1<?php
2
3declare(strict_types=1);
4/**
5 * SimplePie
6 *
7 * A PHP-Based RSS and Atom Feed Framework.
8 * Takes the hard work out of managing a complete RSS/Atom solution.
9 *
10 * Copyright (c) 2004-2022, Ryan Parman, Sam Sneddon, Ryan McCue, and contributors
11 * All rights reserved.
12 *
13 * Redistribution and use in source and binary forms, with or without modification, are
14 * permitted provided that the following conditions are met:
15 *
16 * 	* Redistributions of source code must retain the above copyright notice, this list of
17 * 	  conditions and the following disclaimer.
18 *
19 * 	* Redistributions in binary form must reproduce the above copyright notice, this list
20 * 	  of conditions and the following disclaimer in the documentation and/or other materials
21 * 	  provided with the distribution.
22 *
23 * 	* Neither the name of the SimplePie Team nor the names of its contributors may be used
24 * 	  to endorse or promote products derived from this software without specific prior
25 * 	  written permission.
26 *
27 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS
28 * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
29 * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS
30 * AND CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
31 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
32 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
33 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
34 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
35 * POSSIBILITY OF SUCH DAMAGE.
36 *
37 * @package SimplePie
38 * @copyright 2004-2016 Ryan Parman, Sam Sneddon, Ryan McCue
39 * @author Ryan Parman
40 * @author Sam Sneddon
41 * @author Ryan McCue
42 * @link http://simplepie.org/ SimplePie
43 * @license http://www.opensource.org/licenses/bsd-license.php BSD License
44 */
45
46namespace SimplePie;
47
48use SimplePie\XML\Declaration\Parser;
49
50/**
51 * Miscellaneous utilities
52 *
53 * @package SimplePie
54 */
55class Misc
56{
57    private static $SIMPLEPIE_BUILD = null;
58
59    public static function time_hms($seconds)
60    {
61        $time = '';
62
63        $hours = floor($seconds / 3600);
64        $remainder = $seconds % 3600;
65        if ($hours > 0) {
66            $time .= $hours.':';
67        }
68
69        $minutes = floor($remainder / 60);
70        $seconds = $remainder % 60;
71        if ($minutes < 10 && $hours > 0) {
72            $minutes = '0' . $minutes;
73        }
74        if ($seconds < 10) {
75            $seconds = '0' . $seconds;
76        }
77
78        $time .= $minutes.':';
79        $time .= $seconds;
80
81        return $time;
82    }
83
84    public static function absolutize_url($relative, $base)
85    {
86        $iri = \SimplePie\IRI::absolutize(new \SimplePie\IRI($base), $relative);
87        if ($iri === false) {
88            return false;
89        }
90        return $iri->get_uri();
91    }
92
93    /**
94     * Get a HTML/XML element from a HTML string
95     *
96     * @deprecated since SimplePie 1.3, use DOMDocument instead (parsing HTML with regex is bad!)
97     * @param string $realname Element name (including namespace prefix if applicable)
98     * @param string $string HTML document
99     * @return array
100     */
101    public static function get_element($realname, $string)
102    {
103        // trigger_error(sprintf('Using method "' . __METHOD__ . '" is deprecated since SimplePie 1.3, use "DOMDocument" instead.'), \E_USER_DEPRECATED);
104
105        $return = [];
106        $name = preg_quote($realname, '/');
107        if (preg_match_all("/<($name)" . \SimplePie\SimplePie::PCRE_HTML_ATTRIBUTE . "(>(.*)<\/$name>|(\/)?>)/siU", $string, $matches, PREG_SET_ORDER | PREG_OFFSET_CAPTURE)) {
108            for ($i = 0, $total_matches = count($matches); $i < $total_matches; $i++) {
109                $return[$i]['tag'] = $realname;
110                $return[$i]['full'] = $matches[$i][0][0];
111                $return[$i]['offset'] = $matches[$i][0][1];
112                if (strlen($matches[$i][3][0]) <= 2) {
113                    $return[$i]['self_closing'] = true;
114                } else {
115                    $return[$i]['self_closing'] = false;
116                    $return[$i]['content'] = $matches[$i][4][0];
117                }
118                $return[$i]['attribs'] = [];
119                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] . ' ', $attribs, PREG_SET_ORDER)) {
120                    for ($j = 0, $total_attribs = count($attribs); $j < $total_attribs; $j++) {
121                        if (count($attribs[$j]) === 2) {
122                            $attribs[$j][2] = $attribs[$j][1];
123                        }
124                        $return[$i]['attribs'][strtolower($attribs[$j][1])]['data'] = Misc::entities_decode(end($attribs[$j]));
125                    }
126                }
127            }
128        }
129        return $return;
130    }
131
132    public static function element_implode($element)
133    {
134        $full = "<$element[tag]";
135        foreach ($element['attribs'] as $key => $value) {
136            $key = strtolower($key);
137            $full .= " $key=\"" . htmlspecialchars($value['data'], ENT_COMPAT, 'UTF-8') . '"';
138        }
139        if ($element['self_closing']) {
140            $full .= ' />';
141        } else {
142            $full .= ">$element[content]</$element[tag]>";
143        }
144        return $full;
145    }
146
147    public static function error($message, $level, $file, $line)
148    {
149        if ((error_reporting() & $level) > 0) {
150            switch ($level) {
151                case E_USER_ERROR:
152                    $note = 'PHP Error';
153                    break;
154                case E_USER_WARNING:
155                    $note = 'PHP Warning';
156                    break;
157                case E_USER_NOTICE:
158                    $note = 'PHP Notice';
159                    break;
160                default:
161                    $note = 'Unknown Error';
162                    break;
163            }
164
165            $log_error = true;
166            if (!function_exists('error_log')) {
167                $log_error = false;
168            }
169
170            $log_file = @ini_get('error_log');
171            if (!empty($log_file) && ('syslog' !== $log_file) && !@is_writable($log_file)) {
172                $log_error = false;
173            }
174
175            if ($log_error) {
176                @error_log("$note: $message in $file on line $line", 0);
177            }
178        }
179
180        return $message;
181    }
182
183    public static function fix_protocol($url, $http = 1)
184    {
185        $url = Misc::normalize_url($url);
186        $parsed = Misc::parse_url($url);
187        if ($parsed['scheme'] !== '' && $parsed['scheme'] !== 'http' && $parsed['scheme'] !== 'https') {
188            return Misc::fix_protocol(Misc::compress_parse_url('http', $parsed['authority'], $parsed['path'], $parsed['query'], $parsed['fragment']), $http);
189        }
190
191        if ($parsed['scheme'] === '' && $parsed['authority'] === '' && !file_exists($url)) {
192            return Misc::fix_protocol(Misc::compress_parse_url('http', $parsed['path'], '', $parsed['query'], $parsed['fragment']), $http);
193        }
194
195        if ($http === 2 && $parsed['scheme'] !== '') {
196            return "feed:$url";
197        } elseif ($http === 3 && strtolower($parsed['scheme']) === 'http') {
198            return substr_replace($url, 'podcast', 0, 4);
199        } elseif ($http === 4 && strtolower($parsed['scheme']) === 'http') {
200            return substr_replace($url, 'itpc', 0, 4);
201        }
202
203        return $url;
204    }
205
206    /**
207     * @deprecated since SimplePie 1.8.0, use PHP native array_replace_recursive() instead.
208     */
209    public static function array_merge_recursive($array1, $array2)
210    {
211        foreach ($array2 as $key => $value) {
212            if (is_array($value)) {
213                $array1[$key] = Misc::array_merge_recursive($array1[$key], $value);
214            } else {
215                $array1[$key] = $value;
216            }
217        }
218
219        return $array1;
220    }
221
222    public static function parse_url($url)
223    {
224        $iri = new \SimplePie\IRI($url);
225        return [
226            'scheme' => (string) $iri->scheme,
227            'authority' => (string) $iri->authority,
228            'path' => (string) $iri->path,
229            'query' => (string) $iri->query,
230            'fragment' => (string) $iri->fragment
231        ];
232    }
233
234    public static function compress_parse_url($scheme = '', $authority = '', $path = '', $query = '', $fragment = '')
235    {
236        $iri = new \SimplePie\IRI('');
237        $iri->scheme = $scheme;
238        $iri->authority = $authority;
239        $iri->path = $path;
240        $iri->query = $query;
241        $iri->fragment = $fragment;
242        return $iri->get_uri();
243    }
244
245    public static function normalize_url($url)
246    {
247        $iri = new \SimplePie\IRI($url);
248        return $iri->get_uri();
249    }
250
251    public static function percent_encoding_normalization($match)
252    {
253        $integer = hexdec($match[1]);
254        if ($integer >= 0x41 && $integer <= 0x5A || $integer >= 0x61 && $integer <= 0x7A || $integer >= 0x30 && $integer <= 0x39 || $integer === 0x2D || $integer === 0x2E || $integer === 0x5F || $integer === 0x7E) {
255            return chr($integer);
256        }
257
258        return strtoupper($match[0]);
259    }
260
261    /**
262     * Converts a Windows-1252 encoded string to a UTF-8 encoded string
263     *
264     * @static
265     * @param string $string Windows-1252 encoded string
266     * @return string UTF-8 encoded string
267     */
268    public static function windows_1252_to_utf8($string)
269    {
270        static $convert_table = ["\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"];
271
272        return strtr($string, $convert_table);
273    }
274
275    /**
276     * Change a string from one encoding to another
277     *
278     * @param string $data Raw data in $input encoding
279     * @param string $input Encoding of $data
280     * @param string $output Encoding you want
281     * @return string|boolean False if we can't convert it
282     */
283    public static function change_encoding($data, $input, $output)
284    {
285        $input = Misc::encoding($input);
286        $output = Misc::encoding($output);
287
288        // We fail to fail on non US-ASCII bytes
289        if ($input === 'US-ASCII') {
290            static $non_ascii_octects = '';
291            if (!$non_ascii_octects) {
292                for ($i = 0x80; $i <= 0xFF; $i++) {
293                    $non_ascii_octects .= chr($i);
294                }
295            }
296            $data = substr($data, 0, strcspn($data, $non_ascii_octects));
297        }
298
299        // This is first, as behaviour of this is completely predictable
300        if ($input === 'windows-1252' && $output === 'UTF-8') {
301            return Misc::windows_1252_to_utf8($data);
302        }
303        // This is second, as behaviour of this varies only with PHP version (the middle part of this expression checks the encoding is supported).
304        elseif (function_exists('mb_convert_encoding') && ($return = Misc::change_encoding_mbstring($data, $input, $output))) {
305            return $return;
306        }
307        // This is third, as behaviour of this varies with OS userland and PHP version
308        elseif (function_exists('iconv') && ($return = Misc::change_encoding_iconv($data, $input, $output))) {
309            return $return;
310        }
311        // This is last, as behaviour of this varies with OS userland and PHP version
312        elseif (class_exists('\UConverter') && ($return = Misc::change_encoding_uconverter($data, $input, $output))) {
313            return $return;
314        }
315
316        // If we can't do anything, just fail
317        return false;
318    }
319
320    protected static function change_encoding_mbstring($data, $input, $output)
321    {
322        if ($input === 'windows-949') {
323            $input = 'EUC-KR';
324        }
325        if ($output === 'windows-949') {
326            $output = 'EUC-KR';
327        }
328        if ($input === 'Windows-31J') {
329            $input = 'SJIS';
330        }
331        if ($output === 'Windows-31J') {
332            $output = 'SJIS';
333        }
334
335        // Check that the encoding is supported
336        if (!in_array($input, mb_list_encodings())) {
337            return false;
338        }
339
340        if (@mb_convert_encoding("\x80", 'UTF-16BE', $input) === "\x00\x80") {
341            return false;
342        }
343
344        // Let's do some conversion
345        if ($return = @mb_convert_encoding($data, $output, $input)) {
346            return $return;
347        }
348
349        return false;
350    }
351
352    protected static function change_encoding_iconv($data, $input, $output)
353    {
354        return @iconv($input, $output, $data);
355    }
356
357    /**
358     * @param string $data
359     * @param string $input
360     * @param string $output
361     * @return string|false
362     */
363    protected static function change_encoding_uconverter($data, $input, $output)
364    {
365        return @\UConverter::transcode($data, $output, $input);
366    }
367
368    /**
369     * Normalize an encoding name
370     *
371     * This is automatically generated by create.php
372     *
373     * To generate it, run `php create.php` on the command line, and copy the
374     * output to replace this function.
375     *
376     * @param string $charset Character set to standardise
377     * @return string Standardised name
378     */
379    public static function encoding($charset)
380    {
381        // Normalization from UTS #22
382        switch (strtolower(preg_replace('/(?:[^a-zA-Z0-9]+|([^0-9])0+)/', '\1', $charset))) {
383            case 'adobestandardencoding':
384            case 'csadobestandardencoding':
385                return 'Adobe-Standard-Encoding';
386
387            case 'adobesymbolencoding':
388            case 'cshppsmath':
389                return 'Adobe-Symbol-Encoding';
390
391            case 'ami1251':
392            case 'amiga1251':
393                return 'Amiga-1251';
394
395            case 'ansix31101983':
396            case 'csat5001983':
397            case 'csiso99naplps':
398            case 'isoir99':
399            case 'naplps':
400                return 'ANSI_X3.110-1983';
401
402            case 'arabic7':
403            case 'asmo449':
404            case 'csiso89asmo449':
405            case 'iso9036':
406            case 'isoir89':
407                return 'ASMO_449';
408
409            case 'big5':
410            case 'csbig5':
411                return 'Big5';
412
413            case 'big5hkscs':
414                return 'Big5-HKSCS';
415
416            case 'bocu1':
417            case 'csbocu1':
418                return 'BOCU-1';
419
420            case 'brf':
421            case 'csbrf':
422                return 'BRF';
423
424            case 'bs4730':
425            case 'csiso4unitedkingdom':
426            case 'gb':
427            case 'iso646gb':
428            case 'isoir4':
429            case 'uk':
430                return 'BS_4730';
431
432            case 'bsviewdata':
433            case 'csiso47bsviewdata':
434            case 'isoir47':
435                return 'BS_viewdata';
436
437            case 'cesu8':
438            case 'cscesu8':
439                return 'CESU-8';
440
441            case 'ca':
442            case 'csa71':
443            case 'csaz243419851':
444            case 'csiso121canadian1':
445            case 'iso646ca':
446            case 'isoir121':
447                return 'CSA_Z243.4-1985-1';
448
449            case 'csa72':
450            case 'csaz243419852':
451            case 'csiso122canadian2':
452            case 'iso646ca2':
453            case 'isoir122':
454                return 'CSA_Z243.4-1985-2';
455
456            case 'csaz24341985gr':
457            case 'csiso123csaz24341985gr':
458            case 'isoir123':
459                return 'CSA_Z243.4-1985-gr';
460
461            case 'csiso139csn369103':
462            case 'csn369103':
463            case 'isoir139':
464                return 'CSN_369103';
465
466            case 'csdecmcs':
467            case 'dec':
468            case 'decmcs':
469                return 'DEC-MCS';
470
471            case 'csiso21german':
472            case 'de':
473            case 'din66003':
474            case 'iso646de':
475            case 'isoir21':
476                return 'DIN_66003';
477
478            case 'csdkus':
479            case 'dkus':
480                return 'dk-us';
481
482            case 'csiso646danish':
483            case 'dk':
484            case 'ds2089':
485            case 'iso646dk':
486                return 'DS_2089';
487
488            case 'csibmebcdicatde':
489            case 'ebcdicatde':
490                return 'EBCDIC-AT-DE';
491
492            case 'csebcdicatdea':
493            case 'ebcdicatdea':
494                return 'EBCDIC-AT-DE-A';
495
496            case 'csebcdiccafr':
497            case 'ebcdiccafr':
498                return 'EBCDIC-CA-FR';
499
500            case 'csebcdicdkno':
501            case 'ebcdicdkno':
502                return 'EBCDIC-DK-NO';
503
504            case 'csebcdicdknoa':
505            case 'ebcdicdknoa':
506                return 'EBCDIC-DK-NO-A';
507
508            case 'csebcdices':
509            case 'ebcdices':
510                return 'EBCDIC-ES';
511
512            case 'csebcdicesa':
513            case 'ebcdicesa':
514                return 'EBCDIC-ES-A';
515
516            case 'csebcdicess':
517            case 'ebcdicess':
518                return 'EBCDIC-ES-S';
519
520            case 'csebcdicfise':
521            case 'ebcdicfise':
522                return 'EBCDIC-FI-SE';
523
524            case 'csebcdicfisea':
525            case 'ebcdicfisea':
526                return 'EBCDIC-FI-SE-A';
527
528            case 'csebcdicfr':
529            case 'ebcdicfr':
530                return 'EBCDIC-FR';
531
532            case 'csebcdicit':
533            case 'ebcdicit':
534                return 'EBCDIC-IT';
535
536            case 'csebcdicpt':
537            case 'ebcdicpt':
538                return 'EBCDIC-PT';
539
540            case 'csebcdicuk':
541            case 'ebcdicuk':
542                return 'EBCDIC-UK';
543
544            case 'csebcdicus':
545            case 'ebcdicus':
546                return 'EBCDIC-US';
547
548            case 'csiso111ecmacyrillic':
549            case 'ecmacyrillic':
550            case 'isoir111':
551            case 'koi8e':
552                return 'ECMA-cyrillic';
553
554            case 'csiso17spanish':
555            case 'es':
556            case 'iso646es':
557            case 'isoir17':
558                return 'ES';
559
560            case 'csiso85spanish2':
561            case 'es2':
562            case 'iso646es2':
563            case 'isoir85':
564                return 'ES2';
565
566            case 'cseucpkdfmtjapanese':
567            case 'eucjp':
568            case 'extendedunixcodepackedformatforjapanese':
569                return 'EUC-JP';
570
571            case 'cseucfixwidjapanese':
572            case 'extendedunixcodefixedwidthforjapanese':
573                return 'Extended_UNIX_Code_Fixed_Width_for_Japanese';
574
575            case 'gb18030':
576                return 'GB18030';
577
578            case 'chinese':
579            case 'cp936':
580            case 'csgb2312':
581            case 'csiso58gb231280':
582            case 'gb2312':
583            case 'gb231280':
584            case 'gbk':
585            case 'isoir58':
586            case 'ms936':
587            case 'windows936':
588                return 'GBK';
589
590            case 'cn':
591            case 'csiso57gb1988':
592            case 'gb198880':
593            case 'iso646cn':
594            case 'isoir57':
595                return 'GB_1988-80';
596
597            case 'csiso153gost1976874':
598            case 'gost1976874':
599            case 'isoir153':
600            case 'stsev35888':
601                return 'GOST_19768-74';
602
603            case 'csiso150':
604            case 'csiso150greekccitt':
605            case 'greekccitt':
606            case 'isoir150':
607                return 'greek-ccitt';
608
609            case 'csiso88greek7':
610            case 'greek7':
611            case 'isoir88':
612                return 'greek7';
613
614            case 'csiso18greek7old':
615            case 'greek7old':
616            case 'isoir18':
617                return 'greek7-old';
618
619            case 'cshpdesktop':
620            case 'hpdesktop':
621                return 'HP-DeskTop';
622
623            case 'cshplegal':
624            case 'hplegal':
625                return 'HP-Legal';
626
627            case 'cshpmath8':
628            case 'hpmath8':
629                return 'HP-Math8';
630
631            case 'cshppifont':
632            case 'hppifont':
633                return 'HP-Pi-font';
634
635            case 'cshproman8':
636            case 'hproman8':
637            case 'r8':
638            case 'roman8':
639                return 'hp-roman8';
640
641            case 'hzgb2312':
642                return 'HZ-GB-2312';
643
644            case 'csibmsymbols':
645            case 'ibmsymbols':
646                return 'IBM-Symbols';
647
648            case 'csibmthai':
649            case 'ibmthai':
650                return 'IBM-Thai';
651
652            case 'cp37':
653            case 'csibm37':
654            case 'ebcdiccpca':
655            case 'ebcdiccpnl':
656            case 'ebcdiccpus':
657            case 'ebcdiccpwt':
658            case 'ibm37':
659                return 'IBM037';
660
661            case 'cp38':
662            case 'csibm38':
663            case 'ebcdicint':
664            case 'ibm38':
665                return 'IBM038';
666
667            case 'cp273':
668            case 'csibm273':
669            case 'ibm273':
670                return 'IBM273';
671
672            case 'cp274':
673            case 'csibm274':
674            case 'ebcdicbe':
675            case 'ibm274':
676                return 'IBM274';
677
678            case 'cp275':
679            case 'csibm275':
680            case 'ebcdicbr':
681            case 'ibm275':
682                return 'IBM275';
683
684            case 'csibm277':
685            case 'ebcdiccpdk':
686            case 'ebcdiccpno':
687            case 'ibm277':
688                return 'IBM277';
689
690            case 'cp278':
691            case 'csibm278':
692            case 'ebcdiccpfi':
693            case 'ebcdiccpse':
694            case 'ibm278':
695                return 'IBM278';
696
697            case 'cp280':
698            case 'csibm280':
699            case 'ebcdiccpit':
700            case 'ibm280':
701                return 'IBM280';
702
703            case 'cp281':
704            case 'csibm281':
705            case 'ebcdicjpe':
706            case 'ibm281':
707                return 'IBM281';
708
709            case 'cp284':
710            case 'csibm284':
711            case 'ebcdiccpes':
712            case 'ibm284':
713                return 'IBM284';
714
715            case 'cp285':
716            case 'csibm285':
717            case 'ebcdiccpgb':
718            case 'ibm285':
719                return 'IBM285';
720
721            case 'cp290':
722            case 'csibm290':
723            case 'ebcdicjpkana':
724            case 'ibm290':
725                return 'IBM290';
726
727            case 'cp297':
728            case 'csibm297':
729            case 'ebcdiccpfr':
730            case 'ibm297':
731                return 'IBM297';
732
733            case 'cp420':
734            case 'csibm420':
735            case 'ebcdiccpar1':
736            case 'ibm420':
737                return 'IBM420';
738
739            case 'cp423':
740            case 'csibm423':
741            case 'ebcdiccpgr':
742            case 'ibm423':
743                return 'IBM423';
744
745            case 'cp424':
746            case 'csibm424':
747            case 'ebcdiccphe':
748            case 'ibm424':
749                return 'IBM424';
750
751            case '437':
752            case 'cp437':
753            case 'cspc8codepage437':
754            case 'ibm437':
755                return 'IBM437';
756
757            case 'cp500':
758            case 'csibm500':
759            case 'ebcdiccpbe':
760            case 'ebcdiccpch':
761            case 'ibm500':
762                return 'IBM500';
763
764            case 'cp775':
765            case 'cspc775baltic':
766            case 'ibm775':
767                return 'IBM775';
768
769            case '850':
770            case 'cp850':
771            case 'cspc850multilingual':
772            case 'ibm850':
773                return 'IBM850';
774
775            case '851':
776            case 'cp851':
777            case 'csibm851':
778            case 'ibm851':
779                return 'IBM851';
780
781            case '852':
782            case 'cp852':
783            case 'cspcp852':
784            case 'ibm852':
785                return 'IBM852';
786
787            case '855':
788            case 'cp855':
789            case 'csibm855':
790            case 'ibm855':
791                return 'IBM855';
792
793            case '857':
794            case 'cp857':
795            case 'csibm857':
796            case 'ibm857':
797                return 'IBM857';
798
799            case 'ccsid858':
800            case 'cp858':
801            case 'ibm858':
802            case 'pcmultilingual850euro':
803                return 'IBM00858';
804
805            case '860':
806            case 'cp860':
807            case 'csibm860':
808            case 'ibm860':
809                return 'IBM860';
810
811            case '861':
812            case 'cp861':
813            case 'cpis':
814            case 'csibm861':
815            case 'ibm861':
816                return 'IBM861';
817
818            case '862':
819            case 'cp862':
820            case 'cspc862latinhebrew':
821            case 'ibm862':
822                return 'IBM862';
823
824            case '863':
825            case 'cp863':
826            case 'csibm863':
827            case 'ibm863':
828                return 'IBM863';
829
830            case 'cp864':
831            case 'csibm864':
832            case 'ibm864':
833                return 'IBM864';
834
835            case '865':
836            case 'cp865':
837            case 'csibm865':
838            case 'ibm865':
839                return 'IBM865';
840
841            case '866':
842            case 'cp866':
843            case 'csibm866':
844            case 'ibm866':
845                return 'IBM866';
846
847            case 'cp868':
848            case 'cpar':
849            case 'csibm868':
850            case 'ibm868':
851                return 'IBM868';
852
853            case '869':
854            case 'cp869':
855            case 'cpgr':
856            case 'csibm869':
857            case 'ibm869':
858                return 'IBM869';
859
860            case 'cp870':
861            case 'csibm870':
862            case 'ebcdiccproece':
863            case 'ebcdiccpyu':
864            case 'ibm870':
865                return 'IBM870';
866
867            case 'cp871':
868            case 'csibm871':
869            case 'ebcdiccpis':
870            case 'ibm871':
871                return 'IBM871';
872
873            case 'cp880':
874            case 'csibm880':
875            case 'ebcdiccyrillic':
876            case 'ibm880':
877                return 'IBM880';
878
879            case 'cp891':
880            case 'csibm891':
881            case 'ibm891':
882                return 'IBM891';
883
884            case 'cp903':
885            case 'csibm903':
886            case 'ibm903':
887                return 'IBM903';
888
889            case '904':
890            case 'cp904':
891            case 'csibbm904':
892            case 'ibm904':
893                return 'IBM904';
894
895            case 'cp905':
896            case 'csibm905':
897            case 'ebcdiccptr':
898            case 'ibm905':
899                return 'IBM905';
900
901            case 'cp918':
902            case 'csibm918':
903            case 'ebcdiccpar2':
904            case 'ibm918':
905                return 'IBM918';
906
907            case 'ccsid924':
908            case 'cp924':
909            case 'ebcdiclatin9euro':
910            case 'ibm924':
911                return 'IBM00924';
912
913            case 'cp1026':
914            case 'csibm1026':
915            case 'ibm1026':
916                return 'IBM1026';
917
918            case 'ibm1047':
919                return 'IBM1047';
920
921            case 'ccsid1140':
922            case 'cp1140':
923            case 'ebcdicus37euro':
924            case 'ibm1140':
925                return 'IBM01140';
926
927            case 'ccsid1141':
928            case 'cp1141':
929            case 'ebcdicde273euro':
930            case 'ibm1141':
931                return 'IBM01141';
932
933            case 'ccsid1142':
934            case 'cp1142':
935            case 'ebcdicdk277euro':
936            case 'ebcdicno277euro':
937            case 'ibm1142':
938                return 'IBM01142';
939
940            case 'ccsid1143':
941            case 'cp1143':
942            case 'ebcdicfi278euro':
943            case 'ebcdicse278euro':
944            case 'ibm1143':
945                return 'IBM01143';
946
947            case 'ccsid1144':
948            case 'cp1144':
949            case 'ebcdicit280euro':
950            case 'ibm1144':
951                return 'IBM01144';
952
953            case 'ccsid1145':
954            case 'cp1145':
955            case 'ebcdices284euro':
956            case 'ibm1145':
957                return 'IBM01145';
958
959            case 'ccsid1146':
960            case 'cp1146':
961            case 'ebcdicgb285euro':
962            case 'ibm1146':
963                return 'IBM01146';
964
965            case 'ccsid1147':
966            case 'cp1147':
967            case 'ebcdicfr297euro':
968            case 'ibm1147':
969                return 'IBM01147';
970
971            case 'ccsid1148':
972            case 'cp1148':
973            case 'ebcdicinternational500euro':
974            case 'ibm1148':
975                return 'IBM01148';
976
977            case 'ccsid1149':
978            case 'cp1149':
979            case 'ebcdicis871euro':
980            case 'ibm1149':
981                return 'IBM01149';
982
983            case 'csiso143iecp271':
984            case 'iecp271':
985            case 'isoir143':
986                return 'IEC_P27-1';
987
988            case 'csiso49inis':
989            case 'inis':
990            case 'isoir49':
991                return 'INIS';
992
993            case 'csiso50inis8':
994            case 'inis8':
995            case 'isoir50':
996                return 'INIS-8';
997
998            case 'csiso51iniscyrillic':
999            case 'iniscyrillic':
1000            case 'isoir51':
1001                return 'INIS-cyrillic';
1002
1003            case 'csinvariant':
1004            case 'invariant':
1005                return 'INVARIANT';
1006
1007            case 'iso2022cn':
1008                return 'ISO-2022-CN';
1009
1010            case 'iso2022cnext':
1011                return 'ISO-2022-CN-EXT';
1012
1013            case 'csiso2022jp':
1014            case 'iso2022jp':
1015                return 'ISO-2022-JP';
1016
1017            case 'csiso2022jp2':
1018            case 'iso2022jp2':
1019                return 'ISO-2022-JP-2';
1020
1021            case 'csiso2022kr':
1022            case 'iso2022kr':
1023                return 'ISO-2022-KR';
1024
1025            case 'cswindows30latin1':
1026            case 'iso88591windows30latin1':
1027                return 'ISO-8859-1-Windows-3.0-Latin-1';
1028
1029            case 'cswindows31latin1':
1030            case 'iso88591windows31latin1':
1031                return 'ISO-8859-1-Windows-3.1-Latin-1';
1032
1033            case 'csisolatin2':
1034            case 'iso88592':
1035            case 'iso885921987':
1036            case 'isoir101':
1037            case 'l2':
1038            case 'latin2':
1039                return 'ISO-8859-2';
1040
1041            case 'cswindows31latin2':
1042            case 'iso88592windowslatin2':
1043                return 'ISO-8859-2-Windows-Latin-2';
1044
1045            case 'csisolatin3':
1046            case 'iso88593':
1047            case 'iso885931988':
1048            case 'isoir109':
1049            case 'l3':
1050            case 'latin3':
1051                return 'ISO-8859-3';
1052
1053            case 'csisolatin4':
1054            case 'iso88594':
1055            case 'iso885941988':
1056            case 'isoir110':
1057            case 'l4':
1058            case 'latin4':
1059                return 'ISO-8859-4';
1060
1061            case 'csisolatincyrillic':
1062            case 'cyrillic':
1063            case 'iso88595':
1064            case 'iso885951988':
1065            case 'isoir144':
1066                return 'ISO-8859-5';
1067
1068            case 'arabic':
1069            case 'asmo708':
1070            case 'csisolatinarabic':
1071            case 'ecma114':
1072            case 'iso88596':
1073            case 'iso885961987':
1074            case 'isoir127':
1075                return 'ISO-8859-6';
1076
1077            case 'csiso88596e':
1078            case 'iso88596e':
1079                return 'ISO-8859-6-E';
1080
1081            case 'csiso88596i':
1082            case 'iso88596i':
1083                return 'ISO-8859-6-I';
1084
1085            case 'csisolatingreek':
1086            case 'ecma118':
1087            case 'elot928':
1088            case 'greek':
1089            case 'greek8':
1090            case 'iso88597':
1091            case 'iso885971987':
1092            case 'isoir126':
1093                return 'ISO-8859-7';
1094
1095            case 'csisolatinhebrew':
1096            case 'hebrew':
1097            case 'iso88598':
1098            case 'iso885981988':
1099            case 'isoir138':
1100                return 'ISO-8859-8';
1101
1102            case 'csiso88598e':
1103            case 'iso88598e':
1104                return 'ISO-8859-8-E';
1105
1106            case 'csiso88598i':
1107            case 'iso88598i':
1108                return 'ISO-8859-8-I';
1109
1110            case 'cswindows31latin5':
1111            case 'iso88599windowslatin5':
1112                return 'ISO-8859-9-Windows-Latin-5';
1113
1114            case 'csisolatin6':
1115            case 'iso885910':
1116            case 'iso8859101992':
1117            case 'isoir157':
1118            case 'l6':
1119            case 'latin6':
1120                return 'ISO-8859-10';
1121
1122            case 'iso885913':
1123                return 'ISO-8859-13';
1124
1125            case 'iso885914':
1126            case 'iso8859141998':
1127            case 'isoceltic':
1128            case 'isoir199':
1129            case 'l8':
1130            case 'latin8':
1131                return 'ISO-8859-14';
1132
1133            case 'iso885915':
1134            case 'latin9':
1135                return 'ISO-8859-15';
1136
1137            case 'iso885916':
1138            case 'iso8859162001':
1139            case 'isoir226':
1140            case 'l10':
1141            case 'latin10':
1142                return 'ISO-8859-16';
1143
1144            case 'iso10646j1':
1145                return 'ISO-10646-J-1';
1146
1147            case 'csunicode':
1148            case 'iso10646ucs2':
1149                return 'ISO-10646-UCS-2';
1150
1151            case 'csucs4':
1152            case 'iso10646ucs4':
1153                return 'ISO-10646-UCS-4';
1154
1155            case 'csunicodeascii':
1156            case 'iso10646ucsbasic':
1157                return 'ISO-10646-UCS-Basic';
1158
1159            case 'csunicodelatin1':
1160            case 'iso10646':
1161            case 'iso10646unicodelatin1':
1162                return 'ISO-10646-Unicode-Latin1';
1163
1164            case 'csiso10646utf1':
1165            case 'iso10646utf1':
1166                return 'ISO-10646-UTF-1';
1167
1168            case 'csiso115481':
1169            case 'iso115481':
1170            case 'isotr115481':
1171                return 'ISO-11548-1';
1172
1173            case 'csiso90':
1174            case 'isoir90':
1175                return 'iso-ir-90';
1176
1177            case 'csunicodeibm1261':
1178            case 'isounicodeibm1261':
1179                return 'ISO-Unicode-IBM-1261';
1180
1181            case 'csunicodeibm1264':
1182            case 'isounicodeibm1264':
1183                return 'ISO-Unicode-IBM-1264';
1184
1185            case 'csunicodeibm1265':
1186            case 'isounicodeibm1265':
1187                return 'ISO-Unicode-IBM-1265';
1188
1189            case 'csunicodeibm1268':
1190            case 'isounicodeibm1268':
1191                return 'ISO-Unicode-IBM-1268';
1192
1193            case 'csunicodeibm1276':
1194            case 'isounicodeibm1276':
1195                return 'ISO-Unicode-IBM-1276';
1196
1197            case 'csiso646basic1983':
1198            case 'iso646basic1983':
1199            case 'ref':
1200                return 'ISO_646.basic:1983';
1201
1202            case 'csiso2intlrefversion':
1203            case 'irv':
1204            case 'iso646irv1983':
1205            case 'isoir2':
1206                return 'ISO_646.irv:1983';
1207
1208            case 'csiso2033':
1209            case 'e13b':
1210            case 'iso20331983':
1211            case 'isoir98':
1212                return 'ISO_2033-1983';
1213
1214            case 'csiso5427cyrillic':
1215            case 'iso5427':
1216            case 'isoir37':
1217                return 'ISO_5427';
1218
1219            case 'iso5427cyrillic1981':
1220            case 'iso54271981':
1221            case 'isoir54':
1222                return 'ISO_5427:1981';
1223
1224            case 'csiso5428greek':
1225            case 'iso54281980':
1226            case 'isoir55':
1227                return 'ISO_5428:1980';
1228
1229            case 'csiso6937add':
1230            case 'iso6937225':
1231            case 'isoir152':
1232                return 'ISO_6937-2-25';
1233
1234            case 'csisotextcomm':
1235            case 'iso69372add':
1236            case 'isoir142':
1237                return 'ISO_6937-2-add';
1238
1239            case 'csiso8859supp':
1240            case 'iso8859supp':
1241            case 'isoir154':
1242            case 'latin125':
1243                return 'ISO_8859-supp';
1244
1245            case 'csiso10367box':
1246            case 'iso10367box':
1247            case 'isoir155':
1248                return 'ISO_10367-box';
1249
1250            case 'csiso15italian':
1251            case 'iso646it':
1252            case 'isoir15':
1253            case 'it':
1254                return 'IT';
1255
1256            case 'csiso13jisc6220jp':
1257            case 'isoir13':
1258            case 'jisc62201969':
1259            case 'jisc62201969jp':
1260            case 'katakana':
1261            case 'x2017':
1262                return 'JIS_C6220-1969-jp';
1263
1264            case 'csiso14jisc6220ro':
1265            case 'iso646jp':
1266            case 'isoir14':
1267            case 'jisc62201969ro':
1268            case 'jp':
1269                return 'JIS_C6220-1969-ro';
1270
1271            case 'csiso42jisc62261978':
1272            case 'isoir42':
1273            case 'jisc62261978':
1274                return 'JIS_C6226-1978';
1275
1276            case 'csiso87jisx208':
1277            case 'isoir87':
1278            case 'jisc62261983':
1279            case 'jisx2081983':
1280            case 'x208':
1281                return 'JIS_C6226-1983';
1282
1283            case 'csiso91jisc62291984a':
1284            case 'isoir91':
1285            case 'jisc62291984a':
1286            case 'jpocra':
1287                return 'JIS_C6229-1984-a';
1288
1289            case 'csiso92jisc62991984b':
1290            case 'iso646jpocrb':
1291            case 'isoir92':
1292            case 'jisc62291984b':
1293            case 'jpocrb':
1294                return 'JIS_C6229-1984-b';
1295
1296            case 'csiso93jis62291984badd':
1297            case 'isoir93':
1298            case 'jisc62291984badd':
1299            case 'jpocrbadd':
1300                return 'JIS_C6229-1984-b-add';
1301
1302            case 'csiso94jis62291984hand':
1303            case 'isoir94':
1304            case 'jisc62291984hand':
1305            case 'jpocrhand':
1306                return 'JIS_C6229-1984-hand';
1307
1308            case 'csiso95jis62291984handadd':
1309            case 'isoir95':
1310            case 'jisc62291984handadd':
1311            case 'jpocrhandadd':
1312                return 'JIS_C6229-1984-hand-add';
1313
1314            case 'csiso96jisc62291984kana':
1315            case 'isoir96':
1316            case 'jisc62291984kana':
1317                return 'JIS_C6229-1984-kana';
1318
1319            case 'csjisencoding':
1320            case 'jisencoding':
1321                return 'JIS_Encoding';
1322
1323            case 'cshalfwidthkatakana':
1324            case 'jisx201':
1325            case 'x201':
1326                return 'JIS_X0201';
1327
1328            case 'csiso159jisx2121990':
1329            case 'isoir159':
1330            case 'jisx2121990':
1331            case 'x212':
1332                return 'JIS_X0212-1990';
1333
1334            case 'csiso141jusib1002':
1335            case 'iso646yu':
1336            case 'isoir141':
1337            case 'js':
1338            case 'jusib1002':
1339            case 'yu':
1340                return 'JUS_I.B1.002';
1341
1342            case 'csiso147macedonian':
1343            case 'isoir147':
1344            case 'jusib1003mac':
1345            case 'macedonian':
1346                return 'JUS_I.B1.003-mac';
1347
1348            case 'csiso146serbian':
1349            case 'isoir146':
1350            case 'jusib1003serb':
1351            case 'serbian':
1352                return 'JUS_I.B1.003-serb';
1353
1354            case 'koi7switched':
1355                return 'KOI7-switched';
1356
1357            case 'cskoi8r':
1358            case 'koi8r':
1359                return 'KOI8-R';
1360
1361            case 'koi8u':
1362                return 'KOI8-U';
1363
1364            case 'csksc5636':
1365            case 'iso646kr':
1366            case 'ksc5636':
1367                return 'KSC5636';
1368
1369            case 'cskz1048':
1370            case 'kz1048':
1371            case 'rk1048':
1372            case 'strk10482002':
1373                return 'KZ-1048';
1374
1375            case 'csiso19latingreek':
1376            case 'isoir19':
1377            case 'latingreek':
1378                return 'latin-greek';
1379
1380            case 'csiso27latingreek1':
1381            case 'isoir27':
1382            case 'latingreek1':
1383                return 'Latin-greek-1';
1384
1385            case 'csiso158lap':
1386            case 'isoir158':
1387            case 'lap':
1388            case 'latinlap':
1389                return 'latin-lap';
1390
1391            case 'csmacintosh':
1392            case 'mac':
1393            case 'macintosh':
1394                return 'macintosh';
1395
1396            case 'csmicrosoftpublishing':
1397            case 'microsoftpublishing':
1398                return 'Microsoft-Publishing';
1399
1400            case 'csmnem':
1401            case 'mnem':
1402                return 'MNEM';
1403
1404            case 'csmnemonic':
1405            case 'mnemonic':
1406                return 'MNEMONIC';
1407
1408            case 'csiso86hungarian':
1409            case 'hu':
1410            case 'iso646hu':
1411            case 'isoir86':
1412            case 'msz77953':
1413                return 'MSZ_7795.3';
1414
1415            case 'csnatsdano':
1416            case 'isoir91':
1417            case 'natsdano':
1418                return 'NATS-DANO';
1419
1420            case 'csnatsdanoadd':
1421            case 'isoir92':
1422            case 'natsdanoadd':
1423                return 'NATS-DANO-ADD';
1424
1425            case 'csnatssefi':
1426            case 'isoir81':
1427            case 'natssefi':
1428                return 'NATS-SEFI';
1429
1430            case 'csnatssefiadd':
1431            case 'isoir82':
1432            case 'natssefiadd':
1433                return 'NATS-SEFI-ADD';
1434
1435            case 'csiso151cuba':
1436            case 'cuba':
1437            case 'iso646cu':
1438            case 'isoir151':
1439            case 'ncnc1081':
1440                return 'NC_NC00-10:81';
1441
1442            case 'csiso69french':
1443            case 'fr':
1444            case 'iso646fr':
1445            case 'isoir69':
1446            case 'nfz62010':
1447                return 'NF_Z_62-010';
1448
1449            case 'csiso25french':
1450            case 'iso646fr1':
1451            case 'isoir25':
1452            case 'nfz620101973':
1453                return 'NF_Z_62-010_(1973)';
1454
1455            case 'csiso60danishnorwegian':
1456            case 'csiso60norwegian1':
1457            case 'iso646no':
1458            case 'isoir60':
1459            case 'no':
1460            case 'ns45511':
1461                return 'NS_4551-1';
1462
1463            case 'csiso61norwegian2':
1464            case 'iso646no2':
1465            case 'isoir61':
1466            case 'no2':
1467            case 'ns45512':
1468                return 'NS_4551-2';
1469
1470            case 'osdebcdicdf3irv':
1471                return 'OSD_EBCDIC_DF03_IRV';
1472
1473            case 'osdebcdicdf41':
1474                return 'OSD_EBCDIC_DF04_1';
1475
1476            case 'osdebcdicdf415':
1477                return 'OSD_EBCDIC_DF04_15';
1478
1479            case 'cspc8danishnorwegian':
1480            case 'pc8danishnorwegian':
1481                return 'PC8-Danish-Norwegian';
1482
1483            case 'cspc8turkish':
1484            case 'pc8turkish':
1485                return 'PC8-Turkish';
1486
1487            case 'csiso16portuguese':
1488            case 'iso646pt':
1489            case 'isoir16':
1490            case 'pt':
1491                return 'PT';
1492
1493            case 'csiso84portuguese2':
1494            case 'iso646pt2':
1495            case 'isoir84':
1496            case 'pt2':
1497                return 'PT2';
1498
1499            case 'cp154':
1500            case 'csptcp154':
1501            case 'cyrillicasian':
1502            case 'pt154':
1503            case 'ptcp154':
1504                return 'PTCP154';
1505
1506            case 'scsu':
1507                return 'SCSU';
1508
1509            case 'csiso10swedish':
1510            case 'fi':
1511            case 'iso646fi':
1512            case 'iso646se':
1513            case 'isoir10':
1514            case 'se':
1515            case 'sen850200b':
1516                return 'SEN_850200_B';
1517
1518            case 'csiso11swedishfornames':
1519            case 'iso646se2':
1520            case 'isoir11':
1521            case 'se2':
1522            case 'sen850200c':
1523                return 'SEN_850200_C';
1524
1525            case 'csiso102t617bit':
1526            case 'isoir102':
1527            case 't617bit':
1528                return 'T.61-7bit';
1529
1530            case 'csiso103t618bit':
1531            case 'isoir103':
1532            case 't61':
1533            case 't618bit':
1534                return 'T.61-8bit';
1535
1536            case 'csiso128t101g2':
1537            case 'isoir128':
1538            case 't101g2':
1539                return 'T.101-G2';
1540
1541            case 'cstscii':
1542            case 'tscii':
1543                return 'TSCII';
1544
1545            case 'csunicode11':
1546            case 'unicode11':
1547                return 'UNICODE-1-1';
1548
1549            case 'csunicode11utf7':
1550            case 'unicode11utf7':
1551                return 'UNICODE-1-1-UTF-7';
1552
1553            case 'csunknown8bit':
1554            case 'unknown8bit':
1555                return 'UNKNOWN-8BIT';
1556
1557            case 'ansix341968':
1558            case 'ansix341986':
1559            case 'ascii':
1560            case 'cp367':
1561            case 'csascii':
1562            case 'ibm367':
1563            case 'iso646irv1991':
1564            case 'iso646us':
1565            case 'isoir6':
1566            case 'us':
1567            case 'usascii':
1568                return 'US-ASCII';
1569
1570            case 'csusdk':
1571            case 'usdk':
1572                return 'us-dk';
1573
1574            case 'utf7':
1575                return 'UTF-7';
1576
1577            case 'utf8':
1578                return 'UTF-8';
1579
1580            case 'utf16':
1581                return 'UTF-16';
1582
1583            case 'utf16be':
1584                return 'UTF-16BE';
1585
1586            case 'utf16le':
1587                return 'UTF-16LE';
1588
1589            case 'utf32':
1590                return 'UTF-32';
1591
1592            case 'utf32be':
1593                return 'UTF-32BE';
1594
1595            case 'utf32le':
1596                return 'UTF-32LE';
1597
1598            case 'csventurainternational':
1599            case 'venturainternational':
1600                return 'Ventura-International';
1601
1602            case 'csventuramath':
1603            case 'venturamath':
1604                return 'Ventura-Math';
1605
1606            case 'csventuraus':
1607            case 'venturaus':
1608                return 'Ventura-US';
1609
1610            case 'csiso70videotexsupp1':
1611            case 'isoir70':
1612            case 'videotexsuppl':
1613                return 'videotex-suppl';
1614
1615            case 'csviqr':
1616            case 'viqr':
1617                return 'VIQR';
1618
1619            case 'csviscii':
1620            case 'viscii':
1621                return 'VISCII';
1622
1623            case 'csshiftjis':
1624            case 'cswindows31j':
1625            case 'mskanji':
1626            case 'shiftjis':
1627            case 'windows31j':
1628                return 'Windows-31J';
1629
1630            case 'iso885911':
1631            case 'tis620':
1632                return 'windows-874';
1633
1634            case 'cseuckr':
1635            case 'csksc56011987':
1636            case 'euckr':
1637            case 'isoir149':
1638            case 'korean':
1639            case 'ksc5601':
1640            case 'ksc56011987':
1641            case 'ksc56011989':
1642            case 'windows949':
1643                return 'windows-949';
1644
1645            case 'windows1250':
1646                return 'windows-1250';
1647
1648            case 'windows1251':
1649                return 'windows-1251';
1650
1651            case 'cp819':
1652            case 'csisolatin1':
1653            case 'ibm819':
1654            case 'iso88591':
1655            case 'iso885911987':
1656            case 'isoir100':
1657            case 'l1':
1658            case 'latin1':
1659            case 'windows1252':
1660                return 'windows-1252';
1661
1662            case 'windows1253':
1663                return 'windows-1253';
1664
1665            case 'csisolatin5':
1666            case 'iso88599':
1667            case 'iso885991989':
1668            case 'isoir148':
1669            case 'l5':
1670            case 'latin5':
1671            case 'windows1254':
1672                return 'windows-1254';
1673
1674            case 'windows1255':
1675                return 'windows-1255';
1676
1677            case 'windows1256':
1678                return 'windows-1256';
1679
1680            case 'windows1257':
1681                return 'windows-1257';
1682
1683            case 'windows1258':
1684                return 'windows-1258';
1685
1686            default:
1687                return $charset;
1688        }
1689    }
1690
1691    public static function get_curl_version()
1692    {
1693        if (is_array($curl = curl_version())) {
1694            $curl = $curl['version'];
1695        } elseif (substr($curl, 0, 5) === 'curl/') {
1696            $curl = substr($curl, 5, strcspn($curl, "\x09\x0A\x0B\x0C\x0D", 5));
1697        } elseif (substr($curl, 0, 8) === 'libcurl/') {
1698            $curl = substr($curl, 8, strcspn($curl, "\x09\x0A\x0B\x0C\x0D", 8));
1699        } else {
1700            $curl = 0;
1701        }
1702        return $curl;
1703    }
1704
1705    /**
1706     * Strip HTML comments
1707     *
1708     * @param string $data Data to strip comments from
1709     * @return string Comment stripped string
1710     */
1711    public static function strip_comments($data)
1712    {
1713        $output = '';
1714        while (($start = strpos($data, '<!--')) !== false) {
1715            $output .= substr($data, 0, $start);
1716            if (($end = strpos($data, '-->', $start)) !== false) {
1717                $data = substr_replace($data, '', 0, $end + 3);
1718            } else {
1719                $data = '';
1720            }
1721        }
1722        return $output . $data;
1723    }
1724
1725    public static function parse_date($dt)
1726    {
1727        $parser = \SimplePie\Parse\Date::get();
1728        return $parser->parse($dt);
1729    }
1730
1731    /**
1732     * Decode HTML entities
1733     *
1734     * @deprecated since SimplePie 1.3, use DOMDocument instead
1735     * @param string $data Input data
1736     * @return string Output data
1737     */
1738    public static function entities_decode($data)
1739    {
1740        // trigger_error(sprintf('Using method "' . __METHOD__ . '" is deprecated since SimplePie 1.3, use "DOMDocument" instead.'), \E_USER_DEPRECATED);
1741
1742        $decoder = new \SimplePie_Decode_HTML_Entities($data);
1743        return $decoder->parse();
1744    }
1745
1746    /**
1747     * Remove RFC822 comments
1748     *
1749     * @param string $data Data to strip comments from
1750     * @return string Comment stripped string
1751     */
1752    public static function uncomment_rfc822($string)
1753    {
1754        $string = (string) $string;
1755        $position = 0;
1756        $length = strlen($string);
1757        $depth = 0;
1758
1759        $output = '';
1760
1761        while ($position < $length && ($pos = strpos($string, '(', $position)) !== false) {
1762            $output .= substr($string, $position, $pos - $position);
1763            $position = $pos + 1;
1764            if ($string[$pos - 1] !== '\\') {
1765                $depth++;
1766                while ($depth && $position < $length) {
1767                    $position += strcspn($string, '()', $position);
1768                    if ($string[$position - 1] === '\\') {
1769                        $position++;
1770                        continue;
1771                    } elseif (isset($string[$position])) {
1772                        switch ($string[$position]) {
1773                            case '(':
1774                                $depth++;
1775                                break;
1776
1777                            case ')':
1778                                $depth--;
1779                                break;
1780                        }
1781                        $position++;
1782                    } else {
1783                        break;
1784                    }
1785                }
1786            } else {
1787                $output .= '(';
1788            }
1789        }
1790        $output .= substr($string, $position);
1791
1792        return $output;
1793    }
1794
1795    public static function parse_mime($mime)
1796    {
1797        if (($pos = strpos($mime, ';')) === false) {
1798            return trim($mime);
1799        }
1800
1801        return trim(substr($mime, 0, $pos));
1802    }
1803
1804    public static function atom_03_construct_type($attribs)
1805    {
1806        if (isset($attribs['']['mode']) && strtolower(trim($attribs['']['mode'])) === 'base64') {
1807            $mode = \SimplePie\SimplePie::CONSTRUCT_BASE64;
1808        } else {
1809            $mode = \SimplePie\SimplePie::CONSTRUCT_NONE;
1810        }
1811        if (isset($attribs['']['type'])) {
1812            switch (strtolower(trim($attribs['']['type']))) {
1813                case 'text':
1814                case 'text/plain':
1815                    return \SimplePie\SimplePie::CONSTRUCT_TEXT | $mode;
1816
1817                case 'html':
1818                case 'text/html':
1819                    return \SimplePie\SimplePie::CONSTRUCT_HTML | $mode;
1820
1821                case 'xhtml':
1822                case 'application/xhtml+xml':
1823                    return \SimplePie\SimplePie::CONSTRUCT_XHTML | $mode;
1824
1825                default:
1826                    return \SimplePie\SimplePie::CONSTRUCT_NONE | $mode;
1827            }
1828        }
1829
1830        return \SimplePie\SimplePie::CONSTRUCT_TEXT | $mode;
1831    }
1832
1833    public static function atom_10_construct_type($attribs)
1834    {
1835        if (isset($attribs['']['type'])) {
1836            switch (strtolower(trim($attribs['']['type']))) {
1837                case 'text':
1838                    return \SimplePie\SimplePie::CONSTRUCT_TEXT;
1839
1840                case 'html':
1841                    return \SimplePie\SimplePie::CONSTRUCT_HTML;
1842
1843                case 'xhtml':
1844                    return \SimplePie\SimplePie::CONSTRUCT_XHTML;
1845
1846                default:
1847                    return \SimplePie\SimplePie::CONSTRUCT_NONE;
1848            }
1849        }
1850        return \SimplePie\SimplePie::CONSTRUCT_TEXT;
1851    }
1852
1853    public static function atom_10_content_construct_type($attribs)
1854    {
1855        if (isset($attribs['']['type'])) {
1856            $type = strtolower(trim($attribs['']['type']));
1857            switch ($type) {
1858                case 'text':
1859                    return \SimplePie\SimplePie::CONSTRUCT_TEXT;
1860
1861                case 'html':
1862                    return \SimplePie\SimplePie::CONSTRUCT_HTML;
1863
1864                case 'xhtml':
1865                    return \SimplePie\SimplePie::CONSTRUCT_XHTML;
1866            }
1867            if (in_array(substr($type, -4), ['+xml', '/xml']) || substr($type, 0, 5) === 'text/') {
1868                return \SimplePie\SimplePie::CONSTRUCT_NONE;
1869            } else {
1870                return \SimplePie\SimplePie::CONSTRUCT_BASE64;
1871            }
1872        }
1873
1874        return \SimplePie\SimplePie::CONSTRUCT_TEXT;
1875    }
1876
1877    public static function is_isegment_nz_nc($string)
1878    {
1879        return (bool) preg_match('/^([A-Za-z0-9\-._~\x{A0}-\x{D7FF}\x{F900}-\x{FDCF}\x{FDF0}-\x{FFEF}\x{10000}-\x{1FFFD}\x{20000}-\x{2FFFD}\x{30000}-\x{3FFFD}\x{40000}-\x{4FFFD}\x{50000}-\x{5FFFD}\x{60000}-\x{6FFFD}\x{70000}-\x{7FFFD}\x{80000}-\x{8FFFD}\x{90000}-\x{9FFFD}\x{A0000}-\x{AFFFD}\x{B0000}-\x{BFFFD}\x{C0000}-\x{CFFFD}\x{D0000}-\x{DFFFD}\x{E1000}-\x{EFFFD}!$&\'()*+,;=@]|(%[0-9ABCDEF]{2}))+$/u', $string);
1880    }
1881
1882    public static function space_separated_tokens($string)
1883    {
1884        $space_characters = "\x20\x09\x0A\x0B\x0C\x0D";
1885        $string_length = strlen($string);
1886
1887        $position = strspn($string, $space_characters);
1888        $tokens = [];
1889
1890        while ($position < $string_length) {
1891            $len = strcspn($string, $space_characters, $position);
1892            $tokens[] = substr($string, $position, $len);
1893            $position += $len;
1894            $position += strspn($string, $space_characters, $position);
1895        }
1896
1897        return $tokens;
1898    }
1899
1900    /**
1901     * Converts a unicode codepoint to a UTF-8 character
1902     *
1903     * @static
1904     * @param int $codepoint Unicode codepoint
1905     * @return string UTF-8 character
1906     */
1907    public static function codepoint_to_utf8($codepoint)
1908    {
1909        $codepoint = (int) $codepoint;
1910        if ($codepoint < 0) {
1911            return false;
1912        } elseif ($codepoint <= 0x7f) {
1913            return chr($codepoint);
1914        } elseif ($codepoint <= 0x7ff) {
1915            return chr(0xc0 | ($codepoint >> 6)) . chr(0x80 | ($codepoint & 0x3f));
1916        } elseif ($codepoint <= 0xffff) {
1917            return chr(0xe0 | ($codepoint >> 12)) . chr(0x80 | (($codepoint >> 6) & 0x3f)) . chr(0x80 | ($codepoint & 0x3f));
1918        } elseif ($codepoint <= 0x10ffff) {
1919            return chr(0xf0 | ($codepoint >> 18)) . chr(0x80 | (($codepoint >> 12) & 0x3f)) . chr(0x80 | (($codepoint >> 6) & 0x3f)) . chr(0x80 | ($codepoint & 0x3f));
1920        }
1921
1922        // U+FFFD REPLACEMENT CHARACTER
1923        return "\xEF\xBF\xBD";
1924    }
1925
1926    /**
1927     * Similar to parse_str()
1928     *
1929     * Returns an associative array of name/value pairs, where the value is an
1930     * array of values that have used the same name
1931     *
1932     * @static
1933     * @param string $str The input string.
1934     * @return array
1935     */
1936    public static function parse_str($str)
1937    {
1938        $return = [];
1939        $str = explode('&', $str);
1940
1941        foreach ($str as $section) {
1942            if (strpos($section, '=') !== false) {
1943                [$name, $value] = explode('=', $section, 2);
1944                $return[urldecode($name)][] = urldecode($value);
1945            } else {
1946                $return[urldecode($section)][] = null;
1947            }
1948        }
1949
1950        return $return;
1951    }
1952
1953    /**
1954     * Detect XML encoding, as per XML 1.0 Appendix F.1
1955     *
1956     * @todo Add support for EBCDIC
1957     * @param string $data XML data
1958     * @param \SimplePie\Registry $registry Class registry
1959     * @return array Possible encodings
1960     */
1961    public static function xml_encoding($data, $registry)
1962    {
1963        // UTF-32 Big Endian BOM
1964        if (substr($data, 0, 4) === "\x00\x00\xFE\xFF") {
1965            $encoding[] = 'UTF-32BE';
1966        }
1967        // UTF-32 Little Endian BOM
1968        elseif (substr($data, 0, 4) === "\xFF\xFE\x00\x00") {
1969            $encoding[] = 'UTF-32LE';
1970        }
1971        // UTF-16 Big Endian BOM
1972        elseif (substr($data, 0, 2) === "\xFE\xFF") {
1973            $encoding[] = 'UTF-16BE';
1974        }
1975        // UTF-16 Little Endian BOM
1976        elseif (substr($data, 0, 2) === "\xFF\xFE") {
1977            $encoding[] = 'UTF-16LE';
1978        }
1979        // UTF-8 BOM
1980        elseif (substr($data, 0, 3) === "\xEF\xBB\xBF") {
1981            $encoding[] = 'UTF-8';
1982        }
1983        // UTF-32 Big Endian Without BOM
1984        elseif (substr($data, 0, 20) === "\x00\x00\x00\x3C\x00\x00\x00\x3F\x00\x00\x00\x78\x00\x00\x00\x6D\x00\x00\x00\x6C") {
1985            if ($pos = strpos($data, "\x00\x00\x00\x3F\x00\x00\x00\x3E")) {
1986                $parser = $registry->create(Parser::class, [Misc::change_encoding(substr($data, 20, $pos - 20), 'UTF-32BE', 'UTF-8')]);
1987                if ($parser->parse()) {
1988                    $encoding[] = $parser->encoding;
1989                }
1990            }
1991            $encoding[] = 'UTF-32BE';
1992        }
1993        // UTF-32 Little Endian Without BOM
1994        elseif (substr($data, 0, 20) === "\x3C\x00\x00\x00\x3F\x00\x00\x00\x78\x00\x00\x00\x6D\x00\x00\x00\x6C\x00\x00\x00") {
1995            if ($pos = strpos($data, "\x3F\x00\x00\x00\x3E\x00\x00\x00")) {
1996                $parser = $registry->create(Parser::class, [Misc::change_encoding(substr($data, 20, $pos - 20), 'UTF-32LE', 'UTF-8')]);
1997                if ($parser->parse()) {
1998                    $encoding[] = $parser->encoding;
1999                }
2000            }
2001            $encoding[] = 'UTF-32LE';
2002        }
2003        // UTF-16 Big Endian Without BOM
2004        elseif (substr($data, 0, 10) === "\x00\x3C\x00\x3F\x00\x78\x00\x6D\x00\x6C") {
2005            if ($pos = strpos($data, "\x00\x3F\x00\x3E")) {
2006                $parser = $registry->create(Parser::class, [Misc::change_encoding(substr($data, 20, $pos - 10), 'UTF-16BE', 'UTF-8')]);
2007                if ($parser->parse()) {
2008                    $encoding[] = $parser->encoding;
2009                }
2010            }
2011            $encoding[] = 'UTF-16BE';
2012        }
2013        // UTF-16 Little Endian Without BOM
2014        elseif (substr($data, 0, 10) === "\x3C\x00\x3F\x00\x78\x00\x6D\x00\x6C\x00") {
2015            if ($pos = strpos($data, "\x3F\x00\x3E\x00")) {
2016                $parser = $registry->create(Parser::class, [Misc::change_encoding(substr($data, 20, $pos - 10), 'UTF-16LE', 'UTF-8')]);
2017                if ($parser->parse()) {
2018                    $encoding[] = $parser->encoding;
2019                }
2020            }
2021            $encoding[] = 'UTF-16LE';
2022        }
2023        // US-ASCII (or superset)
2024        elseif (substr($data, 0, 5) === "\x3C\x3F\x78\x6D\x6C") {
2025            if ($pos = strpos($data, "\x3F\x3E")) {
2026                $parser = $registry->create(Parser::class, [substr($data, 5, $pos - 5)]);
2027                if ($parser->parse()) {
2028                    $encoding[] = $parser->encoding;
2029                }
2030            }
2031            $encoding[] = 'UTF-8';
2032        }
2033        // Fallback to UTF-8
2034        else {
2035            $encoding[] = 'UTF-8';
2036        }
2037        return $encoding;
2038    }
2039
2040    public static function output_javascript()
2041    {
2042        if (function_exists('ob_gzhandler')) {
2043            ob_start('ob_gzhandler');
2044        }
2045        header('Content-type: text/javascript; charset: UTF-8');
2046        header('Cache-Control: must-revalidate');
2047        header('Expires: ' . gmdate('D, d M Y H:i:s', time() + 604800) . ' GMT'); // 7 days
2048
2049        $body = <<<END
2050function embed_quicktime(type, bgcolor, width, height, link, placeholder, loop) {
2051	if (placeholder != '') {
2052		document.writeln('<embed type="'+type+'" style="cursor:hand; cursor:pointer;" href="'+link+'" src="'+placeholder+'" width="'+width+'" height="'+height+'" autoplay="false" target="myself" controller="false" loop="'+loop+'" scale="aspect" bgcolor="'+bgcolor+'" pluginspage="http://www.apple.com/quicktime/download/"></embed>');
2053	}
2054	else {
2055		document.writeln('<embed type="'+type+'" style="cursor:hand; cursor:pointer;" src="'+link+'" width="'+width+'" height="'+height+'" autoplay="false" target="myself" controller="true" loop="'+loop+'" scale="aspect" bgcolor="'+bgcolor+'" pluginspage="http://www.apple.com/quicktime/download/"></embed>');
2056	}
2057}
2058
2059function embed_flash(bgcolor, width, height, link, loop, type) {
2060	document.writeln('<embed src="'+link+'" pluginspage="http://www.macromedia.com/go/getflashplayer" type="'+type+'" quality="high" width="'+width+'" height="'+height+'" bgcolor="'+bgcolor+'" loop="'+loop+'"></embed>');
2061}
2062
2063function embed_flv(width, height, link, placeholder, loop, player) {
2064	document.writeln('<embed src="'+player+'" pluginspage="http://www.macromedia.com/go/getflashplayer" type="application/x-shockwave-flash" quality="high" width="'+width+'" height="'+height+'" wmode="transparent" flashvars="file='+link+'&autostart=false&repeat='+loop+'&showdigits=true&showfsbutton=false"></embed>');
2065}
2066
2067function embed_wmedia(width, height, link) {
2068	document.writeln('<embed type="application/x-mplayer2" src="'+link+'" autosize="1" width="'+width+'" height="'+height+'" showcontrols="1" showstatusbar="0" showdisplay="0" autostart="0"></embed>');
2069}
2070END;
2071        echo $body;
2072    }
2073
2074    /**
2075     * Get the SimplePie build timestamp
2076     *
2077     * Uses the git index if it exists, otherwise uses the modification time
2078     * of the newest file.
2079     */
2080    public static function get_build()
2081    {
2082        if (static::$SIMPLEPIE_BUILD !== null) {
2083            return static::$SIMPLEPIE_BUILD;
2084        }
2085
2086        $root = dirname(__FILE__, 2);
2087        if (file_exists($root . '/.git/index')) {
2088            static::$SIMPLEPIE_BUILD = filemtime($root . '/.git/index');
2089
2090            return static::$SIMPLEPIE_BUILD;
2091        } elseif (file_exists($root . '/SimplePie')) {
2092            $time = 0;
2093            foreach (glob($root . '/SimplePie/*.php') as $file) {
2094                if (($mtime = filemtime($file)) > $time) {
2095                    $time = $mtime;
2096                }
2097            }
2098            static::$SIMPLEPIE_BUILD = $time;
2099
2100            return static::$SIMPLEPIE_BUILD;
2101        } elseif (file_exists(dirname(__FILE__) . '/Core.php')) {
2102            static::$SIMPLEPIE_BUILD = filemtime(dirname(__FILE__) . '/Core.php');
2103
2104            return static::$SIMPLEPIE_BUILD;
2105        }
2106
2107        static::$SIMPLEPIE_BUILD = filemtime(__FILE__);
2108
2109        return static::$SIMPLEPIE_BUILD;
2110    }
2111
2112    /**
2113     * Get the default user agent string
2114     *
2115     * @return string
2116     */
2117    public static function get_default_useragent()
2118    {
2119        return \SimplePie\SimplePie::NAME . '/' . \SimplePie\SimplePie::VERSION . ' (Feed Parser; ' . \SimplePie\SimplePie::URL . '; Allow like Gecko) Build/' . static::get_build();
2120    }
2121
2122    /**
2123     * Format debugging information
2124     */
2125    public static function debug(&$sp)
2126    {
2127        $info = 'SimplePie ' . \SimplePie\SimplePie::VERSION . ' Build ' . static::get_build() . "\n";
2128        $info .= 'PHP ' . PHP_VERSION . "\n";
2129        if ($sp->error() !== null) {
2130            $info .= 'Error occurred: ' . $sp->error() . "\n";
2131        } else {
2132            $info .= "No error found.\n";
2133        }
2134        $info .= "Extensions:\n";
2135        $extensions = ['pcre', 'curl', 'zlib', 'mbstring', 'iconv', 'xmlreader', 'xml'];
2136        foreach ($extensions as $ext) {
2137            if (extension_loaded($ext)) {
2138                $info .= "    $ext loaded\n";
2139                switch ($ext) {
2140                    case 'pcre':
2141                        $info .= '      Version ' . PCRE_VERSION . "\n";
2142                        break;
2143                    case 'curl':
2144                        $version = curl_version();
2145                        $info .= '      Version ' . $version['version'] . "\n";
2146                        break;
2147                    case 'mbstring':
2148                        $info .= '      Overloading: ' . mb_get_info('func_overload') . "\n";
2149                        break;
2150                    case 'iconv':
2151                        $info .= '      Version ' . ICONV_VERSION . "\n";
2152                        break;
2153                    case 'xml':
2154                        $info .= '      Version ' . LIBXML_DOTTED_VERSION . "\n";
2155                        break;
2156                }
2157            } else {
2158                $info .= "    $ext not loaded\n";
2159            }
2160        }
2161        return $info;
2162    }
2163
2164    public static function silence_errors($num, $str)
2165    {
2166        // No-op
2167    }
2168
2169    /**
2170     * Sanitize a URL by removing HTTP credentials.
2171     * @param string $url the URL to sanitize.
2172     * @return string the same URL without HTTP credentials.
2173     */
2174    public static function url_remove_credentials($url)
2175    {
2176        return preg_replace('#^(https?://)[^/:@]+:[^/:@]+@#i', '$1', $url);
2177    }
2178}
2179
2180class_alias('SimplePie\Misc', 'SimplePie_Misc', false);
2181