Am 03.07.16 um 13:22 schrieb Marko Rauhamaa:
Christian Gollwitzer <aurio...@gmx.de>:
Am 03.07.16 um 13:01 schrieb Marko Rauhamaa:
Alain Ketterlin <al...@universite-de-strasbourg.fr.invalid>:
It would be very confusing to have a variable named ∇f, as confusing
as naming a variable a+b or √x.
Scheme allows *any* characters whatsoever in identifiers.
Parentheses?
Yes.
Hint: Python allows *any* characters whatsoever in strings.
My knowledge of Scheme is rusty. How do you do that? Consider
(define x 'hello)
then the x is the identifier, isn't it? How can you include a
metacharacter like space, ', or ( in it? I'm using
https://repl.it/languages/scheme to try it out.
Another language which allows any characters in identifiers is Tcl. Here
you can quote identifiers:
set {a b} c
creates a variable "a b" with a space in it, because there is no
distinction between quoted/unquoted. Metacharacters can be included by
\-escapes. How does that work in Scheme?
Christian
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