File Source for go_template_parser.class.inc.php

<?php
/**
* Copyright Intermesh
*
* This file is part of Group-Office. You should have received a copy of the
* Group-Office license along with Group-Office. See the file /LICENSE.TXT
*
* If you have questions write an e-mail to info@intermesh.nl
*
* @copyright Copyright Intermesh
* @version $Id: go_template_parser.class.inc.php 1229 2008-10-25 13:13:38Z mschering $
* @author Merijn Schering <mschering@intermesh.nl>
*/
/**
* Parses a template
*
* @author Merijn Schering <mschering@intermesh.nl>
* @version $Id: go_template_parser.class.inc.php 1229 2008-10-25 13:13:38Z mschering $
* @copyright Copyright Intermesh
* @license AGPL Affero General Public License
* @package go.utils
* @uses db
* @since Group-Office 3.0
*/
class go_template_parser
{
var $open_tag_symbol = '<';
var $close_tag_symbol = '>';
var $tags = array('gotpl');
var $fields;
public function __construct($fields, $values)
{
$this->fields=$fields;
$this->values=$values;
}
private function get_tag($tag, $content) {
$start_pos = strpos($content, $this->open_tag_symbol.$tag);
if ($start_pos !== false) {
$end_pos = $this->get_end_pos($tag, $content, $start_pos);
$sub_start_pos = strpos($content, $this->open_tag_symbol.$tag, $start_pos+strlen($this->open_tag_symbol.$tag));
if($sub_start_pos!== false)
{
$sub_end_pos = $end_pos;
//echo $sub_start_pos.' < '.$sub_end_pos."\n---\n";
while($sub_start_pos<$sub_end_pos)
{
$sub_end_pos = $this->get_end_pos($tag, $content, $sub_end_pos);
$sub_start_pos = strpos($content, $this->open_tag_symbol.$tag, $sub_start_pos+strlen($this->open_tag_symbol.$tag));
if($sub_end_pos)
$end_pos = $sub_end_pos;
}
}
if($end_pos === false)
{
return false;
}
$tag_length = $end_pos-$start_pos;
return substr($content, $start_pos, $tag_length);
}
return false;
}
private function get_end_pos($tag, $content, $offset=0)
{
$end_pos = strpos($content, $this->open_tag_symbol.'/'.$tag.$this->close_tag_symbol, $offset);
if($end_pos!==false)
{
$end_pos+=strlen($this->open_tag_symbol.'/'.$tag.$this->close_tag_symbol);
}
return $end_pos;
}
private function get_attributes($tag) {
$attributes = array ();
$in_value = false;
$in_name = false;
$name = '';
$value = '';
$length = strlen($tag);
$exit=false;
for ($i = 0; $i < $length; $i ++) {
if($exit)
{
break;
}
$char = $tag[$i];
switch ($char) {
case '"' :
if ($in_value) {
$in_value = false;
$attributes[trim($name)] = trim($value);
$name = '';
$value = '';
} else {
$in_value = true;
}
break;
case ' ' :
if (!$in_value) {
$in_name = true;
} else {
$value .= $char;
}
break;
case '=' :
$in_name = false;
if ($in_value) {
$value .= $char;
}
break;
default :
if ($in_name) {
$name .= $char;
}
if ($in_value) {
$value .= $char;
}
break;
}
}
return $attributes;
}
private function replace_template(&$content)
{
foreach($this->fields as $field)
{
$value = isset($this->values[$field]) ? $this->values[$field] : '';
$content = str_replace('{'.$field.'}', $value, $content);
}
}
public function parse(&$content)
{
$this->parse_tags($content);
$this->replace_template($content);
}
private function parse_tags(&$content)
{
foreach($this->values as $varname=>$value)
{
$$varname = $value;
}
foreach($this->tags as $tagname)
{
while ($tag = $this->get_tag($tagname, $content)) {
$attributes = $this->get_attributes($tag);
$print = false;
//echo '$print = '.$attributes['if'].';'."\n\n";
//eval('$print = '.html_entity_decode($attributes['if']).';');
$print = !empty($$attributes['if']);
//var_dump($print);
if($print)
{
$start_pos = strpos($tag, $this->close_tag_symbol);
$tagcontent = substr($tag, $start_pos+strlen($this->close_tag_symbol));
$tagcontent = substr($tagcontent,0, strlen($tagcontent)-strlen($this->open_tag_symbol.'/'.$tagname.$this->close_tag_symbol));
$this->parse_tags($tagcontent, $conditions);
}else
{
$tagcontent = '';
}
// echo $tagcontent;
//echo "\n\n########\n\n";
$content = str_replace($tag, $tagcontent, $content);
}
}
}
}
?>

Source for file go_template_parser.class.inc.php