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HL7 (text) File Modification

Q: Good morning, thank you again for taking my call! Please find the before and after test files attached.

1. You’ll see that the FT1 segment, specifically the FT1.25 section, was moved to FT1.7 section. (Each section is delimited by a pipe “|”.)
2. We also added “CG” (without quotes) to the FT1.6 section. I’ve attached an image to visualize as well.

I’m urgently trying to get this solution in place! Thank you for your help!!!!

A: Summary of what we need to do:

1. Load the HL7 (text) File.
2. Iterate through the lines in the HL7 File.
3. Search for a line that starts with ‘FT1|’.
4. Make the requested adjustments.
5. Save the HL7 file different from the Source.

We created a Pascal Script to achieve this (v2021.7.31.0 or higher is needed for this script). Let’s start.

1) Please add a Source and a File Filter for the .HL7 files you want to adjust
2) Add the following Pascal Script as Destination, don’t forget to adjust the ctOutputPath const ( must end with a \ ).

Var
  iList: Integer;
  tmpEntry: String;
  tmpError: String;
  tmpField: String;
  tmpFile : String;
  tmpList: TStringList;
  tmpEntryList: TStringList;
Const
  ctOutputPath = 'C:\Test\IN_HL7\Out\';
Begin
  psExitCode:= 0;
  // ... add your code here
  tmpFile := psFilePath + psFileName;
  tmpList := TStringList.Create;
  Try
    Try
      tmpList.LoadFromFile(tmpFile);
      // Iterate
      For iList := 0 to (tmpList.Count-1) Do
      Begin
        tmpEntry := tmpList.Strings[iList];
        If Pos('FT1|', tmpEntry) <> 0 Then
        Begin
          tmpEntryList := psDelimitedTextAsList('|', tmpEntry);
          If Assigned(tmpEntryList) Then
          Begin
            tmpEntryList.Delimiter := '|';
            tmpEntryList.StrictDelimiter := True;
            tmpEntryList.Quotechar := #0;
            // 0 indexed
            If tmpEntryList.Count >= 25 Then
            Begin
              tmpEntryList.Strings[6] := 'CG';
              tmpEntryList.Strings[7] := tmpEntryList.Strings[25];
              tmpEntryList.Strings[25] := ''
              tmpList.Strings[iList] := tmpEntryList.DelimitedText + '|';
              // Save To File
              tmpError := psSaveListToFile(tmpList, ctOutputPath + psFileName, False);
              if tmpError = '' Then
              begin
                psExitCode := 1;
                psLogWrite(1, '', 'Saved adjusted file to: ' + ctOutputPath + psFileName);
              End
              Else
                psLogWrite(1, '', tmpError);
            End Else
            Begin
              psLogWrite(1, '', 'Field Count error of: ' + tmpEntryList.DelimitedText);
            End;
            // Free
            tmpEntryList.Free;
            // Break
            Break;
          End;
        End;
      End;
    Except
      psLogWrite(1, '', 'Error loading file: ' + tmpFile);
    End;
  Finally
    tmpList.Free;
  End;
End.

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