Le vendredi 11 août 2023 à 10:33 +0200, Dr. Arne Babenhauserheide a écrit : > > Jean Abou Samra <j...@abou-samra.fr> writes: > > > This is a known limitation in Guile. Please read > > https://www.gnu.org/software/guile/manual/html_node/Hygiene-and-the-Top_002dLevel.html > > I would not expect that effect from the description, because in > > (define-syntax unhygienic > (syntax-rules () > ((_ the-pair fetch) > (begin > (define the-head (car the-pair)) > (define (the-proc) the-head) > (define (fetch) the-head))))) > > the-head depends on (car the-pair) and the-pair is a variable passed to > the macro. So I would expect this to create different identifiers for > different values of the-pair, just like it creates different identifiers > when instead of (car the-pair) I use fetch (also passed from outside).
You're right, that's confusing. I don't have the time to investigate, though.
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