int
Tcl_UniCharIsControl(
    int ch)			/* Unicode character to test. */
{
    if (UNICODE_OUT_OF_RANGE(ch)) {
	ch &= 0x1fffff;
	if ((ch == 0xe0001) || ((ch >= 0xe0020) && (ch <= 0xe007f))) {
	    return 1;
	}
	if ((ch >= 0xf0000) && ((ch & 0xffff) <= 0xfffd)) {
	    return 1;
	}
	return 0;
    }
    return ((CONTROL_BITS >> GetCategory(ch)) & 1);
}

/*
 *----------------------------------------------------------------------