/**
* Analyses a template file content (string) and extracts the blocks
*
* @param string $tpl the template in which to look for blocks
* @return void
* @see self::$blocks
*/
protected function searchBlocks($tpl)
{
$r = array();
$blockStarts = array();
$blockEnds = array();
preg_match_all('#{block([[:blank:]]*)name=(' . tpltools::$varreg . '+)(.*)}#U', $tpl, $r, PREG_OFFSET_CAPTURE);
foreach ($r[0] as $k => $match) {
$p = tpltools::readParams($match[0]);
$blockStarts[] = array($match[1], strlen($match[0]), $p['params']);
}
preg_match_all('#{/block}#', $tpl, $r, PREG_OFFSET_CAPTURE);
foreach ($r[0] as $match) {
$blockEnds[] = $match[1];
}
$s = sizeof($blockStarts);
for ($i = 0; $i < $s; $i++) {
for ($j = $i + 1; $j < $s; $j++) {
if ($blockStarts[$j][0] < $blockEnds[$i]) {
$tmp = $blockEnds[$j];
$blockEnds[$j] = $blockEnds[$i];
$blockEnds[$i] = $tmp;
}
}
}
foreach ($blockStarts as $k => $b) {
$this->blocks[$b[2]['name']][] = array('content' => substr($tpl, $b[0] + $b[1], $blockEnds[$k] - $b[0] - $b[1]), 'command' => substr($tpl, $b[0], $b[1]), 'params' => $b[2]);
}
}
/**
* Prepares the exportation of the assigned variables
*
* @return array
*/
protected function exportVars()
{
$vars = [];
foreach ($this->vars as $name => $var) {
if (empty($var['_parse_'])) {
$vars[$name] = $var['_value_'];
} else {
$vars[$name] = tpltools::getVar($var);
}
}
return $vars;
}
/**
* Gets a variable, parses it if necessary, and returns it
*
* @param string $var the variable to process
* @param string $modifiers the modifiers to apply to the variable
* @param string $returnMethod the return method to use (echo|return)
* @return mixed a string if returnMethod=='echo', void else
* @see self::modifier()
*/
public static function getVar($var, $modifiers = '', $returnMethod = 'return')
{
$parse = isset($var['_parse_']) && $var['_parse_'];
$var = is_array($var) && array_key_exists('_value_', $var) ? $var['_value_'] : $var;
$modifiers = explode('|', $modifiers);
foreach ($modifiers as $modifier) {
$t = explode(':', $modifier);
$var = tpltools::modifier($var, $t[0], isset($t[1]) ? $t[1] : '');
}
if (is_string($var) && $parse) {
$var = eval('?>' . tpltools::analyseAndTransform($var));
}
if ($returnMethod == 'echo') {
echo $var;
} elseif ($returnMethod == 'return') {
return $var;
}
}
