anchor.diff:    return defaultResult.sign;
   }
   
  -/// Compares strings [a] and [b] according to [natural sort ordering].
  +/// Compares strings [a] and [b] according to [natural sort ordering][].
   ///
   /// A natural sort ordering is a lexical ordering where embedded
   /// numerals (digit sequences) are treated as a single unit and ordered by
  
positive.code: }
  
  /// Compares strings [a] and [b] according to lower-case
  /// [natural sort ordering].
  ///
  /// ASCII letters are converted to lower case before being compared, like
  /// for [compareAsciiLowerCase], then the result is compared like for
  
negative.code: }
  
  /// Compares strings [a] and [b] according to upper-case
  /// [natural sort ordering][].
  ///
  /// ASCII letters are converted to upper case before being compared, like
  /// for [compareAsciiUpperCase], then the result is compared like for
  