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// Returns [get, set]. Changes to the value can be observed with onChange.
function watch(value) {
    let val = value;

    function get() {
        return val;
    }
    get.handlers = [];

    function set(newValue) {

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// an affine transformation matrix
class AffineTransform {
    // the matrix is represented as a 3x3 matrix
    // | A C Tx |
    // | B D Ty |
    // | 0 0 1  |

    // A, B, C, D are the coefficients of the linear transformation
    // Tx, Ty are the translation components
    constructor(A, C, Tx, B, D, Ty) {

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//
//  Transferable+Extensions.swift
//  ImageWriter
//
//  Created by David Albert on 8/5/24.
//

import CoreTransferable
import os
import SwiftUI

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//
//  ContentView.swift
//  UnicodeExplorer
//
//  Created by David Albert on 5/1/24.
//

import SwiftUI

struct ContentView: View {

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import Cocoa

class MyAutoscrollingView: NSView {
    override func mouseDown(with event: NSEvent) {
        // mouseDown-specific logic here

        var mouseEvent = event
        var done = false
        NSEvent.startPeriodicEvents(afterDelay: 0.1, withPeriod: 0.05)

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import UniformTypeIdentifiers

// As of macOS 14.3
extension UTType {
    static var allTypes: [UTType] {
        [
            .item,
            .content,
            .compositeContent,
            .diskImage,

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// Cursed! Do not use!

// Supports most, but not all Text initializers.

import SwiftUI

extension FormatStyle {
    func format(any value: Any) -> FormatOutput? {
        if let v = value as? FormatInput {
            return format(v)

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//
//  OnWindowClose.swift
//
//  Created by David Albert on 12/16/23.
//

import SwiftUI
import AppKit

struct WindowReader: NSViewRepresentable {

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extension Range where Bound == Int {
    init<Summary>(_ range: Range<BTreeNode<Summary>.Index>, in root: BTreeNode<Summary>) where Summary: BTreeSummary {
        range.lowerBound.validate(for: root)
        range.upperBound.validate(for: root)
        self = range.lowerBound.position..<range.upperBound.position
    }
}

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extension Chunk {
  mutating func fixup(withPrevious prev: Chunk) -> Bool {
        var i = string.startIndex
        var first: String.Index?

        var old = startBreakState
        var new = prev.endBreakState

        startBreakState = new