Thread: Comma delimited File

I am trying to use StreamReader to read a file and to separate the lines that I read by commas (Del).
I think I have managed to Read the file so I will have the Line in the StringLine.

Now is my problem how I will put the values to the Vectors with the ->Add method.
How will I separate out this line by Commas to do this ?


text1,1.1,2.2
text2,3.3,4.4

Code:

StreamReader^ File1 = gcnew StreamReader( "D:\\Files\\OneFile.txt" );

String^ Del = ",";
String^ StringLine;
String^ Text;

List<String^>^ String1 = gcnew List<String^>();
List<double> Value1 = gcnew List<double>();
List<double> Value2 = gcnew List<double>();


		 
while ( File1->Peek() >= 0 )
{

	 StringLine = File1->ReadLine();

	 Day1->Add(      );
	 Value1->Add(    );
	 Value2->Add(    );
}

You can split the string via comma. I don't know the CLI syntax but I do know the C# so I will do that instead.

Code:

string[] commaArray = StringLine.split(',');
for(int i = 0; i < commaArray.length; i++){
    Day1.Add(commaArray[i]);
}//for

So you need to find each comma in order, and copy the value starting from the previous comma, to the newly found comma into the new string.

std::string has a constructor that a string and a range of values to copy over. string::find() will find the first occurrence of character starting from a given index. This can be used to find the position of each comma by setting the starting index to the position of the previous comma.

Anytime. You are welcome.