mayoff

(* To the extent possible under law, Rob Mayoff has waived all copyright and related or neighboring rights to “AppleScript to make Google Chrome open/reload a URL”. This work is published from: United States. https://creativecommons.org/publicdomain/zero/1.0/ *)
tell application "Google Chrome"
	activate
	set theUrl to "http://tycho.usno.navy.mil/cgi-bin/timer.pl"
	
	if (count every window) = 0 then
		make new window
	end if
	
	set found to false

mayoff

(defun mayoff:open-url-in-chrome (url)
  "Open URL in Google Chrome.  I use AppleScript to do several things:
  1. I tell Chrome to come to the front. If Chrome wasn't launched, this will also launch it.
  2. If Chrome has no windows open, I tell it to create one.
  3. If Chrome has a tab showing URL, I tell it to reload the tab, make that tab the active tab in its window, and bring its window to the front.
  4. If Chrome has no tab showing URL, I tell Chrome to make a new tab (in the front window) showing URL."
  (when (symbolp url)
    ; User passed a symbol instead of a string.  Use the symbol name.
    (setq url (symbol-name url)))
  (do-applescript (format "

mayoff

#import <Foundation/Foundation.h>

int gcd(int a, int b) {
    // assumes a >= 0 && b > 0
    while (b != 0) {
        int t = a % b;
        a = b;
        b = t;
    }
    return a;

mayoff

#define objc_msgSend(...) (objc_msgSend_without_cast())(__VA_ARGS__)

static inline id (*objc_msgSend_without_cast(void))(id, SEL, ...) __attribute__((deprecated("objc_msgSend must be cast to the correct type")));
static inline id (*objc_msgSend_without_cast(void))(id, SEL, ...) {
    return objc_msgSend;
}

mayoff

Errors in the squashing whitespace example code:

    main.m:13:57: error: expected ';' at end of declaration
    NSString *string = @"Lorem    ipsum dolar   sit  amet ."
                                                            ^

    main.m:14:90: error: extraneous ']' before ';'
    string = [string stringByTrimmingCharactersInSet:[NSCharacterSet whitespaceCharacterSet]]];
                                                                                             ^

mayoff

// Swift 2.2 syntax / API

import UIKit

extension UIBezierPath {

    class func arrow(from start: CGPoint, to end: CGPoint, tailWidth: CGFloat, headWidth: CGFloat, headLength: CGFloat) -> Self {
        let length = hypot(end.x - start.x, end.y - start.y)
        let tailLength = length - headLength

mayoff

#import <QuartzCore/QuartzCore.h>

@interface ArrowLayer : CALayer

@property (nonatomic) CGFloat thickness;
@property (nonatomic) CGFloat startRadians;
@property (nonatomic) CGFloat lengthRadians;
@property (nonatomic) CGFloat headLengthRadians;

@property (nonatomic, strong) UIColor *fillColor;

mayoff

// For an explanation of this code, see:
//  http://stackoverflow.com/questions/13595284/cgcontextcliptomask-not-clipping

#import <UIKit/UIKit.h>

@interface InnerShadowView : UIView

@property (nonatomic, strong) UIColor *fillColor;
@property (nonatomic) CGFloat cornerRadius;
@property (nonatomic, strong) UIColor *shadowColor;

mayoff

#import <UIKit/UIKit.h>

@interface UIBezierPath (forEachElement)

- (void)forEachElement:(void (^)(CGPathElement const *element))block;

@end

mayoff

#import "ViewController.h"
#import <QuartzCore/QuartzCore.h>

@interface ViewController ()

@end

@implementation ViewController {
    CALayer *_layer;
}