Compare and ignore text strings

[Chris_1013]

I don't like posting queries like this as I feel its too specific to my own needs, but I'm kinda stuck and would appreciate the help.

I have this script:

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; ----------------------------------------------------------------------------
;
; AutoIt Version: 3.0.101
; Language:       English
; Platform:       Win9x / NT
; Author:         Chris Stoneham
;
; Script Function:
;   Produce list of groups in batch file with syntax for NET GROUP command
;   Produce list of groups and members (comma and | delimited)
;
; ----------------------------------------------------------------------------

Global $inputFile="TEMP_ndsgroups.txt"
Global $outputFile="groups_memberslist.bat"
Global $output2File="populate_groups.bat"
Global $members=""

If MsgBox(4100,"Groups List","This script scans Novell for groups, then produces two output files;" & @LF & @LF &_
$output2File & @TAB & @TAB & "a batch file for creation of groups on Windows" & @LF &_
$outputFile & @TAB & "a list of groups and members (comma and | delimited)" & @LF & @LF & "Do you want to proceed?") = 6 Then


   If FileExists($inputFile) Then

      If MsgBox(4100,"File Conflict!",$inputFile & " already exists. Do you wish to use this?" & @LF & @LF &_
         "Press Yes to use this file, or No to over-write it") = 7 Then;NO
         FileDelete($inputFile)
        ;run nlist command to output file (nlist group show member)
         SplashTextOn("Processing...",@LF & "Exporting Novell groups, please wait",400,100)
         RunWait(@ComSpec & " /c nlist group show member > " & $inputFile,@ScriptDir,@SW_HIDE)
      EndIf
   Else
      SplashTextOn("Processing...",@LF & "Exporting Novell groups, please wait",400,100)
      RunWait(@ComSpec & " /c nlist group show member > " & $inputFile,@ScriptDir,@SW_HIDE)
   EndIf
   
   SplashTextOn("Processing...",@LF & "Creating output files, please wait",400,100)
   
   OpenFiles()
   
   FileWriteLine($o2File,"echo This batch file will create groups on Windows")
   FileWriteLine($o2File,"pause")
   
   FileWriteLine($oFile,"echo This batch file will populate groups on Windows")
   FileWriteLine($oFile,"pause")
   
   While 1
     $line=FileReadLine($iFile)
     If @error = -1 Then ExitLoop
     If StringInStr($line,"Name: ") > 0 Then
         If $members <> "" Then
           ;$members=StringTrimRight($members,1)
            FileWriteLine($oFile,$members & "/ADD /DOMAIN")
            $members=""
         EndIf
         $groupname=StringTrimLeft($line,6)
         FileWrite($oFile,"NET GROUP " & $groupname & " ")
         FileWriteLine($o2File,"NET GROUP " & $groupname & " /ADD /DOMAIN");this line generates NET syntax for creating groups
      ElseIf StringInStr($line,"Member: ") > 0 Then
         $member=StringReplace($line,"Member: ","~")
         $member=StringTrimLeft($member,2)
         $members=$member & " " & $members
      EndIf
   Wend
   
   SplashOff()
   
   MsgBox(4160,"Finished",$outputfile & " and " & $output2File & " have been created. Please check for accuracy.")
     
EndIf


Func OpenFiles()
   Global $iFile
   Global $oFile
   Global $o2File
   
   $iFile=FileOpen($inputFile,0)
   
  ;Check if file opened for writing OK
   If $iFile = -1 Then
      MsgBox(0, "Error", "Unable to open Input file.")
      Exit
   EndIf
   
   $oFile=FileOpen($outputFile,2)
   
  ;Check if file opened for writing OK
   If $oFile = -1 Then
      MsgBox(0, "Error", "Unable to open First Output file.")
      Exit
   EndIf
   
   $o2File=FileOpen($output2File,2)
   
  ;Check if file opened for writing OK
   If $o2File = -1 Then
      MsgBox(0, "Error", "Unable to open Second Output file.")
      Exit
   EndIf
EndFunc

which parses a file in this format:

Name: GROUP1
    Member: USER1
    Member: USER2
    Member: USER3
Name: GROUP2
    Member: USER4
    Member: USER5
    Member: USER6

What I need is a way of setting up a kind of 'ignore list' of group names and if the name is in the list it doesn't get written to the output file.

Can anyone give me any pointers in the right direction?