number_to_korean.js

/**
 * [num2han 숫자를 한글로 변환]
 * @param  {[integer]} num [숫자]
 * @return {[string]}      [한글 숫자]
 * @author http://www.phpschool.com/gnuboard4/bbs/board.php?bo_table=tipntech&wr_id=14981
 */
function num2han(num){
    var i, j=0, k=0;
    var han1 = ["","일","이","삼","사","오","육","칠","팔","구"];
    var han2 = ["","만","억","조","경","해","시","양","구","간"];
    var han3 = ["","십","백","천"];
    var result = "";
    var hangul = String(num);
    var pm = ""; // 부호
    var str = [], str2="";
    var strTmp = [];

    if(Number(num)===0){
        return "영";
    }

    if(hangul.substring(0,1)==="-"){
        pm = "마이너스 ";
        hangul = hangul.substring(1, hangul.length);
    }

    if(hangul.length > han2.length*4){
        return "too much number";
    }

    for(i=hangul.length; i > 0; i=i-4){
        str[j] = hangul.substring(i-4,i);

        for(k=str[j].length;k>0;k--){
            strTmp[k] = (str[j].substring(k-1,k))?str[j].substring(k-1,k):"";
            strTmp[k] = han1[parseInt(strTmp[k])];

            if(strTmp[k]){
                strTmp[k] += han3[str[j].length-k];
            }

            str2 = strTmp[k] + str2;
        }

        str[j] = str2;

        if(str[j]){
            result = str[j]+han2[j]+result;
        }

        // 4자리마다 한칸씩 띄고 보여준다.
        //result = (str[j])? " "+str[j]+han2[j]+result : " " + result;
        j++;
        str2 = "";
    }

    return pm + result;
}