Regular expression for one or more white spaces, tabs or newlines

Question

I am currently using this regex replace statement:

currentLine = Regex.Replace(currentLine, " {1,} \t \n", @" ");

It doesn't seem to be working.

I need a regular expression, that replaces white space(s), new line characters and/or tabs with a single white space.

Are there any other space characters, that I should have in mind ?

http://stackoverflow.com/questions/206717/how-do-i-replace-multiple-spaces-with-a-single-space-in-c — Sybren, Oct 30 '14 at 18:48
your regex will lookfor one or more space followed by tab then space then a new line. You should use or (|) operator if you want to match one of them. Something like "\s+|\t+|\n+" — Learner, Oct 30 '14 at 18:51

score 27 · Accepted Answer · answered Oct 30 '14 at 18:49

27

For all whitespace use:

\s+

for specific chars you can use:

[ \t\n]+

Other space characters are \r and \f

answered Oct 30 '14 at 18:49

codenheim

score 4 · Answer 2 · answered Oct 30 '14 at 18:48

4

currentLine = Regex.Replace(currentLine, @"\s+", " ");

+ is shorthand for 1 or more and \s is "whitespace".

answered Oct 30 '14 at 18:48

Guvante

2

It should be noted that `\s` matches `Unicode` only in `c#`. That may or may not be an issue. – Mr. Mascaro Oct 30 '14 at 18:57
1

@EvaldasB, @ is for: http://stackoverflow.com/questions/556133/whats-the-in-front-of-a-string-in-c – Wyatt Earp Oct 30 '14 at 19:05

2 Answers2