/**
* An utility method that cleans the contents of the section node, by
* moving the alternative section (opt:sectionelse etc. tags) code to the end
* of the children list.
*
* In the parameters, we must specify the name and the namespace of the
* tags that will be treated as the alternative content tags.
*
* @param Opt_Xml_Element $node The section node
* @param String $ns The namespace
* @param String $name The alternative section content tag name
*/
protected function _sortSectionContents(Opt_Xml_Element $node, $ns, $name)
{
$else = $node->getElementsByTagNameNS($ns, $name, false);
if (sizeof($else) == 1) {
if (!$node->hasAttributes()) {
throw new Opt_InstructionTooManyItems_Exception($ns . ':' . $name, $node->getXmlName(), 'Zero');
}
$node->bringToEnd($else[0]);
} elseif (sizeof($else) > 1) {
throw new Opt_InstructionTooManyItems_Exception($ns . ':' . $name, $node->getXmlName(), 'Zero or one');
}
}
