rot13 does not seems to work

[Paul Dufresne]

Here is my results at trying rot13.
I expect rot13 to cipher the string (rotate each letter of the string
for 13 positions in the alphabet).
==========
G:\slate>slate.fas
Slate 1> 'src/init.slate' fileIn.
Hi, there!
Nil
Slate 2> 'try' rot13.

*** - SYSTEM::STORE-CHAR: argument should be a character, not 103

G:\slate>slate.fas
Slate 1> 'src/init.slate' fileIn.
Hi, there!
Nil
Slate 2> 'COU' rot13.
Backtrace
---------
Method doWithIndex: @ primitive
Method whileTrue: @ primitive
Method value @ primitive
Block @ line 54 in src/method.slate
Method value: @ primitive
Method value:value: @ primitive
Block @ line 147 in src/string.slate
Method value @ primitive
---------
Error: A method named 'toUppercase' was not found for the arguments: (99)
Return to the Slate top level?  (y/n)
Please answer with y or n : n

*** - SYSTEM::%STRUCTURE-REF: NIL is not a structure of type WM-OBJECT
===========================

What I try and is working fine, I don't post here.
So don't suppose nothing goes fine with Slate! :-)




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