Pool_21/first_word.c

/* Assignment name  : first_word
Expected files   : first_word.c
Allowed functions: write
--------------------------------------------------------------------------------

Write a program that takes a string and displays its first word, followed by a
newline.

A word is a section of string delimited by spaces/tabs or by the start/end of
the string.

If the number of parameters is not 1, or if there are no words, simply display
a newline.

Examples:

$> ./first_word "FOR PONY" | cat -e
FOR$
$> ./first_word "this        ...       is sparta, then again, maybe    not" | cat -e
this$
$> ./first_word "   " | cat -e
$
$> ./first_word "a" "b" | cat -e
$
$> ./first_word "  lorem,ipsum  " | cat -e
lorem,ipsum$
$> */

#include <unistd.h>

int	main(int argc, char **argv)
{
	int	i;

	i = 0;
	if (argc != 2)
	{
		write(1, "\n", 1);
	}
	else
	{
		while (argv[1][i])
		{	
			if (argv[1][i] >= 0 && argv[1][i] <= 32)
				i++;
			else
			{
				write(1, &argv[1][i], 1);
				i++;
				if (argv[1][i] >= 0 && argv[1][i] <= 32)
				{
					write (1, "\n", 1);
					return (0);
				}
			}
		}		
	}
		
	
	return (0);
}