using System;
using System.Text.RegularExpressions;
public class Example
{
public static void Main()
{
string pattern = @"(?s)PROC DATE:\s*(?P<date>\w+)(?:(?!RID:\s+RSS-\d|ACQT).)*ACQT(?:(?!RID:\s+RSS-\d).)*T PUR\s+(?P<num>\d[.,\d]*)\s+(?P<val>\d[\d,]*)";
string input = @"RID: RSS-130 SERVICE PAGE: 2
REPORTING FOR: 100019912 SSSE INTSERVICE PROC DATE: 15SEP21
ROLLUP FOR: 100076212 SSSE REPORT REPORT DATE: 15SEP21
ENTITY: 1000208212 SSSE
T PUR 70 1,346,001 1,348.5
ACQT
PUR
SAME 10SEP21 120 12,263,518 19,48.5
T PUR 120 12,263,518 19,48.5";
RegexOptions options = RegexOptions.Multiline;
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