Extract Colorizer from Swiftline

Author: thii

.gitignore

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+.DS_Store
+/.build
+/Packages
+/*.xcodeproj

.travis.yml

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+language: objective-c
+osx_image: xcode10
+script:
+- swift test

LICENSE

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+Copyright (c) 2015 Omar Abdelhafith <o.arrabi@me.com>
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.

Package.resolved

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+// swift-tools-version:4.2
+// The swift-tools-version declares the minimum version of Swift required to build this package.
+
+import PackageDescription
+
+let package = Package(
+    name: "Colorizer",
+    products: [
+        // Products define the executables and libraries produced by a package, and make them visible to other packages.
+        .library(
+            name: "Colorizer",
+            targets: ["Colorizer"]),
+    ],
+    dependencies: [
+        // Dependencies declare other packages that this package depends on.
+        .package(url: "https://github.com/Quick/Quick.git", from: "1.3.1"),
+        .package(url: "https://github.com/Quick/Nimble.git", from: "7.3.0"),
+    ],
+    targets: [
+        // Targets are the basic building blocks of a package. A target can define a module or a test suite.
+        // Targets can depend on other targets in this package, and on products in packages which this package depends on.
+        .target(
+            name: "Colorizer",
+            dependencies: []),
+        .testTarget(
+            name: "ColorizerTests",
+            dependencies: ["Colorizer", "Nimble", "Quick"]),
+    ]
+)

Package.swift

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+# Colorizer
+
+Colorizer helps adding colors to strings written to the terminal.
+
+This package was extracted from the [Swiftline](https://github.com/nsomar/Swiftline) package.
+
+## Usage
+
+Colorizer helps styling the strings before printing them to the terminal.  You
+can change the text color, the text background and the text style.  Colorizer
+works by extending `String` struct to add styling to it.
+
+To change the text color, use either `string.f` or `string.foreground`:
+
+```swift
+print("Red String".f.Red)
+print("Blue String".foreground.Blue)
+```
+
+To change the text background color, use either `string.b` or `string.background`:
+
+```swift
+print("I have a white background".b.White)
+print("My background color is green".background.Green)
+```
+
+To change the text background style, use either `string.s` or `string.style`:
+
+```swift
+print("I am a bold string".s.Bold)
+print("I have an underline".style.Underline)
+```
+
+You can compose foreground, background, and style:
+```swift
+print("I am an underlined red on white string".s.Underline.f.Red.b.White)
+```
+
+## Installation
+
+### Swift Package Manager
+Add `Colorizer` as dependency in your `Package.swift`
+
+```
+  import PackageDescription
+
+  let package = Package(name: "YourPackage",
+    dependencies: [
+      .package(url: "https://github.com/getGuaka/Colorizer.git", from: "0.0.0"),
+    ]
+  )
+```
+
+## License
+
+MIT

README.md

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+//
+//  Colorizer.swift
+//  Colorizer
+//
+//  Created by Omar Abdelhafith on 30/10/2015.
+//  Copyright © 2015 Omar Abdelhafith. All rights reserved.
+//
+
+
+extension String {
+
+    /// Access the methods to change the foreground color
+    public var f: StringForegroundColorizer {
+        return foreground
+    }
+
+    /// Access the methods to change the foreground color
+    public var foreground: StringForegroundColorizer {
+        return StringForegroundColorizer(string: self)
+    }
+
+    /// Access the methods to change the background color
+    public var b: StringBackgroundColorizer {
+        return background
+    }
+
+    /// Access the methods to change the background color
+    public var background: StringBackgroundColorizer {
+        return StringBackgroundColorizer(string: self)
+    }
+
+    /// Access the methods to change the text style
+    public var s: StringStyleColorizer {
+        return style
+    }
+
+    /// Access the methods to change the text style
+    public var style: StringStyleColorizer {
+        return StringStyleColorizer(string: self)
+    }
+
+}
+
+// MARK- Internal
+
+class Colorizer: CustomStringConvertible {
+
+    let color: StringStyle
+    let string: String
+
+    init(string: String, color: StringStyle) {
+        self.string = string
+        self.color = color
+    }
+
+    var description: String {
+        return color.colorize(string: string)
+    }
+}

Sources/Colorizer/Colorizer.swift

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+//
+//  StringBackgroundColorizer.swift
+//  StringBackgroundColorizer
+//
+//  Created by Omar Abdelhafith on 31/10/2015.
+//  Copyright © 2015 Omar Abdelhafith. All rights reserved.
+//
+
+
+extension String {
+
+    public struct StringBackgroundColorizer {
+
+        let string: String
+
+        public var Black: String {
+            return Colorizer(string: string, color: BackgroundColor.black).description
+        }
+
+        public var Red: String {
+            return Colorizer(string: string, color: BackgroundColor.red).description
+        }
+
+        public var Green: String {
+            return Colorizer(string: string, color: BackgroundColor.green).description
+        }
+
+        public var Yellow: String {
+            return Colorizer(string: string, color: BackgroundColor.yellow).description
+        }
+
+        public var Blue: String {
+            return Colorizer(string: string, color: BackgroundColor.blue).description
+        }
+
+        public var Magenta: String {
+            return Colorizer(string: string, color: BackgroundColor.magenta).description
+        }
+
+        public var Cyan: String {
+            return Colorizer(string: string, color: BackgroundColor.cyan).description
+        }
+
+        public var White: String {
+            return Colorizer(string: string, color: BackgroundColor.white).description
+        }
+    }
+}

Sources/Colorizer/StringBackgroundColorizer.swift

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+//
+//  StringForegroundColorizer.swift
+//  StringForegroundColorizer
+//
+//  Created by Omar Abdelhafith on 31/10/2015.
+//  Copyright © 2015 Omar Abdelhafith. All rights reserved.
+//
+
+
+extension String {
+
+    public struct StringForegroundColorizer {
+
+        let string: String
+
+        public var Black: String {
+            return Colorizer(string: string, color: ForegroundColor.black).description
+        }
+
+        public var Red: String {
+            return Colorizer(string: string, color: ForegroundColor.red).description
+        }
+
+        public var Green: String {
+            return Colorizer(string: string, color: ForegroundColor.green).description
+        }
+
+        public var Yellow: String {
+            return Colorizer(string: string, color: ForegroundColor.yellow).description
+        }
+
+        public var Blue: String {
+            return Colorizer(string: string, color: ForegroundColor.blue).description
+        }
+
+        public var Magenta: String {
+            return Colorizer(string: string, color: ForegroundColor.magenta).description
+        }
+
+        public var Cyan: String {
+            return Colorizer(string: string, color: ForegroundColor.cyan).description
+        }
+
+        public var White: String {
+            return Colorizer(string: string, color: ForegroundColor.white).description
+        }
+    }
+
+}