/**
* 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');
}
}
/**
* The internal magic shared by the selector elements. Locates the node elements
* and constructs the switch() statement for them.
* @internal
* @param Opt_Xml_Element $node The found element
* @param array $section The reference to the section data.
* @param string $type The name of the selection item.
* @throws Opt_InstructionTooManyItems_Exception
*/
private function _internalMagic($node, &$section, $type)
{
$section['format']->assign('item', !$type ? $section['test'] : 'item');
// Check, if there are no instruction tags in the children list.
$instructions = array();
$cases = array();
$alternative = null;
foreach ($node as $subnode) {
if ($subnode instanceof Opt_Xml_Element && $this->_compiler->isNamespace($subnode->getNamespace())) {
if ($this->_compiler->isInstruction($subnode->getXmlName()) || $subnode->getXmlName() == 'opt:separator') {
if ($subnode != 'opt:selectorelse') {
$instructions[] = $subnode;
} else {
if (!is_null($alternative)) {
throw new Opt_InstructionTooManyItems_Exception('opt:selectorelse', $node->getXmlName(), 'Zero or one');
}
$alternative = $subnode;
}
} else {
$cases[] = $subnode;
}
} else {
$node->removeChild($subnode);
}
}
if (sizeof($instructions) > 0) {
// There are instructions in opt:selector. We have to move the
// cases to a fake node in order to sanitize them.
$node->removeChildren();
foreach ($instructions as $instruction) {
$node->appendChild($instruction);
}
$fake = new Opt_Xml_Element('opt:_');
foreach ($cases as $case) {
$fake->appendChild($case);
}
$fake->set('processAll', true);
$fake->set('hidden', false);
$node->appendChild($fake);
if (!is_null($alternative)) {
$node->appendChild($alternative);
}
} else {
$fake = $node;
}
$fake->addAfter(Opt_Xml_Buffer::TAG_CONTENT_BEFORE, 'switch(' . $section['format']->get('section:variable') . '){');
// If opt:selectorelse is used, the ending curly bracket is created by
// _processSelectorelse().
if (is_null($alternative)) {
$fake->addBefore(Opt_Xml_Buffer::TAG_CONTENT_AFTER, ' } ');
}
foreach ($cases as $case) {
if ($case->getXmlName() == 'opt:separator') {
Opl_Debug::write('Print shit');
}
if ($case->getName() == 'default') {
$case->addAfter(Opt_Xml_Buffer::TAG_CONTENT_BEFORE, ' default: ');
} else {
$case->addAfter(Opt_Xml_Buffer::TAG_CONTENT_BEFORE, ' case \'' . $case->getName() . '\': ');
}
$case->addBefore(Opt_Xml_Buffer::TAG_CONTENT_AFTER, ' break; ');
$case->set('processAll', true);
$case->set('hidden', false);
}
}
/**
* Tries to extract a single attribute, using the specified value type.
*
* @final
* @internal
* @param Opt_Xml_Element $item The scanned XML element.
* @param Opt_Xml_Attribute $attr The parsed attribute
* @param Int $type The requested value type.
* @return Mixed The extracted attribute value
*/
private final function _extractAttribute(Opt_Xml_Element $item, Opt_Xml_Attribute $attr, $type, $exprType = null)
{
$value = (string) $attr;
switch ($type) {
// An identifier, but with empty values allowed.
case self::ID_EMP:
if ($value == '') {
return $value;
}
// An identifier
// An identifier
case self::ID:
if (!preg_match('/^[a-zA-Z0-9\\_\\.]+$/', $value)) {
throw new Opt_InvalidAttributeType_Exception($attr->getXmlName(), $item->getXmlName(), 'identifier');
}
return $value;
// A number
// A number
case self::NUMBER:
if (!preg_match('/^\\-?([0-9]+\\.?[0-9]*)|(0[xX][0-9a-fA-F]+)$/', $value)) {
throw new Opt_InvalidAttributeType_Exception($attr->getXmlName(), $item->getXmlName(), 'number');
}
return $value;
// Boolean value: "yes" or "no"
// Boolean value: "yes" or "no"
case self::BOOL:
if ($value != 'yes' && $value != 'no') {
throw new Opt_InvalidAttributeType_Exception($attr->getXmlName(), $item->getXmlName(), '"yes" or "no"');
}
return $value == 'yes';
// A string packed into PHP expression. Can be switched to EXPRESSION.
// A string packed into PHP expression. Can be switched to EXPRESSION.
case self::STRING:
return $value;
break;
// An OPT expression.
// An OPT expression.
case self::EXPRESSION:
case self::ASSIGN_EXPR:
if (strlen(trim($value)) == 0) {
throw new Opt_AttributeEmpty_Exception($attr->getXmlName(), $item->getXmlName());
}
if (preg_match('/^([a-zA-Z0-9\\_]{2,})\\:([^\\:].*)$/', $value, $found)) {
$result = $this->_compiler->parseExpression($found[2], $found[1]);
} else {
$result = $this->_compiler->parseExpression($value, $exprType);
}
if ($result['type'] == Opt_Expression_Interface::ASSIGNMENT && $type != self::ASSIGN_EXPR) {
Opt_ExpressionOptionDisabled_Exception('Assignments', 'compiler requirements');
}
return $result['bare'];
}
}
