Attributed

µframework for Attributed strings.

What is Attributed?

Attributed aims to be a drop in replacement to the current version of the NSAttributedString API.

The NSAttributedString interface has a few shortcomings. If you donʼt know the key and type of value needed to set a certain attribute, you have to spend time checking documentation. Another concern is safety: passing a dictionary of type [String: Any] to the constructor of NSAttributedString is a potential crash at runtime waiting to happen.

Attributed provides developers a nicer alternative by extending the current NSAttributedString interface with a fluent, strongly typed, and easy to use API.

Features

Create NSAttributedString instances with a strongly typed, simple, and fluid interface
Combine NSAttributedStrings with +
Partially apply Attributes to parts of an NSAttributedString by providing a Range

Donʼt see a feature you need?

Feel free to open an issue requesting the feature you want or send over a pull request!

Usage

Creating a new `NSAttributedString` by closure composition

"This is not a string".at.attributed {
  return $0.foreground(color: .red)
           .font(UIFont(name: "Chalkduster", size: 24.0)!)
           .underlineStyle(.styleSingle)
}

Creating a new `NSAttributedString` by passing an attributes object

First create an Attributes object:

let attributes = Attributes {
    return $0.foreground(color: .red)
             .font(UIFont(name: "Chalkduster", size: 24.0)!)
             .underlineStyle(.styleSingle)
}

then simply apply the Attributes to a String:

"Hello".at.attributed(with: attributes)

Combining `NSAttributedString` with `+`

This library defines an concatenation operator + for concatentating instances of NSAttributedString. + works with NSAttributedString no different than it does for String. This can be useful for combining NSAttributedStrings with different attributes to produce the desired effect without having to specify ranges to apply different attributes to.

let bodyAttributes = Attributes { 
    return $0.foreground(color: .purple)
             .font(UIFont(name: "Noteworthy-Light", size: 20.0)!)
}

let authorAttributes = bodyAttributes.foreground(color: .black)

"I think theres something strangely musical about noise.".at.attributed(with: bodyAttributes)
+ "\n  - Trent Reznor".at.attributed(with: authorAttributes)

Installation

Carthage

If you use Carthage to manage your dependencies, simply add Attributed to your Cartfile:

github "Nirma/Attributed"

If you use Carthage to build your dependencies, make sure you have added Attributed.framework to the "Linked Frameworks and Libraries" section of your target, and have included Attributed.framework in your Carthage framework copying build phase.

CocoaPods

If you use CocoaPods to manage your dependencies, simply add Attributed to your Podfile:

pod 'AttributedLib'

Requirements

Xcode 9.0
Swift 4.0+

Contribution

Contributions are more than welcome!

License

Attributed is free software, and may be redistributed under the terms specified in the LICENSE file.

sreznic/Attributed