closes #3051

updated lru to latest
created new files posts/cache.js posts/parse.js posts/edit.js

src/posts/parse.js

@@ -0,0 +1,33 @@
+
+'use strict';
+
+var cache = require('./cache'),
+	plugins = require('../plugins');
+
+module.exports = function(Posts) {
+
+	Posts.parsePost = function(postData, callback) {
+		postData.content = postData.content || '';
+
+		var cachedContent = cache.get(postData.pid);
+		if (cachedContent) {
+			postData.content = cachedContent;
+			return callback(null, postData);
+		}
+
+		plugins.fireHook('filter:parse.post', {postData: postData}, function(err, data) {
+			if (err) {
+				return callback(err);
+			}
+			cache.set(data.postData.pid, data.postData.content);
+
+			callback(null, data.postData);
+		});
+	};
+
+	Posts.parseSignature = function(userData, uid, callback) {
+		userData.signature = userData.signature || '';
+
+		plugins.fireHook('filter:parse.signature', {userData: userData, uid: uid}, callback);
+	};
+};