CODEWITHSUNDEEP
c#regex
Anh Nguyen
Anh Nguyen

Reputation: 313

split number from a string in c#

I have a string in c# like this :

{ name: "Phai dấu cuộc tình", mp3: "audio\\16\\Phai dau cuoc tinh.mp3"},{ name: "Caravan of life", mp3: "audio\\4\\Caravan of life.mp3"},{ name: "I'm Forbidden", mp3: "audio\\11\\I'm Forbidden.mp3"},{ name: "Cause i love you", mp3: "audio\\6\\Cause i love you.mp3"},{ name: "Chỉ là giấc mơ", mp3: "audio\\8\\Chi la giac mo.mp3"},{ name: "Lột xác", mp3: "audio\\12\\Lot xac.mp3"}

I want to get the number between "\\" to a new string. For example, the result will be : 16;4;11;6;8;12. Any help would be great.

Upvotes: 1

Views: 146

Answers (1)

falsetru
falsetru

Reputation: 369494

Using positive lookaround assertions:

string str = "{ name: \"Phai dấu cuộc tình\", mp3: \"audio\\16\\Phai dau cuoc tinh.mp3\"},{ name: \"Caravan of life\", mp3: \"audio\\4\\Caravan of life.mp3\"},{ name: \"I'm Forbidden\", mp3: \"audio\\11\\I'm Forbidden.mp3\"},{ name: \"Cause i love you\", mp3: \"audio\\6\\Cause i love you.mp3\"},{ name: \"Chỉ là giấc mơ\", mp3: \"audio\\8\\Chi la giac mo.mp3\"},{ name: \"Lột xác\", mp3: \"audio\\12\\Lot xac.mp3\"}";

foreach (var match in Regex.Matches(str, @"(?<=\\)\d+(?=\\)"))
    Console.WriteLine(match);

Alternative: capturing group

foreach (Match match in Regex.Matches(str, @"\\(\d+)\\"))
    Console.WriteLine(match.Groups[1]);

ideone

Upvotes: 6

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