#region Step1 輸入有效性驗證
if (!Regex.IsMatch(input, @"(?<=-|^)/d*/.?/d*$"))
throw new ArgumentException("錯誤的輸入金額！");
if (Regex.IsMatch(input, @"^/d{25,}"))
throw new ArgumentException("輸入數據太大無法轉換！");
#endregion
#region Step2 格式化為中間字符串
var positionDic = new Dictionary<int, string> {
{0,"F"},{1,"J"},{2,"."},{3,"S"},{4,"B"},{5,"Q"},{6,"W"},{7,"SW"},{8,"BW"},{9,"QW"},
{10,"Y"},{11,"SY"},{12,"BY"},{13,"QY"},{14,"WY"},{15,"SWY"},{16,"BWY"},{17,"QWY"},{18,"YY"},
{19,"SYY"},{20,"BYY"},{21,"QYY"},{22,"WYY"},{23,"SWYY"},{24,"BWYY"},{25,"QWYY"}
};
input = Regex.Replace(input, @"^/.", "0.");
var integerPart = Regex.Replace(input, @"^-|/..*$", "");
var _matchDecimal = Regex.Match(input, @"/./d*$", RegexOptions.None);
var decimalPart = Regex.Replace(_matchDecimal.Success ? Convert.ToDouble(_matchDecimal.Value).ToString("0.00") : "00", @"0/.", "");
var processStack = new Stack<string>();
var charsArray = (integerPart + decimalPart).Reverse<char>();
for (int i = 0; i < charsArray.Count(); i++) {
processStack.Push(string.Format("{0}{1}", charsArray.ElementAt(i), positionDic[i]));
}
//符號處理
if (Regex.IsMatch(input, "^-", RegexOptions.None)) {
processStack.Push("-");
}
if (prefix) {
processStack.Push("￥");
}
var process = string.Empty;
while (processStack.Count > 0) {
process += processStack.Pop();
}
//語義處理模式隊列
Queue<Tuple<string, string, MatchEvaluator>> patterns = new Queue<Tuple<string, string, MatchEvaluator>>();
var patternBuilder = new StringBuilder();
for (int i = 3; i < positionDic.Count; i++) {
patternBuilder.AppendFormat("{0}{1}", (i == 3 ? "(0(?:" : "") + positionDic[i], i == positionDic.Count - 1 ? ")+?)+" : "|");
}
patterns.Enqueue(Tuple.Create<string, string, MatchEvaluator>(patternBuilder.ToString(), "0", null));
patterns.Enqueue(Tuple.Create<string, string, MatchEvaluator>(@"(?:/d+(?:QW|BW|SW|W|Q|B|S)?/d?YY)+", null, m => m.Value.Replace("YY", "") + "YY"));
patterns.Enqueue(Tuple.Create<string, string, MatchEvaluator>(@"(?:/d+(?:QW|BW|SW|W|Q|B|S)?/d?Y)+", null, m => m.Value.Replace("Y", "") + "Y"));
patterns.Enqueue(Tuple.Create<string, string, MatchEvaluator>(@"(?:/d+(?:Q|B|S)?/d?W)+", null, m => m.Value.Replace("W", "") + "W"));
patterns.Enqueue(Tuple.Create<string, string, MatchEvaluator>(@"(?!^)0+/.", ".", null));
patterns.Enqueue(Tuple.Create<string, string, MatchEvaluator>(@"^0/.0J|^0/.", "", null));
patterns.Enqueue(Tuple.Create<string, string, MatchEvaluator>("0J|0F", "0", null));
patterns.Enqueue(Tuple.Create<string, string, MatchEvaluator>("J0?$", "JZ", null));
patterns.Enqueue(Tuple.Create<string, string, MatchEvaluator>(@"/.$|/.0+$", ".Z", null));
patterns.Enqueue(Tuple.Create<string, string, MatchEvaluator>(@"^0+$|^[^.]{0}$", "0.Z", null));
while (patterns.Count > 0) {
var pattern = patterns.Dequeue();
if (pattern.Item3 != null) {
process = Regex.Replace(process, pattern.Item1, pattern.Item3);
}
else {
process = Regex.Replace(process, pattern.Item1, pattern.Item2);
}
}
#endregion
#region Step3 翻譯中間字符串
StringBuilder result = new StringBuilder();
var translatorDic = new Dictionary<char, string> {
{'0',"零"},{'1',"壹"},{'2',"貳"},{'3',"叁"},{'4',"肆"},{'5',"伍"},{'6',"陸"},{'7',"柒"},{'8',"捌"},{'9',"玖"},
{'S',"拾"},{'B',"佰"},{'Q',"仟"},{'W',"
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