Split string with variable number of spaces

Question

I'm trying to split a string like this:

7       300685  1235    200017  200018  200019

In

array of strings.

I've come up with this Regex but it keeps the white spaces too:

var myStrings = System.Text.RegularExpressions.Regex.Split(linea, @"\s+");

That's because I target any string that preceeds a white space. How to not to do that and keep only not white strings.

I know that it is easily done by removing empty strings from the array but I would like to do it with the regular expression.

why don't you remove excess spaces before splitting the string? — Amber, Mar 03 '14 at 09:21
why use regex for this? simply use the Split method on the string and remove empty entries. this is more than sufficient than doing a Regex - then you could theoretically just Trim() each item in the array — Ahmed ilyas, Mar 03 '14 at 09:21
How many times this question has already been answered? I can't believe you haven't see the list of similar questions while you typed the title of this question — Steve, Mar 03 '14 at 09:26

Selman Genç · Answer 1 · 2014-03-03T09:30:15.727

Why don't you just use String.Split method ?

var myStrings = linea.Split(new [] { ' ' }, StringSplitOptions.RemoveEmptyEntries);

Another way with Split and LINQ without RemoveEmptyEntries option:

var myStrings = linea.Split().Where(x => x.All(char.IsDigit)).ToArray();

Also there is a RegexOption.IgnorePatternWhitespace parameter that you can pass your Regex.Split method to remove whitespaces:

var myStrings = Regex.Split(linea, @"\s+", RegexOptions.IgnorePatternWhitespace);

Soner Gönül · Accepted Answer · 2014-03-03T09:31:49.123

You can use StringSplitOptions.RemoveEmptyEntries enumeration with String.Split method like;

The return value does not include array elements that contain an empty string

string s = "7       300685  1235    200017  200018  200019";
var array = s.Split(new []{" "}, StringSplitOptions.RemoveEmptyEntries);
foreach (var item in array)
{
    Console.WriteLine(item);
}

Output will be;

Here a demonstration.

score 5 · Answer 3 · answered Mar 03 '14 at 09:22

5

I would suggest to simply use string.Split:

string[] s = yourString.Split(new char[] {' '}, StringSplitOptions.RemoveEmptyEntries);

See MSDN.

answered Mar 03 '14 at 09:22

Patrick Hofman

153,850
22
249
325

your first parameter is incorrect. – Selman Genç Mar 03 '14 at 09:23
`Split` is an instance method. – Jeppe Stig Nielsen Mar 03 '14 at 09:23
@Selman22: I saw that when checking the docs. Thanks. – Patrick Hofman Mar 03 '14 at 09:23

score 2 · Answer 4 · answered Mar 03 '14 at 09:23

2

Why does this not work for you:

string str = "7       300685  1235    200017  200018  200019";
str.Split(new string[] { " " }, StringSplitOptions.RemoveEmptyEntries);

You can also use String.Trim to remove all leading and trailing occurrences of a set of white-space characters.

answered Mar 03 '14 at 09:23

Sadique

22,572
7
65
91

`Split` is an instance method (non-static). – Jeppe Stig Nielsen Mar 03 '14 at 09:24

score 1 · Answer 5 · answered Mar 03 '14 at 09:23

1

Try this

  string[] splitvalue = string.Split(str, ' ', StringSplitOptions.RemoveEmptyEntries);

or:

  string[] splitvalue = str.Split(null);

or:

string[] splitvalue = str.Split(new char[0]);

answered Mar 03 '14 at 09:23

Vignesh Kumar A

27,863
13
63
115

1

`Split` is non-static (an instance method). – Jeppe Stig Nielsen Mar 03 '14 at 09:25

score 0 · Answer 6 · answered Mar 03 '14 at 09:23

0

var list = "Your String".Split(' ').Where(p =>!string.IsNullOrWhiteSpace(p));

answered Mar 03 '14 at 09:23

Suvabrata Roy

121
6

Split string with variable number of spaces

6 Answers6