toStandardNegative.cls

  /**
  * Checks and converts strings when they contain accounting negative format ($1,000.00)
  * to standard negative format -$1,000.00
  *
  * @param str Input String to evaluate
  *
  * @return String containing converted value, or original value if there was no match found
  */
  public static String toStandardNegative(String str) {
    Pattern negPattern = Pattern.compile('^\\((.+)\\)$');
    Matcher negMatcher = negPattern.matcher(str);
    if (negMatcher.matches()) {
      str = '-' + negMatcher.group(1);
    }
    return str;
  }