kristofk’s gists

kristofk / VoiceOverSeparatorLocals.swift

Last active December 2, 2025 08:39

Logic in Swift to print all the separators that different locales use. English and most languages use the standard ASCII comma to separate lists while some languages use sth else.

	import Foundation

	for locale in Locale.availableIdentifiers {
	let list = ["1", "2", "3", "4"]
	let listFormatter = ListFormatter()
	listFormatter.locale = Locale(identifier: locale)
	guard let formattedList = listFormatter.string(from: list) else {
	print("\(locale) Failed to format.")
	continue
	}

kristofk / AccessibilityPropertyOverrides.swift

Created October 15, 2025 11:33

Overwrite UIAccessibility properties for easier control and debugging

	var _accessibilityLabel: String? = ""
	override var accessibilityLabel: String? {
	get {
	_accessibilityLabel
	}
	set {
	print("[x] accessibilityValue: [\(_accessibilityLabel ?? "nil")] => [\(newValue ?? "nil")]")
	_accessibilityLabel = newValue
	}
	}

kristofk / UIAccessibilityTraits+CustomStringConvertible.swift

Last active October 15, 2025 11:34

Debug UIAccessibilityTraits

	import UIKit

	extension UIAccessibilityTraits: @retroactive CustomStringConvertible {
	public var description: String {
	var traits = [String]()
	if contains(.none) { traits.append("none") }
	if contains(.button) { traits.append("button") }
	if contains(.link) { traits.append("link") }
	if #available(iOS 6.0, *) {
	if contains(.header) { traits.append("header") }

kristofk / Main.swift

Created January 21, 2021 21:23

Simple implementation of Knuth-Morris-Pratt (KMP) algorithm in Swift

	// .─────────────────────.
	// _.───' `────.
	// ,' `.
	// ( init(next/1: ℕ[m]; P/1: ∑[m]) )
	// '─. ,─'
	// `────. _.───'
	// `──────────┬────────'
	// │
	// ┌─────────────────────────┴──────────────────────┐
	// │ next[1] := i := 0; j := 1 │

kristofk / Observable.swift

Last active August 17, 2019 10:12

Observer Pattern in Swift - Or at least my custom implementation

	struct Observable<T> {
	typealias ChangeHandler = (_ oldValue: T, _ newValue: T) -> Void

	var value: T {
	didSet {
	notifySubscribers(oldValue: oldValue, newValue: value)
	}
	}

	internal init(_ value: T) {

kristofk / TextField+shouldChangeCharactersIn.swift

Last active January 18, 2023 12:27

Custom reimplementation of textField(_:shouldChangeCharactersIn:replacamentString:)

	func textField(_ textField: UITextField, shouldChangeCharactersIn range: NSRange, replacementString string: String) -> Bool {
	let currentText = textField.text! as NSString
	let newText = currentText.replacingCharacters(in: range, with: string)
	textField.text = newText
	return false
	}

kristofk / gitrenamebranch.sh

Last active July 26, 2019 06:21

Renames the current branch and locally and on remote. (gitrenamebransh.sh <remote_name> <old_branch_name> <new_branch_name>)

	#!/bin/sh

	# Calling this script:
	# gitrenamebransh.sh <remote_name> <old_branch_name> <new_branch_name>

	# Rename the local branch to the new name
	git branch -m $2 $3

	# Delete the old branch on remote - where <remote> is, for example, origin
	git push $1 --delete $2

kristofk / fixgitignore.sh

Last active July 25, 2019 00:47

Apply gitignore to already existing project.

	#!/bin/sh
	git rm -r --cached .
	git add .
	git commit -m "Fixed Gitignore"

kristofk / xcode_build_fix.sh

Last active July 26, 2019 06:24

Fix to the following error message in terminal: terminated(72): xcrun --sdk macosx --find xctest output:

	sudo xcode-select --reset
	swift build

kristofk / switchMatrixVectors.swift

Last active October 15, 2018 13:33

Switch the rows and colums in Swift for vectors ( [[T]] ).

	func determineLongestItem<T>(in matrix: [[T]]) -> Int {
	var maxLength = 0
	for item in matrix {
	if item.count > maxLength {
	maxLength = item.count
	}
	}
	return maxLength
	}

Kristof Kocsis kristofk