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<?php

// SPDX-FileCopyrightText: 2004-2023 Ryan Parman, Sam Sneddon, Ryan McCue
// SPDX-License-Identifier: BSD-3-Clause

declare(strict_types=1);

namespace SimplePie;

use SimplePie\XML\Declaration\Parser as DeclarationParser;
use XMLParser;

/**
 * Parses XML into something sane
 *
 *
 * This class can be overloaded with {@see \SimplePie\SimplePie::set_parser_class()}
 */
class Parser implements RegistryAware
{
 /** @var int */
 public $error_code;
 /** @var string */
 public $error_string;
 /** @var int */
 public $current_line;
 /** @var int */
 public $current_column;
 /** @var int */
 public $current_byte;
 /** @var string */
 public $separator = ' ';
 /** @var string[] */
 public $namespace = [''];
 /** @var string[] */
 public $element = [''];
 /** @var string[] */
 public $xml_base = [''];
 /** @var bool[] */
 public $xml_base_explicit = [false];
 /** @var string[] */
 public $xml_lang = [''];
 /** @var array<string, mixed> */
 public $data = [];
 /** @var array<array<string, mixed>> */
 public $datas = [[]];
 /** @var int */
 public $current_xhtml_construct = -1;
 /** @var string */
 public $encoding;
 /** @var Registry */
 protected $registry;

/**
     * @return void
     */
    public function set_registry(\SimplePie\Registry $registry)
    {
        $this->registry = $registry;
    }

/**
 * @return bool
 */
 public function parse(string &$data, string $encoding, string $url = '')
 {
 if (class_exists('DOMXpath') && function_exists('Mf2\parse')) {
 $doc = new \DOMDocument();
 @$doc->loadHTML($data);
 $xpath = new \DOMXpath($doc);
 // Check for both h-feed and h-entry, as both a feed with no entries
 // and a list of entries without an h-feed wrapper are both valid.
 $query = '//*[contains(concat(" ", @class, " "), " h-feed ") or '.
 'contains(concat(" ", @class, " "), " h-entry ")]';
 /** @var \DOMNodeList<\DOMElement> $result */
 $result = $xpath->query($query);
 if ($result->length !== 0) {
 return $this->parse_microformats($data, $url);
 }
 }

// Use UTF-8 if we get passed US-ASCII, as every US-ASCII character is a UTF-8 character
        if (strtoupper($encoding) === 'US-ASCII') {
            $this->encoding = 'UTF-8';
        } else {
            $this->encoding = $encoding;
        }

// Strip BOM:
        // UTF-32 Big Endian BOM
        if (substr($data, 0, 4) === "\x00\x00\xFE\xFF") {
            $data = substr($data, 4);
        }
        // UTF-32 Little Endian BOM
        elseif (substr($data, 0, 4) === "\xFF\xFE\x00\x00") {
            $data = substr($data, 4);
        }
        // UTF-16 Big Endian BOM
        elseif (substr($data, 0, 2) === "\xFE\xFF") {
            $data = substr($data, 2);
        }
        // UTF-16 Little Endian BOM
        elseif (substr($data, 0, 2) === "\xFF\xFE") {
            $data = substr($data, 2);
        }
        // UTF-8 BOM
        elseif (substr($data, 0, 3) === "\xEF\xBB\xBF") {
            $data = substr($data, 3);
        }

if (substr($data, 0, 5) === '<?xml' && strspn(substr($data, 5, 1), "\x09\x0A\x0D\x20") && ($pos = strpos($data, '?>')) !== false) {
 $declaration = $this->registry->create(DeclarationParser::class, [substr($data, 5, $pos - 5)]);
 if ($declaration->parse()) {
 $data = substr($data, $pos + 2);
 $data = '<?xml version="' . $declaration->version . '" encoding="' . $encoding . '" standalone="' . (($declaration->standalone) ? 'yes' : 'no') . '"?>' . "\n" .
 self::set_doctype($data);
 } else {
 $this->error_string = 'SimplePie bug! Please report this!';
 return false;
 }
 } else {
 $data = self::set_doctype($data);
 }

$return = true;

static $xml_is_sane = null;
 if ($xml_is_sane === null) {
 $parser_check = xml_parser_create();
 xml_parse_into_struct($parser_check, '<foo>&amp;</foo>', $values);
 if (\PHP_VERSION_ID < 80000) {
 xml_parser_free($parser_check);
 }
 $xml_is_sane = isset($values[0]['value']);
 }

// Create the parser
        if ($xml_is_sane) {
            $xml = xml_parser_create_ns($this->encoding, $this->separator);
            xml_parser_set_option($xml, XML_OPTION_SKIP_WHITE, 1);
            xml_parser_set_option($xml, XML_OPTION_CASE_FOLDING, 0);
            xml_set_character_data_handler($xml, [$this, 'cdata']);
            xml_set_element_handler($xml, [$this, 'tag_open'], [$this, 'tag_close']);

// Parse!
            $wrapper = @is_writable(sys_get_temp_dir()) ? 'php://temp' : 'php://memory';
            if (($stream = fopen($wrapper, 'r+')) &&
                fwrite($stream, $data) &&
                rewind($stream)) {
                //Parse by chunks not to use too much memory
                do {
                    $stream_data = (string) fread($stream, 1048576);

if (!xml_parse($xml, $stream_data, feof($stream))) {
                        $this->error_code = xml_get_error_code($xml);
                        $this->error_string = xml_error_string($this->error_code) ?: "Unknown";
                        $return = false;
                        break;
                    }
                } while (!feof($stream));
                fclose($stream);
            } else {
                $return = false;
            }

$this->current_line = xml_get_current_line_number($xml);
 $this->current_column = xml_get_current_column_number($xml);
 $this->current_byte = xml_get_current_byte_index($xml);
 if (\PHP_VERSION_ID < 80000) {
 xml_parser_free($xml);
 }
 return $return;
 }

libxml_clear_errors();
        $xml = new \XMLReader();
        $xml->xml($data);
        while (@$xml->read()) {
            switch ($xml->nodeType) {
                case \XMLReader::END_ELEMENT:
                    if ($xml->namespaceURI !== '') {
                        $tagName = $xml->namespaceURI . $this->separator . $xml->localName;
                    } else {
                        $tagName = $xml->localName;
                    }
                    $this->tag_close(null, $tagName);
                    break;
                case \XMLReader::ELEMENT:
                    $empty = $xml->isEmptyElement;
                    if ($xml->namespaceURI !== '') {
                        $tagName = $xml->namespaceURI . $this->separator . $xml->localName;
                    } else {
                        $tagName = $xml->localName;
                    }
                    $attributes = [];
                    while ($xml->moveToNextAttribute()) {
                        if ($xml->namespaceURI !== '') {
                            $attrName = $xml->namespaceURI . $this->separator . $xml->localName;
                        } else {
                            $attrName = $xml->localName;
                        }
                        $attributes[$attrName] = $xml->value;
                    }
                    $this->tag_open(null, $tagName, $attributes);
                    if ($empty) {
                        $this->tag_close(null, $tagName);
                    }
                    break;
                case \XMLReader::TEXT:

case \XMLReader::CDATA:
                    $this->cdata(null, $xml->value);
                    break;
            }
        }
        if ($error = libxml_get_last_error()) {
            $this->error_code = $error->code;
            $this->error_string = $error->message;
            $this->current_line = $error->line;
            $this->current_column = $error->column;
            return false;
        }

return true;
    }

/**
     * @return int
     */
    public function get_error_code()
    {
        return $this->error_code;
    }

/**
     * @return string
     */
    public function get_error_string()
    {
        return $this->error_string;
    }

/**
     * @return int
     */
    public function get_current_line()
    {
        return $this->current_line;
    }

/**
     * @return int
     */
    public function get_current_column()
    {
        return $this->current_column;
    }

/**
     * @return int
     */
    public function get_current_byte()
    {
        return $this->current_byte;
    }

/**
 * @return array<string, mixed>
 */
 public function get_data()
 {
 return $this->data;
 }

/**
 * @param XMLParser|resource|null $parser
 * @param array<string, string> $attributes
 * @return void
 */
 public function tag_open($parser, string $tag, array $attributes)
 {
 [$this->namespace[], $this->element[]] = $this->split_ns($tag);

$attribs = [];
        foreach ($attributes as $name => $value) {
            [$attrib_namespace, $attribute] = $this->split_ns($name);
            $attribs[$attrib_namespace][$attribute] = $value;
        }

if (isset($attribs[\SimplePie\SimplePie::NAMESPACE_XML]['base'])) {
            $base = $this->registry->call(Misc::class, 'absolutize_url', [$attribs[\SimplePie\SimplePie::NAMESPACE_XML]['base'], end($this->xml_base)]);
            if ($base !== false) {
                $this->xml_base[] = $base;
                $this->xml_base_explicit[] = true;
            }
        } else {
            $this->xml_base[] = end($this->xml_base) ?: '';
            $this->xml_base_explicit[] = end($this->xml_base_explicit);
        }

if (isset($attribs[\SimplePie\SimplePie::NAMESPACE_XML]['lang'])) {
            $this->xml_lang[] = $attribs[\SimplePie\SimplePie::NAMESPACE_XML]['lang'];
        } else {
            $this->xml_lang[] = end($this->xml_lang) ?: '';
        }

if ($this->current_xhtml_construct >= 0) {
 $this->current_xhtml_construct++;
 if (end($this->namespace) === \SimplePie\SimplePie::NAMESPACE_XHTML) {
 $this->data['data'] .= '<' . end($this->element);
 if (isset($attribs[''])) {
 foreach ($attribs[''] as $name => $value) {
 $this->data['data'] .= ' ' . $name . '="' . htmlspecialchars($value, ENT_COMPAT, $this->encoding) . '"';
 }
 }
 $this->data['data'] .= '>';
 }
 } else {
 $this->datas[] = &$this->data;
 $this->data = &$this->data['child'][end($this->namespace)][end($this->element)][];
 $this->data = ['data' => '', 'attribs' => $attribs, 'xml_base' => end($this->xml_base), 'xml_base_explicit' => end($this->xml_base_explicit), 'xml_lang' => end($this->xml_lang)];
 if ((end($this->namespace) === \SimplePie\SimplePie::NAMESPACE_ATOM_03 && in_array(end($this->element), ['title', 'tagline', 'copyright', 'info', 'summary', 'content']) && isset($attribs['']['mode']) && $attribs['']['mode'] === 'xml')
 || (end($this->namespace) === \SimplePie\SimplePie::NAMESPACE_ATOM_10 && in_array(end($this->element), ['rights', 'subtitle', 'summary', 'info', 'title', 'content']) && isset($attribs['']['type']) && $attribs['']['type'] === 'xhtml')
 || (end($this->namespace) === \SimplePie\SimplePie::NAMESPACE_RSS_20 && in_array(end($this->element), ['title']))
 || (end($this->namespace) === \SimplePie\SimplePie::NAMESPACE_RSS_090 && in_array(end($this->element), ['title']))
 || (end($this->namespace) === \SimplePie\SimplePie::NAMESPACE_RSS_10 && in_array(end($this->element), ['title']))) {
 $this->current_xhtml_construct = 0;
 }
 }
 }

/**
     * @param XMLParser|resource|null $parser
     * @return void
     */
    public function cdata($parser, string $cdata)
    {
        if ($this->current_xhtml_construct >= 0) {
            $this->data['data'] .= htmlspecialchars($cdata, ENT_QUOTES, $this->encoding);
        } else {
            $this->data['data'] .= $cdata;
        }
    }

/**
 * @param XMLParser|resource|null $parser
 * @return void
 */
 public function tag_close($parser, string $tag)
 {
 if ($this->current_xhtml_construct >= 0) {
 $this->current_xhtml_construct--;
 if (end($this->namespace) === \SimplePie\SimplePie::NAMESPACE_XHTML && !in_array(end($this->element), ['area', 'base', 'basefont', 'br', 'col', 'frame', 'hr', 'img', 'input', 'isindex', 'link', 'meta', 'param'])) {
 $this->data['data'] .= '</' . end($this->element) . '>';
 }
 }
 if ($this->current_xhtml_construct === -1) {
 $this->data = &$this->datas[count($this->datas) - 1];
 array_pop($this->datas);
 }

array_pop($this->element);
        array_pop($this->namespace);
        array_pop($this->xml_base);
        array_pop($this->xml_base_explicit);
        array_pop($this->xml_lang);
    }

/**
     * @return array{string, string}
     */
    public function split_ns(string $string)
    {
        static $cache = [];
        if (!isset($cache[$string])) {
            if ($pos = strpos($string, $this->separator)) {
                static $separator_length;
                if (!$separator_length) {
                    $separator_length = strlen($this->separator);
                }
                $namespace = substr($string, 0, $pos);
                $local_name = substr($string, $pos + $separator_length);
                if (strtolower($namespace) === \SimplePie\SimplePie::NAMESPACE_ITUNES) {
                    $namespace = \SimplePie\SimplePie::NAMESPACE_ITUNES;
                }

// Normalize the Media RSS namespaces
                if ($namespace === \SimplePie\SimplePie::NAMESPACE_MEDIARSS_WRONG ||
                    $namespace === \SimplePie\SimplePie::NAMESPACE_MEDIARSS_WRONG2 ||
                    $namespace === \SimplePie\SimplePie::NAMESPACE_MEDIARSS_WRONG3 ||
                    $namespace === \SimplePie\SimplePie::NAMESPACE_MEDIARSS_WRONG4 ||
                    $namespace === \SimplePie\SimplePie::NAMESPACE_MEDIARSS_WRONG5) {
                    $namespace = \SimplePie\SimplePie::NAMESPACE_MEDIARSS;
                }
                $cache[$string] = [$namespace, $local_name];
            } else {
                $cache[$string] = ['', $string];
            }
        }
        return $cache[$string];
    }

/**
 * @param array<string, mixed> $data
 */
 private function parse_hcard(array $data, bool $category = false): string
 {
 $name = '';
 $link = '';
 // Check if h-card is set and pass that information on in the link.
 if (isset($data['type']) && in_array('h-card', $data['type'])) {
 if (isset($data['properties']['name'][0])) {
 $name = $data['properties']['name'][0];
 }
 if (isset($data['properties']['url'][0])) {
 $link = $data['properties']['url'][0];
 if ($name === '') {
 $name = $link;
 } else {
 // can't have commas in categories.
 $name = str_replace(',', '', $name);
 }
 $person_tag = $category ? '' : '';
 return '<a class="h-card" href="'.$link.'">'.$person_tag.$name.'</a>';
 }
 }
 return $data['value'] ?? '';
 }

/**
 * @return true
 */
 private function parse_microformats(string &$data, string $url): bool
 {
 // For PHPStan, we already check that in call site.
 \assert(function_exists('Mf2\parse'));
 \assert(function_exists('Mf2\fetch'));
 $feed_title = '';
 $feed_author = null;
 $author_cache = [];
 $items = [];
 $entries = [];
 $mf = \Mf2\parse($data, $url);
 // First look for an h-feed.
 $h_feed = [];
 foreach ($mf['items'] as $mf_item) {
 if (in_array('h-feed', $mf_item['type'])) {
 $h_feed = $mf_item;
 break;
 }
 // Also look for h-feed or h-entry in the children of each top level item.
 if (!isset($mf_item['children'][0]['type'])) {
 continue;
 }
 if (in_array('h-feed', $mf_item['children'][0]['type'])) {
 $h_feed = $mf_item['children'][0];
 // In this case the parent of the h-feed may be an h-card, so use it as
 // the feed_author.
 if (in_array('h-card', $mf_item['type'])) {
 $feed_author = $mf_item;
 }
 break;
 } elseif (in_array('h-entry', $mf_item['children'][0]['type'])) {
 $entries = $mf_item['children'];
 // In this case the parent of the h-entry list may be an h-card, so use
 // it as the feed_author.
 if (in_array('h-card', $mf_item['type'])) {
 $feed_author = $mf_item;
 }
 break;
 }
 }
 if (isset($h_feed['children'])) {
 $entries = $h_feed['children'];
 // Also set the feed title and store author from the h-feed if available.
 if (isset($mf['items'][0]['properties']['name'][0])) {
 $feed_title = $mf['items'][0]['properties']['name'][0];
 }
 if (isset($mf['items'][0]['properties']['author'][0])) {
 $feed_author = $mf['items'][0]['properties']['author'][0];
 }
 } elseif (count($entries) === 0) {
 $entries = $mf['items'];
 }
 for ($i = 0; $i < count($entries); $i++) {
 $entry = $entries[$i];
 if (in_array('h-entry', $entry['type'])) {
 $item = [];
 $title = '';
 $description = '';
 if (isset($entry['properties']['url'][0])) {
 $link = $entry['properties']['url'][0];
 if (isset($link['value'])) {
 $link = $link['value'];
 }
 $item['link'] = [['data' => $link]];
 }
 if (isset($entry['properties']['uid'][0])) {
 $guid = $entry['properties']['uid'][0];
 if (isset($guid['value'])) {
 $guid = $guid['value'];
 }
 $item['guid'] = [['data' => $guid]];
 }
 if (isset($entry['properties']['name'][0])) {
 $title = $entry['properties']['name'][0];
 if (isset($title['value'])) {
 $title = $title['value'];
 }
 $item['title'] = [['data' => $title]];
 }
 if (isset($entry['properties']['author'][0]) || isset($feed_author)) {
 // author is a special case, it can be plain text or an h-card array.
 // If it's plain text it can also be a url that should be followed to
 // get the actual h-card.
 $author = $entry['properties']['author'][0] ?? $feed_author;
 if (!is_string($author)) {
 $author = $this->parse_hcard($author);
 } elseif (strpos($author, 'http') === 0) {
 if (isset($author_cache[$author])) {
 $author = $author_cache[$author];
 } else {
 if ($mf = \Mf2\fetch($author)) {
 foreach ($mf['items'] as $hcard) {
 // Only interested in an h-card by itself in this case.
 if (!in_array('h-card', $hcard['type'])) {
 continue;
 }
 // It must have a url property matching what we fetched.
 if (!isset($hcard['properties']['url']) ||
 !(in_array($author, $hcard['properties']['url']))) {
 continue;
 }
 // Save parse_hcard the trouble of finding the correct url.
 $hcard['properties']['url'][0] = $author;
 // Cache this h-card for the next h-entry to check.
 $author_cache[$author] = $this->parse_hcard($hcard);
 $author = $author_cache[$author];
 break;
 }
 }
 }
 }
 $item['author'] = [['data' => $author]];
 }
 if (isset($entry['properties']['photo'][0])) {
 // If a photo is also in content, don't need to add it again here.
 $content = '';
 if (isset($entry['properties']['content'][0]['html'])) {
 $content = $entry['properties']['content'][0]['html'];
 }
 $photo_list = [];
 for ($j = 0; $j < count($entry['properties']['photo']); $j++) {
 $photo = $entry['properties']['photo'][$j];
 if (!empty($photo) && strpos($content, $photo) === false) {
 $photo_list[] = $photo;
 }
 }
 // When there's more than one photo show the first and use a lightbox.
 // Need a permanent, unique name for the image set, but don't have
 // anything unique except for the content itself, so use that.
 $count = count($photo_list);
 if ($count > 1) {
 $image_set_id = preg_replace('/[[:^alnum:]]/', '', $photo_list[0]);
 $description = '';
 for ($j = 0; $j < $count; $j++) {
 $hidden = $j === 0 ? '' : 'class="hidden" ';
 $description .= '<a href="'.$photo_list[$j].'" '.$hidden.
 'data-lightbox="image-set-'.$image_set_id.'">'.
 '<img src="'.$photo_list[$j].'"></a>';
 }
 $description .= ' '.$count.' photos';
 } elseif ($count == 1) {
 $description = '<img src="'.$photo_list[0].'">';
 }
 }
 if (isset($entry['properties']['content'][0]['html'])) {
 // e-content['value'] is the same as p-name when they are on the same
 // element. Use this to replace title with a strip_tags version so
 // that alt text from images is not included in the title.
 if ($entry['properties']['content'][0]['value'] === $title) {
 $title = strip_tags($entry['properties']['content'][0]['html']);
 $item['title'] = [['data' => $title]];
 }
 $description .= $entry['properties']['content'][0]['html'];
 if (isset($entry['properties']['in-reply-to'][0])) {
 $in_reply_to = '';
 if (is_string($entry['properties']['in-reply-to'][0])) {
 $in_reply_to = $entry['properties']['in-reply-to'][0];
 } elseif (isset($entry['properties']['in-reply-to'][0]['value'])) {
 $in_reply_to = $entry['properties']['in-reply-to'][0]['value'];
 }
 if ($in_reply_to !== '') {
 $description .= ' '.
 '<a href="'.$in_reply_to.'">'.$in_reply_to.'</a>';
 }
 }
 $item['description'] = [['data' => $description]];
 }
 if (isset($entry['properties']['category'])) {
 $category_csv = '';
 // Categories can also contain h-cards.
 foreach ($entry['properties']['category'] as $category) {
 if ($category_csv !== '') {
 $category_csv .= ', ';
 }
 if (is_string($category)) {
 // Can't have commas in categories.
 $category_csv .= str_replace(',', '', $category);
 } else {
 $category_csv .= $this->parse_hcard($category, true);
 }
 }
 $item['category'] = [['data' => $category_csv]];
 }
 if (isset($entry['properties']['published'][0])) {
 $timestamp = strtotime($entry['properties']['published'][0]);
 $pub_date = date('F j Y g:ia', $timestamp).' GMT';
 $item['pubDate'] = [['data' => $pub_date]];
 }
 // The title and description are set to the empty string to represent
 // a deleted item (which also makes it an invalid rss item).
 if (isset($entry['properties']['deleted'][0])) {
 $item['title'] = [['data' => '']];
 $item['description'] = [['data' => '']];
 }
 $items[] = ['child' => ['' => $item]];
 }
 }
 // Mimic RSS data format when storing microformats.
 $link = [['data' => $url]];
 $image = '';
 if (!is_string($feed_author) &&
 isset($feed_author['properties']['photo'][0])) {
 $image = [['child' => ['' => ['url' =>
 [['data' => $feed_author['properties']['photo'][0]]]]]]];
 }
 // Use the name given for the h-feed, or get the title from the html.
 if ($feed_title !== '') {
 $feed_title = [['data' => htmlspecialchars($feed_title)]];
 } elseif ($position = strpos($data, '<title>')) {
 $start = $position < 200 ? 0 : $position - 200;
 $check = substr($data, $start, 400);
 $matches = [];
 if (preg_match('/<title>(.+)<\/title>/', $check, $matches)) {
 $feed_title = [['data' => htmlspecialchars($matches[1])]];
 }
 }
 $channel = ['channel' => [['child' => ['' =>
 ['link' => $link, 'image' => $image, 'title' => $feed_title,
 'item' => $items]]]]];
 $rss = [['attribs' => ['' => ['version' => '2.0']],
 'child' => ['' => $channel]]];
 $this->data = ['child' => ['' => ['rss' => $rss]]];
 return true;
 }

private static function set_doctype(string $data): string
 {
 // Strip DOCTYPE except if containing an [internal subset]
 $data = preg_replace('/^\\s*<!DOCTYPE\\s[^>\\[\\]]*>\s*/', '', $data) ?? $data;
 // Declare HTML entities only if no remaining DOCTYPE
 $doctype = preg_match('/^\\s*<!DOCTYPE\\s/', $data) ? '' : self::declare_html_entities();
 return $doctype . $data;
 }

private static function declare_html_entities(): string
 {
 // This is required because the RSS specification says that entity-encoded
 // html is allowed, but the xml specification says they must be declared.
 return '<!DOCTYPE rss [ <!ENTITY nbsp "&#x00A0;"> <!ENTITY iexcl "&#x00A1;"> <!ENTITY cent "&#x00A2;"> <!ENTITY pound "&#x00A3;"> <!ENTITY curren "&#x00A4;"> <!ENTITY yen "&#x00A5;"> <!ENTITY brvbar "&#x00A6;"> <!ENTITY sect "&#x00A7;"> <!ENTITY uml "&#x00A8;"> <!ENTITY copy "&#x00A9;"> <!ENTITY ordf "&#x00AA;"> <!ENTITY laquo "&#x00AB;"> <!ENTITY not "&#x00AC;"> <!ENTITY shy "&#x00AD;"> <!ENTITY reg "&#x00AE;"> <!ENTITY macr "&#x00AF;"> <!ENTITY deg "&#x00B0;"> <!ENTITY plusmn "&#x00B1;"> <!ENTITY sup2 "&#x00B2;"> <!ENTITY sup3 "&#x00B3;"> <!ENTITY acute "&#x00B4;"> <!ENTITY micro "&#x00B5;"> <!ENTITY para "&#x00B6;"> <!ENTITY middot "&#x00B7;"> <!ENTITY cedil "&#x00B8;"> <!ENTITY sup1 "&#x00B9;"> <!ENTITY ordm "&#x00BA;"> <!ENTITY raquo "&#x00BB;"> <!ENTITY frac14 "&#x00BC;"> <!ENTITY frac12 "&#x00BD;"> <!ENTITY frac34 "&#x00BE;"> <!ENTITY iquest "&#x00BF;"> <!ENTITY Agrave "&#x00C0;"> <!ENTITY Aacute "&#x00C1;"> <!ENTITY Acirc "&#x00C2;"> <!ENTITY Atilde "&#x00C3;"> <!ENTITY Auml "&#x00C4;"> <!ENTITY Aring "&#x00C5;"> <!ENTITY AElig "&#x00C6;"> <!ENTITY Ccedil "&#x00C7;"> <!ENTITY Egrave "&#x00C8;"> <!ENTITY Eacute "&#x00C9;"> <!ENTITY Ecirc "&#x00CA;"> <!ENTITY Euml "&#x00CB;"> <!ENTITY Igrave "&#x00CC;"> <!ENTITY Iacute "&#x00CD;"> <!ENTITY Icirc "&#x00CE;"> <!ENTITY Iuml "&#x00CF;"> <!ENTITY ETH "&#x00D0;"> <!ENTITY Ntilde "&#x00D1;"> <!ENTITY Ograve "&#x00D2;"> <!ENTITY Oacute "&#x00D3;"> <!ENTITY Ocirc "&#x00D4;"> <!ENTITY Otilde "&#x00D5;"> <!ENTITY Ouml "&#x00D6;"> <!ENTITY times "&#x00D7;"> <!ENTITY Oslash "&#x00D8;"> <!ENTITY Ugrave "&#x00D9;"> <!ENTITY Uacute "&#x00DA;"> <!ENTITY Ucirc "&#x00DB;"> <!ENTITY Uuml "&#x00DC;"> <!ENTITY Yacute "&#x00DD;"> <!ENTITY THORN "&#x00DE;"> <!ENTITY szlig "&#x00DF;"> <!ENTITY agrave "&#x00E0;"> <!ENTITY aacute "&#x00E1;"> <!ENTITY acirc "&#x00E2;"> <!ENTITY atilde "&#x00E3;"> <!ENTITY auml "&#x00E4;"> <!ENTITY aring "&#x00E5;"> <!ENTITY aelig "&#x00E6;"> <!ENTITY ccedil "&#x00E7;"> <!ENTITY egrave "&#x00E8;"> <!ENTITY eacute "&#x00E9;"> <!ENTITY ecirc "&#x00EA;"> <!ENTITY euml "&#x00EB;"> <!ENTITY igrave "&#x00EC;"> <!ENTITY iacute "&#x00ED;"> <!ENTITY icirc "&#x00EE;"> <!ENTITY iuml "&#x00EF;"> <!ENTITY eth "&#x00F0;"> <!ENTITY ntilde "&#x00F1;"> <!ENTITY ograve "&#x00F2;"> <!ENTITY oacute "&#x00F3;"> <!ENTITY ocirc "&#x00F4;"> <!ENTITY otilde "&#x00F5;"> <!ENTITY ouml "&#x00F6;"> <!ENTITY divide "&#x00F7;"> <!ENTITY oslash "&#x00F8;"> <!ENTITY ugrave "&#x00F9;"> <!ENTITY uacute "&#x00FA;"> <!ENTITY ucirc "&#x00FB;"> <!ENTITY uuml "&#x00FC;"> <!ENTITY yacute "&#x00FD;"> <!ENTITY thorn "&#x00FE;"> <!ENTITY yuml "&#x00FF;"> <!ENTITY OElig "&#x0152;"> <!ENTITY oelig "&#x0153;"> <!ENTITY Scaron "&#x0160;"> <!ENTITY scaron "&#x0161;"> <!ENTITY Yuml "&#x0178;"> <!ENTITY fnof "&#x0192;"> <!ENTITY circ "&#x02C6;"> <!ENTITY tilde "&#x02DC;"> <!ENTITY Alpha "&#x0391;"> <!ENTITY Beta "&#x0392;"> <!ENTITY Gamma "&#x0393;"> <!ENTITY Epsilon "&#x0395;"> <!ENTITY Zeta "&#x0396;"> <!ENTITY Eta "&#x0397;"> <!ENTITY Theta "&#x0398;"> <!ENTITY Iota "&#x0399;"> <!ENTITY Kappa "&#x039A;"> <!ENTITY Lambda "&#x039B;"> <!ENTITY Mu "&#x039C;"> <!ENTITY Nu "&#x039D;"> <!ENTITY Xi "&#x039E;"> <!ENTITY Omicron "&#x039F;"> <!ENTITY Pi "&#x03A0;"> <!ENTITY Rho "&#x03A1;"> <!ENTITY Sigma "&#x03A3;"> <!ENTITY Tau "&#x03A4;"> <!ENTITY Upsilon "&#x03A5;"> <!ENTITY Phi "&#x03A6;"> <!ENTITY Chi "&#x03A7;"> <!ENTITY Psi "&#x03A8;"> <!ENTITY Omega "&#x03A9;"> <!ENTITY alpha "&#x03B1;"> <!ENTITY beta "&#x03B2;"> <!ENTITY gamma "&#x03B3;"> <!ENTITY delta "&#x03B4;"> <!ENTITY epsilon "&#x03B5;"> <!ENTITY zeta "&#x03B6;"> <!ENTITY eta "&#x03B7;"> <!ENTITY theta "&#x03B8;"> <!ENTITY iota "&#x03B9;"> <!ENTITY kappa "&#x03BA;"> <!ENTITY lambda "&#x03BB;"> <!ENTITY mu "&#x03BC;"> <!ENTITY nu "&#x03BD;"> <!ENTITY xi "&#x03BE;"> <!ENTITY omicron "&#x03BF;"> <!ENTITY pi "&#x03C0;"> <!ENTITY rho "&#x03C1;"> <!ENTITY sigmaf "&#x03C2;"> <!ENTITY sigma "&#x03C3;"> <!ENTITY tau "&#x03C4;"> <!ENTITY upsilon "&#x03C5;"> <!ENTITY phi "&#x03C6;"> <!ENTITY chi "&#x03C7;"> <!ENTITY psi "&#x03C8;"> <!ENTITY omega "&#x03C9;"> <!ENTITY thetasym "&#x03D1;"> <!ENTITY upsih "&#x03D2;"> <!ENTITY piv "&#x03D6;"> <!ENTITY ensp "&#x2002;"> <!ENTITY emsp "&#x2003;"> <!ENTITY thinsp "&#x2009;"> <!ENTITY zwnj "&#x200C;"> <!ENTITY zwj "&#x200D;"> <!ENTITY lrm "&#x200E;"> <!ENTITY rlm "&#x200F;"> <!ENTITY ndash "&#x2013;"> <!ENTITY mdash "&#x2014;"> <!ENTITY lsquo "&#x2018;"> <!ENTITY rsquo "&#x2019;"> <!ENTITY sbquo "&#x201A;"> <!ENTITY ldquo "&#x201C;"> <!ENTITY rdquo "&#x201D;"> <!ENTITY bdquo "&#x201E;"> <!ENTITY dagger "&#x2020;"> <!ENTITY Dagger "&#x2021;"> <!ENTITY bull "&#x2022;"> <!ENTITY hellip "&#x2026;"> <!ENTITY permil "&#x2030;"> <!ENTITY prime "&#x2032;"> <!ENTITY Prime "&#x2033;"> <!ENTITY lsaquo "&#x2039;"> <!ENTITY rsaquo "&#x203A;"> <!ENTITY oline "&#x203E;"> <!ENTITY frasl "&#x2044;"> <!ENTITY euro "&#x20AC;"> <!ENTITY image "&#x2111;"> <!ENTITY weierp "&#x2118;"> <!ENTITY real "&#x211C;"> <!ENTITY trade "&#x2122;"> <!ENTITY alefsym "&#x2135;"> <!ENTITY larr "&#x2190;"> <!ENTITY uarr "&#x2191;"> <!ENTITY rarr "&#x2192;"> <!ENTITY darr "&#x2193;"> <!ENTITY harr "&#x2194;"> <!ENTITY crarr "&#x21B5;"> <!ENTITY lArr "&#x21D0;"> <!ENTITY uArr "&#x21D1;"> <!ENTITY rArr "&#x21D2;"> <!ENTITY dArr "&#x21D3;"> <!ENTITY hArr "&#x21D4;"> <!ENTITY forall "&#x2200;"> <!ENTITY part "&#x2202;"> <!ENTITY exist "&#x2203;"> <!ENTITY empty "&#x2205;"> <!ENTITY nabla "&#x2207;"> <!ENTITY isin "&#x2208;"> <!ENTITY notin "&#x2209;"> <!ENTITY ni "&#x220B;"> <!ENTITY prod "&#x220F;"> <!ENTITY sum "&#x2211;"> <!ENTITY minus "&#x2212;"> <!ENTITY lowast "&#x2217;"> <!ENTITY radic "&#x221A;"> <!ENTITY prop "&#x221D;"> <!ENTITY infin "&#x221E;"> <!ENTITY ang "&#x2220;"> <!ENTITY and "&#x2227;"> <!ENTITY or "&#x2228;"> <!ENTITY cap "&#x2229;"> <!ENTITY cup "&#x222A;"> <!ENTITY int "&#x222B;"> <!ENTITY there4 "&#x2234;"> <!ENTITY sim "&#x223C;"> <!ENTITY cong "&#x2245;"> <!ENTITY asymp "&#x2248;"> <!ENTITY ne "&#x2260;"> <!ENTITY equiv "&#x2261;"> <!ENTITY le "&#x2264;"> <!ENTITY ge "&#x2265;"> <!ENTITY sub "&#x2282;"> <!ENTITY sup "&#x2283;"> <!ENTITY nsub "&#x2284;"> <!ENTITY sube "&#x2286;"> <!ENTITY supe "&#x2287;"> <!ENTITY oplus "&#x2295;"> <!ENTITY otimes "&#x2297;"> <!ENTITY perp "&#x22A5;"> <!ENTITY sdot "&#x22C5;"> <!ENTITY lceil "&#x2308;"> <!ENTITY rceil "&#x2309;"> <!ENTITY lfloor "&#x230A;"> <!ENTITY rfloor "&#x230B;"> <!ENTITY lang "&#x2329;"> <!ENTITY rang "&#x232A;"> <!ENTITY loz "&#x25CA;"> <!ENTITY spades "&#x2660;"> <!ENTITY clubs "&#x2663;"> <!ENTITY hearts "&#x2665;"> <!ENTITY diams "&#x2666;"> ]>';
 }
}

class_alias('SimplePie\Parser', 'SimplePie_Parser');

Editing: Parser.php

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