/****
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* The MIT License
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*
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* Copyright (c) 2015 Marco Ziccardi
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*
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****/
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(function (global, factory) {
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if (typeof define === 'function' && define.amd) {
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define('timsort', ['exports'], factory);
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} else if (typeof exports !== 'undefined') {
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factory(exports);
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} else {
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var mod = {
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exports: {}
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};
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factory(mod.exports);
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global.timsort = mod.exports;
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}
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})(this, function (exports) {
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'use strict';
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exports.__esModule = true;
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exports.sort = sort;
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function _classCallCheck(instance, Constructor) {
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if (!(instance instanceof Constructor)) {
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throw new TypeError('Cannot call a class as a function');
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}
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}
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var DEFAULT_MIN_MERGE = 32;
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var DEFAULT_MIN_GALLOPING = 7;
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var DEFAULT_TMP_STORAGE_LENGTH = 256;
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var POWERS_OF_TEN = [1e0, 1e1, 1e2, 1e3, 1e4, 1e5, 1e6, 1e7, 1e8, 1e9];
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function log10(x) {
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if (x < 1e5) {
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if (x < 1e2) {
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return x < 1e1 ? 0 : 1;
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}
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|
if (x < 1e4) {
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return x < 1e3 ? 2 : 3;
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}
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return 4;
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}
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|
if (x < 1e7) {
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return x < 1e6 ? 5 : 6;
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}
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if (x < 1e9) {
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return x < 1e8 ? 7 : 8;
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}
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return 9;
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}
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function alphabeticalCompare(a, b) {
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if (a === b) {
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return 0;
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}
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if (~ ~a === a && ~ ~b === b) {
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if (a === 0 || b === 0) {
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return a < b ? -1 : 1;
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}
|
|
if (a < 0 || b < 0) {
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if (b >= 0) {
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return -1;
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}
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if (a >= 0) {
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return 1;
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}
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a = -a;
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b = -b;
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}
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var al = log10(a);
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var bl = log10(b);
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var t = 0;
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if (al < bl) {
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a *= POWERS_OF_TEN[bl - al - 1];
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b /= 10;
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t = -1;
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} else if (al > bl) {
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b *= POWERS_OF_TEN[al - bl - 1];
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a /= 10;
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t = 1;
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}
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if (a === b) {
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return t;
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}
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return a < b ? -1 : 1;
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}
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var aStr = String(a);
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var bStr = String(b);
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if (aStr === bStr) {
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return 0;
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}
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return aStr < bStr ? -1 : 1;
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}
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function minRunLength(n) {
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var r = 0;
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while (n >= DEFAULT_MIN_MERGE) {
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r |= n & 1;
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n >>= 1;
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}
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return n + r;
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}
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function makeAscendingRun(array, lo, hi, compare) {
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var runHi = lo + 1;
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if (runHi === hi) {
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return 1;
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}
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if (compare(array[runHi++], array[lo]) < 0) {
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while (runHi < hi && compare(array[runHi], array[runHi - 1]) < 0) {
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runHi++;
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}
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reverseRun(array, lo, runHi);
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} else {
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while (runHi < hi && compare(array[runHi], array[runHi - 1]) >= 0) {
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runHi++;
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}
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}
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return runHi - lo;
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}
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function reverseRun(array, lo, hi) {
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hi--;
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while (lo < hi) {
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var t = array[lo];
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array[lo++] = array[hi];
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array[hi--] = t;
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}
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}
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function binaryInsertionSort(array, lo, hi, start, compare) {
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if (start === lo) {
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start++;
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}
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for (; start < hi; start++) {
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var pivot = array[start];
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var left = lo;
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var right = start;
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while (left < right) {
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var mid = left + right >>> 1;
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if (compare(pivot, array[mid]) < 0) {
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right = mid;
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} else {
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left = mid + 1;
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}
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}
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var n = start - left;
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switch (n) {
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case 3:
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array[left + 3] = array[left + 2];
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case 2:
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array[left + 2] = array[left + 1];
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case 1:
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array[left + 1] = array[left];
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break;
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default:
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while (n > 0) {
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array[left + n] = array[left + n - 1];
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n--;
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}
|
}
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array[left] = pivot;
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}
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}
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|
function gallopLeft(value, array, start, length, hint, compare) {
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var lastOffset = 0;
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var maxOffset = 0;
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var offset = 1;
|
|
if (compare(value, array[start + hint]) > 0) {
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maxOffset = length - hint;
|
|
while (offset < maxOffset && compare(value, array[start + hint + offset]) > 0) {
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lastOffset = offset;
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offset = (offset << 1) + 1;
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|
if (offset <= 0) {
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offset = maxOffset;
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}
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}
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|
if (offset > maxOffset) {
|
offset = maxOffset;
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}
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lastOffset += hint;
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offset += hint;
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} else {
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maxOffset = hint + 1;
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while (offset < maxOffset && compare(value, array[start + hint - offset]) <= 0) {
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lastOffset = offset;
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offset = (offset << 1) + 1;
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|
if (offset <= 0) {
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offset = maxOffset;
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}
|
}
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if (offset > maxOffset) {
|
offset = maxOffset;
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}
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|
var tmp = lastOffset;
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lastOffset = hint - offset;
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offset = hint - tmp;
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}
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lastOffset++;
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while (lastOffset < offset) {
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var m = lastOffset + (offset - lastOffset >>> 1);
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|
if (compare(value, array[start + m]) > 0) {
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lastOffset = m + 1;
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} else {
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offset = m;
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}
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}
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return offset;
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}
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function gallopRight(value, array, start, length, hint, compare) {
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var lastOffset = 0;
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var maxOffset = 0;
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var offset = 1;
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if (compare(value, array[start + hint]) < 0) {
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maxOffset = hint + 1;
|
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while (offset < maxOffset && compare(value, array[start + hint - offset]) < 0) {
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lastOffset = offset;
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offset = (offset << 1) + 1;
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|
if (offset <= 0) {
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offset = maxOffset;
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}
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}
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|
if (offset > maxOffset) {
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offset = maxOffset;
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}
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var tmp = lastOffset;
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lastOffset = hint - offset;
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offset = hint - tmp;
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} else {
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maxOffset = length - hint;
|
|
while (offset < maxOffset && compare(value, array[start + hint + offset]) >= 0) {
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lastOffset = offset;
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offset = (offset << 1) + 1;
|
|
if (offset <= 0) {
|
offset = maxOffset;
|
}
|
}
|
|
if (offset > maxOffset) {
|
offset = maxOffset;
|
}
|
|
lastOffset += hint;
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offset += hint;
|
}
|
|
lastOffset++;
|
|
while (lastOffset < offset) {
|
var m = lastOffset + (offset - lastOffset >>> 1);
|
|
if (compare(value, array[start + m]) < 0) {
|
offset = m;
|
} else {
|
lastOffset = m + 1;
|
}
|
}
|
|
return offset;
|
}
|
|
var TimSort = (function () {
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function TimSort(array, compare) {
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_classCallCheck(this, TimSort);
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|
this.array = null;
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this.compare = null;
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this.minGallop = DEFAULT_MIN_GALLOPING;
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this.length = 0;
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this.tmpStorageLength = DEFAULT_TMP_STORAGE_LENGTH;
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this.stackLength = 0;
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this.runStart = null;
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this.runLength = null;
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this.stackSize = 0;
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this.array = array;
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this.compare = compare;
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this.length = array.length;
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if (this.length < 2 * DEFAULT_TMP_STORAGE_LENGTH) {
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this.tmpStorageLength = this.length >>> 1;
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}
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this.tmp = new Array(this.tmpStorageLength);
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this.stackLength = this.length < 120 ? 5 : this.length < 1542 ? 10 : this.length < 119151 ? 19 : 40;
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this.runStart = new Array(this.stackLength);
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this.runLength = new Array(this.stackLength);
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}
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TimSort.prototype.pushRun = function pushRun(runStart, runLength) {
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this.runStart[this.stackSize] = runStart;
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this.runLength[this.stackSize] = runLength;
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this.stackSize += 1;
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};
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TimSort.prototype.mergeRuns = function mergeRuns() {
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while (this.stackSize > 1) {
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var n = this.stackSize - 2;
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if (n >= 1 && this.runLength[n - 1] <= this.runLength[n] + this.runLength[n + 1] || n >= 2 && this.runLength[n - 2] <= this.runLength[n] + this.runLength[n - 1]) {
|
|
if (this.runLength[n - 1] < this.runLength[n + 1]) {
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n--;
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}
|
} else if (this.runLength[n] > this.runLength[n + 1]) {
|
break;
|
}
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this.mergeAt(n);
|
}
|
};
|
|
TimSort.prototype.forceMergeRuns = function forceMergeRuns() {
|
while (this.stackSize > 1) {
|
var n = this.stackSize - 2;
|
|
if (n > 0 && this.runLength[n - 1] < this.runLength[n + 1]) {
|
n--;
|
}
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|
this.mergeAt(n);
|
}
|
};
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|
TimSort.prototype.mergeAt = function mergeAt(i) {
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var compare = this.compare;
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var array = this.array;
|
|
var start1 = this.runStart[i];
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var length1 = this.runLength[i];
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var start2 = this.runStart[i + 1];
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var length2 = this.runLength[i + 1];
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this.runLength[i] = length1 + length2;
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if (i === this.stackSize - 3) {
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this.runStart[i + 1] = this.runStart[i + 2];
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this.runLength[i + 1] = this.runLength[i + 2];
|
}
|
|
this.stackSize--;
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|
var k = gallopRight(array[start2], array, start1, length1, 0, compare);
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start1 += k;
|
length1 -= k;
|
|
if (length1 === 0) {
|
return;
|
}
|
|
length2 = gallopLeft(array[start1 + length1 - 1], array, start2, length2, length2 - 1, compare);
|
|
if (length2 === 0) {
|
return;
|
}
|
|
if (length1 <= length2) {
|
this.mergeLow(start1, length1, start2, length2);
|
} else {
|
this.mergeHigh(start1, length1, start2, length2);
|
}
|
};
|
|
TimSort.prototype.mergeLow = function mergeLow(start1, length1, start2, length2) {
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|
var compare = this.compare;
|
var array = this.array;
|
var tmp = this.tmp;
|
var i = 0;
|
|
for (i = 0; i < length1; i++) {
|
tmp[i] = array[start1 + i];
|
}
|
|
var cursor1 = 0;
|
var cursor2 = start2;
|
var dest = start1;
|
|
array[dest++] = array[cursor2++];
|
|
if (--length2 === 0) {
|
for (i = 0; i < length1; i++) {
|
array[dest + i] = tmp[cursor1 + i];
|
}
|
return;
|
}
|
|
if (length1 === 1) {
|
for (i = 0; i < length2; i++) {
|
array[dest + i] = array[cursor2 + i];
|
}
|
array[dest + length2] = tmp[cursor1];
|
return;
|
}
|
|
var minGallop = this.minGallop;
|
|
while (true) {
|
var count1 = 0;
|
var count2 = 0;
|
var exit = false;
|
|
do {
|
if (compare(array[cursor2], tmp[cursor1]) < 0) {
|
array[dest++] = array[cursor2++];
|
count2++;
|
count1 = 0;
|
|
if (--length2 === 0) {
|
exit = true;
|
break;
|
}
|
} else {
|
array[dest++] = tmp[cursor1++];
|
count1++;
|
count2 = 0;
|
if (--length1 === 1) {
|
exit = true;
|
break;
|
}
|
}
|
} while ((count1 | count2) < minGallop);
|
|
if (exit) {
|
break;
|
}
|
|
do {
|
count1 = gallopRight(array[cursor2], tmp, cursor1, length1, 0, compare);
|
|
if (count1 !== 0) {
|
for (i = 0; i < count1; i++) {
|
array[dest + i] = tmp[cursor1 + i];
|
}
|
|
dest += count1;
|
cursor1 += count1;
|
length1 -= count1;
|
if (length1 <= 1) {
|
exit = true;
|
break;
|
}
|
}
|
|
array[dest++] = array[cursor2++];
|
|
if (--length2 === 0) {
|
exit = true;
|
break;
|
}
|
|
count2 = gallopLeft(tmp[cursor1], array, cursor2, length2, 0, compare);
|
|
if (count2 !== 0) {
|
for (i = 0; i < count2; i++) {
|
array[dest + i] = array[cursor2 + i];
|
}
|
|
dest += count2;
|
cursor2 += count2;
|
length2 -= count2;
|
|
if (length2 === 0) {
|
exit = true;
|
break;
|
}
|
}
|
array[dest++] = tmp[cursor1++];
|
|
if (--length1 === 1) {
|
exit = true;
|
break;
|
}
|
|
minGallop--;
|
} while (count1 >= DEFAULT_MIN_GALLOPING || count2 >= DEFAULT_MIN_GALLOPING);
|
|
if (exit) {
|
break;
|
}
|
|
if (minGallop < 0) {
|
minGallop = 0;
|
}
|
|
minGallop += 2;
|
}
|
|
this.minGallop = minGallop;
|
|
if (minGallop < 1) {
|
this.minGallop = 1;
|
}
|
|
if (length1 === 1) {
|
for (i = 0; i < length2; i++) {
|
array[dest + i] = array[cursor2 + i];
|
}
|
array[dest + length2] = tmp[cursor1];
|
} else if (length1 === 0) {
|
throw new Error('mergeLow preconditions were not respected');
|
} else {
|
for (i = 0; i < length1; i++) {
|
array[dest + i] = tmp[cursor1 + i];
|
}
|
}
|
};
|
|
TimSort.prototype.mergeHigh = function mergeHigh(start1, length1, start2, length2) {
|
var compare = this.compare;
|
var array = this.array;
|
var tmp = this.tmp;
|
var i = 0;
|
|
for (i = 0; i < length2; i++) {
|
tmp[i] = array[start2 + i];
|
}
|
|
var cursor1 = start1 + length1 - 1;
|
var cursor2 = length2 - 1;
|
var dest = start2 + length2 - 1;
|
var customCursor = 0;
|
var customDest = 0;
|
|
array[dest--] = array[cursor1--];
|
|
if (--length1 === 0) {
|
customCursor = dest - (length2 - 1);
|
|
for (i = 0; i < length2; i++) {
|
array[customCursor + i] = tmp[i];
|
}
|
|
return;
|
}
|
|
if (length2 === 1) {
|
dest -= length1;
|
cursor1 -= length1;
|
customDest = dest + 1;
|
customCursor = cursor1 + 1;
|
|
for (i = length1 - 1; i >= 0; i--) {
|
array[customDest + i] = array[customCursor + i];
|
}
|
|
array[dest] = tmp[cursor2];
|
return;
|
}
|
|
var minGallop = this.minGallop;
|
|
while (true) {
|
var count1 = 0;
|
var count2 = 0;
|
var exit = false;
|
|
do {
|
if (compare(tmp[cursor2], array[cursor1]) < 0) {
|
array[dest--] = array[cursor1--];
|
count1++;
|
count2 = 0;
|
if (--length1 === 0) {
|
exit = true;
|
break;
|
}
|
} else {
|
array[dest--] = tmp[cursor2--];
|
count2++;
|
count1 = 0;
|
if (--length2 === 1) {
|
exit = true;
|
break;
|
}
|
}
|
} while ((count1 | count2) < minGallop);
|
|
if (exit) {
|
break;
|
}
|
|
do {
|
count1 = length1 - gallopRight(tmp[cursor2], array, start1, length1, length1 - 1, compare);
|
|
if (count1 !== 0) {
|
dest -= count1;
|
cursor1 -= count1;
|
length1 -= count1;
|
customDest = dest + 1;
|
customCursor = cursor1 + 1;
|
|
for (i = count1 - 1; i >= 0; i--) {
|
array[customDest + i] = array[customCursor + i];
|
}
|
|
if (length1 === 0) {
|
exit = true;
|
break;
|
}
|
}
|
|
array[dest--] = tmp[cursor2--];
|
|
if (--length2 === 1) {
|
exit = true;
|
break;
|
}
|
|
count2 = length2 - gallopLeft(array[cursor1], tmp, 0, length2, length2 - 1, compare);
|
|
if (count2 !== 0) {
|
dest -= count2;
|
cursor2 -= count2;
|
length2 -= count2;
|
customDest = dest + 1;
|
customCursor = cursor2 + 1;
|
|
for (i = 0; i < count2; i++) {
|
array[customDest + i] = tmp[customCursor + i];
|
}
|
|
if (length2 <= 1) {
|
exit = true;
|
break;
|
}
|
}
|
|
array[dest--] = array[cursor1--];
|
|
if (--length1 === 0) {
|
exit = true;
|
break;
|
}
|
|
minGallop--;
|
} while (count1 >= DEFAULT_MIN_GALLOPING || count2 >= DEFAULT_MIN_GALLOPING);
|
|
if (exit) {
|
break;
|
}
|
|
if (minGallop < 0) {
|
minGallop = 0;
|
}
|
|
minGallop += 2;
|
}
|
|
this.minGallop = minGallop;
|
|
if (minGallop < 1) {
|
this.minGallop = 1;
|
}
|
|
if (length2 === 1) {
|
dest -= length1;
|
cursor1 -= length1;
|
customDest = dest + 1;
|
customCursor = cursor1 + 1;
|
|
for (i = length1 - 1; i >= 0; i--) {
|
array[customDest + i] = array[customCursor + i];
|
}
|
|
array[dest] = tmp[cursor2];
|
} else if (length2 === 0) {
|
throw new Error('mergeHigh preconditions were not respected');
|
} else {
|
customCursor = dest - (length2 - 1);
|
for (i = 0; i < length2; i++) {
|
array[customCursor + i] = tmp[i];
|
}
|
}
|
};
|
|
return TimSort;
|
})();
|
|
function sort(array, compare, lo, hi) {
|
if (!Array.isArray(array)) {
|
throw new TypeError('Can only sort arrays');
|
}
|
|
if (!compare) {
|
compare = alphabeticalCompare;
|
} else if (typeof compare !== 'function') {
|
hi = lo;
|
lo = compare;
|
compare = alphabeticalCompare;
|
}
|
|
if (!lo) {
|
lo = 0;
|
}
|
if (!hi) {
|
hi = array.length;
|
}
|
|
var remaining = hi - lo;
|
|
if (remaining < 2) {
|
return;
|
}
|
|
var runLength = 0;
|
|
if (remaining < DEFAULT_MIN_MERGE) {
|
runLength = makeAscendingRun(array, lo, hi, compare);
|
binaryInsertionSort(array, lo, hi, lo + runLength, compare);
|
return;
|
}
|
|
var ts = new TimSort(array, compare);
|
|
var minRun = minRunLength(remaining);
|
|
do {
|
runLength = makeAscendingRun(array, lo, hi, compare);
|
if (runLength < minRun) {
|
var force = remaining;
|
if (force > minRun) {
|
force = minRun;
|
}
|
|
binaryInsertionSort(array, lo, lo + force, lo + runLength, compare);
|
runLength = force;
|
}
|
|
ts.pushRun(lo, runLength);
|
ts.mergeRuns();
|
|
remaining -= runLength;
|
lo += runLength;
|
} while (remaining !== 0);
|
|
ts.forceMergeRuns();
|
}
|
});
|
