Viewing file:  DecimalMoneyParser.php (2.45 KB) -rw-r--r--
Select action/file-type:
 (+) |  (+) |  (+) | Code (+) | Session (+) |  (+) | SDB (+) |  (+) |  (+) |  (+) |  (+) |  (+) |
<?php
declare(strict_types=1);
namespace Money\Parser;
use Money\Currencies;
use Money\Currency;
use Money\Exception\ParserException;
use Money\Money;
use Money\MoneyParser;
use Money\Number;
use function ltrim;
use function preg_match;
use function sprintf;
use function str_pad;
use function strlen;
use function substr;
use function trim;
/**
* Parses a decimal string into a Money object.
*/
final class DecimalMoneyParser implements MoneyParser
{
public const DECIMAL_PATTERN = '/^(?P<sign>-)?(?P<digits>\d+)?\.?(?P<fraction>\d+)?$/';
private Currencies $currencies;
public function __construct(Currencies $currencies)
{
$this->currencies = $currencies;
}
public function parse(string $money, Currency|null $fallbackCurrency = null): Money
{
if ($fallbackCurrency === null) {
throw new ParserException('DecimalMoneyParser cannot parse currency symbols. Use fallbackCurrency argument');
}
$decimal = trim($money);
if ($decimal === '') {
return new Money(0, $fallbackCurrency);
}
if (! preg_match(self::DECIMAL_PATTERN, $decimal, $matches) || ! isset($matches['digits'])) {
throw new ParserException(sprintf('Cannot parse "%s" to Money.', $decimal));
}
$negative = isset($matches['sign']) && $matches['sign'] === '-';
$decimal = $matches['digits'];
if ($negative) {
$decimal = '-' . $decimal;
}
$subunit = $this->currencies->subunitFor($fallbackCurrency);
if (isset($matches['fraction'])) {
$fractionDigits = strlen($matches['fraction']);
$decimal .= $matches['fraction'];
$decimal = Number::roundMoneyValue($decimal, $subunit, $fractionDigits);
if ($fractionDigits > $subunit) {
$decimal = substr($decimal, 0, $subunit - $fractionDigits);
} elseif ($fractionDigits < $subunit) {
$decimal .= str_pad('', $subunit - $fractionDigits, '0');
}
} else {
$decimal .= str_pad('', $subunit, '0');
}
if ($negative) {
$decimal = '-' . ltrim(substr($decimal, 1), '0');
} else {
$decimal = ltrim($decimal, '0');
}
if ($decimal === '' || $decimal === '-') {
$decimal = '0';
}
/** @psalm-var numeric-string $decimal */
return new Money($decimal, $fallbackCurrency);
}
}
|