Alexei Zaviruha AZaviruha

Reader Macros in Common Lisp

This post also appears on lisper.in.

Reader macros are perhaps not as famous as ordinary macros. While macros are a great way to create your own DSL, reader macros provide even greater flexibility by allowing you to create entirely new syntax on top of Lisp.

Paul Graham explains them very well in [On Lisp][] (Chapter 17, Read-Macros):

The three big moments in a Lisp expression's life are read-time, compile-time, and runtime. Functions are in control at runtime. Macros give us a chance to perform transformations on programs at compile-time. ...read-macros... do their work at read-time.

Virtual Hosts on nginx (CSC309)

When hosting our web applications, we often have one public IP address (i.e., an IP address visible to the outside world) using which we want to host multiple web apps. For example, one may wants to host three different web apps respectively for example1.com, example2.com, and example1.com/images on the same machine using a single IP address.

How can we do that? Well, the good news is Internet browsers

The introduction to Reactive Programming you've been missing

(by @andrestaltz)

This tutorial as a series of videos

If you prefer to watch video tutorials with live-coding, then check out this series I recorded with the same contents as in this article: Egghead.io - Introduction to Reactive Programming.

Typing Haskell in Haskell

MARK P. JONES

Pacific Software Research Center

Department of Computer Science and Engineering

Oregon Graduate Institute of Science and Technology

Basic unit type:

λ> replTy "()"
() :: ()

Basic functions:

Rich Hickey on becoming a better developer

Rich Hickey • 3 years ago

Sorry, I have to disagree with the entire premise here.

A wide variety of experiences might lead to well-roundedness, but not to greatness, nor even goodness. By constantly switching from one thing to another you are always reaching above your comfort zone, yes, but doing so by resetting your skill and knowledge level to zero.

Mastery comes from a combination of at least several of the following:

	<!DOCTYPE html>
	<html>
	<head>
	<title>Treating UI Widgets Like State Machines</title>

	<style type="text/css">

	/* DEFAULT state for MENU. */

	div.menu {

	#%RAML 0.8

	title: World Music API
	baseUri: http://example.api.com/{version}
	version: v1
	schemas:
	- halLink: \|
	{ "$schema": "http://json-schema.org/schema",
	"type": "object",
	"description": "a Hypertext Application Language link",

	var gulp = require('gulp');
	var sourcemaps = require('gulp-sourcemaps');
	var source = require('vinyl-source-stream');
	var buffer = require('vinyl-buffer');
	var browserify = require('browserify');
	var watchify = require('watchify');
	var babel = require('babelify');

	function compile(watch) {
	var bundler = watchify(browserify('./src/index.js', { debug: true }).transform(babel));

	import java.io.FileDescriptor;
	import java.io.FileOutputStream;
	import java.io.IOException;
	import java.io.OutputStream;
	import java.io.PrintStream;

	public class HelloWorld{
	private static HelloWorld instance;
	public static void main(String[] args){
	instantiateHelloWorldMainClassAndRun();