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<?php

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/**

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* SimplePie

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* A PHP-Based RSS and Atom Feed Framework.

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* Takes the hard work out of managing a complete RSS/Atom solution.

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* Redistribution and use in source and binary forms, with or without modification, are

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* permitted provided that the following conditions are met:

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* * Redistributions of source code must retain the above copyright notice, this list of

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* conditions and the following disclaimer.

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* * Redistributions in binary form must reproduce the above copyright notice, this list

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* of conditions and the following disclaimer in the documentation and/or other materials

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* provided with the distribution.

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* * Neither the name of the SimplePie Team nor the names of its contributors may be used

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* to endorse or promote products derived from this software without specific prior

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* written permission.

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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS

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* OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY

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* AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS

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* AND CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR

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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR

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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY

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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR

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* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE

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* POSSIBILITY OF SUCH DAMAGE.

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* @package SimplePie

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* @author Ryan Parman

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* @author Sam Sneddon

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* @author Ryan McCue

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* @link http://simplepie.org/ SimplePie

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* @license http://www.opensource.org/licenses/bsd-license.php BSD License

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/**

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* Miscellanous utilities

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* @package SimplePie

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class SimplePie_Misc

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{

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public static function time_hms($seconds)

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{

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$time = '';

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$hours = floor($seconds / 3600);

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$remainder = $seconds % 3600;

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if ($hours > 0)

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{

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$time .= $hours.':';

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}

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$minutes = floor($remainder / 60);

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$seconds = $remainder % 60;

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if ($minutes < 10 && $hours > 0)

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{

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$minutes = '0' . $minutes;

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}

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if ($seconds < 10)

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{

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$seconds = '0' . $seconds;

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}

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$time .= $minutes.':';

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$time .= $seconds;

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return $time;

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}

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public static function absolutize_url($relative, $base)

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{

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$iri = SimplePie_IRI::absolutize(new SimplePie_IRI($base), $relative);

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if ($iri === false)

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{

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return false;

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}

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return $iri->get_uri();

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}

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/**

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* Get a HTML/XML element from a HTML string

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* @deprecated Use DOMDocument instead (parsing HTML with regex is bad!)

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* @param string $realname Element name (including namespace prefix if applicable)

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* @param string $string HTML document

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* @return array

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public static function get_element($realname, $string)

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{

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$return = array();

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$name = preg_quote($realname, '/');

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if (preg_match_all("/<($name)" . SIMPLEPIE_PCRE_HTML_ATTRIBUTE . "(>(.*)<\/$name>|(\/)?>)/siU", $string, $matches, PREG_SET_ORDER | PREG_OFFSET_CAPTURE))

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{

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for ($i = 0, $total_matches = count($matches); $i < $total_matches; $i++)

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{

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$return[$i]['tag'] = $realname;

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$return[$i]['full'] = $matches[$i][0][0];

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$return[$i]['offset'] = $matches[$i][0][1];

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if (strlen($matches[$i][3][0]) <= 2)

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{

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$return[$i]['self_closing'] = true;

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}

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else

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{

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$return[$i]['self_closing'] = false;

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$return[$i]['content'] = $matches[$i][4][0];

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}

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$return[$i]['attribs'] = array();

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if (isset($matches[$i][2][0]) && preg_match_all('/[\x09\x0A\x0B\x0C\x0D\x20]+([^\x09\x0A\x0B\x0C\x0D\x20\x2F\x3E][^\x09\x0A\x0B\x0C\x0D\x20\x2F\x3D\x3E]*)(?:[\x09\x0A\x0B\x0C\x0D\x20]*=[\x09\x0A\x0B\x0C\x0D\x20]*(?:"([^"]*)"|\'([^\']*)\'|([^\x09\x0A\x0B\x0C\x0D\x20\x22\x27\x3E][^\x09\x0A\x0B\x0C\x0D\x20\x3E]*)?))?/', ' ' . $matches[$i][2][0] . ' ', $attribs, PREG_SET_ORDER))

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{

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for ($j = 0, $total_attribs = count($attribs); $j < $total_attribs; $j++)

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{

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if (count($attribs[$j]) === 2)

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{

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$attribs[$j][2] = $attribs[$j][1];

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}

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$return[$i]['attribs'][strtolower($attribs[$j][1])]['data'] = SimplePie_Misc::entities_decode(end($attribs[$j]));

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}

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}

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}

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}

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return $return;

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}

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public static function element_implode($element)

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{

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$full = "<$element[tag]";

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foreach ($element['attribs'] as $key => $value)

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{

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$key = strtolower($key);

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$full .= " $key=\"" . htmlspecialchars($value['data'], ENT_COMPAT, 'UTF-8') . '"';

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}

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if ($element['self_closing'])

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{

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$full .= ' />';

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}

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else

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{

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$full .= ">$element[content]</$element[tag]>";

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}

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return $full;

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}

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public static function error($message, $level, $file, $line)

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{

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if ((ini_get('error_reporting') & $level) > 0)

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{

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switch ($level)

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{

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case E_USER_ERROR:

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$note = 'PHP Error';

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break;

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case E_USER_WARNING:

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$note = 'PHP Warning';

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break;

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case E_USER_NOTICE:

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$note = 'PHP Notice';

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break;

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default:

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$note = 'Unknown Error';

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break;

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}

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$log_error = true;

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if (!function_exists('error_log'))

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{

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$log_error = false;

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}

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$log_file = @ini_get('error_log');

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if (!empty($log_file) && ('syslog' !== $log_file) && !@is_writable($log_file))

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{

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$log_error = false;

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}

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if ($log_error)

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{

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@error_log("$note: $message in $file on line $line", 0);

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}

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}

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return $message;

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}

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public static function fix_protocol($url, $http = 1)

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{

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$url = SimplePie_Misc::normalize_url($url);

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$parsed = SimplePie_Misc::parse_url($url);

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if ($parsed['scheme'] !== '' && $parsed['scheme'] !== 'http' && $parsed['scheme'] !== 'https')

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{

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return SimplePie_Misc::fix_protocol(SimplePie_Misc::compress_parse_url('http', $parsed['authority'], $parsed['path'], $parsed['query'], $parsed['fragment']), $http);

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}

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if ($parsed['scheme'] === '' && $parsed['authority'] === '' && !file_exists($url))

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{

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return SimplePie_Misc::fix_protocol(SimplePie_Misc::compress_parse_url('http', $parsed['path'], '', $parsed['query'], $parsed['fragment']), $http);

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}

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if ($http === 2 && $parsed['scheme'] !== '')

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{

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return "feed:$url";

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}

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elseif ($http === 3 && strtolower($parsed['scheme']) === 'http')

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{

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return substr_replace($url, 'podcast', 0, 4);

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}

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elseif ($http === 4 && strtolower($parsed['scheme']) === 'http')

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{

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return substr_replace($url, 'itpc', 0, 4);

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}

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return $url;

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}

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public static function array_merge_recursive($array1, $array2)

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{

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foreach ($array2 as $key => $value)

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{

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if (is_array($value))

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{

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$array1[$key] = SimplePie_Misc::array_merge_recursive($array1[$key], $value);

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}

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else

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{

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$array1[$key] = $value;

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}

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}

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return $array1;

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}

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public static function parse_url($url)

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{

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$iri = new SimplePie_IRI($url);

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return array(

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'scheme' => (string) $iri->scheme,

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'authority' => (string) $iri->authority,

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'path' => (string) $iri->path,

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'query' => (string) $iri->query,

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'fragment' => (string) $iri->fragment

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);

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}

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public static function compress_parse_url($scheme = '', $authority = '', $path = '', $query = '', $fragment = '')

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{

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$iri = new SimplePie_IRI('');

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$iri->scheme = $scheme;

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$iri->authority = $authority;

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$iri->path = $path;

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$iri->query = $query;

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$iri->fragment = $fragment;

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return $iri->get_uri();

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}

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public static function normalize_url($url)

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{

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$iri = new SimplePie_IRI($url);

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return $iri->get_uri();

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}

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public static function percent_encoding_normalization($match)

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{

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$integer = hexdec($match[1]);

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if ($integer >= 0x41 && $integer <= 0x5A || $integer >= 0x61 && $integer <= 0x7A || $integer >= 0x30 && $integer <= 0x39 || $integer === 0x2D || $integer === 0x2E || $integer === 0x5F || $integer === 0x7E)

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{

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return chr($integer);

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}

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return strtoupper($match[0]);

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}

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/**

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* Converts a Windows-1252 encoded string to a UTF-8 encoded string

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* @static

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* @param string $string Windows-1252 encoded string

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* @return string UTF-8 encoded string

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public static function windows_1252_to_utf8($string)

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{

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static $convert_table = array("\x80" => "\xE2\x82\xAC", "\x81" => "\xEF\xBF\xBD", "\x82" => "\xE2\x80\x9A", "\x83" => "\xC6\x92", "\x84" => "\xE2\x80\x9E", "\x85" => "\xE2\x80\xA6", "\x86" => "\xE2\x80\xA0", "\x87" => "\xE2\x80\xA1", "\x88" => "\xCB\x86", "\x89" => "\xE2\x80\xB0", "\x8A" => "\xC5\xA0", "\x8B" => "\xE2\x80\xB9", "\x8C" => "\xC5\x92", "\x8D" => "\xEF\xBF\xBD", "\x8E" => "\xC5\xBD", "\x8F" => "\xEF\xBF\xBD", "\x90" => "\xEF\xBF\xBD", "\x91" => "\xE2\x80\x98", "\x92" => "\xE2\x80\x99", "\x93" => "\xE2\x80\x9C", "\x94" => "\xE2\x80\x9D", "\x95" => "\xE2\x80\xA2", "\x96" => "\xE2\x80\x93", "\x97" => "\xE2\x80\x94", "\x98" => "\xCB\x9C", "\x99" => "\xE2\x84\xA2", "\x9A" => "\xC5\xA1", "\x9B" => "\xE2\x80\xBA", "\x9C" => "\xC5\x93", "\x9D" => "\xEF\xBF\xBD", "\x9E" => "\xC5\xBE", "\x9F" => "\xC5\xB8", "\xA0" => "\xC2\xA0", "\xA1" => "\xC2\xA1", "\xA2" => "\xC2\xA2", "\xA3" => "\xC2\xA3", "\xA4" => "\xC2\xA4", "\xA5" => "\xC2\xA5", "\xA6" => "\xC2\xA6", "\xA7" => "\xC2\xA7", "\xA8" => "\xC2\xA8", "\xA9" => "\xC2\xA9", "\xAA" => "\xC2\xAA", "\xAB" => "\xC2\xAB", "\xAC" => "\xC2\xAC", "\xAD" => "\xC2\xAD", "\xAE" => "\xC2\xAE", "\xAF" => "\xC2\xAF", "\xB0" => "\xC2\xB0", "\xB1" => "\xC2\xB1", "\xB2" => "\xC2\xB2", "\xB3" => "\xC2\xB3", "\xB4" => "\xC2\xB4", "\xB5" => "\xC2\xB5", "\xB6" => "\xC2\xB6", "\xB7" => "\xC2\xB7", "\xB8" => "\xC2\xB8", "\xB9" => "\xC2\xB9", "\xBA" => "\xC2\xBA", "\xBB" => "\xC2\xBB", "\xBC" => "\xC2\xBC", "\xBD" => "\xC2\xBD", "\xBE" => "\xC2\xBE", "\xBF" => "\xC2\xBF", "\xC0" => "\xC3\x80", "\xC1" => "\xC3\x81", "\xC2" => "\xC3\x82", "\xC3" => "\xC3\x83", "\xC4" => "\xC3\x84", "\xC5" => "\xC3\x85", "\xC6" => "\xC3\x86", "\xC7" => "\xC3\x87", "\xC8" => "\xC3\x88", "\xC9" => "\xC3\x89", "\xCA" => "\xC3\x8A", "\xCB" => "\xC3\x8B", "\xCC" => "\xC3\x8C", "\xCD" => "\xC3\x8D", "\xCE" => "\xC3\x8E", "\xCF" => "\xC3\x8F", "\xD0" => "\xC3\x90", "\xD1" => "\xC3\x91", "\xD2" => "\xC3\x92", "\xD3" => "\xC3\x93", "\xD4" => "\xC3\x94", "\xD5" => "\xC3\x95", "\xD6" => "\xC3\x96", "\xD7" => "\xC3\x97", "\xD8" => "\xC3\x98", "\xD9" => "\xC3\x99", "\xDA" => "\xC3\x9A", "\xDB" => "\xC3\x9B", "\xDC" => "\xC3\x9C", "\xDD" => "\xC3\x9D", "\xDE" => "\xC3\x9E", "\xDF" => "\xC3\x9F", "\xE0" => "\xC3\xA0", "\xE1" => "\xC3\xA1", "\xE2" => "\xC3\xA2", "\xE3" => "\xC3\xA3", "\xE4" => "\xC3\xA4", "\xE5" => "\xC3\xA5", "\xE6" => "\xC3\xA6", "\xE7" => "\xC3\xA7", "\xE8" => "\xC3\xA8", "\xE9" => "\xC3\xA9", "\xEA" => "\xC3\xAA", "\xEB" => "\xC3\xAB", "\xEC" => "\xC3\xAC", "\xED" => "\xC3\xAD", "\xEE" => "\xC3\xAE", "\xEF" => "\xC3\xAF", "\xF0" => "\xC3\xB0", "\xF1" => "\xC3\xB1", "\xF2" => "\xC3\xB2", "\xF3" => "\xC3\xB3", "\xF4" => "\xC3\xB4", "\xF5" => "\xC3\xB5", "\xF6" => "\xC3\xB6", "\xF7" => "\xC3\xB7", "\xF8" => "\xC3\xB8", "\xF9" => "\xC3\xB9", "\xFA" => "\xC3\xBA", "\xFB" => "\xC3\xBB", "\xFC" => "\xC3\xBC", "\xFD" => "\xC3\xBD", "\xFE" => "\xC3\xBE", "\xFF" => "\xC3\xBF");

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return strtr($string, $convert_table);

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}

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/**

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* Change a string from one encoding to another

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* @param string $data Raw data in $input encoding

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* @param string $input Encoding of $data

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* @param string $output Encoding you want

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* @return string|boolean False if we can't convert it

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public static function change_encoding($data, $input, $output)

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{

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$input = SimplePie_Misc::encoding($input);

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$output = SimplePie_Misc::encoding($output);

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// We fail to fail on non US-ASCII bytes

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if ($input === 'US-ASCII')

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{

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static $non_ascii_octects = '';

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if (!$non_ascii_octects)

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{

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for ($i = 0x80; $i <= 0xFF; $i++)

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{

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$non_ascii_octects .= chr($i);

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}

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}

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$data = substr($data, 0, strcspn($data, $non_ascii_octects));

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}

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// This is first, as behaviour of this is completely predictable

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if ($input === 'windows-1252' && $output === 'UTF-8')

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{

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return SimplePie_Misc::windows_1252_to_utf8($data);

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}

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// This is second, as behaviour of this varies only with PHP version (the middle part of this expression checks the encoding is supported).

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elseif (function_exists('mb_convert_encoding') && ($return = SimplePie_Misc::change_encoding_mbstring($data, $input, $output)))

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{

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return $return;

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}

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// This is third, as behaviour of this varies with OS userland and PHP version

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elseif (function_exists('iconv') && ($return = SimplePie_Misc::change_encoding_iconv($data, $input, $output)))

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{

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return $return;

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}

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// This is last, as behaviour of this varies with OS userland and PHP version

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elseif (class_exists('\UConverter') && ($return = SimplePie_Misc::change_encoding_uconverter($data, $input, $output)))

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{

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return $return;

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}

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// If we can't do anything, just fail

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return false;

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}

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protected static function change_encoding_mbstring($data, $input, $output)

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{

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if ($input === 'windows-949')

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{

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$input = 'EUC-KR';

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}

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if ($output === 'windows-949')

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{

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$output = 'EUC-KR';

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}

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if ($input === 'Windows-31J')

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{

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$input = 'SJIS';

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}

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if ($output === 'Windows-31J')

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{

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$output = 'SJIS';

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}

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[364] Fix | Delete

// Check that the encoding is supported

[365] Fix | Delete

if (!in_array($input, mb_list_encodings()))

[366] Fix | Delete

{

[367] Fix | Delete

return false;

[368] Fix | Delete

}

[369] Fix | Delete

[370] Fix | Delete

if (@mb_convert_encoding("\x80", 'UTF-16BE', $input) === "\x00\x80")

[371] Fix | Delete

{

[372] Fix | Delete

return false;

[373] Fix | Delete

}

[374] Fix | Delete

[375] Fix | Delete

// Let's do some conversion

[376] Fix | Delete

if ($return = @mb_convert_encoding($data, $output, $input))

[377] Fix | Delete

{

[378] Fix | Delete

return $return;

[379] Fix | Delete

}

[380] Fix | Delete

[381] Fix | Delete

return false;

[382] Fix | Delete

}

[383] Fix | Delete

[384] Fix | Delete

protected static function change_encoding_iconv($data, $input, $output)

[385] Fix | Delete

{

[386] Fix | Delete

return @iconv($input, $output, $data);

[387] Fix | Delete

}

[388] Fix | Delete

[389] Fix | Delete

/**

[390] Fix | Delete

* @param string $data

[391] Fix | Delete

* @param string $input

[392] Fix | Delete

* @param string $output

[393] Fix | Delete

* @return string|false

[394] Fix | Delete

[395] Fix | Delete

protected static function change_encoding_uconverter($data, $input, $output)

[396] Fix | Delete

{

[397] Fix | Delete

return @\UConverter::transcode($data, $output, $input);

[398] Fix | Delete

}

[399] Fix | Delete

[400] Fix | Delete

/**

[401] Fix | Delete

* Normalize an encoding name

[402] Fix | Delete

[403] Fix | Delete

* This is automatically generated by create.php

[404] Fix | Delete

[405] Fix | Delete

* To generate it, run `php create.php` on the command line, and copy the

[406] Fix | Delete

* output to replace this function.

[407] Fix | Delete

[408] Fix | Delete

* @param string $charset Character set to standardise

[409] Fix | Delete

* @return string Standardised name

[410] Fix | Delete

[411] Fix | Delete

public static function encoding($charset)

[412] Fix | Delete

{

[413] Fix | Delete

// Normalization from UTS #22

[414] Fix | Delete

switch (strtolower(preg_replace('/(?:[^a-zA-Z0-9]+|([^0-9])0+)/', '\1', $charset)))

[415] Fix | Delete

{

[416] Fix | Delete

case 'adobestandardencoding':

[417] Fix | Delete

case 'csadobestandardencoding':

[418] Fix | Delete

return 'Adobe-Standard-Encoding';

[419] Fix | Delete

[420] Fix | Delete

case 'adobesymbolencoding':

[421] Fix | Delete

case 'cshppsmath':

[422] Fix | Delete

return 'Adobe-Symbol-Encoding';

[423] Fix | Delete

[424] Fix | Delete

case 'ami1251':

[425] Fix | Delete

case 'amiga1251':

[426] Fix | Delete

return 'Amiga-1251';

[427] Fix | Delete

[428] Fix | Delete

case 'ansix31101983':

[429] Fix | Delete

case 'csat5001983':

[430] Fix | Delete

case 'csiso99naplps':

[431] Fix | Delete

case 'isoir99':

[432] Fix | Delete

case 'naplps':

[433] Fix | Delete

return 'ANSI_X3.110-1983';

[434] Fix | Delete

[435] Fix | Delete

case 'arabic7':

[436] Fix | Delete

case 'asmo449':

[437] Fix | Delete

case 'csiso89asmo449':

[438] Fix | Delete

case 'iso9036':

[439] Fix | Delete

case 'isoir89':

[440] Fix | Delete

return 'ASMO_449';

[441] Fix | Delete

[442] Fix | Delete

case 'big5':

[443] Fix | Delete

case 'csbig5':

[444] Fix | Delete

return 'Big5';

[445] Fix | Delete

[446] Fix | Delete

case 'big5hkscs':

[447] Fix | Delete

return 'Big5-HKSCS';

[448] Fix | Delete

[449] Fix | Delete

case 'bocu1':

[450] Fix | Delete

case 'csbocu1':

[451] Fix | Delete

return 'BOCU-1';

[452] Fix | Delete

[453] Fix | Delete

case 'brf':

[454] Fix | Delete

case 'csbrf':

[455] Fix | Delete

return 'BRF';

[456] Fix | Delete

[457] Fix | Delete

case 'bs4730':

[458] Fix | Delete

case 'csiso4unitedkingdom':

[459] Fix | Delete

case 'gb':

[460] Fix | Delete

case 'iso646gb':

[461] Fix | Delete

case 'isoir4':

[462] Fix | Delete

case 'uk':

[463] Fix | Delete

return 'BS_4730';

[464] Fix | Delete

[465] Fix | Delete

case 'bsviewdata':

[466] Fix | Delete

case 'csiso47bsviewdata':

[467] Fix | Delete

case 'isoir47':

[468] Fix | Delete

return 'BS_viewdata';

[469] Fix | Delete

[470] Fix | Delete

case 'cesu8':

[471] Fix | Delete

case 'cscesu8':

[472] Fix | Delete

return 'CESU-8';

[473] Fix | Delete

[474] Fix | Delete

case 'ca':

[475] Fix | Delete

case 'csa71':

[476] Fix | Delete

case 'csaz243419851':

[477] Fix | Delete

case 'csiso121canadian1':

[478] Fix | Delete

case 'iso646ca':

[479] Fix | Delete

case 'isoir121':

[480] Fix | Delete

return 'CSA_Z243.4-1985-1';

[481] Fix | Delete

[482] Fix | Delete

case 'csa72':

[483] Fix | Delete

case 'csaz243419852':

[484] Fix | Delete

case 'csiso122canadian2':

[485] Fix | Delete

case 'iso646ca2':

[486] Fix | Delete

case 'isoir122':

[487] Fix | Delete

return 'CSA_Z243.4-1985-2';

[488] Fix | Delete

[489] Fix | Delete

case 'csaz24341985gr':

[490] Fix | Delete

case 'csiso123csaz24341985gr':

[491] Fix | Delete

case 'isoir123':

[492] Fix | Delete

return 'CSA_Z243.4-1985-gr';

[493] Fix | Delete

[494] Fix | Delete

case 'csiso139csn369103':

[495] Fix | Delete

case 'csn369103':

[496] Fix | Delete

case 'isoir139':

[497] Fix | Delete

return 'CSN_369103';

[498] Fix | Delete

[499] Fix | Delete

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