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Code Quality Rank: L5
Programming language: Swift
License: MIT License
Tags: Command Line    
Latest version: v0.9.0

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README

SwiftyTextTable

A lightweight Swift library for generating text tables.

Build Status codecov.io Carthage compatible Swift Package Manager compatible CocoaPods Platform OS X + Linux Language Swift 4.0

Example

Swift Language Support

SwiftyTextTable is now Swift 4.0 compatible! The last release to support Swift 3.1 was 0.7.1. The last release to support Swift 2.3 was 0.3.1.

Installation

Carthage (OS X)

You can use Carthage to install SwiftyTextTable by adding it to your Cartfile:

github "scottrhoyt/SwiftyTextTable"

Swift Package Manager (OS X + Linux)

You can use The Swift Package Manager to install SwiftyTextTable by adding the proper description to your Package.swift file:

import PackageDescription

let package = Package(
    name: "<YOUR_PROJECT_NAME>",
    dependencies: [
        .package(url: "https://github.com/scottrhoyt/SwiftyTextTable.git", from: "0.5.0")
    ]
)

CocoaPods (OS X)

You can use CocoaPods to install SwiftyTextTable by adding it to your Podfile:

pod 'SwiftyTextTable'

Manual

Simply copy the *.swift files from the Source/SwiftyTextTable directory into your project.

Usage

import SwiftyTextTable

// First create some columns
let foo = TextTableColumn(header: "foo")
let bar = TextTableColumn(header: "bar")
let baz = TextTableColumn(header: "baz")

// Then create a table with the columns
var table = TextTable(columns: [foo, bar, baz])

// Then add some rows
table.addRow([1, 2, 3])
table.addRow([11, 22, 33])

// Then render the table and use
let tableString = table.render()
print(tableString)

/*
+-----+-----+-----+
| foo | bar | baz |
+-----+-----+-----+
| 1   | 2   | 3   |
| 11  | 22  | 33  |
+-----+-----+-----+
*/

// Put a header on the table if you'd like
table.header = "my foo table"
print(table.render())

/*
+-----------------+
| my foo table    |
+-----------------+
| foo | bar | baz |
+-----+-----+-----+
| 1   | 2   | 3   |
| 11  | 22  | 33  |
+-----+-----+-----+
*/

Any CustomStringConvertible can be used for row values.

Creating Tables from Arrays of Objects with TextTableRepresentable

Let's say you have an array of objects that looks this:

enum AnimalType: String, CustomStringConvertible {
    case dog = "Dog"
    case cat = "Cat"
    case gorilla = "Gorilla"

    var description: String {
        return self.rawValue
    }
}

struct Pet {
    let type: AnimalType
    let name: String
    let canHazPizza: Bool
}

let furball = Pet(type: .cat, name: "Furball", canHazPizza: false)
let bestFriend = Pet(type: .dog, name: "Best Friend", canHazPizza: true)
let scary = Pet(type: .gorilla, name: "Scary", canHazPizza: true)
let pets = [furball, bestFriend, scary]

Now you want to print a table containing your pets. You can accomplish this by having Pet conform to TextTableRepresentable:

extension Pet: TextTableRepresentable {
    static var columnHeaders: [String] {
        return ["Name", "Animal", "Can Haz Pizza?"]
    }

    var tableValues: [CustomStringConvertible] {
        return [name, type, canHazPizza ? "yes" : "no"]
    }

    // Optional
    static var tableHeader: String? {
      return "My Pets"
    }
}

You can now print a table of your pets simply:

print(pets.renderTextTable())

/*
+----------------------------------------+
| My Pets                                |
+----------------------------------------+
| Name        | Animal  | Can Haz Pizza? |
+-------------+---------+----------------+
| Furball     | Cat     | no             |
| Best Friend | Dog     | yes            |
| Scary       | Gorilla | yes            |
+-------------+---------+----------------+
*/

Fence Custimization

You can also customize the output of TextTable.render() by using different values for columnFence, rowFence, and cornerFence.

table.columnFence = ":"
table.rowFence = "."
table.cornerFence = "."

print(table.render())

/*
...................
: foo : bar : baz :
...................
: 1   : 2   :     :
: 11  : 22  : 33  :
...................
*/

Row Padding/Truncation

When adding rows, TextTable will automatically pad the rows with empty strings when there are fewer values than columns. TextTable will also disregard all values over the column count.

let foo = TextTableColumn(header: "foo")
let bar = TextTableColumn(header: "bar")
let baz = TextTableColumn(header: "baz")

var table = TextTable(columns: [foo, bar, baz])

table.addRow([1, 2])
table.addRow([11, 22, 33])
table.addRow([111, 222, 333, 444])

let tableString = table.render()
print(tableString)

/*
+-----+-----+-----+
| foo | bar | baz |
+-----+-----+-----+
| 1   | 2   |     |
| 11  | 22  | 33  |
| 111 | 222 | 333 |
+-----+-----+-----+
*/

Console Formatting Support

SwiftyTextTable will recognize many console escape sequences used to format output (e.g. Rainbow) and account for them in constructing the table.

API Reference

Check out the full API reference here.

License

SwiftyTextTable is released under the MIT License.


*Note that all licence references and agreements mentioned in the SwiftyTextTable README section above are relevant to that project's source code only.