Re: ROT13 and alike

[Hans Hagen <pragma@wxs.nl>]

At 01:50 PM 2/18/01 +0100, Giuseppe Bilotta wrote:
>Taco Hoekwater wrote:
>
>> Here is a solution that is just a little bit more robust than
>> your one: it obeys spaces and is properly nested. It also allows
>> primitives in the input string (\par, for example); and \unexpanded
>> macros that dont have an argument.
>> 
>> Note that this is a hacker's version: you can't use this to process
>> arbitrary text: macro's that expand into something and e.g. accents
>> won't work!
>> 
>> In general, it is very hard to do this kind of stuff safely in TeX.
>> A verbatim module would probably be the best solution. OTOH, my
>> approach allows:
>> 
>> \section{\ROT{A section}}
>> 
>[snip code]
>
>Well, that's an extremely instructive example!
>
>I gave a look at the verbatim approach, and got to the
>attached files.
>
>They still don't handle accents etc; Hans, how to make
>a verbatim that obeys cs's?

They will if you have an encoding that makes char>127 active

Hans
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