public function execute(Runtime $vm)
{
$text = preg_replace_callback("/__(@?[a-z][a-z0-9_]*?)__/i", function ($var) use($vm) {
if ($var[1][0] == '@') {
$var[1] = substr($var[1], 1);
$varValue = true;
}
$value = $vm->get($var[1]);
if (is_null($value)) {
/* variable is not found, we ignore it */
return $var[0];
}
$result = $vm->getValue($value);
if (!empty($varValue)) {
$result = var_export($result, true);
}
if (is_object($result) && is_callable(array($result, '__toString'))) {
$result = (string) $result;
}
if (!is_scalar($result)) {
throw new \RuntimeException("Only scalar values may be replaced. Use @ to get the string representation.");
}
return $result;
}, $this->args);
if ($this->isString()) {
return $vm->printIndented($text, $this);
}
return $vm->doPrint($text);
}
public function functionPrint(array $args, Runtime $vm)
{
return $vm->doPrint($args[0]);
}
