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<?php
class TextTemplateSyntaxElement extends AbstractTemplateSyntaxElement
{
private $ended = false;
private $escaped = false;
public function parse(TemplateSyntaxParserContext $context, StringInputStream $input, StringOutputStream $output)
{
$this->register($context, $input, $output);
$this->do_parse();
}
private function do_parse()
{
while ($this->input->has_next() && !$this->ended)
{
$current = $this->input->next();
if (!$this->escaped)
{
$this->process_char($current);
}
else
{
$this->process_escaped_char($current);
}
}
}
private function process_char($char)
{
if ($char == '\\' && $this->input->assert_next('[\\{}$#]'))
{
$this->escaped = true;
}
else
{
$element = $this->parse_text($char);
if ($element != null)
{
$this->parse_elt($element);
}
elseif (!$this->ended)
{
$this->write($char);
}
}
}
private function process_escaped_char($char)
{
if (!in_array($char, array('\\', '{', '}', '#', '$')))
{
$this->write('\\');
}
$this->escaped = false;
$this->write($char);
}
private function write($char)
{
$this->output->write(addcslashes($char, '\\\''));
}
private function parse_text($current)
{
if ($current == '{' && $this->input->assert_next('(?:@(?:H\|)?)?(?:\w+\.)*\w+\}'))
{
return new VariableExpressionTemplateSyntaxElement();
}
elseif ($current == '$' && $this->input->assert_next('\{'))
{
return new ExpressionTemplateSyntaxElement();
}
elseif ($current == '#' && $this->input->assert_next('\{'))
{
return new FunctionCallTemplateSyntaxElement();
}
elseif ($current == '#' && $this->input->assert_next('[\s]'))
{
return $this->build_statement_elt();
}
elseif ($current == '<' && $this->input->assert_next('\?php'))
{
return new PHPTemplateSyntaxElement();
}
return null;
}
private function build_statement_elt()
{
$this->input->move(-1);
if (ConditionTemplateSyntaxElement::is_element($this->input))
{
return new ConditionTemplateSyntaxElement();
}
elseif (LoopTemplateSyntaxElement::is_element($this->input))
{
return new LoopTemplateSyntaxElement();
}
elseif (IncludeTemplateSyntaxElement::is_element($this->input))
{
return new IncludeTemplateSyntaxElement();
}
else
{
$this->ended = true;
return null;
}
}
}
?>