ASTemplate

<?PHP

/* ASTemplate: Advanced PHP template engine.
   Copyright (C) 2002 Adam Atlas
   
   This program is free software; you can redistribute it and/or
   modify it under the terms of the GNU General Public License
   as published by the Free Software Foundation; either version 2
   of the License, or (at your option) any later version.
   
   This program is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   GNU General Public License for more details.

   You should have received a copy of the GNU General Public License
   along with this program; if not, write to the Free Software
   Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
*/

$outputhtml = "";
$templateconsts = "";
$templatesearchpath = "";

function MunchASTemplate ($tempxml, $tempconsts, $searchpath) {
	global $outputhtml;
	global $templateconsts;
	global $templatesearchpath;
	
	$templateconsts = $tempconsts;
	$templatesearchpath = $searchpath;
	
	$parser = xml_parser_create();
	
	xml_set_element_handler($parser, "MTStartElement", "MTEndElement");
	xml_set_character_data_handler($parser, "MTCharacterData");
	xml_parse($parser, $tempxml);
	xml_parser_free($parser);
	
	return $outputhtml;
}

function file2string($filepath) {
	$filehandle = fopen($filepath, "r");
	$result = "";

	while ($data = fread($filehandle, 4096)) {
		$result .= $data;
	}
	
	fclose($filehandle);
	return $result;
}

function MTStartElement($parser_instance, $element_name, $attrs) {
	global $outputhtml;
	global $templateconsts;
	global $templatesearchpath;
	
	switch($element_name) {
		case "STATIC" :
			$filecontents = file2string($templatesearchpath . "/" . $attrs['SRC']);
			$keys = array_keys($templateconsts['static']);
			$values = array_values($templateconsts['static']);
			
			for ($a = 0; $a < count($templateconsts['static']); $a++) {
				$filecontents = str_replace("<!-- ASTemplateConst $".$keys[$a]." -->", $values[$a], $filecontents);
			}
			
			$outputhtml .= $filecontents;
			break;
			
		case "LOOP" :
			$filecontents = file2string($templatesearchpath . "/" . $attrs['SRC']);
			$statickeys = array_keys($templateconsts['static']);
			$staticvalues = array_values($templateconsts['static']);
			
			
			for ($a = 0; $a < count($templateconsts['static']); $a++) {
				$filecontents = str_replace("<!-- ASTemplateConst $".$statickeys[$a]." -->", $staticvalues[$a], $filecontents);
			}
			
			$baseforloop = $filecontents;
			
			$loopconsts = $templateconsts['loops'][$attrs['VALCONST']];
			
			for ($e = 0; $e < count($loopconsts); $e++) {
				$baseforloop = $filecontents;
				$currentconstants = $loopconsts[$e];
				$currentloopkeys = array_keys($currentconstants);
				$currentloopvalues = array_values($currentconstants);
				for ($i = 0; $i < count($currentconstants); $i++) {
					$baseforloop = str_replace("<!-- ASTemplateLoopItem $".$currentloopkeys[$i]." -->", $currentloopvalues[$i], $baseforloop);
				}
				$outputhtml .= $baseforloop;
			}
			
			break;
			
		case "ASTEMPLATE" :
			break;
	}
}

function MTCharacterData($parser_instance, $xml_data) {
	// Do nothing!
}

function MTEndElement($parser_instance, $element_name) {
	// Actually, we don't need to do anything here either.
}

/*

$tempconsts:
    $static:
        Array of global static constants, in the form of key -> value.
    $loops:
        $loopname:
            Array of arrays of constants that will be enumerated for loops using $loopname.
        $foo:
            More, blah blah...

*/
?>