gngrwzrd

final class NSRegex {
    
    private let regex:NSRegularExpression
    private let subject:String
    private var matches:[NSTextCheckingResult] = []
    
    init(regex:NSRegularExpression, subject:String) {
        self.regex = regex
        self.subject = subject
        matches = regex.matches(in: subject, range: NSRange(location: 0, length: subject.count))

gngrwzrd

class AppDelegate {
    func appDidFinishLaunching() {
        //Before the app shows root view controller, check for an override style.
        window = UIWindow()
        if let override = UserDefaults.standard.bool(forKey: "OverrideStyle") {
            //There was an override set, use that otherwise use the system appearance
            window?.overrideUserInterfaceStyle = override ? .dark : .light
        }
    }
}

gngrwzrd

///Options that your UITextFieldDelegate or UITextViewDelegate can
///implement to provide some return key type options to the field navigator.
protocol FormFieldNavigationReturnKeyTypeOptions {
    
    ///Whether or not the field navigator can set return type.
    var fieldNavigatorCanSetReturnKeyType:Bool { get set }
    
    ///The return key type that the field navigator should set.
    var fieldNavigatorReturnKeyType:UIReturnKeyType? { get set }
    

gngrwzrd

class FormFieldNavigator {
    
    //...
    
    func update() {
        guard let view = view else { return }
        inputs = allInputs(view: view)
        inputs.sort { view1, view2 in
            let view1Frame = view1.convert(CGPoint.zero, to: nil)
            let view2Frame = view2.convert(CGPoint.zero, to: nil)

gngrwzrd

#import <Foundation/Foundation.h>

@class PipedTaskRunner;

@protocol PipedTaskRunnerDelegate 
@optional
- (void) taskRunner:(PipedTaskRunner *) taskRunner didReadData:(NSData *) data;
- (void) taskRunner:(PipedTaskRunner *) taskRunner didReadDataFromStdOut:(NSData *) data;
- (void) taskRunner:(PipedTaskRunner *) taskRunner didReadDataFromStdErr:(NSData *) data;
- (void) taskRunnerTerminated:(PipedTaskRunner *) taskRunner;

gngrwzrd

extension Notification.Name {
    
    ///Post this to go next.
    static let FormFieldNavigationNext = Notification.Name("FormFieldNavigationNext")
    
    ///Post this to go previous.
    static let FormFieldNavigationPrevious = Notification.Name("FormFieldNavigationPrevious")
    
    ///Post this to end editing.
    static let FormFieldNavigationDone = Notification.Name("FormFieldNavigationDone")

gngrwzrd

extension Notification.Name {
    
    ///Post this to go next.
    static let FormFieldNavigationNext = Notification.Name("FormFieldNavigationNext")
    
    ///Post this to go previous.
    static let FormFieldNavigationPrevious = Notification.Name("FormFieldNavigationPrevious")
    
    ///Post this to end editing.
    static let FormFieldNavigationDone = Notification.Name("FormFieldNavigationDone")

gngrwzrd

class FormFieldNavigator {
    
    weak var view:UIView? {
        didSet {
            if let _ = view {
                update()
            } else {
                inputs = []
            }
        }

gngrwzrd

inputs.sort { view1, view2 in
    let view1Frame = view1.convert(CGPoint.zero, to: nil)
    let view2Frame = view2.convert(CGPoint.zero, to: nil)
    if view1Frame.y == view2Frame.y {
        return view1Frame.x < view2Frame.x
    }
    return view1Frame.y < view2Frame.y
}

gngrwzrd

private func allInputs(view:UIView) -> [UIView] {
    var inputs:[UIView] = []
    for view in view.subviews {
        if view is UITextField || view is UITextView {
            inputs.append(view)
        }
        let subInputs = _allInputs(view: view)
        if subInputs.count > 0 {
            inputs.append(contentsOf: subInputs)
        }