pace@micomvax.UUCP (01/05/84)
I am trying to discover how to rotate jokes which will be subsequently
posted to the net.
At the moment all I know how to do is unrotate jokes while reading them
using the readnews command.
Any advice or helpful hints greatly appreciated!
cheers,
Scott Pace
Micom Co., Montreal
!philabs!micomvax!pacerpw3@fortune.UUCP (01/13/84)
#R:micomvax:-23100:fortune:12300011:000:920
fortune!rpw3 Jan 12 22:35:00 1984
The easiest way is with 'tr' and 'vi'. Take the following sentence:
Q: Here is a test sentence to try "rot" out on. Hey!
Now put your cursor on the line (in 'vi') and type "!!tr a-zAZ a-zaB-XA"
(copied from another newsgroup, where it was noted non-Berkeley 'tr' needs
[a-z][A-Z]) and the line will magically disappear and come back as
R: Ifsf jt b uftu tfoufodf up usz "spu" pvu po. Ifz!
That is a "rot 1" (or maybe -1). I leave it to you to figure out the letters
for rot 13 (you want to decode it with rot -13).
In any case, when you have scripts ('rot+' and 'rot-' ?) you can pipe through,
compose in 'vi' with "!!rot+" (or "!}rot+" for a paragraph, and read it
(from notes) by "saving" it in "|rot-". (And I may have + and - all wrong.)
Rob Warnock
UUCP: {sri-unix,amd70,hpda,harpo,ihnp4,allegra}!fortune!rpw3
DDD: (415)595-8444
USPS: Fortune Systems Corp, 101 Twin Dolphins Drive, Redwood City, CA 94065guy@rlgvax.UUCP (Guy Harris) (01/13/84)
Now put your cursor on the line (in 'vi') and type
"!!tr a-zAZ a-zaB-XA" (copied from another newsgroup, where
it was noted non-Berkeley 'tr' needs [a-z][A-Z]) and the line
will magically disappear and come back as...
1) If you don't have an editor which can take text, run it through a filter,
and stick the output of the filter back into the file, just edit the file
normally and run it through the filter; if you want to rotate only part of
it, do some cut and paste work on the original and the filtered output.
2) I suspect "non-Berkeley 'tr'" should translate as "USG UNIX 'tr'", i.e.
System III and System V 'tr', among others. The original V7 'tr' -
and possibly the original V6 'tr' - may have ran as the Berkeley one does.
(There *are* news sites out there on PDP-11s running V7!)
That is a "rot 1" (or maybe -1). I leave it to you to figure out
the letters for rot 13 (you want to decode it with rot -13). ...
(And I may have + and - all wrong.)
Since rotations are modulo 26, rot 13 and rot -13 are the same, which is why
13 is the proper rotation for jokes (so nobody has to figure out the
direction of the rotation and nobody has to have two rotators). The
proper translation for rot 13 is:
tr "[a-zA-Z]" "[n-za-mN-ZA-M]" # for USG systems
tr "a-zA-Z" "n-za-mN-ZA-M" # for non-USG systems
Guy Harris
{seismo,ihnp4,allegra}!rlgvax!guy