Grift (Graphs + Swift)

About

This is a library for creating, manipulating, querying and persisting Graph Data using the Swift programming language. It is written in a functional/immutable style.

Developed and tested on Linux (Ubuntu 16.04) using Swift 3.

The library has basic types for graphs, vertices and edges and uses JSON for persistence.

This project is in its early stages and therefore volatile and likely to change.

Install

import PackageDescription

let package = Package(
    name: "Your project/package name",
    dependencies: [
        .Package(
            url: "https://github.com/rudenoise/grift"
            majorVersion: 0
        )
    ]
)

Use

import Grift

// create some vertices

let vertexA = Vertex(
    name: "Vertex A",
    body: "A string..."
)

let vertexB = Vertex(
    name: "Vertex B",
    body: "Another string..."
)

// create a basic graph, with one edge

if let graphA = Graph(
    vertices: [vertexA, vertexB],
    edges: [
        Edge(
            from: vertexA.id,
            to: vertexB.id
        )
    ]
) {
    // grift uses a failable initializer,
    // so wont initailise unless graph is valid

    // make a similar graph with another vertex

    if let graphB = graphA.addVertex(
        Vertex(
            name: "Vertex C"
            body: "Text again..."
        )
    ) {

        // only alows a valid vertex

        // make another with a further edge

        if let graphC = graphB.addEdge(
            Edge(from: vertexB.id, to: vertexA.id)
        ) {
            // etc...
        }
    }

}

License

Licensed under GPLv3