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RemoveNamespaces.php
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RemoveNamespaces.php
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<?php
declare(strict_types=1);
namespace VeeWee\Xml\Dom\Traverser\Visitor;
use VeeWee\Xml\Dom\Traverser\Action;
use VeeWee\Xml\Exception\RuntimeException;
use function Psl\Iter\contains;
use function VeeWee\Xml\Dom\Predicate\is_attribute;
use function VeeWee\Xml\Dom\Predicate\is_element;
use function VeeWee\Xml\Dom\Predicate\is_xmlns_attribute;
final class RemoveNamespaces extends AbstractVisitor
{
/**
* @var null | callable(\DOM\Attr | \DOM\Element): bool
*/
private $filter;
/**
* @param null | callable(\DOM\Attr): bool $filter
*/
public function __construct(
?callable $filter = null
) {
$this->filter = $filter;
}
public static function all(): self
{
return new self();
}
public static function prefixed(): self
{
return new self(
static fn (\DOM\Attr | \DOM\Element $node): bool => $node->prefix !== null
);
}
public static function unprefixed(): self
{
return new self(
static fn (\DOM\Attr | \DOM\Element $node): bool => $node->prefix === null
);
}
/**
* @param list<string> $prefixes
*/
public static function byPrefixNames(array $prefixes): self
{
return new self(
static fn (\DOM\Attr | \DOM\Element $node): bool => match(true) {
is_xmlns_attribute($node) => contains($prefixes, $node->prefix !== null ? $node->localName : ''),
default => contains($prefixes, $node->prefix)
}
);
}
/**
* @param list<string> $URIs
*/
public static function byNamespaceURIs(array $URIs): self
{
return new self(
static fn (\DOM\Attr | \DOM\Element $node): bool => match(true) {
is_xmlns_attribute($node) => contains($URIs, $node->value),
default => contains($URIs, $node->namespaceURI),
}
);
}
public function onNodeEnter(\DOM\Node $node): Action
{
if (is_xmlns_attribute($node)) {
return new Action\Noop();
}
if (!$this->shouldDealWithNode($node)) {
return new Action\Noop();
}
return new Action\RenameNode($node->localName, null);
}
/**
* @throws RuntimeException
*/
public function onNodeLeave(\DOM\Node $node): Action
{
if (!is_xmlns_attribute($node)) {
return new Action\Noop();
}
if (!$this->shouldDealWithNode($node)) {
return new Action\Noop();
}
return new Action\RemoveNode();
}
private function shouldDealWithNode(\DOM\Node $node): bool
{
if (!is_element($node) && !is_attribute($node)) {
return false;
}
if ($node->namespaceURI === null) {
return false;
}
if ($this->filter === null) {
return true;
}
return ($this->filter)($node);
}
}