/* **********************************************

Begin prism-core.js

********************************************** */

/// <reference lib="WebWorker"/>

var _self = (typeof window !== 'undefined')

? window // if in browser

: (

(typeof WorkerGlobalScope !== 'undefined' && self instanceof WorkerGlobalScope)

? self // if in worker

: {} // if in node js

);

/**

* Prism: Lightweight, robust, elegant syntax highlighting

*

* @license MIT <https://opensource.org/licenses/MIT>

* @author Lea Verou <https://lea.verou.me>

* @namespace

* @public

*/

var Prism = (function (_self) {

// Private helper vars

var lang = /\blang(?:uage)?-([\w-]+)\b/i;

var uniqueId = 0;

// The grammar object for plaintext

var plainTextGrammar = {};

var _ = {

/**

* By default, Prism will attempt to highlight all code elements (by calling {@link Prism.highlightAll}) on the

* current page after the page finished loading. This might be a problem if e.g. you wanted to asynchronously load

* additional languages or plugins yourself.

*

* By setting this value to `true`, Prism will not automatically highlight all code elements on the page.

*

* You obviously have to change this value before the automatic highlighting started. To do this, you can add an

* empty Prism object into the global scope before loading the Prism script like this:

*

* ```js

* window.Prism = window.Prism || {};

* Prism.manual = true;

* // add a new <script> to load Prism's script

* ```

*

* @default false

* @type {boolean}

* @memberof Prism

* @public

*/

manual: _self.Prism && _self.Prism.manual,

disableWorkerMessageHandler: _self.Prism && _self.Prism.disableWorkerMessageHandler,

/**

* A namespace for utility methods.

*

* All function in this namespace that are not explicitly marked as _public_ are for __internal use only__ and may

* change or disappear at any time.

*

* @namespace

* @memberof Prism

*/

util: {

encode: function encode(tokens) {

if (tokens instanceof Token) {

return new Token(tokens.type, encode(tokens.content), tokens.alias);

} else if (Array.isArray(tokens)) {

return tokens.map(encode);

} else {

return tokens.replace(/&/g, '&amp;').replace(/</g, '&lt;').replace(/\u00a0/g, ' ');

}

},

/**

* Returns the name of the type of the given value.

*

* @param {any} o

* @returns {string}

* @example

* type(null) === 'Null'

* type(undefined) === 'Undefined'

* type(123) === 'Number'

* type('foo') === 'String'

* type(true) === 'Boolean'

* type([1, 2]) === 'Array'

* type({}) === 'Object'

* type(String) === 'Function'

* type(/abc+/) === 'RegExp'

*/

type: function (o) {

return Object.prototype.toString.call(o).slice(8, -1);

},

/**

* Returns a unique number for the given object. Later calls will still return the same number.

*

* @param {Object} obj

* @returns {number}

*/

objId: function (obj) {

if (!obj['__id']) {

Object.defineProperty(obj, '__id', { value: ++uniqueId });

}

return obj['__id'];

},

/**

* Creates a deep clone of the given object.

*

* The main intended use of this function is to clone language definitions.

*

* @param {T} o

* @param {Record<number, any>} [visited]

* @returns {T}

* @template T

*/

clone: function deepClone(o, visited) {

visited = visited || {};

var clone; var id;

switch (_.util.type(o)) {

case 'Object':

id = _.util.objId(o);

if (visited[id]) {

return visited[id];

}

clone = /** @type {Record<string, any>} */ ({});

visited[id] = clone;

for (var key in o) {

if (o.hasOwnProperty(key)) {

clone[key] = deepClone(o[key], visited);

}

}

return /** @type {any} */ (clone);

case 'Array':

id = _.util.objId(o);

if (visited[id]) {

return visited[id];

}

clone = [];

visited[id] = clone;

(/** @type {Array} */(/** @type {any} */(o))).forEach(function (v, i) {

clone[i] = deepClone(v, visited);

});

return /** @type {any} */ (clone);

default:

return o;

}

},

/**

* Returns the Prism language of the given element set by a `language-xxxx` or `lang-xxxx` class.

*

* If no language is set for the element or the element is `null` or `undefined`, `none` will be returned.

*

* @param {Element} element

* @returns {string}

*/

getLanguage: function (element) {

while (element && !lang.test(element.className)) {

element = element.parentElement;

}

if (element) {

return (element.className.match(lang) || [, 'none'])[1].toLowerCase();

}

return 'none';

},

/**

* Returns the script element that is currently executing.

*

* This does __not__ work for line script element.

*

* @returns {HTMLScriptElement | null}

*/

currentScript: function () {

if (typeof document === 'undefined') {

return null;

}

if ('currentScript' in document && 1 < 2 /* hack to trip TS' flow analysis */) {

return /** @type {any} */ (document.currentScript);

}

// IE11 workaround

// we'll get the src of the current script by parsing IE11's error stack trace

// this will not work for inline scripts

try {

throw new Error();

} catch (err) {

// Get file src url from stack. Specifically works with the format of stack traces in IE.

// A stack will look like this:

//

// Error

// at _.util.currentScript (http://localhost/components/prism-core.js:119:5)

// at Global code (http://localhost/components/prism-core.js:606:1)

var src = (/at [^(\r\n]*\((.*):.+:.+\)$/i.exec(err.stack) || [])[1];

if (src) {

var scripts = document.getElementsByTagName('script');

for (var i in scripts) {

if (scripts[i].src == src) {

return scripts[i];

}

}

}

return null;

}

},

/**

* Returns whether a given class is active for `element`.

*

* The class can be activated if `element` or one of its ancestors has the given class and it can be deactivated

* if `element` or one of its ancestors has the negated version of the given class. The _negated version_ of the

* given class is just the given class with a `no-` prefix.

*

* Whether the class is active is determined by the closest ancestor of `element` (where `element` itself is

* closest ancestor) that has the given class or the negated version of it. If neither `element` nor any of its

* ancestors have the given class or the negated version of it, then the default activation will be returned.

*

* In the paradoxical situation where the closest ancestor contains __both__ the given class and the negated

* version of it, the class is considered active.

*

* @param {Element} element

* @param {string} className

* @param {boolean} [defaultActivation=false]

* @returns {boolean}

*/

isActive: function (element, className, defaultActivation) {

var no = 'no-' + className;

while (element) {

var classList = element.classList;

if (classList.contains(className)) {

return true;

}

if (classList.contains(no)) {

return false;

}

element = element.parentElement;

}

return !!defaultActivation;

}

},

/**

* This namespace contains all currently loaded languages and the some helper functions to create and modify languages.

*

* @namespace

* @memberof Prism

* @public

*/

languages: {

/**

* The grammar for plain, unformatted text.

*/

plain: plainTextGrammar,

plaintext: plainTextGrammar,

text: plainTextGrammar,

txt: plainTextGrammar,

/**

* Creates a deep copy of the language with the given id and appends the given tokens.

*

* If a token in `redef` also appears in the copied language, then the existing token in the copied language

* will be overwritten at its original position.

*

* ## Best practices

*

* Since the position of overwriting tokens (token in `redef` that overwrite tokens in the copied language)

* doesn't matter, they can technically be in any order. However, this can be confusing to others that trying to

* understand the language definition because, normally, the order of tokens matters in Prism grammars.

*

* Therefore, it is encouraged to order overwriting tokens according to the positions of the overwritten tokens.

* Furthermore, all non-overwriting tokens should be placed after the overwriting ones.

*

* @param {string} id The id of the language to extend. This has to be a key in `Prism.languages`.

* @param {Grammar} redef The new tokens to append.

* @returns {Grammar} The new language created.

* @public

* @example

* Prism.languages['css-with-colors'] = Prism.languages.extend('css', {

* // Prism.languages.css already has a 'comment' token, so this token will overwrite CSS' 'comment' token

* // at its original position

* 'comment': { ... },

* // CSS doesn't have a 'color' token, so this token will be appended

* 'color': /\b(?:red|green|blue)\b/

* });

*/

extend: function (id, redef) {

var lang = _.util.clone(_.languages[id]);

for (var key in redef) {

lang[key] = redef[key];

}

return lang;

},

/**

* Inserts tokens _before_ another token in a language definition or any other grammar.

*

* ## Usage

*

* This helper method makes it easy to modify existing languages. For example, the CSS language definition

* not only defines CSS highlighting for CSS documents, but also needs to define highlighting for CSS embedded

* in HTML through `<style>` elements. To do this, it needs to modify `Prism.languages.markup` and add the

* appropriate tokens. However, `Prism.languages.markup` is a regular JavaScript object literal, so if you do

* this:

*

* ```js

* Prism.languages.markup.style = {

* // token

* };

* ```

*

* then the `style` token will be added (and processed) at the end. `insertBefore` allows you to insert tokens

* before existing tokens. For the CSS example above, you would use it like this:

*

* ```js

* Prism.languages.insertBefore('markup', 'cdata', {

* 'style': {

* // token

* }

* });

* ```

*

* ## Special cases

*

* If the grammars of `inside` and `insert` have tokens with the same name, the tokens in `inside`'s grammar

* will be ignored.

*

* This behavior can be used to insert tokens after `before`:

*

* ```js

* Prism.languages.insertBefore('markup', 'comment', {

* 'comment': Prism.languages.markup.comment,

* // tokens after 'comment'

* });

* ```

*

* ## Limitations

*

* The main problem `insertBefore` has to solve is iteration order. Since ES2015, the iteration order for object

* properties is guaranteed to be the insertion order (except for integer keys) but some browsers behave

* differently when keys are deleted and re-inserted. So `insertBefore` can't be implemented by temporarily

* deleting properties which is necessary to insert at arbitrary positions.

*

* To solve this problem, `insertBefore` doesn't actually insert the given tokens into the target object.

* Instead, it will create a new object and replace all references to the target object with the new one. This

* can be done without temporarily deleting properties, so the iteration order is well-defined.

*

* However, only references that can be reached from `Prism.languages` or `insert` will be replaced. I.e. if

* you hold the target object in a variable, then the value of the variable will not change.

*

* ```js

* var oldMarkup = Prism.languages.markup;

* var newMarkup = Prism.languages.insertBefore('markup', 'comment', { ... });

*

* assert(oldMarkup !== Prism.languages.markup);

* assert(newMarkup === Prism.languages.markup);

* ```

*

* @param {string} inside The property of `root` (e.g. a language id in `Prism.languages`) that contains the

* object to be modified.

* @param {string} before The key to insert before.

* @param {Grammar} insert An object containing the key-value pairs to be inserted.

* @param {Object<string, any>} [root] The object containing `inside`, i.e. the object that contains the

* object to be modified.

*

* Defaults to `Prism.languages`.

* @returns {Grammar} The new grammar object.

* @public

*/

insertBefore: function (inside, before, insert, root) {

root = root || /** @type {any} */ (_.languages);

var grammar = root[inside];

/** @type {Grammar} */

var ret = {};

for (var token in grammar) {

if (grammar.hasOwnProperty(token)) {

if (token == before) {

for (var newToken in insert) {

if (insert.hasOwnProperty(newToken)) {

ret[newToken] = insert[newToken];

}

}

}

// Do not insert token which also occur in insert. See #1525

if (!insert.hasOwnProperty(token)) {

ret[token] = grammar[token];

}

}

}

var old = root[inside];

root[inside] = ret;

// Update references in other language definitions

_.languages.DFS(_.languages, function (key, value) {

if (value === old && key != inside) {

this[key] = ret;

}

});

return ret;

},

// Traverse a language definition with Depth First Search

DFS: function DFS(o, callback, type, visited) {

visited = visited || {};

var objId = _.util.objId;

for (var i in o) {

if (o.hasOwnProperty(i)) {

callback.call(o, i, o[i], type || i);

var property = o[i];

var propertyType = _.util.type(property);

if (propertyType === 'Object' && !visited[objId(property)]) {

visited[objId(property)] = true;

DFS(property, callback, null, visited);

} else if (propertyType === 'Array' && !visited[objId(property)]) {

visited[objId(property)] = true;

DFS(property, callback, i, visited);

}

}

}

}

},

plugins: {},

/**

* This is the most high-level function in Prism’s API.

* It fetches all the elements that have a `.language-xxxx` class and then calls {@link Prism.highlightElement} on

* each one of them.

*

* This is equivalent to `Prism.highlightAllUnder(document, async, callback)`.

*

* @param {boolean} [async=false] Same as in {@link Prism.highlightAllUnder}.

* @param {HighlightCallback} [callback] Same as in {@link Prism.highlightAllUnder}.

* @memberof Prism

* @public

*/

highlightAll: function (async, callback) {

_.highlightAllUnder(document, async, callback);

},

/**

* Fetches all the descendants of `container` that have a `.language-xxxx` class and then calls

* {@link Prism.highlightElement} on each one of them.

*

* The following hooks will be run:

* 1. `before-highlightall`

* 2. `before-all-elements-highlight`

* 3. All hooks of {@link Prism.highlightElement} for each element.

*

* @param {ParentNode} container The root element, whose descendants that have a `.language-xxxx` class will be highlighted.

* @param {boolean} [async=false] Whether each element is to be highlighted asynchronously using Web Workers.

* @param {HighlightCallback} [callback] An optional callback to be invoked on each element after its highlighting is done.

* @memberof Prism

* @public

*/

highlightAllUnder: function (container, async, callback) {

var env = {

callback: callback,

container: container,

selector: 'code[class*="language-"], [class*="language-"] code, code[class*="lang-"], [class*="lang-"] code'

};

_.hooks.run('before-highlightall', env);

env.elements = Array.prototype.slice.apply(env.container.querySelectorAll(env.selector));

_.hooks.run('before-all-elements-highlight', env);

for (var i = 0, element; (element = env.elements[i++]);) {

_.highlightElement(element, async === true, env.callback);

}

},

/**

* Highlights the code inside a single element.

*

* The following hooks will be run:

* 1. `before-sanity-check`

* 2. `before-highlight`

* 3. All hooks of {@link Prism.highlight}. These hooks will be run by an asynchronous worker if `async` is `true`.

* 4. `before-insert`

* 5. `after-highlight`

* 6. `complete`

*

* Some the above hooks will be skipped if the element doesn't contain any text or there is no grammar loaded for

* the element's language.

*

* @param {Element} element The element containing the code.

* It must have a class of `language-xxxx` to be processed, where `xxxx` is a valid language identifier.

* @param {boolean} [async=false] Whether the element is to be highlighted asynchronously using Web Workers

* to improve performance and avoid blocking the UI when highlighting very large chunks of code. This option is

* [disabled by default](https://prismjs.com/faq.html#why-is-asynchronous-highlighting-disabled-by-default).

*

* Note: All language definitions required to highlight the code must be included in the main `prism.js` file for

* asynchronous highlighting to work. You can build your own bundle on the

* [Download page](https://prismjs.com/download.html).

* @param {HighlightCallback} [callback] An optional callback to be invoked after the highlighting is done.

* Mostly useful when `async` is `true`, since in that case, the highlighting is done asynchronously.

* @memberof Prism

* @public

*/

highlightElement: function (element, async, callback) {

// Find language

var language = _.util.getLanguage(element);

var grammar = _.languages[language];

// Set language on the element, if not present

element.className = element.className.replace(lang, '').replace(/\s+/g, ' ') + ' language-' + language;

// Set language on the parent, for styling

var parent = element.parentElement;

if (parent && parent.nodeName.toLowerCase() === 'pre') {

parent.className = parent.className.replace(lang, '').replace(/\s+/g, ' ') + ' language-' + language;

}

var code = element.textContent;

var env = {

element: element,

language: language,

grammar: grammar,

code: code

};

function insertHighlightedCode(highlightedCode) {

env.highlightedCode = highlightedCode;

_.hooks.run('before-insert', env);

env.element.innerHTML = env.highlightedCode;

_.hooks.run('after-highlight', env);

_.hooks.run('complete', env);

callback && callback.call(env.element);

}

_.hooks.run('before-sanity-check', env);

// plugins may change/add the parent/element

parent = env.element.parentElement;

if (parent && parent.nodeName.toLowerCase() === 'pre' && !parent.hasAttribute('tabindex')) {

parent.setAttribute('tabindex', '0');

}

if (!env.code) {

_.hooks.run('complete', env);

callback && callback.call(env.element);

return;

}

_.hooks.run('before-highlight', env);

if (!env.grammar) {

insertHighlightedCode(_.util.encode(env.code));

return;

}

if (async && _self.Worker) {

var worker = new Worker(_.filename);

worker.onmessage = function (evt) {

insertHighlightedCode(evt.data);

};

worker.postMessage(JSON.stringify({

language: env.language,

code: env.code,

immediateClose: true

}));

} else {

insertHighlightedCode(_.highlight(env.code, env.grammar, env.language));

}

},

/**

* Low-level function, only use if you know what you’re doing. It accepts a string of text as input

* and the language definitions to use, and returns a string with the HTML produced.

*

* The following hooks will be run:

* 1. `before-tokenize`

* 2. `after-tokenize`

* 3. `wrap`: On each {@link Token}.

*

* @param {string} text A string with the code to be highlighted.

* @param {Grammar} grammar An object containing the tokens to use.

*

* Usually a language definition like `Prism.languages.markup`.

* @param {string} language The name of the language definition passed to `grammar`.

* @returns {string} The highlighted HTML.

* @memberof Prism

* @public

* @example

* Prism.highlight('var foo = true;', Prism.languages.javascript, 'javascript');

*/

highlight: function (text, grammar, language) {

var env = {

code: text,

grammar: grammar,

language: language

};

_.hooks.run('before-tokenize', env);

env.tokens = _.tokenize(env.code, env.grammar);

_.hooks.run('after-tokenize', env);

return Token.stringify(_.util.encode(env.tokens), env.language);

},

/**

* This is the heart of Prism, and the most low-level function you can use. It accepts a string of text as input

* and the language definitions to use, and returns an array with the tokenized code.

*

* When the language definition includes nested tokens, the function is called recursively on each of these tokens.

*

* This method could be useful in other contexts as well, as a very crude parser.

*

* @param {string} text A string with the code to be highlighted.

* @param {Grammar} grammar An object containing the tokens to use.

*

* Usually a language definition like `Prism.languages.markup`.

* @returns {TokenStream} An array of strings and tokens, a token stream.

* @memberof Prism

* @public

* @example

* let code = `var foo = 0;`;

* let tokens = Prism.tokenize(code, Prism.languages.javascript);

* tokens.forEach(token => {

* if (token instanceof Prism.Token && token.type === 'number') {

* console.log(`Found numeric literal: ${token.content}`);

* }

* });

*/

tokenize: function (text, grammar) {

var rest = grammar.rest;

if (rest) {

for (var token in rest) {

grammar[token] = rest[token];

}

delete grammar.rest;

}

var tokenList = new LinkedList();

addAfter(tokenList, tokenList.head, text);

matchGrammar(text, tokenList, grammar, tokenList.head, 0);

return toArray(tokenList);

},

/**

* @namespace

* @memberof Prism

* @public

*/

hooks: {

all: {},

/**

* Adds the given callback to the list of callbacks for the given hook.

*

* The callback will be invoked when the hook it is registered for is run.

* Hooks are usually directly run by a highlight function but you can also run hooks yourself.

*

* One callback function can be registered to multiple hooks and the same hook multiple times.

*

* @param {string} name The name of the hook.

* @param {HookCallback} callback The callback function which is given environment variables.

* @public

*/

add: function (name, callback) {

var hooks = _.hooks.all;

hooks[name] = hooks[name] || [];

hooks[name].push(callback);

},

/**

* Runs a hook invoking all registered callbacks with the given environment variables.

*

* Callbacks will be invoked synchronously and in the order in which they were registered.

*

* @param {string} name The name of the hook.

* @param {Object<string, any>} env The environment variables of the hook passed to all callbacks registered.

* @public

*/

run: function (name, env) {

var callbacks = _.hooks.all[name];

if (!callbacks || !callbacks.length) {

return;

}

for (var i = 0, callback; (callback = callbacks[i++]);) {

callback(env);

}

}

},

Token: Token

};

_self.Prism = _;

// Typescript note:

// The following can be used to import the Token type in JSDoc:

//

// @typedef {InstanceType<import("./prism-core")["Token"]>} Token

/**

* Creates a new token.

*

* @param {string} type See {@link Token#type type}

* @param {string | TokenStream} content See {@link Token#content content}

* @param {string|string[]} [alias] The alias(es) of the token.

* @param {string} [matchedStr=""] A copy of the full string this token was created from.

* @class

* @global

* @public

*/

function Token(type, content, alias, matchedStr) {

/**

* The type of the token.

*

* This is usually the key of a pattern in a {@link Grammar}.

*

* @type {string}

* @see GrammarToken

* @public

*/

this.type = type;

/**

* The strings or tokens contained by this token.

*

* This will be a token stream if the pattern matched also defined an `inside` grammar.

*

* @type {string | TokenStream}

* @public

*/

this.content = content;

/**

* The alias(es) of the token.

*

* @type {string|string[]}

* @see GrammarToken

* @public

*/

this.alias = alias;

// Copy of the full string this token was created from

this.length = (matchedStr || '').length | 0;

}

/**

* A token stream is an array of strings and {@link Token Token} objects.

*

* Token streams have to fulfill a few properties that are assumed by most functions (mostly internal ones) that process

* them.

*

* 1. No adjacent strings.

* 2. No empty strings.

*

* The only exception here is the token stream that only contains the empty string and nothing else.

*

* @typedef {Array<string | Token>} TokenStream

* @global

* @public

*/

/**

* Converts the given token or token stream to an HTML representation.

*

* The following hooks will be run:

* 1. `wrap`: On each {@link Token}.

*

* @param {string | Token | TokenStream} o The token or token stream to be converted.

* @param {string} language The name of current language.

* @returns {string} The HTML representation of the token or token stream.

* @memberof Token

* @static

*/

Token.stringify = function stringify(o, language) {

if (typeof o == 'string') {

return o;

}

if (Array.isArray(o)) {

var s = '';

o.forEach(function (e) {

s += stringify(e, language);

});

return s;

}

var env = {

type: o.type,

content: stringify(o.content, language),

tag: 'span',

classes: ['token', o.type],

attributes: {},

language: language

};

var aliases = o.alias;

if (aliases) {

if (Array.isArray(aliases)) {

Array.prototype.push.apply(env.classes, aliases);

} else {

env.classes.push(aliases);

}

}

_.hooks.run('wrap', env);

var attributes = '';

for (var name in env.attributes) {

attributes += ' ' + name + '="' + (env.attributes[name] || '').replace(/"/g, '&quot;') + '"';

}

return '<' + env.tag + ' class="' + env.classes.join(' ') + '"' + attributes + '>' + env.content + '</' + env.tag + '>';

};

/**

* @param {RegExp} pattern

* @param {number} pos

* @param {string} text

* @param {boolean} lookbehind

* @returns {RegExpExecArray | null}

*/

function matchPattern(pattern, pos, text, lookbehind) {

pattern.lastIndex = pos;

var match = pattern.exec(text);

if (match && lookbehind && match[1]) {

// change the match to remove the text matched by the Prism lookbehind group

var lookbehindLength = match[1].length;

match.index += lookbehindLength;

match[0] = match[0].slice(lookbehindLength);

}

return match;

}

/**

* @param {string} text

* @param {LinkedList<string | Token>} tokenList

* @param {any} grammar

* @param {LinkedListNode<string | Token>} startNode

* @param {number} startPos

* @param {RematchOptions} [rematch]

* @returns {void}

* @private

*

* @typedef RematchOptions

* @property {string} cause

* @property {number} reach

*/

function matchGrammar(text, tokenList, grammar, startNode, startPos, rematch) {

for (var token in grammar) {

if (!grammar.hasOwnProperty(token) || !grammar[token]) {

continue;

}

var patterns = grammar[token];

patterns = Array.isArray(patterns) ? patterns : [patterns];

for (var j = 0; j < patterns.length; ++j) {

if (rematch && rematch.cause == token + ',' + j) {

return;

}

var patternObj = patterns[j];

var inside = patternObj.inside;

var lookbehind = !!patternObj.lookbehind;

var greedy = !!patternObj.greedy;

var alias = patternObj.alias;

if (greedy && !patternObj.pattern.global) {

// Without the global flag, lastIndex won't work

var flags = patternObj.pattern.toString().match(/[imsuy]*$/)[0];

patternObj.pattern = RegExp(patternObj.pattern.source, flags + 'g');

}

/** @type {RegExp} */

var pattern = patternObj.pattern || patternObj;

for ( // iterate the token list and keep track of the current token/string position

var currentNode = startNode.next, pos = startPos;

currentNode !== tokenList.tail;

pos += currentNode.value.length, currentNode = currentNode.next

) {

if (rematch && pos >= rematch.reach) {

break;

}

var str = currentNode.value;

if (tokenList.length > text.length) {

// Something went terribly wrong, ABORT, ABORT!

return;

}

if (str instanceof Token) {

continue;

}

var removeCount = 1; // this is the to parameter of removeBetween

var match;

if (greedy) {

match = matchPattern(pattern, pos, text, lookbehind);

if (!match) {

break;

}

var from = match.index;

var to = match.index + match[0].length;

var p = pos;

// find the node that contains the match

p += currentNode.value.length;

while (from >= p) {

currentNode = currentNode.next;

p += currentNode.value.length;

}

// adjust pos (and p)

p -= currentNode.value.length;

pos = p;

// the current node is a Token, then the match starts inside another Token, which is invalid

if (currentNode.value instanceof Token) {

continue;

}

// find the last node which is affected by this match

for (

var k = currentNode;

k !== tokenList.tail && (p < to || typeof k.value === 'string');

k = k.next

) {

removeCount++;

p += k.value.length;

}

removeCount--;

// replace with the new match

str = text.slice(pos, p);

match.index -= pos;

} else {

match = matchPattern(pattern, 0, str, lookbehind);

if (!match) {

continue;

}

}

// eslint-disable-next-line no-redeclare

var from = match.index;

var matchStr = match[0];

var before = str.slice(0, from);

var after = str.slice(from + matchStr.length);

var reach = pos + str.length;

if (rematch && reach > rematch.reach) {

rematch.reach = reach;

}

var removeFrom = currentNode.prev;

if (before) {

removeFrom = addAfter(tokenList, removeFrom, before);

pos += before.length;

}

removeRange(tokenList, removeFrom, removeCount);

var wrapped = new Token(token, inside ? _.tokenize(matchStr, inside) : matchStr, alias, matchStr);

currentNode = addAfter(tokenList, removeFrom, wrapped);