protected function compileString(Twig_NodeList $body)
{
$msg = '';
$vars = array();
foreach ($body->getNodes() as $i => $node) {
if ($node instanceof Twig_Node_Text) {
$msg .= $node->getData();
} elseif ($node instanceof Twig_Node_Print && $node->getExpression() instanceof Twig_Node_Expression_Name) {
$msg .= sprintf('%%%s%%', $node->getExpression()->getName());
$vars[] = $node->getExpression();
} else {
throw new Twig_SyntaxError(sprintf('The text to be translated with "trans" can only contain references to simple variable'), $this->lineno);
}
}
return array(trim($msg), $vars);
}
public function subparse($test, $drop_needle = false)
{
$lineno = $this->stream->current->lineno;
$rv = array();
while (!$this->stream->eof) {
switch ($this->stream->current->type) {
case Twig_Token::TEXT_TYPE:
$token = $this->stream->next();
$rv[] = new Twig_Text($token->value, $token->lineno);
break;
case Twig_Token::VAR_START_TYPE:
$token = $this->stream->next();
$expr = $this->parseExpression();
$this->stream->expect(Twig_Token::VAR_END_TYPE);
$rv[] = new Twig_Print($expr, $token->lineno);
break;
case Twig_Token::BLOCK_START_TYPE:
$this->stream->next();
$token = $this->stream->current;
if ($token->type !== Twig_Token::NAME_TYPE) {
throw new Twig_SyntaxError('expected directive', $token->lineno);
}
if (!is_null($test) && call_user_func($test, $token)) {
if ($drop_needle) {
$this->stream->next();
}
return Twig_NodeList::fromArray($rv, $lineno);
}
if (!isset($this->handlers[$token->value])) {
throw new Twig_SyntaxError('unknown directive', $token->lineno);
}
$this->stream->next();
$node = call_user_func($this->handlers[$token->value], $token);
if (!is_null($node)) {
$rv[] = $node;
}
break;
default:
assert(false, 'Lexer or parser ended up in ' . 'unsupported state.');
}
}
return Twig_NodeList::fromArray($rv, $lineno);
}
