kmx.io/prism.js/plugins/unescaped-markup/prism-unescaped-markup.js

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• Hash : 96335642
  Author :
  Date : 2021-03-21T17:22:54
  

  Plugins: Consistent Prism check (#2788)

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• plugins/unescaped-markup/prism-unescaped-markup.js

• (function () {
  
  	if (typeof Prism === 'undefined' || typeof document === 'undefined') {
  		return;
  	}
  
  	// https://developer.mozilla.org/en-US/docs/Web/API/Element/matches#Polyfill
  	if (!Element.prototype.matches) {
  		Element.prototype.matches = Element.prototype.msMatchesSelector || Element.prototype.webkitMatchesSelector;
  	}
  
  
  	Prism.plugins.UnescapedMarkup = true;
  
  	Prism.hooks.add('before-highlightall', function (env) {
  		env.selector += ', [class*="lang-"] script[type="text/plain"]'
  			+ ', [class*="language-"] script[type="text/plain"]'
  			+ ', script[type="text/plain"][class*="lang-"]'
  			+ ', script[type="text/plain"][class*="language-"]';
  	});
  
  	Prism.hooks.add('before-sanity-check', function (env) {
  		/** @type {HTMLElement} */
  		var element = env.element;
  
  		if (element.matches('script[type="text/plain"]')) {
  			// found a <script type="text/plain" ...> element
  			// we convert this element to a regular <pre><code> code block
  
  			var code = document.createElement('code');
  			var pre = document.createElement('pre');
  
  			// copy class name
  			pre.className = code.className = element.className;
  
  			// copy all "data-" attributes
  			var dataset = element.dataset;
  			Object.keys(dataset || {}).forEach(function (key) {
  				if (Object.prototype.hasOwnProperty.call(dataset, key)) {
  					pre.dataset[key] = dataset[key];
  				}
  			});
  
  			code.textContent = env.code = env.code.replace(/&lt;\/script(?:>|&gt;)/gi, '</scri' + 'pt>');
  
  			// change DOM
  			pre.appendChild(code);
  			element.parentNode.replaceChild(pre, element);
  			env.element = code;
  			return;
  		}
  
  		if (!env.code) {
  			// no code
  			var childNodes = element.childNodes;
  			if (childNodes.length === 1 && childNodes[0].nodeName == '#comment') {
  				// the only child is a comment -> use the comment's text
  				element.textContent = env.code = childNodes[0].textContent;
  			}
  		}
  	});
  }());
  

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