/**
* Process handlebars section style
*
* @param Context $context current context
* @param array $current section node data
*
* @return mixed|string
*/
private function _handlebarsStyleSection(Context $context, $current)
{
$helpers = $this->handlebars->getHelpers();
$sectionName = $current[Tokenizer::NAME];
if (isset($current[Tokenizer::END])) {
$source = substr($this->getSource(), $current[Tokenizer::INDEX], $current[Tokenizer::END] - $current[Tokenizer::INDEX]);
} else {
$source = '';
}
// subexpression parsing loop
// will contain all subexpressions
// inside outermost brackets
$subexprs = array();
$insideOf = array('single' => false, 'double' => false);
$lvl = 0;
$cur_start = 0;
for ($i = 0; $i < strlen($current[Tokenizer::ARGS]); $i++) {
$cur = substr($current[Tokenizer::ARGS], $i, 1);
if ($cur == "'") {
$insideOf['single'] = !$insideOf['single'];
}
if ($cur == '"') {
$insideOf['double'] = !$insideOf['double'];
}
if ($cur == '(' && !$insideOf['single'] && !$insideOf['double']) {
if ($lvl == 0) {
$cur_start = $i + 1;
}
$lvl++;
continue;
}
if ($cur == ')' && !$insideOf['single'] && !$insideOf['double']) {
$lvl--;
if ($lvl == 0) {
$subexprs[] = substr($current[Tokenizer::ARGS], $cur_start, $i - $cur_start);
}
}
}
if (!empty($subexprs)) {
foreach ($subexprs as $expr) {
$cmd = explode(" ", $expr);
$name = trim($cmd[0]);
// construct artificial section node
$section_node = array(Tokenizer::TYPE => Tokenizer::T_ESCAPED, Tokenizer::NAME => $name, Tokenizer::OTAG => $current[Tokenizer::OTAG], Tokenizer::CTAG => $current[Tokenizer::CTAG], Tokenizer::INDEX => $current[Tokenizer::INDEX], Tokenizer::ARGS => implode(" ", array_slice($cmd, 1)));
// resolve the node recursively
$resolved = $this->_handlebarsStyleSection($context, $section_node);
$resolved = addcslashes($resolved, '"');
// replace original subexpression with result
$current[Tokenizer::ARGS] = str_replace('(' . $expr . ')', '"' . $resolved . '"', $current[Tokenizer::ARGS]);
}
}
$return = $helpers->call($sectionName, $this, $context, $current[Tokenizer::ARGS], $source);
if ($return instanceof StringWrapper) {
return $this->handlebars->loadString($return)->render($context);
} else {
return $return;
}
}
