Added APL Rdata type.

composer.json

 {
     "name": "badcow/dns",
     "description": "A PHP library for creating DNS zone files based on RFC1035",
-    "stability": "dev",
     "authors": [
         {
             "name": "Sam Williams",
@@ -9,7 +8,8 @@
         }
     ],
     "require": {
-        "php": "~7.1"
+        "php": "~7.1",
+        "rlanvin/php-ip": "~1.0"
     },
     "require-dev": {
         "phpunit/phpunit": "~7.3"

lib/Rdata/APL.php

+<?php
+
+namespace Badcow\DNS\Rdata;
+
+
+use Badcow\DNS\ResourceRecord;
+
+class APL implements RdataInterface, FormattableInterface
+{
+    use RdataTrait;
+    use FormattableTrait;
+
+    const TYPE = 'APL';
+
+    /**
+     * @var \IPBlock[]
+     */
+    private $includedAddressRanges = [];
+
+    /**
+     * @var \IPBlock[]
+     */
+    private $excludedAddressRanges = [];
+
+    /**
+     * @param \IPBlock $ipBlock
+     * @param bool $included True if the resource exists within the range, False if the resource
+     * is not within the range. I.E. the negation.
+     */
+    public function addAddressRange(\IPBlock $ipBlock, $included = true)
+    {
+        if ($included) {
+            $this->includedAddressRanges[] = $ipBlock;
+        } else {
+            $this->excludedAddressRanges[] = $ipBlock;
+        }
+    }
+
+    /**
+     * @return \IPBlock[]
+     */
+    public function getIncludedAddressRanges(): array
+    {
+        return $this->includedAddressRanges;
+    }
+
+    /**
+     * @return \IPBlock[]
+     */
+    public function getExcludedAddressRanges(): array
+    {
+        return $this->excludedAddressRanges;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function output()
+    {
+        $string = '';
+        foreach ($this->includedAddressRanges as $ipBlock) {
+            $string .= (4 === $ipBlock->getVersion())? '1:' : '2:';
+            $string .= (string) $ipBlock.' ';
+        }
+
+        foreach ($this->excludedAddressRanges as $ipBlock) {
+            $string .= (4 === $ipBlock->getVersion())? '!1:' : '!2:';
+            $string .= (string) $ipBlock.' ';
+        }
+
+        return rtrim($string, ' ');
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function outputFormatted()
+    {
+        $string = ResourceRecord::MULTILINE_BEGIN.PHP_EOL;
+        foreach (explode(' ', $this->output()) as $block) {
+            $string .= $this->makeLine($block);
+        }
+
+        return $string.str_repeat(' ', $this->padding).ResourceRecord::MULTILINE_END;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function longestVarLength()
+    {
+        $l = 0;
+        foreach (explode(' ', $this->output()) as $block) {
+            $l = ($l < strlen($block)) ? strlen($block) : $l;
+        }
+
+        return $l;
+    }
+}
\ No newline at end of file

lib/Rdata/Factory.php

@@ -329,4 +329,24 @@ class Factory
 
         return $rdata;
     }
+
+    /**
+     * @param \IPBlock[] $includedRanges
+     * @param \IPBlock[] $excludedRanges
+     * @return APL
+     */
+    public static function Apl(array $includedRanges = [], array $excludedRanges = []): APL
+    {
+        $rdata = new APL();
+
+        foreach ($includedRanges as $ipBlock) {
+            $rdata->addAddressRange($ipBlock, true);
+        }
+
+        foreach ($excludedRanges as $ipBlock) {
+            $rdata->addAddressRange($ipBlock, false);
+        }
+
+        return $rdata;
+    }
 }

lib/Tests/Rdata/AplTest.php

+<?php
+
+namespace Badcow\DNS\Tests\Rdata;
+
+
+use Badcow\DNS\Rdata\APL;
+use PHPUnit\Framework\TestCase;
+
+class AplTest extends TestCase
+{
+    public function testOutput()
+    {
+        $apl = new APL;
+        $apl->addAddressRange(\IPBlock::create('192.168.0.0/23'));
+        $apl->addAddressRange(\IPBlock::create('192.168.1.64/28'), false);
+        $apl->addAddressRange(\IPBlock::create('2001:acad:1::/112'), true);
+        $apl->addAddressRange(\IPBlock::create('2001:acad:1::8/128'), false);
+
+        $expectation = '1:192.168.0.0/23 2:2001:acad:1::/112 !1:192.168.1.64/28 !2:2001:acad:1::8/128';
+        $this->assertEquals($expectation, $apl->output());
+    }
+}
\ No newline at end of file