kevinlawler

<?php

// secure hashing of passwords using bcrypt, needs PHP 5.3+
// see http://codahale.com/how-to-safely-store-a-password/

// salt for bcrypt needs to be 22 base64 characters (but just [./0-9A-Za-z]), see http://php.net/crypt
// just an example; please use something more secure/random than sha1(microtime) :)
$salt = substr(str_replace('+', '.', base64_encode(sha1(microtime(true), true))), 0, 22);

// 2a is the bcrypt algorithm selector, see http://php.net/crypt

kevinlawler

// Modified from: http://www.switchonthecode.com/tutorials/using-core-plot-in-an-iphone-application
// NOTE: needs -load_all linker flag; might not be quite right - red/blue data line styles are not working

- (void)viewDidLoad
{
    [super viewDidLoad];
    
    graph = [[CPTXYGraph alloc] initWithFrame: self.view.bounds];
    
    CPTGraphHostingView *hostingView = (CPTGraphHostingView *)self.view;

kevinlawler

#!/usr/bin/env sh

##
# This is script with usefull tips taken from:
#   https://github.com/mathiasbynens/dotfiles/blob/master/.osx
#
# install it:
#   curl -sL https://raw.github.com/gist/2108403/hack.sh | sh
#

kevinlawler

# Migrating my old .gitconfig blog post from 2007 to here so I can update it easier.
# Original URL:
# http://geek.susanpotter.net/2007/11/my-gitconfig.html
[user]
  name = Susan Potter # make sure you change this
  email = me@susanpotter.net # make sure you change this
[color]
  diff = auto
  status = auto
  branch = auto

kevinlawler

Bank *b = [Bank instance];
Person *p = [Person instance];
[b addObserver:p forKeyPath:@"accountBalance" options:NSKeyValueObservingOptionNew context:NULL];
b.accountBalance = [NSNumber numberWithInt:99];


#import "NSSingleton.h"
@interface Bank : NSSingleton
@property (nonatomic, strong) NSNumber *accountBalance;
@end

kevinlawler

Make it real

Ideas are cheap. Make a prototype, sketch a CLI session, draw a wireframe. Discussions around concrete examples, not handy-waving abstractions. Don't say you did something, provide a URL that proves it.

Ship it

Nothing is real until it's being used by a real user. This doesn't mean you make a prototype in the morning and blog about it in the evening. It means you find one person you believe your product will help and try to get them to use it.

Do it with style

kevinlawler

/**
 * Converts an RGB color value to HSL. Conversion formula
 * adapted from http://en.wikipedia.org/wiki/HSL_color_space.
 * Assumes r, g, and b are contained in the set [0, 255] and
 * returns h, s, and l in the set [0, 1].
 *
 * @param   {number}  r       The red color value
 * @param   {number}  g       The green color value
 * @param   {number}  b       The blue color value
 * @return  {array}           The HSL representation

kevinlawler

static BOOL PSPDFIsDevelopmentBuild(void) {
#if TARGET_IPHONE_SIMULATOR
    return YES;
#else
    @autoreleasepool {
        // There is no provisioning profile in AppStore Apps.
        NSData *data = [NSData dataWithContentsOfFile:[NSBundle.mainBundle pathForResource:@"embedded" ofType:@"mobileprovision"]];
        if (data) {
            const char *bytes = [data bytes];
            NSMutableString *profile = [NSMutableString new];

kevinlawler

OS X Screencast to animated GIF

This gist shows how to create a GIF screencast using only free OS X tools: QuickTime, ffmpeg, and gifsicle.

Instructions

To capture the video (filesize: 19MB), using the free "QuickTime Player" application:

kevinlawler

// An IRC bot for the k5 programming language,
// using oK from : https://github.com/JohnEarnest/ok
"use strict";
var irc = require('irc');
var ok = require('./ok/ok');

const MAXLINES = 8;

var client = new irc.Client('irc.freenode.net', 'oK-bot', {
    channels: ['#jsoftware', '#learnprogramming']