Mobile number Invalid.");}
%%

int main()
{
printf("\nEnter mobile Number: ");
yylex();
return 0;
}

Output:

• For any query, please comment below.

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