CODEWITHSUNDEEP
c#.netregex
David
David

Reputation: 16028

Using regex to extract multiple numbers from strings

I have a string with two or more numbers. Here are a few examples:

"(1920x1080)"
" 1920 by 1080"
"16 : 9"

How can I extract separate numbers like "1920" and "1080" from it, assuming they will just be separated by one or more non-numeric character(s)?

Upvotes: 8

Views: 19529

Answers (4)

Damith
Damith

Reputation: 63065

you can use 

string[] input = {"(1920x1080)"," 1920 by 1080","16 : 9"};
foreach (var item in input)
{
    var numbers = Regex.Split(item, @"\D+").Where(s => s != String.Empty).ToArray();
    Console.WriteLine("{0},{1}", numbers[0], numbers[1]);
}

OUTPUT:

1920,1080
1920,1080
16,9

Upvotes: 1

Md Kamruzzaman Sarker
Md Kamruzzaman Sarker

Reputation: 2407

You can get the string by following 

MatchCollection v = Regex.Matches(input, "[0-9]+");
foreach (Match s in v)
            {
                // output is s.Value
            }

Upvotes: 5

Oded
Oded

Reputation: 498934

The basic regular expression would be:

[0-9]+

You will need to use the library to go over all matches and get their values.

var matches = Regex.Matches(myString, "[0-9]+");

foreach(var march in matches)
{
   // match.Value will contain one of the matches
}

Upvotes: 12

dda
dda

Reputation: 6203

(\d+)\D+(\d+)

After that, customize this regex to match the flavour of the language you'll be using.

Upvotes: 1

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