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<?php
/**
* Rapid tempalte class
*
* Rapid Template is a powerful and fast template engine. Template syntax very similar to phpBB Templates and is very simple.
* Rapid Template provides full separation of design from code.
* @package RapidTemplate
* @author Alek$ <aleks@aradmin.org>
*/
class Template
{
var $file = "";
var $rows = array();
var $vars = array();
var $compiled = "";
/**
* Set main template file
*
* Sets basic template file, which defines basic page layout.
* @param string $fname Template name without ".tpl" extension
* @return void
*/
function set_file($fname)
{
$file = "./template/$fname.tpl";
if(is_file($file) && is_readable($file))
{
$this->file = $file;
return;
}
die("<b>Fatal Error:</b> can't open template file /template/$fname.tpl.");
}
/**
* Defines array of first-level template variables
*
* Variables are passed to function as an array:
* array('VAR1' => $value1, 'VAR2' => $value2, ... )
* @param array $vars Array of vars
* @return void
*/
function set_vars($vars)
{
foreach($vars as $var => $val)
{
$this->vars["{{$var}}"] = $val;
}
//dbg($this->vars);
}
/**
* Defines loop variables
* @param string $row loop name. Nested loop names are separated by comma
* @param array $vars Array of vars
* @return void
*/
function set_row_vars($row, $vars)
{
$row_arr = explode('.',$row);
// [$row][$subrow1][$subrow2][#vars]
$c = &$this->rows;
$last = $row_arr[sizeof($row_arr)-1];
foreach($row_arr as $r)
{
if(!isset($c['#rows'][$r]) && $r != $last)
{
return false;
}
else if($r == $last)
{
$c['#rows'][$r][] = array(
'#vars' => array(),
'#rows' => array(),
);
}
$c = &$c['#rows'][$r][sizeof($c['#rows'][$r])-1];
//$c['#rows'] = $c['#vars'] = array();
}
foreach($vars as $var => $val)
{
$c['#vars']["{{$var}}"] = $val;
}
}
/**
* Load file
* @param void $file
*/
function load_file($file)
{
$c = file_get_contents($file);
$matches = array();
preg_match_all('#<!-- INCLUDE ([^>]+) -->#', $c, $matches, PREG_SET_ORDER);
$f = $r = array();
foreach($matches as $inc)
{
if(!is_file("./template/{$inc[1]}.tpl") || !is_readable("./template/{$inc[1]}.tpl"))
{
continue;
}
$f[] = $inc[0];
$r[] = $this->load_file("./template/{$inc[1]}.tpl");
}
$c = str_replace($f, $r, $c);
return $c;
}
/**
* Complie template
*/
function compile()
{
$c = $this->load_file($this->file);
$c = str_replace(array_keys($this->vars), array_values($this->vars), $c);
//dbg($this->rows);
$matches = array();
preg_match_all('#<!-- BEGIN ([a-zA-Z._]+) -->#', $c, $matches, PREG_SET_ORDER);
$indexes = array();
$loops = array();
$i = 0;
foreach($matches as $match)
{
$indexes[$match[1]] = "\$i_$i";
$rows = explode('.', $match[1]);
$loop = "<?php for({$indexes[$match[1]]} = 0; {$indexes[$match[1]]} < sizeof(\$this->rows['#rows']['$rows[0]']";
for($j = 1; $j < sizeof($rows); $j++)
{
$in = implode('.', array_slice($rows, 0, $j));
$loop .= "[{$indexes[$in]}]['#rows']['{$rows[$j]}']";
}
$loop .= "); {$indexes[$match[1]]}++){ ?>";
$loops[$match[0]] = $loop;
$i++;
}
$c = str_replace(array_keys($loops), array_values($loops), $c);
$c = str_replace('<!-- END -->', '<?php } ?>', $c);
$matches = array();
$vars = array();
preg_match_all('#{([A-Za-z_]+\.[A-Za-z_.]+)}#', $c, $matches, PREG_SET_ORDER);
foreach($matches as $match)
{
$rows = explode('.', $match[1]);
$var = "<?=(\$this->rows";
for($j = 0; $j < sizeof($rows)-1; $j++)
{
$in = implode('.', array_slice($rows, 0, $j+1));
$var .= "['#rows']['{$rows[$j]}'][{$indexes[$in]}]";
}
$var .= "['#vars']['{{$rows[$j]}}']) ?>";
$vars[$match[0]] = $var;
$i++;
}
$c = str_replace(array_keys($vars), array_values($vars), $c);
$this->compiled = '?>'.$c;
}
/**
* Compile and display template
* @return bool
*/
function display()
{
$this->compile();
eval($this->compiled);
//file_put_contents('./cache/' . md5($this->file) . '.tpl', $this->compiled);
//require('./cache/' . md5($this->file) . '.tpl');
}
}
$template = new Template();
?>
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