//
// Simple command line echo with ability to specify <cr> and <lf>.
//

#include <fcntl.h>
#include <io.h>
#include <stdio.h>

void main (int argc, char *argv[])
{
    int i, pad;

    // Avoid default Windows mapping of LF to CR-LF.
    _setmode(_fileno(stdout), _O_BINARY);

    pad = 0;
    for (i = 1; i < argc; i += 1) {

        if (strcmp(argv[i], "CR") == 0) {
            putchar('\r');
            pad = 0;

        } else if (strcmp(argv[i], "LF") == 0) {
            putchar('\n');
            pad = 0;

        } else if (strcmp(argv[i], "NUL") == 0) {
            putchar('\0');
            pad = 0;

        } else {
            printf("%s%s", pad ? " " : "", argv[i]);
            pad = 1;
        }
    }
}