/usr/bin/modula3_count is in sloccount 2.26-5.1.
This file is owned by root:root, with mode 0o755.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65  | #!/usr/bin/perl -w
# modula3_count - count physical lines of code
# Strips out (* .. *) and counts the rest.
# Usage: modula3_count [-f file] [list_of_files]
#  file: file with a list of files to count (if "-", read list from stdin)
#  list_of_files: list of files to count
#  -f file or list_of_files can be used, or both
$total_sloc = 0;
# Do we have "-f" (read list of files from second argument)?
if (($#ARGV >= 1) && ($ARGV[0] eq "-f")) {
  # Yes, we have -f
  if ($ARGV[1] eq "-") {
    # The list of files is in STDIN
    while (<STDIN>) {
      chomp ($_);
      &count_file ($_);
    }
  } else {
    # The list of files is in the file $ARGV[1]
    open (FILEWITHLIST, $ARGV[1]) || die "Error: Could not open $ARGV[1]\n";
    while (<FILEWITHLIST>) {
      chomp ($_);
      &count_file ($_);
    }
    close FILEWITHLIST;
  }
  shift @ARGV; shift @ARGV;
}
# Process all (remaining) arguments as file names
while ($file = shift @ARGV) {
  &count_file ($file);
}
print "Total:\n";
print "$total_sloc\n";
sub count_file {
  my ($file) = @_;
  my $sloc = 0;
  my $incomment = 0;
  open (FILE, $file);
  while (<FILE>) {
    if ($incomment) {
      if (m/\*\)/) { s/^.*?\*\)//;  $incomment = 0;}
      else { s/.*//; }
    }
    if (!$incomment) {
      s!\(\*.*?\*\)!!g;
      if (m/\(\*/) {
        s/\(\*.*//;
        $incomment = 1;
      }
    }
    if (m/\S/) {$sloc++;}
  }
  print "$sloc $file\n";
  if ($incomment) {print "ERROR: ended in comment in $file\n";}
  $total_sloc += $sloc;
  $sloc = 0;
  $incomment = 0;
  close (FILE);
}
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