Problem with Regex.replace function in c#?

Question

I am formatting file which is downloaded from internet and I encountered ... , ...... So I want to replace these multiple dots with single dot. String.Replace is not going work here and I am not good with regular expressions So what is the solution..?

Thank you

So in your input string of ... , .... you'd want . , . to be the result? — GalacticCowboy
– GalacticCowboy, Commented Jun 21, 2011 at 15:03

Jon Skeet · Accepted Answer · 2011-06-21 15:03:30Z

5

My guess is you could use Regex.Replace:

text = Regex.Replace(text, @"\.+", ".");

Note that you don't have to escape the . in the replacement pattern - only substitution patterns are recognised within the replacement pattern.

answered Jun 21, 2011 at 15:03

Jon Skeet

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7 Comments

Ajit Hegde Over a year ago

yeh.. The above code works. But why did you used "@" here...?

Brad Christie Over a year ago

@AjitHegde: It's a case of a string literal. When you need (or want) to use escaped characters in a string and not escape the string itself (i.e., regex, file paths, etc.) you use these for readability/ease of use.

Jim Reineri Over a year ago

The "@" causes the C# compiler to treat the '\' as a normal character instead as an escape character

Ajit Hegde Over a year ago

I used it with files but I didnt know It also works with regular expressions.. Thanks for the information

Jon Skeet Over a year ago

@Brad: I think you mean a verbatim string literal. Just "foo" is a regular string literal.

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Brad Christie · Accepted Answer · 2011-06-21 15:05:04Z

0

myFileContents = Regex.Replace(myFileContents, @"\.+", ".");

^[Reference]

In the future, please reference this site as a source of help, not code. That is to say, provide what you've tried, what you're having problem(s) with, and how it's not working as you've anticipated--not "code this for me".

answered Jun 21, 2011 at 15:05

Brad Christie

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