// ==UserScript==
// @name        @-posting
// @version     0.2.2.0
// @namespace   atposting
// @license     WTFPL
// @include     *://boards.4chan.org/*
// @run-at      document-end
// @grant       none
// @description Link to posts in the same 4chan thread with "@".
// @downloadURL none
// ==/UserScript==
var twitterify = function(targets) {
	Array.prototype.forEach.call(targets, function(target) {
		target.innerHTML = target.innerHTML.replace(
			/@([0-9]+)/,
			'<a href="#p$1" class="quotelink">@$1</a>'
		);	
	});
};
var observer = new MutationObserver(function(mutations) {
	mutations.forEach(function(mutation) {
		twitterify(mutation.addedNodes);
	});
});
observer.observe(document.querySelector('.board .thread'), { attributes: true, childList: true });
twitterify(document.querySelectorAll('.postMessage'));