Combine lines text file (with criteria)

Steef

Dear all,

First of all, I am pretty new to C#, but learning quick! :)

At this point I am working on a simple console app.
This app should read through a text file, and when it finds a line that not starts with a certain code (6 options, like ":20:" or ":86:"), it should go one (or more) line back and appends the line without the code to the line with the code.

Example:

input:
:86:1234567890
ABCD
EFGH

output:
:86:1234567890ABCDEFGH

Can someone point me in the correct direction, or maybe post some code?

Thanks in advance!!

2 Replies

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Steef18y ago
Thank you very very much! This works perfectly!
0
Alan18y ago
Try this (requires .NET 2.0 or later):

using System;
using System.IO;
using System.Collections.Generic;

class Program
{
    static void Main()
    {
        string[] input = File.ReadAllLines("steef.txt");
        List output = new List();
        string temp = "";
        foreach (string line in input)
        {
            if (line.StartsWith(":20:") || line.StartsWith(":86:"))
            {
               if (temp != "") output.Add(temp);
               temp = line;
            }
            else if (line != "")
            {
               temp += line;
            }
        }
        output.Add(temp);

        // check it worked
        foreach(string line in output)
        {
            Console.WriteLine(line);
        }
        Console.ReadKey();
    }
}
0