public function transform($value)
{
if (is_null($value)) {
return $value;
}
if (is_scalar($value)) {
$value = (string) $value;
}
if (!is_string($value)) {
throw new TransformationFailedException(sprintf('Expected a string to transform, got %s instead', json_encode($value)));
}
// make sure grouping is not used
$this->grouping = false;
$formatter = $this->getNumberFormatter();
$groupSep = $formatter->getSymbol(\NumberFormatter::GROUPING_SEPARATOR_SYMBOL);
$decSep = $formatter->getSymbol(\NumberFormatter::DECIMAL_SEPARATOR_SYMBOL);
// remove grouping separator
$value = str_replace($groupSep, '', $value);
// try to match something like 1234 or 1234<dec>45
// discard alphanumeric characters altogether
if (!preg_match('/(\\-?\\d+(' . preg_quote($decSep) . '\\d+)?)/', $value, $matches)) {
// could not find any digit
return null;
}
// use the matched numbers as value
$value = $matches[1];
return parent::transform($value);
}
/**
* @dataProvider getInvalidTransformationData
* @expectedException \TreeHouse\Feeder\Exception\TransformationFailedException
*/
public function testTransformationFailure($value)
{
$transformer = new LocalizedStringToNumberTransformer(null, null, true);
$transformer->transform($value);
}
