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xsl
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Copyright 2018 Rich Harris
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Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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(function (global, factory) {
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typeof exports === 'object' && typeof module !== 'undefined' ? module.exports = factory() :
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typeof define === 'function' && define.amd ? define(factory) :
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(global = typeof globalThis !== 'undefined' ? globalThis : global || self, global.MagicString = factory());
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})(this, (function () { 'use strict';
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class BitSet {
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constructor(arg) {
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this.bits = arg instanceof BitSet ? arg.bits.slice() : [];
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}
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add(n) {
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this.bits[n >> 5] |= 1 << (n & 31);
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}
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has(n) {
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return !!(this.bits[n >> 5] & (1 << (n & 31)));
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}
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}
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class Chunk {
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constructor(start, end, content) {
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this.start = start;
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this.end = end;
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this.original = content;
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this.intro = '';
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this.outro = '';
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this.content = content;
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this.storeName = false;
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this.edited = false;
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{
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this.previous = null;
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this.next = null;
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}
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}
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appendLeft(content) {
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this.outro += content;
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}
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appendRight(content) {
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this.intro = this.intro + content;
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}
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clone() {
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const chunk = new Chunk(this.start, this.end, this.original);
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chunk.intro = this.intro;
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chunk.outro = this.outro;
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chunk.content = this.content;
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chunk.storeName = this.storeName;
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chunk.edited = this.edited;
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return chunk;
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}
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contains(index) {
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return this.start < index && index < this.end;
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}
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eachNext(fn) {
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let chunk = this;
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while (chunk) {
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fn(chunk);
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chunk = chunk.next;
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}
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}
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eachPrevious(fn) {
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let chunk = this;
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while (chunk) {
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fn(chunk);
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chunk = chunk.previous;
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}
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}
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edit(content, storeName, contentOnly) {
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this.content = content;
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if (!contentOnly) {
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this.intro = '';
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this.outro = '';
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}
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this.storeName = storeName;
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this.edited = true;
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return this;
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}
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prependLeft(content) {
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this.outro = content + this.outro;
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}
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prependRight(content) {
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this.intro = content + this.intro;
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}
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reset() {
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this.intro = '';
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this.outro = '';
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if (this.edited) {
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this.content = this.original;
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this.storeName = false;
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this.edited = false;
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}
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}
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split(index) {
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const sliceIndex = index - this.start;
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const originalBefore = this.original.slice(0, sliceIndex);
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const originalAfter = this.original.slice(sliceIndex);
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this.original = originalBefore;
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const newChunk = new Chunk(index, this.end, originalAfter);
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newChunk.outro = this.outro;
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this.outro = '';
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this.end = index;
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if (this.edited) {
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// after split we should save the edit content record into the correct chunk
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// to make sure sourcemap correct
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// For example:
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// ' test'.trim()
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// split -> ' ' + 'test'
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// ✔️ edit -> '' + 'test'
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// ✖️ edit -> 'test' + ''
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// TODO is this block necessary?...
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newChunk.edit('', false);
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this.content = '';
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} else {
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this.content = originalBefore;
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}
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newChunk.next = this.next;
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if (newChunk.next) newChunk.next.previous = newChunk;
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newChunk.previous = this;
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this.next = newChunk;
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return newChunk;
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}
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toString() {
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return this.intro + this.content + this.outro;
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}
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trimEnd(rx) {
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this.outro = this.outro.replace(rx, '');
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if (this.outro.length) return true;
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const trimmed = this.content.replace(rx, '');
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if (trimmed.length) {
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if (trimmed !== this.content) {
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this.split(this.start + trimmed.length).edit('', undefined, true);
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if (this.edited) {
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// save the change, if it has been edited
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this.edit(trimmed, this.storeName, true);
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}
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}
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return true;
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} else {
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this.edit('', undefined, true);
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this.intro = this.intro.replace(rx, '');
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if (this.intro.length) return true;
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}
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}
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trimStart(rx) {
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this.intro = this.intro.replace(rx, '');
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if (this.intro.length) return true;
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const trimmed = this.content.replace(rx, '');
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if (trimmed.length) {
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if (trimmed !== this.content) {
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const newChunk = this.split(this.end - trimmed.length);
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if (this.edited) {
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// save the change, if it has been edited
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newChunk.edit(trimmed, this.storeName, true);
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}
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this.edit('', undefined, true);
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}
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return true;
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} else {
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this.edit('', undefined, true);
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this.outro = this.outro.replace(rx, '');
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if (this.outro.length) return true;
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}
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}
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}
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// src/vlq.ts
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var comma = ",".charCodeAt(0);
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var semicolon = ";".charCodeAt(0);
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var chars = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
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var intToChar = new Uint8Array(64);
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var charToInt = new Uint8Array(128);
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for (let i = 0; i < chars.length; i++) {
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const c = chars.charCodeAt(i);
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intToChar[i] = c;
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charToInt[c] = i;
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}
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function encodeInteger(builder, num, relative) {
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let delta = num - relative;
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delta = delta < 0 ? -delta << 1 | 1 : delta << 1;
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do {
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let clamped = delta & 31;
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delta >>>= 5;
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if (delta > 0) clamped |= 32;
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builder.write(intToChar[clamped]);
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} while (delta > 0);
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return num;
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}
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// src/strings.ts
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var bufLength = 1024 * 16;
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var td = typeof TextDecoder !== "undefined" ? /* @__PURE__ */ new TextDecoder() : typeof Buffer !== "undefined" ? {
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decode(buf) {
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const out = Buffer.from(buf.buffer, buf.byteOffset, buf.byteLength);
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return out.toString();
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}
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} : {
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decode(buf) {
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let out = "";
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for (let i = 0; i < buf.length; i++) {
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out += String.fromCharCode(buf[i]);
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}
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return out;
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}
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};
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var StringWriter = class {
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constructor() {
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this.pos = 0;
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this.out = "";
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this.buffer = new Uint8Array(bufLength);
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}
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write(v) {
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const { buffer } = this;
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buffer[this.pos++] = v;
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if (this.pos === bufLength) {
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this.out += td.decode(buffer);
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this.pos = 0;
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}
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}
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flush() {
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const { buffer, out, pos } = this;
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return pos > 0 ? out + td.decode(buffer.subarray(0, pos)) : out;
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}
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};
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function encode(decoded) {
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const writer = new StringWriter();
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let sourcesIndex = 0;
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let sourceLine = 0;
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let sourceColumn = 0;
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let namesIndex = 0;
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for (let i = 0; i < decoded.length; i++) {
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const line = decoded[i];
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if (i > 0) writer.write(semicolon);
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if (line.length === 0) continue;
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let genColumn = 0;
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for (let j = 0; j < line.length; j++) {
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const segment = line[j];
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if (j > 0) writer.write(comma);
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genColumn = encodeInteger(writer, segment[0], genColumn);
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if (segment.length === 1) continue;
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sourcesIndex = encodeInteger(writer, segment[1], sourcesIndex);
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sourceLine = encodeInteger(writer, segment[2], sourceLine);
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sourceColumn = encodeInteger(writer, segment[3], sourceColumn);
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if (segme
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