diff --git a/.gitignore b/.gitignore
index 816482d..3031d0b 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,4 +1,6 @@
-vendor
+vendor/
+tests/coverage/
+.php_cs.cache
 
 
 # Windows files
diff --git a/.php_cs.dist b/.php_cs.dist
new file mode 100644
index 0000000..42ef197
--- /dev/null
+++ b/.php_cs.dist
@@ -0,0 +1,29 @@
+<?php
+/** @license MIT
+ * Copyright 2018 J. King et al.
+ * See LICENSE and AUTHORS files for details */
+
+namespace MensBeam\UTF8;
+
+const BASE = __DIR__.DIRECTORY_SEPARATOR;
+
+$paths = [
+    __FILE__,
+    BASE."RoboFile.php",
+    BASE."lib",
+    BASE."tests",
+];
+$rules = [
+    '@PSR2' => true,
+    'braces' => ['position_after_functions_and_oop_constructs' => "same"],
+];
+
+$finder = \PhpCsFixer\Finder::create();
+foreach ($paths as $path) {
+    if (is_file($path)) {
+        $finder = $finder->append([$path]);
+    } else {
+        $finder = $finder->in($path);
+    }
+}
+return \PhpCsFixer\Config::create()->setRules($rules)->setFinder($finder);
diff --git a/RoboFile.php b/RoboFile.php
new file mode 100644
index 0000000..c6eb0ed
--- /dev/null
+++ b/RoboFile.php
@@ -0,0 +1,76 @@
+<?php
+
+use Robo\Result;
+
+/**
+ * This is project's console commands configuration for Robo task runner.
+ *
+ * @see http://robo.li/
+ */
+class RoboFile extends \Robo\Tasks {
+    const BASE = __DIR__.\DIRECTORY_SEPARATOR;
+    const BASE_TEST = self::BASE."tests".\DIRECTORY_SEPARATOR;
+
+    /**
+     * Runs the full test suite
+     *
+     * Arguments passed to the task are passed on to PHPUnit. Thus one may, for
+     * example, run the following command and get the expected results:
+     *
+     * ./robo test --testsuite TTRSS --exclude-group slow --testdox
+     *
+     * Please see the PHPUnit documentation for available options.
+    */
+    public function test(array $args): Result {
+        $execpath = realpath(self::BASE."vendor-bin/phpunit/vendor/phpunit/phpunit/phpunit");
+        $confpath = realpath(self::BASE_TEST."phpunit.xml");
+        return $this->taskExec("php")->arg($execpath)->option("-c", $confpath)->args($args)->run();
+    }
+
+    /**
+     * Runs the full test suite
+     *
+     * This is an alias of the "test" task.
+    */
+    public function testFull(array $args): Result {
+        return $this->test($args);
+    }
+
+    /**
+     * Runs a quick subset of the test suite
+     *
+     * See help for the "test" task for more details.
+    */
+    public function testQuick(array $args): Result {
+        return $this->test(array_merge(["--exclude-group", "slow,optional"], $args));
+    }
+
+    /** Produces a code coverage report
+     *
+     * By default this task produces an HTML-format coverage report in
+     * arsse/tests/coverage/. Additional reports may be produced by passing
+     * arguments to this task as one would to PHPUnit.
+     *
+     * Robo first tries to use phpdbg and will fall back to Xdebug if available.
+     * Because Xdebug slows down non-coverage tasks, however, phpdbg is highly
+     * recommanded is debugging facilities are not otherwise needed.
+    */
+    public function coverage(array $args): Result {
+        // run tests with code coverage reporting enabled
+        $exec = $this->findCoverageEngine();
+        $execpath = realpath(self::BASE."vendor-bin/phpunit/vendor/phpunit/phpunit/phpunit");
+        $confpath = realpath(self::BASE_TEST."phpunit.xml");
+        return $this->taskExec($exec)->arg($execpath)->option("-c", $confpath)->option("--coverage-html", self::BASE_TEST."coverage")->args($args)->run();
+    }
+
+    protected function findCoverageEngine(): string {
+        $null = null;
+        $code = 0;
+        exec("phpdbg --version", $null, $code);
+        if (!$code) {
+            return "phpdbg -qrr";
+        } else {
+            return "php";
+        }
+    }
+}
diff --git a/composer.json b/composer.json
index 9add91f..5185b83 100644
--- a/composer.json
+++ b/composer.json
@@ -15,6 +15,14 @@
     "require": {
         "php": "^7.0"
     },
+    "require-dev": {
+        "ext-intl": "*",
+        "bamarni/composer-bin-plugin": "*"
+    },
+    "scripts": {
+        "post-install-cmd": ["@composer bin all install"],
+        "post-update-cmd": ["@composer bin all update"]
+    },
     "autoload": {
         "psr-4": {
             "MensBeam\\UTF8\\": "lib/"
diff --git a/composer.lock b/composer.lock
index 203ef38..201d901 100644
--- a/composer.lock
+++ b/composer.lock
@@ -4,9 +4,49 @@
         "Read more about it at https://getcomposer.org/doc/01-basic-usage.md#composer-lock-the-lock-file",
         "This file is @generated automatically"
     ],
-    "content-hash": "8394b8ab5a816511b1fad1a40758b186",
+    "content-hash": "5a5d645774a71daaee13b05eb2b172d0",
     "packages": [],
-    "packages-dev": [],
+    "packages-dev": [
+        {
+            "name": "bamarni/composer-bin-plugin",
+            "version": "v1.2.0",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/bamarni/composer-bin-plugin.git",
+                "reference": "62fef740245a85f00665e81ea8f0aa0b72afe6e7"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/bamarni/composer-bin-plugin/zipball/62fef740245a85f00665e81ea8f0aa0b72afe6e7",
+                "reference": "62fef740245a85f00665e81ea8f0aa0b72afe6e7",
+                "shasum": ""
+            },
+            "require": {
+                "composer-plugin-api": "^1.0"
+            },
+            "require-dev": {
+                "composer/composer": "dev-master",
+                "symfony/console": "^2.5 || ^3.0"
+            },
+            "type": "composer-plugin",
+            "extra": {
+                "class": "Bamarni\\Composer\\Bin\\Plugin",
+                "branch-alias": {
+                    "dev-master": "1.1-dev"
+                }
+            },
+            "autoload": {
+                "psr-4": {
+                    "Bamarni\\Composer\\Bin\\": "src"
+                }
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "MIT"
+            ],
+            "time": "2017-09-11T13:13:58+00:00"
+        }
+    ],
     "aliases": [],
     "minimum-stability": "stable",
     "stability-flags": [],
@@ -15,5 +55,7 @@
     "platform": {
         "php": "^7.0"
     },
-    "platform-dev": []
+    "platform-dev": {
+        "ext-intl": "*"
+    }
 }
diff --git a/robo b/robo
new file mode 100644
index 0000000..7d4d4d7
--- /dev/null
+++ b/robo
@@ -0,0 +1,10 @@
+#! /bin/sh
+base=`dirname "$0"`
+roboCommand="$1"
+
+shift
+if [ "$1" == "clean" ]; then
+    "$base/vendor/bin/robo" "$roboCommand" $*
+else
+    "$base/vendor/bin/robo" "$roboCommand" -- $*
+fi
\ No newline at end of file
diff --git a/robo.bat b/robo.bat
new file mode 100644
index 0000000..297f954
--- /dev/null
+++ b/robo.bat
@@ -0,0 +1,21 @@
+@echo off
+setlocal
+set base=%~dp0
+set roboCommand=%1
+
+rem get all arguments except the first
+shift
+set "args="
+:parse
+if "%~1" neq "" (
+  set args=%args% %1
+  shift
+  goto :parse
+)
+if defined args set args=%args:~1%
+
+if "%1"=="clean" (
+    call "%base%vendor\bin\robo" "%roboCommand%" %args%
+) else (
+    call "%base%vendor\bin\robo" "%roboCommand%" -- %args%
+)
diff --git a/tests/bootstrap.php b/tests/bootstrap.php
new file mode 100644
index 0000000..b2e4cfb
--- /dev/null
+++ b/tests/bootstrap.php
@@ -0,0 +1,13 @@
+<?php
+/** @license MIT
+ * Copyright 2018 J. King et al.
+ * See LICENSE and AUTHORS files for details */
+
+declare(strict_types=1);
+namespace MensBeam\UTF8;
+
+const NS_BASE = __NAMESPACE__."\\";
+define(NS_BASE."BASE", dirname(__DIR__).DIRECTORY_SEPARATOR);
+ini_set("memory_limit", "-1");
+error_reporting(\E_ALL);
+require_once BASE."vendor".DIRECTORY_SEPARATOR."autoload.php";
diff --git a/tests/phpunit.xml b/tests/phpunit.xml
new file mode 100644
index 0000000..eb7d9f8
--- /dev/null
+++ b/tests/phpunit.xml
@@ -0,0 +1,21 @@
+<?xml version="1.0"?>
+<phpunit
+    colors="true"
+    bootstrap="bootstrap.php"
+    convertErrorsToExceptions="false"
+    convertNoticesToExceptions="false"
+    convertWarningsToExceptions="false"
+    beStrictAboutTestsThatDoNotTestAnything="true"
+    beStrictAboutOutputDuringTests="true"
+    beStrictAboutTestSize="true"
+    stopOnError="true">
+
+<filter>
+  <whitelist processUncoveredFilesFromWhitelist="true">
+    <directory suffix=".php">../lib</directory>
+  </whitelist>
+</filter>
+
+<testsuites>
+</testsuites>
+</phpunit>
diff --git a/vendor-bin/csfixer/composer.json b/vendor-bin/csfixer/composer.json
new file mode 100644
index 0000000..3fd8b5d
--- /dev/null
+++ b/vendor-bin/csfixer/composer.json
@@ -0,0 +1,5 @@
+{
+    "require": {
+        "friendsofphp/php-cs-fixer": "^2.8"
+    }
+}
diff --git a/vendor-bin/csfixer/composer.lock b/vendor-bin/csfixer/composer.lock
new file mode 100644
index 0000000..216b640
--- /dev/null
+++ b/vendor-bin/csfixer/composer.lock
@@ -0,0 +1,1053 @@
+{
+    "_readme": [
+        "This file locks the dependencies of your project to a known state",
+        "Read more about it at https://getcomposer.org/doc/01-basic-usage.md#composer-lock-the-lock-file",
+        "This file is @generated automatically"
+    ],
+    "content-hash": "3fb53f1e3b4dd21c4d1e88c3ffd570ca",
+    "packages": [
+        {
+            "name": "composer/semver",
+            "version": "1.4.2",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/composer/semver.git",
+                "reference": "c7cb9a2095a074d131b65a8a0cd294479d785573"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/composer/semver/zipball/c7cb9a2095a074d131b65a8a0cd294479d785573",
+                "reference": "c7cb9a2095a074d131b65a8a0cd294479d785573",
+                "shasum": ""
+            },
+            "require": {
+                "php": "^5.3.2 || ^7.0"
+            },
+            "require-dev": {
+                "phpunit/phpunit": "^4.5 || ^5.0.5",
+                "phpunit/phpunit-mock-objects": "2.3.0 || ^3.0"
+            },
+            "type": "library",
+            "extra": {
+                "branch-alias": {
+                    "dev-master": "1.x-dev"
+                }
+            },
+            "autoload": {
+                "psr-4": {
+                    "Composer\\Semver\\": "src"
+                }
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "MIT"
+            ],
+            "authors": [
+                {
+                    "name": "Nils Adermann",
+                    "email": "naderman@naderman.de",
+                    "homepage": "http://www.naderman.de"
+                },
+                {
+                    "name": "Jordi Boggiano",
+                    "email": "j.boggiano@seld.be",
+                    "homepage": "http://seld.be"
+                },
+                {
+                    "name": "Rob Bast",
+                    "email": "rob.bast@gmail.com",
+                    "homepage": "http://robbast.nl"
+                }
+            ],
+            "description": "Semver library that offers utilities, version constraint parsing and validation.",
+            "keywords": [
+                "semantic",
+                "semver",
+                "validation",
+                "versioning"
+            ],
+            "time": "2016-08-30T16:08:34+00:00"
+        },
+        {
+            "name": "doctrine/annotations",
+            "version": "v1.4.0",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/doctrine/annotations.git",
+                "reference": "54cacc9b81758b14e3ce750f205a393d52339e97"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/doctrine/annotations/zipball/54cacc9b81758b14e3ce750f205a393d52339e97",
+                "reference": "54cacc9b81758b14e3ce750f205a393d52339e97",
+                "shasum": ""
+            },
+            "require": {
+                "doctrine/lexer": "1.*",
+                "php": "^5.6 || ^7.0"
+            },
+            "require-dev": {
+                "doctrine/cache": "1.*",
+                "phpunit/phpunit": "^5.7"
+            },
+            "type": "library",
+            "extra": {
+                "branch-alias": {
+                    "dev-master": "1.4.x-dev"
+                }
+            },
+            "autoload": {
+                "psr-4": {
+                    "Doctrine\\Common\\Annotations\\": "lib/Doctrine/Common/Annotations"
+                }
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "MIT"
+            ],
+            "authors": [
+                {
+                    "name": "Roman Borschel",
+                    "email": "roman@code-factory.org"
+                },
+                {
+                    "name": "Benjamin Eberlei",
+                    "email": "kontakt@beberlei.de"
+                },
+                {
+                    "name": "Guilherme Blanco",
+                    "email": "guilhermeblanco@gmail.com"
+                },
+                {
+                    "name": "Jonathan Wage",
+                    "email": "jonwage@gmail.com"
+                },
+                {
+                    "name": "Johannes Schmitt",
+                    "email": "schmittjoh@gmail.com"
+                }
+            ],
+            "description": "Docblock Annotations Parser",
+            "homepage": "http://www.doctrine-project.org",
+            "keywords": [
+                "annotations",
+                "docblock",
+                "parser"
+            ],
+            "time": "2017-02-24T16:22:25+00:00"
+        },
+        {
+            "name": "doctrine/lexer",
+            "version": "v1.0.1",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/doctrine/lexer.git",
+                "reference": "83893c552fd2045dd78aef794c31e694c37c0b8c"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/doctrine/lexer/zipball/83893c552fd2045dd78aef794c31e694c37c0b8c",
+                "reference": "83893c552fd2045dd78aef794c31e694c37c0b8c",
+                "shasum": ""
+            },
+            "require": {
+                "php": ">=5.3.2"
+            },
+            "type": "library",
+            "extra": {
+                "branch-alias": {
+                    "dev-master": "1.0.x-dev"
+                }
+            },
+            "autoload": {
+                "psr-0": {
+                    "Doctrine\\Common\\Lexer\\": "lib/"
+                }
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "MIT"
+            ],
+            "authors": [
+                {
+                    "name": "Roman Borschel",
+                    "email": "roman@code-factory.org"
+                },
+                {
+                    "name": "Guilherme Blanco",
+                    "email": "guilhermeblanco@gmail.com"
+                },
+                {
+                    "name": "Johannes Schmitt",
+                    "email": "schmittjoh@gmail.com"
+                }
+            ],
+            "description": "Base library for a lexer that can be used in Top-Down, Recursive Descent Parsers.",
+            "homepage": "http://www.doctrine-project.org",
+            "keywords": [
+                "lexer",
+                "parser"
+            ],
+            "time": "2014-09-09T13:34:57+00:00"
+        },
+        {
+            "name": "friendsofphp/php-cs-fixer",
+            "version": "v2.11.1",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/FriendsOfPHP/PHP-CS-Fixer.git",
+                "reference": "ad94441c17b8ef096e517acccdbf3238af8a2da8"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/FriendsOfPHP/PHP-CS-Fixer/zipball/ad94441c17b8ef096e517acccdbf3238af8a2da8",
+                "reference": "ad94441c17b8ef096e517acccdbf3238af8a2da8",
+                "shasum": ""
+            },
+            "require": {
+                "composer/semver": "^1.4",
+                "doctrine/annotations": "^1.2",
+                "ext-json": "*",
+                "ext-tokenizer": "*",
+                "php": "^5.6 || >=7.0 <7.3",
+                "php-cs-fixer/diff": "^1.3",
+                "symfony/console": "^3.2 || ^4.0",
+                "symfony/event-dispatcher": "^3.0 || ^4.0",
+                "symfony/filesystem": "^3.0 || ^4.0",
+                "symfony/finder": "^3.0 || ^4.0",
+                "symfony/options-resolver": "^3.0 || ^4.0",
+                "symfony/polyfill-php70": "^1.0",
+                "symfony/polyfill-php72": "^1.4",
+                "symfony/process": "^3.0 || ^4.0",
+                "symfony/stopwatch": "^3.0 || ^4.0"
+            },
+            "conflict": {
+                "hhvm": "*"
+            },
+            "require-dev": {
+                "johnkary/phpunit-speedtrap": "^1.1 || ^2.0 || ^3.0",
+                "justinrainbow/json-schema": "^5.0",
+                "keradus/cli-executor": "^1.0",
+                "mikey179/vfsstream": "^1.6",
+                "php-coveralls/php-coveralls": "^2.0",
+                "php-cs-fixer/accessible-object": "^1.0",
+                "phpunit/phpunit": "^5.7.23 || ^6.4.3 || ^7.0",
+                "phpunitgoodpractices/traits": "^1.3.1",
+                "symfony/phpunit-bridge": "^3.2.2 || ^4.0"
+            },
+            "suggest": {
+                "ext-mbstring": "For handling non-UTF8 characters in cache signature.",
+                "symfony/polyfill-mbstring": "When enabling `ext-mbstring` is not possible."
+            },
+            "bin": [
+                "php-cs-fixer"
+            ],
+            "type": "application",
+            "extra": {
+                "branch-alias": {
+                    "dev-master": "2.11-dev"
+                }
+            },
+            "autoload": {
+                "psr-4": {
+                    "PhpCsFixer\\": "src/"
+                },
+                "classmap": [
+                    "tests/Test/AbstractFixerTestCase.php",
+                    "tests/Test/AbstractIntegrationCaseFactory.php",
+                    "tests/Test/AbstractIntegrationTestCase.php",
+                    "tests/Test/Assert/AssertTokensTrait.php",
+                    "tests/Test/Constraint/SameStringsConstraint.php",
+                    "tests/Test/Constraint/SameStringsConstraintForV5.php",
+                    "tests/Test/Constraint/SameStringsConstraintForV7.php",
+                    "tests/Test/IntegrationCase.php",
+                    "tests/Test/IntegrationCaseFactory.php",
+                    "tests/Test/IntegrationCaseFactoryInterface.php",
+                    "tests/Test/InternalIntegrationCaseFactory.php",
+                    "tests/TestCase.php"
+                ]
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "MIT"
+            ],
+            "authors": [
+                {
+                    "name": "Dariusz Rumiński",
+                    "email": "dariusz.ruminski@gmail.com"
+                },
+                {
+                    "name": "Fabien Potencier",
+                    "email": "fabien@symfony.com"
+                }
+            ],
+            "description": "A tool to automatically fix PHP code style",
+            "time": "2018-03-21T17:41:26+00:00"
+        },
+        {
+            "name": "paragonie/random_compat",
+            "version": "v2.0.12",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/paragonie/random_compat.git",
+                "reference": "258c89a6b97de7dfaf5b8c7607d0478e236b04fb"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/paragonie/random_compat/zipball/258c89a6b97de7dfaf5b8c7607d0478e236b04fb",
+                "reference": "258c89a6b97de7dfaf5b8c7607d0478e236b04fb",
+                "shasum": ""
+            },
+            "require": {
+                "php": ">=5.2.0"
+            },
+            "require-dev": {
+                "phpunit/phpunit": "4.*|5.*"
+            },
+            "suggest": {
+                "ext-libsodium": "Provides a modern crypto API that can be used to generate random bytes."
+            },
+            "type": "library",
+            "autoload": {
+                "files": [
+                    "lib/random.php"
+                ]
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "MIT"
+            ],
+            "authors": [
+                {
+                    "name": "Paragon Initiative Enterprises",
+                    "email": "security@paragonie.com",
+                    "homepage": "https://paragonie.com"
+                }
+            ],
+            "description": "PHP 5.x polyfill for random_bytes() and random_int() from PHP 7",
+            "keywords": [
+                "csprng",
+                "pseudorandom",
+                "random"
+            ],
+            "time": "2018-04-04T21:24:14+00:00"
+        },
+        {
+            "name": "php-cs-fixer/diff",
+            "version": "v1.3.0",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/PHP-CS-Fixer/diff.git",
+                "reference": "78bb099e9c16361126c86ce82ec4405ebab8e756"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/PHP-CS-Fixer/diff/zipball/78bb099e9c16361126c86ce82ec4405ebab8e756",
+                "reference": "78bb099e9c16361126c86ce82ec4405ebab8e756",
+                "shasum": ""
+            },
+            "require": {
+                "php": "^5.6 || ^7.0"
+            },
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+                    "homepage": "https://symfony.com/contributors"
+                }
+            ],
+            "description": "Symfony Yaml Component",
+            "homepage": "https://symfony.com",
+            "time": "2018-04-03T05:14:20+00:00"
+        }
+    ],
+    "packages-dev": [],
+    "aliases": [],
+    "minimum-stability": "stable",
+    "stability-flags": [],
+    "prefer-stable": false,
+    "prefer-lowest": false,
+    "platform": [],
+    "platform-dev": []
+}