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<?php |
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declare(strict_types=1); |
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namespace Inspirum\XML\Parser; |
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use InvalidArgumentException; |
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use function count; |
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use function explode; |
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use function preg_match; |
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use function sprintf; |
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/** |
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* @internal |
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*/ |
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final class Parser |
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{ |
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/** |
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* Parse node name to namespace prefix and local name |
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* |
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* @return array{0: string|null, 1: string} |
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*/ |
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86 |
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public static function parseQualifiedName(string $name): array |
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{ |
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self::validateElementName($name); |
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if ($name === 'xmlns') { |
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return [$name, '']; |
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} |
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$parsed = explode(':', $name, 2); |
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if (count($parsed) === 2) { |
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return $parsed; |
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} |
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return [null, $parsed[0]]; |
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} |
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/** |
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* Get local name from node name |
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*/ |
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public static function getLocalName(string $name): string |
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{ |
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return self::parseQualifiedName($name)[1]; |
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} |
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/** |
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* Get namespace prefix from node name |
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*/ |
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public static function getNamespacePrefix(string $name): ?string |
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{ |
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return self::parseQualifiedName($name)[0]; |
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} |
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/** |
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* Validate element name |
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* |
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* @throws \InvalidArgumentException |
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*/ |
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private static function validateElementName(string $value): void |
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{ |
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$regex = '/^([a-zA-Z_][\w.-]*)(:[a-zA-Z_][\w.-]*)?$/'; |
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if (preg_match($regex, $value) !== 1) { |
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throw new InvalidArgumentException( |
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sprintf('Element name or namespace prefix [%s] has invalid value', $value), |
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); |
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} |
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} |
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/** |
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* Prefix namespaces with xmlns |
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* |
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* @param array<string,string> $attributes |
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* |
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* @return array<string,string> |
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*/ |
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37 |
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public static function parseNamespaces(array $attributes): array |
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{ |
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37 |
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$namespaces = []; |
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foreach ($attributes as $attributeName => $attributeValue) { |
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[$prefix, $namespaceLocalName] = self::parseQualifiedName($attributeName); |
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if ($prefix === 'xmlns' && $attributeValue !== '') { |
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$namespaces[$namespaceLocalName] = $attributeValue; |
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} |
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} |
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return $namespaces; |
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} |
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} |
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inspirum /
xml-php
