Locally add prismjs

node_modules/prismjs/plugins/show-invisibles/prism-show-invisibles.css

@@ -0,0 +1,34 @@
+.token.tab:not(:empty),
+.token.cr,
+.token.lf,
+.token.space {
+	position: relative;
+}
+
+.token.tab:not(:empty):before,
+.token.cr:before,
+.token.lf:before,
+.token.space:before {
+	color: #808080;
+	opacity: 0.6;
+	position: absolute;
+}
+
+.token.tab:not(:empty):before {
+	content: '\21E5';
+}
+
+.token.cr:before {
+	content: '\240D';
+}
+
+.token.crlf:before {
+	content: '\240D\240A';
+}
+.token.lf:before {
+	content: '\240A';
+}
+
+.token.space:before {
+	content: '\00B7';
+}

node_modules/prismjs/plugins/show-invisibles/prism-show-invisibles.js

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+(function () {
+
+	if (typeof Prism === 'undefined') {
+		return;
+	}
+
+
+	var invisibles = {
+		'tab': /\t/,
+		'crlf': /\r\n/,
+		'lf': /\n/,
+		'cr': /\r/,
+		'space': / /
+	};
+
+
+	/**
+	 * Handles the recursive calling of `addInvisibles` for one token.
+	 *
+	 * @param {Object|Array} tokens The grammar or array which contains the token.
+	 * @param {string|number} name The name or index of the token in `tokens`.
+	 */
+	function handleToken(tokens, name) {
+		var value = tokens[name];
+
+		var type = Prism.util.type(value);
+		switch (type) {
+			case 'RegExp':
+				var inside = {};
+				tokens[name] = {
+					pattern: value,
+					inside: inside
+				};
+				addInvisibles(inside);
+				break;
+
+			case 'Array':
+				for (var i = 0, l = value.length; i < l; i++) {
+					handleToken(value, i);
+				}
+				break;
+
+			default: // 'Object'
+				// eslint-disable-next-line no-redeclare
+				var inside = value.inside || (value.inside = {});
+				addInvisibles(inside);
+				break;
+		}
+	}
+
+	/**
+	 * Recursively adds patterns to match invisible characters to the given grammar (if not added already).
+	 *
+	 * @param {Object} grammar
+	 */
+	function addInvisibles(grammar) {
+		if (!grammar || grammar['tab']) {
+			return;
+		}
+
+		// assign invisibles here to "mark" the grammar in case of self references
+		for (var name in invisibles) {
+			if (invisibles.hasOwnProperty(name)) {
+				grammar[name] = invisibles[name];
+			}
+		}
+
+		// eslint-disable-next-line no-redeclare
+		for (var name in grammar) {
+			if (grammar.hasOwnProperty(name) && !invisibles[name]) {
+				if (name === 'rest') {
+					addInvisibles(grammar['rest']);
+				} else {
+					handleToken(grammar, name);
+				}
+			}
+		}
+	}
+
+	Prism.hooks.add('before-highlight', function (env) {
+		addInvisibles(env.grammar);
+	});
+}());

node_modules/prismjs/plugins/show-invisibles/prism-show-invisibles.min.css

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+.token.cr,.token.lf,.token.space,.token.tab:not(:empty){position:relative}.token.cr:before,.token.lf:before,.token.space:before,.token.tab:not(:empty):before{color:grey;opacity:.6;position:absolute}.token.tab:not(:empty):before{content:'\21E5'}.token.cr:before{content:'\240D'}.token.crlf:before{content:'\240D\240A'}.token.lf:before{content:'\240A'}.token.space:before{content:'\00B7'}

node_modules/prismjs/plugins/show-invisibles/prism-show-invisibles.min.js

@@ -0,0 +1 @@
+!function(){if("undefined"!=typeof Prism){var r={tab:/\t/,crlf:/\r\n/,lf:/\n/,cr:/\r/,space:/ /};Prism.hooks.add("before-highlight",(function(r){i(r.grammar)}))}function e(r,a){var n=r[a];switch(Prism.util.type(n)){case"RegExp":var t={};r[a]={pattern:n,inside:t},i(t);break;case"Array":for(var f=0,s=n.length;f<s;f++)e(n,f);break;default:i(t=n.inside||(n.inside={}))}}function i(a){if(a&&!a.tab){for(var n in r)r.hasOwnProperty(n)&&(a[n]=r[n]);for(var n in a)a.hasOwnProperty(n)&&!r[n]&&("rest"===n?i(a.rest):e(a,n))}}}();