PROGRAM TO COUNT THE NUMBER OF LINES IN THE GIVEN INPUT
Algorithm:-
begin
num_lines=0
num_chars=0
if new line
then num_lines++
end
PROGRAM:
LEX program to count the number of lines in a given input
%{
int num_lines=0;
%}
%%
\n ++num_lines;
%%
main()
{
yylex();
printf(“no of lines=%d”,num_lines);
}
int yywrap()
{
return num_lines;
}
Output:
$./a.out
abcd
1234
^d
No.of lines=2
