in reply to Re^2: Non-Formula based Text Encoding - with Compression
in thread Non-Formula based Text Encoding - with Compression

You all are just showing everyone you really don't understand Perl that well.
split / */

Cough… cough…

For my part, I liked jeffa’s version. Comments are always better as Pod. I’m not quite sure what “non-formula” means in this context. Is it a technical term related to encryption (not my forte)?

Replies are listed 'Best First'.
Re^4: Non-Formula based Text Encoding - with Compression
by GotToBTru (Prior) on Apr 16, 2015 at 18:43 UTC

    My guess is this is "non-formula" in that there is a lookup instead of evaluating a function that uses the plaintext contents. Excessively simple example of Caesar cipher:

    $plaintext = 'Attack at dawn!';
# formula - very simple encoding function
foreach $chr (split //,$plaintext) {
  $ciphertext .= chr(ord($chr)+1)
}
print $ciphertext,"\n";
$ciphertext = '';


# non-formula
# only need to do this next step once, then store hash somewhere to us
+e when encoding
foreach $letter ('A'..'Z','a'..'z',' ','!') {
  $shifted{$letter} = chr(ord($letter)+1)
}

foreach $chr(split //,$plaintext) {
  $ciphertext .= $shifted{$chr}
}
print $ciphertext, "\n";

    [download]
    Dum Spiro Spero
[reply]
[d/l]
Re^4: Non-Formula based Text Encoding - with Compression
by Aldebaran (Curate) on Apr 20, 2015 at 07:15 UTC

    How do you get the comments to display when they are in POD format?

[reply]
[reply]
[d/l]
[select]

In Section Cool Uses for Perl