src/Viserio/Component/Parser/Utils/XliffUtils.php
public static function getSchema(string $xliffVersion): string
    {
        if ($xliffVersion === '1.2') {
            $xmlUri       = 'http://www.w3.org/2001/xml.xsd';
            $schemaSource = \dirname(__DIR__, 1) . \DIRECTORY_SEPARATOR . 'Resource' . \DIRECTORY_SEPARATOR . 'schemas' . \DIRECTORY_SEPARATOR . 'xliff-core' . \DIRECTORY_SEPARATOR . 'xliff-core-1.2-strict.xsd';
        } elseif ($xliffVersion === '2.0') {
            $xmlUri       = 'informativeCopiesOf3rdPartySchemas/w3c/xml.xsd';
            $schemaSource = \dirname(__DIR__, 1) . \DIRECTORY_SEPARATOR . 'Resource' . \DIRECTORY_SEPARATOR . 'schemas' . \DIRECTORY_SEPARATOR . 'xliff-core' . \DIRECTORY_SEPARATOR . 'xliff-core-2.0.xsd';
        } else {
            throw new InvalidArgumentException(\sprintf('No support implemented for loading XLIFF version [%s].', $xliffVersion));
        }

        return self::fixLocation(\file_get_contents($schemaSource), $xmlUri);
    }
public static function getSchema(string $xliffVersion): string
    {
        if ($xliffVersion === '1.2') {
            $xmlUri       = 'http://www.w3.org/2001/xml.xsd';
            $schemaSource = \dirname(__DIR__, 1) . \DIRECTORY_SEPARATOR . 'Resource' . \DIRECTORY_SEPARATOR . 'schemas' . \DIRECTORY_SEPARATOR . 'xliff-core' . \DIRECTORY_SEPARATOR . 'xliff-core-1.2-strict.xsd';
        } elseif ($xliffVersion === '2.0') {
            $xmlUri       = 'informativeCopiesOf3rdPartySchemas/w3c/xml.xsd';
            $schemaSource = \dirname(__DIR__, 1) . \DIRECTORY_SEPARATOR . 'Resource' . \DIRECTORY_SEPARATOR . 'schemas' . \DIRECTORY_SEPARATOR . 'xliff-core' . \DIRECTORY_SEPARATOR . 'xliff-core-2.0.xsd';
        } else {
            throw new InvalidArgumentException(\sprintf('No support implemented for loading XLIFF version [%s].', $xliffVersion));
        }

        return self::fixLocation(\file_get_contents($schemaSource), $xmlUri);
    }
Get the right xliff schema from version.

@param string $xliffVersion

@throws \Viserio\Component\Contract\Parser\Exception\InvalidArgumentException;

@return string