TYPO3_6-2/_parse_h_t_m_l_8php_source.html

 <?php

 class Auth_Yadis_ParseHTML {

     var $_re_flags = "si";

     var $_removed_re =
            "<!--.*?-->|<!\[CDATA\[.*?\]\]>|<script\b(?!:)[^>]*>.*?<\/script>";

     var $_tag_expr = "<%s%s(?:\s.*?)?%s>";

     var $_attr_find = '\b([-\w]+)=(".*?"|\'.*?\'|.+?)[\/\s>]';

     function Auth_Yadis_ParseHTML()
     {
         $this->_attr_find = sprintf("/%s/%s",
                                     $this->_attr_find,
                                     $this->_re_flags);

         $this->_removed_re = sprintf("/%s/%s",
                                      $this->_removed_re,
                                      $this->_re_flags);

         $this->_entity_replacements = array(
                                             'amp' => '&',
                                             'lt' => '<',
                                             'gt' => '>',
                                             'quot' => '"'
                                             );

         $this->_ent_replace =
             sprintf("&(%s);", implode("|",
                                       $this->_entity_replacements));
     }

     function removeQuotes($str)
     {
         $matches = array();
         $double = '/^"(.*)"$/';
         $single = "/^\'(.*)\'$/";

         if (preg_match($double, $str, $matches)) {
             return $matches[1];
         } else if (preg_match($single, $str, $matches)) {
             return $matches[1];
         } else {
             return $str;
         }
     }

     function tagPattern($tag_names, $close, $self_close)
     {
         if (is_array($tag_names)) {
             $tag_names = '(?:'.implode('|',$tag_names).')';
         }
         if ($close) {
             $close = '\/' . (($close == 1)? '' : '?');
         } else {
             $close = '';
         }
         if ($self_close) {
             $self_close = '(?:\/\s*)' . (($self_close == 1)? '' : '?');
         } else {
             $self_close = '';
         }
         $expr = sprintf($this->_tag_expr, $close, $tag_names, $self_close);

         return sprintf("/%s/%s", $expr, $this->_re_flags);
     }

     function getMetaTags($html_string)
     {
         $html_string = preg_replace($this->_removed_re,
                                     "",
                                     $html_string);

         $key_tags = array($this->tagPattern('html', false, false),
                           $this->tagPattern('head', false, false),
                           $this->tagPattern('head', true, false),
                           $this->tagPattern('html', true, false),
                           $this->tagPattern(array(
                           'body', 'frameset', 'frame', 'p', 'div',
                           'table','span','a'), 'maybe', 'maybe'));
         $key_tags_pos = array();
         foreach ($key_tags as $pat) {
             $matches = array();
             preg_match($pat, $html_string, $matches, PREG_OFFSET_CAPTURE);
             if($matches) {
                 $key_tags_pos[] = $matches[0][1];
             } else {
                 $key_tags_pos[] = null;
             }
         }
         // no opening head tag
         if (is_null($key_tags_pos[1])) {
             return array();
         }
         // the effective </head> is the min of the following
         if (is_null($key_tags_pos[2])) {
             $key_tags_pos[2] = strlen($html_string);
         }
         foreach (array($key_tags_pos[3], $key_tags_pos[4]) as $pos) {
             if (!is_null($pos) && $pos < $key_tags_pos[2]) {
                 $key_tags_pos[2] = $pos;
             }
         }
         // closing head tag comes before opening head tag
         if ($key_tags_pos[1] > $key_tags_pos[2]) {
             return array();
         }
         // if there is an opening html tag, make sure the opening head tag
         // comes after it
         if (!is_null($key_tags_pos[0]) && $key_tags_pos[1] < $key_tags_pos[0]) {
             return array();
         }
         $html_string = substr($html_string, $key_tags_pos[1],
                               ($key_tags_pos[2]-$key_tags_pos[1]));

         $link_data = array();
         $link_matches = array();

         if (!preg_match_all($this->tagPattern('meta', false, 'maybe'),
                             $html_string, $link_matches)) {
             return array();
         }

         foreach ($link_matches[0] as $link) {
             $attr_matches = array();
             preg_match_all($this->_attr_find, $link, $attr_matches);
             $link_attrs = array();
             foreach ($attr_matches[0] as $index => $full_match) {
                 $name = $attr_matches[1][$index];
                 $value = html_entity_decode(
                               $this->removeQuotes($attr_matches[2][$index]));

                 $link_attrs[strtolower($name)] = $value;
             }
             $link_data[] = $link_attrs;
         }

         return $link_data;
     }

     function getHTTPEquiv($html_string)
     {
         $meta_tags = $this->getMetaTags($html_string);

         if ($meta_tags) {
             foreach ($meta_tags as $tag) {
                 if (array_key_exists('http-equiv', $tag) &&
                     (in_array(strtolower($tag['http-equiv']),
                               array('x-xrds-location', 'x-yadis-location'))) &&
                     array_key_exists('content', $tag)) {
                     return $tag['content'];
                 }
             }
         }

         return null;
     }
 }

Auth_Yadis_ParseHTML\getHTTPEquiv
getHTTPEquiv($html_string)
Definition: ParseHTML.php:217

Auth_Yadis_ParseHTML\$_attr_find
$_attr_find
Definition: ParseHTML.php:44

Auth_Yadis_ParseHTML\$_removed_re
$_removed_re
Definition: ParseHTML.php:33

Auth_Yadis_ParseHTML\removeQuotes
removeQuotes($str)
Definition: ParseHTML.php:77

Auth_Yadis_ParseHTML\tagPattern
tagPattern($tag_names, $close, $self_close)
Definition: ParseHTML.php:103

Auth_Yadis_ParseHTML
Definition: ParseHTML.php:23

Auth_Yadis_ParseHTML\getMetaTags
getMetaTags($html_string)
Definition: ParseHTML.php:134

Auth_Yadis_ParseHTML\$_re_flags
$_re_flags
Definition: ParseHTML.php:28

Auth_Yadis_ParseHTML\$_tag_expr
$_tag_expr
Definition: ParseHTML.php:39

Auth_Yadis_ParseHTML\Auth_Yadis_ParseHTML
Auth_Yadis_ParseHTML()
Definition: ParseHTML.php:46