Esempio n. 1
0
 /**
  * Creates a DecimalValue from a given string.
  *
  * The decimal notation for the value is based on ISO 31-0, with some modifications:
  * - the decimal separator is '.' (period). Comma is not used anywhere.
  * - leading and trailing as well as any internal whitespace is ignored
  * - the following characters are ignored: comma (","), apostrophe ("'").
  * - scientific (exponential) notation is supported using the pattern /e[-+]\d+/
  * - the number may start (or end) with a decimal point.
  * - leading zeroes are stripped, except directly before the decimal point
  * - trailing zeroes are stripped, except directly after the decimal point
  * - zero is always positive.
  *
  * @see StringValueParser::stringParse
  *
  * @since 0.1
  *
  * @param string $value
  *
  * @return DecimalValue
  * @throws ParseException
  */
 protected function stringParse($value)
 {
     $rawValue = $value;
     $value = $this->unlocalizer->unlocalizeNumber($value);
     //handle scientific notation
     list($value, $exponent) = $this->splitDecimalExponent($value);
     $value = $this->normalizeDecimal($value);
     if ($value === '') {
         throw new ParseException('Decimal value must not be empty', $rawValue, self::FORMAT_NAME);
     }
     try {
         $decimal = new DecimalValue($value);
         $decimal = $this->applyDecimalExponent($decimal, $exponent);
         return $decimal;
     } catch (IllegalValueException $ex) {
         throw new ParseException($ex->getMessage(), $rawValue, self::FORMAT_NAME);
     }
 }