using System;
using System.Text.RegularExpressions;
public class Example
{
public static void Main()
{
string pattern = @"(?m)^([^|\r\n]*)[\r\n]*\|[\r\n]*([^|\r\n]*)[\r\n]*\|[\r\n]*([^|\r\n]*)[\r\n]*\|[\r\n]*";
string substitution = @"$1|$2|$3|\n";
string input = @"Record 1|
Data|Commments|
Record 2|Some data|Notes|
Record 3|Data|
|
Record 4|Some data|Comments|
Record 5|Data|
|
Record 6|Some Data|Some Comments|";
Regex regex = new Regex(pattern);
string result = regex.Replace(input, substitution);
}
}
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