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Parsing a comma seperated string of paired numbers with CRLF between data pairs

开发者 https://www.devze.com 2023-04-08 16:27 出处:网络
I am using C#. I have scoured the examples, and tried for hours. This situation is different. I can\'t find a solution.

I am using C#. I have scoured the examples, and tried for hours. This situation is different. I can't find a solution.

I have a long string captured from a device on a serial port. The string's format is:

integer,integerCRLFinteger,integerCRLF

(repeats...). Ends with CRLF.

If you show this string in a RichTextBox it looks like:

2442,6266
7727,2727
6320,272
etc... 

So, again, the string's format is

TextWhichIsAnInteger,TextWhichIsAIntegerCRLF

(repeats).

I would like to get it into two arrays (or lists) of type int. An开发者_如何学Cd, as a bonus, into a 2 column array or list of paired ints. This is driving me nuts. If you can help provide the code, I will be completely grateful and will worship you forever.


Something like this? From the top of my head. Untested. But it should give you the idea.

using System.Collections.Generic;

List<int> aTypes = new List<int>();
List<int> aValues = new List<int>();

string sInput = "1234,5678\n9876,4321\n";
// Split by linebreak.
string[] aLinebreaks = sInput.Split('\n');
foreach(string sNumericString in aLineBreaks)
{
  // Split by comma.
  string[] aNumbers = sNumericString.Split(',');
  aTypes.Add(Convert.ToInt32(aNumbers[0]);
  aValues.Add(Convert.ToInt32(aNumbers[1]);
}

...

aTypes.ToArray();
aValues.ToArray();


Why .Replace then .Split ?

Also, Tuples are great tools to make pairs.

    string myNumbers = "123,456,789\r\n";
    myNumbers += "123,456,789\r\n";
    var delimiters = new[] {"\r\n"};
    string[] lines = myNumbers.Split(delimiters, StringSplitOptions.None);
    var result = new List<Tuple<int, int>>();
    foreach (var line in lines)
    {
        var integers = line.Split(',');
        result.Add(Tuple.Create(Int32.Parse(integers[0]), Int32.Parse(integers[1])));
    }


Does something like this work for you?

string input = "2442,6266\r\n7727,2727\r\n1234,1234";

string[] numberGroup = input.Replace("\r\n", ":").Split(':');
IDictionary<int,int> numberPairs = new Dictionary<int, int>();
foreach(string str in numberGroup)
{
    string[] pair = str.Split(',');
    numberPairs.Add(Convert.ToInt32(pair[0]), Convert.ToInt32(pair[1]));
}


foreach(int key in numberPairs.Keys)
{
    Console.WriteLine("Number Pair: [{0}]:[{1}]", key, numberPairs[key]);
}

//Output:
//Number Pair: [2442]:[6266]
//Number Pair: [7727]:[2727]
//Number Pair: [1234]:[1234]

EDIT

If you don't want duplicates there is this way, like Pano pointed out, but I would tell the splitter to remove empty results so it doesn't blow up on one of the index calls in the convert area.

string input = "2442,6266\r\n7727,2727\r\n1234,1234";

string[] numberGroup = input.Split(new[]{"\r\n"}, StringSplitOptions.RemoveEmptyEntries);
IList<Tuple<int, int>> numberPairs = new List<Tuple<int, int>>();
foreach(string str in numberGroup)
{
    string[] pair = str.Split(',');
    numberPairs.Add(Tuple.Create(Convert.ToInt32(pair[0]), Convert.ToInt32(pair[1])));
}


foreach(Tuple<int,int> item in numberPairs)
{
    Console.WriteLine("Number Pair: [{0}]:[{1}]",item.Item1, item.Item2);
}
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