internal func _rangeOfRegularExpressionPattern(regex pattern: String, options mask: CompareOptions, range searchRange: NSRange, locale: Locale?) -> NSRange { var matchedRange = NSRange(location: NSNotFound, length: 0) let regexOptions: NSRegularExpression.Options = mask.contains(.caseInsensitive) ? .caseInsensitive : [] let matchingOptions: NSRegularExpression.MatchingOptions = mask.contains(.anchored) ? .anchored : [] if let regex = _createRegexForPattern(pattern, regexOptions) { matchedRange = regex.rangeOfFirstMatch(in: _swiftObject, options: matchingOptions, range: searchRange) } return matchedRange }
