C# Regex Capture Substring Without Whitespace

Question

I parse simple json object:

{"phone":"8 920 034-00-88"}

To get phone number i use code below:

string phoneStr = @"{""phone"":""8 920 034-00-88""}";
string searchPattern = @"{\s*""phone""\s*:\s*""(?<phone>.+)""\s*}";

Match match = Regex.Match(phoneStr, searchPattern);
if (match.Success)
   Console.WriteLine("Phone number:{0}", match.Groups["phone"].Value);
else
   Console.WriteLine("Phone number did not match");

I get result like: '8 920 034-00-88', but i need only digit symbol in phone number without whitespace and '-' like: '89200340088'. Can i get this result use only Regex?

var digits = new string("{\"phone\":\"8 920 034-00-88\"}".Where(char.IsDigit).ToArray());? — Soner Gönül
– Soner Gönül, Commented Aug 17, 2015 at 17:20

lintmouse · Accepted Answer · 2015-08-17 17:23:14Z

2

You can use Regex.Replace and replace everything that isn't a digit:

var result = new Regex(@"\D").Replace(phoneStr, string.Empty);

edited Aug 17, 2015 at 17:23

answered Aug 17, 2015 at 17:22

lintmouse

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Comments

M. Nasir Javaid · Accepted Answer · 2015-08-17 17:26:34Z

0

Try this to remove whitespaces, hyphens and apostrophes

var value = Regex.Replace("8 920 034 - 00 - 88", @"\s|\-|'", "");

Result: value = 89200340088

edited Aug 17, 2015 at 17:26

answered Aug 17, 2015 at 17:21

M. Nasir Javaid

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1 Comment

melwil Over a year ago

Replace any non-digit is far safer, as long as you want any kind of padding removed. Some places use / as separator as well, there's no end to the delimiters.

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