#include <stdio.h>

extern void printx(int);
extern void printd(int);

int myprintf(const char* format, ...) {
	int* varArg = (int*)(&format + 1);
	int varArgIndex = 0; // Offset by one
	int i = 0;

	char* varArgChar = (char*)(varArg);
	char** varArgStr = (char**)(varArg);
	int* varArgInt =   (int*)(varArg);

	while (format[i] != '\0') {
		if (format[i] == '%') {
			i++;
			if (format[i] == 'c') {
				// print var arg char.
				putchar(varArgChar[varArgIndex]);
				varArgIndex++;
			} else if (format[i] == 's') {
				// loop through each char of string in var arg.
				int j = 0;
				while (varArgStr[varArgIndex][j] != '\0') {
					putchar(varArgStr[varArgIndex][j]);
					j++;
				}
				varArgIndex++;
			} else if (format[i] == 'x') {
				// print the var arg's value in hex through assembly.
				printx(varArgInt[varArgIndex]);
				varArgIndex++;
			} else if (format[i] == 'd') {
				// print the var arg's value in decimal through assembly.
				printd(varArgInt[varArgIndex]);
				varArgIndex++;
			} else if (format[i] == '%') {
				// print an escaped percent symbol.
				putchar('%');
			} else {
				printf("An invalid flag was encountered: %c.", format[i]);
				return 1;
			}
		} else {
			putchar(format[i]);
		}

		i++;
	}

	return 0;
}