anchor.diff:  }
   
   /// Compares strings [a] and [b] according to lower-case
  -/// [natural sort ordering].
  +/// [natural sort ordering][].
   ///
   /// ASCII letters are converted to lower case before being compared, like
   /// for [compareAsciiLowerCase], then the result is compared like for
  
positive.code:   return defaultResult.sign;
  }
  
  /// 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
  
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
  