ex14.c

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

//forward declarations
int can_print_it(char ch);
void print_letters(char arg[]);

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

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

void print_letters(char argc[]){
	int i = 0;

	for(i = 0 ; argc[i] != '\0' ; i++){
		char ch = argc[i];

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

	printf("\n");
}

int can_print_it(char ch){
	return isalpha(ch) || isblank(ch);
}

int main(int argc, char *argv[]){
	print_arguments(argc+1, argv);

	return 0;
}