Merge pull request #38 from Simounet/feature/media-added-to-positive

Media class added to positive candidates

.gitattributes

@@ -3,6 +3,7 @@
 /.gitignore export-ignore
 /.scrutinizer.yml export-ignore
 /.travis.yml export-ignore
+/.php_cs export-ignore
 /README.md export-ignore
 /phpunit.xml.dist export-ignore
 /tests export-ignore

.gitignore

@@ -1,3 +1,4 @@
 vendor/
 coverage/
 composer.lock
+.php_cs.cache

.php_cs

@@ -0,0 +1,20 @@
+<?php
+
+return Symfony\CS\Config\Config::create()
+    ->setUsingCache(true)
+    ->level(Symfony\CS\FixerInterface::SYMFONY_LEVEL)
+    // use default SYMFONY_LEVEL and extra fixers:
+    ->fixers(array(
+        'concat_with_spaces',
+        'ordered_use',
+        'phpdoc_order',
+        'strict',
+        'strict_param',
+        'long_array_syntax',
+    ))
+    ->finder(
+        Symfony\CS\Finder\DefaultFinder::create()
+            ->in(__DIR__)
+            ->exclude(array('vendor'))
+    )
+;

.travis.yml

@@ -1,17 +1,31 @@
 language: php
 
 php:
-    - 5.3.3
-    - 5.3
-    - 5.4
     - 5.5
     - 5.6
     - 7.0
+    - 7.1
+    - 7.2
+    - nightly
     - hhvm
 
 matrix:
+    include:
+        - php: 5.3.3
+          dist: precise
+          sudo: required
+        - php: 5.3
+          dist: precise
+          sudo: required
+        - php: 5.4
+          dist: precise
+          sudo: required
+        - php: 7.0
+          env: CS_FIXER=run
     fast_finish: true
     allow_failures:
+        - php: 7.2
+        - php: nightly
         - php: hhvm
 
 # faster builds on new travis setup not using sudo
@@ -23,20 +37,25 @@ cache:
         - vendor
         - $HOME/.composer/cache
 
-install:
-    - composer self-update
-
-before_script:
+before_install:
     - if [ -n "$GH_TOKEN" ]; then composer config github-oauth.github.com ${GH_TOKEN}; fi;
     # disable TLS for composer because openssl is disabled for PHP 5.3.3 on travis
     # see: https://blog.travis-ci.com/upcoming_ubuntu_11_10_migration/
     - if [[ $TRAVIS_PHP_VERSION = 5.3.3 ]]; then composer config -g -- disable-tls true; fi;
     - if [[ $TRAVIS_PHP_VERSION = 5.3.3 ]]; then composer config -g -- secure-http false; fi;
+    # no version compatible with PHP > 7.1
+    - if [[ $TRAVIS_PHP_VERSION = 7.2.* ]]; then composer remove friendsofphp/php-cs-fixer; fi;
+
+install:
+    - composer self-update
+
+before_script:
     - composer install --prefer-dist --no-interaction
 
 script:
     - mkdir -p build/logs
-    - phpunit -v --coverage-clover build/logs/clover.xml
+    - php vendor/bin/simple-phpunit -v --coverage-clover build/logs/clover.xml
+    - if [ "$CS_FIXER" = "run" ]; then php vendor/bin/php-cs-fixer fix --verbose --dry-run ; fi;
 
 after_script:
     - php vendor/bin/coveralls -v

README.md

@@ -17,9 +17,9 @@ The default php-readability lib is really old and needs to be improved. I found
 
 ## Requirements
 
-By default, this lib will use the [Tidy extension](https://github.com/htacg/tidy-html5) if it's available. Tidy is only used to cleanup the given HTML and avoid problems with bad HTML structure, etc ..
+By default, this lib will use the [Tidy extension](https://github.com/htacg/tidy-html5) if it's available. Tidy is only used to cleanup the given HTML and avoid problems with bad HTML structure, etc .. It'll be suggested by Composer.
 
-Since Composer doesn't support suggestion on PHP extension, I write this suggestion here.
+Also, if you got problem from parsing a content without Tidy installed, please install it and try again.
 
 ## Usage
 

composer.json

@@ -25,10 +25,18 @@
     }],
     "require": {
         "php": ">=5.3.3",
-        "monolog/monolog": "^1.13.1"
+        "ext-mbstring": "*",
+        "psr/log": "^1.0",
+        "electrolinux/php-html5lib": "^0.1.0"
     },
     "require-dev": {
-        "satooshi/php-coveralls": "~0.6"
+        "satooshi/php-coveralls": "~0.6",
+        "friendsofphp/php-cs-fixer": "<2",
+        "monolog/monolog": "^1.13",
+        "symfony/phpunit-bridge": "^3.2"
+    },
+    "suggest": {
+        "ext-tidy": "Used to clean up given HTML and to avoid problems with bad HTML structure."
     },
     "autoload": {
         "psr-4": { "Readability\\": "src/" }

src/JSLikeHTMLElement.php

@@ -45,19 +45,31 @@ class JSLikeHTMLElement extends \DOMElement
      */
     public function __set($name, $value)
     {
-        if ($name == 'innerHTML') {
+        if ($name !== 'innerHTML') {
+            $trace = debug_backtrace();
+            trigger_error('Undefined property via __set(): ' . $name . ' in ' . $trace[0]['file'] . ' on line ' . $trace[0]['line'], E_USER_NOTICE);
+
+            return;
+        }
+
         // first, empty the element
         for ($x = $this->childNodes->length - 1; $x >= 0; --$x) {
             $this->removeChild($this->childNodes->item($x));
         }
 
         // $value holds our new inner HTML
-            if ($value != '') {
+        $value = trim($value);
+        if (empty($value)) {
+            return;
+        }
+
+        // ensure bad entity won't generate warning
+        $previousError = libxml_use_internal_errors(true);
+
         $f = $this->ownerDocument->createDocumentFragment();
 
         // appendXML() expects well-formed markup (XHTML)
-                // @ to suppress PHP warnings
-                $result = @$f->appendXML($value);
+        $result = $f->appendXML($value);
         if ($result) {
             if ($f->hasChildNodes()) {
                 $this->appendChild($f);
@@ -72,7 +84,7 @@ class JSLikeHTMLElement extends \DOMElement
             // We use it (and suppress the warning) because an HTML fragment will
             // be wrapped around <html><body> tags which we don't really want to keep.
             // Note: despite the warning, if loadHTML succeeds it will return true.
-                    $result = @$f->loadHTML('<htmlfragment>'.$value.'</htmlfragment>');
+            $result = $f->loadHTML('<htmlfragment>' . $value . '</htmlfragment>');
 
             if ($result) {
                 $import = $f->getElementsByTagName('htmlfragment')->item(0);
@@ -81,16 +93,11 @@ class JSLikeHTMLElement extends \DOMElement
                     $importedNode = $this->ownerDocument->importNode($child, true);
                     $this->appendChild($importedNode);
                 }
-                    } else {
-                        // oh well, we tried, we really did. :(
-                        // this element is now empty
             }
         }
-            }
-        } else {
-            $trace = debug_backtrace();
-            trigger_error('Undefined property via __set(): '.$name.' in '.$trace[0]['file'].' on line '.$trace[0]['line'], E_USER_NOTICE);
-        }
+
+        libxml_clear_errors();
+        libxml_use_internal_errors($previousError);
     }
 
     /**
@@ -102,7 +109,7 @@ class JSLikeHTMLElement extends \DOMElement
      */
     public function __get($name)
     {
-        if ($name == 'innerHTML') {
+        if ($name === 'innerHTML') {
             $inner = '';
 
             foreach ($this->childNodes as $child) {
@@ -113,13 +120,13 @@ class JSLikeHTMLElement extends \DOMElement
         }
 
         $trace = debug_backtrace();
-        trigger_error('Undefined property via __get(): '.$name.' in '.$trace[0]['file'].' on line '.$trace[0]['line'], E_USER_NOTICE);
+        trigger_error('Undefined property via __get(): ' . $name . ' in ' . $trace[0]['file'] . ' on line ' . $trace[0]['line'], E_USER_NOTICE);
 
         return;
     }
 
     public function __toString()
     {
-        return '['.$this->tagName.']';
+        return '[' . $this->tagName . ']';
     }
 }

src/Readability.php

@@ -2,6 +2,7 @@
 
 namespace Readability;
 
+use HTML5Lib\Parser;
 use Psr\Log\LoggerAwareInterface;
 use Psr\Log\LoggerInterface;
 use Psr\Log\NullLogger;
@@ -66,7 +67,7 @@ class Readability implements LoggerAwareInterface
     public $tidied = false;
     // article domain regexp for calibration
     protected $domainRegExp = null;
-    protected $body = null; //
+    protected $body = null;
     // Cache the body HTML in case we need to re-use it later
     protected $bodyCache = null;
     // 1 | 2 | 4;   // Start with all processing flags set.
@@ -83,11 +84,11 @@ class Readability implements LoggerAwareInterface
      * Defined up here so we don't instantiate them repeatedly in loops.
      */
     public $regexps = array(
-        'unlikelyCandidates' => '/display\s*:\s*none|ignore|\binfo|annoy|clock|date|time|author|intro|links|hidd?e|about|archive|\bprint|bookmark|tags|tag-list|share|search|social|robot|published|combx|comment|mast(?:head)|subscri|community|category|disqus|extra|head|head(?:er|note)|floor|foot(?:er|note)|menu|tool|function|nav|remark|rss|shoutbox|tool|widget|meta|banner|sponsor|adsense|inner-?ad|ad-|sponsor|\badv\b|\bads\b|agr?egate?|pager|sidebar|popup|tweet|twitter/i',
-        'okMaybeItsACandidate' => '/article\b|contain|\bcontent|column|general|detail|shadow|lightbox|blog|body|entry|main|page/i',
-        'positive' => '/read|full|article|body|\bcontent|contain|entry|main|markdown|page|attach|pagination|post|text|blog|story/i',
+        'unlikelyCandidates' => '/display\s*:\s*none|ignore|\binfos?\b|annoy|clock|date|time|author|intro|hidd?e|about|archive|\bprint|bookmark|tags|tag-list|share|search|social|robot|published|combx|comment|mast(?:head)|subscri|community|category|disqus|extra|head|head(?:er|note)|floor|foot(?:er|note)|menu|tool\b|function|nav|remark|rss|shoutbox|widget|meta|banner|sponsor|adsense|inner-?ad|ad-|sponsor|\badv\b|\bads\b|agr?egate?|pager|sidebar|popup|tweet|twitter/i',
+        'okMaybeItsACandidate' => '/article\b|contain|\bcontent|column|general|detail|shadow|lightbox|blog|body|entry|main|page|footnote/i',
+        'positive' => '/read|full|article|body|\bcontent|contain|entry|main|markdown|media|page|attach|pagination|post|text|blog|story/i',
         'negative' => '/bottom|stat|info|discuss|e[\-]?mail|comment|reply|log.{2}(n|ed)|sign|single|combx|com-|contact|_nav|link|media|\bout|promo|\bad-|related|scroll|shoutbox|sidebar|sponsor|shopping|teaser|recommend/i',
-        'divToPElements' => '/<(?:blockquote|code|div|article|footer|aside|img|p|pre|dl|ol|ul)/mi',
+        'divToPElements' => '/<(?:blockquote|header|section|code|div|article|footer|aside|img|p|pre|dl|ol|ul)/mi',
         'killBreaks' => '/(<br\s*\/?>([ \r\n\s]|&nbsp;?)*)+/',
         'media' => '!//(?:[^\.\?/]+\.)?(?:youtu(?:be)?|soundcloud|dailymotion|vimeo|pornhub|xvideos|twitvid|rutube|viddler)\.(?:com|be|org|net)/!i',
         'skipFootnoteLink' => '/^\s*(\[?[a-z0-9]{1,2}\]?|^|edit|citation needed)\s*$/i',
@@ -174,14 +175,15 @@ class Readability implements LoggerAwareInterface
      * @param string (optional) Which parser to use for turning raw HTML into a DOMDocument
      * @param bool (optional) Use tidy
      */
-    public function __construct($html, $url = null, $parser = 'libxml', $useTidy = true)
+    public function __construct($html, $url = null, $parser = 'libxml', $use_tidy = true)
     {
         $this->url = $url;
         $this->html = $html;
         $this->parser = $parser;
-        $this->useTidy = $useTidy && function_exists('tidy_parse_string');
+        $this->useTidy = $use_tidy && function_exists('tidy_parse_string');
 
         $this->logger = new NullLogger();
+        $this->loadHtml();
     }
 
     public function setLogger(LoggerInterface $logger)
@@ -235,15 +237,17 @@ class Readability implements LoggerAwareInterface
      * Load HTML in a DOMDocument.
      * Apply Pre filters
      * Cleanup HTML using Tidy (or not).
+     *
+     * @todo This should be called in init() instead of from __construct
      */
     private function loadHtml()
     {
         $this->original_html = $this->html;
 
-        $this->logger->debug('Parsing URL: '.$this->url);
+        $this->logger->debug('Parsing URL: ' . $this->url);
 
         if ($this->url) {
-            $this->domainRegExp = '/'.strtr(preg_replace('/www\d*\./', '', parse_url($this->url, PHP_URL_HOST)), array('.' => '\.')).'/';
+            $this->domainRegExp = '/' . strtr(preg_replace('/www\d*\./', '', parse_url($this->url, PHP_URL_HOST)), array('.' => '\.')) . '/';
         }
 
         mb_internal_encoding('UTF-8');
@@ -266,7 +270,6 @@ class Readability implements LoggerAwareInterface
          * Use tidy (if it exists).
          * This fixes problems with some sites which would otherwise trouble DOMDocument's HTML parsing.
          * Although sometimes it makes matters worse, which is why there is an option to disable it.
-         *
          */
         if ($this->useTidy) {
             $this->logger->debug('Tidying document');
@@ -282,7 +285,7 @@ class Readability implements LoggerAwareInterface
 
         $this->html = mb_convert_encoding($this->html, 'HTML-ENTITIES', 'UTF-8');
 
-        if (!($this->parser == 'html5lib' && ($this->dom = \HTML5_Parser::parse($this->html)))) {
+        if (!($this->parser === 'html5lib' && ($this->dom = Parser::parse($this->html)))) {
             libxml_use_internal_errors(true);
 
             $this->dom = new \DOMDocument();
@@ -314,8 +317,6 @@ class Readability implements LoggerAwareInterface
      */
     public function init()
     {
-        $this->loadHtml();
-
         if (!isset($this->dom->documentElement)) {
             return false;
         }
@@ -325,7 +326,7 @@ class Readability implements LoggerAwareInterface
         $bodyElems = $this->dom->getElementsByTagName('body');
 
         // WTF multiple body nodes?
-        if ($this->bodyCache == null) {
+        if ($this->bodyCache === null) {
             $this->bodyCache = '';
             foreach ($bodyElems as $bodyNode) {
                 $this->bodyCache .= trim($bodyNode->innerHTML);
@@ -372,12 +373,33 @@ class Readability implements LoggerAwareInterface
         return $this->success;
     }
 
+    /**
+     * Debug.
+     *
+     * @deprecated use $this->logger->debug() instead
+     * @codeCoverageIgnore
+     */
+    protected function dbg($msg)
+    {
+        $this->logger->debug($msg);
+    }
+
+    /**
+     * Dump debug info.
+     *
+     * @deprecated since Monolog gather log, we don't need it
+     * @codeCoverageIgnore
+     */
+    protected function dump_dbg()
+    {
+    }
+
     /**
      * Run any post-process modifications to article content as necessary.
      *
      * @param \DOMElement $articleContent
      */
-    public function postProcessContent(\DOMElement $articleContent)
+    public function postProcessContent($articleContent)
     {
         if ($this->convertLinksToFootnotes && !preg_match('/\bwiki/', $this->url)) {
             $this->addFootnotes($articleContent);
@@ -410,7 +432,7 @@ class Readability implements LoggerAwareInterface
             }
         } elseif (mb_strlen($curTitle) > 150 || mb_strlen($curTitle) < 15) {
             $hOnes = $this->dom->getElementsByTagName('h1');
-            if ($hOnes->length == 1) {
+            if ($hOnes->length === 1) {
                 $curTitle = $this->getInnerText($hOnes->item(0));
             }
         }
@@ -462,7 +484,7 @@ class Readability implements LoggerAwareInterface
      *
      * @param \DOMElement $articleContent
      */
-    public function addFootnotes(\DOMElement $articleContent)
+    public function addFootnotes($articleContent)
     {
         $footnotesWrapper = $this->dom->createElement('footer');
         $footnotesWrapper->setAttribute('class', 'readability-footnotes');
@@ -491,8 +513,8 @@ class Readability implements LoggerAwareInterface
             ++$linkCount;
 
             // Add a superscript reference after the article link.
-            $refLink->setAttribute('href', '#readabilityFootnoteLink-'.$linkCount);
-            $refLink->innerHTML = '<small><sup>['.$linkCount.']</sup></small>';
+            $refLink->setAttribute('href', '#readabilityFootnoteLink-' . $linkCount);
+            $refLink->innerHTML = '<small><sup>[' . $linkCount . ']</sup></small>';
             $refLink->setAttribute('class', 'readability-DoNotFootnote');
             $refLink->setAttribute('style', 'color: inherit;');
 
@@ -503,14 +525,14 @@ class Readability implements LoggerAwareInterface
             }
 
             $articleLink->setAttribute('style', 'color: inherit; text-decoration: none;');
-            $articleLink->setAttribute('name', 'readabilityLink-'.$linkCount);
-            $footnote->innerHTML = '<small><sup><a href="#readabilityLink-'.$linkCount.'" title="Jump to Link in Article">^</a></sup></small> ';
-            $footnoteLink->innerHTML = ($footnoteLink->getAttribute('title') != '' ? $footnoteLink->getAttribute('title') : $linkText);
-            $footnoteLink->setAttribute('name', 'readabilityFootnoteLink-'.$linkCount);
+            $articleLink->setAttribute('name', 'readabilityLink-' . $linkCount);
+            $footnote->innerHTML = '<small><sup><a href="#readabilityLink-' . $linkCount . '" title="Jump to Link in Article">^</a></sup></small> ';
+            $footnoteLink->innerHTML = ($footnoteLink->getAttribute('title') !== '' ? $footnoteLink->getAttribute('title') : $linkText);
+            $footnoteLink->setAttribute('name', 'readabilityFootnoteLink-' . $linkCount);
             $footnote->appendChild($footnoteLink);
 
             if ($linkDomain) {
-                $footnote->innerHTML = $footnote->innerHTML.'<small> ('.$linkDomain.')</small>';
+                $footnote->innerHTML = $footnote->innerHTML . '<small> (' . $linkDomain . ')</small>';
             }
             $articleFootnotes->appendChild($footnote);
         }
@@ -526,7 +548,7 @@ class Readability implements LoggerAwareInterface
      *
      * @param \DOMElement $articleContent
      */
-    public function prepArticle(\DOMElement $articleContent)
+    public function prepArticle($articleContent)
     {
         $this->logger->debug($this->lightClean ? 'Light clean enabled.' : 'Standard clean enabled.');
 
@@ -567,7 +589,7 @@ class Readability implements LoggerAwareInterface
          *  already have a header.
          */
         $h2s = $articleContent->getElementsByTagName('h2');
-        if ($h2s->length == 1 && mb_strlen($this->getInnerText($h2s->item(0), true, true)) < 100) {
+        if ($h2s->length === 1 && mb_strlen($this->getInnerText($h2s->item(0), true, true)) < 100) {
             $this->clean($articleContent, 'h2');
         }
 
@@ -612,7 +634,7 @@ class Readability implements LoggerAwareInterface
                 }
                 unset($search, $replace);
             } catch (\Exception $e) {
-                $this->logger->error('Cleaning output HTML failed. Ignoring: '.$e->getMessage());
+                $this->logger->error('Cleaning output HTML failed. Ignoring: ' . $e->getMessage());
             }
         }
     }
@@ -623,7 +645,7 @@ class Readability implements LoggerAwareInterface
      *
      * @param \DOMElement $node
      */
-    protected function initializeNode(\DOMElement $node)
+    protected function initializeNode($node)
     {
         if (!isset($node->tagName)) {
             return;
@@ -694,7 +716,7 @@ class Readability implements LoggerAwareInterface
      *
      * @return \DOMElement|bool
      */
-    protected function grabArticle(\DOMElement $page = null)
+    protected function grabArticle($page = null)
     {
         if (!$page) {
             $page = $this->dom;
@@ -711,8 +733,9 @@ class Readability implements LoggerAwareInterface
 
         for ($nodeIndex = 0; ($node = $allElements->item($nodeIndex)); ++$nodeIndex) {
             $tagName = $node->tagName;
+
             // Some well known site uses sections as paragraphs.
-            if (strcasecmp($tagName, 'p') === 0 || strcasecmp($tagName, 'td') === 0 || strcasecmp($tagName, 'section') === 0) {
+            if (strcasecmp($tagName, 'p') === 0 || strcasecmp($tagName, 'td') === 0 || strcasecmp($tagName, 'pre') === 0 || strcasecmp($tagName, 'section') === 0) {
                 $nodesToScore[] = $node;
             }
 
@@ -729,13 +752,18 @@ class Readability implements LoggerAwareInterface
                         --$nodeIndex;
                         $nodesToScore[] = $newNode;
                     } catch (\Exception $e) {
-                        $this->logger->error('Could not alter div/article to p, reverting back to div: '.$e->getMessage());
+                        $this->logger->error('Could not alter div/article to p, reverting back to div: ' . $e->getMessage());
                     }
                 } else {
                     // Will change these P elements back to text nodes after processing.
                     for ($i = 0, $il = $node->childNodes->length; $i < $il; ++$i) {
                         $childNode = $node->childNodes->item($i);
 
+                        // it looks like sometimes the loop is going too far and we are retrieving a non-existant child
+                        if (null === $childNode) {
+                            continue;
+                        }
+
                         // executable tags (<?php or <?xml) warning
                         if (is_object($childNode) && get_class($childNode) === 'DOMProcessingInstruction') {
                             $childNode->parentNode->removeChild($childNode);
@@ -743,8 +771,7 @@ class Readability implements LoggerAwareInterface
                             continue;
                         }
 
-                         // XML_TEXT_NODE
-                        if ($childNode->nodeType == 3) {
+                        if ($childNode->nodeType === XML_TEXT_NODE) {
                             $p = $this->dom->createElement('p');
                             $p->innerHTML = $childNode->nodeValue;
                             $p->setAttribute('data-readability-styled', 'true');
@@ -770,7 +797,7 @@ class Readability implements LoggerAwareInterface
                 continue;
             }
 
-            $grandParentNode = ($parentNode->parentNode instanceof \DOMElement) ? $parentNode->parentNode : null;
+            $grandParentNode = $parentNode->parentNode instanceof \DOMElement ? $parentNode->parentNode : null;
             $innerText = $this->getInnerText($nodesToScore[$pt]);
 
             // If this paragraph is less than MIN_PARAGRAPH_LENGTH (default:20) characters, don't even count it.
@@ -830,7 +857,7 @@ class Readability implements LoggerAwareInterface
                 $node = $candidates->item($c);
                 // node should be readable but not inside of an article otherwise it's probably non-readable block
                 if ($node->hasAttribute('readability') && (int) $node->getAttributeNode('readability')->value < 40 && ($node->parentNode ? strcasecmp($node->parentNode->tagName, 'article') !== 0 : true)) {
-                    $this->logger->debug('Removing unlikely candidate (using note) '.$node->getNodePath().' by "'.$node->tagName.'" with readability '.($node->hasAttribute('readability') ? (int) $node->getAttributeNode('readability')->value : 0));
+                    $this->logger->debug('Removing unlikely candidate (using note) ' . $node->getNodePath() . ' by "' . $node->tagName . '" with readability ' . ($node->hasAttribute('readability') ? (int) $node->getAttributeNode('readability')->value : 0));
                     $node->parentNode->removeChild($node);
                 }
             }
@@ -842,13 +869,13 @@ class Readability implements LoggerAwareInterface
                 $node = $candidates->item($c);
 
                 // Remove unlikely candidates
-                $unlikelyMatchString = $node->getAttribute('class').' '.$node->getAttribute('id').' '.$node->getAttribute('style');
+                $unlikelyMatchString = $node->getAttribute('class') . ' ' . $node->getAttribute('id') . ' ' . $node->getAttribute('style');
 
                 if (mb_strlen($unlikelyMatchString) > 3 && // don't process "empty" strings
                     preg_match($this->regexps['unlikelyCandidates'], $unlikelyMatchString) &&
                     !preg_match($this->regexps['okMaybeItsACandidate'], $unlikelyMatchString)
                 ) {
-                    $this->logger->debug('Removing unlikely candidate (using conf) '.$node->getNodePath().' by "'.$unlikelyMatchString.'" with readability '.($node->hasAttribute('readability') ? (int) $node->getAttributeNode('readability')->value : 0));
+                    $this->logger->debug('Removing unlikely candidate (using conf) ' . $node->getNodePath() . ' by "' . $unlikelyMatchString . '" with readability ' . ($node->hasAttribute('readability') ? (int) $node->getAttributeNode('readability')->value : 0));
                     $node->parentNode->removeChild($node);
                     --$nodeIndex;
                 }
@@ -875,7 +902,7 @@ class Readability implements LoggerAwareInterface
                 $readability->value = round($readability->value * (1 - $this->getLinkDensity($item)), 0, PHP_ROUND_HALF_UP);
 
                 if (!$topCandidate || $readability->value > (int) $topCandidate->getAttribute('readability')) {
-                    $this->logger->debug('Candidate: '.$item->getNodePath().' ('.$item->getAttribute('class').':'.$item->getAttribute('id').') with score '.$readability->value);
+                    $this->logger->debug('Candidate: ' . $item->getNodePath() . ' (' . $item->getAttribute('class') . ':' . $item->getAttribute('id') . ') with score ' . $readability->value);
                     $topCandidate = $item;
                 }
             }
@@ -924,7 +951,7 @@ class Readability implements LoggerAwareInterface
             }
         }
 
-        $this->logger->debug('Top candidate: '.$topCandidate->getNodePath());
+        $this->logger->debug('Top candidate: ' . $topCandidate->getNodePath());
 
         /*
          * Now that we have the top candidate, look through its siblings for content that might also be related.
@@ -944,7 +971,7 @@ class Readability implements LoggerAwareInterface
             $siblingNode = $siblingNodes->item($s);
             $siblingNodeName = $siblingNode->nodeName;
             $append = false;
-            $this->logger->debug('Looking at sibling node: '.$siblingNode->getNodePath().(($siblingNode->nodeType === XML_ELEMENT_NODE && $siblingNode->hasAttribute('readability')) ? (' with score '.$siblingNode->getAttribute('readability')) : ''));
+            $this->logger->debug('Looking at sibling node: ' . $siblingNode->getNodePath() . (($siblingNode->nodeType === XML_ELEMENT_NODE && $siblingNode->hasAttribute('readability')) ? (' with score ' . $siblingNode->getAttribute('readability')) : ''));
 
             if ($siblingNode->isSameNode($topCandidate)) {
                 $append = true;
@@ -953,7 +980,7 @@ class Readability implements LoggerAwareInterface
             $contentBonus = 0;
 
             // Give a bonus if sibling nodes and top candidates have the same classname.
-            if ($siblingNode->nodeType === XML_ELEMENT_NODE && $siblingNode->getAttribute('class') == $topCandidate->getAttribute('class') && $topCandidate->getAttribute('class') != '') {
+            if ($siblingNode->nodeType === XML_ELEMENT_NODE && $siblingNode->getAttribute('class') === $topCandidate->getAttribute('class') && $topCandidate->getAttribute('class') !== '') {
                 $contentBonus += ((int) $topCandidate->getAttribute('readability')) * 0.2;
             }
 
@@ -973,18 +1000,18 @@ class Readability implements LoggerAwareInterface
             }
 
             if ($append) {
-                $this->logger->debug('Appending node: '.$siblingNode->getNodePath());
+                $this->logger->debug('Appending node: ' . $siblingNode->getNodePath());
 
                 if (strcasecmp($siblingNodeName, 'div') !== 0 && strcasecmp($siblingNodeName, 'p') !== 0) {
                     // We have a node that isn't a common block level element, like a form or td tag. Turn it into a div so it doesn't get filtered out later by accident.
-                    $this->logger->debug('Altering siblingNode "'.$siblingNodeName.'" to "div".');
+                    $this->logger->debug('Altering siblingNode "' . $siblingNodeName . '" to "div".');
                     $nodeToAppend = $this->dom->createElement('div');
 
                     try {
                         $nodeToAppend->setAttribute('alt', $siblingNodeName);
                         $nodeToAppend->innerHTML = $siblingNode->innerHTML;
                     } catch (\Exception $e) {
-                        $this->logger->debug('Could not alter siblingNode "'.$siblingNodeName.'" to "div", reverting to original.');
+                        $this->logger->debug('Could not alter siblingNode "' . $siblingNodeName . '" to "div", reverting to original.');
                         $nodeToAppend = $siblingNode;
                         --$s;
                         --$sl;
@@ -1020,17 +1047,17 @@ class Readability implements LoggerAwareInterface
 
             if ($this->flagIsActive(self::FLAG_STRIP_UNLIKELYS)) {
                 $this->removeFlag(self::FLAG_STRIP_UNLIKELYS);
-                $this->logger->debug('...content is shorter than '.self::MIN_ARTICLE_LENGTH." letters, trying not to strip unlikely content.\n");
+                $this->logger->debug('...content is shorter than ' . self::MIN_ARTICLE_LENGTH . " letters, trying not to strip unlikely content.\n");
 
                 return $this->grabArticle($this->body);
             } elseif ($this->flagIsActive(self::FLAG_WEIGHT_ATTRIBUTES)) {
                 $this->removeFlag(self::FLAG_WEIGHT_ATTRIBUTES);
-                $this->logger->debug('...content is shorter than '.self::MIN_ARTICLE_LENGTH." letters, trying not to weight attributes.\n");
+                $this->logger->debug('...content is shorter than ' . self::MIN_ARTICLE_LENGTH . " letters, trying not to weight attributes.\n");
 
                 return $this->grabArticle($this->body);
             } elseif ($this->flagIsActive(self::FLAG_CLEAN_CONDITIONALLY)) {
                 $this->removeFlag(self::FLAG_CLEAN_CONDITIONALLY);
-                $this->logger->debug('...content is shorter than '.self::MIN_ARTICLE_LENGTH." letters, trying not to clean at all.\n");
+                $this->logger->debug('...content is shorter than ' . self::MIN_ARTICLE_LENGTH . " letters, trying not to clean at all.\n");
 
                 return $this->grabArticle($this->body);
             }
@@ -1051,7 +1078,7 @@ class Readability implements LoggerAwareInterface
      *
      * @return string
      */
-    public function getInnerText(\DOMElement $e = null, $normalizeSpaces = true, $flattenLines = false)
+    public function getInnerText($e, $normalizeSpaces = true, $flattenLines = false)
     {
         if (null === $e || !isset($e->textContent) || $e->textContent === '') {
             return '';
@@ -1073,7 +1100,7 @@ class Readability implements LoggerAwareInterface
      *
      * @param \DOMElement $e
      */
-    public function cleanStyles(\DOMElement $e)
+    public function cleanStyles($e)
     {
         if (!is_object($e)) {
             return;
@@ -1121,7 +1148,7 @@ class Readability implements LoggerAwareInterface
      *
      * @return int
      */
-    public function getLinkDensity(\DOMElement $e, $excludeExternal = false)
+    public function getLinkDensity($e, $excludeExternal = false)
     {
         $links = $e->getElementsByTagName('a');
         $textLength = mb_strlen($this->getInnerText($e, true, true));
@@ -1150,7 +1177,7 @@ class Readability implements LoggerAwareInterface
      *
      * @return int
      */
-    protected function weightAttribute(\DOMElement $element, $attribute)
+    protected function weightAttribute($element, $attribute)
     {
         if (!$element->hasAttribute($attribute)) {
             return 0;
@@ -1160,7 +1187,7 @@ class Readability implements LoggerAwareInterface
         // $attributeValue = trim($element->getAttribute('class')." ".$element->getAttribute('id'));
         $attributeValue = trim($element->getAttribute($attribute));
 
-        if ($attributeValue != '') {
+        if ($attributeValue !== '') {
             if (preg_match($this->regexps['negative'], $attributeValue)) {
                 $weight -= 25;
             }
@@ -1185,7 +1212,7 @@ class Readability implements LoggerAwareInterface
      *
      * @return int
      */
-    public function getWeight(\DOMElement $e)
+    public function getWeight($e)
     {
         if (!$this->flagIsActive(self::FLAG_WEIGHT_ATTRIBUTES)) {
             return 0;
@@ -1205,7 +1232,7 @@ class Readability implements LoggerAwareInterface
      *
      * @param \DOMElement $node
      */
-    public function killBreaks(\DOMElement $node)
+    public function killBreaks($node)
     {
         $html = $node->innerHTML;
         $html = preg_replace($this->regexps['killBreaks'], '<br />', $html);
@@ -1221,7 +1248,7 @@ class Readability implements LoggerAwareInterface
      * @param \DOMElement $e
      * @param string      $tag
      */
-    public function clean(\DOMElement $e, $tag)
+    public function clean($e, $tag)
     {
         $currentItem = null;
         $targetList = $e->getElementsByTagName($tag);
@@ -1232,7 +1259,7 @@ class Readability implements LoggerAwareInterface
             $currentItem = $targetList->item($y);
 
             if ($isEmbed) {
-                $attributeValues = $currentItem->getAttribute('src').' '.$currentItem->getAttribute('href');
+                $attributeValues = $currentItem->getAttribute('src') . ' ' . $currentItem->getAttribute('href');
 
                 // First, check the elements attributes to see if any of them contain known media hosts
                 if (preg_match($this->regexps['media'], $attributeValues)) {
@@ -1257,7 +1284,7 @@ class Readability implements LoggerAwareInterface
      * @param \DOMElement $e
      * @param string      $tag
      */
-    public function cleanConditionally(\DOMElement $e, $tag)
+    public function cleanConditionally($e, $tag)
     {
         if (!$this->flagIsActive(self::FLAG_CLEAN_CONDITIONALLY)) {
             return;
@@ -1277,7 +1304,7 @@ class Readability implements LoggerAwareInterface
             $node = $tagsList->item($i);
             $weight = $this->getWeight($node);
             $contentScore = ($node->hasAttribute('readability')) ? (int) $node->getAttribute('readability') : 0;
-            $this->logger->debug('Start conditional cleaning of '.$node->getNodePath().' (class='.$node->getAttribute('class').'; id='.$node->getAttribute('id').')'.(($node->hasAttribute('readability')) ? (' with score '.$node->getAttribute('readability')) : ''));
+            $this->logger->debug('Start conditional cleaning of ' . $node->getNodePath() . ' (class=' . $node->getAttribute('class') . '; id=' . $node->getAttribute('id') . ')' . (($node->hasAttribute('readability')) ? (' with score ' . $node->getAttribute('readability')) : ''));
 
             if ($weight + $contentScore < 0) {
                 $this->logger->debug('Removing...');
@@ -1313,7 +1340,7 @@ class Readability implements LoggerAwareInterface
                 $toRemove = false;
 
                 if ($this->lightClean) {
-                    if ($li > $p && $tag != 'ul' && $tag != 'ol') {
+                    if ($li > $p && $tag !== 'ul' && $tag !== 'ol') {
                         $this->logger->debug(' too many <li> elements, and parent is not <ul> or <ol>');
                         $toRemove = true;
                     } elseif ($input > floor($p / 3)) {
@@ -1323,10 +1350,10 @@ class Readability implements LoggerAwareInterface
                         $this->logger->debug(' content length less than 6 chars, 0 embeds and either 0 images or more than 2 images');
                         $toRemove = true;
                     } elseif ($weight < 25 && $linkDensity > 0.25) {
-                        $this->logger->debug(' weight is '.$weight.' < 25 and link density is '.sprintf('%.2f', $linkDensity).' > 0.25');
+                        $this->logger->debug(' weight is ' . $weight . ' < 25 and link density is ' . sprintf('%.2f', $linkDensity) . ' > 0.25');
                         $toRemove = true;
                     } elseif ($a > 2 && ($weight >= 25 && $linkDensity > 0.5)) {
-                        $this->logger->debug('  more than 2 links and weight is '.$weight.' > 25 but link density is '.sprintf('%.2f', $linkDensity).' > 0.5');
+                        $this->logger->debug('  more than 2 links and weight is ' . $weight . ' > 25 but link density is ' . sprintf('%.2f', $linkDensity) . ' > 0.5');
                         $toRemove = true;
                     } elseif ($embedCount > 3) {
                         $this->logger->debug(' more than 3 embeds');
@@ -1336,7 +1363,7 @@ class Readability implements LoggerAwareInterface
                     if ($img > $p) {
                         $this->logger->debug(' more image elements than paragraph elements');
                         $toRemove = true;
-                    } elseif ($li > $p && $tag != 'ul' && $tag != 'ol') {
+                    } elseif ($li > $p && $tag !== 'ul' && $tag !== 'ol') {
                         $this->logger->debug('  too many <li> elements, and parent is not <ul> or <ol>');
                         $toRemove = true;
                     } elseif ($input > floor($p / 3)) {
@@ -1346,12 +1373,12 @@ class Readability implements LoggerAwareInterface
                         $this->logger->debug('  content length less than 10 chars and 0 images, or more than 2 images');
                         $toRemove = true;
                     } elseif ($weight < 25 && $linkDensity > 0.2) {
-                        $this->logger->debug('  weight is '.$weight.' lower than 0 and link density is '.sprintf('%.2f', $linkDensity).' > 0.2');
+                        $this->logger->debug('  weight is ' . $weight . ' lower than 0 and link density is ' . sprintf('%.2f', $linkDensity) . ' > 0.2');
                         $toRemove = true;
                     } elseif ($weight >= 25 && $linkDensity > 0.5) {
-                        $this->logger->debug('  weight above 25 but link density is '.sprintf('%.2f', $linkDensity).' > 0.5');
+                        $this->logger->debug('  weight above 25 but link density is ' . sprintf('%.2f', $linkDensity) . ' > 0.5');
                         $toRemove = true;
-                    } elseif (($embedCount == 1 && $contentLength < 75) || $embedCount > 1) {
+                    } elseif (($embedCount === 1 && $contentLength < 75) || $embedCount > 1) {
                         $this->logger->debug('  1 embed and content length smaller than 75 chars, or more than one embed');
                         $toRemove = true;
                     }
@@ -1370,10 +1397,10 @@ class Readability implements LoggerAwareInterface
      *
      * @param \DOMElement $e
      */
-    public function cleanHeaders(\DOMElement $e)
+    public function cleanHeaders($e)
     {
         for ($headerIndex = 1; $headerIndex < 3; ++$headerIndex) {
-            $headers = $e->getElementsByTagName('h'.$headerIndex);
+            $headers = $e->getElementsByTagName('h' . $headerIndex);
 
             for ($i = $headers->length - 1; $i >= 0; --$i) {
                 if ($this->getWeight($headers->item($i)) < 0 || $this->getLinkDensity($headers->item($i)) > 0.33) {

tests/ReadabilityTest.php

@@ -2,9 +2,9 @@
 
 namespace Tests\Readability;
 
-use Readability\Readability;
-use Monolog\Logger;
 use Monolog\Handler\TestHandler;
+use Monolog\Logger;
+use Readability\Readability;
 
 class ReadabilityTest extends \PHPUnit_Framework_TestCase
 {
@@ -22,40 +22,56 @@ class ReadabilityTest extends \PHPUnit_Framework_TestCase
         return $readability;
     }
 
+    /**
+     * @requires extension tidy
+     */
+    public function testConstructDefault()
+    {
+        $readability = $this->getReadability('');
+
+        $this->assertNull($readability->url);
+        $this->assertInstanceOf('DomDocument', $readability->dom);
+    }
+
+    public function testConstructHtml5Parser()
+    {
+        $readability = $this->getReadability('<html/>', 'http://0.0.0.0', 'html5lib');
+
+        $this->assertEquals('http://0.0.0.0', $readability->url);
+        $this->assertInstanceOf('DomDocument', $readability->dom);
+        $this->assertEquals('<html/>', $readability->original_html);
+    }
+
+    /**
+     * @requires extension tidy
+     */
     public function testConstructSimple()
     {
         $readability = $this->getReadability('<html/>', 'http://0.0.0.0');
-        $readability->init();
 
         $this->assertEquals('http://0.0.0.0', $readability->url);
+        $this->assertInstanceOf('DomDocument', $readability->dom);
         $this->assertEquals('<html/>', $readability->original_html);
         $this->assertTrue($readability->tidied);
-
-        $this->assertTrue($this->logHandler->hasDebugThatContains('Parsing URL: http://0.0.0.0'));
-        $this->assertTrue($this->logHandler->hasDebugThatContains('Tidying document'));
-        $this->assertTrue($this->logHandler->hasDebugThatContains('Light clean enabled.'));
     }
 
     public function testConstructDefaultWithoutTidy()
     {
         $readability = $this->getReadability('', null, 'libxml', false);
-        $readability->init();
 
         $this->assertNull($readability->url);
         $this->assertEquals('', $readability->original_html);
         $this->assertFalse($readability->tidied);
 
-        $this->assertTrue($this->logHandler->hasDebugThatContains('Parsing URL: '));
-        $this->assertFalse($this->logHandler->hasDebugThatContains('Tidying document'));
-        $this->assertTrue($this->logHandler->hasDebugThatContains('Light clean enabled.'));
+        $this->assertInstanceOf('DomDocument', $readability->dom);
     }
 
     public function testConstructSimpleWithoutTidy()
     {
         $readability = $this->getReadability('<html/>', 'http://0.0.0.0', 'libxml', false);
-        $readability->init();
 
         $this->assertEquals('http://0.0.0.0', $readability->url);
+        $this->assertInstanceOf('DomDocument', $readability->dom);
         $this->assertEquals('<html/>', $readability->original_html);
         $this->assertFalse($readability->tidied);
     }
@@ -87,7 +103,7 @@ class ReadabilityTest extends \PHPUnit_Framework_TestCase
 
     public function testInitDivP()
     {
-        $readability = $this->getReadability('<div>'.str_repeat('<p>This is the awesome content :)</p>', 7).'</div>', 'http://0.0.0.0');
+        $readability = $this->getReadability('<div>' . str_repeat('<p>This is the awesome content :)</p>', 7) . '</div>', 'http://0.0.0.0');
         $res = $readability->init();
 
         $this->assertTrue($res);
@@ -100,7 +116,7 @@ class ReadabilityTest extends \PHPUnit_Framework_TestCase
 
     public function testInitDiv()
     {
-        $readability = $this->getReadability('<div>'.str_repeat('This is the awesome content :)', 7).'</div>', 'http://0.0.0.0');
+        $readability = $this->getReadability('<div>' . str_repeat('This is the awesome content :)', 7) . '</div>', 'http://0.0.0.0');
         $readability->debug = true;
         $res = $readability->init();
 
@@ -114,7 +130,7 @@ class ReadabilityTest extends \PHPUnit_Framework_TestCase
 
     public function testWithFootnotes()
     {
-        $readability = $this->getReadability('<div>'.str_repeat('<p>This is an awesome text with some links, here there are: <a href="http://0.0.0.0/test.html">the awesome</a></p>', 7).'</div>', 'http://0.0.0.0');
+        $readability = $this->getReadability('<div>' . str_repeat('<p>This is an awesome text with some links, here there are: <a href="http://0.0.0.0/test.html">the awesome</a></p>', 7) . '</div>', 'http://0.0.0.0');
         $readability->debug = true;
         $readability->convertLinksToFootnotes = true;
         $res = $readability->init();
@@ -131,7 +147,7 @@ class ReadabilityTest extends \PHPUnit_Framework_TestCase
 
     public function testStandardClean()
     {
-        $readability = $this->getReadability('<div><h2>Title</h2>'.str_repeat('<p>This is an awesome text with some links, here there are: <a href="http://0.0.0.0/test.html">the awesome</a></p>', 7).'<a href="#nofollow" rel="nofollow">will NOT be removed</a></div>', 'http://0.0.0.0');
+        $readability = $this->getReadability('<div><h2>Title</h2>' . str_repeat('<p>This is an awesome text with some links, here there are: <a href="http://0.0.0.0/test.html">the awesome</a></p>', 7) . '<a href="#nofollow" rel="nofollow">will NOT be removed</a></div>', 'http://0.0.0.0');
         $readability->debug = true;
         $readability->lightClean = false;
         $res = $readability->init();
@@ -148,7 +164,7 @@ class ReadabilityTest extends \PHPUnit_Framework_TestCase
 
     public function testWithIframe()
     {
-        $readability = $this->getReadability('<div><h2>Title</h2>'.str_repeat('<p>This is an awesome text with some links, here there are: <a href="http://0.0.0.0/test.html">the awesome</a></p>', 7).'<p>This is an awesome text with some links, here there are <iframe src="http://youtube.com/test" href="#nofollow" rel="nofollow"></iframe><iframe>http://soundcloud.com/test</iframe></p></div>', 'http://0.0.0.0');
+        $readability = $this->getReadability('<div><h2>Title</h2>' . str_repeat('<p>This is an awesome text with some links, here there are: <a href="http://0.0.0.0/test.html">the awesome</a></p>', 7) . '<p>This is an awesome text with some links, here there are <iframe src="http://youtube.com/test" href="#nofollow" rel="nofollow"></iframe><iframe>http://soundcloud.com/test</iframe></p></div>', 'http://0.0.0.0');
         $readability->debug = true;
         $res = $readability->init();
 
@@ -163,7 +179,7 @@ class ReadabilityTest extends \PHPUnit_Framework_TestCase
 
     public function testWithArticle()
     {
-        $readability = $this->getReadability('<article><p>'.str_repeat('This is an awesome text with some links, here there are: the awesome', 20).'</p><p>This is an awesome text with some links, here there are <iframe src="http://youtube.com/test" href="#nofollow" rel="nofollow"></iframe></p></article>', 'http://0.0.0.0');
+        $readability = $this->getReadability('<article><p>' . str_repeat('This is an awesome text with some links, here there are: the awesome', 20) . '</p><p>This is an awesome text with some links, here there are <iframe src="http://youtube.com/test" href="#nofollow" rel="nofollow"></iframe></p></article>', 'http://0.0.0.0');
         $readability->debug = true;
         $res = $readability->init();
 
@@ -178,7 +194,7 @@ class ReadabilityTest extends \PHPUnit_Framework_TestCase
 
     public function testWithAside()
     {
-        $readability = $this->getReadability('<article>'.str_repeat('<p>This is an awesome text with some links, here there are: <a href="http://0.0.0.0/test.html">the awesome</a></p>', 7).'<footer><aside>'.str_repeat('<p>This is an awesome text with some links, here there are</p>', 8).'</aside></footer></article>', 'http://0.0.0.0');
+        $readability = $this->getReadability('<article>' . str_repeat('<p>This is an awesome text with some links, here there are: <a href="http://0.0.0.0/test.html">the awesome</a></p>', 7) . '<footer><aside>' . str_repeat('<p>This is an awesome text with some links, here there are</p>', 8) . '</aside></footer></article>', 'http://0.0.0.0');
         $readability->debug = true;
         $res = $readability->init();
 
@@ -193,7 +209,7 @@ class ReadabilityTest extends \PHPUnit_Framework_TestCase
 
     public function testWithClasses()
     {
-        $readability = $this->getReadability('<article>'.str_repeat('<p>This is an awesome text with some links, here there are: <a href="http://0.0.0.0/test.html">the awesome</a></p>', 7).'<div style="display:none">'.str_repeat('<p class="clock">This text should be removed</p>', 10).'</div></article>', 'http://0.0.0.0');
+        $readability = $this->getReadability('<article>' . str_repeat('<p>This is an awesome text with some links, here there are: <a href="http://0.0.0.0/test.html">the awesome</a></p>', 7) . '<div style="display:none">' . str_repeat('<p class="clock">This text should be removed</p>', 10) . '</div></article>', 'http://0.0.0.0');
         $readability->debug = true;
         $res = $readability->init();
 
@@ -208,7 +224,7 @@ class ReadabilityTest extends \PHPUnit_Framework_TestCase
 
     public function testWithClassesWithoutLightClean()
     {
-        $readability = $this->getReadability('<article>'.str_repeat('<p>This is an awesome text with some links, here there are: <a href="http://0.0.0.0/test.html">the awesome</a></p>', 7).'<div style="display:none">'.str_repeat('<p class="clock">This text should be removed</p>', 10).'</div></article>', 'http://0.0.0.0');
+        $readability = $this->getReadability('<article>' . str_repeat('<p>This is an awesome text with some links, here there are: <a href="http://0.0.0.0/test.html">the awesome</a></p>', 7) . '<div style="display:none">' . str_repeat('<p class="clock">This text should be removed</p>', 10) . '</div></article>', 'http://0.0.0.0');
         $readability->debug = true;
         $readability->lightClean = false;
         $res = $readability->init();
@@ -224,7 +240,7 @@ class ReadabilityTest extends \PHPUnit_Framework_TestCase
 
     public function testWithTd()
     {
-        $readability = $this->getReadability('<table><tr>'.str_repeat('<td><p>This is an awesome text with some links, here there are the awesome</td>', 7).'</tr></table>', 'http://0.0.0.0');
+        $readability = $this->getReadability('<table><tr>' . str_repeat('<td><p>This is an awesome text with some links, here there are the awesome</td>', 7) . '</tr></table>', 'http://0.0.0.0');
         $readability->debug = true;
         $res = $readability->init();
 
@@ -237,7 +253,7 @@ class ReadabilityTest extends \PHPUnit_Framework_TestCase
 
     public function testWithSameClasses()
     {
-        $readability = $this->getReadability('<article class="awesomecontent">'.str_repeat('<p>This is an awesome text with some links, here there are the awesome</p>', 7).'<div class="awesomecontent">This text is also an awesome text and you should know that !</div></article>', 'http://0.0.0.0');
+        $readability = $this->getReadability('<article class="awesomecontent">' . str_repeat('<p>This is an awesome text with some links, here there are the awesome</p>', 7) . '<div class="awesomecontent">This text is also an awesome text and you should know that !</div></article>', 'http://0.0.0.0');
         $readability->debug = true;
         $res = $readability->init();
 
@@ -251,7 +267,7 @@ class ReadabilityTest extends \PHPUnit_Framework_TestCase
 
     public function testWithScript()
     {
-        $readability = $this->getReadability('<article class="awesomecontent">'.str_repeat('<p>This is an awesome text with some links, here there are the awesome</p>', 7).'<p><script>This text is also an awesome text and you should know that !</script></p></article>', 'http://0.0.0.0');
+        $readability = $this->getReadability('<article class="awesomecontent">' . str_repeat('<p>This is an awesome text with some links, here there are the awesome</p>', 7) . '<p><script>This text is also an awesome text and you should know that !</script></p></article>', 'http://0.0.0.0');
         $readability->debug = true;
         $res = $readability->init();
 
@@ -265,7 +281,7 @@ class ReadabilityTest extends \PHPUnit_Framework_TestCase
 
     public function testTitle()
     {
-        $readability = $this->getReadability('<title>this is my title</title><article class="awesomecontent">'.str_repeat('<p>This is an awesome text with some links, here there are the awesome</p>', 7).'<p></p></article>', 'http://0.0.0.0');
+        $readability = $this->getReadability('<title>this is my title</title><article class="awesomecontent">' . str_repeat('<p>This is an awesome text with some links, here there are the awesome</p>', 7) . '<p></p></article>', 'http://0.0.0.0');
         $readability->debug = true;
         $res = $readability->init();
 
@@ -279,7 +295,7 @@ class ReadabilityTest extends \PHPUnit_Framework_TestCase
 
     public function testTitleWithDash()
     {
-        $readability = $this->getReadability('<title> title2 - title3 </title><article class="awesomecontent">'.str_repeat('<p>This is an awesome text with some links, here there are the awesome</p>', 7).'<p></p></article>', 'http://0.0.0.0');
+        $readability = $this->getReadability('<title> title2 - title3 </title><article class="awesomecontent">' . str_repeat('<p>This is an awesome text with some links, here there are the awesome</p>', 7) . '<p></p></article>', 'http://0.0.0.0');
         $readability->debug = true;
         $res = $readability->init();
 
@@ -293,7 +309,7 @@ class ReadabilityTest extends \PHPUnit_Framework_TestCase
 
     public function testTitleWithDoubleDot()
     {
-        $readability = $this->getReadability('<title> title2 : title3 </title><article class="awesomecontent">'.str_repeat('<p>This is an awesome text with some links, here there are the awesome</p>', 7).'<p></p></article>', 'http://0.0.0.0');
+        $readability = $this->getReadability('<title> title2 : title3 </title><article class="awesomecontent">' . str_repeat('<p>This is an awesome text with some links, here there are the awesome</p>', 7) . '<p></p></article>', 'http://0.0.0.0');
         $readability->debug = true;
         $res = $readability->init();
 
@@ -307,7 +323,7 @@ class ReadabilityTest extends \PHPUnit_Framework_TestCase
 
     public function testTitleTooShortUseH1()
     {
-        $readability = $this->getReadability('<title>too short</title><h1>this is my h1 title !</h1><article class="awesomecontent">'.str_repeat('<p>This is an awesome text with some links, here there are the awesome</p>', 7).'<p></p></article>', 'http://0.0.0.0');
+        $readability = $this->getReadability('<title>too short</title><h1>this is my h1 title !</h1><article class="awesomecontent">' . str_repeat('<p>This is an awesome text with some links, here there are the awesome</p>', 7) . '<p></p></article>', 'http://0.0.0.0');
         $readability->debug = true;
         $res = $readability->init();
 
@@ -319,13 +335,6 @@ class ReadabilityTest extends \PHPUnit_Framework_TestCase
         $this->assertNotContains('This text is also an awesome text and you should know that', $readability->getContent()->innerHTML);
     }
 
-    // public function testConstructParser()
-    // {
-    //     $readability = $this->getReadability('<html/>', 'http://0.0.0.0', 'html5lib');
-
-    //     $this->assertEquals('http://0.0.0.0', $readability->url);
-    // }
-
     // dummy function to be used to the next test
     public function error2Exception($code, $string, $file, $line, $context)
     {
@@ -376,7 +385,7 @@ class ReadabilityTest extends \PHPUnit_Framework_TestCase
     }
 
     /**
-     * This should generate an Exception "DOMElement::setAttribute(): ID post-60 already defined"
+     * This should generate an Exception "DOMElement::setAttribute(): ID post-60 already defined".
      */
     public function testAppendIdAlreadyHere()
     {
@@ -436,7 +445,7 @@ class ReadabilityTest extends \PHPUnit_Framework_TestCase
 
     public function testPostFilters()
     {
-        $readability = $this->getReadability('<div>'.str_repeat('<p>This <b>is</b> the awesome content :)</p>', 7).'</div>', 'http://0.0.0.0');
+        $readability = $this->getReadability('<div>' . str_repeat('<p>This <b>is</b> the awesome content :)</p>', 10) . '</div>', 'http://0.0.0.0');
         $readability->addPostFilter('!<strong[^>]*>(.*?)</strong>!is', '');
 
         $res = $readability->init();
@@ -447,7 +456,9 @@ class ReadabilityTest extends \PHPUnit_Framework_TestCase
 
     public function testPreFilters()
     {
-        $readability = $this->getReadability('<div>'.str_repeat('<p>This <b>is</b> the awesome and WONDERFUL content :)</p>', 7).'</div>', 'http://0.0.0.0');
+        $this->markTestSkipped('Won\'t work until loadHtml() is moved in init() instead of __construct()');
+
+        $readability = $this->getReadability('<div>' . str_repeat('<p>This <b>is</b> the awesome and WONDERFUL content :)</p>', 7) . '</div>', 'http://0.0.0.0');
         $readability->addPreFilter('!<b[^>]*>(.*?)</b>!is', '');
 
         $res = $readability->init();
@@ -455,4 +466,31 @@ class ReadabilityTest extends \PHPUnit_Framework_TestCase
         $this->assertTrue($res);
         $this->assertContains('This the awesome and WONDERFUL content :)', $readability->getContent()->innerHTML);
     }
+
+    public function testChildNodeGoneNull()
+    {
+        // from http://www.ayyaantuu.net/ethiopia-targets-opposition-lawmakers/
+        $html = file_get_contents('tests/fixtures/childNodeGoesNull.html');
+
+        $readability = $this->getReadability($html, 'http://0.0.0.0');
+        $readability->debug = true;
+        $readability->convertLinksToFootnotes = true;
+        $res = $readability->init();
+
+        $this->assertTrue($res);
+    }
+
+    public function testKeepFootnotes()
+    {
+        // from https://www.schreibdichte.de/blog/feed-aggregator-und-spaeter-lesen-dienst-im-team
+        $html = file_get_contents('tests/fixtures/keepFootnotes.html');
+
+        $readability = $this->getReadability($html, 'http://0.0.0.0');
+        $readability->debug = true;
+        $res = $readability->init();
+
+        $this->assertTrue($res);
+        $this->assertContains('<sup id="fnref1:fnfeed_2"><a href="#fn:fnfeed_2" class="footnote-ref">2</a></sup>', $readability->getContent()->innerHTML);
+        $this->assertContains('<a href="#fnref1:fnfeed_2" rev="footnote"', $readability->getContent()->innerHTML);
+    }
 }

tests/fixtures/childNodeGoesNull.html

@@ -0,0 +1,137 @@
+<div id="main-sidebar-container">
+
+            <!-- #main Starts -->
+                        <section id="main">
+<?php if (function_exists ('adinserter')) echo adinserter (1); ?><article class="post-23842 post type-post status-publish format-standard hentry category-ethiopia">
+    <header>
+    <h1 class="title entry-title">Ethiopia targets opposition who met with European lawmakers</h1>  </header>
+<div class="post-meta"><span class="Small"><abbr class="date time published updated" title="2017-01-09T15:25:17-0500">January 9, 2017</abbr>  <span class="Small">in</span> <span class="categories"><a href="http://www.ayyaantuu.net/category/horn-of-africa/ethiopia/" title="View all items in Ethiopia">Ethiopia</a></span>  </div>
+    <section class="entry">
+<div id="fb-root"></div>
+<p><strong>Ethiopia targets opposition who met with European lawmakers</strong></p>
+<p><span class="dateline"><img class="alignleft wp-image-22789 size-full" src="http://www.ayyaantuu.net/wp-content/uploads/2016/12/Ana-Gomes-Merera-Gudina.jpg" alt="Ethiopia targets opposition who met with European lawmakers" width="300" height="160" srcset="http://www.ayyaantuu.net/wp-content/uploads/2016/12/Ana-Gomes-Merera-Gudina.jpg 300w, http://www.ayyaantuu.net/wp-content/uploads/2016/12/Ana-Gomes-Merera-Gudina-200x107.jpg 200w" sizes="(max-width: 300px) 100vw, 300px" />ADDIS ABABA (<a href="http://www.foxnews.com/world/2017/01/09/ethiopia-targets-opposition-who-met-with-european-lawmakers.html">Fox News</a>)  –  </span>Ethiopia says it will not release a leading opposition figure detained under the country’s state of emergency after meeting with European lawmakers in Belgium.</p>
+<!-- WP QUADS Content Ad Plugin v. 1.3.9 -->
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+
+<p>Prime Minister Hailemariam Desalegn told reporters on Monday that Merara Gudina of the Oromo Federalist Congress party instead will face justice.</p>
+<p>The prime minister says “individuals in the European Parliament who are harboring anti-peace elements cannot save those who trespass the law of the country.”</p>
+<p>Merara is one of 22,000 people the prime minister says were detained under the state of emergency declared in October after widespread anti-government protests.</p>
+<p>Merara was arrested immediately after he returned from Belgium. He was accused of meeting with members of an armed Ethiopian opposition group in Brussels, an act banned under the emergency law.</p>
+
+<div style="font-size:0px;height:0px;line-height:0px;margin:0;padding:0;clear:both"></div><aside class="mashsb-container mashsb-main "><div class="mashsb-box"><div class="mashsb-count mash-small" style="float:left;"><div class="counts mashsbcount">0</div><span class="mashsb-sharetext">SHARES</span></div><div class="mashsb-buttons"><a  class="mashicon-facebook mash-small" href="http://www.facebook.com/sharer.php?u=http%3A%2F%2Fwww.ayyaantuu.net%2Fethiopia-targets-opposition-lawmakers%2F" target="_blank" rel="nofollow"><span class="icon"></span><span class="text">Share</span></a><a  class="mashicon-twitter mash-small" href="https://twitter.com/intent/tweet?text=Ethiopia%20targets%20opposition%20who%20met%20with%20European%20lawmakers&url=http://www.ayyaantuu.net/?p=23842&via= ayyaantuu" target="_blank" rel="nofollow"><span class="icon"></span><span class="text">Tweet</span></a><div class="onoffswitch mash-small"></div><div class="secondary-shares" style="display:none;"><a  class="mashicon-subscribe mash-small" href="#" target="_blank" rel="nofollow"><span class="icon"></span><span class="text">Subscribe</span></a><div class="onoffswitch2 mash-small" style="display:none;"></div></div></div>
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+        <?php if (function_exists ('adinserter')) echo adinserter (1); ?><div id="comments">            <h3 id="comments-title">One Response to <em>Ethiopia targets opposition who met with European lawmakers</em></h3>
+            <ol class="commentlist">
+
+        <li id="comment-30772" class="comment even thread-even depth-1">
+
+            <div id="li-comment-30772" class="comment-container">
+
+                                    <div class="avatar"></div>
+
+                <div class="comment-head">
+
+                    <span class="name">Addis Zemen</span>
+                    <span class="date">January 9, 2017 at 5:57 pm</span>
+                    <span class="perma"><a href="http://www.ayyaantuu.net/ethiopia-targets-opposition-lawmakers/#comment-30772" title="Direct link to this comment">#</a></span>
+                    <span class="edit"></span>
+
+                </div><!-- /.comment-head -->
+
+                <div class="comment-entry">
+
+                <p>10,000 people that were areested in Oromia got released. When the people were arrested it was under the assumption “Violence broke out during an Oromo religious festival, and in some instances foreigners seem to have been targeted. ”</p>
+<p>But now many prosecutors agree Violence was not the case. The people at the Erecha celebration thought aliens invaded their country. They thought the foreigners were aliens from another planet.<br />
+Close to a thousand threw themselves of a cliff just because they saw a helicopter flying near them. Many are paralized hundreds died. Now the injured are trying to blame the helicopter pilot for their injuries by saying the pilot caused their injuries by scaring them, flying like an alien abductor UFO would . After the prosecutor agreed it was an accident or suicide that caused the deaths of hundreds of people at the Erecha celebration, the suspected 10,000 prisoners got released. The prosecutors are blaming those that spoke with the European parliament for spreading false information about what really happened at the Erecha celebration.</p>
+
+
+                    <div class="reply">
+                        <a rel='nofollow' class='comment-reply-link' href='http://www.ayyaantuu.net/ethiopia-targets-opposition-lawmakers/?replytocom=30772#respond' onclick='return addComment.moveForm( "comment-30772", "30772", "respond", "23842" )' aria-label='Reply to Addis Zemen'>Reply</a>                   </div><!-- /.reply -->
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tests/fixtures/keepFootnotes.html

@@ -0,0 +1,54 @@
+<article>
+    
+    <h1>Feed-Aggregator und Sp&auml;ter-Lesen-Dienst im Team</h1>
+    
+        <figure>
+            <img src="https://www.schreibdichte.de/content/1-blog/20170505-feed-aggregator-und-spaeter-lesen-dienst-im-team/workflow.png" alt="Feed-Aggregator und Sp&auml;ter-Lesen-Dienst im Team" >
+        </figure>
+    
+    <time datetime="2017-05-05T18:40:00+00:00" >05.05.2017</time>
+    
+    <p> <span class="tag">Tags:</span>
+    <ul class="tag_list">
+                <li><a href="https://www.schreibdichte.de/blog/tag:Software">Software</a></li>
+                <li><a href="https://www.schreibdichte.de/blog/tag:Web">Web</a></li>
+                <li><a href="https://www.schreibdichte.de/blog/tag:Tools">Tools</a></li>
+        </ul>
+    <p>
+    
+    <div class="content">
+    <p>Dank einer Mitteilung <sup id="fnref1:fnfeed_1"><a href="#fn:fnfeed_1" class="footnote-ref">1</a></sup> im OSBN <sup id="fnref1:fnfeed_2"><a href="#fn:fnfeed_2" class="footnote-ref">2</a></sup>, bin ich auf den Feed-Aggregator Miniflux <sup id="fnref1:fnfeed_3"><a href="#fn:fnfeed_3" class="footnote-ref">3</a></sup> aufmerksam geworden. Ich hatte schon lange nach einer Alternative zu Fever <sup id="fnref1:fnfeed_4"><a href="#fn:fnfeed_4" class="footnote-ref">4</a></sup> gesucht, da der Anschein vorlag, dass die Entwicklung nicht mehr weiter ging. Was sich bestätigte.</p>
+    <p>Miniflux ist prima, einfach gehalten und erledigt genau dass, was es machen soll. Zudem wird die Fever-API unterstützt, was bedeutet, dass ich weiterhin meine Feed-Reader nutzen kann, was den Dialog mit Miniflux auf dem Server betrifft. Das ist deshalb interessant, um den Lesestatus oder das Favorisieren von Feeds zentral auf dem Server zu berücksichtigen und nicht lokal. So habe ich sowohl auf dem lokalen Rechner, als auch auf allen mobilen Geräten den gleichen Stand und Status meiner abonnierten Feeds.</p>
+    <p>Für das spätere Lesen von Webseiten, nutze ich seit längerem wallabag <sup id="fnref1:fnfeed_5"><a href="#fn:fnfeed_5" class="footnote-ref">5</a></sup>. Wallabag wird mit Inhalten über den Browser gefüttert. Die Webseiten werden bei der Konservierung von Werbung befreit, damit der reine Text vorliegt. Bilder dagegen nicht und gehen evtl. verloren, wenn es die Quelle mal nicht mehr geben sollte. Ich habe also zwei Orte, an denen Informationen gehalten werden. Miniflux zur Verwaltung von Feed-Nachrichten und Wallabag für Webseiten.</p>
+    <p>Bei einem Update von Miniflux ist mit aufgefallen, dass es nun eine API für Wallabag gibt. Dabei werden alle gespeicherten Feeds von Miniflux an Wallabag übergeben. Eine prima Angelegenheit, da ich jetzt nur noch einen Topf habe, woraus ich meine gesammelten Informationen aus dem Netz entnehme.</p>
+    <p>Miniflux als auch wallabag sind selbst gehostete Web-Applikationen, die auch über den Browser erreichbar sind. Native wallabag-Apps für iOS bzw. Android werden ebenfalls angeboten. Wallabag bietet zusätzlich einen Feed an, um die gesammelten Informationen per Feed-Reader zu lesen. Hierbei drängt sich evtl. die Idee auf, diesen Feed wieder in Miniflux zu abonnieren, da dann zentral alles aus verschiedenen Quellen vorliegt. Hier hätten wir allerdings eine gewisse Redundanz.</p>
+    <p>Ich nutze seit ein paar Monaten Devonthink <sup id="fnref1:fnfeed_6"><a href="#fn:fnfeed_6" class="footnote-ref">6</a></sup> auf dem Mac. Das ist eine lokale Dokumentenverwaltung (DMS), die heute u.a. meine Bücher, Notizen und mein Mail-Archiv verwaltet und ihre Stärke u.a. in der Suche von Informationen hat. Devonthink versteht es auch Feeds zu abonnieren. Für mich war dies der Moment, nun den Feed von wallabag mit all meinen gespeicherten Informationen aus dem Web mit zu integrieren. Ich muss sagen, eine runde Lösung, denn jetzt habe ich für die lokale Suche und das Lesen eine zentrale Stelle.</p>
+    <p>Die Grafik veranschaulicht das Teamplay zwischen Feed-Aggregator Miniflux und wallabag als Später-Lesen-Dienst, zusammengeführt in Devonthink. Ich kenne leider keine Dokumentenverwaltung für Linux oder Windows, die auch Feeds versteht. Wer etwas kennt, bitte melden. Wer zudem etwas zum Thema hören möchte, für dem ist ggf. die Podcast-Folge &quot;Der eigene Workflow&quot; <sup id="fnref1:fnfeed_7"><a href="#fn:fnfeed_7" class="footnote-ref">7</a></sup> interessant.</p>
+    <div class="footnotes">
+    <hr />
+    <ol>
+    <li id="fn:fnfeed_1">
+    <p>Artikel zu Miniflux: <a href="Link"><a href="https://www.robbinaer.info/index.php?post/78">https://www.robbinaer.info/index.php?post/78</a></a>&#160;<a href="#fnref1:fnfeed_1" rev="footnote" class="footnote-backref">&#8617;</a></p>
+    </li>
+    <li id="fn:fnfeed_2">
+    <p>OSBN: <a href="Link"><a href="https://osbn.de">https://osbn.de</a></a>&#160;<a href="#fnref1:fnfeed_2" rev="footnote" class="footnote-backref">&#8617;</a></p>
+    </li>
+    <li id="fn:fnfeed_3">
+    <p>Miniflux: <a href="Link"><a href="https://miniflux.net">https://miniflux.net</a></a>&#160;<a href="#fnref1:fnfeed_3" rev="footnote" class="footnote-backref">&#8617;</a></p>
+    </li>
+    <li id="fn:fnfeed_4">
+    <p>Fever: <a href="Link"><a href="https://feedafever.com">https://feedafever.com</a></a>&#160;<a href="#fnref1:fnfeed_4" rev="footnote" class="footnote-backref">&#8617;</a></p>
+    </li>
+    <li id="fn:fnfeed_5">
+    <p>wallabag: <a href="Link"><a href="https://wallabag.org/de">https://wallabag.org/de</a></a>&#160;<a href="#fnref1:fnfeed_5" rev="footnote" class="footnote-backref">&#8617;</a></p>
+    </li>
+    <li id="fn:fnfeed_6">
+    <p>Devonthink: <a href="Link"><a href="http://www.devontechnologies.com/de/produkte/devonthink/ueberblick.html">http://www.devontechnologies.com/de/produkte/devonthink/ueberblick.html</a></a>&#160;<a href="#fnref1:fnfeed_6" rev="footnote" class="footnote-backref">&#8617;</a></p>
+    </li>
+    <li id="fn:fnfeed_7">
+    <p>Podcast MacMittwoch: <a href="Link"><a href="https://itunes.apple.com/de/podcast/macmittwoch/id1212750085?mt=2ueberblick.html">https://itunes.apple.com/de/podcast/macmittwoch/id1212750085?mt=2ueberblick.html</a></a>&#160;<a href="#fnref1:fnfeed_7" rev="footnote" class="footnote-backref">&#8617;</a></p>
+    </li>
+    </ol>
+    </div></div>
+    
+    </article>