hexo/node_modules/prismjs/plugins/unescaped-markup/prism-unescaped-markup.js

63 lines
1.9 KiB
JavaScript

(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;
}
}
});
}());