You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
71 lines
2.9 KiB
71 lines
2.9 KiB
<?php
|
|
/**
|
|
* @license MIT
|
|
* Copyright 2017 Dustin Wilson, J. King, et al.
|
|
* See LICENSE and AUTHORS files for details
|
|
*/
|
|
|
|
declare(strict_types=1);
|
|
namespace MensBeam\HTML\DOM;
|
|
use MensBeam\HTML\DOM\InnerNode\Document as InnerDocument,
|
|
MensBeam\HTML\Parser;
|
|
|
|
|
|
/**
|
|
* Not in standard. Exists so Document and Element can share some properties and
|
|
* methods. For instance, getElementsByClassName is mentioned in the standard in
|
|
* both the Document and Element interfaces.
|
|
*/
|
|
trait DocumentOrElement {
|
|
protected function validateAndExtract(string $qualifiedName, ?string $namespace = null): array {
|
|
# To validate and extract a namespace and qualifiedName, run these steps:
|
|
# 1. If namespace is the empty string, set it to null.
|
|
if ($namespace === '') {
|
|
$namespace = null;
|
|
}
|
|
|
|
# 2. Validate qualifiedName.
|
|
# To validate a qualifiedName, throw an "InvalidCharacterError" DOMException if
|
|
# qualifiedName does not match the QName production.
|
|
if (preg_match(InnerDocument::QNAME_PRODUCTION_REGEX, $qualifiedName) !== 1) {
|
|
throw new DOMException(DOMException::INVALID_CHARACTER);
|
|
}
|
|
|
|
# 3. Let prefix be null.
|
|
$prefix = null;
|
|
|
|
# 4. Let localName be qualifiedName.
|
|
$localName = $qualifiedName;
|
|
|
|
# 5. If qualifiedName contains a ":" (U+003E), then split the string on it and
|
|
# set prefix to the part before and localName to the part after.
|
|
if (strpos($qualifiedName, ':') !== false) {
|
|
$temp = explode(':', $qualifiedName, 2);
|
|
$prefix = $temp[0];
|
|
$prefix = ($prefix !== '') ? $prefix : null;
|
|
$localName = $temp[1];
|
|
}
|
|
|
|
# 6. If prefix is non-null and namespace is null, then throw a "NamespaceError" DOMException.
|
|
# 7. If prefix is "xml" and namespace is not the XML namespace, then throw a "NamespaceError" DOMException.
|
|
# 8. If either qualifiedName or prefix is "xmlns" and namespace is not the XMLNS
|
|
# namespace, then throw a "NamespaceError" DOMException.
|
|
# 9. If namespace is the XMLNS namespace and neither qualifiedName nor prefix is
|
|
# "xmlns", then throw a "NamespaceError" DOMException.
|
|
if (
|
|
($prefix !== null && $namespace === null) ||
|
|
($prefix === 'xml' && $namespace !== Parser::XML_NAMESPACE) ||
|
|
(($qualifiedName === 'xmlns' || $prefix === 'xmlns') && $namespace !== Parser::XMLNS_NAMESPACE) ||
|
|
($namespace === Parser::XMLNS_NAMESPACE && $qualifiedName !== 'xmlns' && $prefix !== 'xmlns')
|
|
) {
|
|
throw new DOMException(DOMException::NAMESPACE_ERROR);
|
|
}
|
|
|
|
# 10. Return namespace, prefix, and localName.
|
|
return [
|
|
'namespace' => $namespace,
|
|
'prefix' => $prefix,
|
|
'localName' => $localName
|
|
];
|
|
}
|
|
}
|
|
|