Hi Thorsten, > I wonder if there actually is a way to directly print ^@ in PicoLisp for a > "non-printable" hex "00", instead of NIL?
As we see from the previous discussion, this is not an issue of printability. Other control characters may also be non-printable. It is an issue of binary data vs. symbol names. But you can of course print a caret and an at-mark instead of NIL (prin (or (something) "\^@")) > Wrt the application, I just have to deal with fixed length hex strings (!) > where the values at certain offsets carry semantics, conversions are done, > and it's crucial that values stay in that position, the NUL values matter. Yes, but why do you need to convert it to a string? I would process these data all exclusively as a list of numbers, and do the final printing explicitly (if needed at all). This printing may print '0' as "\^@", and also take care of other control characters and non-printable stuff. ☺/ A!ex -- UNSUBSCRIBE: mailto:picolisp@software-lab.de?subject=Unsubscribe
