I'm coming back to C# after quite a while away from it, but this one is confusing me.

I have a .txt file (strRunnerTXTFile) on my website, and its contents are being read into a variable.

The text file (being read into strRunnerTXTFile) contains this:

"""BrandName"""
No
"""Brand\\Runner 1 Front"""
150mm
"""Brand\\Runner 2 Front"""
198mm
"""Brand\\Runner 3 Front"""
230mm
"""Brand\\Runner 4 Front"""

After it is read into the variable, the above code now looks like this:

"""BrandName"""
No
"""Brand\\Runner 1 Front"""
150mm
"""Brand\\Runner 2 Front"""198mm
"""Brand\\Runner 3 Front"""
230mm
"""Brand\\Runner 4 Front"""

The code I'm using to read the file into the variable is this:

WebClient wc = new WebClient();  // create object to use to access web data
byte[] raw = wc.DownloadData(strRunnerTXTFile);  // read data text file into variable
if (raw.Length == 0) { ExitWithError("Could not source data from server, or data file is empty.", 5); }
string webData = System.Text.Encoding.UTF8.GetString(raw);  // convert into usable format

string[] strTXTInput = webData.Split('\n');   // split array into indexes by new line separation
sRunnerSetName = strTXTInput[0].Replace("\"","");
    for (x = 0; x < strTXTInput.Length-1; x  )
    {
        switch (x)
        {
            case 0:
                sRunnerSetName = strTXTInput[x];
                break;
            case 1:
                sFH = strTXTInput[x];
                break;
            case 2:
                sR1 = strTXTInput[x];
                break;
            case 3:
                sH2 = strTXTInput[x];
                break;
            case 4:
                sR2 = strTXTInput[x];
                break;
            case 5:
                sH3 = strTXTInput[x];
                break;
            case 6:
                sR3 = strTXTInput[x];
                break;
            case 7:
                sH4 = strTXTInput[x];
                break;
            case 8:
                sR4 = strTXTInput[x];
                break;
            case 9:
                sH5 = strTXTInput[x];
                break;
            case 10:
                sR5 = strTXTInput[x];
                break;
            default:
                break;
        }
    }

createOutputString(RunnerSetFile);

And then later on ...

public static void createOutputString(string RunnerSetFile)
    {
        List<Item> list = new List<Item>
        {
            new Item { Description = sRunnerSetName, SortOrder = iRunnerSetName },
            new Item { Description = sFH, SortOrder = iFH },
            new Item { Description = sR1, SortOrder = iR1 },
            new Item { Description = sH2, SortOrder = iH2 },
            new Item { Description = sR2, SortOrder = iR2 },
            new Item { Description = sH3, SortOrder = iH3 },
            new Item { Description = sR3, SortOrder = iR3 },
            new Item { Description = sH4, SortOrder = iH4 },
            new Item { Description = sR4, SortOrder = iR4 },
            new Item { Description = sH5, SortOrder = iH5 },
            new Item { Description = sR5, SortOrder = iR5 }
        };

        list = list.OrderBy(x => x.SortOrder).ToList();
    }

It seems to be something in the final line there, where it sorts the order. But for the life of me, I cannot figure out why it's combining the two lines. Hopefully one of you can figure this out for me?

CodePudding user response：

quick solution: Look for \n after each two """, Add one if you don't find one.

CodePudding user response：

It is better not to use the switch case structure by index for parsing this format. In a good way, it is better to replace 3 quotes with some unique character that is guaranteed not to be present in the text. In the example below, we accumulate characters until we encounter a key character.

public sealed class BrandInfo
{
    public string Name { get; set; }

    public string About { get; set; }

    public override string ToString()
    {
        return $"{Name};{About}";
    }
}

internal static class BrandHelper
{
    public static void Parse(string webData)
    {
        var data = webData.Replace("\"\"\"", "\"");
        var startBrand = false;
        BrandInfo brand = null;
        var brandList = new List<BrandInfo>();
        var sb = new StringBuilder(100);
        for (int i = 0; i < data.Length; i  )
        {
            var c = data[i];
            switch (c)
            {
                case '"':
                    if (startBrand)
                    {
                        startBrand = false;
                        if (brand != null)
                        {
                            brand.Name = sb.ToString();
                            sb.Clear();
                        }
                    }
                    else
                    {
                        if (brand != null)
                        {
                            brand.About = sb.ToString();
                            sb.Clear();
                            brandList.Add(brand);
                        }

                        startBrand = true;
                        brand = new BrandInfo();
                    }
                    break;
                case '\n':
                case '\r':
                    break;
                default:

                    sb.Append(c);
                    break;
            }
        }

        var orders = brandList.OrderBy(x => x.About);
        foreach (var item in orders)
        {
            Console.WriteLine(item);
        }
        
    }
}