989     // If-else-end

   990     $keywords = array('BEGIN', 'BEGINNOT', 'IFSET', 'IFPLUGIN');

   990     $text = preg_replace('/<!-- BEGIN ([A-z0-9_-]+?) -->(.*?)<!-- BEGINELSE \\1 -->(.*?)<!-- END \\1 -->/is', '\'; if ( $this->tpl_bool[\'\\1\'] ) { echo \'\\2\'; } else { echo \'\\3\'; } echo \'', $text);

   991     $code = $plugins->setHook('template_compile_logic_keyword');

   991     

   992     foreach ( $code as $cmd )

   992     // If-end

   993     {

   993     $text = preg_replace('/<!-- BEGIN ([A-z0-9_-]+?) -->(.*?)<!-- END \\1 -->/is', '\'; if ( $this->tpl_bool[\'\\1\'] ) { echo \'\\2\'; } echo \'', $text);

   994       eval($cmd);

   994     

   995     }

   995     // If not-else-end

   996     

   996     $text = preg_replace('/<!-- BEGINNOT ([A-z0-9_-]+?) -->(.*?)<!-- BEGINELSE \\1 -->(.*?)<!-- END \\1 -->/is', '\'; if ( !$this->tpl_bool[\'\\1\'] ) { echo \'\\2\'; } else { echo \'\\3\'; } echo \'', $text);

   997     $keywords = implode('|', $keywords);

   997     

   998     

   998     // If not-end

   999     // Matches

   999     $text = preg_replace('/<!-- BEGINNOT ([A-z0-9_-]+?) -->(.*?)<!-- END \\1 -->/is', '\'; if ( !$this->tpl_bool[\'\\1\'] ) { echo \'\\2\'; } echo \'', $text);

  1000     //          1     2                               3                 4   56                       7     8

  1000     

  1001     $regexp = '/(<!-- ('. $keywords .') ([A-z0-9_-]+) -->)(.*)((<!-- BEGINELSE \\3 -->)(.*))?(<!-- END \\3 -->)/isU';

  1001     // If set-else-end

  1002     

  1002     $text = preg_replace('/<!-- IFSET ([A-z0-9_-]+?) -->(.*?)<!-- BEGINELSE \\1 -->(.*?)<!-- END \\1 -->/is', '\'; if ( isset($this->tpl_strings[\'\\1\']) ) { echo \'\\2\'; } else { echo \'\\3\'; } echo \'', $text);

  1003     /*

  1003     

  1004     The way this works is: match all blocks using the standard form with a different keyword in the block each time,

  1004     // If set-end

  1005     and replace them with appropriate PHP logic. Plugin-extensible now. :-)

  1005     $text = preg_replace('/<!-- IFSET ([A-z0-9_-]+?) -->(.*?)<!-- END \\1 -->/is', '\'; if ( isset($this->tpl_strings[\'\\1\']) ) { echo \'\\2\'; } echo \'', $text);

  1006     

  1006     

  1007     The while-loop is to bypass what is apparently a PCRE bug. It's hackish but it works. Properly written plugins should only need

  1007     // If plugin loaded-else-end

  1008     to compile templates (using this method) once for each time the template file is changed.

  1008     $text = preg_replace('/<!-- IFPLUGIN ([A-z0-9_\.-]+?) -->(.*?)<!-- BEGINELSE \\1 -->(.*?)<!-- END \\1 -->/is', '\'; if ( getConfig(\'plugin_\\1\') == \'1\' ) { echo \'\\2\'; } else { echo \'\\3\'; } echo \'', $text);

  1009     */

  1009     

  1010     while ( preg_match($regexp, $text) )

  1010     // If plugin loaded-end

  1011     {

  1011     $text = preg_replace('/<!-- IFPLUGIN ([A-z0-9_\.-]+?) -->(.*?)<!-- END \\1 -->/is', '\'; if ( getConfig(\'plugin_\\1\') == \'1\' ) { echo \'\\2\'; } echo \'', $text);

  1012       preg_match_all($regexp, $text, $matches);

  1013       for ( $i = 0; $i < count($matches[0]); $i++ )

  1014       {

  1015         $start_tag =& $matches[1][$i];

  1016         $type =& $matches[2][$i];

  1017         $test =& $matches[3][$i];

  1018         $particle_true  =& $matches[4][$i];

  1019         $else_tag =& $matches[6][$i];

  1020         $particle_else =& $matches[7][$i];

  1021         $end_tag =& $matches[8][$i];

  1022         

  1023         switch($type)

  1024         {

  1025           case 'BEGIN':

  1026             $cond = "isset(\$this->tpl_bool['$test']) && \$this->tpl_bool['$test']";

  1027             break;

  1028           case 'BEGINNOT':

  1029             $cond = "!isset(\$this->tpl_bool['$test']) || ( isset(\$this->tpl_bool['$test']) && !\$this->tpl_bool['$test'] )";

  1030             break;

  1031           case 'IFPLUGIN':

  1032             $cond = "getConfig('plugin_$test') == '1'";

  1033             break;

  1034           case 'IFSET':

  1035             $cond = "isset(\$this->tpl_strings['$test'])";

  1036             break;

  1037           default:

  1038             $code = $plugins->setHook('template_compile_logic_cond');

  1039             foreach ( $code as $cmd )

  1040             {

  1041               eval($cmd);

  1042             }

  1043             break;

  1044         }

  1045         

  1046         if ( !isset($cond) || ( isset($cond) && !is_string($cond) ) )

  1047           continue;

  1048         

  1049         $tag_complete = <<<TPLCODE

  1050         ';

  1051         /* START OF CONDITION: $type ($test) */

  1052         if ( $cond )

  1053         {

  1054           echo '$particle_true';

  1055         /* ELSE OF CONDITION: $type ($test) */

  1056         }

  1057         else

  1058         {

  1059           echo '$particle_else';

  1060         /* END OF CONDITION: $type ($test) */

  1061         }

  1062         echo '

  1063 TPLCODE;

  1064         

  1065         $text = str_replace_once($matches[0][$i], $tag_complete, $text);

  1066         

  1067       }

  1068     }

  1069     

  1070     // For debugging ;-)

  1071     // die("<pre>&lt;?php\n" . htmlspecialchars($text."\n\n".print_r($matches,true)) . "\n\n?&gt;</pre>");