aee7ef0dc9
Highlight.js changed their default branch from master to main. This switches to the @highlightjs/cdn-assets package, thus sidestepping the problem. It's a slightly cleaner integration though (no need to build locally anymore).
59 lines
1.2 KiB
JavaScript
59 lines
1.2 KiB
JavaScript
import deprecated from "discourse-common/lib/deprecated";
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import loadScript from "discourse/lib/load-script";
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/*global hljs:true */
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let _moreLanguages = [];
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export default function highlightSyntax(elem, siteSettings, session) {
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if (!elem) {
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return;
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}
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const selector = siteSettings.autohighlight_all_code
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? "pre code"
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: "pre code[class]";
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const path = session.highlightJsPath;
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if (elem instanceof jQuery) {
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deprecated(
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"highlightSyntax now takes a DOM node instead of a jQuery object.",
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{
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since: "2.6.0",
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dropFrom: "2.7.0",
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}
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);
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elem = elem[0];
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}
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if (!path) {
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return;
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}
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return loadScript(path).then(() => {
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customHighlightJSLanguages();
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elem.querySelectorAll(selector).forEach((e) => {
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// Large code blocks can cause crashes or slowdowns
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if (e.innerHTML.length > 30000) {
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return;
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}
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e.classList.remove("lang-auto");
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hljs.highlightBlock(e);
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});
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});
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}
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export function registerHighlightJSLanguage(name, fn) {
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_moreLanguages.push({ name, fn });
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}
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function customHighlightJSLanguages() {
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_moreLanguages.forEach((l) => {
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if (hljs.getLanguage(l.name) === undefined) {
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hljs.registerLanguage(l.name, l.fn);
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}
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});
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}
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