On Fri, Nov 2, 2012 at 7:48 PM, Laurent <laurent.ors...@gmail.com> wrote:
> > > You're using just `write', so you need some whitespace between items: >> >> > (with-input-from-string >> (with-output-to-string (λ() (write 'x) (write 'y))) >> read) >> 'xy >> > > > > Wow, thanks a lot, I would have never thought about that. I thought that > 'write' was sending data, not mere characters. > Writing a space after each output indeed solves the problem. > For reference, one needs to use (printf " ") or (display " ") but not (write " ") or (print " "), because, IIUC, 'write' does send data, but does not add delimiters to the data if there are none yet. I.e., a string like " " is self-delimited, a list (a b c) is also self-delimited, but symbols and numbers are not. This means that the delimiter must be added by hand. 'display' sends a space to the stream, whereas 'write' sends a self-delimited data string " ". Laurent
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