New parse rule for ~CamelCase

For backwards compatibility with text that includes ~ to suppress camelcase links

core/modules/parsers/wikiparser/rules/wikilinkprefix.js

@@ -0,0 +1,40 @@
+/*\
+title: $:/core/modules/parsers/wikiparser/rules/wikilinkprefix.js
+type: application/javascript
+module-type: wikirule
+
+Wiki text inline rule for suppressed wiki links. For example:
+
+```
+~SuppressedLink
+```
+
+\*/
+(function(){
+
+/*jslint node: true, browser: true */
+/*global $tw: false */
+"use strict";
+
+exports.name = "wikilinkprefix";
+exports.types = {inline: true};
+
+exports.init = function(parser) {
+	this.parser = parser;
+	// Regexp to match
+	this.matchRegExp = new RegExp($tw.config.textPrimitives.unWikiLink + $tw.config.textPrimitives.wikiLink,"mg");
+};
+
+/*
+Parse the most recent match
+*/
+exports.parse = function() {
+	// Get the details of the match
+	var linkText = this.match[0];
+	// Move past the wikilink
+	this.parser.pos = this.matchRegExp.lastIndex;
+	// Return the link without unwikilink character as plain text
+	return [{type: "text", text: linkText.substr(1)}];
+};
+
+})();