+ * Converts a unicode codepoint to a UTF-8 character
+ *
+ * @static
+ * @access public
+ * @param int $codepoint Unicode codepoint
+ * @return string UTF-8 character
+ */
+ function codepoint_to_utf8($codepoint)
+ {
+ $codepoint = (int) $codepoint;
+ if ($codepoint < 0)
+ {
+ return false;
+ }
+ else if ($codepoint <= 0x7f)
+ {
+ return chr($codepoint);
+ }
+ else if ($codepoint <= 0x7ff)
+ {
+ return chr(0xc0 | ($codepoint >> 6)) . chr(0x80 | ($codepoint & 0x3f));
+ }
+ else if ($codepoint <= 0xffff)
+ {
+ return chr(0xe0 | ($codepoint >> 12)) . chr(0x80 | (($codepoint >> 6) & 0x3f)) . chr(0x80 | ($codepoint & 0x3f));
+ }
+ else if ($codepoint <= 0x10ffff)
+ {
+ return chr(0xf0 | ($codepoint >> 18)) . chr(0x80 | (($codepoint >> 12) & 0x3f)) . chr(0x80 | (($codepoint >> 6) & 0x3f)) . chr(0x80 | ($codepoint & 0x3f));
+ }
+ else
+ {
+ // U+FFFD REPLACEMENT CHARACTER
+ return "\xEF\xBF\xBD";
+ }
+ }
+
+ /**
+ * Re-implementation of PHP 5's stripos()
+ *
+ * Returns the numeric position of the first occurrence of needle in the
+ * haystack string.
+ *
+ * @static
+ * @access string
+ * @param object $haystack
+ * @param string $needle Note that the needle may be a string of one or more
+ * characters. If needle is not a string, it is converted to an integer
+ * and applied as the ordinal value of a character.
+ * @param int $offset The optional offset parameter allows you to specify which
+ * character in haystack to start searching. The position returned is still
+ * relative to the beginning of haystack.
+ * @return bool If needle is not found, stripos() will return boolean false.
+ */
+ function stripos($haystack, $needle, $offset = 0)
+ {
+ if (function_exists('stripos'))
+ {
+ return stripos($haystack, $needle, $offset);
+ }
+ else
+ {
+ if (is_string($needle))
+ {
+ $needle = strtolower($needle);
+ }
+ elseif (is_int($needle) || is_bool($needle) || is_double($needle))
+ {
+ $needle = strtolower(chr($needle));
+ }
+ else
+ {
+ trigger_error('needle is not a string or an integer', E_USER_WARNING);
+ return false;
+ }
+
+ return strpos(strtolower($haystack), $needle, $offset);
+ }
+ }
+
+ /**
+ * Similar to parse_str()
+ *
+ * Returns an associative array of name/value pairs, where the value is an
+ * array of values that have used the same name
+ *
+ * @static
+ * @access string
+ * @param string $str The input string.
+ * @return array
+ */
+ function parse_str($str)
+ {
+ $return = array();
+ $str = explode('&', $str);
+
+ foreach ($str as $section)
+ {
+ if (strpos($section, '=') !== false)
+ {
+ list($name, $value) = explode('=', $section, 2);
+ $return[urldecode($name)][] = urldecode($value);
+ }
+ else
+ {
+ $return[urldecode($section)][] = null;
+ }
+ }
+
+ return $return;
+ }
+
+ /**
+ * Detect XML encoding, as per XML 1.0 Appendix F.1
+ *
+ * @todo Add support for EBCDIC
+ * @param string $data XML data
+ * @return array Possible encodings
+ */
+ function xml_encoding($data)
+ {
+ // UTF-32 Big Endian BOM
+ if (substr($data, 0, 4) === "\x00\x00\xFE\xFF")
+ {
+ $encoding[] = 'UTF-32BE';
+ }
+ // UTF-32 Little Endian BOM
+ elseif (substr($data, 0, 4) === "\xFF\xFE\x00\x00")
+ {
+ $encoding[] = 'UTF-32LE';
+ }
+ // UTF-16 Big Endian BOM
+ elseif (substr($data, 0, 2) === "\xFE\xFF")
+ {
+ $encoding[] = 'UTF-16BE';
+ }
+ // UTF-16 Little Endian BOM
+ elseif (substr($data, 0, 2) === "\xFF\xFE")
+ {
+ $encoding[] = 'UTF-16LE';
+ }
+ // UTF-8 BOM
+ elseif (substr($data, 0, 3) === "\xEF\xBB\xBF")
+ {
+ $encoding[] = 'UTF-8';
+ }
+ // UTF-32 Big Endian Without BOM
+ elseif (substr($data, 0, 20) === "\x00\x00\x00\x3C\x00\x00\x00\x3F\x00\x00\x00\x78\x00\x00\x00\x6D\x00\x00\x00\x6C")
+ {
+ if ($pos = strpos($data, "\x00\x00\x00\x3F\x00\x00\x00\x3E"))
+ {
+ $parser =& new SimplePie_XML_Declaration_Parser(SimplePie_Misc::change_encoding(substr($data, 20, $pos - 20), 'UTF-32BE', 'UTF-8'));
+ if ($parser->parse())
+ {
+ $encoding[] = $parser->encoding;
+ }
+ }
+ $encoding[] = 'UTF-32BE';
+ }
+ // UTF-32 Little Endian Without BOM
+ elseif (substr($data, 0, 20) === "\x3C\x00\x00\x00\x3F\x00\x00\x00\x78\x00\x00\x00\x6D\x00\x00\x00\x6C\x00\x00\x00")
+ {
+ if ($pos = strpos($data, "\x3F\x00\x00\x00\x3E\x00\x00\x00"))
+ {
+ $parser =& new SimplePie_XML_Declaration_Parser(SimplePie_Misc::change_encoding(substr($data, 20, $pos - 20), 'UTF-32LE', 'UTF-8'));
+ if ($parser->parse())
+ {
+ $encoding[] = $parser->encoding;
+ }
+ }
+ $encoding[] = 'UTF-32LE';
+ }
+ // UTF-16 Big Endian Without BOM
+ elseif (substr($data, 0, 10) === "\x00\x3C\x00\x3F\x00\x78\x00\x6D\x00\x6C")
+ {
+ if ($pos = strpos($data, "\x00\x3F\x00\x3E"))
+ {
+ $parser =& new SimplePie_XML_Declaration_Parser(SimplePie_Misc::change_encoding(substr($data, 20, $pos - 10), 'UTF-16BE', 'UTF-8'));
+ if ($parser->parse())
+ {
+ $encoding[] = $parser->encoding;
+ }
+ }
+ $encoding[] = 'UTF-16BE';
+ }
+ // UTF-16 Little Endian Without BOM
+ elseif (substr($data, 0, 10) === "\x3C\x00\x3F\x00\x78\x00\x6D\x00\x6C\x00")
+ {
+ if ($pos = strpos($data, "\x3F\x00\x3E\x00"))
+ {
+ $parser =& new SimplePie_XML_Declaration_Parser(SimplePie_Misc::change_encoding(substr($data, 20, $pos - 10), 'UTF-16LE', 'UTF-8'));
+ if ($parser->parse())
+ {
+ $encoding[] = $parser->encoding;
+ }
+ }
+ $encoding[] = 'UTF-16LE';
+ }
+ // US-ASCII (or superset)
+ elseif (substr($data, 0, 5) === "\x3C\x3F\x78\x6D\x6C")
+ {
+ if ($pos = strpos($data, "\x3F\x3E"))
+ {
+ $parser =& new SimplePie_XML_Declaration_Parser(substr($data, 5, $pos - 5));
+ if ($parser->parse())
+ {
+ $encoding[] = $parser->encoding;
+ }
+ }
+ $encoding[] = 'UTF-8';
+ }
+ // Fallback to UTF-8
+ else
+ {
+ $encoding[] = 'UTF-8';
+ }
+ return $encoding;
+ }
+
+ function output_javascript()
+ {
+ if (function_exists('ob_gzhandler'))
+ {
+ ob_start('ob_gzhandler');
+ }
+ header('Content-type: text/javascript; charset: UTF-8');
+ header('Cache-Control: must-revalidate');
+ header('Expires: ' . gmdate('D, d M Y H:i:s', time() + 604800) . ' GMT'); // 7 days
+ ?>
+function embed_odeo(link) {
+ document.writeln('<embed src="http://odeo.com/flash/audio_player_fullsize.swf" pluginspage="http://www.macromedia.com/go/getflashplayer" type="application/x-shockwave-flash" quality="high" width="440" height="80" wmode="transparent" allowScriptAccess="any" flashvars="valid_sample_rate=true&external_url='+link+'"></embed>');
+}
+
+function embed_quicktime(type, bgcolor, width, height, link, placeholder, loop) {
+ if (placeholder != '') {
+ 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>');
+ }
+ else {
+ 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>');
+ }
+}
+
+function embed_flash(bgcolor, width, height, link, loop, type) {
+ 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>');
+}
+
+function embed_flv(width, height, link, placeholder, loop, player) {
+ 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>');
+}
+
+function embed_wmedia(width, height, link) {
+ document.writeln('<embed type="application/x-mplayer2" src="'+link+'" autosize="1" width="'+width+'" height="'+height+'" showcontrols="1" showstatusbar="0" showdisplay="0" autostart="0"></embed>');
+}
+ <?php
+ }
+
+
+
+ /**
+ * Format debugging information
+ */
+ function debug($sp)
+ {
+ $info = 'SimplePie ' . SIMPLEPIE_VERSION . ' Build ' . SIMPLEPIE_BUILD . "\n";
+ $info .= 'PHP ' . PHP_VERSION . "\n";
+ if ($sp->error() !== null)
+ {
+ $info .= 'Error occurred: ' . $sp->error() . "\n";
+ }
+ else
+ {
+ $info .= "No error found.\n";
+ }
+ $info .= "Extensions:\n";
+ $extensions = array('pcre', 'curl', 'zlib', 'mbstring', 'iconv', 'xmlreader', 'xml');
+ foreach ($extensions as $ext)
+ {
+ if (extension_loaded($ext))
+ {
+ $info .= " $ext loaded\n";
+ switch ($ext)
+ {
+ case 'pcre':
+ $info .= ' Version ' . PCRE_VERSION . "\n";
+ break;
+ case 'curl':
+ $version = curl_version();
+ $info .= ' Version ' . $version['version'] . "\n";
+ break;
+ case 'mbstring':
+ $info .= ' Overloading: ' . mb_get_info('func_overload') . "\n";
+ break;
+ case 'iconv':
+ $info .= ' Version ' . ICONV_VERSION . "\n";
+ break;
+ case 'xml':
+ $info .= ' Version ' . LIBXML_DOTTED_VERSION . "\n";
+ break;
+ }
+ }
+ else
+ {
+ $info .= " $ext not loaded\n";
+ }
+ }
+ return $info;
+ }
+}
+
+/**
+ * Decode HTML Entities
+ *
+ * This implements HTML5 as of revision 967 (2007-06-28)
+ *
+ * @package SimplePie
+ */
+class SimplePie_Decode_HTML_Entities
+{
+ /**
+ * Data to be parsed
+ *
+ * @access private
+ * @var string
+ */
+ var $data = '';
+
+ /**
+ * Currently consumed bytes
+ *
+ * @access private
+ * @var string
+ */
+ var $consumed = '';
+
+ /**
+ * Position of the current byte being parsed
+ *
+ * @access private
+ * @var int
+ */
+ var $position = 0;
+
+ /**
+ * Create an instance of the class with the input data
+ *
+ * @access public
+ * @param string $data Input data
+ */
+ function SimplePie_Decode_HTML_Entities($data)
+ {
+ $this->data = $data;
+ }
+
+ /**
+ * Parse the input data
+ *
+ * @access public
+ * @return string Output data
+ */
+ function parse()
+ {
+ while (($this->position = strpos($this->data, '&', $this->position)) !== false)
+ {
+ $this->consume();
+ $this->entity();
+ $this->consumed = '';
+ }
+ return $this->data;
+ }
+
+ /**
+ * Consume the next byte
+ *
+ * @access private
+ * @return mixed The next byte, or false, if there is no more data
+ */
+ function consume()
+ {
+ if (isset($this->data[$this->position]))
+ {
+ $this->consumed .= $this->data[$this->position];
+ return $this->data[$this->position++];
+ }
+ else
+ {
+ return false;
+ }
+ }
+
+ /**
+ * Consume a range of characters
+ *
+ * @access private
+ * @param string $chars Characters to consume
+ * @return mixed A series of characters that match the range, or false
+ */
+ function consume_range($chars)
+ {
+ if ($len = strspn($this->data, $chars, $this->position))
+ {
+ $data = substr($this->data, $this->position, $len);
+ $this->consumed .= $data;
+ $this->position += $len;
+ return $data;
+ }
+ else
+ {
+ return false;
+ }
+ }
+
+ /**
+ * Unconsume one byte
+ *
+ * @access private
+ */
+ function unconsume()
+ {
+ $this->consumed = substr($this->consumed, 0, -1);
+ $this->position--;
+ }
+
+ /**
+ * Decode an entity
+ *
+ * @access private
+ */
+ function entity()
+ {
+ switch ($this->consume())
+ {
+ case "\x09":
+ case "\x0A":
+ case "\x0B":
+ case "\x0B":
+ case "\x0C":
+ case "\x20":
+ case "\x3C":
+ case "\x26":
+ case false:
+ break;
+
+ case "\x23":
+ switch ($this->consume())
+ {
+ case "\x78":
+ case "\x58":
+ $range = '0123456789ABCDEFabcdef';
+ $hex = true;
+ break;
+
+ default:
+ $range = '0123456789';
+ $hex = false;
+ $this->unconsume();
+ break;
+ }
+
+ if ($codepoint = $this->consume_range($range))
+ {
+ static $windows_1252_specials = array(0x0D => "\x0A", 0x80 => "\xE2\x82\xAC", 0x81 => "\xEF\xBF\xBD", 0x82 => "\xE2\x80\x9A", 0x83 => "\xC6\x92", 0x84 => "\xE2\x80\x9E", 0x85 => "\xE2\x80\xA6", 0x86 => "\xE2\x80\xA0", 0x87 => "\xE2\x80\xA1", 0x88 => "\xCB\x86", 0x89 => "\xE2\x80\xB0", 0x8A => "\xC5\xA0", 0x8B => "\xE2\x80\xB9", 0x8C => "\xC5\x92", 0x8D => "\xEF\xBF\xBD", 0x8E => "\xC5\xBD", 0x8F => "\xEF\xBF\xBD", 0x90 => "\xEF\xBF\xBD", 0x91 => "\xE2\x80\x98", 0x92 => "\xE2\x80\x99", 0x93 => "\xE2\x80\x9C", 0x94 => "\xE2\x80\x9D", 0x95 => "\xE2\x80\xA2", 0x96 => "\xE2\x80\x93", 0x97 => "\xE2\x80\x94", 0x98 => "\xCB\x9C", 0x99 => "\xE2\x84\xA2", 0x9A => "\xC5\xA1", 0x9B => "\xE2\x80\xBA", 0x9C => "\xC5\x93", 0x9D => "\xEF\xBF\xBD", 0x9E => "\xC5\xBE", 0x9F => "\xC5\xB8");
+
+ if ($hex)
+ {
+ $codepoint = hexdec($codepoint);
+ }
+ else
+ {
+ $codepoint = intval($codepoint);
+ }
+
+ if (isset($windows_1252_specials[$codepoint]))
+ {
+ $replacement = $windows_1252_specials[$codepoint];
+ }
+ else
+ {
+ $replacement = SimplePie_Misc::codepoint_to_utf8($codepoint);
+ }
+
+ if (!in_array($this->consume(), array(';', false), true))
+ {
+ $this->unconsume();
+ }
+
+ $consumed_length = strlen($this->consumed);
+ $this->data = substr_replace($this->data, $replacement, $this->position - $consumed_length, $consumed_length);
+ $this->position += strlen($replacement) - $consumed_length;
+ }
+ break;
+
+ default:
+ static $entities = array('Aacute' => "\xC3\x81", 'aacute' => "\xC3\xA1", 'Aacute;' => "\xC3\x81", 'aacute;' => "\xC3\xA1", 'Acirc' => "\xC3\x82", 'acirc' => "\xC3\xA2", 'Acirc;' => "\xC3\x82", 'acirc;' => "\xC3\xA2", 'acute' => "\xC2\xB4", 'acute;' => "\xC2\xB4", 'AElig' => "\xC3\x86", 'aelig' => "\xC3\xA6", 'AElig;' => "\xC3\x86", 'aelig;' => "\xC3\xA6", 'Agrave' => "\xC3\x80", 'agrave' => "\xC3\xA0", 'Agrave;' => "\xC3\x80", 'agrave;' => "\xC3\xA0", 'alefsym;' => "\xE2\x84\xB5", 'Alpha;' => "\xCE\x91", 'alpha;' => "\xCE\xB1", 'AMP' => "\x26", 'amp' => "\x26", 'AMP;' => "\x26", 'amp;' => "\x26", 'and;' => "\xE2\x88\xA7", 'ang;' => "\xE2\x88\xA0", 'apos;' => "\x27", 'Aring' => "\xC3\x85", 'aring' => "\xC3\xA5", 'Aring;' => "\xC3\x85", 'aring;' => "\xC3\xA5", 'asymp;' => "\xE2\x89\x88", 'Atilde' => "\xC3\x83", 'atilde' => "\xC3\xA3", 'Atilde;' => "\xC3\x83", 'atilde;' => "\xC3\xA3", 'Auml' => "\xC3\x84", 'auml' => "\xC3\xA4", 'Auml;' => "\xC3\x84", 'auml;' => "\xC3\xA4", 'bdquo;' => "\xE2\x80\x9E", 'Beta;' => "\xCE\x92", 'beta;' => "\xCE\xB2", 'brvbar' => "\xC2\xA6", 'brvbar;' => "\xC2\xA6", 'bull;' => "\xE2\x80\xA2", 'cap;' => "\xE2\x88\xA9", 'Ccedil' => "\xC3\x87", 'ccedil' => "\xC3\xA7", 'Ccedil;' => "\xC3\x87", 'ccedil;' => "\xC3\xA7", 'cedil' => "\xC2\xB8", 'cedil;' => "\xC2\xB8", 'cent' => "\xC2\xA2", 'cent;' => "\xC2\xA2", 'Chi;' => "\xCE\xA7", 'chi;' => "\xCF\x87", 'circ;' => "\xCB\x86", 'clubs;' => "\xE2\x99\xA3", 'cong;' => "\xE2\x89\x85", 'COPY' => "\xC2\xA9", 'copy' => "\xC2\xA9", 'COPY;' => "\xC2\xA9", 'copy;' => "\xC2\xA9", 'crarr;' => "\xE2\x86\xB5", 'cup;' => "\xE2\x88\xAA", 'curren' => "\xC2\xA4", 'curren;' => "\xC2\xA4", 'Dagger;' => "\xE2\x80\xA1", 'dagger;' => "\xE2\x80\xA0", 'dArr;' => "\xE2\x87\x93", 'darr;' => "\xE2\x86\x93", 'deg' => "\xC2\xB0", 'deg;' => "\xC2\xB0", 'Delta;' => "\xCE\x94", 'delta;' => "\xCE\xB4", 'diams;' => "\xE2\x99\xA6", 'divide' => "\xC3\xB7", 'divide;' => "\xC3\xB7", 'Eacute' => "\xC3\x89", 'eacute' => "\xC3\xA9", 'Eacute;' => "\xC3\x89", 'eacute;' => "\xC3\xA9", 'Ecirc' => "\xC3\x8A", 'ecirc' => "\xC3\xAA", 'Ecirc;' => "\xC3\x8A", 'ecirc;' => "\xC3\xAA", 'Egrave' => "\xC3\x88", 'egrave' => "\xC3\xA8", 'Egrave;' => "\xC3\x88", 'egrave;' => "\xC3\xA8", 'empty;' => "\xE2\x88\x85", 'emsp;' => "\xE2\x80\x83", 'ensp;' => "\xE2\x80\x82", 'Epsilon;' => "\xCE\x95", 'epsilon;' => "\xCE\xB5", 'equiv;' => "\xE2\x89\xA1", 'Eta;' => "\xCE\x97", 'eta;' => "\xCE\xB7", 'ETH' => "\xC3\x90", 'eth' => "\xC3\xB0", 'ETH;' => "\xC3\x90", 'eth;' => "\xC3\xB0", 'Euml' => "\xC3\x8B", 'euml' => "\xC3\xAB", 'Euml;' => "\xC3\x8B", 'euml;' => "\xC3\xAB", 'euro;' => "\xE2\x82\xAC", 'exist;' => "\xE2\x88\x83", 'fnof;' => "\xC6\x92", 'forall;' => "\xE2\x88\x80", 'frac12' => "\xC2\xBD", 'frac12;' => "\xC2\xBD", 'frac14' => "\xC2\xBC", 'frac14;' => "\xC2\xBC", 'frac34' => "\xC2\xBE", 'frac34;' => "\xC2\xBE", 'frasl;' => "\xE2\x81\x84", 'Gamma;' => "\xCE\x93", 'gamma;' => "\xCE\xB3", 'ge;' => "\xE2\x89\xA5", 'GT' => "\x3E", 'gt' => "\x3E", 'GT;' => "\x3E", 'gt;' => "\x3E", 'hArr;' => "\xE2\x87\x94", 'harr;' => "\xE2\x86\x94", 'hearts;' => "\xE2\x99\xA5", 'hellip;' => "\xE2\x80\xA6", 'Iacute' => "\xC3\x8D", 'iacute' => "\xC3\xAD", 'Iacute;' => "\xC3\x8D", 'iacute;' => "\xC3\xAD", 'Icirc' => "\xC3\x8E", 'icirc' => "\xC3\xAE", 'Icirc;' => "\xC3\x8E", 'icirc;' => "\xC3\xAE", 'iexcl' => "\xC2\xA1", 'iexcl;' => "\xC2\xA1", 'Igrave' => "\xC3\x8C", 'igrave' => "\xC3\xAC", 'Igrave;' => "\xC3\x8C", 'igrave;' => "\xC3\xAC", 'image;' => "\xE2\x84\x91", 'infin;' => "\xE2\x88\x9E", 'int;' => "\xE2\x88\xAB", 'Iota;' => "\xCE\x99", 'iota;' => "\xCE\xB9", 'iquest' => "\xC2\xBF", 'iquest;' => "\xC2\xBF", 'isin;' => "\xE2\x88\x88", 'Iuml' => "\xC3\x8F", 'iuml' => "\xC3\xAF", 'Iuml;' => "\xC3\x8F", 'iuml;' => "\xC3\xAF", 'Kappa;' => "\xCE\x9A", 'kappa;' => "\xCE\xBA", 'Lambda;' => "\xCE\x9B", 'lambda;' => "\xCE\xBB", 'lang;' => "\xE3\x80\x88", 'laquo' => "\xC2\xAB", 'laquo;' => "\xC2\xAB", 'lArr;' => "\xE2\x87\x90", 'larr;' => "\xE2\x86\x90", 'lceil;' => "\xE2\x8C\x88", 'ldquo;' => "\xE2\x80\x9C", 'le;' => "\xE2\x89\xA4", 'lfloor;' => "\xE2\x8C\x8A", 'lowast;' => "\xE2\x88\x97", 'loz;' => "\xE2\x97\x8A", 'lrm;' => "\xE2\x80\x8E", 'lsaquo;' => "\xE2\x80\xB9", 'lsquo;' => "\xE2\x80\x98", 'LT' => "\x3C", 'lt' => "\x3C", 'LT;' => "\x3C", 'lt;' => "\x3C", 'macr' => "\xC2\xAF", 'macr;' => "\xC2\xAF", 'mdash;' => "\xE2\x80\x94", 'micro' => "\xC2\xB5", 'micro;' => "\xC2\xB5", 'middot' => "\xC2\xB7", 'middot;' => "\xC2\xB7", 'minus;' => "\xE2\x88\x92", 'Mu;' => "\xCE\x9C", 'mu;' => "\xCE\xBC", 'nabla;' => "\xE2\x88\x87", 'nbsp' => "\xC2\xA0", 'nbsp;' => "\xC2\xA0", 'ndash;' => "\xE2\x80\x93", 'ne;' => "\xE2\x89\xA0", 'ni;' => "\xE2\x88\x8B", 'not' => "\xC2\xAC", 'not;' => "\xC2\xAC", 'notin;' => "\xE2\x88\x89", 'nsub;' => "\xE2\x8A\x84", 'Ntilde' => "\xC3\x91", 'ntilde' => "\xC3\xB1", 'Ntilde;' => "\xC3\x91", 'ntilde;' => "\xC3\xB1", 'Nu;' => "\xCE\x9D", 'nu;' => "\xCE\xBD", 'Oacute' => "\xC3\x93", 'oacute' => "\xC3\xB3", 'Oacute;' => "\xC3\x93", 'oacute;' => "\xC3\xB3", 'Ocirc' => "\xC3\x94", 'ocirc' => "\xC3\xB4", 'Ocirc;' => "\xC3\x94", 'ocirc;' => "\xC3\xB4", 'OElig;' => "\xC5\x92", 'oelig;' => "\xC5\x93", 'Ograve' => "\xC3\x92", 'ograve' => "\xC3\xB2", 'Ograve;' => "\xC3\x92", 'ograve;' => "\xC3\xB2", 'oline;' => "\xE2\x80\xBE", 'Omega;' => "\xCE\xA9", 'omega;' => "\xCF\x89", 'Omicron;' => "\xCE\x9F", 'omicron;' => "\xCE\xBF", 'oplus;' => "\xE2\x8A\x95", 'or;' => "\xE2\x88\xA8", 'ordf' => "\xC2\xAA", 'ordf;' => "\xC2\xAA", 'ordm' => "\xC2\xBA", 'ordm;' => "\xC2\xBA", 'Oslash' => "\xC3\x98", 'oslash' => "\xC3\xB8", 'Oslash;' => "\xC3\x98", 'oslash;' => "\xC3\xB8", 'Otilde' => "\xC3\x95", 'otilde' => "\xC3\xB5", 'Otilde;' => "\xC3\x95", 'otilde;' => "\xC3\xB5", 'otimes;' => "\xE2\x8A\x97", 'Ouml' => "\xC3\x96", 'ouml' => "\xC3\xB6", 'Ouml;' => "\xC3\x96", 'ouml;' => "\xC3\xB6", 'para' => "\xC2\xB6", 'para;' => "\xC2\xB6", 'part;' => "\xE2\x88\x82", 'permil;' => "\xE2\x80\xB0", 'perp;' => "\xE2\x8A\xA5", 'Phi;' => "\xCE\xA6", 'phi;' => "\xCF\x86", 'Pi;' => "\xCE\xA0", 'pi;' => "\xCF\x80", 'piv;' => "\xCF\x96", 'plusmn' => "\xC2\xB1", 'plusmn;' => "\xC2\xB1", 'pound' => "\xC2\xA3", 'pound;' => "\xC2\xA3", 'Prime;' => "\xE2\x80\xB3", 'prime;' => "\xE2\x80\xB2", 'prod;' => "\xE2\x88\x8F", 'prop;' => "\xE2\x88\x9D", 'Psi;' => "\xCE\xA8", 'psi;' => "\xCF\x88", 'QUOT' => "\x22", 'quot' => "\x22", 'QUOT;' => "\x22", 'quot;' => "\x22", 'radic;' => "\xE2\x88\x9A", 'rang;' => "\xE3\x80\x89", 'raquo' => "\xC2\xBB", 'raquo;' => "\xC2\xBB", 'rArr;' => "\xE2\x87\x92", 'rarr;' => "\xE2\x86\x92", 'rceil;' => "\xE2\x8C\x89", 'rdquo;' => "\xE2\x80\x9D", 'real;' => "\xE2\x84\x9C", 'REG' => "\xC2\xAE", 'reg' => "\xC2\xAE", 'REG;' => "\xC2\xAE", 'reg;' => "\xC2\xAE", 'rfloor;' => "\xE2\x8C\x8B", 'Rho;' => "\xCE\xA1", 'rho;' => "\xCF\x81", 'rlm;' => "\xE2\x80\x8F", 'rsaquo;' => "\xE2\x80\xBA", 'rsquo;' => "\xE2\x80\x99", 'sbquo;' => "\xE2\x80\x9A", 'Scaron;' => "\xC5\xA0", 'scaron;' => "\xC5\xA1", 'sdot;' => "\xE2\x8B\x85", 'sect' => "\xC2\xA7", 'sect;' => "\xC2\xA7", 'shy' => "\xC2\xAD", 'shy;' => "\xC2\xAD", 'Sigma;' => "\xCE\xA3", 'sigma;' => "\xCF\x83", 'sigmaf;' => "\xCF\x82", 'sim;' => "\xE2\x88\xBC", 'spades;' => "\xE2\x99\xA0", 'sub;' => "\xE2\x8A\x82", 'sube;' => "\xE2\x8A\x86", 'sum;' => "\xE2\x88\x91", 'sup;' => "\xE2\x8A\x83", 'sup1' => "\xC2\xB9", 'sup1;' => "\xC2\xB9", 'sup2' => "\xC2\xB2", 'sup2;' => "\xC2\xB2", 'sup3' => "\xC2\xB3", 'sup3;' => "\xC2\xB3", 'supe;' => "\xE2\x8A\x87", 'szlig' => "\xC3\x9F", 'szlig;' => "\xC3\x9F", 'Tau;' => "\xCE\xA4", 'tau;' => "\xCF\x84", 'there4;' => "\xE2\x88\xB4", 'Theta;' => "\xCE\x98", 'theta;' => "\xCE\xB8", 'thetasym;' => "\xCF\x91", 'thinsp;' => "\xE2\x80\x89", 'THORN' => "\xC3\x9E", 'thorn' => "\xC3\xBE", 'THORN;' => "\xC3\x9E", 'thorn;' => "\xC3\xBE", 'tilde;' => "\xCB\x9C", 'times' => "\xC3\x97", 'times;' => "\xC3\x97", 'TRADE;' => "\xE2\x84\xA2", 'trade;' => "\xE2\x84\xA2", 'Uacute' => "\xC3\x9A", 'uacute' => "\xC3\xBA", 'Uacute;' => "\xC3\x9A", 'uacute;' => "\xC3\xBA", 'uArr;' => "\xE2\x87\x91", 'uarr;' => "\xE2\x86\x91", 'Ucirc' => "\xC3\x9B", 'ucirc' => "\xC3\xBB", 'Ucirc;' => "\xC3\x9B", 'ucirc;' => "\xC3\xBB", 'Ugrave' => "\xC3\x99", 'ugrave' => "\xC3\xB9", 'Ugrave;' => "\xC3\x99", 'ugrave;' => "\xC3\xB9", 'uml' => "\xC2\xA8", 'uml;' => "\xC2\xA8", 'upsih;' => "\xCF\x92", 'Upsilon;' => "\xCE\xA5", 'upsilon;' => "\xCF\x85", 'Uuml' => "\xC3\x9C", 'uuml' => "\xC3\xBC", 'Uuml;' => "\xC3\x9C", 'uuml;' => "\xC3\xBC", 'weierp;' => "\xE2\x84\x98", 'Xi;' => "\xCE\x9E", 'xi;' => "\xCE\xBE", 'Yacute' => "\xC3\x9D", 'yacute' => "\xC3\xBD", 'Yacute;' => "\xC3\x9D", 'yacute;' => "\xC3\xBD", 'yen' => "\xC2\xA5", 'yen;' => "\xC2\xA5", 'yuml' => "\xC3\xBF", 'Yuml;' => "\xC5\xB8", 'yuml;' => "\xC3\xBF", 'Zeta;' => "\xCE\x96", 'zeta;' => "\xCE\xB6", 'zwj;' => "\xE2\x80\x8D", 'zwnj;' => "\xE2\x80\x8C");
+
+ for ($i = 0, $match = null; $i < 9 && $this->consume() !== false; $i++)
+ {
+ $consumed = substr($this->consumed, 1);
+ if (isset($entities[$consumed]))
+ {
+ $match = $consumed;
+ }
+ }
+
+ if ($match !== null)
+ {
+ $this->data = substr_replace($this->data, $entities[$match], $this->position - strlen($consumed) - 1, strlen($match) + 1);
+ $this->position += strlen($entities[$match]) - strlen($consumed) - 1;
+ }
+ break;
+ }
+ }
+}
+
+/**
+ * IRI parser/serialiser
+ *
+ * @package SimplePie
+ */
+class SimplePie_IRI
+{
+ /**
+ * Scheme
+ *
+ * @access private
+ * @var string
+ */
+ var $scheme;
+
+ /**
+ * User Information
+ *
+ * @access private
+ * @var string
+ */
+ var $userinfo;
+
+ /**
+ * Host
+ *
+ * @access private
+ * @var string
+ */
+ var $host;
+
+ /**
+ * Port
+ *
+ * @access private
+ * @var string
+ */
+ var $port;
+
+ /**
+ * Path
+ *
+ * @access private
+ * @var string
+ */
+ var $path;
+
+ /**
+ * Query
+ *
+ * @access private
+ * @var string
+ */
+ var $query;
+
+ /**
+ * Fragment
+ *
+ * @access private
+ * @var string
+ */
+ var $fragment;
+
+ /**
+ * Whether the object represents a valid IRI
+ *
+ * @access private
+ * @var array
+ */
+ var $valid = array();
+
+ /**
+ * Return the entire IRI when you try and read the object as a string
+ *
+ * @access public
+ * @return string
+ */
+ function __toString()
+ {
+ return $this->get_iri();
+ }
+
+ /**
+ * Create a new IRI object, from a specified string
+ *
+ * @access public
+ * @param string $iri
+ * @return SimplePie_IRI
+ */
+ function SimplePie_IRI($iri)
+ {
+ $iri = (string) $iri;
+ if ($iri !== '')
+ {
+ $parsed = $this->parse_iri($iri);
+ $this->set_scheme($parsed['scheme']);
+ $this->set_authority($parsed['authority']);
+ $this->set_path($parsed['path']);
+ $this->set_query($parsed['query']);
+ $this->set_fragment($parsed['fragment']);
+ }
+ }
+
+ /**
+ * Create a new IRI object by resolving a relative IRI
+ *
+ * @static
+ * @access public
+ * @param SimplePie_IRI $base Base IRI
+ * @param string $relative Relative IRI
+ * @return SimplePie_IRI
+ */
+ function absolutize($base, $relative)
+ {
+ $relative = (string) $relative;
+ if ($relative !== '')
+ {
+ $relative =& new SimplePie_IRI($relative);
+ if ($relative->get_scheme() !== null)
+ {
+ $target = $relative;
+ }
+ elseif ($base->get_iri() !== null)
+ {
+ if ($relative->get_authority() !== null)
+ {
+ $target = $relative;
+ $target->set_scheme($base->get_scheme());
+ }
+ else
+ {
+ $target =& new SimplePie_IRI('');
+ $target->set_scheme($base->get_scheme());
+ $target->set_userinfo($base->get_userinfo());
+ $target->set_host($base->get_host());
+ $target->set_port($base->get_port());
+ if ($relative->get_path() !== null)
+ {
+ if (strpos($relative->get_path(), '/') === 0)
+ {
+ $target->set_path($relative->get_path());
+ }
+ elseif (($base->get_userinfo() !== null || $base->get_host() !== null || $base->get_port() !== null) && $base->get_path() === null)
+ {
+ $target->set_path('/' . $relative->get_path());
+ }
+ elseif (($last_segment = strrpos($base->get_path(), '/')) !== false)
+ {
+ $target->set_path(substr($base->get_path(), 0, $last_segment + 1) . $relative->get_path());
+ }
+ else
+ {
+ $target->set_path($relative->get_path());
+ }
+ $target->set_query($relative->get_query());
+ }
+ else
+ {
+ $target->set_path($base->get_path());
+ if ($relative->get_query() !== null)
+ {
+ $target->set_query($relative->get_query());
+ }
+ elseif ($base->get_query() !== null)
+ {
+ $target->set_query($base->get_query());
+ }
+ }
+ }
+ $target->set_fragment($relative->get_fragment());
+ }
+ else
+ {
+ // No base URL, just return the relative URL
+ $target = $relative;
+ }
+ }
+ else
+ {
+ $target = $base;
+ }
+ return $target;
+ }
+
+ /**
+ * Parse an IRI into scheme/authority/path/query/fragment segments
+ *
+ * @access private
+ * @param string $iri
+ * @return array
+ */
+ function parse_iri($iri)
+ {
+ preg_match('/^(([^:\/?#]+):)?(\/\/([^\/?#]*))?([^?#]*)(\?([^#]*))?(#(.*))?$/', $iri, $match);
+ for ($i = count($match); $i <= 9; $i++)
+ {
+ $match[$i] = '';
+ }
+ return array('scheme' => $match[2], 'authority' => $match[4], 'path' => $match[5], 'query' => $match[7], 'fragment' => $match[9]);
+ }
+
+ /**
+ * Remove dot segments from a path
+ *
+ * @access private
+ * @param string $input
+ * @return string
+ */
+ function remove_dot_segments($input)
+ {
+ $output = '';
+ while (strpos($input, './') !== false || strpos($input, '/.') !== false || $input === '.' || $input === '..')
+ {
+ // A: If the input buffer begins with a prefix of "../" or "./", then remove that prefix from the input buffer; otherwise,
+ if (strpos($input, '../') === 0)
+ {
+ $input = substr($input, 3);
+ }
+ elseif (strpos($input, './') === 0)
+ {
+ $input = substr($input, 2);
+ }
+ // B: if the input buffer begins with a prefix of "/./" or "/.", where "." is a complete path segment, then replace that prefix with "/" in the input buffer; otherwise,
+ elseif (strpos($input, '/./') === 0)
+ {
+ $input = substr_replace($input, '/', 0, 3);
+ }
+ elseif ($input === '/.')
+ {
+ $input = '/';
+ }
+ // C: if the input buffer begins with a prefix of "/../" or "/..", where ".." is a complete path segment, then replace that prefix with "/" in the input buffer and remove the last segment and its preceding "/" (if any) from the output buffer; otherwise,
+ elseif (strpos($input, '/../') === 0)
+ {
+ $input = substr_replace($input, '/', 0, 4);
+ $output = substr_replace($output, '', strrpos($output, '/'));
+ }
+ elseif ($input === '/..')
+ {
+ $input = '/';
+ $output = substr_replace($output, '', strrpos($output, '/'));
+ }
+ // D: if the input buffer consists only of "." or "..", then remove that from the input buffer; otherwise,
+ elseif ($input === '.' || $input === '..')
+ {
+ $input = '';
+ }
+ // E: move the first path segment in the input buffer to the end of the output buffer, including the initial "/" character (if any) and any subsequent characters up to, but not including, the next "/" character or the end of the input buffer
+ elseif (($pos = strpos($input, '/', 1)) !== false)
+ {
+ $output .= substr($input, 0, $pos);
+ $input = substr_replace($input, '', 0, $pos);
+ }
+ else
+ {
+ $output .= $input;
+ $input = '';
+ }
+ }
+ return $output . $input;
+ }
+
+ /**
+ * Replace invalid character with percent encoding
+ *
+ * @param string $string Input string
+ * @param string $valid_chars Valid characters
+ * @param int $case Normalise case
+ * @return string
+ */
+ function replace_invalid_with_pct_encoding($string, $valid_chars, $case = SIMPLEPIE_SAME_CASE, $iprivate = false)
+ {
+ // Normalize as many pct-encoded sections as possible
+ $string = preg_replace_callback('/(?:%[A-Fa-f0-9]{2})+/', array(&$this, 'remove_iunreserved_percent_encoded'), $string);
+
+ // Replace invalid percent characters
+ $string = preg_replace('/%(?![A-Fa-f0-9]{2})/', '%25', $string);
+
+ // Add unreserved and % to $valid_chars (the latter is safe because all
+ // pct-encoded sections are now valid).
+ $valid_chars .= 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789-._~%';
+
+ // Now replace any bytes that aren't allowed with their pct-encoded versions
+ $position = 0;
+ $strlen = strlen($string);
+ while (($position += strspn($string, $valid_chars, $position)) < $strlen)
+ {
+ $value = ord($string[$position]);
+
+ // Start position
+ $start = $position;
+
+ // By default we are valid
+ $valid = true;
+
+ // No one byte sequences are valid due to the while.
+ // Two byte sequence:
+ if (($value & 0xE0) === 0xC0)
+ {
+ $character = ($value & 0x1F) << 6;
+ $length = 2;
+ $remaining = 1;
+ }
+ // Three byte sequence:
+ elseif (($value & 0xF0) === 0xE0)
+ {
+ $character = ($value & 0x0F) << 12;
+ $length = 3;
+ $remaining = 2;
+ }
+ // Four byte sequence:
+ elseif (($value & 0xF8) === 0xF0)
+ {
+ $character = ($value & 0x07) << 18;
+ $length = 4;
+ $remaining = 3;
+ }
+ // Invalid byte:
+ else
+ {
+ $valid = false;
+ $length = 1;
+ $remaining = 0;
+ }
+
+ if ($remaining)
+ {
+ if ($position + $length <= $strlen)
+ {
+ for ($position++; $remaining; $position++)
+ {
+ $value = ord($string[$position]);
+
+ // Check that the byte is valid, then add it to the character:
+ if (($value & 0xC0) === 0x80)
+ {
+ $character |= ($value & 0x3F) << (--$remaining * 6);
+ }
+ // If it is invalid, count the sequence as invalid and reprocess the current byte:
+ else
+ {
+ $valid = false;
+ $position--;
+ break;
+ }
+ }
+ }
+ else
+ {
+ $position = $strlen - 1;
+ $valid = false;
+ }
+ }
+
+ // Percent encode anything invalid or not in ucschar
+ if (
+ // Invalid sequences
+ !$valid
+ // Non-shortest form sequences are invalid
+ || $length > 1 && $character <= 0x7F
+ || $length > 2 && $character <= 0x7FF
+ || $length > 3 && $character <= 0xFFFF
+ // Outside of range of ucschar codepoints
+ // Noncharacters
+ || ($character & 0xFFFE) === 0xFFFE
+ || $character >= 0xFDD0 && $character <= 0xFDEF
+ || (
+ // Everything else not in ucschar
+ $character > 0xD7FF && $character < 0xF900
+ || $character < 0xA0
+ || $character > 0xEFFFD
+ )
+ && (
+ // Everything not in iprivate, if it applies
+ !$iprivate
+ || $character < 0xE000
+ || $character > 0x10FFFD
+ )
+ )
+ {
+ // If we were a character, pretend we weren't, but rather an error.
+ if ($valid)
+ $position--;
+
+ for ($j = $start; $j <= $position; $j++)
+ {
+ $string = substr_replace($string, sprintf('%%%02X', ord($string[$j])), $j, 1);
+ $j += 2;
+ $position += 2;
+ $strlen += 2;
+ }
+ }
+ }
+
+ // Normalise case
+ if ($case & SIMPLEPIE_LOWERCASE)
+ {
+ $string = strtolower($string);
+ }
+ elseif ($case & SIMPLEPIE_UPPERCASE)
+ {
+ $string = strtoupper($string);
+ }
+
+ return $string;
+ }
+
+ /**
+ * Callback function for preg_replace_callback.
+ *
+ * Removes sequences of percent encoded bytes that represent UTF-8
+ * encoded characters in iunreserved
+ *
+ * @access private
+ * @param array $match PCRE match
+ * @return string Replacement
+ */
+ function remove_iunreserved_percent_encoded($match)
+ {
+ // As we just have valid percent encoded sequences we can just explode
+ // and ignore the first member of the returned array (an empty string).
+ $bytes = explode('%', $match[0]);
+
+ // Initialize the new string (this is what will be returned) and that
+ // there are no bytes remaining in the current sequence (unsurprising
+ // at the first byte!).
+ $string = '';
+ $remaining = 0;
+
+ // Loop over each and every byte, and set $value to its value
+ for ($i = 1, $len = count($bytes); $i < $len; $i++)
+ {
+ $value = hexdec($bytes[$i]);
+
+ // If we're the first byte of sequence:
+ if (!$remaining)
+ {
+ // Start position
+ $start = $i;
+
+ // By default we are valid
+ $valid = true;
+
+ // One byte sequence:
+ if ($value <= 0x7F)
+ {
+ $character = $value;
+ $length = 1;
+ }
+ // Two byte sequence:
+ elseif (($value & 0xE0) === 0xC0)
+ {
+ $character = ($value & 0x1F) << 6;
+ $length = 2;
+ $remaining = 1;
+ }
+ // Three byte sequence:
+ elseif (($value & 0xF0) === 0xE0)
+ {
+ $character = ($value & 0x0F) << 12;
+ $length = 3;
+ $remaining = 2;
+ }
+ // Four byte sequence:
+ elseif (($value & 0xF8) === 0xF0)
+ {
+ $character = ($value & 0x07) << 18;
+ $length = 4;
+ $remaining = 3;
+ }
+ // Invalid byte:
+ else
+ {
+ $valid = false;
+ $remaining = 0;
+ }
+ }
+ // Continuation byte:
+ else
+ {
+ // Check that the byte is valid, then add it to the character:
+ if (($value & 0xC0) === 0x80)
+ {
+ $remaining--;
+ $character |= ($value & 0x3F) << ($remaining * 6);
+ }
+ // If it is invalid, count the sequence as invalid and reprocess the current byte as the start of a sequence:
+ else
+ {
+ $valid = false;
+ $remaining = 0;
+ $i--;
+ }
+ }
+
+ // If we've reached the end of the current byte sequence, append it to Unicode::$data
+ if (!$remaining)
+ {
+ // Percent encode anything invalid or not in iunreserved
+ if (
+ // Invalid sequences
+ !$valid
+ // Non-shortest form sequences are invalid
+ || $length > 1 && $character <= 0x7F
+ || $length > 2 && $character <= 0x7FF
+ || $length > 3 && $character <= 0xFFFF
+ // Outside of range of iunreserved codepoints
+ || $character < 0x2D
+ || $character > 0xEFFFD
+ // Noncharacters
+ || ($character & 0xFFFE) === 0xFFFE
+ || $character >= 0xFDD0 && $character <= 0xFDEF
+ // Everything else not in iunreserved (this is all BMP)
+ || $character === 0x2F
+ || $character > 0x39 && $character < 0x41
+ || $character > 0x5A && $character < 0x61
+ || $character > 0x7A && $character < 0x7E
+ || $character > 0x7E && $character < 0xA0
+ || $character > 0xD7FF && $character < 0xF900
+ )
+ {
+ for ($j = $start; $j <= $i; $j++)
+ {
+ $string .= '%' . strtoupper($bytes[$j]);
+ }
+ }
+ else
+ {
+ for ($j = $start; $j <= $i; $j++)
+ {
+ $string .= chr(hexdec($bytes[$j]));
+ }
+ }
+ }
+ }
+
+ // If we have any bytes left over they are invalid (i.e., we are
+ // mid-way through a multi-byte sequence)
+ if ($remaining)
+ {
+ for ($j = $start; $j < $len; $j++)
+ {
+ $string .= '%' . strtoupper($bytes[$j]);
+ }
+ }
+
+ return $string;
+ }
+
+ /**
+ * Check if the object represents a valid IRI
+ *
+ * @access public
+ * @return bool
+ */
+ function is_valid()
+ {
+ return array_sum($this->valid) === count($this->valid);
+ }
+
+ /**
+ * Set the scheme. Returns true on success, false on failure (if there are
+ * any invalid characters).
+ *
+ * @access public
+ * @param string $scheme
+ * @return bool
+ */
+ function set_scheme($scheme)
+ {
+ if ($scheme === null || $scheme === '')
+ {
+ $this->scheme = null;
+ }
+ else
+ {
+ $len = strlen($scheme);
+ switch (true)
+ {
+ case $len > 1:
+ if (!strspn($scheme, 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+-.', 1))
+ {
+ $this->scheme = null;
+ $this->valid[__FUNCTION__] = false;
+ return false;
+ }
+
+ case $len > 0:
+ if (!strspn($scheme, 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz', 0, 1))
+ {
+ $this->scheme = null;
+ $this->valid[__FUNCTION__] = false;
+ return false;
+ }
+ }
+ $this->scheme = strtolower($scheme);
+ }
+ $this->valid[__FUNCTION__] = true;
+ return true;
+ }
+
+ /**
+ * Set the authority. Returns true on success, false on failure (if there are
+ * any invalid characters).
+ *
+ * @access public
+ * @param string $authority
+ * @return bool
+ */
+ function set_authority($authority)
+ {
+ if (($userinfo_end = strrpos($authority, '@')) !== false)
+ {
+ $userinfo = substr($authority, 0, $userinfo_end);
+ $authority = substr($authority, $userinfo_end + 1);
+ }
+ else
+ {
+ $userinfo = null;
+ }
+
+ if (($port_start = strpos($authority, ':')) !== false)
+ {
+ $port = substr($authority, $port_start + 1);
+ $authority = substr($authority, 0, $port_start);
+ }
+ else
+ {
+ $port = null;
+ }
+
+ return $this->set_userinfo($userinfo) && $this->set_host($authority) && $this->set_port($port);
+ }
+
+ /**
+ * Set the userinfo.
+ *
+ * @access public
+ * @param string $userinfo
+ * @return bool
+ */
+ function set_userinfo($userinfo)
+ {
+ if ($userinfo === null || $userinfo === '')
+ {
+ $this->userinfo = null;
+ }
+ else
+ {
+ $this->userinfo = $this->replace_invalid_with_pct_encoding($userinfo, 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789-._~!$&\'()*+,;=:');
+ }
+ $this->valid[__FUNCTION__] = true;
+ return true;
+ }
+
+ /**
+ * Set the host. Returns true on success, false on failure (if there are
+ * any invalid characters).