static int
hangul_jaso_to_string(ucschar cho, ucschar jung, ucschar jong,
		      ucschar *buf, int len)
{
    ucschar ch = 0;
    int n = 0;

    if (cho) {
	if (jung) {
	    /* have cho, jung, jong or no jong */
	    ch = hangul_jamo_to_syllable(cho, jung, jong);
	    buf[n++] = ch;
	} else {
	    if (jong) {
		/* have cho, jong */
		ch = hangul_jamo_to_cjamo(cho);
		buf[n++] = ch;
		ch = hangul_jamo_to_cjamo(jong);
		buf[n++] = ch;
	    } else {
		/* have cho */
		ch = hangul_jamo_to_cjamo(cho);
		buf[n++] = ch;
	    }
	}
    } else {
	if (jung) {
	    if (jong) {
		/* have jung, jong */
		ch = hangul_jamo_to_cjamo(jung);
		buf[n++] = ch;
		ch = hangul_jamo_to_cjamo(jong);
		buf[n++] = ch;
	    } else {
		/* have jung */
		ch = hangul_jamo_to_cjamo(jung);
		buf[n++] = ch;
	    }
	} else {
	    if (jong) { 
		/* have jong */
		ch = hangul_jamo_to_cjamo(jong);
		buf[n++] = ch;
	    } else {
		/* have nothing */
		buf[n] = 0;
	    }
	}
    }
    buf[n] = 0;

    return n;
}
static int
hangul_jaso_to_string(ucschar cho, ucschar jung, ucschar jong,
		      ucschar *buf, int len)
{
    ucschar ch = 0;
    int n = 0;

    if (cho) {
	if (jung) {
	    /* have cho, jung, jong or no jong */
	    ch = hangul_jamo_to_syllable(cho, jung, jong);
	    if (ch != 0) {
		buf[n++] = ch;
	    } else {
		/* 한글 음절로 표현 불가능한 경우 */
		buf[n++] = cho;
		buf[n++] = jung;
		if (jong != 0)
		    buf[n++] = jong;
	    }
	} else {
	    if (jong) {
		/* have cho, jong */
		buf[n++] = cho;
		buf[n++] = HANGUL_JUNGSEONG_FILLER;
		buf[n++] = jong;
	    } else {
		/* have cho */
		ch = hangul_jamo_to_cjamo(cho);
		if (hangul_is_cjamo(ch)) {
		    buf[n++] = ch;
		} else {
		    buf[n++] = cho;
		    buf[n++] = HANGUL_JUNGSEONG_FILLER;
		}
	    }
	}
    } else {
	if (jung) {
	    if (jong) {
		/* have jung, jong */
		buf[n++] = HANGUL_CHOSEONG_FILLER;
		buf[n++] = jung;
		buf[n++] = jong;
	    } else {
		/* have jung */
		ch = hangul_jamo_to_cjamo(jung);
		if (hangul_is_cjamo(ch)) {
		    buf[n++] = ch;
		} else {
		    buf[n++] = HANGUL_CHOSEONG_FILLER;
		    buf[n++] = jung;
		}
	    }
	} else {
	    if (jong) { 
		/* have jong */
		ch = hangul_jamo_to_cjamo(jong);
		if (hangul_is_cjamo(ch)) {
		    buf[n++] = ch;
		} else {
		    buf[n++] = HANGUL_CHOSEONG_FILLER;
		    buf[n++] = HANGUL_JUNGSEONG_FILLER;
		    buf[n++] = jong;
		}
	    } else {
		/* have nothing */
		buf[n] = 0;
	    }
	}
    }
    buf[n] = 0;

    return n;
}