Try to integrate the amp-hulu tag

src/AMP.php

@@ -58,6 +58,7 @@ class AMP
         'Lullabot\AMP\Pass\IframeVineTagTransformPass',
         'Lullabot\AMP\Pass\IframeDailymotionTagTransformPass',
         'Lullabot\AMP\Pass\IframeYouTubeTagTransformPass',
+        'Lullabot\AMP\Pass\IframeHuluTagTransformPass',
         'Lullabot\AMP\Pass\IframeTagTransformPass',
         'Lullabot\AMP\Pass\InstagramTransformPass',
         'Lullabot\AMP\Pass\PinterestTagTransformPass',

src/Pass/IframeHuluTagTransformPass.php

@@ -0,0 +1,69 @@
+<?php
+/*
+ * Copyright 2016 Google
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+
+namespace Lullabot\AMP\Pass;
+
+use QueryPath\DOMQuery;
+
+use Lullabot\AMP\Utility\ActionTakenLine;
+use Lullabot\AMP\Utility\ActionTakenType;
+
+/**
+ * Class IframeHuluTagTransformPass
+ * @package Lullabot\AMP\Pass
+ *
+ * Sample hulu embed code:
+ * <iframe width="854" height="480" frameborder="0" allowfullscreen="allowfullscreen" src="//www.hulu.com/embed.html?eid=_hHzwnAcj3RrXMJFDDvkuw"></iframe>
+ *
+ * @see https://www.ampproject.org/docs/reference/extended/amp-hulu.html
+ * @see https://ampbyexample.com/components/amp-hulu/
+ */
+class IframeHuluTagTransformPass extends BasePass
+{
+    function pass()
+    {
+        $all_iframes = $this->q->find('iframe:not(noscript iframe)');
+        /** @var DOMQuery $el */
+        foreach ($all_iframes as $el) {
+            /** @var \DOMElement $dom_el */
+            $dom_el = $el->get(0);
+            $lineno = $this->getLineNo($dom_el);
+            $query = $this->getQueryArray($el);
+            // If we can't get the videoid, abort
+            if (empty($query['eid'])) {
+                continue;
+            }
+            $eid = $query['eid'];
+            $width = $el->attr('width') ?: 800;
+            $height = $el->attr('height') ?: 600;
+
+            $context_string = $this->getContextString($dom_el);
+
+            // width and height are intended to be aspect ratios here
+            $el->after('<amp-hulu width="' . $width . '" height="' . $height . '" layout="responsive" data-eid="' . $eid . '"></amp-hulu>');
+            $new_dom_el = $el->next()->get(0);
+
+            $el->removeChildren()->remove();
+            $this->addActionTaken(new ActionTakenLine('iframe', ActionTakenType::HULU_CONVERTED, $lineno, $context_string));
+
+            $this->context->addLineAssociation($new_dom_el, $lineno);
+        }
+
+        return $this->transformations;
+    }
+}

src/Utility/ActionTakenType.php

@@ -33,6 +33,7 @@ class ActionTakenType
     const FACEBOOK_JSDK_CONVERTED = 'facebook javascript sdk embed code was converted to the amp-facebook tag.';
     const FACEBOOK_SCRIPT_REMOVED = 'facebook script tag was removed.';
     const VIMEO_CONVERTED = 'vimeo embed code was converted to the amp-vimeo tag.';
+    const HULU_CONVERTED = 'hulu embed code was converted to the amp-hulu tag.';
     const DAILYMOTION_CONVERTED = 'dailymotion embed code was converted to the amp-dailymotion tag.';
     const TWITTER_CONVERTED = 'twitter embed code was converted to the amp-twitter tag.';
     const IFRAME_CONVERTED = 'tag was converted to the amp-iframe tag.';

tests/test-data/fragment-html/hulu-fragment.html

@@ -0,0 +1 @@
+<iframe width="854" height="480" frameborder="0" allowfullscreen="allowfullscreen" src="//www.hulu.com/embed.html?eid=_hHzwnAcj3RrXMJFDDvkuw"></iframe>

tests/test-data/fragment-html/hulu-fragment.html.out

@@ -0,0 +1,25 @@
+<amp-vine layout="responsive" data-vineid="ixtpg1zrLQt" height="600" width="600"></amp-vine>
+
+
+
+ORIGINAL HTML
+---------------
+Line 1: <iframe width="854" height="480" frameborder="0" allowfullscreen="allowfullscreen" src="//www.hulu.com/embed.html?eid=_hHzwnAcj3RrXMJFDDvkuw"></iframe>
+Line 2:
+
+
+Transformations made from HTML tags to AMP custom tags
+-------------------------------------------------------
+
+<amp-hulu width="854" height="480" layout="responsive" data-eid="_hHzwnAcj3RrXMJFDDvkuw"></amp-hulu> at line 1
+ ACTION TAKEN: iframe (with associated script tag) hulu embed code was converted to the amp-hulu tag.
+
+
+AMP-HTML Validation Issues and Fixes
+-------------------------------------
+PASS
+
+COMPONENT NAMES WITH JS PATH
+------------------------------
+'amp-vine', include path 'https://cdn.ampproject.org/v0/amp-vine-0.1.js'
+