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December 14, 2017 05:28
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Dump glyph names on iOS in order to test availability (Swift 3)
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| /* | |
| * Make a dummy application and run this in e.g. UIApplicationDelegate.application(_:didFinishLaunchingWithOptions:) | |
| */ | |
| let filemanager = FileManager.default | |
| let docsdir = filemanager.urls(for: .documentDirectory, in: .userDomainMask).first! | |
| try! filemanager.createDirectory(at: docsdir, withIntermediateDirectories: true, attributes: nil) | |
| let outfile = docsdir.appendingPathComponent("glyphtest.txt") | |
| filemanager.createFile(atPath: outfile.path, contents: nil, attributes: nil) | |
| let handle = try! FileHandle(forWritingTo: outfile) | |
| handle.truncateFile(atOffset: 0) | |
| let layoutmanager = NSLayoutManager() | |
| for c in 0...0x10ffff { | |
| if c >= 0xd800 && c <= 0xdfff { | |
| continue | |
| } | |
| var line: String | |
| if let scalar = UnicodeScalar(c) { | |
| let string = String(Character(scalar)) | |
| let text = NSTextStorage(attributedString: NSAttributedString(string: string)) | |
| text.addLayoutManager(layoutmanager) | |
| let glyph = layoutmanager.cgGlyph(at: 0) | |
| let attr = text.attribute(NSFontAttributeName, at: 0, longestEffectiveRange: nil, in: NSMakeRange(0, 1)) | |
| if let font = attr as? UIFont { | |
| if let cgfnt = CGFont(font.fontName as CFString) { | |
| if let name = cgfnt.name(for: glyph) { | |
| //print(name) | |
| line = String(format:"U+%06x %@\n", c, name as String) | |
| } else { | |
| line = String(format:"U+%06x (failed to get glyph name)\n", c) | |
| } | |
| } else { | |
| line = String(format:"U+%06x (failed to get CGFont)\n", c) | |
| } | |
| } else { | |
| line = String(format:"U+%06x (failed to get font)\n", c) | |
| } | |
| } else { | |
| line = String(format:"U+%06x (failed to get Unicode scalar)\n") | |
| } | |
| let data = line.data(using: String.Encoding.utf8, allowLossyConversion: false)! | |
| handle.write(data) | |
| } | |
| handle.closeFile() | |
| print(outfile) |
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lastresorttemplate)The only difference between the simulator and a real iPhone running 9.3.1 was some glyph names:
(<: simulator; >: iPhone)