Locally add prismjs

node_modules/prismjs/components/index.js

@@ -0,0 +1,56 @@
+const components = require('../components.js');
+const getLoader = require('../dependencies');
+
+
+/**
+ * The set of all languages which have been loaded using the below function.
+ *
+ * @type {Set<string>}
+ */
+const loadedLanguages = new Set();
+
+/**
+ * Loads the given languages and adds them to the current Prism instance.
+ *
+ * If no languages are provided, __all__ Prism languages will be loaded.
+ *
+ * @param {string|string[]} [languages]
+ * @returns {void}
+ */
+function loadLanguages(languages) {
+	if (languages === undefined) {
+		languages = Object.keys(components.languages).filter(l => l != 'meta');
+	} else if (!Array.isArray(languages)) {
+		languages = [languages];
+	}
+
+	// the user might have loaded languages via some other way or used `prism.js` which already includes some
+	// we don't need to validate the ids because `getLoader` will ignore invalid ones
+	const loaded = [...loadedLanguages, ...Object.keys(Prism.languages)];
+
+	getLoader(components, languages, loaded).load(lang => {
+		if (!(lang in components.languages)) {
+			if (!loadLanguages.silent) {
+				console.warn('Language does not exist: ' + lang);
+			}
+			return;
+		}
+
+		const pathToLanguage = './prism-' + lang;
+
+		// remove from require cache and from Prism
+		delete require.cache[require.resolve(pathToLanguage)];
+		delete Prism.languages[lang];
+
+		require(pathToLanguage);
+
+		loadedLanguages.add(lang);
+	});
+}
+
+/**
+ * Set this to `true` to prevent all warning messages `loadLanguages` logs.
+ */
+loadLanguages.silent = false;
+
+module.exports = loadLanguages;