Example #1
0
        ///////////////////////////////////////////////////////////////////////////////////////////////

        private static IDictionary <long, string> Merge(
            IDictionary <long, IDictionary <char, long> > flags,
            bool sort
            )
        {
            IDictionary <long, string> result = new LongStringDictionary();

            foreach (KeyValuePair <long, IDictionary <char, long> > pair in flags)
            {
                result.Add(pair.Key, (string)DictionaryToChars(
                               pair.Value, sort)); /* ADD ONLY */
            }

            return(result);
        }
Example #2
0
        ///////////////////////////////////////////////////////////////////////////////////////////////

        public static IDictionary <long, string> Change( /* 1.2 */
            IDictionary <long, string> flags,
            long key,
            string changeFlags,
            bool sort,
            ref Result error
            )
        {
            if (flags != null)
            {
                if (changeFlags != null)
                {
                    IDictionary <long, string> newFlags = new LongStringDictionary(flags);

                    IDictionary <char, long> keyFlags = newFlags.ContainsKey(key) ?
                                                        CharsToDictionary(newFlags[key]) : new CharLongDictionary();

                    bool add = true; /* NOTE: Default to add mode. */

                    for (int index = 0; index < changeFlags.Length; index++)
                    {
                        char character = changeFlags[index];

                        switch (character)
                        {
                        case AddCharacter:
                        {
                            add = true;

                            break;
                        }

                        case RemoveCharacter:
                        {
                            add = false;

                            break;
                        }

                        case SetCharacter:
                        {
                            keyFlags.Clear();

                            add = true;

                            break;
                        }

                        case AllChars:
                        case AllDigitChars:
                        case AllAlphabetChars:
                        case AllUpperAlphabetChars:
                        case AllLowerAlphabetChars:
                        {
                            IEnumerable <char> characters = GetChars(character);

                            if (characters != null)
                            {
                                foreach (char newCharacter in characters)
                                {
                                    if (add)
                                    {
                                        if (keyFlags.ContainsKey(newCharacter))
                                        {
                                            keyFlags[newCharacter]++;
                                        }
                                        else
                                        {
                                            keyFlags.Add(newCharacter, 1);
                                        }
                                    }
                                    else if (keyFlags.ContainsKey(newCharacter))
                                    {
                                        keyFlags.Remove(newCharacter);
                                    }
                                }
                            }
                            else
                            {
                                error = String.Format(
                                    "invalid change meta-character '{0}' at index {1}",
                                    character, index);

                                return(null);
                            }
                            break;
                        }

                        default:
                        {
                            if (!CharIsValidValue(character))
                            {
                                error = String.Format(
                                    "invalid change character '{0}' at index {1}",
                                    character, index);

                                return(null);
                            }

                            if (add)
                            {
                                if (keyFlags.ContainsKey(character))
                                {
                                    keyFlags[character]++;
                                }
                                else
                                {
                                    keyFlags.Add(character, 1);
                                }
                            }
                            else if (keyFlags.ContainsKey(character))
                            {
                                keyFlags.Remove(character);
                            }
                            break;
                        }
                        }
                    }

                    if (newFlags.ContainsKey(key))
                    {
                        if (keyFlags.Count > 0)
                        {
                            newFlags[key] = (string)DictionaryToChars(keyFlags, sort);
                        }
                        else
                        {
                            newFlags.Remove(key);
                        }
                    }
                    else if (keyFlags.Count > 0)
                    {
                        newFlags.Add(key, (string)DictionaryToChars(
                                         keyFlags, sort)); /* ADD ONLY */
                    }

                    return(newFlags);
                }
                else
                {
                    error = "invalid change flags";
                }
            }
            else
            {
                error = "invalid flags";
            }

            return(null);
        }