"use strict";
// Note: the globals that this code exposes are relied on not only by
// front_end/diff but also by front_endthird_party/codemirror
// @ts-nocheck this is a legacy function that's beyond type-checking.
(function () {
    function diff_match_patch() { this.Diff_Timeout = 1; this.Diff_EditCost = 4; this.Match_Threshold = 0.5; this.Match_Distance = 1E3; this.Patch_DeleteThreshold = 0.5; this.Patch_Margin = 4; this.Match_MaxBits = 32; }
    diff_match_patch.prototype.diff_main = function (a, b, c, d) {
        "undefined" == typeof d && (d = 0 >= this.Diff_Timeout ? Number.MAX_VALUE : (new Date).getTime() + 1E3 * this.Diff_Timeout);
        if (null == a || null == b)
            throw Error("Null input. (diff_main)");
        if (a == b)
            return a ? [[0, a]] : [];
        "undefined" == typeof c && (c = !0);
        var e = c, f = this.diff_commonPrefix(a, b);
        c = a.substring(0, f);
        a = a.substring(f);
        b = b.substring(f);
        var f = this.diff_commonSuffix(a, b), g = a.substring(a.length - f);
        a = a.substring(0, a.length - f);
        b = b.substring(0, b.length - f);
        a = this.diff_compute_(a, b, e, d);
        c && a.unshift([0, c]);
        g && a.push([0, g]);
        this.diff_cleanupMerge(a);
        return a;
    };
    diff_match_patch.prototype.diff_compute_ = function (a, b, c, d) {
        if (!a)
            return [[1, b]];
        if (!b)
            return [[-1, a]];
        var e = a.length > b.length ? a : b, f = a.length > b.length ? b : a, g = e.indexOf(f);
        return -1 != g ? (c = [[1, e.substring(0, g)], [0, f], [1, e.substring(g + f.length)]], a.length > b.length && (c[0][0] = c[2][0] = -1), c) : 1 == f.length ? [[-1, a], [1, b]] : (e = this.diff_halfMatch_(a, b)) ? (f = e[0], a = e[1], g = e[2], b = e[3], e = e[4], f = this.diff_main(f, g, c, d), c = this.diff_main(a, b, c, d), f.concat([[0, e]], c)) : c && 100 < a.length && 100 < b.length ? this.diff_lineMode_(a, b, d) : this.diff_bisect_(a, b, d);
    };
    diff_match_patch.prototype.diff_lineMode_ = function (a, b, c) { var d = this.diff_linesToChars_(a, b); a = d.chars1; b = d.chars2; d = d.lineArray; a = this.diff_main(a, b, !1, c); this.diff_charsToLines_(a, d); this.diff_cleanupSemantic(a); a.push([0, ""]); for (var e = d = b = 0, f = "", g = ""; b < a.length;) {
        switch (a[b][0]) {
            case 1:
                e++;
                g += a[b][1];
                break;
            case -1:
                d++;
                f += a[b][1];
                break;
            case 0:
                if (1 <= d && 1 <= e) {
                    a.splice(b - d - e, d + e);
                    b = b - d - e;
                    d = this.diff_main(f, g, !1, c);
                    for (e = d.length - 1; 0 <= e; e--)
                        a.splice(b, 0, d[e]);
                    b += d.length;
                }
                d = e = 0;
                g = f = "";
        }
        b++;
    } a.pop(); return a; };
    diff_match_patch.prototype.diff_bisect_ = function (a, b, c) {
        for (var d = a.length, e = b.length, f = Math.ceil((d + e) / 2), g = f, h = 2 * f, j = Array(h), i = Array(h), k = 0; k < h; k++)
            j[k] = -1, i[k] = -1;
        j[g + 1] = 0;
        i[g + 1] = 0;
        for (var k = d - e, q = 0 != k % 2, r = 0, t = 0, p = 0, w = 0, v = 0; v < f && !((new Date).getTime() > c); v++) {
            for (var n = -v + r; n <= v - t; n += 2) {
                var l = g + n, m;
                m = n == -v || n != v && j[l - 1] < j[l + 1] ? j[l + 1] : j[l - 1] + 1;
                for (var s = m - n; m < d && s < e && a.charAt(m) == b.charAt(s);)
                    m++, s++;
                j[l] = m;
                if (m > d)
                    t += 2;
                else if (s > e)
                    r += 2;
                else if (q && (l = g + k - n, 0 <= l && l < h && -1 != i[l])) {
                    var u = d - i[l];
                    if (m >=
                        u)
                        return this.diff_bisectSplit_(a, b, m, s, c);
                }
            }
            for (n = -v + p; n <= v - w; n += 2) {
                l = g + n;
                u = n == -v || n != v && i[l - 1] < i[l + 1] ? i[l + 1] : i[l - 1] + 1;
                for (m = u - n; u < d && m < e && a.charAt(d - u - 1) == b.charAt(e - m - 1);)
                    u++, m++;
                i[l] = u;
                if (u > d)
                    w += 2;
                else if (m > e)
                    p += 2;
                else if (!q && (l = g + k - n, 0 <= l && (l < h && -1 != j[l]) && (m = j[l], s = g + m - l, u = d - u, m >= u)))
                    return this.diff_bisectSplit_(a, b, m, s, c);
            }
        }
        return [[-1, a], [1, b]];
    };
    diff_match_patch.prototype.diff_bisectSplit_ = function (a, b, c, d, e) { var f = a.substring(0, c), g = b.substring(0, d); a = a.substring(c); b = b.substring(d); f = this.diff_main(f, g, !1, e); e = this.diff_main(a, b, !1, e); return f.concat(e); };
    diff_match_patch.prototype.diff_linesToChars_ = function (a, b) { function c(a) { for (var b = "", c = 0, f = -1, g = d.length; f < a.length - 1;) {
        f = a.indexOf("\n", c);
        -1 == f && (f = a.length - 1);
        var r = a.substring(c, f + 1), c = f + 1;
        (e.hasOwnProperty ? e.hasOwnProperty(r) : void 0 !== e[r]) ? b += String.fromCharCode(e[r]) : (b += String.fromCharCode(g), e[r] = g, d[g++] = r);
    } return b; } var d = [], e = {}; d[0] = ""; var f = c(a), g = c(b); return { chars1: f, chars2: g, lineArray: d }; };
    diff_match_patch.prototype.diff_charsToLines_ = function (a, b) { for (var c = 0; c < a.length; c++) {
        for (var d = a[c][1], e = [], f = 0; f < d.length; f++)
            e[f] = b[d.charCodeAt(f)];
        a[c][1] = e.join("");
    } };
    diff_match_patch.prototype.diff_commonPrefix = function (a, b) { if (!a || !b || a.charAt(0) != b.charAt(0))
        return 0; for (var c = 0, d = Math.min(a.length, b.length), e = d, f = 0; c < e;)
        a.substring(f, e) == b.substring(f, e) ? f = c = e : d = e, e = Math.floor((d - c) / 2 + c); return e; };
    diff_match_patch.prototype.diff_commonSuffix = function (a, b) { if (!a || !b || a.charAt(a.length - 1) != b.charAt(b.length - 1))
        return 0; for (var c = 0, d = Math.min(a.length, b.length), e = d, f = 0; c < e;)
        a.substring(a.length - e, a.length - f) == b.substring(b.length - e, b.length - f) ? f = c = e : d = e, e = Math.floor((d - c) / 2 + c); return e; };
    diff_match_patch.prototype.diff_commonOverlap_ = function (a, b) { var c = a.length, d = b.length; if (0 == c || 0 == d)
        return 0; c > d ? a = a.substring(c - d) : c < d && (b = b.substring(0, c)); c = Math.min(c, d); if (a == b)
        return c; for (var d = 0, e = 1;;) {
        var f = a.substring(c - e), f = b.indexOf(f);
        if (-1 == f)
            return d;
        e += f;
        if (0 == f || a.substring(c - e) == b.substring(0, e))
            d = e, e++;
    } };
    diff_match_patch.prototype.diff_halfMatch_ = function (a, b) {
        function c(a, b, c) { for (var d = a.substring(c, c + Math.floor(a.length / 4)), e = -1, g = "", h, j, n, l; -1 != (e = b.indexOf(d, e + 1));) {
            var m = f.diff_commonPrefix(a.substring(c), b.substring(e)), s = f.diff_commonSuffix(a.substring(0, c), b.substring(0, e));
            g.length < s + m && (g = b.substring(e - s, e) + b.substring(e, e + m), h = a.substring(0, c - s), j = a.substring(c + m), n = b.substring(0, e - s), l = b.substring(e + m));
        } return 2 * g.length >= a.length ? [h, j, n, l, g] : null; }
        if (0 >= this.Diff_Timeout)
            return null;
        var d = a.length > b.length ? a : b, e = a.length > b.length ? b : a;
        if (4 > d.length || 2 * e.length < d.length)
            return null;
        var f = this, g = c(d, e, Math.ceil(d.length / 4)), d = c(d, e, Math.ceil(d.length / 2)), h;
        if (!g && !d)
            return null;
        h = d ? g ? g[4].length > d[4].length ? g : d : d : g;
        var j;
        a.length > b.length ? (g = h[0], d = h[1], e = h[2], j = h[3]) : (e = h[0], j = h[1], g = h[2], d = h[3]);
        h = h[4];
        return [g, d, e, j, h];
    };
    diff_match_patch.prototype.diff_cleanupSemantic = function (a) {
        for (var b = !1, c = [], d = 0, e = null, f = 0, g = 0, h = 0, j = 0, i = 0; f < a.length;)
            0 == a[f][0] ? (c[d++] = f, g = j, h = i, i = j = 0, e = a[f][1]) : (1 == a[f][0] ? j += a[f][1].length : i += a[f][1].length, e && (e.length <= Math.max(g, h) && e.length <= Math.max(j, i)) && (a.splice(c[d - 1], 0, [-1, e]), a[c[d - 1] + 1][0] = 1, d--, d--, f = 0 < d ? c[d - 1] : -1, i = j = h = g = 0, e = null, b = !0)), f++;
        b && this.diff_cleanupMerge(a);
        this.diff_cleanupSemanticLossless(a);
        for (f = 1; f < a.length;) {
            if (-1 == a[f - 1][0] && 1 == a[f][0]) {
                b = a[f - 1][1];
                c = a[f][1];
                d = this.diff_commonOverlap_(b, c);
                e = this.diff_commonOverlap_(c, b);
                if (d >= e) {
                    if (d >= b.length / 2 || d >= c.length / 2)
                        a.splice(f, 0, [0, c.substring(0, d)]), a[f - 1][1] = b.substring(0, b.length - d), a[f + 1][1] = c.substring(d), f++;
                }
                else if (e >= b.length / 2 || e >= c.length / 2)
                    a.splice(f, 0, [0, b.substring(0, e)]), a[f - 1][0] = 1, a[f - 1][1] = c.substring(0, c.length - e), a[f + 1][0] = -1, a[f + 1][1] = b.substring(e), f++;
                f++;
            }
            f++;
        }
    };
    diff_match_patch.prototype.diff_cleanupSemanticLossless = function (a) {
        function b(a, b) {
            if (!a || !b)
                return 6;
            var c = a.charAt(a.length - 1), d = b.charAt(0), e = c.match(diff_match_patch.nonAlphaNumericRegex_), f = d.match(diff_match_patch.nonAlphaNumericRegex_), g = e && c.match(diff_match_patch.whitespaceRegex_), h = f && d.match(diff_match_patch.whitespaceRegex_), c = g && c.match(diff_match_patch.linebreakRegex_), d = h && d.match(diff_match_patch.linebreakRegex_), i = c && a.match(diff_match_patch.blanklineEndRegex_), j = d && b.match(diff_match_patch.blanklineStartRegex_);
            return i || j ? 5 : c || d ? 4 : e && !g && h ? 3 : g || h ? 2 : e || f ? 1 : 0;
        }
        for (var c = 1; c < a.length - 1;) {
            if (0 == a[c - 1][0] && 0 == a[c + 1][0]) {
                var d = a[c - 1][1], e = a[c][1], f = a[c + 1][1], g = this.diff_commonSuffix(d, e);
                if (g)
                    var h = e.substring(e.length - g), d = d.substring(0, d.length - g), e = h + e.substring(0, e.length - g), f = h + f;
                for (var g = d, h = e, j = f, i = b(d, e) + b(e, f); e.charAt(0) === f.charAt(0);) {
                    var d = d + e.charAt(0), e = e.substring(1) + f.charAt(0), f = f.substring(1), k = b(d, e) + b(e, f);
                    k >= i && (i = k, g = d, h = e, j = f);
                }
                a[c - 1][1] != g && (g ? a[c - 1][1] = g : (a.splice(c - 1, 1), c--), a[c][1] =
                    h, j ? a[c + 1][1] = j : (a.splice(c + 1, 1), c--));
            }
            c++;
        }
    };
    diff_match_patch.nonAlphaNumericRegex_ = /[^a-zA-Z0-9]/;
    diff_match_patch.whitespaceRegex_ = /\s/;
    diff_match_patch.linebreakRegex_ = /[\r\n]/;
    diff_match_patch.blanklineEndRegex_ = /\n\r?\n$/;
    diff_match_patch.blanklineStartRegex_ = /^\r?\n\r?\n/;
    diff_match_patch.prototype.diff_cleanupEfficiency = function (a) { for (var b = !1, c = [], d = 0, e = null, f = 0, g = !1, h = !1, j = !1, i = !1; f < a.length;) {
        if (0 == a[f][0])
            a[f][1].length < this.Diff_EditCost && (j || i) ? (c[d++] = f, g = j, h = i, e = a[f][1]) : (d = 0, e = null), j = i = !1;
        else if (-1 == a[f][0] ? i = !0 : j = !0, e && (g && h && j && i || e.length < this.Diff_EditCost / 2 && 3 == g + h + j + i))
            a.splice(c[d - 1], 0, [-1, e]), a[c[d - 1] + 1][0] = 1, d--, e = null, g && h ? (j = i = !0, d = 0) : (d--, f = 0 < d ? c[d - 1] : -1, j = i = !1), b = !0;
        f++;
    } b && this.diff_cleanupMerge(a); };
    diff_match_patch.prototype.diff_cleanupMerge = function (a) {
        a.push([0, ""]);
        for (var b = 0, c = 0, d = 0, e = "", f = "", g; b < a.length;)
            switch (a[b][0]) {
                case 1:
                    d++;
                    f += a[b][1];
                    b++;
                    break;
                case -1:
                    c++;
                    e += a[b][1];
                    b++;
                    break;
                case 0: 1 < c + d ? (0 !== c && 0 !== d && (g = this.diff_commonPrefix(f, e), 0 !== g && (0 < b - c - d && 0 == a[b - c - d - 1][0] ? a[b - c - d - 1][1] += f.substring(0, g) : (a.splice(0, 0, [0, f.substring(0, g)]), b++), f = f.substring(g), e = e.substring(g)), g = this.diff_commonSuffix(f, e), 0 !== g && (a[b][1] = f.substring(f.length - g) + a[b][1], f = f.substring(0, f.length -
                    g), e = e.substring(0, e.length - g))), 0 === c ? a.splice(b - d, c + d, [1, f]) : 0 === d ? a.splice(b - c, c + d, [-1, e]) : a.splice(b - c - d, c + d, [-1, e], [1, f]), b = b - c - d + (c ? 1 : 0) + (d ? 1 : 0) + 1) : 0 !== b && 0 == a[b - 1][0] ? (a[b - 1][1] += a[b][1], a.splice(b, 1)) : b++, c = d = 0, f = e = "";
            }
        "" === a[a.length - 1][1] && a.pop();
        c = !1;
        for (b = 1; b < a.length - 1;)
            0 == a[b - 1][0] && 0 == a[b + 1][0] && (a[b][1].substring(a[b][1].length - a[b - 1][1].length) == a[b - 1][1] ? (a[b][1] = a[b - 1][1] + a[b][1].substring(0, a[b][1].length - a[b - 1][1].length), a[b + 1][1] = a[b - 1][1] + a[b + 1][1], a.splice(b - 1, 1), c = !0) : a[b][1].substring(0, a[b + 1][1].length) == a[b + 1][1] && (a[b - 1][1] += a[b + 1][1], a[b][1] = a[b][1].substring(a[b + 1][1].length) + a[b + 1][1], a.splice(b + 1, 1), c = !0)), b++;
        c && this.diff_cleanupMerge(a);
    };
    diff_match_patch.prototype.diff_xIndex = function (a, b) { var c = 0, d = 0, e = 0, f = 0, g; for (g = 0; g < a.length; g++) {
        1 !== a[g][0] && (c += a[g][1].length);
        -1 !== a[g][0] && (d += a[g][1].length);
        if (c > b)
            break;
        e = c;
        f = d;
    } return a.length != g && -1 === a[g][0] ? f : f + (b - e); };
    diff_match_patch.prototype.diff_prettyHtml = function (a) { for (var b = [], c = /&/g, d = /</g, e = />/g, f = /\n/g, g = 0; g < a.length; g++) {
        var h = a[g][0], j = a[g][1], j = j.replace(c, "&amp;").replace(d, "&lt;").replace(e, "&gt;").replace(f, "&para;<br>");
        switch (h) {
            case 1:
                b[g] = '<ins style="background:#e6ffe6;">' + j + "</ins>";
                break;
            case -1:
                b[g] = '<del style="background:#ffe6e6;">' + j + "</del>";
                break;
            case 0: b[g] = "<span>" + j + "</span>";
        }
    } return b.join(""); };
    diff_match_patch.prototype.diff_text1 = function (a) { for (var b = [], c = 0; c < a.length; c++)
        1 !== a[c][0] && (b[c] = a[c][1]); return b.join(""); };
    diff_match_patch.prototype.diff_text2 = function (a) { for (var b = [], c = 0; c < a.length; c++)
        -1 !== a[c][0] && (b[c] = a[c][1]); return b.join(""); };
    diff_match_patch.prototype.diff_levenshtein = function (a) { for (var b = 0, c = 0, d = 0, e = 0; e < a.length; e++) {
        var f = a[e][0], g = a[e][1];
        switch (f) {
            case 1:
                c += g.length;
                break;
            case -1:
                d += g.length;
                break;
            case 0: b += Math.max(c, d), d = c = 0;
        }
    } return b += Math.max(c, d); };
    diff_match_patch.prototype.diff_toDelta = function (a) { for (var b = [], c = 0; c < a.length; c++)
        switch (a[c][0]) {
            case 1:
                b[c] = "+" + encodeURI(a[c][1]);
                break;
            case -1:
                b[c] = "-" + a[c][1].length;
                break;
            case 0: b[c] = "=" + a[c][1].length;
        } return b.join("\t").replace(/%20/g, " "); };
    diff_match_patch.prototype.diff_fromDelta = function (a, b) {
        for (var c = [], d = 0, e = 0, f = b.split(/\t/g), g = 0; g < f.length; g++) {
            var h = f[g].substring(1);
            switch (f[g].charAt(0)) {
                case "+":
                    try {
                        c[d++] = [1, decodeURI(h)];
                    }
                    catch (j) {
                        throw Error("Illegal escape in diff_fromDelta: " + h);
                    }
                    break;
                case "-":
                case "=":
                    var i = parseInt(h, 10);
                    if (isNaN(i) || 0 > i)
                        throw Error("Invalid number in diff_fromDelta: " + h);
                    h = a.substring(e, e += i);
                    "=" == f[g].charAt(0) ? c[d++] = [0, h] : c[d++] = [-1, h];
                    break;
                default: if (f[g])
                    throw Error("Invalid diff operation in diff_fromDelta: " +
                        f[g]);
            }
        }
        if (e != a.length)
            throw Error("Delta length (" + e + ") does not equal source text length (" + a.length + ").");
        return c;
    };
    diff_match_patch.prototype.match_main = function (a, b, c) { if (null == a || null == b || null == c)
        throw Error("Null input. (match_main)"); c = Math.max(0, Math.min(c, a.length)); return a == b ? 0 : a.length ? a.substring(c, c + b.length) == b ? c : this.match_bitap_(a, b, c) : -1; };
    diff_match_patch.prototype.match_bitap_ = function (a, b, c) {
        function d(a, d) { var e = a / b.length, g = Math.abs(c - d); return !f.Match_Distance ? g ? 1 : e : e + g / f.Match_Distance; }
        if (b.length > this.Match_MaxBits)
            throw Error("Pattern too long for this browser.");
        var e = this.match_alphabet_(b), f = this, g = this.Match_Threshold, h = a.indexOf(b, c);
        -1 != h && (g = Math.min(d(0, h), g), h = a.lastIndexOf(b, c + b.length), -1 != h && (g = Math.min(d(0, h), g)));
        for (var j = 1 << b.length - 1, h = -1, i, k, q = b.length + a.length, r, t = 0; t < b.length; t++) {
            i = 0;
            for (k = q; i < k;)
                d(t, c +
                    k) <= g ? i = k : q = k, k = Math.floor((q - i) / 2 + i);
            q = k;
            i = Math.max(1, c - k + 1);
            var p = Math.min(c + k, a.length) + b.length;
            k = Array(p + 2);
            for (k[p + 1] = (1 << t) - 1; p >= i; p--) {
                var w = e[a.charAt(p - 1)];
                k[p] = 0 === t ? (k[p + 1] << 1 | 1) & w : (k[p + 1] << 1 | 1) & w | ((r[p + 1] | r[p]) << 1 | 1) | r[p + 1];
                if (k[p] & j && (w = d(t, p - 1), w <= g))
                    if (g = w, h = p - 1, h > c)
                        i = Math.max(1, 2 * c - h);
                    else
                        break;
            }
            if (d(t + 1, c) > g)
                break;
            r = k;
        }
        return h;
    };
    diff_match_patch.prototype.match_alphabet_ = function (a) { for (var b = {}, c = 0; c < a.length; c++)
        b[a.charAt(c)] = 0; for (c = 0; c < a.length; c++)
        b[a.charAt(c)] |= 1 << a.length - c - 1; return b; };
    diff_match_patch.prototype.patch_addContext_ = function (a, b) {
        if (0 != b.length) {
            for (var c = b.substring(a.start2, a.start2 + a.length1), d = 0; b.indexOf(c) != b.lastIndexOf(c) && c.length < this.Match_MaxBits - this.Patch_Margin - this.Patch_Margin;)
                d += this.Patch_Margin, c = b.substring(a.start2 - d, a.start2 + a.length1 + d);
            d += this.Patch_Margin;
            (c = b.substring(a.start2 - d, a.start2)) && a.diffs.unshift([0, c]);
            (d = b.substring(a.start2 + a.length1, a.start2 + a.length1 + d)) && a.diffs.push([0, d]);
            a.start1 -= c.length;
            a.start2 -= c.length;
            a.length1 +=
                c.length + d.length;
            a.length2 += c.length + d.length;
        }
    };
    diff_match_patch.prototype.patch_make = function (a, b, c) {
        var d;
        if ("string" == typeof a && "string" == typeof b && "undefined" == typeof c)
            d = a, b = this.diff_main(d, b, !0), 2 < b.length && (this.diff_cleanupSemantic(b), this.diff_cleanupEfficiency(b));
        else if (a && "object" == typeof a && "undefined" == typeof b && "undefined" == typeof c)
            b = a, d = this.diff_text1(b);
        else if ("string" == typeof a && b && "object" == typeof b && "undefined" == typeof c)
            d = a;
        else if ("string" == typeof a && "string" == typeof b && c && "object" == typeof c)
            d = a, b = c;
        else
            throw Error("Unknown call format to patch_make.");
        if (0 === b.length)
            return [];
        c = [];
        a = new diff_match_patch.patch_obj;
        for (var e = 0, f = 0, g = 0, h = d, j = 0; j < b.length; j++) {
            var i = b[j][0], k = b[j][1];
            !e && 0 !== i && (a.start1 = f, a.start2 = g);
            switch (i) {
                case 1:
                    a.diffs[e++] = b[j];
                    a.length2 += k.length;
                    d = d.substring(0, g) + k + d.substring(g);
                    break;
                case -1:
                    a.length1 += k.length;
                    a.diffs[e++] = b[j];
                    d = d.substring(0, g) + d.substring(g + k.length);
                    break;
                case 0: k.length <= 2 * this.Patch_Margin && e && b.length != j + 1 ? (a.diffs[e++] = b[j], a.length1 += k.length, a.length2 += k.length) : k.length >= 2 * this.Patch_Margin &&
                    e && (this.patch_addContext_(a, h), c.push(a), a = new diff_match_patch.patch_obj, e = 0, h = d, f = g);
            }
            1 !== i && (f += k.length);
            -1 !== i && (g += k.length);
        }
        e && (this.patch_addContext_(a, h), c.push(a));
        return c;
    };
    diff_match_patch.prototype.patch_deepCopy = function (a) { for (var b = [], c = 0; c < a.length; c++) {
        var d = a[c], e = new diff_match_patch.patch_obj;
        e.diffs = [];
        for (var f = 0; f < d.diffs.length; f++)
            e.diffs[f] = d.diffs[f].slice();
        e.start1 = d.start1;
        e.start2 = d.start2;
        e.length1 = d.length1;
        e.length2 = d.length2;
        b[c] = e;
    } return b; };
    diff_match_patch.prototype.patch_apply = function (a, b) {
        if (0 == a.length)
            return [b, []];
        a = this.patch_deepCopy(a);
        var c = this.patch_addPadding(a);
        b = c + b + c;
        this.patch_splitMax(a);
        for (var d = 0, e = [], f = 0; f < a.length; f++) {
            var g = a[f].start2 + d, h = this.diff_text1(a[f].diffs), j, i = -1;
            if (h.length > this.Match_MaxBits) {
                if (j = this.match_main(b, h.substring(0, this.Match_MaxBits), g), -1 != j && (i = this.match_main(b, h.substring(h.length - this.Match_MaxBits), g + h.length - this.Match_MaxBits), -1 == i || j >= i))
                    j = -1;
            }
            else
                j = this.match_main(b, h, g);
            if (-1 == j)
                e[f] = !1, d -= a[f].length2 - a[f].length1;
            else if (e[f] = !0, d = j - g, g = -1 == i ? b.substring(j, j + h.length) : b.substring(j, i + this.Match_MaxBits), h == g)
                b = b.substring(0, j) + this.diff_text2(a[f].diffs) + b.substring(j + h.length);
            else if (g = this.diff_main(h, g, !1), h.length > this.Match_MaxBits && this.diff_levenshtein(g) / h.length > this.Patch_DeleteThreshold)
                e[f] = !1;
            else {
                this.diff_cleanupSemanticLossless(g);
                for (var h = 0, k, i = 0; i < a[f].diffs.length; i++) {
                    var q = a[f].diffs[i];
                    0 !== q[0] && (k = this.diff_xIndex(g, h));
                    1 === q[0] ? b = b.substring(0, j + k) + q[1] + b.substring(j + k) : -1 === q[0] && (b = b.substring(0, j + k) + b.substring(j + this.diff_xIndex(g, h + q[1].length)));
                    -1 !== q[0] && (h += q[1].length);
                }
            }
        }
        b = b.substring(c.length, b.length - c.length);
        return [b, e];
    };
    diff_match_patch.prototype.patch_addPadding = function (a) {
        for (var b = this.Patch_Margin, c = "", d = 1; d <= b; d++)
            c += String.fromCharCode(d);
        for (d = 0; d < a.length; d++)
            a[d].start1 += b, a[d].start2 += b;
        var d = a[0], e = d.diffs;
        if (0 == e.length || 0 != e[0][0])
            e.unshift([0, c]), d.start1 -= b, d.start2 -= b, d.length1 += b, d.length2 += b;
        else if (b > e[0][1].length) {
            var f = b - e[0][1].length;
            e[0][1] = c.substring(e[0][1].length) + e[0][1];
            d.start1 -= f;
            d.start2 -= f;
            d.length1 += f;
            d.length2 += f;
        }
        d = a[a.length - 1];
        e = d.diffs;
        0 == e.length || 0 != e[e.length - 1][0] ? (e.push([0,
            c]), d.length1 += b, d.length2 += b) : b > e[e.length - 1][1].length && (f = b - e[e.length - 1][1].length, e[e.length - 1][1] += c.substring(0, f), d.length1 += f, d.length2 += f);
        return c;
    };
    diff_match_patch.prototype.patch_splitMax = function (a) {
        for (var b = this.Match_MaxBits, c = 0; c < a.length; c++)
            if (!(a[c].length1 <= b)) {
                var d = a[c];
                a.splice(c--, 1);
                for (var e = d.start1, f = d.start2, g = ""; 0 !== d.diffs.length;) {
                    var h = new diff_match_patch.patch_obj, j = !0;
                    h.start1 = e - g.length;
                    h.start2 = f - g.length;
                    "" !== g && (h.length1 = h.length2 = g.length, h.diffs.push([0, g]));
                    for (; 0 !== d.diffs.length && h.length1 < b - this.Patch_Margin;) {
                        var g = d.diffs[0][0], i = d.diffs[0][1];
                        1 === g ? (h.length2 += i.length, f += i.length, h.diffs.push(d.diffs.shift()),
                            j = !1) : -1 === g && 1 == h.diffs.length && 0 == h.diffs[0][0] && i.length > 2 * b ? (h.length1 += i.length, e += i.length, j = !1, h.diffs.push([g, i]), d.diffs.shift()) : (i = i.substring(0, b - h.length1 - this.Patch_Margin), h.length1 += i.length, e += i.length, 0 === g ? (h.length2 += i.length, f += i.length) : j = !1, h.diffs.push([g, i]), i == d.diffs[0][1] ? d.diffs.shift() : d.diffs[0][1] = d.diffs[0][1].substring(i.length));
                    }
                    g = this.diff_text2(h.diffs);
                    g = g.substring(g.length - this.Patch_Margin);
                    i = this.diff_text1(d.diffs).substring(0, this.Patch_Margin);
                    "" !== i &&
                        (h.length1 += i.length, h.length2 += i.length, 0 !== h.diffs.length && 0 === h.diffs[h.diffs.length - 1][0] ? h.diffs[h.diffs.length - 1][1] += i : h.diffs.push([0, i]));
                    j || a.splice(++c, 0, h);
                }
            }
    };
    diff_match_patch.prototype.patch_toText = function (a) { for (var b = [], c = 0; c < a.length; c++)
        b[c] = a[c]; return b.join(""); };
    diff_match_patch.prototype.patch_fromText = function (a) {
        var b = [];
        if (!a)
            return b;
        a = a.split("\n");
        for (var c = 0, d = /^@@ -(\d+),?(\d*) \+(\d+),?(\d*) @@$/; c < a.length;) {
            var e = a[c].match(d);
            if (!e)
                throw Error("Invalid patch string: " + a[c]);
            var f = new diff_match_patch.patch_obj;
            b.push(f);
            f.start1 = parseInt(e[1], 10);
            "" === e[2] ? (f.start1--, f.length1 = 1) : "0" == e[2] ? f.length1 = 0 : (f.start1--, f.length1 = parseInt(e[2], 10));
            f.start2 = parseInt(e[3], 10);
            "" === e[4] ? (f.start2--, f.length2 = 1) : "0" == e[4] ? f.length2 = 0 : (f.start2--, f.length2 =
                parseInt(e[4], 10));
            for (c++; c < a.length;) {
                e = a[c].charAt(0);
                try {
                    var g = decodeURI(a[c].substring(1));
                }
                catch (h) {
                    throw Error("Illegal escape in patch_fromText: " + g);
                }
                if ("-" == e)
                    f.diffs.push([-1, g]);
                else if ("+" == e)
                    f.diffs.push([1, g]);
                else if (" " == e)
                    f.diffs.push([0, g]);
                else if ("@" == e)
                    break;
                else if ("" !== e)
                    throw Error('Invalid patch mode "' + e + '" in: ' + g);
                c++;
            }
        }
        return b;
    };
    diff_match_patch.patch_obj = function () { this.diffs = []; this.start2 = this.start1 = null; this.length2 = this.length1 = 0; };
    diff_match_patch.patch_obj.prototype.toString = function () { var a, b; a = 0 === this.length1 ? this.start1 + ",0" : 1 == this.length1 ? this.start1 + 1 : this.start1 + 1 + "," + this.length1; b = 0 === this.length2 ? this.start2 + ",0" : 1 == this.length2 ? this.start2 + 1 : this.start2 + 1 + "," + this.length2; a = ["@@ -" + a + " +" + b + " @@\n"]; var c; for (b = 0; b < this.diffs.length; b++) {
        switch (this.diffs[b][0]) {
            case 1:
                c = "+";
                break;
            case -1:
                c = "-";
                break;
            case 0: c = " ";
        }
        a[b + 1] = c + encodeURI(this.diffs[b][1]) + "\n";
    } return a.join("").replace(/%20/g, " "); };
    globalThis.diff_match_patch = diff_match_patch;
    globalThis.DIFF_DELETE = -1;
    globalThis.DIFF_INSERT = 1;
    globalThis.DIFF_EQUAL = 0;
})();
//# sourceMappingURL=diff_match_patch.js.map