hallettj / mediaserver.log

Created September 16, 2013 07:20

	2013-09-16 07:21:40,143 INFO com.buddycloud.mediaserver.Main - buddycloud Media Server HTTP server started!
	2013-09-16 07:21:41,481 ERROR com.buddycloud.mediaserver.Main - Media Server XMPP Component could not be started.
	org.xmpp.component.ComponentException: java.io.EOFException: input contained no data
	at org.jivesoftware.whack.ExternalComponent.connect(ExternalComponent.java:267) ~[whack.jar:na]
	at org.jivesoftware.whack.ExternalComponentManager.addComponent(ExternalComponentManager.java:211) ~[whack.jar:na]
	at org.jivesoftware.whack.ExternalComponentManager.addComponent(ExternalComponentManager.java:191) ~[whack.jar:na]
	at com.buddycloud.mediaserver.Main.createXMPPComponent(Main.java:138) ~[buddycloud-media-server-0.1.jar:na]
	at com.buddycloud.mediaserver.Main.startXMPPToolBox(Main.java:105) ~[buddycloud-media-server-0.1.jar:na]
	at com.buddycloud.mediaserver.Main.main(Main.java:51) ~[buddycloud-media-server-0.1.jar:na]
	Caused by: java.io.EOFException: in

hallettj / mori.markdown

Created September 10, 2013 23:26

Slides from my presentation on Mori, a library that makes data structures from the ClojureScript standard library available to plain JavaScript apps.

Mori is not an island

http://swannodette.github.io/mori/

Persistent data structures

var emptyVec = mori.vector();

var nonEmpty = mori.conj(emptyVec, 1, 2, 3, 4);

hallettj / for.sibilant

Created July 29, 2013 01:22

Demonstration of a monad comprehension macro in Sibilant, a Lisp dialect that compiles to JavaScript. See http://sibilantjs.info/ for information on Sibilant.

	; A monad comprehension is a syntactic construct that translates
	; synchronous-looking code into a callback-based implementation. Monads
	; are a very general abstraction - which means that monad comprehensions
	; have more expressive power than other sync-to-async code
	; transformations.

	; Here is an example that uses jQuery's $.get method to fetch resources:

	(def post-with-author (id)
	(for

hallettj / acorn.js

Created May 27, 2013 23:57

Defining a module in a way that will work in several different environments. This is from Acorn <https://github.com/marijnh/acorn.git>, a JavaScript parser.

	(function(mod) {
	if (typeof exports == "object" && typeof module == "object") return mod(exports); // CommonJS
	if (typeof define == "function" && define.amd) return define(["exports"], mod); // AMD
	mod(self.acorn \|\| (self.acorn = {})); // Plain browser env
	})(function(exports) {
	"use strict";

	exports.version = "0.2.0";

	/* ... */

hallettj / state-example-game.js

Created November 9, 2012 04:41

Implementation of a State monad in JavaScript

	/*
	* Example of a state monad in use. This is adapted from an example on
	* the Haskell Wiki:
	* http://www.haskell.org/haskellwiki/State_Monad#Complete_and_Concrete_Example_1
	*/
	require(['state', 'qunit'], function(state, qunit) {

	/*
	* playGame() is a recursive function that given an array of moves
	* defines an algorithm for constructing a final game score. Along

hallettj / base36.hs

Created August 25, 2012 21:56

Haskell library to convert unsigned integers to and from base36 representations

	-- Converts unsigned integers to and from base36 representations

	module Numeric.Base36 (
	readBase36
	, showBase36
	) where

	import Data.Char (isAscii, isLetter, isDigit, ord, chr, toLower)
	import Numeric (readInt, showIntAtBase)

hallettj / jquery.flatmap.js

Created August 1, 2012 02:08

$.flatMap, generalizes running asynchronous operations in sequence

	$.flatMap = function(promise, f) {
	var deferred = $.Deferred();

	function reject(/* arguments */) {
	// The reject() method puts a deferred into its failure
	// state.
	deferred.reject.apply(deferred, arguments);
	}

	promise.then(function(/* values... */) {

hallettj / iframe-memory-leak-prevention.html

Created July 16, 2012 23:28

iFrame memory leak prevention test

	<!doctype html>
	<html>
	<head>
	<title>iFrame memory leak prevention test</title>
	</head>
	<body>
	<h1>iFrame memory leak prevention test (void)</h1>

	<p>In IE up through version 8 adding an iframe to a page and
	removing it produces a memory leak in some cases. The pattern

hallettj / prototype_puzzle.js

Created May 22, 2012 20:56

Prototype Puzzle

	function f() {}
	f.prototype = { i: 10 };
	var i = new f();

	f.prototype = { j: 11 };
	var j = new f();

	equal(i.i, ?);
	equal(i.j, ?);
	equal(j.i, ?);

hallettj / xmonad.hs

Created March 6, 2012 19:45

XMonad configuration for a left-handed Tall layout


	{-# LANGUAGE FlexibleInstances, MultiParamTypeClasses #-}

	-- FlexibleInstances and MultiParamTypeClasses are necessary for the
	-- LayoutClass instance declaration of Flip.

	-- I use two monitors. The default tiled layout in XMonad, Tall, puts
	-- the master window on the left side of the screen. That feels right
	-- for my right screen. But for my left screen I would prefer the
	-- master window to be on the right side of the screen because that side

Jesse Hallett hallettj

Mori is not an island

Persistent data structures