c# - 查找特定子字符串中匹配的乘法组

我想在下面以“ need”单词开头的字符串中捕获粗体值，而必须忽略以“ skip”和“ ignored”开头的其他字符串中的单词。我尝试了模式

need.+?(:"(?'index'\w+)"[,}])

但它只找到第一个（以太值）值。如何仅使用RegEx获得所需的结果？

“ skip”：{“ A”：“ ABCD123”，“ B”：“ ABCD1234”，“ C”：“ ABCD1235”}

“需要”：{“ A”：“ ZABCD123”，“ B”：“ ZABCD1234”，“ C”：“ ZABCD1235”}

“ ignore”：{“ A”：“ SABCD123”，“ B”：“ SABCD1234”，“ C”：“ SABCD1235”}

最佳答案

我们将找到need并将找到的内容分组为Named Match Group => Captures。将有两组，一组名为Index容纳A | B | C，然后一组名为Data。

匹配项将保存我们的数据，如下所示：



从那里我们将把它们加入字典中：



这是执行此魔术的代码：

string data =
@"""skip"" : {""A"":""ABCD123"",""B"":""ABCD1234"",""C"":""ABCD1235""}
""need"" : {""A"":""ZABCD123"",""B"":""ZABCD1234"",""C"":""ZABCD1235""}
""ignore"" : {""A"":""SABCD123"",""B"":""SABCD1234"",""C"":""SABCD1235""}";

string pattern = @"
\x22need\x22\s *:\s *{   # Find need
(                        # Beginning of Captures
   \x22                     #  Quote is \x22
   (?<Index>[^\x22] +)      # A into index.
   \x22\:\x22               # ':'
   (?<Data>[^\x22] +)       # 'Z...' Data
   \x22,?                   # ',(maybe)
)+                       # End of 1 to many Captures";


var mt = Regex.Match(data,
                     pattern,
                     RegexOptions.IgnorePatternWhitespace | RegexOptions.ExplicitCapture);

// Get the data capture into a List<string>.
var captureData = mt.Groups["Data"].Captures.OfType<Capture>()
                                            .Select(c => c.Value).ToList();

// Join the index capture data and project it into a dictionary.
var asDictionary = mt.Groups["Index"]
                     .Captures.OfType<Capture>()
                     .Select((cp, iIndex) => new KeyValuePair<string,string>
                                                 (cp.Value, captureData[iIndex]) )
                     .ToDictionary(kvp => kvp.Key, kvp => kvp.Value );

关于c# - 查找特定子字符串中匹配的乘法组，我们在Stack Overflow上找到一个类似的问题：https://stackoverflow.com/questions/43942757/