How to add eliminate new line character from a byte in c#

Question

I have a code as mentioned below. I have a "inputText" variable which contains the string as well as some new line characters. Just assume my variable inputText contains something like "Test\nTest". So when I get final output I need to remove \n new line char from the string.

currentText =
        Encoding.UTF8.GetString(Encoding.Convert(
            Encoding.Default,
            Encoding.UTF8,
            Encoding.Default.GetBytes(inputText)));

If in case the string contains "\\n" then it should not do anything. — Sachin jeev, Jul 01 '16 at 10:55
Why is this question tagged as an iText question? The answer has nothing to do with iText! — Bruno Lowagie, Jul 01 '16 at 11:06
This is a very common code snippet that is copied and pasted all over from an iText text extraction sample somewhere but it is wrong and it will break! [In .Net, once you have a string, **you have a string**, and it is Unicode, **always**.](http://stackoverflow.com/a/10191879/231316) — Chris Haas, Jul 01 '16 at 11:13
@Bruno that weird conversion is often seen in iTextSharp text extraction samples. Not the official ones but others, copied on and on without someone asking why it's there. — mkl, Jul 01 '16 at 11:22
To quote Mr. T: *I pity the fools who don't read the official documentation* ;-) — Bruno Lowagie, Jul 01 '16 at 12:10
@Chris I went through the link. What would you suggest for my problem. — Sachin jeev, Jul 01 '16 at 12:20
The code snippet in the question is wrong. Any fixing of mangled strings should be done *before* it becomes a string. — Lasse V. Karlsen, Jul 01 '16 at 12:37
You can either fix the content at the byte level before it becomes a string or you can hack something together once you've got a string. However, the code you posted is pretty much guaranteed to break things and should either just be removed or replaced with just `currentText = inputText`. Don't think of .Net strings in terms of bytes, that's a mistake. You can _ask_ .Net to convert a string into a byte array using a certain encoding but that's a conversion. Without seeing your actual string we can't really help you. — Chris Haas, Jul 01 '16 at 13:31
Chris, I have a code like this `string outputText = PdfTextExtractor.GetTextFromPage(pdfReader, intPage + 1, strategy);` . How can I eliminate the new line char from the result? — Sachin jeev, Jul 05 '16 at 10:52

score 3 · Accepted Answer · answered Jul 01 '16 at 10:56

You can always remove '\n's from the currentText string using Replace, but if you would rather remove '\n' from the array of bytes coming into Convert method, before constructing a string object, you can filter it like this:

currentText = Encoding.UTF8.GetString(Encoding.Convert(
    Encoding.Default,
    Encoding.UTF8,
    Encoding.Default
        .GetBytes(inputText)
        .Where(b => b != '\n')
        .ToArray()
    )
);

How to add eliminate new line character from a byte in c#

1 Answers1