Lachlan O'Dea quelgar

Lachlan C++ Style Guide

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I do not use C++.

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	/*
	* Referentially transparent program to print the size of files.
	*
	* Techniques inspired by:
	* "Dead-Simple Dependency Injection"
	* Rúnar Óli Bjarnason
	* Northeast Scala Symposium, 2012
	*
	* To run: "scala filesizerer.scala"
	* When prompted, enter a file name.

	-- Inspired by http://nedbatchelder.com/blog/201301/stupid_languages.html
	-- which describes how the Javascript array.map function seems weird
	-- and also http://blog.sigfpe.com/2008/03/comonadic-arrays.html
	-- which describes the comonad for arrays

	import Data.Array
	import Data.Char

	class Functor w => Comonad w where
	(=>>) :: w a -> (w a -> b) -> w b

	import java.net.URI

	/**
	* State co-monad.
	*
	* `Store[F, _]` is the co-monad.
	*/
	final case class Store[F, R](get: F, set: F => R) {

	def map[S](f: R => S): Store[F, S] = Store(get, f compose set)

	import qualified Data.Map as Map


	-- Find the most frequently occurring item that occurs more than once
	-- Idea from http://skipoleschris.blogspot.com.au/2010/11/functional-programming-challenge-most.html

	most :: Ord a => [a] -> Maybe a
	most xs = fst $ foldl most' (Nothing, Map.empty) xs where
	most' (winning, seen) x = (winning', seen') where
	winning' = if count > winningCount then Just x else winning


	import java.util.*;
	import java.util.stream.Stream;


	/**
	* Find the most frequently occurring item that occurs more than once.
	* Idea from http://skipoleschris.blogspot.com.au/2010/11/functional-programming-challenge-most.html
	*/
	public final class Most {

	externalResolvers <<= resolvers map { rs =>
	Resolver.withDefaultResolvers(rs, scalaTools = false)
	}

	final case class Outer(inner: Outer#Inner) {

	final case class Inner(a: String)

	}

	<!DOCTYPE html>

	<html>

	<head>
	<meta http-equiv="Content-type" content="text/html; charset=utf-8">
	<title>Functional I/O Demo</title>

	<script type="text/javascript" src="http://code.jquery.com/jquery-2.1.0.min.js"></script>