/**
Handles filter chains. Wraps given code, and returns new one.
@param[in] $node Filter chain source node
@param[in] $filterExpr Filter chain expression (e.g. a|b|c:d)
@param[in] $code Code to wrap in filters
@return New code that uses filters
*/
public function parseFilterChain(TemplateNodeEx $node, $filterExpr, $code)
{
$filterChain = TemplateUtils::splitEscaped('|', $filterExpr);
$resultCode = $code;
// Hook-point: parseFilterChain:entry
$this->runHooks('parseFilterChain:entry', array(&$filterChain));
//
foreach ($filterChain as &$filter) {
list($name, $args) = TemplateUtils::split(':', $filter);
if ($args) {
$args = TemplateUtils::splitEscaped(',', $args);
} else {
$args = array();
}
foreach ($args as &$arg) {
if (mb_substr($arg, 0, 1) == '"') {
$arg = array('string', '\'' . TemplateUtils::escape(mb_substr($arg, 1, -1)) . '\'');
} elseif (preg_match('~^\\-?[0-9]+(?:\\.[0-9]+)?$~', $arg)) {
$arg = array('number', $arg);
} else {
list($code, ) = $this->parseVariableExpression($node, $arg);
$arg = array('variable', '@' . $code);
}
}
$filterInfo = $this->commonVerifyElement($node, 'filter', $name, $args);
$filterCode = call_user_func_array($filterInfo['handler'], array($this, $node, &$name, &$args));
$resultCode = sprintf($filterCode, $resultCode);
}
return $resultCode;
}
/**
Tests the behaviour of @ref TemplateUtils::splitEscaped.
@dataProvider providerUtilsSplitEscaped
*/
public function testUtilsSplitEscaped($delimiter, $string, $expected)
{
$this->assertEquals($expected, TemplateUtils::splitEscaped($delimiter, $string));
}
