fix whitespace and filename

core/modules/parsers/wikiparser/rules/emphasis/strikethrough.js

@@ -0,0 +1,50 @@
+/*\
+title: $:/core/modules/parsers/wikiparser/rules/emphasis/strikethrough.js
+type: application/javascript
+module-type: wikirule
+
+Wiki text inline rule for emphasis - strikethrough. For example:
+
+```
+	This is ~~strikethrough~~ text
+```
+
+This wikiparser can be modified using the rules eg:
+
+```
+\rules except strikethrough 
+\rules only strikethrough 
+```
+
+\*/
+(function(){
+
+/*jslint node: true, browser: true */
+/*global $tw: false */
+"use strict";
+
+exports.name = "strikethrough";
+exports.types = {inline: true};
+
+exports.init = function(parser) {
+	this.parser = parser;
+	// Regexp to match
+	this.matchRegExp = /~~/mg;
+};
+
+exports.parse = function() {
+	// Move past the match
+	this.parser.pos = this.matchRegExp.lastIndex;
+
+	// Parse the run including the terminator
+	var tree = this.parser.parseInlineRun(/~~/mg,{eatTerminator: true});
+
+	// Return the classed span
+	return [{
+		type: "element",
+		tag: "strike",
+		children: tree
+	}];
+};
+
+})();