andrewcb

# A lightweight approach to parsing text with combinators.
# put together in an afternoon for a project by acb, dedicated to the public domain
# Inspired by Haskell Parsec and the PointFree swift-parsing library

import re

# elementary parsing functions.
# These take an input string and return `(parsed_value, remainder)` if 
# successful, or `None` if not.
# The functions below generate a parsing function when called.

andrewcb

// a simple Swift translation of the Haskell State monad
// taken from http://brandon.si/code/the-state-monad-a-tutorial-for-the-confused/


struct State<S,A> {
    let run: ((S)->(A,S))
}

let fromSToAAndS = { (v: Int) -> (String, Int) in
    if v%5 == 0 { return ("foo", v+1) }

andrewcb

//
//  AudioBufferExtensions.swift
//  Plink
//
//  Created by acb on 20/03/2019.
//  Copyright © 2019 Kineticfactory. All rights reserved.
//
//  Extensions for AudioBuffer and related classes

import CoreAudio

andrewcb

// Generating UIImages functionally in Swift
// By Andrew Bulhak  http://dev.null.org/acb/  github:andrewcb
// Distributed under the Apache Licence
//
// For more information, see http://tech.null.org/item/201603210210_functionally_uiimage

/* --------------------------------------------------------------
 A UIImage extension providing the means of functionally generating images; the general form is:
 
 let myImage = UIImage (width: w, height: h) { (x, y) in return pixelValue }

andrewcb

//  prefix-trie.swift  A generic prefix-matching trie in Swift
//  By Andrew Bulhak http://dev.null.org/acb/

/** The prefix trie has two types: the type of input element, C, and the type of final result for a successful prefix match, T. */
enum Trie<C:Hashable,T> {
    typealias IndexType = C
    typealias ResultType = T
    case Success(value:T)
    case Node([C:Trie<C,T>])
    

andrewcb

/*  Basic (Scala-esque) Futures/Promises in Swift on Linux (first draft)
 *  Author: Andrew Bulhak (https://github.com/andrewcb/)
 *  Distributed under Creative Commons CC-BY-SA. Some rights reserved.
 *
 *  Note: this code will not be performant until there's a proper 
 *  libdispatch available.
 */

import Foundation
import NSLinux