How to do split number inside a string ( first position)?

Question

Follow string:

11 blabalba, balbalba balballbal  baba
12 balbal13, afafaf14 1414adad1414 12 12

I want it to return something like this (separated by split):

array 0: 11
array 1: blabalba, balbalba balballbal  baba

Second line:

array 0: 12
array 1: balbal13, afafaf14 1414adad1414 12 12

How to make a split in the first position?

Does your string occured in new line? If occured in new line you can split by \n probably. — kat1330
– kat1330, Commented Nov 8, 2017 at 2:27

Scott Hannen · Accepted Answer · 2017-11-08 02:45:25Z

2

var input = "11 blabalba, balbalba balballbal  baba";
var split = input.Split(new [] {' '}, 2);

It splits the original string by spaces but returns a maximum of two strings. So it's only going to split using the first space.

string.Split documentation

edited Nov 8, 2017 at 2:45

answered Nov 8, 2017 at 2:27

Scott Hannen

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4 Comments

Scott Hannen Over a year ago

Your example made it look like you have a string that starts with a number, followed by a space, followed by more text. Whatever the first "word" is - the first text segmented by a space - that's what's going to go in the first array element. Where it came from or whether it's random won't matter. So if the string is "124 ABC 123" you'll get ["124", "ABC 123"].

Matheus Miranda Over a year ago

What is number 2? input.Split (new [] {''}, 2);

Scott Hannen Over a year ago

The number two tells it how many elements to split the string into. If I left out the 2 then it would split "124 ABC 123" wherever there is a space, giving you an array of three elements. The 2 tells it to only return 2 elements. It will split the string on the first space, giving you a maximum of two elements, and ignore the rest of the spaces.

Matheus Miranda Over a year ago

Beautiful to your reply :)

Dakota · Accepted Answer · 2017-11-08 02:35:33Z

1

            var content = "11  blabalba, balbalba balballbal  baba";

            var splitContent = content.Split(' ');

            splitContent[1] = string.Join(" ", splitContent.Skip(1).Take(splitContent.Length - 1).ToArray());

            splitContent = splitContent.Take(2).ToArray();

answered Nov 8, 2017 at 2:35

Dakota

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Comments

Rodrick Chapman · Accepted Answer · 2017-11-08 03:11:58Z

1

var head = string.Join("", s.TakeWhile(x => char.IsDigit(x)));
var rest = string.Join("", s.Skip(head.Length + 1));

return new [] { head, rest };

Or more robustly:

var regex = new Regex(@"^(?'head'\d+)\s(?'rest'.+)$");

var match = regex.Match(s);

var head = match.Groups["head"].Value;
var rest = match.Groups["rest"].Value;

return new [] { head, rest};

edited Nov 8, 2017 at 3:11

answered Nov 8, 2017 at 2:52

Rodrick Chapman

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