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import Cocoa

@objc
class SomeTextStorage: NSTextStorage {
    
    private var storage: NSMutableAttributedString
    
    override init() {
        storage = NSMutableAttributedString(string: "", attributes: nil)
        super.init()

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function run() {
	const MediaRemote = $.NSBundle.bundleWithPath('/System/Library/PrivateFrameworks/MediaRemote.framework/');
	MediaRemote.load
	
	const MRNowPlayingRequest = $.NSClassFromString('MRNowPlayingRequest');
	
	const appName = MRNowPlayingRequest.localNowPlayingPlayerPath.client.displayName;
	const infoDict = MRNowPlayingRequest.localNowPlayingItem.nowPlayingInfo;
	
	const title = infoDict.valueForKey('kMRMediaRemoteNowPlayingInfoTitle');

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MarkEdit Scripting Example Document

To run the MarkEdit example scripts, move or copy this file (Example.md) to your Downloads directory.

Very Important Content

The quick brown fox jumps over the lazy dog.

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export AEDebugSends=1 AEDebugReceives=1 AEDebugVerbose=1 AEDebugOSL=1 AEDebugFlattenedEvents=1 AEDebug=1; osascript ...

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File Magic Numbers

Magic numbers are the first bits of a file which uniquely identify the type of file. This makes programming easier because complicated file structures need not be searched in order to identify the file type.

For example, a jpeg file starts with ffd8 ffe0 0010 4a46 4946 0001 0101 0047 ......JFIF.....G ffd8 shows that it's a JPEG file, and ffe0 identify a JFIF type structure. There is an ascii encoding of "JFIF" which comes after a length code, but that is not necessary in order to identify the file. The first 4 bytes do that uniquely.

This gives an ongoing list of file-type magic numbers.

Image Files

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public extension NSImage {
    /// Resizes the image to the specified pixel dimensions.
    /// - Parameter newSize: The width and height (in pixels) to resize the image to.
    func resize(to newSize: NSSize) -> NSImage {
        guard let rep = NSBitmapImageRep(bitmapDataPlanes: nil, pixelsWide: Int(newSize.width), pixelsHigh: Int(newSize.height), bitsPerSample: 8, samplesPerPixel: 4, hasAlpha: true, isPlanar: false, colorSpaceName: .calibratedRGB, bytesPerRow: 0, bitsPerPixel: 0) else {
            assertionFailure("Could not create NSBitmapImageRep")
            return self
        }
        rep.size = newSize
        

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public extension NSImage {
    /// The pixel width and height of the image.
    var dimensions: NSSize {
        let rep = self.representations.first
        return NSSize(width: rep?.pixelsWide ?? 0, height: rep?.pixelsHigh ?? 0)
    }
}

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public extension NSImage {
    /// Gets the color at the specified coordinate.
    /// - Parameters:
    ///   - x: The horizontal coordinate.
    ///   - y: The vertical coordinate.
    func colorAt(x: Int, y: Int) -> NSColor? {
        if let tiffRep = self.tiffRepresentation {
            if let bitmapRep = NSBitmapImageRep(data: tiffRep) {
                let flippedY = Int(bitmapRep.size.height) - y
                let color = bitmapRep.colorAt(x: x, y: flippedY)

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on resize(sourceImage, newSize)
	set rep to current application's NSBitmapImageRep's alloc()'s initWithBitmapDataPlanes:(missing value) pixelsWide:(newSize's width) pixelsHigh:(newSize's height) bitsPerSample:8 samplesPerPixel:4 hasAlpha:true isPlanar:no colorSpaceName:(current application's NSCalibratedRGBColorSpace) bytesPerRow:0 bitsPerPixel:0
	rep's setSize:newSize
	
	current application's NSGraphicsContext's saveGraphicsState()
	current application's NSGraphicsContext's setCurrentContext:(current application's NSGraphicsContext's graphicsContextWithBitmapImageRep:rep)
	sourceImage's drawInRect:(current application's NSMakeRect(0, 0, newSize's width, newSize's height)) fromRect:(current application's NSZeroRect) operation:(current application's NSCompositeCopy) fraction:1.0
	current application's NSGraphicsContext's restoreGraphicsState()
	
	set newImage to current application's NSImage's alloc()'s initWithSize:newSize

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public extension NSImage {
    /// Initializes and returns a new color swatch image.
    /// - Parameters:
    ///   - color: The fill color of the image.
    ///   - size: The width and height of the image.
    convenience init(color: NSColor, size: NSSize) throws {
        self.init(size: size)
        
        guard let ciColor = CIColor(color: color) else {
            assertionFailure("Could not create CIColor from NSColor")