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lib/ACH/Parser.pm  view on Meta::CPAN

  # Open the file
  if ( open(INPUT, "$file") ) {}
  else { print "Error:  Couldn't open file $file\n"; die; }

  # Get the file contents
  my @data = <INPUT>;
  my $dataline = $data[0];
  my $pos = 0;
  
  # Loop Through all entries
  while ($pos < length($dataline)) {
    # Get the correct ACH format array and store all parsed data in a hash
    my $desc = substr($dataline, $pos, 1);
    my @dataArray = [];

    # Make sure file descriptor is valid
    if ($desc != 1 and $desc != 5 and $desc != 6 and $desc != 7 and $desc != 8 and $desc != 9) {
      die "File Error:  Code: $desc\n";
    }
    
    # Iterate through the appropriate ACH file format array and parse the data
    for (my $x=0; $x < @{$self->{_achFormats}{$desc}}; $x++) {
	  my $field = ${$self->{_achFormats}{$desc}}[$x];
            
	  # Get the field name and length
	  my ($field_name, $field_length);
	  while ( my ($key, $value) = each(%$field) ) { $field_name = $key;  $field_length = $value; }

      # Get the ACH Data from the file
      my $part = substr($dataline, $pos, $field_length);  chomp $part;
      my %hash = ($field_name => $part);
      $dataArray[$x] = \%hash;
      $pos += $field_length;    
    }
    
    # Save data to list
    @{$self->{_achData}}[scalar @{$self->{_achData}}] = \@dataArray; 
  }
  
  # Close the Input file
  close (INPUT);
}