How to read text file by particular line separator character?

Question

Reading a text file using streamreader.

using (StreamReader sr = new StreamReader(FileName, Encoding.Default))
{
     string line = sr.ReadLine();
}
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Answer 1

You either have to parse the stream byte-by-byte yourself and handle the split, or you need to use the default ReadLine behavior which splits on /r, /n, or /r/n.

If you want to parse the stream byte-by-byte, I'd use something like the following extension method:

 public static string ReadToChar(this StreamReader sr, char splitCharacter)
    {        
        char nextChar;
        StringBuilder line = new StringBuilder();
        while (sr.Peek() > 0)
        {               
            nextChar = (char)sr.Read();
            if (nextChar == splitCharacter) return line.ToString();
            line.Append(nextChar);
        }

        return line.Length == 0 ? null : line.ToString();
    }