box-o-sand/lcthw/ex14.c

#include <stdio.h>
#include <ctype.h>
#include <string.h>

// forward declarations
void print_letters(size_t len, char arg[]);

void print_arguments(int argc, char *argv[])
{
	int i = 0;

	for (i = 0; i < argc; i++) {
		print_letters(strlen(argv[i]), argv[i]);
	}
}

void print_letters(size_t len, char arg[])
{
	int i = 0;

	for (i = 0; i < len; i++) {
		char ch = arg[i];

		if (isprint((int)ch)) {
			printf("'%c' == %d ", ch, ch);
		}
	}

	printf("\n");
}

int main(int argc, char *argv[])
{
	print_arguments(argc, argv);
	return 0;
}