/overboard/ - Overboard

File: Screenshot_at_2023-06-21_0(...).png (10.15 KiB) [Draw]

Scheme syntax rule question. Anonymous 06/21/23(Wed)09:57:35 No. fg-6XYD26EZ

▶

Report post Hide post Image search » Google Yandex SauceNAO trace.moe

I created a hygienic macro called `fork` that creates a lambda function which chains comparison functions together like this. (fork number? and integer?) -> (lambda (x) (and (number? x) (integer? x))) Or more generally, (fork check1 connector check2) -> (lambda (x) (connector (check1 x) (check2 x))) It can take variable terms and it has the same behavior so that you can write more complicated definitions. The macro I wrote has the same behavior as (fork check1 connector1 check2 connector2 check3) -> (lambda (x) (connector2 (connector1 (check1 x) (check2 x)) (check3 x))) But it defines more lambda functions than that. Pic related is the actual definition. I am wondering whether or not it's possible to write a hygienic definition of the fork macro that takes any number of arguments, but only defines one lambda function. I want to use syntax-case or define-syntax, No defmacro macros. Also the reason I defined it as a macro instead of a function was because `and` and `or` are macros in scheme so you can't pass them to functions as parameters (at least to my knowledge).

Anonymous 08/06/23(Sun)03:05:57 No. fg-LLRVP5JN

▶

Report post Hide post

I think I found out a way to do it that only defines the functions once. (define-syntax fork (syntax-rules () ((_ proc1 connector proc2 ) (lambda (x) (connector (proc1 x) (proc2 x)))) ((_ other other* ... proc1 connector proc2 ) (let ((foo (fork proc1 connector proc2))) (fork other other* ... foo )))))

Anonymous 08/17/23(Thu)00:43:09 No. fg-0JHUKZ9K

▶

Report post Hide post

I just realized I can define syntax rules with accumulators after I accidentally made one. Pretty cool. (define-syntax easy-define-symbols (syntax-rules () ((_ () code ...) (begin code ...)) ((_ ( sym syms ...) code ...) (define-multi (syms ...) code ... (define sym (quote sym) )))))

Anonymous 08/17/23(Thu)00:46:40 No. fg-R6HZATRN

▶

Report post Hide post

>>fg-0JHUKZ9K Now I want to try making a macro with two recursive calls.

File: Welcome_Home_Brother_Charl(...).jpg (98.82 KiB) [Draw]

Anonymous 08/15/23(Tue)19:17:49 No. fb-2TTU8D19

▶

Report post Hide post Image search » Google Yandex SauceNAO trace.moe

> The film stars Marlo Monte as a wrongfully imprisoned man who seeks vengeance upon his transgressors using his prehensile penis Wut?

Anonymous 08/15/23(Tue)19:20:10 No. fb-8MYNF9FE

▶

Report post Hide post

> John Dillermand ("John Penisman","John Willieman" or "John Dongman") is a Danish stop motion animated children's television series about a man and his very long penis.

Anonymous 08/15/23(Tue)19:27:42 No. fb-52DYDV2J

▶

Report post Hide post

https://yewtu.be/watch?v=jm7eY3EcvJw gem

File: 1438206025673.jpg (30.32 KiB) [Draw]

I Love Akari !!4FAUSv8nf. 08/09/23(Wed)03:35:53 No. fb-ATOEZTAI

▶

Report post Hide post Image search » Google Yandex SauceNAO trace.moe

There was this one guy who built a castle on his own for 53 years and when I went inside of it, there were a bunch of signs that had schizo shit. Pretty cool. I didn't get to see the guy who built it though. https://www.youtube.com/watch?v=yYn5YaEPspE https://www.youtube.com/watch?v=nkjmefmTbCs https://www.youtube.com/watch?v=2tCAfJje8cg

File: 1644281465.png (409.03 KiB) [Draw]