CODEWITHSUNDEEP
c#newline
Ammar Alyousfi
Ammar Alyousfi

Reputation: 4382

New line character in c#

I wrote this code to count the number of characters in a text file :

sr.BaseStream.Position = 0;
sr.DiscardBufferedData();
int Ccount = 0;
while (sr.Peek() != -1)
{
  sr.Read();
  Ccount++;
}

but after applying this code to a file contains :

1
2
3
4
5
6
7
8
9
0

Ccount = 30 ???? why? I am using Windows Xp on virtual box on my Macbook the program used : Microsoft Visual Basic 2010.

Upvotes: 10

Views: 58366

Answers (5)

Hjalmar Z
Hjalmar Z

Reputation: 1601

There's an easier way to do this. Make the entire *.txt file to a string array and measure it:

int count = 0;

string[] Text = File.ReadAllLines(/*Path to the file here*/);

for (int i = 0; i < Text.Count(); i++)
{
        count += Text[i].Length;
}

Upvotes: 3

Z .
Z .

Reputation: 12837

The new line is actually 2 separate characters: LF CR (line feed and carriage return). But you would know that if you put a breakpoint in your loop. Now for extra credit, how many bytes that is in unicode?

Upvotes: 2

weston
weston

Reputation: 54811

Windows typically uses \r\n for new line, that is ASCII characters 0x13 and 0x10.

Suggest you prove this to yourself by doing this:

Console.WriteLine("0x{0:x}", sr.Read());

Upvotes: 2

Sina Iravanian
Sina Iravanian

Reputation: 16296

In Windows each new line consists of two characters \r and \n. You have 10 lines, each line have 1 visible characters and 2 new line characters which add up to 30 characters.

If you have created your file in Mac or Unix/Linux you would have gotton different result (20 characters). Because Unix uses only \n and Mac uses only \r for a new line.

You can use some editors (such as Notepad++) to show you new line characters, or even switch between different modes (DOS/Unix/Mac).

Upvotes: 15

RichieHindle
RichieHindle

Reputation: 281835

You're reading one character at a time, and each line contains three characters:

  • one digit
  • one carriage return (\r)
  • one newline (\n)

(Windows uses \r\n as its newline sequence. The fact that you're running in a VM on a Mac doesn't affect that.)

Upvotes: 15

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