1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
|
/*
This source file is part of the Swift.org open source project
Copyright (c) 2021 Apple Inc. and the Swift project authors
Licensed under Apache License v2.0 with Runtime Library Exception
See https://swift.org/LICENSE.txt for license information
See https://swift.org/CONTRIBUTORS.txt for Swift project authors
*/
/// An inline image reference.
public struct Image: InlineMarkup, InlineContainer {
public var _data: _MarkupData
init(_ data: _MarkupData) {
self._data = data
}
init(_ raw: RawMarkup) throws {
guard case .image = raw.data else {
throw RawMarkup.Error.concreteConversionError(from: raw, to: Image.self)
}
let absoluteRaw = AbsoluteRawMarkup(markup: raw, metadata: MarkupMetadata(id: .newRoot(), indexInParent: 0))
self.init(_MarkupData(absoluteRaw))
}
}
// MARK: - Public API
public extension Image {
/// Create an image from a source and zero or more child inline elements.
init<Children: Sequence>(source: String? = nil, title: String? = nil, _ children: Children) where Children.Element == RecurringInlineMarkup {
let titleToUse: String?
if let t = title, t.isEmpty {
titleToUse = nil
} else {
titleToUse = title
}
let sourceToUse: String?
if let s = source, s.isEmpty {
sourceToUse = nil
} else {
sourceToUse = source
}
try! self.init(.image(source: sourceToUse, title: titleToUse, parsedRange: nil, children.map { $0.raw.markup }))
}
/// Create an image from a source and zero or more child inline elements.
init(source: String? = nil, title: String? = nil, _ children: RecurringInlineMarkup...) {
self.init(source: source, title: title, children)
}
/// The image's source.
var source: String? {
get {
guard case let .image(source, _) = _data.raw.markup.data else {
fatalError("\(self) markup wrapped unexpected \(_data.raw)")
}
return source
}
set {
guard newValue != source else {
return
}
if let s = newValue, s.isEmpty {
_data = _data.replacingSelf(.image(source: nil, title: title, parsedRange: nil, _data.raw.markup.copyChildren()))
} else {
_data = _data.replacingSelf(.image(source: newValue, title: title, parsedRange: nil, _data.raw.markup.copyChildren()))
}
}
}
/// The image's title.
var title: String? {
get {
guard case let .image(_, title) = _data.raw.markup.data else {
fatalError("\(self) markup wrapped unexpected \(_data.raw)")
}
return title
}
set {
guard newValue != title else {
return
}
if let t = newValue, t.isEmpty {
_data = _data.replacingSelf(.image(source: source, title: nil, parsedRange: nil, _data.raw.markup.copyChildren()))
} else {
_data = _data.replacingSelf(.image(source: source, title: newValue, parsedRange: nil, _data.raw.markup.copyChildren()))
}
}
}
// MARK: Visitation
func accept<V: MarkupVisitor>(_ visitor: inout V) -> V.Result {
return visitor.visitImage(self)
}
}
|
