Swiftpack.co - Package - Frugghi/SwiftLCS

SwiftLCS

Build Status Carthage compatible Pods Pod platforms

SwitLCS provides an extension of Collection that finds the indexes of the longest common subsequence with another collection.

The longest common subsequence (LCS) problem is the problem of finding the longest subsequence common to all sequences in a set of sequences (often just two sequences). It differs from problems of finding common substrings: unlike substrings, subsequences are not required to occupy consecutive positions within the original sequences.

The project is based on the Objective-C implementation of NSArray+LongestCommonSubsequence.

:package: Installation

CocoaPods

CocoaPods is the dependency manager for Swift and Objective-C Cocoa projects. It has over ten thousand libraries and can help you scale your projects elegantly.

Add this to your Podfile:

use_frameworks!

pod 'SwiftLCS'

Carthage

Carthage builds your dependencies and provides you with binary frameworks, but you retain full control over your project structure and setup.

Add this to your Cartfile:

github "Frugghi/SwiftLCS"

Swift Package Manager

The Swift Package Manager is a tool for managing the distribution of Swift code. It’s integrated with the Swift build system to automate the process of downloading, compiling, and linking dependencies.

Add SwiftLCS to your Package.swift dependencies:

import PackageDescription

let package = Package(
    dependencies: [
        .Package(url: "https://github.com/Frugghi/SwiftLCS.git", majorVersion: 1, minor: 3)
    ]
)

Manual

Include SwiftLCS.swift into your project.

:book: Documentation

The API documentation is available here.

:computer: Usage

Import the framework:

import SwiftLCS

String

let x = "abracadabra"
let y = "yabbadabbadoo"

let z = x.longestCommonSubsequence(y) // abadaba

Array

let x = [1, 2, 3, 4, 5, 6, 7]
let y = [8, 9, 2, 10, 4, 11, 6, 12]

let z = x.longestCommonSubsequence(y) // [2, 4, 6]

Indexes

let x = [1, 2, 3, 4, 5, 6, 7]
let y = [8, 9, 2, 10, 4, 11, 6, 12]

let diff = x.diff(y)
// diff.commonIndexes: [1, 3, 5]
// diff.addedIndexes: [0, 1, 3, 5, 7]
// diff.removedIndexes: [0, 2, 4, 6]

:warning: Objective-C

Object comparison of Objective-C objects is done through the isEquals: method, so be sure that the implementations is correct otherwise SwiftLCS will not return the correct indexes.

:page_facing_up: License LICENSE

SwiftLCS is released under the MIT license. See LICENSE for details.

Github

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Dependencies

Used By

Total: 0

Releases

1.3.2 - Feb 27, 2018

Breaking
  • None.
Enhancements
  • Minor performance improvements.
Bug Fixes
  • Fix bug with non bidirectional collections.

1.3.1 - Feb 16, 2018

Breaking
  • None.
Enhancements
  • Minor performance improvements.
Bug Fixes
  • None.

1.3.0 - Dec 1, 2017

Breaking
  • Must be compiled with Xcode 9.1 and Swift 4, use 1.1.1 if you are compiling with Swift 3 or 1.2.0 with Xcode 9.
Enhancements
  • Support for Xcode 9.1.
Bug Fixes
  • None.

1.2.0 - Sep 17, 2017

Breaking
  • Must be compiled with Xcode 9 and Swift 4, use 1.1.1 if you are compiling with Swift 3.
Enhancements
  • Support for Swift 4.
Bug Fixes
  • None.

1.1.1 - Mar 24, 2017

Breaking
  • None.
Enhancements
  • None.
Bug Fixes
  • Fix issue where addedIndexes could contain the same index multiple times. RaimarT #4