The if command is not performed as desire. Maybe due to non local variables?

Question

I need to split two different types of records in a Perl program. Every record comes with a distinct code (ZBKPF_W and ZBUS2081_W) so they have different processing depending on that.

The information comes from parsing the file name and at the end I should get the right command based on the right parsed fields. However, the if command in Perl apparently does not obey it and in half of the cases, I get the wrong data.

Please allow me to show the process: 2 different types of documents to process that need to be split:

   # get info from filename and process each file
   # BO-CC-FY-DOCID-KOFAX#.PDF
   # ZBKPF_W-DE10-2020-1900000001-00034113.PDF and
   # ZBUS2081_W-DE10-2019-5106000000-00034114.PDF 
   ( $fileindex, $filetype) = split( '\.', $dir[i] ); 
   $fname = $dir[i]; 
   $BO = "";
   $CCode = "";
   $FY = "";
   $DocNo = "";
   $KofaxNo = "";
   $CCDocNoFY = "";
   $CCFYDocNo = "";   
   
   # Get the index values from filename 
   ( $BO, $CCode, $FY, $DocNo, $KofaxNo ) = split( '\-', $fileindex );
          
   if ( $BO == "ZBKPF_W" ) {
     $R3_SAP_OBJ = "ZBKPF_W";
     $CCDocNoFY = $CCode.$DocNo.$FY;
     $CCFYDocNo = $CCode.$FY.$DocNo; 
   }
   else {
     if ( $BO == "ZBUS2081_W" ) {
       $R3_SAP_OBJ = "ZBUS2081_W";
       $CCDocNoFY = $DocNo.$FY;
       $CCFYDocNo = $FY.$DocNo;
     }
   }

So, at the end, all the records look like ZBUS2081_W Results:

$R3_SAP_OBJ = "ZBBUS2081_W"
$CCDocNoFY = $DocNo.$FY
$CCFYDocNo = $FY.$DocNo

always provides the else of the if command.

The correct results should be:

For ZBKPF_W-DE10-2020-1900000001-00034113.PDF
$R3_SAP_OBJ = "ZBKPF_W"
$CCDocNoFY = "DE1019000000012020"
$CCFYDocNo = "DE1020201900000001"
For ZBUS2081_W-DE10-2019-5106000000-00034114.PDF
$R3_SAP_OBJ = "ZBUS2081_W"
$CCDocNoFY = "51060000002019"
$CCFYDocNo = "20195106000000"

I have tried to use nested IF, ELSEIF and also using local variables with MY Same results... I don't usually prefer Perl, so I far from an expert but this is a requirement for ArchiveLink, so I need it to run smoothly.

Please, if you have an idea why could be the root cause of the issue, I will appreciate that.

Answer 1

== compares numbers in Perl. Use eq to compare strings.

When using a string starting with Z, it's coerced to number 0, so the first condition is always true.

See perlop for more details.