/**
* @param ViewElement $viewElement
* @param integer $arity
* @param array $arguments
*/
public function evaluate(ViewElementTag $viewElement, $arity, $arguments)
{
if ($arity != 3) {
throw new FunctionCallException('if', 'Expected 3 arguments, ' . $arity . ' received.', $viewElement->getCurrentFile()->getFilename(), $viewElement->getLineNumber());
}
return $arguments[0] ? $arguments[1] : $arguments[2];
}
/**
* Function's arguments:
* string to escape
*
* @param ViewElement $viewElement
* @param integer $arity
* @param array $arguments
*/
public function evaluate(ViewElementTag $viewElement, $arity, $arguments)
{
if ($arity != 1) {
throw new FunctionCallException('htmlentities', 'Expects exactly 1 argument.', $viewElement->getCurrentFile()->getFilename(), $viewElement->getLineNumber());
}
$string = $arguments[0];
return htmlentities($string);
}
/**
* Function's arguments:
* timestamp, format [, locale]
*
* @param ViewElement $viewElement
* @param integer $arity
* @param array $arguments
*/
public function evaluate(ViewElementTag $viewElement, $arity, $arguments)
{
if ($arity <= 1) {
throw new FunctionCallException('substr', 'Too few arguments.', $viewElement->getCurrentFile()->getFilename(), $viewElement->getLineNumber());
}
$string = $arguments[0];
$start = $arguments[1];
if (3 <= $arity) {
$length = $arguments[2];
return substr($string, $start, $length);
} else {
return substr($string, $start);
}
}
/**
* Returns the file containing the current
* expression to evaluate.
*
* @return File
*/
public function getViewFile()
{
return $this->viewElement->getCurrentFile();
}
