how to split string using regex

Question

I'd like to split a string with using pattern like this:

it starts and ends with '\n' and contains an arbitrary number of whitespace or '\n' in between.

Edit:

This input:

string s = "aaa\n    \nbbb\n    \nccc\n   \n   \nddd";

should result in an array containing

aaa
bbb
ccc
ddd

Please edit your post to provide some sample input, and the output you'd like to obtain. As written, it seems very unclear to me. — Ken White
– Ken White, Commented Nov 11, 2011 at 23:32

Austin Salonen · Accepted Answer · 2011-11-11 23:43:33Z

5

Given your example, string.Split will be much cleaner.

var vals = s.Split('\n', StringSplitOptions.RemoveEmptyEntries);

answered Nov 11, 2011 at 23:43

Austin Salonen

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1 Comment

I think this leaves array entries with spaces. Should the first parameter maybe be: new char[] { '\n', ' ' }?

Mark Wilkins · Accepted Answer · 2011-11-11 23:46:40Z

3

For the one example given, the following would accomplish the specified results:

string str = "aaa\n   \nbbb\n   \nccc\n   \n   \nddd";
string[] result = Regex.Split(str, "\n\\s*");

answered Nov 11, 2011 at 23:46

Mark Wilkins

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