From c8e56149469e9c0db1e153a98e14c4448fecbccf Mon Sep 17 00:00:00 2001
From: Greg Anderson <greg.1.anderson@greenknowe.org>
Date: Thu, 21 Dec 2017 11:48:41 -0800
Subject: [PATCH] Support PHP 5.4 and later.

---
 composer.json    |    2 +-
 composer.lock    | 1022 +++++++++++++---------------------------------
 src/Expander.php |    6 +-
 3 files changed, 279 insertions(+), 751 deletions(-)

diff --git a/composer.json b/composer.json
index a1cb764..e1b692b 100644
--- a/composer.json
+++ b/composer.json
@@ -19,7 +19,7 @@
         }
     },
     "require-dev": {
-        "phpunit/phpunit": "^5.5.4",
+        "phpunit/phpunit": "^4|^5.5.4",
         "satooshi/php-coveralls": "^1.0.2|dev-master",
         "greg-1-anderson/composer-test-scenarios": "^1",
         "squizlabs/php_codesniffer": "^2.7"
diff --git a/composer.lock b/composer.lock
index 24d8131..2019acc 100644
--- a/composer.lock
+++ b/composer.lock
@@ -4,7 +4,7 @@
         "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": "22e37be801df5bfee2fac757c63771fc",
+    "content-hash": "a297a5ed4d1b90e8a7dfadfcc0845cc8",
     "packages": [
         {
             "name": "dflydev/dot-access-data",
@@ -69,32 +69,32 @@
     "packages-dev": [
         {
             "name": "doctrine/instantiator",
-            "version": "1.1.0",
+            "version": "1.0.5",
             "source": {
                 "type": "git",
                 "url": "https://github.com/doctrine/instantiator.git",
-                "reference": "185b8868aa9bf7159f5f953ed5afb2d7fcdc3bda"
+                "reference": "8e884e78f9f0eb1329e445619e04456e64d8051d"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/doctrine/instantiator/zipball/185b8868aa9bf7159f5f953ed5afb2d7fcdc3bda",
-                "reference": "185b8868aa9bf7159f5f953ed5afb2d7fcdc3bda",
+                "url": "https://api.github.com/repos/doctrine/instantiator/zipball/8e884e78f9f0eb1329e445619e04456e64d8051d",
+                "reference": "8e884e78f9f0eb1329e445619e04456e64d8051d",
                 "shasum": ""
             },
             "require": {
-                "php": "^7.1"
+                "php": ">=5.3,<8.0-DEV"
             },
             "require-dev": {
                 "athletic/athletic": "~0.1.8",
                 "ext-pdo": "*",
                 "ext-phar": "*",
-                "phpunit/phpunit": "^6.2.3",
-                "squizlabs/php_codesniffer": "^3.0.2"
+                "phpunit/phpunit": "~4.0",
+                "squizlabs/php_codesniffer": "~2.0"
             },
             "type": "library",
             "extra": {
                 "branch-alias": {
-                    "dev-master": "1.2.x-dev"
+                    "dev-master": "1.0.x-dev"
                 }
             },
             "autoload": {
@@ -119,7 +119,7 @@
                 "constructor",
                 "instantiate"
             ],
-            "time": "2017-07-22T11:58:36+00:00"
+            "time": "2015-06-14T21:17:01+00:00"
         },
         {
             "name": "greg-1-anderson/composer-test-scenarios",
@@ -154,44 +154,70 @@
             "time": "2017-12-13T18:41:24+00:00"
         },
         {
-            "name": "guzzlehttp/guzzle",
-            "version": "6.3.0",
+            "name": "guzzle/guzzle",
+            "version": "v3.9.3",
             "source": {
                 "type": "git",
-                "url": "https://github.com/guzzle/guzzle.git",
-                "reference": "f4db5a78a5ea468d4831de7f0bf9d9415e348699"
+                "url": "https://github.com/guzzle/guzzle3.git",
+                "reference": "0645b70d953bc1c067bbc8d5bc53194706b628d9"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/guzzle/guzzle/zipball/f4db5a78a5ea468d4831de7f0bf9d9415e348699",
-                "reference": "f4db5a78a5ea468d4831de7f0bf9d9415e348699",
+                "url": "https://api.github.com/repos/guzzle/guzzle3/zipball/0645b70d953bc1c067bbc8d5bc53194706b628d9",
+                "reference": "0645b70d953bc1c067bbc8d5bc53194706b628d9",
                 "shasum": ""
             },
             "require": {
-                "guzzlehttp/promises": "^1.0",
-                "guzzlehttp/psr7": "^1.4",
-                "php": ">=5.5"
+                "ext-curl": "*",
+                "php": ">=5.3.3",
+                "symfony/event-dispatcher": "~2.1"
+            },
+            "replace": {
+                "guzzle/batch": "self.version",
+                "guzzle/cache": "self.version",
+                "guzzle/common": "self.version",
+                "guzzle/http": "self.version",
+                "guzzle/inflection": "self.version",
+                "guzzle/iterator": "self.version",
+                "guzzle/log": "self.version",
+                "guzzle/parser": "self.version",
+                "guzzle/plugin": "self.version",
+                "guzzle/plugin-async": "self.version",
+                "guzzle/plugin-backoff": "self.version",
+                "guzzle/plugin-cache": "self.version",
+                "guzzle/plugin-cookie": "self.version",
+                "guzzle/plugin-curlauth": "self.version",
+                "guzzle/plugin-error-response": "self.version",
+                "guzzle/plugin-history": "self.version",
+                "guzzle/plugin-log": "self.version",
+                "guzzle/plugin-md5": "self.version",
+                "guzzle/plugin-mock": "self.version",
+                "guzzle/plugin-oauth": "self.version",
+                "guzzle/service": "self.version",
+                "guzzle/stream": "self.version"
             },
             "require-dev": {
-                "ext-curl": "*",
-                "phpunit/phpunit": "^4.0 || ^5.0",
-                "psr/log": "^1.0"
+                "doctrine/cache": "~1.3",
+                "monolog/monolog": "~1.0",
+                "phpunit/phpunit": "3.7.*",
+                "psr/log": "~1.0",
+                "symfony/class-loader": "~2.1",
+                "zendframework/zend-cache": "2.*,<2.3",
+                "zendframework/zend-log": "2.*,<2.3"
             },
             "suggest": {
-                "psr/log": "Required for using the Log middleware"
+                "guzzlehttp/guzzle": "Guzzle 5 has moved to a new package name. The package you have installed, Guzzle 3, is deprecated."
             },
             "type": "library",
             "extra": {
                 "branch-alias": {
-                    "dev-master": "6.2-dev"
+                    "dev-master": "3.9-dev"
                 }
             },
             "autoload": {
-                "files": [
-                    "src/functions_include.php"
-                ],
-                "psr-4": {
-                    "GuzzleHttp\\": "src/"
+                "psr-0": {
+                    "Guzzle": "src/",
+                    "Guzzle\\Tests": "tests/"
                 }
             },
             "notification-url": "https://packagist.org/downloads/",
@@ -203,9 +229,13 @@
                     "name": "Michael Dowling",
                     "email": "mtdowling@gmail.com",
                     "homepage": "https://github.com/mtdowling"
+                },
+                {
+                    "name": "Guzzle Community",
+                    "homepage": "https://github.com/guzzle/guzzle/contributors"
                 }
             ],
-            "description": "Guzzle is a PHP HTTP client library",
+            "description": "PHP HTTP client. This library is deprecated in favor of https://packagist.org/packages/guzzlehttp/guzzle",
             "homepage": "http://guzzlephp.org/",
             "keywords": [
                 "client",
@@ -216,305 +246,42 @@
                 "rest",
                 "web service"
             ],
-            "time": "2017-06-22T18:50:49+00:00"
-        },
-        {
-            "name": "guzzlehttp/promises",
-            "version": "v1.3.1",
-            "source": {
-                "type": "git",
-                "url": "https://github.com/guzzle/promises.git",
-                "reference": "a59da6cf61d80060647ff4d3eb2c03a2bc694646"
-            },
-            "dist": {
-                "type": "zip",
-                "url": "https://api.github.com/repos/guzzle/promises/zipball/a59da6cf61d80060647ff4d3eb2c03a2bc694646",
-                "reference": "a59da6cf61d80060647ff4d3eb2c03a2bc694646",
-                "shasum": ""
-            },
-            "require": {
-                "php": ">=5.5.0"
-            },
-            "require-dev": {
-                "phpunit/phpunit": "^4.0"
-            },
-            "type": "library",
-            "extra": {
-                "branch-alias": {
-                    "dev-master": "1.4-dev"
-                }
-            },
-            "autoload": {
-                "psr-4": {
-                    "GuzzleHttp\\Promise\\": "src/"
-                },
-                "files": [
-                    "src/functions_include.php"
-                ]
-            },
-            "notification-url": "https://packagist.org/downloads/",
-            "license": [
-                "MIT"
-            ],
-            "authors": [
-                {
-                    "name": "Michael Dowling",
-                    "email": "mtdowling@gmail.com",
-                    "homepage": "https://github.com/mtdowling"
-                }
-            ],
-            "description": "Guzzle promises library",
-            "keywords": [
-                "promise"
-            ],
-            "time": "2016-12-20T10:07:11+00:00"
-        },
-        {
-            "name": "guzzlehttp/psr7",
-            "version": "1.4.2",
-            "source": {
-                "type": "git",
-                "url": "https://github.com/guzzle/psr7.git",
-                "reference": "f5b8a8512e2b58b0071a7280e39f14f72e05d87c"
-            },
-            "dist": {
-                "type": "zip",
-                "url": "https://api.github.com/repos/guzzle/psr7/zipball/f5b8a8512e2b58b0071a7280e39f14f72e05d87c",
-                "reference": "f5b8a8512e2b58b0071a7280e39f14f72e05d87c",
-                "shasum": ""
-            },
-            "require": {
-                "php": ">=5.4.0",
-                "psr/http-message": "~1.0"
-            },
-            "provide": {
-                "psr/http-message-implementation": "1.0"
-            },
-            "require-dev": {
-                "phpunit/phpunit": "~4.0"
-            },
-            "type": "library",
-            "extra": {
-                "branch-alias": {
-                    "dev-master": "1.4-dev"
-                }
-            },
-            "autoload": {
-                "psr-4": {
-                    "GuzzleHttp\\Psr7\\": "src/"
-                },
-                "files": [
-                    "src/functions_include.php"
-                ]
-            },
-            "notification-url": "https://packagist.org/downloads/",
-            "license": [
-                "MIT"
-            ],
-            "authors": [
-                {
-                    "name": "Michael Dowling",
-                    "email": "mtdowling@gmail.com",
-                    "homepage": "https://github.com/mtdowling"
-                },
-                {
-                    "name": "Tobias Schultze",
-                    "homepage": "https://github.com/Tobion"
-                }
-            ],
-            "description": "PSR-7 message implementation that also provides common utility methods",
-            "keywords": [
-                "http",
-                "message",
-                "request",
-                "response",
-                "stream",
-                "uri",
-                "url"
-            ],
-            "time": "2017-03-20T17:10:46+00:00"
-        },
-        {
-            "name": "myclabs/deep-copy",
-            "version": "1.7.0",
-            "source": {
-                "type": "git",
-                "url": "https://github.com/myclabs/DeepCopy.git",
-                "reference": "3b8a3a99ba1f6a3952ac2747d989303cbd6b7a3e"
-            },
-            "dist": {
-                "type": "zip",
-                "url": "https://api.github.com/repos/myclabs/DeepCopy/zipball/3b8a3a99ba1f6a3952ac2747d989303cbd6b7a3e",
-                "reference": "3b8a3a99ba1f6a3952ac2747d989303cbd6b7a3e",
-                "shasum": ""
-            },
-            "require": {
-                "php": "^5.6 || ^7.0"
-            },
-            "require-dev": {
-                "doctrine/collections": "^1.0",
-                "doctrine/common": "^2.6",
-                "phpunit/phpunit": "^4.1"
-            },
-            "type": "library",
-            "autoload": {
-                "psr-4": {
-                    "DeepCopy\\": "src/DeepCopy/"
-                },
-                "files": [
-                    "src/DeepCopy/deep_copy.php"
-                ]
-            },
-            "notification-url": "https://packagist.org/downloads/",
-            "license": [
-                "MIT"
-            ],
-            "description": "Create deep copies (clones) of your objects",
-            "keywords": [
-                "clone",
-                "copy",
-                "duplicate",
-                "object",
-                "object graph"
-            ],
-            "time": "2017-10-19T19:58:43+00:00"
-        },
-        {
-            "name": "phpdocumentor/reflection-common",
-            "version": "1.0.1",
-            "source": {
-                "type": "git",
-                "url": "https://github.com/phpDocumentor/ReflectionCommon.git",
-                "reference": "21bdeb5f65d7ebf9f43b1b25d404f87deab5bfb6"
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-                "shasum": ""
-            },
-            "require": {
-                "php": ">=5.5"
-            },
-            "require-dev": {
-                "phpunit/phpunit": "^4.6"
-            },
-            "type": "library",
-            "extra": {
-                "branch-alias": {
-                    "dev-master": "1.0.x-dev"
-                }
-            },
-            "autoload": {
-                "psr-4": {
-                    "phpDocumentor\\Reflection\\": [
-                        "src"
-                    ]
-                }
-            },
-            "notification-url": "https://packagist.org/downloads/",
-            "license": [
-                "MIT"
-            ],
-            "authors": [
-                {
-                    "name": "Jaap van Otterdijk",
-                    "email": "opensource@ijaap.nl"
-                }
-            ],
-            "description": "Common reflection classes used by phpdocumentor to reflect the code structure",
-            "homepage": "http://www.phpdoc.org",
-            "keywords": [
-                "FQSEN",
-                "phpDocumentor",
-                "phpdoc",
-                "reflection",
-                "static analysis"
-            ],
-            "time": "2017-09-11T18:02:19+00:00"
+            "abandoned": "guzzlehttp/guzzle",
+            "time": "2015-03-18T18:23:50+00:00"
         },
         {
             "name": "phpdocumentor/reflection-docblock",
-            "version": "4.2.0",
+            "version": "2.0.5",
             "source": {
                 "type": "git",
                 "url": "https://github.com/phpDocumentor/ReflectionDocBlock.git",
-                "reference": "66465776cfc249844bde6d117abff1d22e06c2da"
+                "reference": "e6a969a640b00d8daa3c66518b0405fb41ae0c4b"
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-                "reference": "66465776cfc249844bde6d117abff1d22e06c2da",
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+                "reference": "e6a969a640b00d8daa3c66518b0405fb41ae0c4b",
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             },
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-                "phpdocumentor/reflection-common": "^1.0.0",
-                "phpdocumentor/type-resolver": "^0.4.0",
-                "webmozart/assert": "^1.0"
+                "php": ">=5.3.3"
             },
             "require-dev": {
-                "doctrine/instantiator": "~1.0.5",
-                "mockery/mockery": "^1.0",
-                "phpunit/phpunit": "^6.4"
-            },
-            "type": "library",
-            "extra": {
-                "branch-alias": {
-                    "dev-master": "4.x-dev"
-                }
-            },
-            "autoload": {
-                "psr-4": {
-                    "phpDocumentor\\Reflection\\": [
-                        "src/"
-                    ]
-                }
-            },
-            "notification-url": "https://packagist.org/downloads/",
-            "license": [
-                "MIT"
-            ],
-            "authors": [
-                {
-                    "name": "Mike van Riel",
-                    "email": "me@mikevanriel.com"
-                }
-            ],
-            "description": "With this component, a library can provide support for annotations via DocBlocks or otherwise retrieve information that is embedded in a DocBlock.",
-            "time": "2017-11-27T17:38:31+00:00"
-        },
-        {
-            "name": "phpdocumentor/type-resolver",
-            "version": "0.4.0",
-            "source": {
-                "type": "git",
-                "url": "https://github.com/phpDocumentor/TypeResolver.git",
-                "reference": "9c977708995954784726e25d0cd1dddf4e65b0f7"
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-                "url": "https://api.github.com/repos/phpDocumentor/TypeResolver/zipball/9c977708995954784726e25d0cd1dddf4e65b0f7",
-                "reference": "9c977708995954784726e25d0cd1dddf4e65b0f7",
-                "shasum": ""
-            },
-            "require": {
-                "php": "^5.5 || ^7.0",
-                "phpdocumentor/reflection-common": "^1.0"
+                "phpunit/phpunit": "~4.0"
             },
-            "require-dev": {
-                "mockery/mockery": "^0.9.4",
-                "phpunit/phpunit": "^5.2||^4.8.24"
+            "suggest": {
+                "dflydev/markdown": "~1.0",
+                "erusev/parsedown": "~1.0"
             },
             "type": "library",
             "extra": {
                 "branch-alias": {
-                    "dev-master": "1.0.x-dev"
+                    "dev-master": "2.0.x-dev"
                 }
             },
             "autoload": {
-                "psr-4": {
-                    "phpDocumentor\\Reflection\\": [
+                "psr-0": {
+                    "phpDocumentor": [
                         "src/"
                     ]
                 }
@@ -526,10 +293,10 @@
             "authors": [
                 {
                     "name": "Mike van Riel",
-                    "email": "me@mikevanriel.com"
+                    "email": "mike.vanriel@naenius.com"
                 }
             ],
-            "time": "2017-07-14T14:27:02+00:00"
+            "time": "2016-01-25T08:17:30+00:00"
         },
         {
             "name": "phpspec/prophecy",
@@ -596,40 +363,39 @@
         },
         {
             "name": "phpunit/php-code-coverage",
-            "version": "4.0.8",
+            "version": "2.2.4",
             "source": {
                 "type": "git",
                 "url": "https://github.com/sebastianbergmann/php-code-coverage.git",
-                "reference": "ef7b2f56815df854e66ceaee8ebe9393ae36a40d"
+                "reference": "eabf68b476ac7d0f73793aada060f1c1a9bf8979"
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-                "reference": "ef7b2f56815df854e66ceaee8ebe9393ae36a40d",
+                "url": "https://api.github.com/repos/sebastianbergmann/php-code-coverage/zipball/eabf68b476ac7d0f73793aada060f1c1a9bf8979",
+                "reference": "eabf68b476ac7d0f73793aada060f1c1a9bf8979",
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-                "ext-xmlwriter": "*",
-                "php": "^5.6 || ^7.0",
-                "phpunit/php-file-iterator": "^1.3",
-                "phpunit/php-text-template": "^1.2",
-                "phpunit/php-token-stream": "^1.4.2 || ^2.0",
-                "sebastian/code-unit-reverse-lookup": "^1.0",
-                "sebastian/environment": "^1.3.2 || ^2.0",
-                "sebastian/version": "^1.0 || ^2.0"
+                "php": ">=5.3.3",
+                "phpunit/php-file-iterator": "~1.3",
+                "phpunit/php-text-template": "~1.2",
+                "phpunit/php-token-stream": "~1.3",
+                "sebastian/environment": "^1.3.2",
+                "sebastian/version": "~1.0"
             },
             "require-dev": {
-                "ext-xdebug": "^2.1.4",
-                "phpunit/phpunit": "^5.7"
+                "ext-xdebug": ">=2.1.4",
+                "phpunit/phpunit": "~4"
             },
             "suggest": {
-                "ext-xdebug": "^2.5.1"
+                "ext-dom": "*",
+                "ext-xdebug": ">=2.2.1",
+                "ext-xmlwriter": "*"
             },
             "type": "library",
             "extra": {
                 "branch-alias": {
-                    "dev-master": "4.0.x-dev"
+                    "dev-master": "2.2.x-dev"
                 }
             },
             "autoload": {
@@ -655,7 +421,7 @@
                 "testing",
                 "xunit"
             ],
-            "time": "2017-04-02T07:44:40+00:00"
+            "time": "2015-10-06T15:47:00+00:00"
         },
         {
             "name": "phpunit/php-file-iterator",
@@ -796,29 +562,29 @@
         },
         {
             "name": "phpunit/php-token-stream",
-            "version": "2.0.2",
+            "version": "1.4.12",
             "source": {
                 "type": "git",
                 "url": "https://github.com/sebastianbergmann/php-token-stream.git",
-                "reference": "791198a2c6254db10131eecfe8c06670700904db"
+                "reference": "1ce90ba27c42e4e44e6d8458241466380b51fa16"
             },
             "dist": {
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+                "reference": "58b3a85e7999757d6ad81c787a1fbf5ff6c628c6",
                 "shasum": ""
             },
-            "require": {
-                "php": ">=5.6"
-            },
             "type": "library",
-            "extra": {
-                "branch-alias": {
-                    "dev-master": "2.0.x-dev"
-                }
-            },
             "autoload": {
                 "classmap": [
                     "src/"
@@ -1675,7 +1215,7 @@
             ],
             "description": "Library that helps with managing the version number of Git-hosted PHP projects",
             "homepage": "https://github.com/sebastianbergmann/version",
-            "time": "2016-10-03T07:35:21+00:00"
+            "time": "2015-06-21T13:59:46+00:00"
         },
         {
             "name": "squizlabs/php_codesniffer",
@@ -1757,30 +1297,24 @@
         },
         {
             "name": "symfony/config",
-            "version": "v3.4.2",
+            "version": "v2.8.32",
             "source": {
                 "type": "git",
                 "url": "https://github.com/symfony/config.git",
-                "reference": "e57211b88aa889fefac1cb36866db04100b0f21c"
+                "reference": "f4f3f1d7090c464434bbbc3e8aa2b41149c59196"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/symfony/config/zipball/e57211b88aa889fefac1cb36866db04100b0f21c",
-                "reference": "e57211b88aa889fefac1cb36866db04100b0f21c",
+                "url": "https://api.github.com/repos/symfony/config/zipball/f4f3f1d7090c464434bbbc3e8aa2b41149c59196",
+                "reference": "f4f3f1d7090c464434bbbc3e8aa2b41149c59196",
                 "shasum": ""
             },
             "require": {
-                "php": "^5.5.9|>=7.0.8",
-                "symfony/filesystem": "~2.8|~3.0|~4.0"
-            },
-            "conflict": {
-                "symfony/dependency-injection": "<3.3",
-                "symfony/finder": "<3.3"
+                "php": ">=5.3.9",
+                "symfony/filesystem": "~2.3|~3.0.0"
             },
             "require-dev": {
-                "symfony/dependency-injection": "~3.3|~4.0",
-                "symfony/finder": "~3.3|~4.0",
-                "symfony/yaml": "~3.0|~4.0"
+                "symfony/yaml": "~2.7|~3.0.0"
             },
             "suggest": {
                 "symfony/yaml": "To use the yaml reference dumper"
@@ -1788,7 +1322,7 @@
             "type": "library",
             "extra": {
                 "branch-alias": {
-                    "dev-master": "3.4-dev"
+                    "dev-master": "2.8-dev"
                 }
             },
             "autoload": {
@@ -1815,49 +1349,41 @@
             ],
             "description": "Symfony Config Component",
             "homepage": "https://symfony.com",
-            "time": "2017-12-14T19:40:10+00:00"
+            "time": "2017-11-07T11:56:23+00:00"
         },
         {
             "name": "symfony/console",
-            "version": "v3.4.2",
+            "version": "v2.8.32",
             "source": {
                 "type": "git",
                 "url": "https://github.com/symfony/console.git",
-                "reference": "9f21adfb92a9315b73ae2ed43138988ee4913d4e"
+                "reference": "46270f1ca44f08ebc134ce120fd2c2baf5fd63de"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/symfony/console/zipball/9f21adfb92a9315b73ae2ed43138988ee4913d4e",
-                "reference": "9f21adfb92a9315b73ae2ed43138988ee4913d4e",
+                "url": "https://api.github.com/repos/symfony/console/zipball/46270f1ca44f08ebc134ce120fd2c2baf5fd63de",
+                "reference": "46270f1ca44f08ebc134ce120fd2c2baf5fd63de",
                 "shasum": ""
             },
             "require": {
-                "php": "^5.5.9|>=7.0.8",
-                "symfony/debug": "~2.8|~3.0|~4.0",
+                "php": ">=5.3.9",
+                "symfony/debug": "^2.7.2|~3.0.0",
                 "symfony/polyfill-mbstring": "~1.0"
             },
-            "conflict": {
-                "symfony/dependency-injection": "<3.4",
-                "symfony/process": "<3.3"
-            },
             "require-dev": {
                 "psr/log": "~1.0",
-                "symfony/config": "~3.3|~4.0",
-                "symfony/dependency-injection": "~3.4|~4.0",
-                "symfony/event-dispatcher": "~2.8|~3.0|~4.0",
-                "symfony/lock": "~3.4|~4.0",
-                "symfony/process": "~3.3|~4.0"
+                "symfony/event-dispatcher": "~2.1|~3.0.0",
+                "symfony/process": "~2.1|~3.0.0"
             },
             "suggest": {
                 "psr/log": "For using the console logger",
                 "symfony/event-dispatcher": "",
-                "symfony/lock": "",
                 "symfony/process": ""
             },
             "type": "library",
             "extra": {
                 "branch-alias": {
-                    "dev-master": "3.4-dev"
+                    "dev-master": "2.8-dev"
                 }
             },
             "autoload": {
@@ -1884,36 +1410,37 @@
             ],
             "description": "Symfony Console Component",
             "homepage": "https://symfony.com",
-            "time": "2017-12-14T19:40:10+00:00"
+            "time": "2017-11-29T09:33:18+00:00"
         },
         {
             "name": "symfony/debug",
-            "version": "v3.4.2",
+            "version": "v2.8.32",
             "source": {
                 "type": "git",
                 "url": "https://github.com/symfony/debug.git",
-                "reference": "543deab3ffff94402440b326fc94153bae2dfa7a"
+                "reference": "e72a0340dc2e273b3c4398d8eef9157ba51d8b95"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/symfony/debug/zipball/543deab3ffff94402440b326fc94153bae2dfa7a",
-                "reference": "543deab3ffff94402440b326fc94153bae2dfa7a",
+                "url": "https://api.github.com/repos/symfony/debug/zipball/e72a0340dc2e273b3c4398d8eef9157ba51d8b95",
+                "reference": "e72a0340dc2e273b3c4398d8eef9157ba51d8b95",
                 "shasum": ""
             },
             "require": {
-                "php": "^5.5.9|>=7.0.8",
+                "php": ">=5.3.9",
                 "psr/log": "~1.0"
             },
             "conflict": {
                 "symfony/http-kernel": ">=2.3,<2.3.24|~2.4.0|>=2.5,<2.5.9|>=2.6,<2.6.2"
             },
             "require-dev": {
-                "symfony/http-kernel": "~2.8|~3.0|~4.0"
+                "symfony/class-loader": "~2.2|~3.0.0",
+                "symfony/http-kernel": "~2.3.24|~2.5.9|^2.6.2|~3.0.0"
             },
             "type": "library",
             "extra": {
                 "branch-alias": {
-                    "dev-master": "3.4-dev"
+                    "dev-master": "2.8-dev"
                 }
             },
             "autoload": {
@@ -1940,29 +1467,89 @@
             ],
             "description": "Symfony Debug Component",
             "homepage": "https://symfony.com",
-            "time": "2017-12-12T08:27:14+00:00"
+            "time": "2017-11-19T19:05:05+00:00"
+        },
+        {
+            "name": "symfony/event-dispatcher",
+            "version": "v2.8.32",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/symfony/event-dispatcher.git",
+                "reference": "b59aacf238fadda50d612c9de73b74751872a903"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/symfony/event-dispatcher/zipball/b59aacf238fadda50d612c9de73b74751872a903",
+                "reference": "b59aacf238fadda50d612c9de73b74751872a903",
+                "shasum": ""
+            },
+            "require": {
+                "php": ">=5.3.9"
+            },
+            "require-dev": {
+                "psr/log": "~1.0",
+                "symfony/config": "^2.0.5|~3.0.0",
+                "symfony/dependency-injection": "~2.6|~3.0.0",
+                "symfony/expression-language": "~2.6|~3.0.0",
+                "symfony/stopwatch": "~2.3|~3.0.0"
+            },
+            "suggest": {
+                "symfony/dependency-injection": "",
+                "symfony/http-kernel": ""
+            },
+            "type": "library",
+            "extra": {
+                "branch-alias": {
+                    "dev-master": "2.8-dev"
+                }
+            },
+            "autoload": {
+                "psr-4": {
+                    "Symfony\\Component\\EventDispatcher\\": ""
+                },
+                "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 EventDispatcher Component",
+            "homepage": "https://symfony.com",
+            "time": "2017-11-05T15:25:56+00:00"
         },
         {
             "name": "symfony/filesystem",
-            "version": "v3.4.2",
+            "version": "v2.8.32",
             "source": {
                 "type": "git",
                 "url": "https://github.com/symfony/filesystem.git",
-                "reference": "25b135bea251829e3db6a77d773643408b575ed4"
+                "reference": "15ceb6736a9eebd0d99f9e05a62296ab6ce1cf2b"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/symfony/filesystem/zipball/25b135bea251829e3db6a77d773643408b575ed4",
-                "reference": "25b135bea251829e3db6a77d773643408b575ed4",
+                "url": "https://api.github.com/repos/symfony/filesystem/zipball/15ceb6736a9eebd0d99f9e05a62296ab6ce1cf2b",
+                "reference": "15ceb6736a9eebd0d99f9e05a62296ab6ce1cf2b",
                 "shasum": ""
             },
             "require": {
-                "php": "^5.5.9|>=7.0.8"
+                "php": ">=5.3.9"
             },
             "type": "library",
             "extra": {
                 "branch-alias": {
-                    "dev-master": "3.4-dev"
+                    "dev-master": "2.8-dev"
                 }
             },
             "autoload": {
@@ -1989,7 +1576,7 @@
             ],
             "description": "Symfony Filesystem Component",
             "homepage": "https://symfony.com",
-            "time": "2017-12-14T19:40:10+00:00"
+            "time": "2017-11-19T18:39:05+00:00"
         },
         {
             "name": "symfony/polyfill-mbstring",
@@ -2052,25 +1639,25 @@
         },
         {
             "name": "symfony/stopwatch",
-            "version": "v3.4.2",
+            "version": "v2.8.32",
             "source": {
                 "type": "git",
                 "url": "https://github.com/symfony/stopwatch.git",
-                "reference": "52510fe1aefdc1c5d2076ac6030421d387e689d1"
+                "reference": "533bb9d7c2da1c6d2da163ecf0f22043ea98f59b"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/symfony/stopwatch/zipball/52510fe1aefdc1c5d2076ac6030421d387e689d1",
-                "reference": "52510fe1aefdc1c5d2076ac6030421d387e689d1",
+                "url": "https://api.github.com/repos/symfony/stopwatch/zipball/533bb9d7c2da1c6d2da163ecf0f22043ea98f59b",
+                "reference": "533bb9d7c2da1c6d2da163ecf0f22043ea98f59b",
                 "shasum": ""
             },
             "require": {
-                "php": "^5.5.9|>=7.0.8"
+                "php": ">=5.3.9"
             },
             "type": "library",
             "extra": {
                 "branch-alias": {
-                    "dev-master": "3.4-dev"
+                    "dev-master": "2.8-dev"
                 }
             },
             "autoload": {
@@ -2097,38 +1684,29 @@
             ],
             "description": "Symfony Stopwatch Component",
             "homepage": "https://symfony.com",
-            "time": "2017-11-07T14:28:09+00:00"
+            "time": "2017-11-10T18:59:36+00:00"
         },
         {
             "name": "symfony/yaml",
-            "version": "v3.4.2",
+            "version": "v2.8.32",
             "source": {
                 "type": "git",
                 "url": "https://github.com/symfony/yaml.git",
-                "reference": "afe0cd38486505c9703707707d91450cfc1bd536"
+                "reference": "968ef42161e4bc04200119da473077f9e7015128"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/symfony/yaml/zipball/afe0cd38486505c9703707707d91450cfc1bd536",
-                "reference": "afe0cd38486505c9703707707d91450cfc1bd536",
+                "url": "https://api.github.com/repos/symfony/yaml/zipball/968ef42161e4bc04200119da473077f9e7015128",
+                "reference": "968ef42161e4bc04200119da473077f9e7015128",
                 "shasum": ""
             },
             "require": {
-                "php": "^5.5.9|>=7.0.8"
-            },
-            "conflict": {
-                "symfony/console": "<3.4"
-            },
-            "require-dev": {
-                "symfony/console": "~3.4|~4.0"
-            },
-            "suggest": {
-                "symfony/console": "For validating YAML files using the lint command"
+                "php": ">=5.3.9"
             },
             "type": "library",
             "extra": {
                 "branch-alias": {
-                    "dev-master": "3.4-dev"
+                    "dev-master": "2.8-dev"
                 }
             },
             "autoload": {
@@ -2155,57 +1733,7 @@
             ],
             "description": "Symfony Yaml Component",
             "homepage": "https://symfony.com",
-            "time": "2017-12-11T20:38:23+00:00"
-        },
-        {
-            "name": "webmozart/assert",
-            "version": "1.2.0",
-            "source": {
-                "type": "git",
-                "url": "https://github.com/webmozart/assert.git",
-                "reference": "2db61e59ff05fe5126d152bd0655c9ea113e550f"
-            },
-            "dist": {
-                "type": "zip",
-                "url": "https://api.github.com/repos/webmozart/assert/zipball/2db61e59ff05fe5126d152bd0655c9ea113e550f",
-                "reference": "2db61e59ff05fe5126d152bd0655c9ea113e550f",
-                "shasum": ""
-            },
-            "require": {
-                "php": "^5.3.3 || ^7.0"
-            },
-            "require-dev": {
-                "phpunit/phpunit": "^4.6",
-                "sebastian/version": "^1.0.1"
-            },
-            "type": "library",
-            "extra": {
-                "branch-alias": {
-                    "dev-master": "1.3-dev"
-                }
-            },
-            "autoload": {
-                "psr-4": {
-                    "Webmozart\\Assert\\": "src/"
-                }
-            },
-            "notification-url": "https://packagist.org/downloads/",
-            "license": [
-                "MIT"
-            ],
-            "authors": [
-                {
-                    "name": "Bernhard Schussek",
-                    "email": "bschussek@gmail.com"
-                }
-            ],
-            "description": "Assertions to validate method input/output with nice error messages.",
-            "keywords": [
-                "assert",
-                "check",
-                "validate"
-            ],
-            "time": "2016-11-23T20:04:58+00:00"
+            "time": "2017-11-29T09:33:18+00:00"
         }
     ],
     "aliases": [],
diff --git a/src/Expander.php b/src/Expander.php
index 0282380..7f5fcef 100644
--- a/src/Expander.php
+++ b/src/Expander.php
@@ -30,7 +30,7 @@ public function __construct()
     /**
      * @return \Grasmash\Expander\StringifierInterface
      */
-    public function getStringifier(): \Grasmash\Expander\StringifierInterface
+    public function getStringifier()
     {
         return $this->stringifier;
     }
@@ -46,7 +46,7 @@ public function setStringifier(\Grasmash\Expander\StringifierInterface $stringif
     /**
      * @return \Psr\Log\LoggerInterface
      */
-    public function getLogger(): \Psr\Log\LoggerInterface
+    public function getLogger()
     {
         return $this->logger;
     }
@@ -280,7 +280,7 @@ public function expandProperty($property_name, $unexpanded_value, $data)
         } else {
             $expanded_value = $data->get($property_name);
             if (is_array($expanded_value)) {
-                $expanded_value = $this->getStringifier()::stringifyArray($expanded_value);
+                $expanded_value = $this->getStringifier()->stringifyArray($expanded_value);
                 return $expanded_value;
             }
             $this->log("Expanding property \${'$property_name'} => $expanded_value.");