bool _handleAbbreviation()

in lib/src/parser.dart [188:223]

• 25 lines of code
• 4 McCabe index (conditional complexity)

  bool _handleAbbreviation(
      String lettersAndDigits, String rest, Parser innermostCommand) {
    var c = lettersAndDigits.substring(0, 1);
    var first = _grammar.findByAbbreviation(c);
    if (first == null) {
      // Walk up to the parent command if possible.
      _validate(
          _parent != null, 'Could not find an option with short name "-$c".');
      return _parent!
          ._handleAbbreviation(lettersAndDigits, rest, innermostCommand);
    } else if (!first.isFlag) {
      // The first character is a non-flag option, so the rest must be the
      // value.
      var value = '${lettersAndDigits.substring(1)}$rest';
      _setOption(_results, first, value);
    } else {
      // If we got some non-flag characters, then it must be a value, but
      // if we got here, it's a flag, which is wrong.
      _validate(
          rest == '',
          'Option "-$c" is a flag and cannot handle value '
          '"${lettersAndDigits.substring(1)}$rest".');

      // Not an option, so all characters should be flags.
      // We use "innermostCommand" here so that if a parent command parses the
      // *first* letter, subcommands can still be found to parse the other
      // letters.
      for (var i = 0; i < lettersAndDigits.length; i++) {
        var c = lettersAndDigits.substring(i, i + 1);
        innermostCommand._parseShortFlag(c);
      }
    }

    _args.removeFirst();
    return true;
  }