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MathValidator.php
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MathValidator.php
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<?php
use DataValues\StringValue;
use ValueFormatters\Exceptions\MismatchingDataValueTypeException;
use ValueValidators\Error;
use ValueValidators\Result;
use ValueValidators\ValueValidator;
// @author Duc Linh Tran, Julian Hilbig, Moritz Schubotz
class MathValidator implements ValueValidator {
/**
* Validates a value with MathInputCheckRestbase
*
* @param mixed $value The value to validate
*
* @return \ValueValidators\Result
* @throws ValueFormatters\Exceptions\MismatchingDataValueTypeException
*/
public function validate( $value ) {
if ( !( $value instanceof StringValue ) ) {
throw new MismatchingDataValueTypeException( 'StringValue', get_class( $value ) );
}
// get input String from value
$tex = $value->getValue();
$checker = new MathInputCheckRestbase( $tex );
if ( $checker->isValid() ) {
return Result::newSuccess();
}
// TeX string is not valid
return Result::newError(
[
Error::newError( null, null, 'malformed-value', [ $checker->getError() ] )
]
);
}
/**
* @see ValueValidator::setOptions()
*
* @param array $options
*/
public function setOptions( array $options ) {
// Do nothing. This method shouldn't even be in the interface.
}
}