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
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
|
//===----------------------------------------------------------------------===//
//
// This source file is part of the Swift open source project
//
// Copyright (c) 2014-2021 Apple Inc. and the Swift project authors
// Licensed under Apache License v2.0 with Runtime Library Exception
//
// See http://swift.org/LICENSE.txt for license information
// See http://swift.org/CONTRIBUTORS.txt for the list of Swift project authors
//
//===----------------------------------------------------------------------===//
public protocol Colorful: CustomStringConvertible {
func terminalString() -> String
}
extension Colorful {
public var description: String {
return terminalString()
}
}
extension Colorful where Self: RawRepresentable, RawValue: StringProtocol {
func terminalString() -> String {
return String(self.rawValue)
}
}
extension String: Colorful {
public func terminalString() -> String {
return self
}
}
extension Substring: Colorful {
public func terminalString() -> String {
return String(self)
}
}
extension Array: Colorful where Element == Colorful {
public func terminalString() -> String {
return self.map { $0.terminalString() }.joined()
}
}
extension Optional: CustomStringConvertible where Wrapped: Colorful {
public var description: String {
return terminalString()
}
}
extension Optional: Colorful where Wrapped: Colorful {
public func terminalString() -> String {
if let unwrapped = self {
return unwrapped.terminalString()
} else {
return ""
}
}
}
@resultBuilder
public struct ColorBuilder {
public static func buildOptional(_ component: [Colorful]?) -> [Colorful] {
return component ?? []
}
public static func buildBlock(_ components: Colorful...) -> [Colorful] {
return components
}
public static func buildEither(first component: [Colorful]) -> [Colorful] {
return component
}
public static func buildEither(second component: [Colorful]) -> [Colorful] {
return component
}
}
protocol Color: Colorful {}
enum Color4: String, Color {
case black = "\u{001b}[30m"
case red = "\u{001b}[31m"
case green = "\u{001b}[32m"
case yellow = "\u{001b}[33m"
case blue = "\u{001b}[34m"
case magenta = "\u{001b}[35m"
case cyan = "\u{001b}[36m"
case white = "\u{001b}[37m"
case brightBlack = "\u{001b}[30;1m"
case brightRed = "\u{001b}[31;1m"
case brightGreen = "\u{001b}[32;1m"
case brightYellow = "\u{001b}[33;1m"
case brightBlue = "\u{001b}[34;1m"
case brightMagenta = "\u{001b}[35;1m"
case brightCyan = "\u{001b}[36;1m"
case brightWhite = "\u{001b}[37;1m"
case reset = "\u{001b}[0m"
var bright: Color4 {
switch self {
case .black:
return .brightBlack
case .red:
return .brightRed
case .green:
return .brightGreen
case .yellow :
return .brightYellow
case .blue:
return .brightBlue
case .magenta:
return .brightMagenta
case .cyan:
return .brightCyan
case .white:
return .brightWhite
default:
return self
}
}
var description: String {
return self.rawValue
}
}
public func colorized(@ColorBuilder builder: () -> [Colorful]) -> Colorful {
return Colorized(.reset, builder)
}
public func plain(@ColorBuilder builder: () -> [Colorful]) -> Colorful {
return Colorized(.reset, builder)
}
public func black(@ColorBuilder builder: () -> [Colorful]) -> Colorful {
return Colorized(.black, builder)
}
public func brightBlack(@ColorBuilder builder: () -> [Colorful]) -> Colorful {
return Colorized(.brightBlack, builder)
}
public func red(@ColorBuilder builder: () -> [Colorful]) -> Colorful {
return Colorized(.red, builder)
}
public func brightRed(@ColorBuilder builder: () -> [Colorful]) -> Colorful {
return Colorized(.brightRed, builder)
}
public func green(@ColorBuilder builder: () -> [Colorful]) -> Colorful {
return Colorized(.green, builder)
}
public func brightGreen(@ColorBuilder builder: () -> [Colorful]) -> Colorful {
return Colorized(.brightGreen, builder)
}
public func yellow(@ColorBuilder builder: () -> [Colorful]) -> Colorful {
return Colorized(.yellow, builder)
}
public func brightYellow(@ColorBuilder builder: () -> [Colorful]) -> Colorful {
return Colorized(.brightYellow, builder)
}
public func blue(@ColorBuilder builder: () -> [Colorful]) -> Colorful {
return Colorized(.blue, builder)
}
public func brightBlue(@ColorBuilder builder: () -> [Colorful]) -> Colorful {
return Colorized(.brightBlue, builder)
}
public func magenta(@ColorBuilder builder: () -> [Colorful]) -> Colorful {
return Colorized(.magenta, builder)
}
public func brightMagenta(@ColorBuilder builder: () -> [Colorful]) -> Colorful {
return Colorized(.brightMagenta, builder)
}
public func cyan(@ColorBuilder builder: () -> [Colorful]) -> Colorful {
return Colorized(.cyan, builder)
}
public func brightCyan(@ColorBuilder builder: () -> [Colorful]) -> Colorful {
return Colorized(.brightCyan, builder)
}
public func white(@ColorBuilder builder: () -> [Colorful]) -> Colorful {
return Colorized(.white, builder)
}
public func brightWhite(@ColorBuilder builder: () -> [Colorful]) -> Colorful {
return Colorized(.brightWhite, builder)
}
struct Colorized: Colorful {
var color: Color
var items: [Colorful]
init(_ color: Color = Color4.reset, _ items: [Colorful]) {
self.color = color
self.items = items
}
init(_ color: Color4 = .reset, @ColorBuilder _ builder: () -> [Colorful]) {
self.color = color
self.items = builder()
}
func terminalString() -> String {
let inner = items.map { $0.terminalString() }.joined()
guard inner.hasSuffix(Color4.reset.rawValue) else {
return color.terminalString() + inner + Color4.reset.rawValue
}
return color.terminalString() + inner
}
}
|
