/// <summary>
        /// Returns collection of names of the current <see cref="Chord"/>.
        /// </summary>
        /// <returns>Collection of names of the current <see cref="Chord"/>.</returns>
        public IReadOnlyCollection <string> GetNames()
        {
            if (_chordNames != null)
            {
                return(_chordNames);
            }

            var names = ChordsNamesTable.GetChordNames(NotesNames.ToArray());

            return(_chordNames = new ReadOnlyCollection <string>(names));
        }
Esempio n. 2
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        internal static ParsingResult TryParse(string input, out Chord chord)
        {
            chord = null;

            if (string.IsNullOrWhiteSpace(input))
                return ParsingResult.EmptyInputString;

            var match = ParsingUtilities.Match(input, Patterns, ignoreCase: false);
            if (match == null)
                return ParsingResult.NotMatched;

            var rootNoteNameGroup = match.Groups[RootNoteNameGroupName];

            NoteName rootNoteName;
            var rootNoteNameParsingResult = NoteNameParser.TryParse(rootNoteNameGroup.Value, out rootNoteName);
            if (rootNoteNameParsingResult.Status != ParsingStatus.Parsed)
                return rootNoteNameParsingResult;

            //

            NoteName? bassNoteName = null;
            var bassNoteNameGroup = match.Groups[BassNoteNameGroupName];
            if (bassNoteNameGroup.Success)
            {
                NoteName actualBassNoteName;
                var bassNoteNameParsingResult = NoteNameParser.TryParse(bassNoteNameGroup.Value, out actualBassNoteName);
                if (bassNoteNameParsingResult.Status != ParsingStatus.Parsed)
                    return bassNoteNameParsingResult;

                bassNoteName = actualBassNoteName;
            }

            var notesNames = ChordsNamesTable.GetChordNotesNames(rootNoteName, match.Groups[ChordCharacteristicsGroupName].Value, bassNoteName);
            if (!notesNames.Any())
                return ParsingResult.Error(ChordCharacteristicIsUnknown);
            
            chord = new Chord(notesNames);
            return ParsingResult.Parsed;
        }