using System;
using System.Text.RegularExpressions;
public class Example
{
public static void Main()
{
string pattern = @"\b[A-Za-z2]+(?=\()(?![^']*'!)";
string substitution = @"6";
string input = @"=VLOOKUP($A9,'Summary'!$A$10:$C$30,3,FALSE)
=IFERROR((C10/B10),""N/A"")
='New Chart Data (Date)'!L70
=IFERROR((C10/B10),Len(E30))
='New Chart Data(Date)'!L70 + (Len(5)&ROW())
=INDEX(C$3:C$12,MATCH(9^99,IF(MAX(IF(ABS($B$3:$B$12-$B18)=MIN(IF($A$3:$A$12=$A18,ABS($B$3:$B$12-$B18),999)),B$3:B$12))=IF(ABS($B$3:$B$12-$B18)=MIN(IF($A$3:$A$12=$A18,ABS($B$3:$B$12-$B18),999)),B$3:B$12),IF(ABS($B$3:$B$12-$B18)=MIN(IF($A$3:$A$12=$A18,ABS($B$3:$B$12-$B18),999)),C$3:C$12))))";
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