CODEWITHSUNDEEP
c#string
rigamonk
rigamonk

Reputation: 1181

Parse string into array when string is separated by a number of nulls

I have a file that, after opening it in Notepad++ looks like it contains character strings separated by 3 null characters. I tried:

using (StreamReader _sr = new StreamReader(FilePath)){
    string _stuff = _sr.ReadToEnd();
    string[] _test = _stuff.Split(new char[]{(char) 0},3);
}

but _test, which is the result of the split shows the bulk of the string (including those separated by 3 nulls).

How can I turn this:

AAANULNULNULBBBNULNULNULCCCCNULNULNUL

into this:

{"AAA","BBB","CCC"}

Upvotes: 1

Views: 79

Answers (4)

Gabe
Gabe

Reputation: 670

var cleanArray = Regex.Replace(source, @"\0+", " ")
                          .Split(new char[] {' '}, StringSplitOptions.RemoveEmptyEntries);

Bit late to the party but this works fine to.

Upvotes: 0

Divisadero
Divisadero

Reputation: 913

_stuff.Split("NUL").Where(x=> !string.IsNullOrEmpty(x)).ToArray()

This way you dont care for number of NUL repetitions.

Edit thanks to &fubo -> _stuff.Split("NUL", StringSplitOptions.RemoveEmptyEntries).ToArray()

If by NULL was meant null char, you can use '\0'

Upvotes: 0

Dmitrii Bychenko
Dmitrii Bychenko

Reputation: 186823

Just String.Split:

  String source = "AAA\0\0\0BBB\0\0\0CCCC\0\0\0";

  String[] result = source.Split(
    new Char[] { '\0' }, 
    StringSplitOptions.RemoveEmptyEntries);

Test:

   // AAA, BBB, CCCC
   Console.Write(String.Join(", ", result));

In case you want to split by tripled NUL only:

  String[] result = source.Split(
    new String[] { "\0\0\0" }, 
    StringSplitOptions.RemoveEmptyEntries);

Upvotes: 5

displayName
displayName

Reputation: 14399

You are parsing a string with control characters. NUL is 0th control character. You can use the following:

var _test = _stuff.Split(new []{(char) 0});

Upvotes: 0

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