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node_modules/webpack/lib/css/CssExportsGenerator.js

@@ -0,0 +1,148 @@
+/*
+	MIT License http://www.opensource.org/licenses/mit-license.php
+	Author Sergey Melyukov @smelukov
+*/
+
+"use strict";
+
+const { ReplaceSource, RawSource, ConcatSource } = require("webpack-sources");
+const { UsageState } = require("../ExportsInfo");
+const Generator = require("../Generator");
+const RuntimeGlobals = require("../RuntimeGlobals");
+const Template = require("../Template");
+
+/** @typedef {import("webpack-sources").Source} Source */
+/** @typedef {import("../Dependency")} Dependency */
+/** @typedef {import("../Generator").GenerateContext} GenerateContext */
+/** @typedef {import("../Generator").UpdateHashContext} UpdateHashContext */
+/** @typedef {import("../Module").ConcatenationBailoutReasonContext} ConcatenationBailoutReasonContext */
+/** @typedef {import("../NormalModule")} NormalModule */
+/** @typedef {import("../util/Hash")} Hash */
+
+/**
+ * @template T
+ * @typedef {import("../InitFragment")<T>} InitFragment
+ */
+
+const TYPES = new Set(["javascript"]);
+
+class CssExportsGenerator extends Generator {
+	constructor() {
+		super();
+	}
+
+	// TODO add getConcatenationBailoutReason to allow concatenation
+	// but how to make it have a module id
+
+	/**
+	 * @param {NormalModule} module module for which the code should be generated
+	 * @param {GenerateContext} generateContext context for generate
+	 * @returns {Source} generated code
+	 */
+	generate(module, generateContext) {
+		const source = new ReplaceSource(new RawSource(""));
+		/** @type {InitFragment<TODO>[]} */
+		const initFragments = [];
+		const cssExports = new Map();
+
+		generateContext.runtimeRequirements.add(RuntimeGlobals.module);
+
+		const runtimeRequirements = new Set();
+
+		const templateContext = {
+			runtimeTemplate: generateContext.runtimeTemplate,
+			dependencyTemplates: generateContext.dependencyTemplates,
+			moduleGraph: generateContext.moduleGraph,
+			chunkGraph: generateContext.chunkGraph,
+			module,
+			runtime: generateContext.runtime,
+			runtimeRequirements: runtimeRequirements,
+			concatenationScope: generateContext.concatenationScope,
+			codeGenerationResults: generateContext.codeGenerationResults,
+			initFragments,
+			cssExports
+		};
+
+		/**
+		 * @param {Dependency} dependency the dependency
+		 */
+		const handleDependency = dependency => {
+			const constructor = /** @type {new (...args: any[]) => Dependency} */ (
+				dependency.constructor
+			);
+			const template = generateContext.dependencyTemplates.get(constructor);
+			if (!template) {
+				throw new Error(
+					"No template for dependency: " + dependency.constructor.name
+				);
+			}
+
+			template.apply(dependency, source, templateContext);
+		};
+		module.dependencies.forEach(handleDependency);
+
+		if (generateContext.concatenationScope) {
+			const source = new ConcatSource();
+			const usedIdentifiers = new Set();
+			for (const [k, v] of cssExports) {
+				let identifier = Template.toIdentifier(k);
+				let i = 0;
+				while (usedIdentifiers.has(identifier)) {
+					identifier = Template.toIdentifier(k + i);
+				}
+				usedIdentifiers.add(identifier);
+				generateContext.concatenationScope.registerExport(k, identifier);
+				source.add(
+					`${
+						generateContext.runtimeTemplate.supportsConst ? "const" : "var"
+					} ${identifier} = ${JSON.stringify(v)};\n`
+				);
+			}
+			return source;
+		} else {
+			const otherUsed =
+				generateContext.moduleGraph
+					.getExportsInfo(module)
+					.otherExportsInfo.getUsed(generateContext.runtime) !==
+				UsageState.Unused;
+			if (otherUsed) {
+				generateContext.runtimeRequirements.add(
+					RuntimeGlobals.makeNamespaceObject
+				);
+			}
+			return new RawSource(
+				`${otherUsed ? `${RuntimeGlobals.makeNamespaceObject}(` : ""}${
+					module.moduleArgument
+				}.exports = {\n${Array.from(
+					cssExports,
+					([k, v]) => `\t${JSON.stringify(k)}: ${JSON.stringify(v)}`
+				).join(",\n")}\n}${otherUsed ? ")" : ""};`
+			);
+		}
+	}
+
+	/**
+	 * @param {NormalModule} module fresh module
+	 * @returns {Set<string>} available types (do not mutate)
+	 */
+	getTypes(module) {
+		return TYPES;
+	}
+
+	/**
+	 * @param {NormalModule} module the module
+	 * @param {string=} type source type
+	 * @returns {number} estimate size of the module
+	 */
+	getSize(module, type) {
+		return 42;
+	}
+
+	/**
+	 * @param {Hash} hash hash that will be modified
+	 * @param {UpdateHashContext} updateHashContext context for updating hash
+	 */
+	updateHash(hash, { module }) {}
+}
+
+module.exports = CssExportsGenerator;

node_modules/webpack/lib/css/CssGenerator.js

@@ -0,0 +1,113 @@
+/*
+	MIT License http://www.opensource.org/licenses/mit-license.php
+	Author Sergey Melyukov @smelukov
+*/
+
+"use strict";
+
+const { ReplaceSource } = require("webpack-sources");
+const Generator = require("../Generator");
+const InitFragment = require("../InitFragment");
+const RuntimeGlobals = require("../RuntimeGlobals");
+
+/** @typedef {import("webpack-sources").Source} Source */
+/** @typedef {import("../Dependency")} Dependency */
+/** @typedef {import("../Generator").GenerateContext} GenerateContext */
+/** @typedef {import("../Generator").UpdateHashContext} UpdateHashContext */
+/** @typedef {import("../NormalModule")} NormalModule */
+/** @typedef {import("../util/Hash")} Hash */
+
+const TYPES = new Set(["css"]);
+
+class CssGenerator extends Generator {
+	constructor() {
+		super();
+	}
+
+	/**
+	 * @param {NormalModule} module module for which the code should be generated
+	 * @param {GenerateContext} generateContext context for generate
+	 * @returns {Source} generated code
+	 */
+	generate(module, generateContext) {
+		const originalSource = /** @type {Source} */ (module.originalSource());
+		const source = new ReplaceSource(originalSource);
+		/** @type {InitFragment[]} */
+		const initFragments = [];
+		const cssExports = new Map();
+
+		generateContext.runtimeRequirements.add(RuntimeGlobals.hasCssModules);
+
+		const templateContext = {
+			runtimeTemplate: generateContext.runtimeTemplate,
+			dependencyTemplates: generateContext.dependencyTemplates,
+			moduleGraph: generateContext.moduleGraph,
+			chunkGraph: generateContext.chunkGraph,
+			module,
+			runtime: generateContext.runtime,
+			runtimeRequirements: generateContext.runtimeRequirements,
+			concatenationScope: generateContext.concatenationScope,
+			codeGenerationResults: generateContext.codeGenerationResults,
+			initFragments,
+			cssExports
+		};
+
+		/**
+		 * @param {Dependency} dependency dependency
+		 */
+		const handleDependency = dependency => {
+			const constructor = /** @type {new (...args: any[]) => Dependency} */ (
+				dependency.constructor
+			);
+			const template = generateContext.dependencyTemplates.get(constructor);
+			if (!template) {
+				throw new Error(
+					"No template for dependency: " + dependency.constructor.name
+				);
+			}
+
+			template.apply(dependency, source, templateContext);
+		};
+		module.dependencies.forEach(handleDependency);
+		if (module.presentationalDependencies !== undefined)
+			module.presentationalDependencies.forEach(handleDependency);
+
+		if (cssExports.size > 0) {
+			const data = generateContext.getData();
+			data.set("css-exports", cssExports);
+		}
+
+		return InitFragment.addToSource(source, initFragments, generateContext);
+	}
+
+	/**
+	 * @param {NormalModule} module fresh module
+	 * @returns {Set<string>} available types (do not mutate)
+	 */
+	getTypes(module) {
+		return TYPES;
+	}
+
+	/**
+	 * @param {NormalModule} module the module
+	 * @param {string=} type source type
+	 * @returns {number} estimate size of the module
+	 */
+	getSize(module, type) {
+		const originalSource = module.originalSource();
+
+		if (!originalSource) {
+			return 0;
+		}
+
+		return originalSource.size();
+	}
+
+	/**
+	 * @param {Hash} hash hash that will be modified
+	 * @param {UpdateHashContext} updateHashContext context for updating hash
+	 */
+	updateHash(hash, { module }) {}
+}
+
+module.exports = CssGenerator;

node_modules/webpack/lib/css/CssLoadingRuntimeModule.js

@@ -0,0 +1,473 @@
+/*
+	MIT License http://www.opensource.org/licenses/mit-license.php
+	Author Tobias Koppers @sokra
+*/
+
+"use strict";
+
+const { SyncWaterfallHook } = require("tapable");
+const Compilation = require("../Compilation");
+const RuntimeGlobals = require("../RuntimeGlobals");
+const RuntimeModule = require("../RuntimeModule");
+const Template = require("../Template");
+const compileBooleanMatcher = require("../util/compileBooleanMatcher");
+const { chunkHasCss } = require("./CssModulesPlugin");
+
+/** @typedef {import("../Chunk")} Chunk */
+/** @typedef {import("../ChunkGraph")} ChunkGraph */
+/** @typedef {import("../Compilation").RuntimeRequirementsContext} RuntimeRequirementsContext */
+
+/**
+ * @typedef {Object} JsonpCompilationPluginHooks
+ * @property {SyncWaterfallHook<[string, Chunk]>} createStylesheet
+ */
+
+/** @type {WeakMap<Compilation, JsonpCompilationPluginHooks>} */
+const compilationHooksMap = new WeakMap();
+
+class CssLoadingRuntimeModule extends RuntimeModule {
+	/**
+	 * @param {Compilation} compilation the compilation
+	 * @returns {JsonpCompilationPluginHooks} hooks
+	 */
+	static getCompilationHooks(compilation) {
+		if (!(compilation instanceof Compilation)) {
+			throw new TypeError(
+				"The 'compilation' argument must be an instance of Compilation"
+			);
+		}
+		let hooks = compilationHooksMap.get(compilation);
+		if (hooks === undefined) {
+			hooks = {
+				createStylesheet: new SyncWaterfallHook(["source", "chunk"])
+			};
+			compilationHooksMap.set(compilation, hooks);
+		}
+		return hooks;
+	}
+
+	/**
+	 * @param {Set<string>} runtimeRequirements runtime requirements
+	 */
+	constructor(runtimeRequirements) {
+		super("css loading", 10);
+
+		this._runtimeRequirements = runtimeRequirements;
+	}
+
+	/**
+	 * @returns {string | null} runtime code
+	 */
+	generate() {
+		const { compilation, chunk, _runtimeRequirements } = this;
+		const {
+			chunkGraph,
+			runtimeTemplate,
+			outputOptions: {
+				crossOriginLoading,
+				uniqueName,
+				chunkLoadTimeout: loadTimeout
+			}
+		} = /** @type {Compilation} */ (compilation);
+		const fn = RuntimeGlobals.ensureChunkHandlers;
+		const conditionMap = chunkGraph.getChunkConditionMap(
+			/** @type {Chunk} */ (chunk),
+			/**
+			 * @param {Chunk} chunk the chunk
+			 * @param {ChunkGraph} chunkGraph the chunk graph
+			 * @returns {boolean} true, if the chunk has css
+			 */
+			(chunk, chunkGraph) =>
+				!!chunkGraph.getChunkModulesIterableBySourceType(chunk, "css")
+		);
+		const hasCssMatcher = compileBooleanMatcher(conditionMap);
+
+		const withLoading =
+			_runtimeRequirements.has(RuntimeGlobals.ensureChunkHandlers) &&
+			hasCssMatcher !== false;
+		/** @type {boolean} */
+		const withHmr = _runtimeRequirements.has(
+			RuntimeGlobals.hmrDownloadUpdateHandlers
+		);
+		/** @type {Set<number | string | null>} */
+		const initialChunkIdsWithCss = new Set();
+		/** @type {Set<number | string | null>} */
+		const initialChunkIdsWithoutCss = new Set();
+		for (const c of /** @type {Chunk} */ (chunk).getAllInitialChunks()) {
+			(chunkHasCss(c, chunkGraph)
+				? initialChunkIdsWithCss
+				: initialChunkIdsWithoutCss
+			).add(c.id);
+		}
+
+		if (!withLoading && !withHmr && initialChunkIdsWithCss.size === 0) {
+			return null;
+		}
+
+		const { createStylesheet } = CssLoadingRuntimeModule.getCompilationHooks(
+			/** @type {Compilation} */ (compilation)
+		);
+
+		const stateExpression = withHmr
+			? `${RuntimeGlobals.hmrRuntimeStatePrefix}_css`
+			: undefined;
+
+		const code = Template.asString([
+			"link = document.createElement('link');",
+			uniqueName
+				? 'link.setAttribute("data-webpack", uniqueName + ":" + key);'
+				: "",
+			"link.setAttribute(loadingAttribute, 1);",
+			'link.rel = "stylesheet";',
+			"link.href = url;",
+			crossOriginLoading
+				? crossOriginLoading === "use-credentials"
+					? 'link.crossOrigin = "use-credentials";'
+					: Template.asString([
+							"if (link.href.indexOf(window.location.origin + '/') !== 0) {",
+							Template.indent(
+								`link.crossOrigin = ${JSON.stringify(crossOriginLoading)};`
+							),
+							"}"
+					  ])
+				: ""
+		]);
+
+		/** @type {(str: string) => number} */
+		const cc = str => str.charCodeAt(0);
+		const name = uniqueName
+			? runtimeTemplate.concatenation(
+					"--webpack-",
+					{ expr: "uniqueName" },
+					"-",
+					{ expr: "chunkId" }
+			  )
+			: runtimeTemplate.concatenation("--webpack-", { expr: "chunkId" });
+
+		return Template.asString([
+			"// object to store loaded and loading chunks",
+			"// undefined = chunk not loaded, null = chunk preloaded/prefetched",
+			"// [resolve, reject, Promise] = chunk loading, 0 = chunk loaded",
+			`var installedChunks = ${
+				stateExpression ? `${stateExpression} = ${stateExpression} || ` : ""
+			}{${Array.from(
+				initialChunkIdsWithoutCss,
+				id => `${JSON.stringify(id)}:0`
+			).join(",")}};`,
+			"",
+			uniqueName
+				? `var uniqueName = ${JSON.stringify(
+						runtimeTemplate.outputOptions.uniqueName
+				  )};`
+				: "// data-webpack is not used as build has no uniqueName",
+			`var loadCssChunkData = ${runtimeTemplate.basicFunction(
+				"target, link, chunkId",
+				[
+					`var data, token = "", token2, exports = {}, exportsWithId = [], exportsWithDashes = [], ${
+						withHmr ? "moduleIds = [], " : ""
+					}name = ${name}, i = 0, cc = 1;`,
+					"try {",
+					Template.indent([
+						"if(!link) link = loadStylesheet(chunkId);",
+						// `link.sheet.rules` for legacy browsers
+						"var cssRules = link.sheet.cssRules || link.sheet.rules;",
+						"var j = cssRules.length - 1;",
+						"while(j > -1 && !data) {",
+						Template.indent([
+							"var style = cssRules[j--].style;",
+							"if(!style) continue;",
+							`data = style.getPropertyValue(name);`
+						]),
+						"}"
+					]),
+					"}catch(e){}",
+					"if(!data) {",
+					Template.indent([
+						"data = getComputedStyle(document.head).getPropertyValue(name);"
+					]),
+					"}",
+					"if(!data) return [];",
+					"for(; cc; i++) {",
+					Template.indent([
+						"cc = data.charCodeAt(i);",
+						`if(cc == ${cc("(")}) { token2 = token; token = ""; }`,
+						`else if(cc == ${cc(
+							")"
+						)}) { exports[token2.replace(/^_/, "")] = token.replace(/^_/, ""); token = ""; }`,
+						`else if(cc == ${cc("/")} || cc == ${cc(
+							"%"
+						)}) { token = token.replace(/^_/, ""); exports[token] = token; exportsWithId.push(token); if(cc == ${cc(
+							"%"
+						)}) exportsWithDashes.push(token); token = ""; }`,
+						`else if(!cc || cc == ${cc(
+							","
+						)}) { token = token.replace(/^_/, ""); exportsWithId.forEach(${runtimeTemplate.expressionFunction(
+							`exports[x] = ${
+								uniqueName
+									? runtimeTemplate.concatenation(
+											{ expr: "uniqueName" },
+											"-",
+											{ expr: "token" },
+											"-",
+											{ expr: "exports[x]" }
+									  )
+									: runtimeTemplate.concatenation({ expr: "token" }, "-", {
+											expr: "exports[x]"
+									  })
+							}`,
+							"x"
+						)}); exportsWithDashes.forEach(${runtimeTemplate.expressionFunction(
+							`exports[x] = "--" + exports[x]`,
+							"x"
+						)}); ${
+							RuntimeGlobals.makeNamespaceObject
+						}(exports); target[token] = (${runtimeTemplate.basicFunction(
+							"exports, module",
+							`module.exports = exports;`
+						)}).bind(null, exports); ${
+							withHmr ? "moduleIds.push(token); " : ""
+						}token = ""; exports = {}; exportsWithId.length = 0; }`,
+						`else if(cc == ${cc("\\")}) { token += data[++i] }`,
+						`else { token += data[i]; }`
+					]),
+					"}",
+					`${
+						withHmr ? `if(target == ${RuntimeGlobals.moduleFactories}) ` : ""
+					}installedChunks[chunkId] = 0;`,
+					withHmr ? "return moduleIds;" : ""
+				]
+			)}`,
+			'var loadingAttribute = "data-webpack-loading";',
+			`var loadStylesheet = ${runtimeTemplate.basicFunction(
+				"chunkId, url, done" + (withHmr ? ", hmr" : ""),
+				[
+					'var link, needAttach, key = "chunk-" + chunkId;',
+					withHmr ? "if(!hmr) {" : "",
+					'var links = document.getElementsByTagName("link");',
+					"for(var i = 0; i < links.length; i++) {",
+					Template.indent([
+						"var l = links[i];",
+						`if(l.rel == "stylesheet" && (${
+							withHmr
+								? 'l.href.startsWith(url) || l.getAttribute("href").startsWith(url)'
+								: 'l.href == url || l.getAttribute("href") == url'
+						}${
+							uniqueName
+								? ' || l.getAttribute("data-webpack") == uniqueName + ":" + key'
+								: ""
+						})) { link = l; break; }`
+					]),
+					"}",
+					"if(!done) return link;",
+					withHmr ? "}" : "",
+					"if(!link) {",
+					Template.indent([
+						"needAttach = true;",
+						createStylesheet.call(code, /** @type {Chunk} */ (this.chunk))
+					]),
+					"}",
+					`var onLinkComplete = ${runtimeTemplate.basicFunction(
+						"prev, event",
+						Template.asString([
+							"link.onerror = link.onload = null;",
+							"link.removeAttribute(loadingAttribute);",
+							"clearTimeout(timeout);",
+							'if(event && event.type != "load") link.parentNode.removeChild(link)',
+							"done(event);",
+							"if(prev) return prev(event);"
+						])
+					)};`,
+					"if(link.getAttribute(loadingAttribute)) {",
+					Template.indent([
+						`var timeout = setTimeout(onLinkComplete.bind(null, undefined, { type: 'timeout', target: link }), ${loadTimeout});`,
+						"link.onerror = onLinkComplete.bind(null, link.onerror);",
+						"link.onload = onLinkComplete.bind(null, link.onload);"
+					]),
+					"} else onLinkComplete(undefined, { type: 'load', target: link });", // We assume any existing stylesheet is render blocking
+					withHmr ? "hmr ? document.head.insertBefore(link, hmr) :" : "",
+					"needAttach && document.head.appendChild(link);",
+					"return link;"
+				]
+			)};`,
+			initialChunkIdsWithCss.size > 2
+				? `${JSON.stringify(
+						Array.from(initialChunkIdsWithCss)
+				  )}.forEach(loadCssChunkData.bind(null, ${
+						RuntimeGlobals.moduleFactories
+				  }, 0));`
+				: initialChunkIdsWithCss.size > 0
+				? `${Array.from(
+						initialChunkIdsWithCss,
+						id =>
+							`loadCssChunkData(${
+								RuntimeGlobals.moduleFactories
+							}, 0, ${JSON.stringify(id)});`
+				  ).join("")}`
+				: "// no initial css",
+			"",
+			withLoading
+				? Template.asString([
+						`${fn}.css = ${runtimeTemplate.basicFunction("chunkId, promises", [
+							"// css chunk loading",
+							`var installedChunkData = ${RuntimeGlobals.hasOwnProperty}(installedChunks, chunkId) ? installedChunks[chunkId] : undefined;`,
+							'if(installedChunkData !== 0) { // 0 means "already installed".',
+							Template.indent([
+								"",
+								'// a Promise means "currently loading".',
+								"if(installedChunkData) {",
+								Template.indent(["promises.push(installedChunkData[2]);"]),
+								"} else {",
+								Template.indent([
+									hasCssMatcher === true
+										? "if(true) { // all chunks have CSS"
+										: `if(${hasCssMatcher("chunkId")}) {`,
+									Template.indent([
+										"// setup Promise in chunk cache",
+										`var promise = new Promise(${runtimeTemplate.expressionFunction(
+											`installedChunkData = installedChunks[chunkId] = [resolve, reject]`,
+											"resolve, reject"
+										)});`,
+										"promises.push(installedChunkData[2] = promise);",
+										"",
+										"// start chunk loading",
+										`var url = ${RuntimeGlobals.publicPath} + ${RuntimeGlobals.getChunkCssFilename}(chunkId);`,
+										"// create error before stack unwound to get useful stacktrace later",
+										"var error = new Error();",
+										`var loadingEnded = ${runtimeTemplate.basicFunction(
+											"event",
+											[
+												`if(${RuntimeGlobals.hasOwnProperty}(installedChunks, chunkId)) {`,
+												Template.indent([
+													"installedChunkData = installedChunks[chunkId];",
+													"if(installedChunkData !== 0) installedChunks[chunkId] = undefined;",
+													"if(installedChunkData) {",
+													Template.indent([
+														'if(event.type !== "load") {',
+														Template.indent([
+															"var errorType = event && event.type;",
+															"var realSrc = event && event.target && event.target.src;",
+															"error.message = 'Loading css chunk ' + chunkId + ' failed.\\n(' + errorType + ': ' + realSrc + ')';",
+															"error.name = 'ChunkLoadError';",
+															"error.type = errorType;",
+															"error.request = realSrc;",
+															"installedChunkData[1](error);"
+														]),
+														"} else {",
+														Template.indent([
+															`loadCssChunkData(${RuntimeGlobals.moduleFactories}, link, chunkId);`,
+															"installedChunkData[0]();"
+														]),
+														"}"
+													]),
+													"}"
+												]),
+												"}"
+											]
+										)};`,
+										"var link = loadStylesheet(chunkId, url, loadingEnded);"
+									]),
+									"} else installedChunks[chunkId] = 0;"
+								]),
+								"}"
+							]),
+							"}"
+						])};`
+				  ])
+				: "// no chunk loading",
+			"",
+			withHmr
+				? Template.asString([
+						"var oldTags = [];",
+						"var newTags = [];",
+						`var applyHandler = ${runtimeTemplate.basicFunction("options", [
+							`return { dispose: ${runtimeTemplate.basicFunction(
+								"",
+								[]
+							)}, apply: ${runtimeTemplate.basicFunction("", [
+								"var moduleIds = [];",
+								`newTags.forEach(${runtimeTemplate.expressionFunction(
+									"info[1].sheet.disabled = false",
+									"info"
+								)});`,
+								"while(oldTags.length) {",
+								Template.indent([
+									"var oldTag = oldTags.pop();",
+									"if(oldTag.parentNode) oldTag.parentNode.removeChild(oldTag);"
+								]),
+								"}",
+								"while(newTags.length) {",
+								Template.indent([
+									`var info = newTags.pop();`,
+									`var chunkModuleIds = loadCssChunkData(${RuntimeGlobals.moduleFactories}, info[1], info[0]);`,
+									`chunkModuleIds.forEach(${runtimeTemplate.expressionFunction(
+										"moduleIds.push(id)",
+										"id"
+									)});`
+								]),
+								"}",
+								"return moduleIds;"
+							])} };`
+						])}`,
+						`var cssTextKey = ${runtimeTemplate.returningFunction(
+							`Array.from(link.sheet.cssRules, ${runtimeTemplate.returningFunction(
+								"r.cssText",
+								"r"
+							)}).join()`,
+							"link"
+						)}`,
+						`${
+							RuntimeGlobals.hmrDownloadUpdateHandlers
+						}.css = ${runtimeTemplate.basicFunction(
+							"chunkIds, removedChunks, removedModules, promises, applyHandlers, updatedModulesList",
+							[
+								"applyHandlers.push(applyHandler);",
+								`chunkIds.forEach(${runtimeTemplate.basicFunction("chunkId", [
+									`var filename = ${RuntimeGlobals.getChunkCssFilename}(chunkId);`,
+									`var url = ${RuntimeGlobals.publicPath} + filename;`,
+									"var oldTag = loadStylesheet(chunkId, url);",
+									"if(!oldTag) return;",
+									`promises.push(new Promise(${runtimeTemplate.basicFunction(
+										"resolve, reject",
+										[
+											`var link = loadStylesheet(chunkId, url + (url.indexOf("?") < 0 ? "?" : "&") + "hmr=" + Date.now(), ${runtimeTemplate.basicFunction(
+												"event",
+												[
+													'if(event.type !== "load") {',
+													Template.indent([
+														"var errorType = event && event.type;",
+														"var realSrc = event && event.target && event.target.src;",
+														"error.message = 'Loading css hot update chunk ' + chunkId + ' failed.\\n(' + errorType + ': ' + realSrc + ')';",
+														"error.name = 'ChunkLoadError';",
+														"error.type = errorType;",
+														"error.request = realSrc;",
+														"reject(error);"
+													]),
+													"} else {",
+													Template.indent([
+														"try { if(cssTextKey(oldTag) == cssTextKey(link)) { if(link.parentNode) link.parentNode.removeChild(link); return resolve(); } } catch(e) {}",
+														"var factories = {};",
+														"loadCssChunkData(factories, link, chunkId);",
+														`Object.keys(factories).forEach(${runtimeTemplate.expressionFunction(
+															"updatedModulesList.push(id)",
+															"id"
+														)})`,
+														"link.sheet.disabled = true;",
+														"oldTags.push(oldTag);",
+														"newTags.push([chunkId, link]);",
+														"resolve();"
+													]),
+													"}"
+												]
+											)}, oldTag);`
+										]
+									)}));`
+								])});`
+							]
+						)}`
+				  ])
+				: "// no hmr"
+		]);
+	}
+}
+
+module.exports = CssLoadingRuntimeModule;

node_modules/webpack/lib/css/CssModulesPlugin.js

@@ -0,0 +1,641 @@
+/*
+	MIT License http://www.opensource.org/licenses/mit-license.php
+	Author Tobias Koppers @sokra
+*/
+
+"use strict";
+
+const { ConcatSource, PrefixSource } = require("webpack-sources");
+const CssModule = require("../CssModule");
+const HotUpdateChunk = require("../HotUpdateChunk");
+const {
+	CSS_MODULE_TYPE,
+	CSS_MODULE_TYPE_GLOBAL,
+	CSS_MODULE_TYPE_MODULE,
+	CSS_MODULE_TYPE_AUTO
+} = require("../ModuleTypeConstants");
+const RuntimeGlobals = require("../RuntimeGlobals");
+const SelfModuleFactory = require("../SelfModuleFactory");
+const WebpackError = require("../WebpackError");
+const CssExportDependency = require("../dependencies/CssExportDependency");
+const CssImportDependency = require("../dependencies/CssImportDependency");
+const CssLocalIdentifierDependency = require("../dependencies/CssLocalIdentifierDependency");
+const CssSelfLocalIdentifierDependency = require("../dependencies/CssSelfLocalIdentifierDependency");
+const CssUrlDependency = require("../dependencies/CssUrlDependency");
+const StaticExportsDependency = require("../dependencies/StaticExportsDependency");
+const { compareModulesByIdentifier } = require("../util/comparators");
+const createSchemaValidation = require("../util/create-schema-validation");
+const createHash = require("../util/createHash");
+const memoize = require("../util/memoize");
+const nonNumericOnlyHash = require("../util/nonNumericOnlyHash");
+const CssExportsGenerator = require("./CssExportsGenerator");
+const CssGenerator = require("./CssGenerator");
+const CssParser = require("./CssParser");
+
+/** @typedef {import("webpack-sources").Source} Source */
+/** @typedef {import("../../declarations/WebpackOptions").CssExperimentOptions} CssExperimentOptions */
+/** @typedef {import("../../declarations/WebpackOptions").Output} OutputOptions */
+/** @typedef {import("../Chunk")} Chunk */
+/** @typedef {import("../ChunkGraph")} ChunkGraph */
+/** @typedef {import("../CodeGenerationResults")} CodeGenerationResults */
+/** @typedef {import("../Compilation")} Compilation */
+/** @typedef {import("../Compiler")} Compiler */
+/** @typedef {import("../Module")} Module */
+/** @typedef {import("../util/memoize")} Memoize */
+
+const getCssLoadingRuntimeModule = memoize(() =>
+	require("./CssLoadingRuntimeModule")
+);
+
+/**
+ * @param {string} name name
+ * @returns {{oneOf: [{$ref: string}], definitions: *}} schema
+ */
+const getSchema = name => {
+	const { definitions } = require("../../schemas/WebpackOptions.json");
+	return {
+		definitions,
+		oneOf: [{ $ref: `#/definitions/${name}` }]
+	};
+};
+
+const validateGeneratorOptions = createSchemaValidation(
+	require("../../schemas/plugins/css/CssGeneratorOptions.check.js"),
+	() => getSchema("CssGeneratorOptions"),
+	{
+		name: "Css Modules Plugin",
+		baseDataPath: "parser"
+	}
+);
+const validateParserOptions = createSchemaValidation(
+	require("../../schemas/plugins/css/CssParserOptions.check.js"),
+	() => getSchema("CssParserOptions"),
+	{
+		name: "Css Modules Plugin",
+		baseDataPath: "parser"
+	}
+);
+
+/**
+ * @param {string} str string
+ * @param {boolean=} omitOptionalUnderscore if true, optional underscore is not added
+ * @returns {string} escaped string
+ */
+const escapeCss = (str, omitOptionalUnderscore) => {
+	const escaped = `${str}`.replace(
+		// cspell:word uffff
+		/[^a-zA-Z0-9_\u0081-\uffff-]/g,
+		s => `\\${s}`
+	);
+	return !omitOptionalUnderscore && /^(?!--)[0-9_-]/.test(escaped)
+		? `_${escaped}`
+		: escaped;
+};
+
+const plugin = "CssModulesPlugin";
+
+class CssModulesPlugin {
+	/**
+	 * @param {CssExperimentOptions} options options
+	 */
+	constructor({ exportsOnly = false }) {
+		this._exportsOnly = exportsOnly;
+	}
+	/**
+	 * Apply the plugin
+	 * @param {Compiler} compiler the compiler instance
+	 * @returns {void}
+	 */
+	apply(compiler) {
+		compiler.hooks.compilation.tap(
+			plugin,
+			(compilation, { normalModuleFactory }) => {
+				const selfFactory = new SelfModuleFactory(compilation.moduleGraph);
+				compilation.dependencyFactories.set(
+					CssUrlDependency,
+					normalModuleFactory
+				);
+				compilation.dependencyTemplates.set(
+					CssUrlDependency,
+					new CssUrlDependency.Template()
+				);
+				compilation.dependencyTemplates.set(
+					CssLocalIdentifierDependency,
+					new CssLocalIdentifierDependency.Template()
+				);
+				compilation.dependencyFactories.set(
+					CssSelfLocalIdentifierDependency,
+					selfFactory
+				);
+				compilation.dependencyTemplates.set(
+					CssSelfLocalIdentifierDependency,
+					new CssSelfLocalIdentifierDependency.Template()
+				);
+				compilation.dependencyTemplates.set(
+					CssExportDependency,
+					new CssExportDependency.Template()
+				);
+				compilation.dependencyFactories.set(
+					CssImportDependency,
+					normalModuleFactory
+				);
+				compilation.dependencyTemplates.set(
+					CssImportDependency,
+					new CssImportDependency.Template()
+				);
+				compilation.dependencyTemplates.set(
+					StaticExportsDependency,
+					new StaticExportsDependency.Template()
+				);
+				for (const type of [
+					CSS_MODULE_TYPE,
+					CSS_MODULE_TYPE_GLOBAL,
+					CSS_MODULE_TYPE_MODULE,
+					CSS_MODULE_TYPE_AUTO
+				]) {
+					normalModuleFactory.hooks.createParser
+						.for(type)
+						.tap(plugin, parserOptions => {
+							validateParserOptions(parserOptions);
+
+							switch (type) {
+								case CSS_MODULE_TYPE:
+								case CSS_MODULE_TYPE_AUTO:
+									return new CssParser();
+								case CSS_MODULE_TYPE_GLOBAL:
+									return new CssParser({
+										allowModeSwitch: false
+									});
+								case CSS_MODULE_TYPE_MODULE:
+									return new CssParser({
+										defaultMode: "local"
+									});
+							}
+						});
+					normalModuleFactory.hooks.createGenerator
+						.for(type)
+						.tap(plugin, generatorOptions => {
+							validateGeneratorOptions(generatorOptions);
+							return this._exportsOnly
+								? new CssExportsGenerator()
+								: new CssGenerator();
+						});
+					normalModuleFactory.hooks.createModuleClass
+						.for(type)
+						.tap(plugin, (createData, resolveData) => {
+							if (resolveData.dependencies.length > 0) {
+								// When CSS is imported from CSS there is only one dependency
+								const dependency = resolveData.dependencies[0];
+
+								if (dependency instanceof CssImportDependency) {
+									const parent =
+										/** @type {CssModule} */
+										(compilation.moduleGraph.getParentModule(dependency));
+
+									if (parent instanceof CssModule) {
+										/** @type {import("../CssModule").Inheritance | undefined} */
+										let inheritance;
+
+										if (
+											(parent.cssLayer !== null &&
+												parent.cssLayer !== undefined) ||
+											parent.supports ||
+											parent.media
+										) {
+											if (!inheritance) {
+												inheritance = [];
+											}
+
+											inheritance.push([
+												parent.cssLayer,
+												parent.supports,
+												parent.media
+											]);
+										}
+
+										if (parent.inheritance) {
+											if (!inheritance) {
+												inheritance = [];
+											}
+
+											inheritance.push(...parent.inheritance);
+										}
+
+										return new CssModule({
+											...createData,
+											cssLayer: dependency.layer,
+											supports: dependency.supports,
+											media: dependency.media,
+											inheritance
+										});
+									}
+
+									return new CssModule({
+										...createData,
+										cssLayer: dependency.layer,
+										supports: dependency.supports,
+										media: dependency.media
+									});
+								}
+							}
+
+							return new CssModule(createData);
+						});
+				}
+				const orderedCssModulesPerChunk = new WeakMap();
+				compilation.hooks.afterCodeGeneration.tap("CssModulesPlugin", () => {
+					const { chunkGraph } = compilation;
+					for (const chunk of compilation.chunks) {
+						if (CssModulesPlugin.chunkHasCss(chunk, chunkGraph)) {
+							orderedCssModulesPerChunk.set(
+								chunk,
+								this.getOrderedChunkCssModules(chunk, chunkGraph, compilation)
+							);
+						}
+					}
+				});
+				compilation.hooks.contentHash.tap("CssModulesPlugin", chunk => {
+					const {
+						chunkGraph,
+						outputOptions: {
+							hashSalt,
+							hashDigest,
+							hashDigestLength,
+							hashFunction
+						}
+					} = compilation;
+					const modules = orderedCssModulesPerChunk.get(chunk);
+					if (modules === undefined) return;
+					const hash = createHash(hashFunction);
+					if (hashSalt) hash.update(hashSalt);
+					for (const module of modules) {
+						hash.update(chunkGraph.getModuleHash(module, chunk.runtime));
+					}
+					const digest = /** @type {string} */ (hash.digest(hashDigest));
+					chunk.contentHash.css = nonNumericOnlyHash(digest, hashDigestLength);
+				});
+				compilation.hooks.renderManifest.tap(plugin, (result, options) => {
+					const { chunkGraph } = compilation;
+					const { hash, chunk, codeGenerationResults } = options;
+
+					if (chunk instanceof HotUpdateChunk) return result;
+
+					/** @type {CssModule[] | undefined} */
+					const modules = orderedCssModulesPerChunk.get(chunk);
+					if (modules !== undefined) {
+						result.push({
+							render: () =>
+								this.renderChunk({
+									chunk,
+									chunkGraph,
+									codeGenerationResults,
+									uniqueName: compilation.outputOptions.uniqueName,
+									modules
+								}),
+							filenameTemplate: CssModulesPlugin.getChunkFilenameTemplate(
+								chunk,
+								compilation.outputOptions
+							),
+							pathOptions: {
+								hash,
+								runtime: chunk.runtime,
+								chunk,
+								contentHashType: "css"
+							},
+							identifier: `css${chunk.id}`,
+							hash: chunk.contentHash.css
+						});
+					}
+					return result;
+				});
+				const globalChunkLoading = compilation.outputOptions.chunkLoading;
+				/**
+				 * @param {Chunk} chunk the chunk
+				 * @returns {boolean} true, when enabled
+				 */
+				const isEnabledForChunk = chunk => {
+					const options = chunk.getEntryOptions();
+					const chunkLoading =
+						options && options.chunkLoading !== undefined
+							? options.chunkLoading
+							: globalChunkLoading;
+					return chunkLoading === "jsonp";
+				};
+				const onceForChunkSet = new WeakSet();
+				/**
+				 * @param {Chunk} chunk chunk to check
+				 * @param {Set<string>} set runtime requirements
+				 */
+				const handler = (chunk, set) => {
+					if (onceForChunkSet.has(chunk)) return;
+					onceForChunkSet.add(chunk);
+					if (!isEnabledForChunk(chunk)) return;
+
+					set.add(RuntimeGlobals.publicPath);
+					set.add(RuntimeGlobals.getChunkCssFilename);
+					set.add(RuntimeGlobals.hasOwnProperty);
+					set.add(RuntimeGlobals.moduleFactoriesAddOnly);
+					set.add(RuntimeGlobals.makeNamespaceObject);
+
+					const CssLoadingRuntimeModule = getCssLoadingRuntimeModule();
+					compilation.addRuntimeModule(chunk, new CssLoadingRuntimeModule(set));
+				};
+				compilation.hooks.runtimeRequirementInTree
+					.for(RuntimeGlobals.hasCssModules)
+					.tap(plugin, handler);
+				compilation.hooks.runtimeRequirementInTree
+					.for(RuntimeGlobals.ensureChunkHandlers)
+					.tap(plugin, handler);
+				compilation.hooks.runtimeRequirementInTree
+					.for(RuntimeGlobals.hmrDownloadUpdateHandlers)
+					.tap(plugin, handler);
+			}
+		);
+	}
+
+	/**
+	 * @param {Chunk} chunk chunk
+	 * @param {Iterable<Module>} modules unordered modules
+	 * @param {Compilation} compilation compilation
+	 * @returns {Module[]} ordered modules
+	 */
+	getModulesInOrder(chunk, modules, compilation) {
+		if (!modules) return [];
+
+		/** @type {Module[]} */
+		const modulesList = [...modules];
+
+		// Get ordered list of modules per chunk group
+		// Lists are in reverse order to allow to use Array.pop()
+		const modulesByChunkGroup = Array.from(chunk.groupsIterable, chunkGroup => {
+			const sortedModules = modulesList
+				.map(module => {
+					return {
+						module,
+						index: chunkGroup.getModulePostOrderIndex(module)
+					};
+				})
+				.filter(item => item.index !== undefined)
+				.sort(
+					(a, b) =>
+						/** @type {number} */ (b.index) - /** @type {number} */ (a.index)
+				)
+				.map(item => item.module);
+
+			return { list: sortedModules, set: new Set(sortedModules) };
+		});
+
+		if (modulesByChunkGroup.length === 1)
+			return modulesByChunkGroup[0].list.reverse();
+
+		const compareModuleLists = ({ list: a }, { list: b }) => {
+			if (a.length === 0) {
+				return b.length === 0 ? 0 : 1;
+			} else {
+				if (b.length === 0) return -1;
+				return compareModulesByIdentifier(a[a.length - 1], b[b.length - 1]);
+			}
+		};
+
+		modulesByChunkGroup.sort(compareModuleLists);
+
+		/** @type {Module[]} */
+		const finalModules = [];
+
+		for (;;) {
+			const failedModules = new Set();
+			const list = modulesByChunkGroup[0].list;
+			if (list.length === 0) {
+				// done, everything empty
+				break;
+			}
+			/** @type {Module} */
+			let selectedModule = list[list.length - 1];
+			let hasFailed = undefined;
+			outer: for (;;) {
+				for (const { list, set } of modulesByChunkGroup) {
+					if (list.length === 0) continue;
+					const lastModule = list[list.length - 1];
+					if (lastModule === selectedModule) continue;
+					if (!set.has(selectedModule)) continue;
+					failedModules.add(selectedModule);
+					if (failedModules.has(lastModule)) {
+						// There is a conflict, try other alternatives
+						hasFailed = lastModule;
+						continue;
+					}
+					selectedModule = lastModule;
+					hasFailed = false;
+					continue outer; // restart
+				}
+				break;
+			}
+			if (hasFailed) {
+				// There is a not resolve-able conflict with the selectedModule
+				if (compilation) {
+					// TODO print better warning
+					compilation.warnings.push(
+						new WebpackError(
+							`chunk ${chunk.name || chunk.id}\nConflicting order between ${
+								/** @type {Module} */
+								(hasFailed).readableIdentifier(compilation.requestShortener)
+							} and ${selectedModule.readableIdentifier(
+								compilation.requestShortener
+							)}`
+						)
+					);
+				}
+				selectedModule = /** @type {Module} */ (hasFailed);
+			}
+			// Insert the selected module into the final modules list
+			finalModules.push(selectedModule);
+			// Remove the selected module from all lists
+			for (const { list, set } of modulesByChunkGroup) {
+				const lastModule = list[list.length - 1];
+				if (lastModule === selectedModule) list.pop();
+				else if (hasFailed && set.has(selectedModule)) {
+					const idx = list.indexOf(selectedModule);
+					if (idx >= 0) list.splice(idx, 1);
+				}
+			}
+			modulesByChunkGroup.sort(compareModuleLists);
+		}
+		return finalModules;
+	}
+
+	/**
+	 * @param {Chunk} chunk chunk
+	 * @param {ChunkGraph} chunkGraph chunk graph
+	 * @param {Compilation} compilation compilation
+	 * @returns {Module[]} ordered css modules
+	 */
+	getOrderedChunkCssModules(chunk, chunkGraph, compilation) {
+		return [
+			...this.getModulesInOrder(
+				chunk,
+				/** @type {Iterable<Module>} */
+				(
+					chunkGraph.getOrderedChunkModulesIterableBySourceType(
+						chunk,
+						"css-import",
+						compareModulesByIdentifier
+					)
+				),
+				compilation
+			),
+			...this.getModulesInOrder(
+				chunk,
+				/** @type {Iterable<Module>} */
+				(
+					chunkGraph.getOrderedChunkModulesIterableBySourceType(
+						chunk,
+						"css",
+						compareModulesByIdentifier
+					)
+				),
+				compilation
+			)
+		];
+	}
+
+	/**
+	 * @param {Object} options options
+	 * @param {string | undefined} options.uniqueName unique name
+	 * @param {Chunk} options.chunk chunk
+	 * @param {ChunkGraph} options.chunkGraph chunk graph
+	 * @param {CodeGenerationResults} options.codeGenerationResults code generation results
+	 * @param {CssModule[]} options.modules ordered css modules
+	 * @returns {Source} generated source
+	 */
+	renderChunk({
+		uniqueName,
+		chunk,
+		chunkGraph,
+		codeGenerationResults,
+		modules
+	}) {
+		const source = new ConcatSource();
+		/** @type {string[]} */
+		const metaData = [];
+		for (const module of modules) {
+			try {
+				const codeGenResult = codeGenerationResults.get(module, chunk.runtime);
+
+				let moduleSource =
+					/** @type {Source} */
+					(
+						codeGenResult.sources.get("css") ||
+							codeGenResult.sources.get("css-import")
+					);
+
+				let inheritance = [[module.cssLayer, module.supports, module.media]];
+
+				if (module.inheritance) {
+					inheritance.push(...module.inheritance);
+				}
+
+				for (let i = 0; i < inheritance.length; i++) {
+					const layer = inheritance[i][0];
+					const supports = inheritance[i][1];
+					const media = inheritance[i][2];
+
+					if (media) {
+						moduleSource = new ConcatSource(
+							`@media ${media} {\n`,
+							new PrefixSource("\t", moduleSource),
+							"}\n"
+						);
+					}
+
+					if (supports) {
+						moduleSource = new ConcatSource(
+							`@supports (${supports}) {\n`,
+							new PrefixSource("\t", moduleSource),
+							"}\n"
+						);
+					}
+
+					// Layer can be anonymous
+					if (layer !== undefined && layer !== null) {
+						moduleSource = new ConcatSource(
+							`@layer${layer ? ` ${layer}` : ""} {\n`,
+							new PrefixSource("\t", moduleSource),
+							"}\n"
+						);
+					}
+				}
+
+				if (moduleSource) {
+					source.add(moduleSource);
+					source.add("\n");
+				}
+				/** @type {Map<string, string> | undefined} */
+				const exports =
+					codeGenResult.data && codeGenResult.data.get("css-exports");
+				let moduleId = chunkGraph.getModuleId(module) + "";
+
+				// When `optimization.moduleIds` is `named` the module id is a path, so we need to normalize it between platforms
+				if (typeof moduleId === "string") {
+					moduleId = moduleId.replace(/\\/g, "/");
+				}
+
+				metaData.push(
+					`${
+						exports
+							? Array.from(exports, ([n, v]) => {
+									const shortcutValue = `${
+										uniqueName ? uniqueName + "-" : ""
+									}${moduleId}-${n}`;
+									return v === shortcutValue
+										? `${escapeCss(n)}/`
+										: v === "--" + shortcutValue
+										? `${escapeCss(n)}%`
+										: `${escapeCss(n)}(${escapeCss(v)})`;
+							  }).join("")
+							: ""
+					}${escapeCss(moduleId)}`
+				);
+			} catch (e) {
+				/** @type {Error} */
+				(e).message += `\nduring rendering of css ${module.identifier()}`;
+				throw e;
+			}
+		}
+		source.add(
+			`head{--webpack-${escapeCss(
+				(uniqueName ? uniqueName + "-" : "") + chunk.id,
+				true
+			)}:${metaData.join(",")};}`
+		);
+		return source;
+	}
+
+	/**
+	 * @param {Chunk} chunk chunk
+	 * @param {OutputOptions} outputOptions output options
+	 * @returns {Chunk["cssFilenameTemplate"] | OutputOptions["cssFilename"] | OutputOptions["cssChunkFilename"]} used filename template
+	 */
+	static getChunkFilenameTemplate(chunk, outputOptions) {
+		if (chunk.cssFilenameTemplate) {
+			return chunk.cssFilenameTemplate;
+		} else if (chunk.canBeInitial()) {
+			return outputOptions.cssFilename;
+		} else {
+			return outputOptions.cssChunkFilename;
+		}
+	}
+
+	/**
+	 * @param {Chunk} chunk chunk
+	 * @param {ChunkGraph} chunkGraph chunk graph
+	 * @returns {boolean} true, when the chunk has css
+	 */
+	static chunkHasCss(chunk, chunkGraph) {
+		return (
+			!!chunkGraph.getChunkModulesIterableBySourceType(chunk, "css") ||
+			!!chunkGraph.getChunkModulesIterableBySourceType(chunk, "css-import")
+		);
+	}
+}
+
+module.exports = CssModulesPlugin;

node_modules/webpack/lib/css/walkCssTokens.js

@@ -0,0 +1,790 @@
+/*
+	MIT License http://www.opensource.org/licenses/mit-license.php
+	Author Tobias Koppers @sokra
+*/
+
+"use strict";
+
+/**
+ * @typedef {Object} CssTokenCallbacks
+ * @property {function(string, number): boolean=} isSelector
+ * @property {function(string, number, number, number, number): number=} url
+ * @property {function(string, number, number): number=} string
+ * @property {function(string, number, number): number=} leftParenthesis
+ * @property {function(string, number, number): number=} rightParenthesis
+ * @property {function(string, number, number): number=} pseudoFunction
+ * @property {function(string, number, number): number=} function
+ * @property {function(string, number, number): number=} pseudoClass
+ * @property {function(string, number, number): number=} atKeyword
+ * @property {function(string, number, number): number=} class
+ * @property {function(string, number, number): number=} identifier
+ * @property {function(string, number, number): number=} id
+ * @property {function(string, number, number): number=} leftCurlyBracket
+ * @property {function(string, number, number): number=} rightCurlyBracket
+ * @property {function(string, number, number): number=} semicolon
+ * @property {function(string, number, number): number=} comma
+ */
+
+/** @typedef {function(string, number, CssTokenCallbacks): number} CharHandler */
+
+// spec: https://drafts.csswg.org/css-syntax/
+
+const CC_LINE_FEED = "\n".charCodeAt(0);
+const CC_CARRIAGE_RETURN = "\r".charCodeAt(0);
+const CC_FORM_FEED = "\f".charCodeAt(0);
+
+const CC_TAB = "\t".charCodeAt(0);
+const CC_SPACE = " ".charCodeAt(0);
+
+const CC_SOLIDUS = "/".charCodeAt(0);
+const CC_REVERSE_SOLIDUS = "\\".charCodeAt(0);
+const CC_ASTERISK = "*".charCodeAt(0);
+
+const CC_LEFT_PARENTHESIS = "(".charCodeAt(0);
+const CC_RIGHT_PARENTHESIS = ")".charCodeAt(0);
+const CC_LEFT_CURLY = "{".charCodeAt(0);
+const CC_RIGHT_CURLY = "}".charCodeAt(0);
+const CC_LEFT_SQUARE = "[".charCodeAt(0);
+const CC_RIGHT_SQUARE = "]".charCodeAt(0);
+
+const CC_QUOTATION_MARK = '"'.charCodeAt(0);
+const CC_APOSTROPHE = "'".charCodeAt(0);
+
+const CC_FULL_STOP = ".".charCodeAt(0);
+const CC_COLON = ":".charCodeAt(0);
+const CC_SEMICOLON = ";".charCodeAt(0);
+const CC_COMMA = ",".charCodeAt(0);
+const CC_PERCENTAGE = "%".charCodeAt(0);
+const CC_AT_SIGN = "@".charCodeAt(0);
+
+const CC_LOW_LINE = "_".charCodeAt(0);
+const CC_LOWER_A = "a".charCodeAt(0);
+const CC_LOWER_U = "u".charCodeAt(0);
+const CC_LOWER_E = "e".charCodeAt(0);
+const CC_LOWER_Z = "z".charCodeAt(0);
+const CC_UPPER_A = "A".charCodeAt(0);
+const CC_UPPER_E = "E".charCodeAt(0);
+const CC_UPPER_U = "U".charCodeAt(0);
+const CC_UPPER_Z = "Z".charCodeAt(0);
+const CC_0 = "0".charCodeAt(0);
+const CC_9 = "9".charCodeAt(0);
+
+const CC_NUMBER_SIGN = "#".charCodeAt(0);
+const CC_PLUS_SIGN = "+".charCodeAt(0);
+const CC_HYPHEN_MINUS = "-".charCodeAt(0);
+
+const CC_LESS_THAN_SIGN = "<".charCodeAt(0);
+const CC_GREATER_THAN_SIGN = ">".charCodeAt(0);
+
+/**
+ * @param {number} cc char code
+ * @returns {boolean} true, if cc is a newline
+ */
+const _isNewLine = cc => {
+	return (
+		cc === CC_LINE_FEED || cc === CC_CARRIAGE_RETURN || cc === CC_FORM_FEED
+	);
+};
+
+/** @type {CharHandler} */
+const consumeSpace = (input, pos, callbacks) => {
+	/** @type {number} */
+	let cc;
+	do {
+		pos++;
+		cc = input.charCodeAt(pos);
+	} while (_isWhiteSpace(cc));
+	return pos;
+};
+
+/**
+ * @param {number} cc char code
+ * @returns {boolean} true, if cc is a newline
+ */
+const _isNewline = cc => {
+	return (
+		cc === CC_LINE_FEED || cc === CC_CARRIAGE_RETURN || cc === CC_FORM_FEED
+	);
+};
+
+/**
+ * @param {number} cc char code
+ * @returns {boolean} true, if cc is a space (U+0009 CHARACTER TABULATION or U+0020 SPACE)
+ */
+const _isSpace = cc => {
+	return cc === CC_TAB || cc === CC_SPACE;
+};
+
+/**
+ * @param {number} cc char code
+ * @returns {boolean} true, if cc is a whitespace
+ */
+const _isWhiteSpace = cc => {
+	return _isNewline(cc) || _isSpace(cc);
+};
+
+/**
+ * ident-start code point
+ *
+ * A letter, a non-ASCII code point, or U+005F LOW LINE (_).
+ *
+ * @param {number} cc char code
+ * @returns {boolean} true, if cc is a start code point of an identifier
+ */
+const isIdentStartCodePoint = cc => {
+	return (
+		(cc >= CC_LOWER_A && cc <= CC_LOWER_Z) ||
+		(cc >= CC_UPPER_A && cc <= CC_UPPER_Z) ||
+		cc === CC_LOW_LINE ||
+		cc >= 0x80
+	);
+};
+
+/** @type {CharHandler} */
+const consumeDelimToken = (input, pos, callbacks) => {
+	return pos + 1;
+};
+
+/** @type {CharHandler} */
+const consumeComments = (input, pos, callbacks) => {
+	// If the next two input code point are U+002F SOLIDUS (/) followed by a U+002A
+	// ASTERISK (*), consume them and all following code points up to and including
+	// the first U+002A ASTERISK (*) followed by a U+002F SOLIDUS (/), or up to an
+	// EOF code point. Return to the start of this step.
+	//
+	// If the preceding paragraph ended by consuming an EOF code point, this is a parse error.
+	// But we are silent on errors.
+	if (
+		input.charCodeAt(pos) === CC_SOLIDUS &&
+		input.charCodeAt(pos + 1) === CC_ASTERISK
+	) {
+		pos += 1;
+		while (pos < input.length) {
+			if (
+				input.charCodeAt(pos) === CC_ASTERISK &&
+				input.charCodeAt(pos + 1) === CC_SOLIDUS
+			) {
+				pos += 2;
+				break;
+			}
+			pos++;
+		}
+	}
+	return pos;
+};
+
+/** @type {function(number): CharHandler} */
+const consumeString = quote_cc => (input, pos, callbacks) => {
+	const start = pos;
+	pos = _consumeString(input, pos, quote_cc);
+	if (callbacks.string !== undefined) {
+		pos = callbacks.string(input, start, pos);
+	}
+	return pos;
+};
+
+/**
+ * @param {string} input input
+ * @param {number} pos position
+ * @param {number} quote_cc quote char code
+ * @returns {number} new position
+ */
+const _consumeString = (input, pos, quote_cc) => {
+	pos++;
+	for (;;) {
+		if (pos === input.length) return pos;
+		const cc = input.charCodeAt(pos);
+		if (cc === quote_cc) return pos + 1;
+		if (_isNewLine(cc)) {
+			// bad string
+			return pos;
+		}
+		if (cc === CC_REVERSE_SOLIDUS) {
+			// we don't need to fully parse the escaped code point
+			// just skip over a potential new line
+			pos++;
+			if (pos === input.length) return pos;
+			pos++;
+		} else {
+			pos++;
+		}
+	}
+};
+
+/**
+ * @param {number} cc char code
+ * @returns {boolean} is identifier start code
+ */
+const _isIdentifierStartCode = cc => {
+	return (
+		cc === CC_LOW_LINE ||
+		(cc >= CC_LOWER_A && cc <= CC_LOWER_Z) ||
+		(cc >= CC_UPPER_A && cc <= CC_UPPER_Z) ||
+		cc > 0x80
+	);
+};
+
+/**
+ * @param {number} first first code point
+ * @param {number} second second code point
+ * @returns {boolean} true if two code points are a valid escape
+ */
+const _isTwoCodePointsAreValidEscape = (first, second) => {
+	if (first !== CC_REVERSE_SOLIDUS) return false;
+	if (_isNewLine(second)) return false;
+	return true;
+};
+
+/**
+ * @param {number} cc char code
+ * @returns {boolean} is digit
+ */
+const _isDigit = cc => {
+	return cc >= CC_0 && cc <= CC_9;
+};
+
+/**
+ * @param {string} input input
+ * @param {number} pos position
+ * @returns {boolean} true, if input at pos starts an identifier
+ */
+const _startsIdentifier = (input, pos) => {
+	const cc = input.charCodeAt(pos);
+	if (cc === CC_HYPHEN_MINUS) {
+		if (pos === input.length) return false;
+		const cc = input.charCodeAt(pos + 1);
+		if (cc === CC_HYPHEN_MINUS) return true;
+		if (cc === CC_REVERSE_SOLIDUS) {
+			const cc = input.charCodeAt(pos + 2);
+			return !_isNewLine(cc);
+		}
+		return _isIdentifierStartCode(cc);
+	}
+	if (cc === CC_REVERSE_SOLIDUS) {
+		const cc = input.charCodeAt(pos + 1);
+		return !_isNewLine(cc);
+	}
+	return _isIdentifierStartCode(cc);
+};
+
+/** @type {CharHandler} */
+const consumeNumberSign = (input, pos, callbacks) => {
+	const start = pos;
+	pos++;
+	if (pos === input.length) return pos;
+	if (callbacks.isSelector(input, pos) && _startsIdentifier(input, pos)) {
+		pos = _consumeIdentifier(input, pos, callbacks);
+		if (callbacks.id !== undefined) {
+			return callbacks.id(input, start, pos);
+		}
+	}
+	return pos;
+};
+
+/** @type {CharHandler} */
+const consumeMinus = (input, pos, callbacks) => {
+	const start = pos;
+	pos++;
+	if (pos === input.length) return pos;
+	const cc = input.charCodeAt(pos);
+	// If the input stream starts with a number, reconsume the current input code point, consume a numeric token, and return it.
+	if (cc === CC_FULL_STOP || _isDigit(cc)) {
+		return consumeNumericToken(input, pos, callbacks);
+	} else if (cc === CC_HYPHEN_MINUS) {
+		pos++;
+		if (pos === input.length) return pos;
+		const cc = input.charCodeAt(pos);
+		if (cc === CC_GREATER_THAN_SIGN) {
+			return pos + 1;
+		} else {
+			pos = _consumeIdentifier(input, pos, callbacks);
+			if (callbacks.identifier !== undefined) {
+				return callbacks.identifier(input, start, pos);
+			}
+		}
+	} else if (cc === CC_REVERSE_SOLIDUS) {
+		if (pos + 1 === input.length) return pos;
+		const cc = input.charCodeAt(pos + 1);
+		if (_isNewLine(cc)) return pos;
+		pos = _consumeIdentifier(input, pos, callbacks);
+		if (callbacks.identifier !== undefined) {
+			return callbacks.identifier(input, start, pos);
+		}
+	} else if (_isIdentifierStartCode(cc)) {
+		pos = consumeOtherIdentifier(input, pos - 1, callbacks);
+	}
+	return pos;
+};
+
+/** @type {CharHandler} */
+const consumeDot = (input, pos, callbacks) => {
+	const start = pos;
+	pos++;
+	if (pos === input.length) return pos;
+	const cc = input.charCodeAt(pos);
+	if (_isDigit(cc)) return consumeNumericToken(input, pos - 2, callbacks);
+	if (!callbacks.isSelector(input, pos) || !_startsIdentifier(input, pos))
+		return pos;
+	pos = _consumeIdentifier(input, pos, callbacks);
+	if (callbacks.class !== undefined) return callbacks.class(input, start, pos);
+	return pos;
+};
+
+/** @type {CharHandler} */
+const consumeNumericToken = (input, pos, callbacks) => {
+	pos = _consumeNumber(input, pos, callbacks);
+	if (pos === input.length) return pos;
+	if (_startsIdentifier(input, pos))
+		return _consumeIdentifier(input, pos, callbacks);
+	const cc = input.charCodeAt(pos);
+	if (cc === CC_PERCENTAGE) return pos + 1;
+	return pos;
+};
+
+/** @type {CharHandler} */
+const consumeOtherIdentifier = (input, pos, callbacks) => {
+	const start = pos;
+	pos = _consumeIdentifier(input, pos, callbacks);
+	if (pos !== input.length && input.charCodeAt(pos) === CC_LEFT_PARENTHESIS) {
+		pos++;
+		if (callbacks.function !== undefined) {
+			return callbacks.function(input, start, pos);
+		}
+	} else {
+		if (callbacks.identifier !== undefined) {
+			return callbacks.identifier(input, start, pos);
+		}
+	}
+	return pos;
+};
+
+/** @type {CharHandler} */
+const consumePotentialUrl = (input, pos, callbacks) => {
+	const start = pos;
+	pos = _consumeIdentifier(input, pos, callbacks);
+	const nextPos = pos + 1;
+	if (
+		pos === start + 3 &&
+		input.slice(start, nextPos).toLowerCase() === "url("
+	) {
+		pos++;
+		let cc = input.charCodeAt(pos);
+		while (_isWhiteSpace(cc)) {
+			pos++;
+			if (pos === input.length) return pos;
+			cc = input.charCodeAt(pos);
+		}
+		if (cc === CC_QUOTATION_MARK || cc === CC_APOSTROPHE) {
+			if (callbacks.function !== undefined) {
+				return callbacks.function(input, start, nextPos);
+			}
+			return nextPos;
+		} else {
+			const contentStart = pos;
+			/** @type {number} */
+			let contentEnd;
+			for (;;) {
+				if (cc === CC_REVERSE_SOLIDUS) {
+					pos++;
+					if (pos === input.length) return pos;
+					pos++;
+				} else if (_isWhiteSpace(cc)) {
+					contentEnd = pos;
+					do {
+						pos++;
+						if (pos === input.length) return pos;
+						cc = input.charCodeAt(pos);
+					} while (_isWhiteSpace(cc));
+					if (cc !== CC_RIGHT_PARENTHESIS) return pos;
+					pos++;
+					if (callbacks.url !== undefined) {
+						return callbacks.url(input, start, pos, contentStart, contentEnd);
+					}
+					return pos;
+				} else if (cc === CC_RIGHT_PARENTHESIS) {
+					contentEnd = pos;
+					pos++;
+					if (callbacks.url !== undefined) {
+						return callbacks.url(input, start, pos, contentStart, contentEnd);
+					}
+					return pos;
+				} else if (cc === CC_LEFT_PARENTHESIS) {
+					return pos;
+				} else {
+					pos++;
+				}
+				if (pos === input.length) return pos;
+				cc = input.charCodeAt(pos);
+			}
+		}
+	} else {
+		if (callbacks.identifier !== undefined) {
+			return callbacks.identifier(input, start, pos);
+		}
+		return pos;
+	}
+};
+
+/** @type {CharHandler} */
+const consumePotentialPseudo = (input, pos, callbacks) => {
+	const start = pos;
+	pos++;
+	if (!callbacks.isSelector(input, pos) || !_startsIdentifier(input, pos))
+		return pos;
+	pos = _consumeIdentifier(input, pos, callbacks);
+	let cc = input.charCodeAt(pos);
+	if (cc === CC_LEFT_PARENTHESIS) {
+		pos++;
+		if (callbacks.pseudoFunction !== undefined) {
+			return callbacks.pseudoFunction(input, start, pos);
+		}
+		return pos;
+	}
+	if (callbacks.pseudoClass !== undefined) {
+		return callbacks.pseudoClass(input, start, pos);
+	}
+	return pos;
+};
+
+/** @type {CharHandler} */
+const consumeLeftParenthesis = (input, pos, callbacks) => {
+	pos++;
+	if (callbacks.leftParenthesis !== undefined) {
+		return callbacks.leftParenthesis(input, pos - 1, pos);
+	}
+	return pos;
+};
+
+/** @type {CharHandler} */
+const consumeRightParenthesis = (input, pos, callbacks) => {
+	pos++;
+	if (callbacks.rightParenthesis !== undefined) {
+		return callbacks.rightParenthesis(input, pos - 1, pos);
+	}
+	return pos;
+};
+
+/** @type {CharHandler} */
+const consumeLeftCurlyBracket = (input, pos, callbacks) => {
+	pos++;
+	if (callbacks.leftCurlyBracket !== undefined) {
+		return callbacks.leftCurlyBracket(input, pos - 1, pos);
+	}
+	return pos;
+};
+
+/** @type {CharHandler} */
+const consumeRightCurlyBracket = (input, pos, callbacks) => {
+	pos++;
+	if (callbacks.rightCurlyBracket !== undefined) {
+		return callbacks.rightCurlyBracket(input, pos - 1, pos);
+	}
+	return pos;
+};
+
+/** @type {CharHandler} */
+const consumeSemicolon = (input, pos, callbacks) => {
+	pos++;
+	if (callbacks.semicolon !== undefined) {
+		return callbacks.semicolon(input, pos - 1, pos);
+	}
+	return pos;
+};
+
+/** @type {CharHandler} */
+const consumeComma = (input, pos, callbacks) => {
+	pos++;
+	if (callbacks.comma !== undefined) {
+		return callbacks.comma(input, pos - 1, pos);
+	}
+	return pos;
+};
+
+/** @type {CharHandler} */
+const _consumeIdentifier = (input, pos) => {
+	for (;;) {
+		const cc = input.charCodeAt(pos);
+		if (cc === CC_REVERSE_SOLIDUS) {
+			pos++;
+			if (pos === input.length) return pos;
+			pos++;
+		} else if (
+			_isIdentifierStartCode(cc) ||
+			_isDigit(cc) ||
+			cc === CC_HYPHEN_MINUS
+		) {
+			pos++;
+		} else {
+			return pos;
+		}
+	}
+};
+
+/** @type {CharHandler} */
+const _consumeNumber = (input, pos) => {
+	pos++;
+	if (pos === input.length) return pos;
+	let cc = input.charCodeAt(pos);
+	while (_isDigit(cc)) {
+		pos++;
+		if (pos === input.length) return pos;
+		cc = input.charCodeAt(pos);
+	}
+	if (cc === CC_FULL_STOP && pos + 1 !== input.length) {
+		const next = input.charCodeAt(pos + 1);
+		if (_isDigit(next)) {
+			pos += 2;
+			cc = input.charCodeAt(pos);
+			while (_isDigit(cc)) {
+				pos++;
+				if (pos === input.length) return pos;
+				cc = input.charCodeAt(pos);
+			}
+		}
+	}
+	if (cc === CC_LOWER_E || cc === CC_UPPER_E) {
+		if (pos + 1 !== input.length) {
+			const next = input.charCodeAt(pos + 2);
+			if (_isDigit(next)) {
+				pos += 2;
+			} else if (
+				(next === CC_HYPHEN_MINUS || next === CC_PLUS_SIGN) &&
+				pos + 2 !== input.length
+			) {
+				const next = input.charCodeAt(pos + 2);
+				if (_isDigit(next)) {
+					pos += 3;
+				} else {
+					return pos;
+				}
+			} else {
+				return pos;
+			}
+		}
+	} else {
+		return pos;
+	}
+	cc = input.charCodeAt(pos);
+	while (_isDigit(cc)) {
+		pos++;
+		if (pos === input.length) return pos;
+		cc = input.charCodeAt(pos);
+	}
+	return pos;
+};
+
+/** @type {CharHandler} */
+const consumeLessThan = (input, pos, callbacks) => {
+	if (input.slice(pos + 1, pos + 4) === "!--") return pos + 4;
+	return pos + 1;
+};
+
+/** @type {CharHandler} */
+const consumeAt = (input, pos, callbacks) => {
+	const start = pos;
+	pos++;
+	if (pos === input.length) return pos;
+	if (_startsIdentifier(input, pos)) {
+		pos = _consumeIdentifier(input, pos, callbacks);
+		if (callbacks.atKeyword !== undefined) {
+			pos = callbacks.atKeyword(input, start, pos);
+		}
+	}
+	return pos;
+};
+
+/** @type {CharHandler} */
+const consumeReverseSolidus = (input, pos, callbacks) => {
+	const start = pos;
+	pos++;
+	if (pos === input.length) return pos;
+	// If the input stream starts with a valid escape, reconsume the current input code point, consume an ident-like token, and return it.
+	if (
+		_isTwoCodePointsAreValidEscape(
+			input.charCodeAt(start),
+			input.charCodeAt(pos)
+		)
+	) {
+		return consumeOtherIdentifier(input, pos - 1, callbacks);
+	}
+	// Otherwise, this is a parse error. Return a <delim-token> with its value set to the current input code point.
+	return pos;
+};
+
+const CHAR_MAP = Array.from({ length: 0x80 }, (_, cc) => {
+	// https://drafts.csswg.org/css-syntax/#consume-token
+	switch (cc) {
+		// whitespace
+		case CC_LINE_FEED:
+		case CC_CARRIAGE_RETURN:
+		case CC_FORM_FEED:
+		case CC_TAB:
+		case CC_SPACE:
+			return consumeSpace;
+		// U+0022 QUOTATION MARK (")
+		case CC_QUOTATION_MARK:
+			return consumeString(cc);
+		// U+0023 NUMBER SIGN (#)
+		case CC_NUMBER_SIGN:
+			return consumeNumberSign;
+		// U+0027 APOSTROPHE (')
+		case CC_APOSTROPHE:
+			return consumeString(cc);
+		// U+0028 LEFT PARENTHESIS (()
+		case CC_LEFT_PARENTHESIS:
+			return consumeLeftParenthesis;
+		// U+0029 RIGHT PARENTHESIS ())
+		case CC_RIGHT_PARENTHESIS:
+			return consumeRightParenthesis;
+		// U+002B PLUS SIGN (+)
+		case CC_PLUS_SIGN:
+			return consumeNumericToken;
+		// U+002C COMMA (,)
+		case CC_COMMA:
+			return consumeComma;
+		// U+002D HYPHEN-MINUS (-)
+		case CC_HYPHEN_MINUS:
+			return consumeMinus;
+		// U+002E FULL STOP (.)
+		case CC_FULL_STOP:
+			return consumeDot;
+		// U+003A COLON (:)
+		case CC_COLON:
+			return consumePotentialPseudo;
+		// U+003B SEMICOLON (;)
+		case CC_SEMICOLON:
+			return consumeSemicolon;
+		// U+003C LESS-THAN SIGN (<)
+		case CC_LESS_THAN_SIGN:
+			return consumeLessThan;
+		// U+0040 COMMERCIAL AT (@)
+		case CC_AT_SIGN:
+			return consumeAt;
+		// U+005B LEFT SQUARE BRACKET ([)
+		case CC_LEFT_SQUARE:
+			return consumeDelimToken;
+		// U+005C REVERSE SOLIDUS (\)
+		case CC_REVERSE_SOLIDUS:
+			return consumeReverseSolidus;
+		// U+005D RIGHT SQUARE BRACKET (])
+		case CC_RIGHT_SQUARE:
+			return consumeDelimToken;
+		// U+007B LEFT CURLY BRACKET ({)
+		case CC_LEFT_CURLY:
+			return consumeLeftCurlyBracket;
+		// U+007D RIGHT CURLY BRACKET (})
+		case CC_RIGHT_CURLY:
+			return consumeRightCurlyBracket;
+		// Optimization
+		case CC_LOWER_U:
+		case CC_UPPER_U:
+			return consumePotentialUrl;
+		default:
+			// digit
+			if (_isDigit(cc)) return consumeNumericToken;
+			// ident-start code point
+			if (isIdentStartCodePoint(cc)) {
+				return consumeOtherIdentifier;
+			}
+			// EOF, but we don't have it
+			// anything else
+			return consumeDelimToken;
+	}
+});
+
+/**
+ * @param {string} input input css
+ * @param {CssTokenCallbacks} callbacks callbacks
+ * @returns {void}
+ */
+module.exports = (input, callbacks) => {
+	// This section describes how to consume a token from a stream of code points. It will return a single token of any type.
+	let pos = 0;
+	while (pos < input.length) {
+		// Consume comments.
+		pos = consumeComments(input, pos, callbacks);
+
+		const cc = input.charCodeAt(pos);
+
+		// Consume the next input code point.
+		if (cc < 0x80) {
+			pos = CHAR_MAP[cc](input, pos, callbacks);
+		} else {
+			pos++;
+		}
+	}
+};
+
+module.exports.isIdentStartCodePoint = isIdentStartCodePoint;
+
+/**
+ * @param {string} input input
+ * @param {number} pos position
+ * @returns {number} position after comments
+ */
+module.exports.eatComments = (input, pos) => {
+	for (;;) {
+		let originalPos = pos;
+		pos = consumeComments(input, pos, {});
+		if (originalPos === pos) {
+			break;
+		}
+	}
+
+	return pos;
+};
+
+/**
+ * @param {string} input input
+ * @param {number} pos position
+ * @returns {number} position after whitespace
+ */
+module.exports.eatWhitespace = (input, pos) => {
+	while (_isWhiteSpace(input.charCodeAt(pos))) {
+		pos++;
+	}
+
+	return pos;
+};
+
+/**
+ * @param {string} input input
+ * @param {number} pos position
+ * @returns {number} position after whitespace and comments
+ */
+module.exports.eatWhitespaceAndComments = (input, pos) => {
+	for (;;) {
+		let originalPos = pos;
+		pos = consumeComments(input, pos, {});
+		while (_isWhiteSpace(input.charCodeAt(pos))) {
+			pos++;
+		}
+		if (originalPos === pos) {
+			break;
+		}
+	}
+
+	return pos;
+};
+
+/**
+ * @param {string} input input
+ * @param {number} pos position
+ * @returns {number} position after whitespace
+ */
+module.exports.eatWhiteLine = (input, pos) => {
+	for (;;) {
+		const cc = input.charCodeAt(pos);
+		if (_isSpace(cc)) {
+			pos++;
+			continue;
+		}
+		if (_isNewLine(cc)) pos++;
+		// For `\r\n`
+		if (cc === CC_CARRIAGE_RETURN && input.charCodeAt(pos + 1) === CC_LINE_FEED)
+			pos++;
+		break;
+	}
+
+	return pos;
+};