한글 자소 분리 조합

한글자소분리조합.js

var hangul = (function() {
    var ChoSeong = [
        0x3131, 0x3132, 0x3134, 0x3137, 0x3138,
        0x3139, 0x3141, 0x3142, 0x3143, 0x3145,
        0x3146, 0x3147, 0x3148, 0x3149, 0x314a,
        0x314b, 0x314c, 0x314d, 0x314e
    ];

    var JungSeong = [
        0x314f, 0x3150, 0x3151, 0x3152, 0x3153,
        0x3154, 0x3155, 0x3156, 0x3157, 0x3158,
        0x3159, 0x315a, 0x315b, 0x315c, 0x315d,
        0x315e, 0x315f, 0x3160, 0x3161, 0x3162,
        0x3163
    ];

    var JongSeong = [
        0x0000, 0x3131, 0x3132, 0x3133, 0x3134,
        0x3135, 0x3136, 0x3137, 0x3139, 0x313a,
        0x313b, 0x313c, 0x313d, 0x313e, 0x313f,
        0x3140, 0x3141, 0x3142, 0x3144, 0x3145,
        0x3146, 0x3147, 0x3148, 0x314a, 0x314b,
        0x314c, 0x314d, 0x314e
    ];

    var pushCharCode = function(array, charCode) {
        array.push(String.fromCharCode(charCode));
    }

    var split = function(text) {
        var v = [];
        for (var i = 0; i < text.length; i++) {
            var ch = text.charCodeAt(i);
            if (ch >= 0xAC00 && ch <= 0xD7A3) {
                var i1, i2, i3;
                i3 = ch - 0xAC00;
                i1 = Math.floor(i3 / (21 * 28));
                i3 = i3 % (21 * 28);
                i2 = Math.floor(i3 / 28);
                i3 = i3 % 28;
                pushCharCode(v, ChoSeong[i1]);
                pushCharCode(v, JungSeong[i2]);
                if (i3 != 0x0000) pushCharCode(v, JongSeong[i3]);
            } else {
                pushCharCode(v, ch);
            }
        }
        return v;
    }

    var join = function(jaso, more) {
        more = arguments[1] || false;

        var johap = null;
        var johap_stash = null;
        var johap_new = null;
        var res = [];
        var state = 0;

        var contains = function(array, item) {
            return $.inArray(item, array) >= 0;
        }

        for (var i = 0; i < jaso.length; i++) {
            var ch = jaso[i].charCodeAt(0);

            if (!(contains(ChoSeong, ch) || contains(JungSeong, ch) || contains(JongSeong, ch))) {
                if (johap != null) {
                    pushCharCode(res, johap);
                }
                pushCharCode(res, ch);
                johap = null;
                johap_stash = null;
                johap_new = null;
                state = 0;
                continue;
            }

            var jaum = contains(ChoSeong, ch) || contains(JongSeong, ch);
            switch (state) {
                case 0:
                    // (초)
                    if (jaum) {
                        johap = ch;
                        state = 1;
                    } else {
                        if (johap)
                            pushCharCode(res, johap);
                        else
                            pushCharCode(res, ch);
                        johap = null;
                        state = 0;
                    }
                    break;
                case 1:
                    // 초(중)
                    if (!jaum) {
                        johap = 0xAC00 + $.inArray(johap, ChoSeong) * (21 * 28);
                        johap = johap + $.inArray(ch, JungSeong) * 28;
                        state = 2;
                    } else {
                        pushCharCode(res, johap);
                        johap = ch;
                        state = 1;
                    }
                    break;
                case 2:
                    // 초중(초)
                    johap_stash = johap;
                    johap_new = 0xAC00 + $.inArray(ch, ChoSeong) * (21 * 28);
                    johap = johap + $.inArray(ch, JongSeong);
                    state = 3;
                    break;
                case 3:
                    // 초중초(?)
                    if (jaum) { // 초중초(초)
                        pushCharCode(res, johap);
                        johap = 0xAC00 + $.inArray(ch, ChoSeong) * (21 * 28);

                        johap_stash = null;
                        johap_new = null;
                        state = 1;
                    } else { // 초중초(중)
                        pushCharCode(res, johap_stash);
                        johap = johap_new + $.inArray(ch, JungSeong) * 28;

                        johap_stash = null;
                        johap_new = null;
                        state = 2;
                    }
                    break;
            }
        }

        if (johap != null) {
            pushCharCode(res, johap);
        }

        if (more) {
            return res.join("");
        } else {
            return res;
        }
    }

    var split_strict = function(text) {
        var v = [];
        for (var i = 0; i < text.length; i++) {
            var tmp = [];
            var ch = text.charCodeAt(i);
            if (ch >= 0xAC00 && ch <= 0xD7A3) {
                var i1, i2, i3;
                i3 = ch - 0xAC00;
                i1 = Math.floor(i3 / (21 * 28));
                i3 = i3 % (21 * 28);
                i2 = Math.floor(i3 / 28);
                i3 = i3 % 28;
                pushCharCode(tmp, ChoSeong[i1]);
                pushCharCode(tmp, JungSeong[i2]);
                if (i3 != 0x0000) pushCharCode(tmp, JongSeong[i3]);
            } else {
                pushCharCode(tmp, ch);
            }
            v.push(tmp);
        }
        return v;
    }

    var join_strict = function(strict_jaso, more) {
        more = arguments[1] || false;

        var res = [];

        for (var i = 0; i < strict_jaso.length; i++) {
            var chars = strict_jaso[i];
            var johap = join(chars, true);
            res.push(johap);
        }

        if (more) {
            return res.join("");
        } else {
            return res;
        }
    }
    return {
        split: split,
        join: join,
        split_strict: split_strict,
        join_strict: join_strict,
    }
})();