C# function for below requirement.

Accepted answer

Try this

string input = "Hello,How are you? Welcome !";
Console.WriteLine( input.Replace(",", ", ").Replace(" !","!"));

For generic logic, please provide us actual problem statement!

Problem statement - Read the n number of text file contents which has punctuation mistakes which should not contain unwanted space between the punctuations. (Example: the word followed by "!" symbol must not have space between the text and symbol

Rijwan Ansari5y ago

In your case, specific example or code will not work. If you string value is different then again specific example will not work. If you are looking for grammer check then use third-party tools or api.

Use

https://www.grammarbot.io/

Grammar Check API

Completely Free. Includes Spell Check.

Regards

Rijwan

manikandan r5y ago

No that is not the actual requirement. If you notice the input string, there is a space between the punctuations. that needs to be removed. not from start and end.

Priyanka K S5y ago

Var str= "Hello,How are you? Welcome !"; str = str.TrimStart().TrimEnd(); It will remove start and end space