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<?php
class FunctionCallTemplateSyntaxElement extends AbstractTemplateSyntaxElement
{
private $ended = false;
private $begin_pos;
public function parse(TemplateSyntaxParserContext $context, StringInputStream $input, StringOutputStream $output)
{
$this->register($context, $input, $output);
$this->begin_pos = $input->tell();
$this->do_parse();
}
private function do_parse()
{
$this->process_expression_start();
$this->process_expression_content();
$this->process_expression_end();
if (!$this->ended)
{
$this->missing_expression_end();
}
}
private function process_expression_start()
{
$this->input->consume_next('\{');
$this->output->write('\';');
}
private function process_expression_end()
{
$this->ended = $this->input->next() == '}';
$this->output->write(';' . TemplateSyntaxElement::RESULT . '=\'');
}
private function process_expression_content()
{
try
{
$this->parse_elt(new FunctionTemplateSyntaxElement());
}
catch (InvalidTemplateFunctionCallException $ex)
{
$encountered = $this->encountered();
throw new TemplateRenderingException('Invalid function call, expecting #{aFunction()} but was ' . $encountered, $this->input);
}
}
private function missing_expression_end()
{
throw new TemplateRenderingException('Missing function call expression end \'}\'', $this->input);
}
private function encountered()
{
$this->input->consume_next('.*\}', 'U');
$end_pos = $this->input->tell();
$length = $end_pos - $this->begin_pos;
return $this->input->to_string(-$length, $length + 1);
}
}
?>