using System;
using System.Text.RegularExpressions;
public class Example
{
public static void Main()
{
string pattern = @"""(?:[^""]|"")*""|[^,\n]+|(?=,)(?<=,)|^|(?<=,)$";
string input = @"record 1:field 1,record 1:field 2,record 1:field 3
record 2:field 1,record 2:field 2,record 2:field 3
""quoted field"",""quoted field, with comma"", ""whitespace before & affer quote"" ,""new
line in field"",""double quotes ""in"" field"",""double quotes in field "","" with comma""
,,,<- empty fields at beging, , ,<-whitespace fields,empty fields at end ->,,
^empty records";
RegexOptions options = RegexOptions.Multiline | RegexOptions.Singleline;
foreach (Match m in Regex.Matches(input, pattern, options))
{
Console.WriteLine("'{0}' found at index {1}.", m.Value, m.Index);
}
}
}
Please keep in mind that these code samples are automatically generated and are not guaranteed to work. If you find any syntax errors, feel free to submit a bug report. For a full regex reference for C#, please visit: https://msdn.microsoft.com/en-us/library/system.text.regularexpressions.regex(v=vs.110).aspx