%PDF-
%PDF-
Mini Shell
Mini Shell
<?php
namespace Wikimedia\Purtle;
/**
* Base class for RdfWriter implementations that output an N3 dialect.
*
* @license GPL-2.0-or-later
* @author Daniel Kinzler
*/
abstract class N3RdfWriterBase extends RdfWriterBase {
/**
* @var N3Quoter
*/
protected $quoter;
/**
* @param string $role
* @param BNodeLabeler|null $labeler
* @param N3Quoter|null $quoter
*/
public function __construct(
$role = parent::DOCUMENT_ROLE,
BNodeLabeler $labeler = null,
N3Quoter $quoter = null
) {
parent::__construct( $role, $labeler );
$this->quoter = $quoter ?: new N3Quoter();
}
protected function writeRef( $base, $local = null ) {
if ( $local === null ) {
if ( $base === 'a' ) {
$this->write( 'a' );
} else {
$this->writeIRI( $base );
}
} else {
$this->write( "$base:$local" );
}
}
protected function writeIRI( $iri, $trustIRI = false ) {
if ( !$trustIRI ) {
$iri = $this->quoter->escapeIRI( $iri );
}
$this->write( "<$iri>" );
}
protected function writeText( $text, $language = null ) {
$value = $this->quoter->escapeLiteral( $text );
$this->write( '"' . $value . '"' );
if ( $this->isValidLanguageCode( $language ) ) {
$this->write( '@' . $language );
}
}
/**
* @param string $value
* @param string|null $typeBase
* @param string|null $typeLocal
*/
protected function writeValue( $value, $typeBase, $typeLocal = null ) {
$value = $this->quoter->escapeLiteral( $value );
$this->write( '"' . $value. '"' );
if ( $typeBase !== null ) {
$this->write( '^^' );
$this->writeRef( $typeBase, $typeLocal );
}
}
}
Zerion Mini Shell 1.0