How to split a text file retaining newline character

Question

I have a textfile with lines that end with \r\n. When splitting 1 line with eg. Regex:

string[] splittedFile = Regex.Split(fileString, "\n");

Original input:

:020000040008F2\r\n

:04200000004875F02F\r\n

it will output:

:020000040008F2\r

:04200000004875F02F\r

However, I want it to be:

:020000040008F2\r\n

:04200000004875F02F\r\n

How can this be done?

Thanks!

hope this helps... https://stackoverflow.com/questions/1547476/easiest-way-to-split-a-string-on-newlines-in-net — Gabriel Llorico, Aug 04 '20 at 06:20

score 1 · Answer 1 · edited Aug 04 '20 at 06:23

1

You could try the following:

string[] splittedFile = fileString.Split(
    new[] {Environment.NewLine},
    StringSplitOptions.None
);

edited Aug 04 '20 at 06:23

MindSwipe

7,193
24
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answered Aug 04 '20 at 06:11

Ranjith.V

316
1
7

score 1 · Accepted Answer · answered Aug 04 '20 at 06:12

1

You can use positive look behind:

string[] splittedFile = Regex.Split(fileString, "(?<=\r\n)");

answered Aug 04 '20 at 06:12

Andrew Arthur

1,563
2
11
17

score 0 · Answer 3 · answered Aug 04 '20 at 06:17

How about you read the file as follows:

string[] lines = File.ReadAllLines("afile.txt");

lines will not include the new line characters at all in this case, but as you don't say what you want to do next, its hard to know whether you want them there or not. Say you were to want to write the lines out again to some other file, you'd just use WriteLine from eg FileStream and the endlines would be of no concern

How to split a text file retaining newline character

3 Answers3