36 lines
1.0 KiB
PHP
36 lines
1.0 KiB
PHP
<?php
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use Wikibase\DataModel\Snak\PropertyValueSnak;
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use Wikibase\Rdf\ValueSnakRdfBuilder;
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use Wikimedia\Purtle\RdfWriter;
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class MathMLRdfBuilder implements ValueSnakRdfBuilder {
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/**
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* Adds a value
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*
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* @param RdfWriter $writer
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* @param string $propertyValueNamespace Property value relation namespace
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* @param string $propertyValueLName Property value relation name
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* @param string $dataType Property data type
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* @param PropertyValueSnak $snak
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*/
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public function addValue(
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RdfWriter $writer,
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$propertyValueNamespace,
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$propertyValueLName,
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$dataType,
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PropertyValueSnak $snak
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) {
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$renderer = new MathMathML( $snak->getDataValue()->getValue() );
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if ( $renderer->checkTeX() && $renderer->render() ) {
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$mml = $renderer->getMathml();
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} else {
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$err = $renderer->getLastError();
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$mml = "<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><merror>$err</merror></math>";
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}
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$writer->say( $propertyValueNamespace, $propertyValueLName )
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->value( $mml, 'http://www.w3.org/1998/Math/MathML' );
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}
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}
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