CODEWITHSUNDEEP
c#
user3085995
user3085995

Reputation: 453

Split a string containing digits

I'm having a string like,

"abc kskd 8.900 prew"

need to Split this string so that i get the result as "abc kskd" and "8.900 prew"

how can i achieve this with C#?

Upvotes: 1

Views: 178

Answers (5)

gookman
gookman

Reputation: 2866

Something similar to what @Dominic Kexel provided, but only if you don't want to use linq.

string[] result = Regex.Split("abc kskd 8.900 prew", @"\w*(?=\d+\.\d)");

Upvotes: 0

petchirajan
petchirajan

Reputation: 4352

Try this,

public string[] SplitText(string text)
{
var startIndex = 0;
while (startIndex < text.Length)
{
    var index = text.IndexOfAny("0123456789".ToCharArray(), startIndex);
    if (index < 0)
    {
        break;
    }

    var spaceIndex = text.LastIndexOf(' ', startIndex, index - startIndex);
    if (spaceIndex != 0)
    {
        return new String[] { text.Substring(0, spaceIndex), text.Substring(spaceIndex + 1) };
    }

    startIndex = index;
}

return new String[] {text};
}

Upvotes: 0

sloth
sloth

Reputation: 101032

straightforward with a regular expression:

var str = "abc kskd 8.900 prew";
var result = Regex.Split(str, @"\W(\d.*)").Where(x => x!="").ToArray();

Upvotes: 0

Luaan
Luaan

Reputation: 63722

This should do if you don't need to do something complicated:

var data = "abc kskd 8.900 prew";
var digits = "0123456789".ToCharArray();

var idx = data.IndexOfAny(digits);

if (idx != -1)
{
  var firstPart = data.Substring(0, idx - 1);
  var secondPart = data.Substring(idx);
}

IndexOfAny is actually very fast.

This could also be modified to separate the string into more parts (using the startIndex parameter), but you didn't ask for that.

Upvotes: 2

Selman Gen&#231;
Selman Gen&#231;

Reputation: 101680

Get the index of first digit using LINQ then use Substring:

var input = "abc kskd 8.900 prew";
var index = input.Select( (x,idx) => new {x, idx})
           .Where(c => char.IsDigit(c.x))
           .Select(c => c.idx)
           .First();

var part1 = input.Substring(0, index);
var part2 = input.Substring(index);

Upvotes: 3

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