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rOACCT/node_modules/prismjs/plugins/show-invisibles/prism-show-invisibles.js
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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);
			});
			}());