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- "use strict";
- Object.defineProperty(exports, "__esModule", { value: true });
- exports.Trie = exports.createTrieFromBase64 = exports.UTRIE2_INDEX_2_MASK = exports.UTRIE2_INDEX_2_BLOCK_LENGTH = exports.UTRIE2_OMITTED_BMP_INDEX_1_LENGTH = exports.UTRIE2_INDEX_1_OFFSET = exports.UTRIE2_UTF8_2B_INDEX_2_LENGTH = exports.UTRIE2_UTF8_2B_INDEX_2_OFFSET = exports.UTRIE2_INDEX_2_BMP_LENGTH = exports.UTRIE2_LSCP_INDEX_2_LENGTH = exports.UTRIE2_DATA_MASK = exports.UTRIE2_DATA_BLOCK_LENGTH = exports.UTRIE2_LSCP_INDEX_2_OFFSET = exports.UTRIE2_SHIFT_1_2 = exports.UTRIE2_INDEX_SHIFT = exports.UTRIE2_SHIFT_1 = exports.UTRIE2_SHIFT_2 = void 0;
- var Util_1 = require("./Util");
- exports.UTRIE2_SHIFT_2 = 5;
- exports.UTRIE2_SHIFT_1 = 6 + 5;
- exports.UTRIE2_INDEX_SHIFT = 2;
- exports.UTRIE2_SHIFT_1_2 = exports.UTRIE2_SHIFT_1 - exports.UTRIE2_SHIFT_2;
- exports.UTRIE2_LSCP_INDEX_2_OFFSET = 0x10000 >> exports.UTRIE2_SHIFT_2;
- exports.UTRIE2_DATA_BLOCK_LENGTH = 1 << exports.UTRIE2_SHIFT_2;
- exports.UTRIE2_DATA_MASK = exports.UTRIE2_DATA_BLOCK_LENGTH - 1;
- exports.UTRIE2_LSCP_INDEX_2_LENGTH = 0x400 >> exports.UTRIE2_SHIFT_2;
- exports.UTRIE2_INDEX_2_BMP_LENGTH = exports.UTRIE2_LSCP_INDEX_2_OFFSET + exports.UTRIE2_LSCP_INDEX_2_LENGTH;
- exports.UTRIE2_UTF8_2B_INDEX_2_OFFSET = exports.UTRIE2_INDEX_2_BMP_LENGTH;
- exports.UTRIE2_UTF8_2B_INDEX_2_LENGTH = 0x800 >> 6;
- exports.UTRIE2_INDEX_1_OFFSET = exports.UTRIE2_UTF8_2B_INDEX_2_OFFSET + exports.UTRIE2_UTF8_2B_INDEX_2_LENGTH;
- exports.UTRIE2_OMITTED_BMP_INDEX_1_LENGTH = 0x10000 >> exports.UTRIE2_SHIFT_1;
- exports.UTRIE2_INDEX_2_BLOCK_LENGTH = 1 << exports.UTRIE2_SHIFT_1_2;
- exports.UTRIE2_INDEX_2_MASK = exports.UTRIE2_INDEX_2_BLOCK_LENGTH - 1;
- var slice16 = function (view, start, end) {
- if (view.slice) {
- return view.slice(start, end);
- }
- return new Uint16Array(Array.prototype.slice.call(view, start, end));
- };
- var slice32 = function (view, start, end) {
- if (view.slice) {
- return view.slice(start, end);
- }
- return new Uint32Array(Array.prototype.slice.call(view, start, end));
- };
- var createTrieFromBase64 = function (base64, _byteLength) {
- var buffer = Util_1.decode(base64);
- var view32 = Array.isArray(buffer) ? Util_1.polyUint32Array(buffer) : new Uint32Array(buffer);
- var view16 = Array.isArray(buffer) ? Util_1.polyUint16Array(buffer) : new Uint16Array(buffer);
- var headerLength = 24;
- var index = slice16(view16, headerLength / 2, view32[4] / 2);
- var data = view32[5] === 2
- ? slice16(view16, (headerLength + view32[4]) / 2)
- : slice32(view32, Math.ceil((headerLength + view32[4]) / 4));
- return new Trie(view32[0], view32[1], view32[2], view32[3], index, data);
- };
- exports.createTrieFromBase64 = createTrieFromBase64;
- var Trie = (function () {
- function Trie(initialValue, errorValue, highStart, highValueIndex, index, data) {
- this.initialValue = initialValue;
- this.errorValue = errorValue;
- this.highStart = highStart;
- this.highValueIndex = highValueIndex;
- this.index = index;
- this.data = data;
- }
-
- Trie.prototype.get = function (codePoint) {
- var ix;
- if (codePoint >= 0) {
- if (codePoint < 0x0d800 || (codePoint > 0x0dbff && codePoint <= 0x0ffff)) {
-
-
-
- ix = this.index[codePoint >> exports.UTRIE2_SHIFT_2];
- ix = (ix << exports.UTRIE2_INDEX_SHIFT) + (codePoint & exports.UTRIE2_DATA_MASK);
- return this.data[ix];
- }
- if (codePoint <= 0xffff) {
-
-
-
-
-
-
- ix = this.index[exports.UTRIE2_LSCP_INDEX_2_OFFSET + ((codePoint - 0xd800) >> exports.UTRIE2_SHIFT_2)];
- ix = (ix << exports.UTRIE2_INDEX_SHIFT) + (codePoint & exports.UTRIE2_DATA_MASK);
- return this.data[ix];
- }
- if (codePoint < this.highStart) {
-
- ix = exports.UTRIE2_INDEX_1_OFFSET - exports.UTRIE2_OMITTED_BMP_INDEX_1_LENGTH + (codePoint >> exports.UTRIE2_SHIFT_1);
- ix = this.index[ix];
- ix += (codePoint >> exports.UTRIE2_SHIFT_2) & exports.UTRIE2_INDEX_2_MASK;
- ix = this.index[ix];
- ix = (ix << exports.UTRIE2_INDEX_SHIFT) + (codePoint & exports.UTRIE2_DATA_MASK);
- return this.data[ix];
- }
- if (codePoint <= 0x10ffff) {
- return this.data[this.highValueIndex];
- }
- }
-
- return this.errorValue;
- };
- return Trie;
- }());
- exports.Trie = Trie;
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