how to split a string using c#

Question

I am working on a project and i want to split a string like below

DEV~Hi there is Sunday Tommorrow=1

I want to split this string as I want only text which is between the tilde(~) sign and equal sign(=). I also don't need ~ and = sign.

I have tried following code but not able to know how to split the string with tilde

obj.Code.Trim().Split('=')[1].Trim()

With the above code I can only split the string from = to sign but I want to remove the ~ sign and text on the left hand side also.

Can anyone suggest the solution?

That's not splitting. You are trying to match a specific pattern. You need a regular expression for this — Panagiotis Kanavos
– Panagiotis Kanavos, Commented May 6, 2021 at 7:02
Well, you can use Regex, but there would be also solutions without. — Fildor
– Fildor, Commented May 6, 2021 at 7:09

Tim Biegeleisen · Accepted Answer · 2021-05-06 07:09:42Z

3

Assuming your text would have exactly one tilde and equal sign, you may try the following string split:

string input = "DEV~Hi there is Sunday Tommorrow=1";
var match = Regex.Split(input, @"[~=]")[1];
Console.WriteLine(match);  // Hi there is Sunday Tommorrow

Another approach, perhaps a bit more robust, would be to use a regex replacement:

string input = "DEV~Hi there is Sunday Tommorrow=1";
string match = Regex.Replace(input, @"^.*~(.*)=.*$", "$1");
Console.WriteLine(match);  // Hi there is Sunday Tommorrow

answered May 6, 2021 at 7:09

Tim Biegeleisen

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Comments

Panagiotis Kanavos · Accepted Answer · 2021-05-06 07:18:26Z

You are trying to match a specific pattern. You need a regular expression for this. The expression ~.*= will match everything between ~ and =, including the characters:

~Hi there is Sunday Tommorrow=

To avoid capturing these characters you can use (?<=~).*(?==). The call Regex.Match(myString,"(?<=~).*(?==)") will catch just the part between the markers :

var match=Regex.Match(myString,"(?<=~).*(?==)");
Console.WriteLine(match);
-------------------------------
Hi there is Sunday Tommorrow

These are called look-around assertions. The first one, (?<=~) says that the match is precededed by ~ but the marker isn't included. The second one, (?==) says that the match is followed by = but again, the marker isn't included.

Another possibility is to use a group to capture the part(s) you want by using parentheses:

var m=Regex.Match(s,"~(.*)=");  
Console.WriteLine(m.Groups[1]);
---------------------------------
Hi there is Sunday Tommorrow

You can use more than one group in a pattern

AmirHossein Parsapour · Accepted Answer · 2021-05-06 07:09:33Z

1

The proper way to do this is using RegEx, But a smiple soloution for this case:

obj.Code.Trim().Split('~')[1].Split('=')[0].Trim()

answered May 6, 2021 at 7:09

AmirHossein Parsapour

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Comments

Haridas · Accepted Answer · 2021-05-06 07:14:48Z

1

Try the below code:

obj.Code.Trim().Split('=')[0].Trim().Split('~')[1]

answered May 6, 2021 at 7:14

Haridas

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