From fe8b59ecb349e5b2742f634d46dc87a4c2d4362a Mon Sep 17 00:00:00 2001
From: Christopher Pitt <cgpitt@gmail.com>
Date: Fri, 28 Apr 2017 13:58:53 +0200
Subject: [PATCH] WIP

---
 .gitignore    |    4 +
 composer.json |    8 +
 composer.lock | 1311 +++++++++++++++++++++++++++++++++++++++++++++++++
 examples.pre  |   17 +
 functions.pre |   23 +
 loader.php    |    5 +
 macros.pre    |   45 ++
 paths.php     |    3 +
 8 files changed, 1416 insertions(+)
 create mode 100644 .gitignore
 create mode 100644 composer.json
 create mode 100644 composer.lock
 create mode 100644 examples.pre
 create mode 100644 functions.pre
 create mode 100644 loader.php
 create mode 100644 macros.pre
 create mode 100644 paths.php

diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..c829173
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,4 @@
+.idea
+examples.php
+functions.php
+vendor
diff --git a/composer.json b/composer.json
new file mode 100644
index 0000000..f70cf66
--- /dev/null
+++ b/composer.json
@@ -0,0 +1,8 @@
+{
+    "require": {
+        "pre/short-closures": "^0.4.0"
+    },
+    "autoload": {
+        "files": ["paths.php"]
+    }
+}
diff --git a/composer.lock b/composer.lock
new file mode 100644
index 0000000..76cd8e8
--- /dev/null
+++ b/composer.lock
@@ -0,0 +1,1311 @@
+{
+    "_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": "20f423846e7de95141c97b57b558942d",
+    "packages": [
+        {
+            "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": "v2.3.1",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/FriendsOfPHP/PHP-CS-Fixer.git",
+                "reference": "d5257f7433bb490299c4f300d95598fd911a8ab0"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/FriendsOfPHP/PHP-CS-Fixer/zipball/d5257f7433bb490299c4f300d95598fd911a8ab0",
+                "reference": "d5257f7433bb490299c4f300d95598fd911a8ab0",
+                "shasum": ""
+            },
+            "require": {
+                "doctrine/annotations": "^1.2",
+                "ext-tokenizer": "*",
+                "php": "^5.6 || >=7.0 <7.2",
+                "sebastian/diff": "^1.4",
+                "symfony/console": "^3.0",
+                "symfony/event-dispatcher": "^3.0",
+                "symfony/filesystem": "^3.0",
+                "symfony/finder": "^3.0",
+                "symfony/options-resolver": "^3.0",
+                "symfony/polyfill-php54": "^1.0",
+                "symfony/polyfill-php55": "^1.3",
+                "symfony/polyfill-php70": "^1.0",
+                "symfony/polyfill-xml": "^1.3",
+                "symfony/process": "^3.0",
+                "symfony/stopwatch": "^3.0"
+            },
+            "conflict": {
+                "hhvm": "<3.18"
+            },
+            "require-dev": {
+                "gecko-packages/gecko-php-unit": "^2.0",
+                "justinrainbow/json-schema": "^5.0",
+                "phpunit/phpunit": "^4.5 || ^5.0",
+                "satooshi/php-coveralls": "^1.0",
+                "symfony/phpunit-bridge": "^3.2.2"
+            },
+            "suggest": {
+                "ext-mbstring": "For handling non-UTF8 characters in cache signature.",
+                "ext-xml": "For better performance.",
+                "symfony/polyfill-mbstring": "When enabling `ext-mbstring` is not possible."
+            },
+            "bin": [
+                "php-cs-fixer"
+            ],
+            "type": "application",
+            "extra": {
+                "branch-alias": {
+                    "dev-master": "2.3-dev"
+                }
+            },
+            "autoload": {
+                "psr-4": {
+                    "PhpCsFixer\\": "src/"
+                }
+            },
+            "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": "2017-04-25T20:50:30+00:00"
+        },
+        {
+            "name": "ircmaxell/password-compat",
+            "version": "v1.0.4",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/ircmaxell/password_compat.git",
+                "reference": "5c5cde8822a69545767f7c7f3058cb15ff84614c"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/ircmaxell/password_compat/zipball/5c5cde8822a69545767f7c7f3058cb15ff84614c",
+                "reference": "5c5cde8822a69545767f7c7f3058cb15ff84614c",
+                "shasum": ""
+            },
+            "require-dev": {
+                "phpunit/phpunit": "4.*"
+            },
+            "type": "library",
+            "autoload": {
+                "files": [
+                    "lib/password.php"
+                ]
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "MIT"
+            ],
+            "authors": [
+                {
+                    "name": "Anthony Ferrara",
+                    "email": "ircmaxell@php.net",
+                    "homepage": "http://blog.ircmaxell.com"
+                }
+            ],
+            "description": "A compatibility library for the proposed simplified password hashing algorithm: https://wiki.php.net/rfc/password_hash",
+            "homepage": "https://github.com/ircmaxell/password_compat",
+            "keywords": [
+                "hashing",
+                "password"
+            ],
+            "time": "2014-11-20T16:49:30+00:00"
+        },
+        {
+            "name": "nikic/php-parser",
+            "version": "v3.0.5",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/nikic/PHP-Parser.git",
+                "reference": "2b9e2f71b722f7c53918ab0c25f7646c2013f17d"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/nikic/PHP-Parser/zipball/2b9e2f71b722f7c53918ab0c25f7646c2013f17d",
+                "reference": "2b9e2f71b722f7c53918ab0c25f7646c2013f17d",
+                "shasum": ""
+            },
+            "require": {
+                "ext-tokenizer": "*",
+                "php": ">=5.5"
+            },
+            "require-dev": {
+                "phpunit/phpunit": "~4.0|~5.0"
+            },
+            "bin": [
+                "bin/php-parse"
+            ],
+            "type": "library",
+            "extra": {
+                "branch-alias": {
+                    "dev-master": "3.0-dev"
+                }
+            },
+            "autoload": {
+                "psr-4": {
+                    "PhpParser\\": "lib/PhpParser"
+                }
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "BSD-3-Clause"
+            ],
+            "authors": [
+                {
+                    "name": "Nikita Popov"
+                }
+            ],
+            "description": "A PHP parser written in PHP",
+            "keywords": [
+                "parser",
+                "php"
+            ],
+            "time": "2017-03-05T18:23:57+00:00"
+        },
+        {
+            "name": "paragonie/random_compat",
+            "version": "v2.0.10",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/paragonie/random_compat.git",
+                "reference": "634bae8e911eefa89c1abfbf1b66da679ac8f54d"
+            },
+            "dist": {
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+                "shasum": ""
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+                "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": [
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+                    "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": "2017-03-13T16:27:32+00:00"
+        },
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+            "version": "0.6.1",
+            "source": {
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+                "url": "https://github.com/preprocess/pre-plugin.git",
+                "reference": "71580c5bf80dc3139b1df7ae4e55f6aae6ee0cab"
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+                "reference": "71580c5bf80dc3139b1df7ae4e55f6aae6ee0cab",
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+            "require": {
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+                "friendsofphp/php-cs-fixer": "^2.0",
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+            },
+            "require-dev": {
+                "composer/composer": "^1.3",
+                "phpunit/phpunit": "^5.0"
+            },
+            "type": "composer-plugin",
+            "extra": {
+                "class": [
+                    "Pre\\Plugin"
+                ]
+            },
+            "autoload": {
+                "files": [
+                    "src/autoload.php",
+                    "src/functions.php",
+                    "src/expanders.php",
+                    "src/bootstrap.php"
+                ],
+                "psr-4": {
+                    "Pre\\": "src"
+                }
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "MIT"
+            ],
+            "time": "2017-03-25T16:21:48+00:00"
+        },
+        {
+            "name": "pre/short-closures",
+            "version": "0.4.0",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/preprocess/pre-short-closures.git",
+                "reference": "b8278fed79028e09d56d2064b4d254bdc5f64a82"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/preprocess/pre-short-closures/zipball/b8278fed79028e09d56d2064b4d254bdc5f64a82",
+                "reference": "b8278fed79028e09d56d2064b4d254bdc5f64a82",
+                "shasum": ""
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+            "require": {
+                "pre/plugin": "^0.6"
+            },
+            "require-dev": {
+                "phpunit/phpunit": "^5.0"
+            },
+            "type": "library",
+            "autoload": {
+                "files": [
+                    "src/bootstrap.php"
+                ]
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "MIT"
+            ],
+            "time": "2017-03-24T14:44:38+00:00"
+        },
+        {
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+            "version": "1.0.2",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/php-fig/log.git",
+                "reference": "4ebe3a8bf773a19edfe0a84b6585ba3d401b724d"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/php-fig/log/zipball/4ebe3a8bf773a19edfe0a84b6585ba3d401b724d",
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+                "shasum": ""
+            },
+            "require": {
+                "php": ">=5.3.0"
+            },
+            "type": "library",
+            "extra": {
+                "branch-alias": {
+                    "dev-master": "1.0.x-dev"
+                }
+            },
+            "autoload": {
+                "psr-4": {
+                    "Psr\\Log\\": "Psr/Log/"
+                }
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "MIT"
+            ],
+            "authors": [
+                {
+                    "name": "PHP-FIG",
+                    "homepage": "http://www.php-fig.org/"
+                }
+            ],
+            "description": "Common interface for logging libraries",
+            "homepage": "https://github.com/php-fig/log",
+            "keywords": [
+                "log",
+                "psr",
+                "psr-3"
+            ],
+            "time": "2016-10-10T12:19:37+00:00"
+        },
+        {
+            "name": "sebastian/diff",
+            "version": "1.4.1",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/sebastianbergmann/diff.git",
+                "reference": "13edfd8706462032c2f52b4b862974dd46b71c9e"
+            },
+            "dist": {
+                "type": "zip",
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+                "reference": "13edfd8706462032c2f52b4b862974dd46b71c9e",
+                "shasum": ""
+            },
+            "require": {
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+            "require-dev": {
+                "phpunit/phpunit": "~4.8"
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+            "type": "library",
+            "extra": {
+                "branch-alias": {
+                    "dev-master": "1.4-dev"
+                }
+            },
+            "autoload": {
+                "classmap": [
+                    "src/"
+                ]
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "BSD-3-Clause"
+            ],
+            "authors": [
+                {
+                    "name": "Kore Nordmann",
+                    "email": "mail@kore-nordmann.de"
+                },
+                {
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+                    "email": "sebastian@phpunit.de"
+                }
+            ],
+            "description": "Diff implementation",
+            "homepage": "https://github.com/sebastianbergmann/diff",
+            "keywords": [
+                "diff"
+            ],
+            "time": "2015-12-08T07:14:41+00:00"
+        },
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+            "version": "v3.2.7",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/symfony/console.git",
+                "reference": "c30243cc51f726812be3551316b109a2f5deaf8d"
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+                "url": "https://api.github.com/repos/symfony/console/zipball/c30243cc51f726812be3551316b109a2f5deaf8d",
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+                "symfony/event-dispatcher": "~2.8|~3.0",
+                "symfony/filesystem": "~2.8|~3.0",
+                "symfony/process": "~2.8|~3.0"
+            },
+            "suggest": {
+                "psr/log": "For using the console logger",
+                "symfony/event-dispatcher": "",
+                "symfony/filesystem": "",
+                "symfony/process": ""
+            },
+            "type": "library",
+            "extra": {
+                "branch-alias": {
+                    "dev-master": "3.2-dev"
+                }
+            },
+            "autoload": {
+                "psr-4": {
+                    "Symfony\\Component\\Console\\": ""
+                },
+                "exclude-from-classmap": [
+                    "/Tests/"
+                ]
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "MIT"
+            ],
+            "authors": [
+                {
+                    "name": "Fabien Potencier",
+                    "email": "fabien@symfony.com"
+                },
+                {
+                    "name": "Symfony Community",
+                    "homepage": "https://symfony.com/contributors"
+                }
+            ],
+            "description": "Symfony Console Component",
+            "homepage": "https://symfony.com",
+            "time": "2017-04-04T14:33:42+00:00"
+        },
+        {
+            "name": "symfony/debug",
+            "version": "v3.2.7",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/symfony/debug.git",
+                "reference": "56f613406446a4a0a031475cfd0a01751de22659"
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+            "dist": {
+                "type": "zip",
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+                "shasum": ""
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+            "conflict": {
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+            "require-dev": {
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+                "symfony/http-kernel": "~2.8|~3.0"
+            },
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diff --git a/examples.pre b/examples.pre
new file mode 100644
index 0000000..b5fb1dd
--- /dev/null
+++ b/examples.pre
@@ -0,0 +1,17 @@
+<?php
+
+process .."/functions.pre";
+
+$map = "array_map" ↤ function($item) {
+  return strtoupper($item);
+};
+
+$process = $map ↦ "array_reverse" ↦ function($data) {
+  return array_map(function($item) {
+    return $item . " | thing";
+  }, $data);
+};
+
+$processed = $process(["foo", "bar", "baz"]);
+
+print_r($processed);
diff --git a/functions.pre b/functions.pre
new file mode 100644
index 0000000..fccb994
--- /dev/null
+++ b/functions.pre
@@ -0,0 +1,23 @@
+<?php
+
+function partial($function, ...$carried) {
+    return (...$called) => {
+        return call_user_func_array($function, array_merge($carried, $called));
+    };
+}
+
+function identity($value) {
+  return $value;
+}
+
+function compose(...$functions) {
+  return array_reduce(
+    $functions,
+    ($chain, $function) => {
+      return ($input) => {
+        return $function($chain($input));
+      };
+    },
+    "identity"
+  );
+}
diff --git a/loader.php b/loader.php
new file mode 100644
index 0000000..8b60ccc
--- /dev/null
+++ b/loader.php
@@ -0,0 +1,5 @@
+<?php
+
+require __DIR__ . "/vendor/autoload.php";
+
+Pre\processAndRequire(__DIR__ . "/examples.pre");
diff --git a/macros.pre b/macros.pre
new file mode 100644
index 0000000..9377bb8
--- /dev/null
+++ b/macros.pre
@@ -0,0 +1,45 @@
+<?php
+
+macro {
+  ·chain(
+    ·either(
+      ·token(T_VARIABLE), // $func,
+      ·token(T_CONSTANT_ENCAPSED_STRING), // "array_map"
+      ·closure() // function($foo) { return $bar; }
+    )·first,
+    ·repeat(
+      ·chain(
+        ·rtoken("/↦/"),
+        ·either(
+          ·token(T_VARIABLE), // $func,
+          ·token(T_CONSTANT_ENCAPSED_STRING), // "array_map"
+          ·closure() // function($foo) { return $bar; }
+        )·item
+      )
+    )·rest
+  )
+} >> {
+  compose(·first, ·rest ···(, ){ ·item })
+}
+
+macro {
+  ·chain(
+    ·either(
+      ·token(T_VARIABLE), // $func,
+      ·token(T_CONSTANT_ENCAPSED_STRING), // "array_map"
+      ·closure() // function($foo) { return $bar; }
+    )·first,
+    ·repeat(
+      ·chain(
+        ·rtoken("/↤/"),
+        ·either(
+          ·token(T_VARIABLE), // $func,
+          ·token(T_CONSTANT_ENCAPSED_STRING), // "array_map"
+          ·closure() // function($foo) { return $bar; }
+        )·item
+      )
+    )·rest
+  )
+} >> {
+  partial(·first, ·rest ···(, ){ ·item })
+}
\ No newline at end of file
diff --git a/paths.php b/paths.php
new file mode 100644
index 0000000..7c5622d
--- /dev/null
+++ b/paths.php
@@ -0,0 +1,3 @@
+<?php
+
+Pre\addMacroPath(__DIR__ . "/macros.pre");