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using Split() Method to separate out data into Array

Posted on 2009-04-06
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Last Modified: 2013-12-17
I have a Console application that gets a filename passed as an argument. It then stores that filenames data to an array, gets opened and then read line by line and stored to another array.
I'm currently using the FileStream ReadLine() method to pull out the workstations one by one and store to this Array. The escape sequence is \r\n. However, if I receive a text file whereby the data has delimiters like a semi-colon (;) or commas (,) or whatever, I would like to change the code to allow me to handle these. What other class can I use to Open this file and retrieve and store data to array while handling / splitting out the escape sequences properly?
Thanks Experts,
Wally
static void Main(string[] Args)
        {
            // Do Database Query Here.....
            // This will hold the entire workstation 
            // list that is pulled from the Nodes table
            List<Program> nodeList = new List<Program>();
            string idx = "";
            if (Args.Length >= 1)
            {
                for (int i = 0; i < Args.Length; i++)
                {
                    idx = Args[i];
                    //Console.WriteLine(idx);
                }
            }
 
            string filename = "";
                filename = Args[0];
                filename = filename.ToUpper();
                //Console.WriteLine(clArgs[0]);
                if (File.Exists(filename))
                {
                    FileStream fs = new FileStream(filename, FileMode.Open, FileAccess.Read);
                    using (StreamReader sr = new StreamReader(fs))
                    {
                        string line;
                        while ((line = sr.ReadLine()) != null)
                        {
                            Program node = new Program();
                            node.NodeToPing = line;
                            nodeList.Add(node);
                        }
                    }
                }

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Question by:wally_davis
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3 Comments
 
LVL 5

Expert Comment

by:mrcoolcoder
ID: 24082992
What I do when I want to allow multiple escape characters is I use replace.

So "," will become ";"
And ":" will become ";"
And So on...

Then you just run your split function.
0
 

Author Comment

by:wally_davis
ID: 24083040
What I'm looking for is some help on how to modify the code above since there is no .Replace() Method within the StreamReader.
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LVL 18

Accepted Solution

by:
philipjonathan earned 500 total points
ID: 24083203
Try changing lines 24-33 to:

using (StreamReader sr = new StreamReader(fs))
{
  string data = sr.ReadToEnd();
  string[] nodeDatas = data.Split(new char[] {',', ';', '\r', '\n'});
  foreach (string line in nodeDatas)
  {
    if (!nodeData.Trim().Equals(string.Empty))
    {
      Program node = new Program();
      node.NodeToPing = line;
      nodeList.Add(node);
    }
  }
}

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