Re: [gambit-list] Macro to use “λ” character as “lambda” in R5RS Scheme?
Not really gambit specific but it works like this: #!/usr/local/Gambit-C/bin/scheme-r5rs -:s On Mon, Oct 27, 2014 at 1:49 PM, Roy Pfund <roypfund@gmail.com> wrote:
The shebang "#!/usr/bin/env scheme-r5rs -:s" doesn't even call Gambit, an gives the following error:
/usr/bin/env: scheme-r5rs -:s: No such file or directory
On Sun, Oct 26, 2014 at 9:31 PM, James Baker <cycle.code.media@gmail.com> wrote:
I dont use them but I think for memory scheme-r5rs and the like only set case sensitivity and keyword preferences, it wont make syntax-rules / syntax-case available to you for that you would still need tell it to load eg.
scheme-r5rs -:s
On Mon, Oct 27, 2014 at 1:20 PM, Roy Pfund <roypfund@gmail.com> wrote:
I'm using scheme-r5rs not the regular gsi and your solution doesn't work;
So does anyone know how I can set "standard Scheme mode" just like the command line option "-:s" from within a executable scheme file??
On Sun, Oct 26, 2014 at 4:58 PM, James Baker <cycle.code.media@gmail.com
wrote:
I know its not exactly what you asked for, but I found this gambit specific trick recently.
(##include "~~/lib/_gambit#.scm") (define-runtime-syntax λ (##make-alias-syntax '##lambda))
Which you can use as normal:
(define square (λ (x) (* x x))) square #<procedure #2 square> (square 42) 1764
James
On Mon, Oct 27, 2014 at 5:20 AM, Roy Pfund <roypfund@gmail.com> wrote:
From http://stackoverflow.com/a/26570837/144020 I tried the following:
(define-syntax λ (syntax-rules () ((_ param body ...) (lambda param body ...))))
It works! but ONLY IF you call the script from the gsi not with
#!/usr/bin/env scheme-r5rs
Does anyone know I can set the command line OPTION s|S "set standard Scheme mode" from within a scheme file??
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James Baker