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+/*!
+ Highlight.js v11.9.0 (git: f47103d4f1)
+ (c) 2006-2023 undefined and other contributors
+ License: BSD-3-Clause
+ */
+/* eslint-disable no-multi-assign */
+
+function deepFreeze(obj) {
+ if (obj instanceof Map) {
+ obj.clear =
+ obj.delete =
+ obj.set =
+ function () {
+ throw new Error('map is read-only');
+ };
+ } else if (obj instanceof Set) {
+ obj.add =
+ obj.clear =
+ obj.delete =
+ function () {
+ throw new Error('set is read-only');
+ };
+ }
+
+ // Freeze self
+ Object.freeze(obj);
+
+ Object.getOwnPropertyNames(obj).forEach((name) => {
+ const prop = obj[name];
+ const type = typeof prop;
+
+ // Freeze prop if it is an object or function and also not already frozen
+ if ((type === 'object' || type === 'function') && !Object.isFrozen(prop)) {
+ deepFreeze(prop);
+ }
+ });
+
+ return obj;
+}
+
+/** @typedef {import('highlight.js').CallbackResponse} CallbackResponse */
+/** @typedef {import('highlight.js').CompiledMode} CompiledMode */
+/** @implements CallbackResponse */
+
+class Response {
+ /**
+ * @param {CompiledMode} mode
+ */
+ constructor(mode) {
+ // eslint-disable-next-line no-undefined
+ if (mode.data === undefined) mode.data = {};
+
+ this.data = mode.data;
+ this.isMatchIgnored = false;
+ }
+
+ ignoreMatch() {
+ this.isMatchIgnored = true;
+ }
+}
+
+/**
+ * @param {string} value
+ * @returns {string}
+ */
+function escapeHTML(value) {
+ return value
+ .replace(/&/g, '&')
+ .replace(/</g, '&lt;')
+ .replace(/>/g, '&gt;')
+ .replace(/"/g, '&quot;')
+ .replace(/'/g, '&#x27;');
+}
+
+/**
+ * performs a shallow merge of multiple objects into one
+ *
+ * @template T
+ * @param {T} original
+ * @param {Record<string,any>[]} objects
+ * @returns {T} a single new object
+ */
+function inherit$1(original, ...objects) {
+ /** @type Record<string,any> */
+ const result = Object.create(null);
+
+ for (const key in original) {
+ result[key] = original[key];
+ }
+ objects.forEach(function(obj) {
+ for (const key in obj) {
+ result[key] = obj[key];
+ }
+ });
+ return /** @type {T} */ (result);
+}
+
+/**
+ * @typedef {object} Renderer
+ * @property {(text: string) => void} addText
+ * @property {(node: Node) => void} openNode
+ * @property {(node: Node) => void} closeNode
+ * @property {() => string} value
+ */
+
+/** @typedef {{scope?: string, language?: string, sublanguage?: boolean}} Node */
+/** @typedef {{walk: (r: Renderer) => void}} Tree */
+/** */
+
+const SPAN_CLOSE = '</span>';
+
+/**
+ * Determines if a node needs to be wrapped in <span>
+ *
+ * @param {Node} node */
+const emitsWrappingTags = (node) => {
+ // rarely we can have a sublanguage where language is undefined
+ // TODO: track down why
+ return !!node.scope;
+};
+
+/**
+ *
+ * @param {string} name
+ * @param {{prefix:string}} options
+ */
+const scopeToCSSClass = (name, { prefix }) => {
+ // sub-language
+ if (name.startsWith("language:")) {
+ return name.replace("language:", "language-");
+ }
+ // tiered scope: comment.line
+ if (name.includes(".")) {
+ const pieces = name.split(".");
+ return [
+ `${prefix}${pieces.shift()}`,
+ ...(pieces.map((x, i) => `${x}${"_".repeat(i + 1)}`))
+ ].join(" ");
+ }
+ // simple scope
+ return `${prefix}${name}`;
+};
+
+/** @type {Renderer} */
+class HTMLRenderer {
+ /**
+ * Creates a new HTMLRenderer
+ *
+ * @param {Tree} parseTree - the parse tree (must support `walk` API)
+ * @param {{classPrefix: string}} options
+ */
+ constructor(parseTree, options) {
+ this.buffer = "";
+ this.classPrefix = options.classPrefix;
+ parseTree.walk(this);
+ }
+
+ /**
+ * Adds texts to the output stream
+ *
+ * @param {string} text */
+ addText(text) {
+ this.buffer += escapeHTML(text);
+ }
+
+ /**
+ * Adds a node open to the output stream (if needed)
+ *
+ * @param {Node} node */
+ openNode(node) {
+ if (!emitsWrappingTags(node)) return;
+
+ const className = scopeToCSSClass(node.scope,
+ { prefix: this.classPrefix });
+ this.span(className);
+ }
+
+ /**
+ * Adds a node close to the output stream (if needed)
+ *
+ * @param {Node} node */
+ closeNode(node) {
+ if (!emitsWrappingTags(node)) return;
+
+ this.buffer += SPAN_CLOSE;
+ }
+
+ /**
+ * returns the accumulated buffer
+ */
+ value() {
+ return this.buffer;
+ }
+
+ // helpers
+
+ /**
+ * Builds a span element
+ *
+ * @param {string} className */
+ span(className) {
+ this.buffer += `<span class="${className}">`;
+ }
+}
+
+/** @typedef {{scope?: string, language?: string, children: Node[]} | string} Node */
+/** @typedef {{scope?: string, language?: string, children: Node[]} } DataNode */
+/** @typedef {import('highlight.js').Emitter} Emitter */
+/** */
+
+/** @returns {DataNode} */
+const newNode = (opts = {}) => {
+ /** @type DataNode */
+ const result = { children: [] };
+ Object.assign(result, opts);
+ return result;
+};
+
+class TokenTree {
+ constructor() {
+ /** @type DataNode */
+ this.rootNode = newNode();
+ this.stack = [this.rootNode];
+ }
+
+ get top() {
+ return this.stack[this.stack.length - 1];
+ }
+
+ get root() { return this.rootNode; }
+
+ /** @param {Node} node */
+ add(node) {
+ this.top.children.push(node);
+ }
+
+ /** @param {string} scope */
+ openNode(scope) {
+ /** @type Node */
+ const node = newNode({ scope });
+ this.add(node);
+ this.stack.push(node);
+ }
+
+ closeNode() {
+ if (this.stack.length > 1) {
+ return this.stack.pop();
+ }
+ // eslint-disable-next-line no-undefined
+ return undefined;
+ }
+
+ closeAllNodes() {
+ while (this.closeNode());
+ }
+
+ toJSON() {
+ return JSON.stringify(this.rootNode, null, 4);
+ }
+
+ /**
+ * @typedef { import("./html_renderer").Renderer } Renderer
+ * @param {Renderer} builder
+ */
+ walk(builder) {
+ // this does not
+ return this.constructor._walk(builder, this.rootNode);
+ // this works
+ // return TokenTree._walk(builder, this.rootNode);
+ }
+
+ /**
+ * @param {Renderer} builder
+ * @param {Node} node
+ */
+ static _walk(builder, node) {
+ if (typeof node === "string") {
+ builder.addText(node);
+ } else if (node.children) {
+ builder.openNode(node);
+ node.children.forEach((child) => this._walk(builder, child));
+ builder.closeNode(node);
+ }
+ return builder;
+ }
+
+ /**
+ * @param {Node} node
+ */
+ static _collapse(node) {
+ if (typeof node === "string") return;
+ if (!node.children) return;
+
+ if (node.children.every(el => typeof el === "string")) {
+ // node.text = node.children.join("");
+ // delete node.children;
+ node.children = [node.children.join("")];
+ } else {
+ node.children.forEach((child) => {
+ TokenTree._collapse(child);
+ });
+ }
+ }
+}
+
+/**
+ Currently this is all private API, but this is the minimal API necessary
+ that an Emitter must implement to fully support the parser.
+
+ Minimal interface:
+
+ - addText(text)
+ - __addSublanguage(emitter, subLanguageName)
+ - startScope(scope)
+ - endScope()
+ - finalize()
+ - toHTML()
+
+*/
+
+/**
+ * @implements {Emitter}
+ */
+class TokenTreeEmitter extends TokenTree {
+ /**
+ * @param {*} options
+ */
+ constructor(options) {
+ super();
+ this.options = options;
+ }
+
+ /**
+ * @param {string} text
+ */
+ addText(text) {
+ if (text === "") { return; }
+
+ this.add(text);
+ }
+
+ /** @param {string} scope */
+ startScope(scope) {
+ this.openNode(scope);
+ }
+
+ endScope() {
+ this.closeNode();
+ }
+
+ /**
+ * @param {Emitter & {root: DataNode}} emitter
+ * @param {string} name
+ */
+ __addSublanguage(emitter, name) {
+ /** @type DataNode */
+ const node = emitter.root;
+ if (name) node.scope = `language:${name}`;
+
+ this.add(node);
+ }
+
+ toHTML() {
+ const renderer = new HTMLRenderer(this, this.options);
+ return renderer.value();
+ }
+
+ finalize() {
+ this.closeAllNodes();
+ return true;
+ }
+}
+
+/**
+ * @param {string} value
+ * @returns {RegExp}
+ * */
+
+/**
+ * @param {RegExp | string } re
+ * @returns {string}
+ */
+function source(re) {
+ if (!re) return null;
+ if (typeof re === "string") return re;
+
+ return re.source;
+}
+
+/**
+ * @param {RegExp | string } re
+ * @returns {string}
+ */
+function lookahead(re) {
+ return concat('(?=', re, ')');
+}
+
+/**
+ * @param {RegExp | string } re
+ * @returns {string}
+ */
+function anyNumberOfTimes(re) {
+ return concat('(?:', re, ')*');
+}
+
+/**
+ * @param {RegExp | string } re
+ * @returns {string}
+ */
+function optional(re) {
+ return concat('(?:', re, ')?');
+}
+
+/**
+ * @param {...(RegExp | string) } args
+ * @returns {string}
+ */
+function concat(...args) {
+ const joined = args.map((x) => source(x)).join("");
+ return joined;
+}
+
+/**
+ * @param { Array<string | RegExp | Object> } args
+ * @returns {object}
+ */
+function stripOptionsFromArgs(args) {
+ const opts = args[args.length - 1];
+
+ if (typeof opts === 'object' && opts.constructor === Object) {
+ args.splice(args.length - 1, 1);
+ return opts;
+ } else {
+ return {};
+ }
+}
+
+/** @typedef { {capture?: boolean} } RegexEitherOptions */
+
+/**
+ * Any of the passed expresssions may match
+ *
+ * Creates a huge this | this | that | that match
+ * @param {(RegExp | string)[] | [...(RegExp | string)[], RegexEitherOptions]} args
+ * @returns {string}
+ */
+function either(...args) {
+ /** @type { object & {capture?: boolean} } */
+ const opts = stripOptionsFromArgs(args);
+ const joined = '('
+ + (opts.capture ? "" : "?:")
+ + args.map((x) => source(x)).join("|") + ")";
+ return joined;
+}
+
+/**
+ * @param {RegExp | string} re
+ * @returns {number}
+ */
+function countMatchGroups(re) {
+ return (new RegExp(re.toString() + '|')).exec('').length - 1;
+}
+
+/**
+ * Does lexeme start with a regular expression match at the beginning
+ * @param {RegExp} re
+ * @param {string} lexeme
+ */
+function startsWith(re, lexeme) {
+ const match = re && re.exec(lexeme);
+ return match && match.index === 0;
+}
+
+// BACKREF_RE matches an open parenthesis or backreference. To avoid
+// an incorrect parse, it additionally matches the following:
+// - [...] elements, where the meaning of parentheses and escapes change
+// - other escape sequences, so we do not misparse escape sequences as
+// interesting elements
+// - non-matching or lookahead parentheses, which do not capture. These
+// follow the '(' with a '?'.
+const BACKREF_RE = /\[(?:[^\\\]]|\\.)*\]|\(\??|\\([1-9][0-9]*)|\\./;
+
+// **INTERNAL** Not intended for outside usage
+// join logically computes regexps.join(separator), but fixes the
+// backreferences so they continue to match.
+// it also places each individual regular expression into it's own
+// match group, keeping track of the sequencing of those match groups
+// is currently an exercise for the caller. :-)
+/**
+ * @param {(string | RegExp)[]} regexps
+ * @param {{joinWith: string}} opts
+ * @returns {string}
+ */
+function _rewriteBackreferences(regexps, { joinWith }) {
+ let numCaptures = 0;
+
+ return regexps.map((regex) => {
+ numCaptures += 1;
+ const offset = numCaptures;
+ let re = source(regex);
+ let out = '';
+
+ while (re.length > 0) {
+ const match = BACKREF_RE.exec(re);
+ if (!match) {
+ out += re;
+ break;
+ }
+ out += re.substring(0, match.index);
+ re = re.substring(match.index + match[0].length);
+ if (match[0][0] === '\\' && match[1]) {
+ // Adjust the backreference.
+ out += '\\' + String(Number(match[1]) + offset);
+ } else {
+ out += match[0];
+ if (match[0] === '(') {
+ numCaptures++;
+ }
+ }
+ }
+ return out;
+ }).map(re => `(${re})`).join(joinWith);
+}
+
+/** @typedef {import('highlight.js').Mode} Mode */
+/** @typedef {import('highlight.js').ModeCallback} ModeCallback */
+
+// Common regexps
+const MATCH_NOTHING_RE = /\b\B/;
+const IDENT_RE = '[a-zA-Z]\\w*';
+const UNDERSCORE_IDENT_RE = '[a-zA-Z_]\\w*';
+const NUMBER_RE = '\\b\\d+(\\.\\d+)?';
+const C_NUMBER_RE = '(-?)(\\b0[xX][a-fA-F0-9]+|(\\b\\d+(\\.\\d*)?|\\.\\d+)([eE][-+]?\\d+)?)'; // 0x..., 0..., decimal, float
+const BINARY_NUMBER_RE = '\\b(0b[01]+)'; // 0b...
+const RE_STARTERS_RE = '!|!=|!==|%|%=|&|&&|&=|\\*|\\*=|\\+|\\+=|,|-|-=|/=|/|:|;|<<|<<=|<=|<|===|==|=|>>>=|>>=|>=|>>>|>>|>|\\?|\\[|\\{|\\(|\\^|\\^=|\\||\\|=|\\|\\||~';
+
+/**
+* @param { Partial<Mode> & {binary?: string | RegExp} } opts
+*/
+const SHEBANG = (opts = {}) => {
+ const beginShebang = /^#![ ]*\//;
+ if (opts.binary) {
+ opts.begin = concat(
+ beginShebang,
+ /.*\b/,
+ opts.binary,
+ /\b.*/);
+ }
+ return inherit$1({
+ scope: 'meta',
+ begin: beginShebang,
+ end: /$/,
+ relevance: 0,
+ /** @type {ModeCallback} */
+ "on:begin": (m, resp) => {
+ if (m.index !== 0) resp.ignoreMatch();
+ }
+ }, opts);
+};
+
+// Common modes
+const BACKSLASH_ESCAPE = {
+ begin: '\\\\[\\s\\S]', relevance: 0
+};
+const APOS_STRING_MODE = {
+ scope: 'string',
+ begin: '\'',
+ end: '\'',
+ illegal: '\\n',
+ contains: [BACKSLASH_ESCAPE]
+};
+const QUOTE_STRING_MODE = {
+ scope: 'string',
+ begin: '"',
+ end: '"',
+ illegal: '\\n',
+ contains: [BACKSLASH_ESCAPE]
+};
+const PHRASAL_WORDS_MODE = {
+ begin: /\b(a|an|the|are|I'm|isn't|don't|doesn't|won't|but|just|should|pretty|simply|enough|gonna|going|wtf|so|such|will|you|your|they|like|more)\b/
+};
+/**
+ * Creates a comment mode
+ *
+ * @param {string | RegExp} begin
+ * @param {string | RegExp} end
+ * @param {Mode | {}} [modeOptions]
+ * @returns {Partial<Mode>}
+ */
+const COMMENT = function(begin, end, modeOptions = {}) {
+ const mode = inherit$1(
+ {
+ scope: 'comment',
+ begin,
+ end,
+ contains: []
+ },
+ modeOptions
+ );
+ mode.contains.push({
+ scope: 'doctag',
+ // hack to avoid the space from being included. the space is necessary to
+ // match here to prevent the plain text rule below from gobbling up doctags
+ begin: '[ ]*(?=(TODO|FIXME|NOTE|BUG|OPTIMIZE|HACK|XXX):)',
+ end: /(TODO|FIXME|NOTE|BUG|OPTIMIZE|HACK|XXX):/,
+ excludeBegin: true,
+ relevance: 0
+ });
+ const ENGLISH_WORD = either(
+ // list of common 1 and 2 letter words in English
+ "I",
+ "a",
+ "is",
+ "so",
+ "us",
+ "to",
+ "at",
+ "if",
+ "in",
+ "it",
+ "on",
+ // note: this is not an exhaustive list of contractions, just popular ones
+ /[A-Za-z]+['](d|ve|re|ll|t|s|n)/, // contractions - can't we'd they're let's, etc
+ /[A-Za-z]+[-][a-z]+/, // `no-way`, etc.
+ /[A-Za-z][a-z]{2,}/ // allow capitalized words at beginning of sentences
+ );
+ // looking like plain text, more likely to be a comment
+ mode.contains.push(
+ {
+ // TODO: how to include ", (, ) without breaking grammars that use these for
+ // comment delimiters?
+ // begin: /[ ]+([()"]?([A-Za-z'-]{3,}|is|a|I|so|us|[tT][oO]|at|if|in|it|on)[.]?[()":]?([.][ ]|[ ]|\))){3}/
+ // ---
+
+ // this tries to find sequences of 3 english words in a row (without any
+ // "programming" type syntax) this gives us a strong signal that we've
+ // TRULY found a comment - vs perhaps scanning with the wrong language.
+ // It's possible to find something that LOOKS like the start of the
+ // comment - but then if there is no readable text - good chance it is a
+ // false match and not a comment.
+ //
+ // for a visual example please see:
+ // https://github.com/highlightjs/highlight.js/issues/2827
+
+ begin: concat(
+ /[ ]+/, // necessary to prevent us gobbling up doctags like /* @author Bob Mcgill */
+ '(',
+ ENGLISH_WORD,
+ /[.]?[:]?([.][ ]|[ ])/,
+ '){3}') // look for 3 words in a row
+ }
+ );
+ return mode;
+};
+const C_LINE_COMMENT_MODE = COMMENT('//', '$');
+const C_BLOCK_COMMENT_MODE = COMMENT('/\\*', '\\*/');
+const HASH_COMMENT_MODE = COMMENT('#', '$');
+const NUMBER_MODE = {
+ scope: 'number',
+ begin: NUMBER_RE,
+ relevance: 0
+};
+const C_NUMBER_MODE = {
+ scope: 'number',
+ begin: C_NUMBER_RE,
+ relevance: 0
+};
+const BINARY_NUMBER_MODE = {
+ scope: 'number',
+ begin: BINARY_NUMBER_RE,
+ relevance: 0
+};
+const REGEXP_MODE = {
+ scope: "regexp",
+ begin: /\/(?=[^/\n]*\/)/,
+ end: /\/[gimuy]*/,
+ contains: [
+ BACKSLASH_ESCAPE,
+ {
+ begin: /\[/,
+ end: /\]/,
+ relevance: 0,
+ contains: [BACKSLASH_ESCAPE]
+ }
+ ]
+};
+const TITLE_MODE = {
+ scope: 'title',
+ begin: IDENT_RE,
+ relevance: 0
+};
+const UNDERSCORE_TITLE_MODE = {
+ scope: 'title',
+ begin: UNDERSCORE_IDENT_RE,
+ relevance: 0
+};
+const METHOD_GUARD = {
+ // excludes method names from keyword processing
+ begin: '\\.\\s*' + UNDERSCORE_IDENT_RE,
+ relevance: 0
+};
+
+/**
+ * Adds end same as begin mechanics to a mode
+ *
+ * Your mode must include at least a single () match group as that first match
+ * group is what is used for comparison
+ * @param {Partial<Mode>} mode
+ */
+const END_SAME_AS_BEGIN = function(mode) {
+ return Object.assign(mode,
+ {
+ /** @type {ModeCallback} */
+ 'on:begin': (m, resp) => { resp.data._beginMatch = m[1]; },
+ /** @type {ModeCallback} */
+ 'on:end': (m, resp) => { if (resp.data._beginMatch !== m[1]) resp.ignoreMatch(); }
+ });
+};
+
+var MODES = /*#__PURE__*/Object.freeze({
+ __proto__: null,
+ APOS_STRING_MODE: APOS_STRING_MODE,
+ BACKSLASH_ESCAPE: BACKSLASH_ESCAPE,
+ BINARY_NUMBER_MODE: BINARY_NUMBER_MODE,
+ BINARY_NUMBER_RE: BINARY_NUMBER_RE,
+ COMMENT: COMMENT,
+ C_BLOCK_COMMENT_MODE: C_BLOCK_COMMENT_MODE,
+ C_LINE_COMMENT_MODE: C_LINE_COMMENT_MODE,
+ C_NUMBER_MODE: C_NUMBER_MODE,
+ C_NUMBER_RE: C_NUMBER_RE,
+ END_SAME_AS_BEGIN: END_SAME_AS_BEGIN,
+ HASH_COMMENT_MODE: HASH_COMMENT_MODE,
+ IDENT_RE: IDENT_RE,
+ MATCH_NOTHING_RE: MATCH_NOTHING_RE,
+ METHOD_GUARD: METHOD_GUARD,
+ NUMBER_MODE: NUMBER_MODE,
+ NUMBER_RE: NUMBER_RE,
+ PHRASAL_WORDS_MODE: PHRASAL_WORDS_MODE,
+ QUOTE_STRING_MODE: QUOTE_STRING_MODE,
+ REGEXP_MODE: REGEXP_MODE,
+ RE_STARTERS_RE: RE_STARTERS_RE,
+ SHEBANG: SHEBANG,
+ TITLE_MODE: TITLE_MODE,
+ UNDERSCORE_IDENT_RE: UNDERSCORE_IDENT_RE,
+ UNDERSCORE_TITLE_MODE: UNDERSCORE_TITLE_MODE
+});
+
+/**
+@typedef {import('highlight.js').CallbackResponse} CallbackResponse
+@typedef {import('highlight.js').CompilerExt} CompilerExt
+*/
+
+// Grammar extensions / plugins
+// See: https://github.com/highlightjs/highlight.js/issues/2833
+
+// Grammar extensions allow "syntactic sugar" to be added to the grammar modes
+// without requiring any underlying changes to the compiler internals.
+
+// `compileMatch` being the perfect small example of now allowing a grammar
+// author to write `match` when they desire to match a single expression rather
+// than being forced to use `begin`. The extension then just moves `match` into
+// `begin` when it runs. Ie, no features have been added, but we've just made
+// the experience of writing (and reading grammars) a little bit nicer.
+
+// ------
+
+// TODO: We need negative look-behind support to do this properly
+/**
+ * Skip a match if it has a preceding dot
+ *
+ * This is used for `beginKeywords` to prevent matching expressions such as
+ * `bob.keyword.do()`. The mode compiler automatically wires this up as a
+ * special _internal_ 'on:begin' callback for modes with `beginKeywords`
+ * @param {RegExpMatchArray} match
+ * @param {CallbackResponse} response
+ */
+function skipIfHasPrecedingDot(match, response) {
+ const before = match.input[match.index - 1];
+ if (before === ".") {
+ response.ignoreMatch();
+ }
+}
+
+/**
+ *
+ * @type {CompilerExt}
+ */
+function scopeClassName(mode, _parent) {
+ // eslint-disable-next-line no-undefined
+ if (mode.className !== undefined) {
+ mode.scope = mode.className;
+ delete mode.className;
+ }
+}
+
+/**
+ * `beginKeywords` syntactic sugar
+ * @type {CompilerExt}
+ */
+function beginKeywords(mode, parent) {
+ if (!parent) return;
+ if (!mode.beginKeywords) return;
+
+ // for languages with keywords that include non-word characters checking for
+ // a word boundary is not sufficient, so instead we check for a word boundary
+ // or whitespace - this does no harm in any case since our keyword engine
+ // doesn't allow spaces in keywords anyways and we still check for the boundary
+ // first
+ mode.begin = '\\b(' + mode.beginKeywords.split(' ').join('|') + ')(?!\\.)(?=\\b|\\s)';
+ mode.__beforeBegin = skipIfHasPrecedingDot;
+ mode.keywords = mode.keywords || mode.beginKeywords;
+ delete mode.beginKeywords;
+
+ // prevents double relevance, the keywords themselves provide
+ // relevance, the mode doesn't need to double it
+ // eslint-disable-next-line no-undefined
+ if (mode.relevance === undefined) mode.relevance = 0;
+}
+
+/**
+ * Allow `illegal` to contain an array of illegal values
+ * @type {CompilerExt}
+ */
+function compileIllegal(mode, _parent) {
+ if (!Array.isArray(mode.illegal)) return;
+
+ mode.illegal = either(...mode.illegal);
+}
+
+/**
+ * `match` to match a single expression for readability
+ * @type {CompilerExt}
+ */
+function compileMatch(mode, _parent) {
+ if (!mode.match) return;
+ if (mode.begin || mode.end) throw new Error("begin & end are not supported with match");
+
+ mode.begin = mode.match;
+ delete mode.match;
+}
+
+/**
+ * provides the default 1 relevance to all modes
+ * @type {CompilerExt}
+ */
+function compileRelevance(mode, _parent) {
+ // eslint-disable-next-line no-undefined
+ if (mode.relevance === undefined) mode.relevance = 1;
+}
+
+// allow beforeMatch to act as a "qualifier" for the match
+// the full match begin must be [beforeMatch][begin]
+const beforeMatchExt = (mode, parent) => {
+ if (!mode.beforeMatch) return;
+ // starts conflicts with endsParent which we need to make sure the child
+ // rule is not matched multiple times
+ if (mode.starts) throw new Error("beforeMatch cannot be used with starts");
+
+ const originalMode = Object.assign({}, mode);
+ Object.keys(mode).forEach((key) => { delete mode[key]; });
+
+ mode.keywords = originalMode.keywords;
+ mode.begin = concat(originalMode.beforeMatch, lookahead(originalMode.begin));
+ mode.starts = {
+ relevance: 0,
+ contains: [
+ Object.assign(originalMode, { endsParent: true })
+ ]
+ };
+ mode.relevance = 0;
+
+ delete originalMode.beforeMatch;
+};
+
+// keywords that should have no default relevance value
+const COMMON_KEYWORDS = [
+ 'of',
+ 'and',
+ 'for',
+ 'in',
+ 'not',
+ 'or',
+ 'if',
+ 'then',
+ 'parent', // common variable name
+ 'list', // common variable name
+ 'value' // common variable name
+];
+
+const DEFAULT_KEYWORD_SCOPE = "keyword";
+
+/**
+ * Given raw keywords from a language definition, compile them.
+ *
+ * @param {string | Record<string,string|string[]> | Array<string>} rawKeywords
+ * @param {boolean} caseInsensitive
+ */
+function compileKeywords(rawKeywords, caseInsensitive, scopeName = DEFAULT_KEYWORD_SCOPE) {
+ /** @type {import("highlight.js/private").KeywordDict} */
+ const compiledKeywords = Object.create(null);
+
+ // input can be a string of keywords, an array of keywords, or a object with
+ // named keys representing scopeName (which can then point to a string or array)
+ if (typeof rawKeywords === 'string') {
+ compileList(scopeName, rawKeywords.split(" "));
+ } else if (Array.isArray(rawKeywords)) {
+ compileList(scopeName, rawKeywords);
+ } else {
+ Object.keys(rawKeywords).forEach(function(scopeName) {
+ // collapse all our objects back into the parent object
+ Object.assign(
+ compiledKeywords,
+ compileKeywords(rawKeywords[scopeName], caseInsensitive, scopeName)
+ );
+ });
+ }
+ return compiledKeywords;
+
+ // ---
+
+ /**
+ * Compiles an individual list of keywords
+ *
+ * Ex: "for if when while|5"
+ *
+ * @param {string} scopeName
+ * @param {Array<string>} keywordList
+ */
+ function compileList(scopeName, keywordList) {
+ if (caseInsensitive) {
+ keywordList = keywordList.map(x => x.toLowerCase());
+ }
+ keywordList.forEach(function(keyword) {
+ const pair = keyword.split('|');
+ compiledKeywords[pair[0]] = [scopeName, scoreForKeyword(pair[0], pair[1])];
+ });
+ }
+}
+
+/**
+ * Returns the proper score for a given keyword
+ *
+ * Also takes into account comment keywords, which will be scored 0 UNLESS
+ * another score has been manually assigned.
+ * @param {string} keyword
+ * @param {string} [providedScore]
+ */
+function scoreForKeyword(keyword, providedScore) {
+ // manual scores always win over common keywords
+ // so you can force a score of 1 if you really insist
+ if (providedScore) {
+ return Number(providedScore);
+ }
+
+ return commonKeyword(keyword) ? 0 : 1;
+}
+
+/**
+ * Determines if a given keyword is common or not
+ *
+ * @param {string} keyword */
+function commonKeyword(keyword) {
+ return COMMON_KEYWORDS.includes(keyword.toLowerCase());
+}
+
+/*
+
+For the reasoning behind this please see:
+https://github.com/highlightjs/highlight.js/issues/2880#issuecomment-747275419
+
+*/
+
+/**
+ * @type {Record<string, boolean>}
+ */
+const seenDeprecations = {};
+
+/**
+ * @param {string} message
+ */
+const error = (message) => {
+ console.error(message);
+};
+
+/**
+ * @param {string} message
+ * @param {any} args
+ */
+const warn = (message, ...args) => {
+ console.log(`WARN: ${message}`, ...args);
+};
+
+/**
+ * @param {string} version
+ * @param {string} message
+ */
+const deprecated = (version, message) => {
+ if (seenDeprecations[`${version}/${message}`]) return;
+
+ console.log(`Deprecated as of ${version}. ${message}`);
+ seenDeprecations[`${version}/${message}`] = true;
+};
+
+/* eslint-disable no-throw-literal */
+
+/**
+@typedef {import('highlight.js').CompiledMode} CompiledMode
+*/
+
+const MultiClassError = new Error();
+
+/**
+ * Renumbers labeled scope names to account for additional inner match
+ * groups that otherwise would break everything.
+ *
+ * Lets say we 3 match scopes:
+ *
+ * { 1 => ..., 2 => ..., 3 => ... }
+ *
+ * So what we need is a clean match like this:
+ *
+ * (a)(b)(c) => [ "a", "b", "c" ]
+ *
+ * But this falls apart with inner match groups:
+ *
+ * (a)(((b)))(c) => ["a", "b", "b", "b", "c" ]
+ *
+ * Our scopes are now "out of alignment" and we're repeating `b` 3 times.
+ * What needs to happen is the numbers are remapped:
+ *
+ * { 1 => ..., 2 => ..., 5 => ... }
+ *
+ * We also need to know that the ONLY groups that should be output
+ * are 1, 2, and 5. This function handles this behavior.
+ *
+ * @param {CompiledMode} mode
+ * @param {Array<RegExp | string>} regexes
+ * @param {{key: "beginScope"|"endScope"}} opts
+ */
+function remapScopeNames(mode, regexes, { key }) {
+ let offset = 0;
+ const scopeNames = mode[key];
+ /** @type Record<number,boolean> */
+ const emit = {};
+ /** @type Record<number,string> */
+ const positions = {};
+
+ for (let i = 1; i <= regexes.length; i++) {
+ positions[i + offset] = scopeNames[i];
+ emit[i + offset] = true;
+ offset += countMatchGroups(regexes[i - 1]);
+ }
+ // we use _emit to keep track of which match groups are "top-level" to avoid double
+ // output from inside match groups
+ mode[key] = positions;
+ mode[key]._emit = emit;
+ mode[key]._multi = true;
+}
+
+/**
+ * @param {CompiledMode} mode
+ */
+function beginMultiClass(mode) {
+ if (!Array.isArray(mode.begin)) return;
+
+ if (mode.skip || mode.excludeBegin || mode.returnBegin) {
+ error("skip, excludeBegin, returnBegin not compatible with beginScope: {}");
+ throw MultiClassError;
+ }
+
+ if (typeof mode.beginScope !== "object" || mode.beginScope === null) {
+ error("beginScope must be object");
+ throw MultiClassError;
+ }
+
+ remapScopeNames(mode, mode.begin, { key: "beginScope" });
+ mode.begin = _rewriteBackreferences(mode.begin, { joinWith: "" });
+}
+
+/**
+ * @param {CompiledMode} mode
+ */
+function endMultiClass(mode) {
+ if (!Array.isArray(mode.end)) return;
+
+ if (mode.skip || mode.excludeEnd || mode.returnEnd) {
+ error("skip, excludeEnd, returnEnd not compatible with endScope: {}");
+ throw MultiClassError;
+ }
+
+ if (typeof mode.endScope !== "object" || mode.endScope === null) {
+ error("endScope must be object");
+ throw MultiClassError;
+ }
+
+ remapScopeNames(mode, mode.end, { key: "endScope" });
+ mode.end = _rewriteBackreferences(mode.end, { joinWith: "" });
+}
+
+/**
+ * this exists only to allow `scope: {}` to be used beside `match:`
+ * Otherwise `beginScope` would necessary and that would look weird
+
+ {
+ match: [ /def/, /\w+/ ]
+ scope: { 1: "keyword" , 2: "title" }
+ }
+
+ * @param {CompiledMode} mode
+ */
+function scopeSugar(mode) {
+ if (mode.scope && typeof mode.scope === "object" && mode.scope !== null) {
+ mode.beginScope = mode.scope;
+ delete mode.scope;
+ }
+}
+
+/**
+ * @param {CompiledMode} mode
+ */
+function MultiClass(mode) {
+ scopeSugar(mode);
+
+ if (typeof mode.beginScope === "string") {
+ mode.beginScope = { _wrap: mode.beginScope };
+ }
+ if (typeof mode.endScope === "string") {
+ mode.endScope = { _wrap: mode.endScope };
+ }
+
+ beginMultiClass(mode);
+ endMultiClass(mode);
+}
+
+/**
+@typedef {import('highlight.js').Mode} Mode
+@typedef {import('highlight.js').CompiledMode} CompiledMode
+@typedef {import('highlight.js').Language} Language
+@typedef {import('highlight.js').HLJSPlugin} HLJSPlugin
+@typedef {import('highlight.js').CompiledLanguage} CompiledLanguage
+*/
+
+// compilation
+
+/**
+ * Compiles a language definition result
+ *
+ * Given the raw result of a language definition (Language), compiles this so
+ * that it is ready for highlighting code.
+ * @param {Language} language
+ * @returns {CompiledLanguage}
+ */
+function compileLanguage(language) {
+ /**
+ * Builds a regex with the case sensitivity of the current language
+ *
+ * @param {RegExp | string} value
+ * @param {boolean} [global]
+ */
+ function langRe(value, global) {
+ return new RegExp(
+ source(value),
+ 'm'
+ + (language.case_insensitive ? 'i' : '')
+ + (language.unicodeRegex ? 'u' : '')
+ + (global ? 'g' : '')
+ );
+ }
+
+ /**
+ Stores multiple regular expressions and allows you to quickly search for
+ them all in a string simultaneously - returning the first match. It does
+ this by creating a huge (a|b|c) regex - each individual item wrapped with ()
+ and joined by `|` - using match groups to track position. When a match is
+ found checking which position in the array has content allows us to figure
+ out which of the original regexes / match groups triggered the match.
+
+ The match object itself (the result of `Regex.exec`) is returned but also
+ enhanced by merging in any meta-data that was registered with the regex.
+ This is how we keep track of which mode matched, and what type of rule
+ (`illegal`, `begin`, end, etc).
+ */
+ class MultiRegex {
+ constructor() {
+ this.matchIndexes = {};
+ // @ts-ignore
+ this.regexes = [];
+ this.matchAt = 1;
+ this.position = 0;
+ }
+
+ // @ts-ignore
+ addRule(re, opts) {
+ opts.position = this.position++;
+ // @ts-ignore
+ this.matchIndexes[this.matchAt] = opts;
+ this.regexes.push([opts, re]);
+ this.matchAt += countMatchGroups(re) + 1;
+ }
+
+ compile() {
+ if (this.regexes.length === 0) {
+ // avoids the need to check length every time exec is called
+ // @ts-ignore
+ this.exec = () => null;
+ }
+ const terminators = this.regexes.map(el => el[1]);
+ this.matcherRe = langRe(_rewriteBackreferences(terminators, { joinWith: '|' }), true);
+ this.lastIndex = 0;
+ }
+
+ /** @param {string} s */
+ exec(s) {
+ this.matcherRe.lastIndex = this.lastIndex;
+ const match = this.matcherRe.exec(s);
+ if (!match) { return null; }
+
+ // eslint-disable-next-line no-undefined
+ const i = match.findIndex((el, i) => i > 0 && el !== undefined);
+ // @ts-ignore
+ const matchData = this.matchIndexes[i];
+ // trim off any earlier non-relevant match groups (ie, the other regex
+ // match groups that make up the multi-matcher)
+ match.splice(0, i);
+
+ return Object.assign(match, matchData);
+ }
+ }
+
+ /*
+ Created to solve the key deficiently with MultiRegex - there is no way to
+ test for multiple matches at a single location. Why would we need to do
+ that? In the future a more dynamic engine will allow certain matches to be
+ ignored. An example: if we matched say the 3rd regex in a large group but
+ decided to ignore it - we'd need to started testing again at the 4th
+ regex... but MultiRegex itself gives us no real way to do that.
+
+ So what this class creates MultiRegexs on the fly for whatever search
+ position they are needed.
+
+ NOTE: These additional MultiRegex objects are created dynamically. For most
+ grammars most of the time we will never actually need anything more than the
+ first MultiRegex - so this shouldn't have too much overhead.
+
+ Say this is our search group, and we match regex3, but wish to ignore it.
+
+ regex1 | regex2 | regex3 | regex4 | regex5 ' ie, startAt = 0
+
+ What we need is a new MultiRegex that only includes the remaining
+ possibilities:
+
+ regex4 | regex5 ' ie, startAt = 3
+
+ This class wraps all that complexity up in a simple API... `startAt` decides
+ where in the array of expressions to start doing the matching. It
+ auto-increments, so if a match is found at position 2, then startAt will be
+ set to 3. If the end is reached startAt will return to 0.
+
+ MOST of the time the parser will be setting startAt manually to 0.
+ */
+ class ResumableMultiRegex {
+ constructor() {
+ // @ts-ignore
+ this.rules = [];
+ // @ts-ignore
+ this.multiRegexes = [];
+ this.count = 0;
+
+ this.lastIndex = 0;
+ this.regexIndex = 0;
+ }
+
+ // @ts-ignore
+ getMatcher(index) {
+ if (this.multiRegexes[index]) return this.multiRegexes[index];
+
+ const matcher = new MultiRegex();
+ this.rules.slice(index).forEach(([re, opts]) => matcher.addRule(re, opts));
+ matcher.compile();
+ this.multiRegexes[index] = matcher;
+ return matcher;
+ }
+
+ resumingScanAtSamePosition() {
+ return this.regexIndex !== 0;
+ }
+
+ considerAll() {
+ this.regexIndex = 0;
+ }
+
+ // @ts-ignore
+ addRule(re, opts) {
+ this.rules.push([re, opts]);
+ if (opts.type === "begin") this.count++;
+ }
+
+ /** @param {string} s */
+ exec(s) {
+ const m = this.getMatcher(this.regexIndex);
+ m.lastIndex = this.lastIndex;
+ let result = m.exec(s);
+
+ // The following is because we have no easy way to say "resume scanning at the
+ // existing position but also skip the current rule ONLY". What happens is
+ // all prior rules are also skipped which can result in matching the wrong
+ // thing. Example of matching "booger":
+
+ // our matcher is [string, "booger", number]
+ //
+ // ....booger....
+
+ // if "booger" is ignored then we'd really need a regex to scan from the
+ // SAME position for only: [string, number] but ignoring "booger" (if it
+ // was the first match), a simple resume would scan ahead who knows how
+ // far looking only for "number", ignoring potential string matches (or
+ // future "booger" matches that might be valid.)
+
+ // So what we do: We execute two matchers, one resuming at the same
+ // position, but the second full matcher starting at the position after:
+
+ // /--- resume first regex match here (for [number])
+ // |/---- full match here for [string, "booger", number]
+ // vv
+ // ....booger....
+
+ // Which ever results in a match first is then used. So this 3-4 step
+ // process essentially allows us to say "match at this position, excluding
+ // a prior rule that was ignored".
+ //
+ // 1. Match "booger" first, ignore. Also proves that [string] does non match.
+ // 2. Resume matching for [number]
+ // 3. Match at index + 1 for [string, "booger", number]
+ // 4. If #2 and #3 result in matches, which came first?
+ if (this.resumingScanAtSamePosition()) {
+ if (result && result.index === this.lastIndex) ; else { // use the second matcher result
+ const m2 = this.getMatcher(0);
+ m2.lastIndex = this.lastIndex + 1;
+ result = m2.exec(s);
+ }
+ }
+
+ if (result) {
+ this.regexIndex += result.position + 1;
+ if (this.regexIndex === this.count) {
+ // wrap-around to considering all matches again
+ this.considerAll();
+ }
+ }
+
+ return result;
+ }
+ }
+
+ /**
+ * Given a mode, builds a huge ResumableMultiRegex that can be used to walk
+ * the content and find matches.
+ *
+ * @param {CompiledMode} mode
+ * @returns {ResumableMultiRegex}
+ */
+ function buildModeRegex(mode) {
+ const mm = new ResumableMultiRegex();
+
+ mode.contains.forEach(term => mm.addRule(term.begin, { rule: term, type: "begin" }));
+
+ if (mode.terminatorEnd) {
+ mm.addRule(mode.terminatorEnd, { type: "end" });
+ }
+ if (mode.illegal) {
+ mm.addRule(mode.illegal, { type: "illegal" });
+ }
+
+ return mm;
+ }
+
+ /** skip vs abort vs ignore
+ *
+ * @skip - The mode is still entered and exited normally (and contains rules apply),
+ * but all content is held and added to the parent buffer rather than being
+ * output when the mode ends. Mostly used with `sublanguage` to build up
+ * a single large buffer than can be parsed by sublanguage.
+ *
+ * - The mode begin ands ends normally.
+ * - Content matched is added to the parent mode buffer.
+ * - The parser cursor is moved forward normally.
+ *
+ * @abort - A hack placeholder until we have ignore. Aborts the mode (as if it
+ * never matched) but DOES NOT continue to match subsequent `contains`
+ * modes. Abort is bad/suboptimal because it can result in modes
+ * farther down not getting applied because an earlier rule eats the
+ * content but then aborts.
+ *
+ * - The mode does not begin.
+ * - Content matched by `begin` is added to the mode buffer.
+ * - The parser cursor is moved forward accordingly.
+ *
+ * @ignore - Ignores the mode (as if it never matched) and continues to match any
+ * subsequent `contains` modes. Ignore isn't technically possible with
+ * the current parser implementation.
+ *
+ * - The mode does not begin.
+ * - Content matched by `begin` is ignored.
+ * - The parser cursor is not moved forward.
+ */
+
+ /**
+ * Compiles an individual mode
+ *
+ * This can raise an error if the mode contains certain detectable known logic
+ * issues.
+ * @param {Mode} mode
+ * @param {CompiledMode | null} [parent]
+ * @returns {CompiledMode | never}
+ */
+ function compileMode(mode, parent) {
+ const cmode = /** @type CompiledMode */ (mode);
+ if (mode.isCompiled) return cmode;
+
+ [
+ scopeClassName,
+ // do this early so compiler extensions generally don't have to worry about
+ // the distinction between match/begin
+ compileMatch,
+ MultiClass,
+ beforeMatchExt
+ ].forEach(ext => ext(mode, parent));
+
+ language.compilerExtensions.forEach(ext => ext(mode, parent));
+
+ // __beforeBegin is considered private API, internal use only
+ mode.__beforeBegin = null;
+
+ [
+ beginKeywords,
+ // do this later so compiler extensions that come earlier have access to the
+ // raw array if they wanted to perhaps manipulate it, etc.
+ compileIllegal,
+ // default to 1 relevance if not specified
+ compileRelevance
+ ].forEach(ext => ext(mode, parent));
+
+ mode.isCompiled = true;
+
+ let keywordPattern = null;
+ if (typeof mode.keywords === "object" && mode.keywords.$pattern) {
+ // we need a copy because keywords might be compiled multiple times
+ // so we can't go deleting $pattern from the original on the first
+ // pass
+ mode.keywords = Object.assign({}, mode.keywords);
+ keywordPattern = mode.keywords.$pattern;
+ delete mode.keywords.$pattern;
+ }
+ keywordPattern = keywordPattern || /\w+/;
+
+ if (mode.keywords) {
+ mode.keywords = compileKeywords(mode.keywords, language.case_insensitive);
+ }
+
+ cmode.keywordPatternRe = langRe(keywordPattern, true);
+
+ if (parent) {
+ if (!mode.begin) mode.begin = /\B|\b/;
+ cmode.beginRe = langRe(cmode.begin);
+ if (!mode.end && !mode.endsWithParent) mode.end = /\B|\b/;
+ if (mode.end) cmode.endRe = langRe(cmode.end);
+ cmode.terminatorEnd = source(cmode.end) || '';
+ if (mode.endsWithParent && parent.terminatorEnd) {
+ cmode.terminatorEnd += (mode.end ? '|' : '') + parent.terminatorEnd;
+ }
+ }
+ if (mode.illegal) cmode.illegalRe = langRe(/** @type {RegExp | string} */ (mode.illegal));
+ if (!mode.contains) mode.contains = [];
+
+ mode.contains = [].concat(...mode.contains.map(function(c) {
+ return expandOrCloneMode(c === 'self' ? mode : c);
+ }));
+ mode.contains.forEach(function(c) { compileMode(/** @type Mode */ (c), cmode); });
+
+ if (mode.starts) {
+ compileMode(mode.starts, parent);
+ }
+
+ cmode.matcher = buildModeRegex(cmode);
+ return cmode;
+ }
+
+ if (!language.compilerExtensions) language.compilerExtensions = [];
+
+ // self is not valid at the top-level
+ if (language.contains && language.contains.includes('self')) {
+ throw new Error("ERR: contains `self` is not supported at the top-level of a language. See documentation.");
+ }
+
+ // we need a null object, which inherit will guarantee
+ language.classNameAliases = inherit$1(language.classNameAliases || {});
+
+ return compileMode(/** @type Mode */ (language));
+}
+
+/**
+ * Determines if a mode has a dependency on it's parent or not
+ *
+ * If a mode does have a parent dependency then often we need to clone it if
+ * it's used in multiple places so that each copy points to the correct parent,
+ * where-as modes without a parent can often safely be re-used at the bottom of
+ * a mode chain.
+ *
+ * @param {Mode | null} mode
+ * @returns {boolean} - is there a dependency on the parent?
+ * */
+function dependencyOnParent(mode) {
+ if (!mode) return false;
+
+ return mode.endsWithParent || dependencyOnParent(mode.starts);
+}
+
+/**
+ * Expands a mode or clones it if necessary
+ *
+ * This is necessary for modes with parental dependenceis (see notes on
+ * `dependencyOnParent`) and for nodes that have `variants` - which must then be
+ * exploded into their own individual modes at compile time.
+ *
+ * @param {Mode} mode
+ * @returns {Mode | Mode[]}
+ * */
+function expandOrCloneMode(mode) {
+ if (mode.variants && !mode.cachedVariants) {
+ mode.cachedVariants = mode.variants.map(function(variant) {
+ return inherit$1(mode, { variants: null }, variant);
+ });
+ }
+
+ // EXPAND
+ // if we have variants then essentially "replace" the mode with the variants
+ // this happens in compileMode, where this function is called from
+ if (mode.cachedVariants) {
+ return mode.cachedVariants;
+ }
+
+ // CLONE
+ // if we have dependencies on parents then we need a unique
+ // instance of ourselves, so we can be reused with many
+ // different parents without issue
+ if (dependencyOnParent(mode)) {
+ return inherit$1(mode, { starts: mode.starts ? inherit$1(mode.starts) : null });
+ }
+
+ if (Object.isFrozen(mode)) {
+ return inherit$1(mode);
+ }
+
+ // no special dependency issues, just return ourselves
+ return mode;
+}
+
+var version = "11.9.0";
+
+class HTMLInjectionError extends Error {
+ constructor(reason, html) {
+ super(reason);
+ this.name = "HTMLInjectionError";
+ this.html = html;
+ }
+}
+
+/*
+Syntax highlighting with language autodetection.
+https://highlightjs.org/
+*/
+
+
+
+/**
+@typedef {import('highlight.js').Mode} Mode
+@typedef {import('highlight.js').CompiledMode} CompiledMode
+@typedef {import('highlight.js').CompiledScope} CompiledScope
+@typedef {import('highlight.js').Language} Language
+@typedef {import('highlight.js').HLJSApi} HLJSApi
+@typedef {import('highlight.js').HLJSPlugin} HLJSPlugin
+@typedef {import('highlight.js').PluginEvent} PluginEvent
+@typedef {import('highlight.js').HLJSOptions} HLJSOptions
+@typedef {import('highlight.js').LanguageFn} LanguageFn
+@typedef {import('highlight.js').HighlightedHTMLElement} HighlightedHTMLElement
+@typedef {import('highlight.js').BeforeHighlightContext} BeforeHighlightContext
+@typedef {import('highlight.js/private').MatchType} MatchType
+@typedef {import('highlight.js/private').KeywordData} KeywordData
+@typedef {import('highlight.js/private').EnhancedMatch} EnhancedMatch
+@typedef {import('highlight.js/private').AnnotatedError} AnnotatedError
+@typedef {import('highlight.js').AutoHighlightResult} AutoHighlightResult
+@typedef {import('highlight.js').HighlightOptions} HighlightOptions
+@typedef {import('highlight.js').HighlightResult} HighlightResult
+*/
+
+
+const escape = escapeHTML;
+const inherit = inherit$1;
+const NO_MATCH = Symbol("nomatch");
+const MAX_KEYWORD_HITS = 7;
+
+/**
+ * @param {any} hljs - object that is extended (legacy)
+ * @returns {HLJSApi}
+ */
+const HLJS = function(hljs) {
+ // Global internal variables used within the highlight.js library.
+ /** @type {Record<string, Language>} */
+ const languages = Object.create(null);
+ /** @type {Record<string, string>} */
+ const aliases = Object.create(null);
+ /** @type {HLJSPlugin[]} */
+ const plugins = [];
+
+ // safe/production mode - swallows more errors, tries to keep running
+ // even if a single syntax or parse hits a fatal error
+ let SAFE_MODE = true;
+ const LANGUAGE_NOT_FOUND = "Could not find the language '{}', did you forget to load/include a language module?";
+ /** @type {Language} */
+ const PLAINTEXT_LANGUAGE = { disableAutodetect: true, name: 'Plain text', contains: [] };
+
+ // Global options used when within external APIs. This is modified when
+ // calling the `hljs.configure` function.
+ /** @type HLJSOptions */
+ let options = {
+ ignoreUnescapedHTML: false,
+ throwUnescapedHTML: false,
+ noHighlightRe: /^(no-?highlight)$/i,
+ languageDetectRe: /\blang(?:uage)?-([\w-]+)\b/i,
+ classPrefix: 'hljs-',
+ cssSelector: 'pre code',
+ languages: null,
+ // beta configuration options, subject to change, welcome to discuss
+ // https://github.com/highlightjs/highlight.js/issues/1086
+ __emitter: TokenTreeEmitter
+ };
+
+ /* Utility functions */
+
+ /**
+ * Tests a language name to see if highlighting should be skipped
+ * @param {string} languageName
+ */
+ function shouldNotHighlight(languageName) {
+ return options.noHighlightRe.test(languageName);
+ }
+
+ /**
+ * @param {HighlightedHTMLElement} block - the HTML element to determine language for
+ */
+ function blockLanguage(block) {
+ let classes = block.className + ' ';
+
+ classes += block.parentNode ? block.parentNode.className : '';
+
+ // language-* takes precedence over non-prefixed class names.
+ const match = options.languageDetectRe.exec(classes);
+ if (match) {
+ const language = getLanguage(match[1]);
+ if (!language) {
+ warn(LANGUAGE_NOT_FOUND.replace("{}", match[1]));
+ warn("Falling back to no-highlight mode for this block.", block);
+ }
+ return language ? match[1] : 'no-highlight';
+ }
+
+ return classes
+ .split(/\s+/)
+ .find((_class) => shouldNotHighlight(_class) || getLanguage(_class));
+ }
+
+ /**
+ * Core highlighting function.
+ *
+ * OLD API
+ * highlight(lang, code, ignoreIllegals, continuation)
+ *
+ * NEW API
+ * highlight(code, {lang, ignoreIllegals})
+ *
+ * @param {string} codeOrLanguageName - the language to use for highlighting
+ * @param {string | HighlightOptions} optionsOrCode - the code to highlight
+ * @param {boolean} [ignoreIllegals] - whether to ignore illegal matches, default is to bail
+ *
+ * @returns {HighlightResult} Result - an object that represents the result
+ * @property {string} language - the language name
+ * @property {number} relevance - the relevance score
+ * @property {string} value - the highlighted HTML code
+ * @property {string} code - the original raw code
+ * @property {CompiledMode} top - top of the current mode stack
+ * @property {boolean} illegal - indicates whether any illegal matches were found
+ */
+ function highlight(codeOrLanguageName, optionsOrCode, ignoreIllegals) {
+ let code = "";
+ let languageName = "";
+ if (typeof optionsOrCode === "object") {
+ code = codeOrLanguageName;
+ ignoreIllegals = optionsOrCode.ignoreIllegals;
+ languageName = optionsOrCode.language;
+ } else {
+ // old API
+ deprecated("10.7.0", "highlight(lang, code, ...args) has been deprecated.");
+ deprecated("10.7.0", "Please use highlight(code, options) instead.\nhttps://github.com/highlightjs/highlight.js/issues/2277");
+ languageName = codeOrLanguageName;
+ code = optionsOrCode;
+ }
+
+ // https://github.com/highlightjs/highlight.js/issues/3149
+ // eslint-disable-next-line no-undefined
+ if (ignoreIllegals === undefined) { ignoreIllegals = true; }
+
+ /** @type {BeforeHighlightContext} */
+ const context = {
+ code,
+ language: languageName
+ };
+ // the plugin can change the desired language or the code to be highlighted
+ // just be changing the object it was passed
+ fire("before:highlight", context);
+
+ // a before plugin can usurp the result completely by providing it's own
+ // in which case we don't even need to call highlight
+ const result = context.result
+ ? context.result
+ : _highlight(context.language, context.code, ignoreIllegals);
+
+ result.code = context.code;
+ // the plugin can change anything in result to suite it
+ fire("after:highlight", result);
+
+ return result;
+ }
+
+ /**
+ * private highlight that's used internally and does not fire callbacks
+ *
+ * @param {string} languageName - the language to use for highlighting
+ * @param {string} codeToHighlight - the code to highlight
+ * @param {boolean?} [ignoreIllegals] - whether to ignore illegal matches, default is to bail
+ * @param {CompiledMode?} [continuation] - current continuation mode, if any
+ * @returns {HighlightResult} - result of the highlight operation
+ */
+ function _highlight(languageName, codeToHighlight, ignoreIllegals, continuation) {
+ const keywordHits = Object.create(null);
+
+ /**
+ * Return keyword data if a match is a keyword
+ * @param {CompiledMode} mode - current mode
+ * @param {string} matchText - the textual match
+ * @returns {KeywordData | false}
+ */
+ function keywordData(mode, matchText) {
+ return mode.keywords[matchText];
+ }
+
+ function processKeywords() {
+ if (!top.keywords) {
+ emitter.addText(modeBuffer);
+ return;
+ }
+
+ let lastIndex = 0;
+ top.keywordPatternRe.lastIndex = 0;
+ let match = top.keywordPatternRe.exec(modeBuffer);
+ let buf = "";
+
+ while (match) {
+ buf += modeBuffer.substring(lastIndex, match.index);
+ const word = language.case_insensitive ? match[0].toLowerCase() : match[0];
+ const data = keywordData(top, word);
+ if (data) {
+ const [kind, keywordRelevance] = data;
+ emitter.addText(buf);
+ buf = "";
+
+ keywordHits[word] = (keywordHits[word] || 0) + 1;
+ if (keywordHits[word] <= MAX_KEYWORD_HITS) relevance += keywordRelevance;
+ if (kind.startsWith("_")) {
+ // _ implied for relevance only, do not highlight
+ // by applying a class name
+ buf += match[0];
+ } else {
+ const cssClass = language.classNameAliases[kind] || kind;
+ emitKeyword(match[0], cssClass);
+ }
+ } else {
+ buf += match[0];
+ }
+ lastIndex = top.keywordPatternRe.lastIndex;
+ match = top.keywordPatternRe.exec(modeBuffer);
+ }
+ buf += modeBuffer.substring(lastIndex);
+ emitter.addText(buf);
+ }
+
+ function processSubLanguage() {
+ if (modeBuffer === "") return;
+ /** @type HighlightResult */
+ let result = null;
+
+ if (typeof top.subLanguage === 'string') {
+ if (!languages[top.subLanguage]) {
+ emitter.addText(modeBuffer);
+ return;
+ }
+ result = _highlight(top.subLanguage, modeBuffer, true, continuations[top.subLanguage]);
+ continuations[top.subLanguage] = /** @type {CompiledMode} */ (result._top);
+ } else {
+ result = highlightAuto(modeBuffer, top.subLanguage.length ? top.subLanguage : null);
+ }
+
+ // Counting embedded language score towards the host language may be disabled
+ // with zeroing the containing mode relevance. Use case in point is Markdown that
+ // allows XML everywhere and makes every XML snippet to have a much larger Markdown
+ // score.
+ if (top.relevance > 0) {
+ relevance += result.relevance;
+ }
+ emitter.__addSublanguage(result._emitter, result.language);
+ }
+
+ function processBuffer() {
+ if (top.subLanguage != null) {
+ processSubLanguage();
+ } else {
+ processKeywords();
+ }
+ modeBuffer = '';
+ }
+
+ /**
+ * @param {string} text
+ * @param {string} scope
+ */
+ function emitKeyword(keyword, scope) {
+ if (keyword === "") return;
+
+ emitter.startScope(scope);
+ emitter.addText(keyword);
+ emitter.endScope();
+ }
+
+ /**
+ * @param {CompiledScope} scope
+ * @param {RegExpMatchArray} match
+ */
+ function emitMultiClass(scope, match) {
+ let i = 1;
+ const max = match.length - 1;
+ while (i <= max) {
+ if (!scope._emit[i]) { i++; continue; }
+ const klass = language.classNameAliases[scope[i]] || scope[i];
+ const text = match[i];
+ if (klass) {
+ emitKeyword(text, klass);
+ } else {
+ modeBuffer = text;
+ processKeywords();
+ modeBuffer = "";
+ }
+ i++;
+ }
+ }
+
+ /**
+ * @param {CompiledMode} mode - new mode to start
+ * @param {RegExpMatchArray} match
+ */
+ function startNewMode(mode, match) {
+ if (mode.scope && typeof mode.scope === "string") {
+ emitter.openNode(language.classNameAliases[mode.scope] || mode.scope);
+ }
+ if (mode.beginScope) {
+ // beginScope just wraps the begin match itself in a scope
+ if (mode.beginScope._wrap) {
+ emitKeyword(modeBuffer, language.classNameAliases[mode.beginScope._wrap] || mode.beginScope._wrap);
+ modeBuffer = "";
+ } else if (mode.beginScope._multi) {
+ // at this point modeBuffer should just be the match
+ emitMultiClass(mode.beginScope, match);
+ modeBuffer = "";
+ }
+ }
+
+ top = Object.create(mode, { parent: { value: top } });
+ return top;
+ }
+
+ /**
+ * @param {CompiledMode } mode - the mode to potentially end
+ * @param {RegExpMatchArray} match - the latest match
+ * @param {string} matchPlusRemainder - match plus remainder of content
+ * @returns {CompiledMode | void} - the next mode, or if void continue on in current mode
+ */
+ function endOfMode(mode, match, matchPlusRemainder) {
+ let matched = startsWith(mode.endRe, matchPlusRemainder);
+
+ if (matched) {
+ if (mode["on:end"]) {
+ const resp = new Response(mode);
+ mode["on:end"](match, resp);
+ if (resp.isMatchIgnored) matched = false;
+ }
+
+ if (matched) {
+ while (mode.endsParent && mode.parent) {
+ mode = mode.parent;
+ }
+ return mode;
+ }
+ }
+ // even if on:end fires an `ignore` it's still possible
+ // that we might trigger the end node because of a parent mode
+ if (mode.endsWithParent) {
+ return endOfMode(mode.parent, match, matchPlusRemainder);
+ }
+ }
+
+ /**
+ * Handle matching but then ignoring a sequence of text
+ *
+ * @param {string} lexeme - string containing full match text
+ */
+ function doIgnore(lexeme) {
+ if (top.matcher.regexIndex === 0) {
+ // no more regexes to potentially match here, so we move the cursor forward one
+ // space
+ modeBuffer += lexeme[0];
+ return 1;
+ } else {
+ // no need to move the cursor, we still have additional regexes to try and
+ // match at this very spot
+ resumeScanAtSamePosition = true;
+ return 0;
+ }
+ }
+
+ /**
+ * Handle the start of a new potential mode match
+ *
+ * @param {EnhancedMatch} match - the current match
+ * @returns {number} how far to advance the parse cursor
+ */
+ function doBeginMatch(match) {
+ const lexeme = match[0];
+ const newMode = match.rule;
+
+ const resp = new Response(newMode);
+ // first internal before callbacks, then the public ones
+ const beforeCallbacks = [newMode.__beforeBegin, newMode["on:begin"]];
+ for (const cb of beforeCallbacks) {
+ if (!cb) continue;
+ cb(match, resp);
+ if (resp.isMatchIgnored) return doIgnore(lexeme);
+ }
+
+ if (newMode.skip) {
+ modeBuffer += lexeme;
+ } else {
+ if (newMode.excludeBegin) {
+ modeBuffer += lexeme;
+ }
+ processBuffer();
+ if (!newMode.returnBegin && !newMode.excludeBegin) {
+ modeBuffer = lexeme;
+ }
+ }
+ startNewMode(newMode, match);
+ return newMode.returnBegin ? 0 : lexeme.length;
+ }
+
+ /**
+ * Handle the potential end of mode
+ *
+ * @param {RegExpMatchArray} match - the current match
+ */
+ function doEndMatch(match) {
+ const lexeme = match[0];
+ const matchPlusRemainder = codeToHighlight.substring(match.index);
+
+ const endMode = endOfMode(top, match, matchPlusRemainder);
+ if (!endMode) { return NO_MATCH; }
+
+ const origin = top;
+ if (top.endScope && top.endScope._wrap) {
+ processBuffer();
+ emitKeyword(lexeme, top.endScope._wrap);
+ } else if (top.endScope && top.endScope._multi) {
+ processBuffer();
+ emitMultiClass(top.endScope, match);
+ } else if (origin.skip) {
+ modeBuffer += lexeme;
+ } else {
+ if (!(origin.returnEnd || origin.excludeEnd)) {
+ modeBuffer += lexeme;
+ }
+ processBuffer();
+ if (origin.excludeEnd) {
+ modeBuffer = lexeme;
+ }
+ }
+ do {
+ if (top.scope) {
+ emitter.closeNode();
+ }
+ if (!top.skip && !top.subLanguage) {
+ relevance += top.relevance;
+ }
+ top = top.parent;
+ } while (top !== endMode.parent);
+ if (endMode.starts) {
+ startNewMode(endMode.starts, match);
+ }
+ return origin.returnEnd ? 0 : lexeme.length;
+ }
+
+ function processContinuations() {
+ const list = [];
+ for (let current = top; current !== language; current = current.parent) {
+ if (current.scope) {
+ list.unshift(current.scope);
+ }
+ }
+ list.forEach(item => emitter.openNode(item));
+ }
+
+ /** @type {{type?: MatchType, index?: number, rule?: Mode}}} */
+ let lastMatch = {};
+
+ /**
+ * Process an individual match
+ *
+ * @param {string} textBeforeMatch - text preceding the match (since the last match)
+ * @param {EnhancedMatch} [match] - the match itself
+ */
+ function processLexeme(textBeforeMatch, match) {
+ const lexeme = match && match[0];
+
+ // add non-matched text to the current mode buffer
+ modeBuffer += textBeforeMatch;
+
+ if (lexeme == null) {
+ processBuffer();
+ return 0;
+ }
+
+ // we've found a 0 width match and we're stuck, so we need to advance
+ // this happens when we have badly behaved rules that have optional matchers to the degree that
+ // sometimes they can end up matching nothing at all
+ // Ref: https://github.com/highlightjs/highlight.js/issues/2140
+ if (lastMatch.type === "begin" && match.type === "end" && lastMatch.index === match.index && lexeme === "") {
+ // spit the "skipped" character that our regex choked on back into the output sequence
+ modeBuffer += codeToHighlight.slice(match.index, match.index + 1);
+ if (!SAFE_MODE) {
+ /** @type {AnnotatedError} */
+ const err = new Error(`0 width match regex (${languageName})`);
+ err.languageName = languageName;
+ err.badRule = lastMatch.rule;
+ throw err;
+ }
+ return 1;
+ }
+ lastMatch = match;
+
+ if (match.type === "begin") {
+ return doBeginMatch(match);
+ } else if (match.type === "illegal" && !ignoreIllegals) {
+ // illegal match, we do not continue processing
+ /** @type {AnnotatedError} */
+ const err = new Error('Illegal lexeme "' + lexeme + '" for mode "' + (top.scope || '<unnamed>') + '"');
+ err.mode = top;
+ throw err;
+ } else if (match.type === "end") {
+ const processed = doEndMatch(match);
+ if (processed !== NO_MATCH) {
+ return processed;
+ }
+ }
+
+ // edge case for when illegal matches $ (end of line) which is technically
+ // a 0 width match but not a begin/end match so it's not caught by the
+ // first handler (when ignoreIllegals is true)
+ if (match.type === "illegal" && lexeme === "") {
+ // advance so we aren't stuck in an infinite loop
+ return 1;
+ }
+
+ // infinite loops are BAD, this is a last ditch catch all. if we have a
+ // decent number of iterations yet our index (cursor position in our
+ // parsing) still 3x behind our index then something is very wrong
+ // so we bail
+ if (iterations > 100000 && iterations > match.index * 3) {
+ const err = new Error('potential infinite loop, way more iterations than matches');
+ throw err;
+ }
+
+ /*
+ Why might be find ourselves here? An potential end match that was
+ triggered but could not be completed. IE, `doEndMatch` returned NO_MATCH.
+ (this could be because a callback requests the match be ignored, etc)
+
+ This causes no real harm other than stopping a few times too many.
+ */
+
+ modeBuffer += lexeme;
+ return lexeme.length;
+ }
+
+ const language = getLanguage(languageName);
+ if (!language) {
+ error(LANGUAGE_NOT_FOUND.replace("{}", languageName));
+ throw new Error('Unknown language: "' + languageName + '"');
+ }
+
+ const md = compileLanguage(language);
+ let result = '';
+ /** @type {CompiledMode} */
+ let top = continuation || md;
+ /** @type Record<string,CompiledMode> */
+ const continuations = {}; // keep continuations for sub-languages
+ const emitter = new options.__emitter(options);
+ processContinuations();
+ let modeBuffer = '';
+ let relevance = 0;
+ let index = 0;
+ let iterations = 0;
+ let resumeScanAtSamePosition = false;
+
+ try {
+ if (!language.__emitTokens) {
+ top.matcher.considerAll();
+
+ for (;;) {
+ iterations++;
+ if (resumeScanAtSamePosition) {
+ // only regexes not matched previously will now be
+ // considered for a potential match
+ resumeScanAtSamePosition = false;
+ } else {
+ top.matcher.considerAll();
+ }
+ top.matcher.lastIndex = index;
+
+ const match = top.matcher.exec(codeToHighlight);
+ // console.log("match", match[0], match.rule && match.rule.begin)
+
+ if (!match) break;
+
+ const beforeMatch = codeToHighlight.substring(index, match.index);
+ const processedCount = processLexeme(beforeMatch, match);
+ index = match.index + processedCount;
+ }
+ processLexeme(codeToHighlight.substring(index));
+ } else {
+ language.__emitTokens(codeToHighlight, emitter);
+ }
+
+ emitter.finalize();
+ result = emitter.toHTML();
+
+ return {
+ language: languageName,
+ value: result,
+ relevance,
+ illegal: false,
+ _emitter: emitter,
+ _top: top
+ };
+ } catch (err) {
+ if (err.message && err.message.includes('Illegal')) {
+ return {
+ language: languageName,
+ value: escape(codeToHighlight),
+ illegal: true,
+ relevance: 0,
+ _illegalBy: {
+ message: err.message,
+ index,
+ context: codeToHighlight.slice(index - 100, index + 100),
+ mode: err.mode,
+ resultSoFar: result
+ },
+ _emitter: emitter
+ };
+ } else if (SAFE_MODE) {
+ return {
+ language: languageName,
+ value: escape(codeToHighlight),
+ illegal: false,
+ relevance: 0,
+ errorRaised: err,
+ _emitter: emitter,
+ _top: top
+ };
+ } else {
+ throw err;
+ }
+ }
+ }
+
+ /**
+ * returns a valid highlight result, without actually doing any actual work,
+ * auto highlight starts with this and it's possible for small snippets that
+ * auto-detection may not find a better match
+ * @param {string} code
+ * @returns {HighlightResult}
+ */
+ function justTextHighlightResult(code) {
+ const result = {
+ value: escape(code),
+ illegal: false,
+ relevance: 0,
+ _top: PLAINTEXT_LANGUAGE,
+ _emitter: new options.__emitter(options)
+ };
+ result._emitter.addText(code);
+ return result;
+ }
+
+ /**
+ Highlighting with language detection. Accepts a string with the code to
+ highlight. Returns an object with the following properties:
+
+ - language (detected language)
+ - relevance (int)
+ - value (an HTML string with highlighting markup)
+ - secondBest (object with the same structure for second-best heuristically
+ detected language, may be absent)
+
+ @param {string} code
+ @param {Array<string>} [languageSubset]
+ @returns {AutoHighlightResult}
+ */
+ function highlightAuto(code, languageSubset) {
+ languageSubset = languageSubset || options.languages || Object.keys(languages);
+ const plaintext = justTextHighlightResult(code);
+
+ const results = languageSubset.filter(getLanguage).filter(autoDetection).map(name =>
+ _highlight(name, code, false)
+ );
+ results.unshift(plaintext); // plaintext is always an option
+
+ const sorted = results.sort((a, b) => {
+ // sort base on relevance
+ if (a.relevance !== b.relevance) return b.relevance - a.relevance;
+
+ // always award the tie to the base language
+ // ie if C++ and Arduino are tied, it's more likely to be C++
+ if (a.language && b.language) {
+ if (getLanguage(a.language).supersetOf === b.language) {
+ return 1;
+ } else if (getLanguage(b.language).supersetOf === a.language) {
+ return -1;
+ }
+ }
+
+ // otherwise say they are equal, which has the effect of sorting on
+ // relevance while preserving the original ordering - which is how ties
+ // have historically been settled, ie the language that comes first always
+ // wins in the case of a tie
+ return 0;
+ });
+
+ const [best, secondBest] = sorted;
+
+ /** @type {AutoHighlightResult} */
+ const result = best;
+ result.secondBest = secondBest;
+
+ return result;
+ }
+
+ /**
+ * Builds new class name for block given the language name
+ *
+ * @param {HTMLElement} element
+ * @param {string} [currentLang]
+ * @param {string} [resultLang]
+ */
+ function updateClassName(element, currentLang, resultLang) {
+ const language = (currentLang && aliases[currentLang]) || resultLang;
+
+ element.classList.add("hljs");
+ element.classList.add(`language-${language}`);
+ }
+
+ /**
+ * Applies highlighting to a DOM node containing code.
+ *
+ * @param {HighlightedHTMLElement} element - the HTML element to highlight
+ */
+ function highlightElement(element) {
+ /** @type HTMLElement */
+ let node = null;
+ const language = blockLanguage(element);
+
+ if (shouldNotHighlight(language)) return;
+
+ fire("before:highlightElement",
+ { el: element, language });
+
+ if (element.dataset.highlighted) {
+ console.log("Element previously highlighted. To highlight again, first unset `dataset.highlighted`.", element);
+ return;
+ }
+
+ // we should be all text, no child nodes (unescaped HTML) - this is possibly
+ // an HTML injection attack - it's likely too late if this is already in
+ // production (the code has likely already done its damage by the time
+ // we're seeing it)... but we yell loudly about this so that hopefully it's
+ // more likely to be caught in development before making it to production
+ if (element.children.length > 0) {
+ if (!options.ignoreUnescapedHTML) {
+ console.warn("One of your code blocks includes unescaped HTML. This is a potentially serious security risk.");
+ console.warn("https://github.com/highlightjs/highlight.js/wiki/security");
+ console.warn("The element with unescaped HTML:");
+ console.warn(element);
+ }
+ if (options.throwUnescapedHTML) {
+ const err = new HTMLInjectionError(
+ "One of your code blocks includes unescaped HTML.",
+ element.innerHTML
+ );
+ throw err;
+ }
+ }
+
+ node = element;
+ const text = node.textContent;
+ const result = language ? highlight(text, { language, ignoreIllegals: true }) : highlightAuto(text);
+
+ element.innerHTML = result.value;
+ element.dataset.highlighted = "yes";
+ updateClassName(element, language, result.language);
+ element.result = {
+ language: result.language,
+ // TODO: remove with version 11.0
+ re: result.relevance,
+ relevance: result.relevance
+ };
+ if (result.secondBest) {
+ element.secondBest = {
+ language: result.secondBest.language,
+ relevance: result.secondBest.relevance
+ };
+ }
+
+ fire("after:highlightElement", { el: element, result, text });
+ }
+
+ /**
+ * Updates highlight.js global options with the passed options
+ *
+ * @param {Partial<HLJSOptions>} userOptions
+ */
+ function configure(userOptions) {
+ options = inherit(options, userOptions);
+ }
+
+ // TODO: remove v12, deprecated
+ const initHighlighting = () => {
+ highlightAll();
+ deprecated("10.6.0", "initHighlighting() deprecated. Use highlightAll() now.");
+ };
+
+ // TODO: remove v12, deprecated
+ function initHighlightingOnLoad() {
+ highlightAll();
+ deprecated("10.6.0", "initHighlightingOnLoad() deprecated. Use highlightAll() now.");
+ }
+
+ let wantsHighlight = false;
+
+ /**
+ * auto-highlights all pre>code elements on the page
+ */
+ function highlightAll() {
+ // if we are called too early in the loading process
+ if (document.readyState === "loading") {
+ wantsHighlight = true;
+ return;
+ }
+
+ const blocks = document.querySelectorAll(options.cssSelector);
+ blocks.forEach(highlightElement);
+ }
+
+ function boot() {
+ // if a highlight was requested before DOM was loaded, do now
+ if (wantsHighlight) highlightAll();
+ }
+
+ // make sure we are in the browser environment
+ if (typeof window !== 'undefined' && window.addEventListener) {
+ window.addEventListener('DOMContentLoaded', boot, false);
+ }
+
+ /**
+ * Register a language grammar module
+ *
+ * @param {string} languageName
+ * @param {LanguageFn} languageDefinition
+ */
+ function registerLanguage(languageName, languageDefinition) {
+ let lang = null;
+ try {
+ lang = languageDefinition(hljs);
+ } catch (error$1) {
+ error("Language definition for '{}' could not be registered.".replace("{}", languageName));
+ // hard or soft error
+ if (!SAFE_MODE) { throw error$1; } else { error(error$1); }
+ // languages that have serious errors are replaced with essentially a
+ // "plaintext" stand-in so that the code blocks will still get normal
+ // css classes applied to them - and one bad language won't break the
+ // entire highlighter
+ lang = PLAINTEXT_LANGUAGE;
+ }
+ // give it a temporary name if it doesn't have one in the meta-data
+ if (!lang.name) lang.name = languageName;
+ languages[languageName] = lang;
+ lang.rawDefinition = languageDefinition.bind(null, hljs);
+
+ if (lang.aliases) {
+ registerAliases(lang.aliases, { languageName });
+ }
+ }
+
+ /**
+ * Remove a language grammar module
+ *
+ * @param {string} languageName
+ */
+ function unregisterLanguage(languageName) {
+ delete languages[languageName];
+ for (const alias of Object.keys(aliases)) {
+ if (aliases[alias] === languageName) {
+ delete aliases[alias];
+ }
+ }
+ }
+
+ /**
+ * @returns {string[]} List of language internal names
+ */
+ function listLanguages() {
+ return Object.keys(languages);
+ }
+
+ /**
+ * @param {string} name - name of the language to retrieve
+ * @returns {Language | undefined}
+ */
+ function getLanguage(name) {
+ name = (name || '').toLowerCase();
+ return languages[name] || languages[aliases[name]];
+ }
+
+ /**
+ *
+ * @param {string|string[]} aliasList - single alias or list of aliases
+ * @param {{languageName: string}} opts
+ */
+ function registerAliases(aliasList, { languageName }) {
+ if (typeof aliasList === 'string') {
+ aliasList = [aliasList];
+ }
+ aliasList.forEach(alias => { aliases[alias.toLowerCase()] = languageName; });
+ }
+
+ /**
+ * Determines if a given language has auto-detection enabled
+ * @param {string} name - name of the language
+ */
+ function autoDetection(name) {
+ const lang = getLanguage(name);
+ return lang && !lang.disableAutodetect;
+ }
+
+ /**
+ * Upgrades the old highlightBlock plugins to the new
+ * highlightElement API
+ * @param {HLJSPlugin} plugin
+ */
+ function upgradePluginAPI(plugin) {
+ // TODO: remove with v12
+ if (plugin["before:highlightBlock"] && !plugin["before:highlightElement"]) {
+ plugin["before:highlightElement"] = (data) => {
+ plugin["before:highlightBlock"](
+ Object.assign({ block: data.el }, data)
+ );
+ };
+ }
+ if (plugin["after:highlightBlock"] && !plugin["after:highlightElement"]) {
+ plugin["after:highlightElement"] = (data) => {
+ plugin["after:highlightBlock"](
+ Object.assign({ block: data.el }, data)
+ );
+ };
+ }
+ }
+
+ /**
+ * @param {HLJSPlugin} plugin
+ */
+ function addPlugin(plugin) {
+ upgradePluginAPI(plugin);
+ plugins.push(plugin);
+ }
+
+ /**
+ * @param {HLJSPlugin} plugin
+ */
+ function removePlugin(plugin) {
+ const index = plugins.indexOf(plugin);
+ if (index !== -1) {
+ plugins.splice(index, 1);
+ }
+ }
+
+ /**
+ *
+ * @param {PluginEvent} event
+ * @param {any} args
+ */
+ function fire(event, args) {
+ const cb = event;
+ plugins.forEach(function(plugin) {
+ if (plugin[cb]) {
+ plugin[cb](args);
+ }
+ });
+ }
+
+ /**
+ * DEPRECATED
+ * @param {HighlightedHTMLElement} el
+ */
+ function deprecateHighlightBlock(el) {
+ deprecated("10.7.0", "highlightBlock will be removed entirely in v12.0");
+ deprecated("10.7.0", "Please use highlightElement now.");
+
+ return highlightElement(el);
+ }
+
+ /* Interface definition */
+ Object.assign(hljs, {
+ highlight,
+ highlightAuto,
+ highlightAll,
+ highlightElement,
+ // TODO: Remove with v12 API
+ highlightBlock: deprecateHighlightBlock,
+ configure,
+ initHighlighting,
+ initHighlightingOnLoad,
+ registerLanguage,
+ unregisterLanguage,
+ listLanguages,
+ getLanguage,
+ registerAliases,
+ autoDetection,
+ inherit,
+ addPlugin,
+ removePlugin
+ });
+
+ hljs.debugMode = function() { SAFE_MODE = false; };
+ hljs.safeMode = function() { SAFE_MODE = true; };
+ hljs.versionString = version;
+
+ hljs.regex = {
+ concat: concat,
+ lookahead: lookahead,
+ either: either,
+ optional: optional,
+ anyNumberOfTimes: anyNumberOfTimes
+ };
+
+ for (const key in MODES) {
+ // @ts-ignore
+ if (typeof MODES[key] === "object") {
+ // @ts-ignore
+ deepFreeze(MODES[key]);
+ }
+ }
+
+ // merge all the modes/regexes into our main object
+ Object.assign(hljs, MODES);
+
+ return hljs;
+};
+
+// Other names for the variable may break build script
+const highlight = HLJS({});
+
+// returns a new instance of the highlighter to be used for extensions
+// check https://github.com/wooorm/lowlight/issues/47
+highlight.newInstance = () => HLJS({});
+
+export { highlight as default };
generated by cgit v1.2.3-54-g00ecf (git 2.39.0) at 2024-09-19 21:42:42 +0000