chromatopelma/csc/loop.csc, branch mainPartial r7rs implementation with a focus on ease of implementation and a reusable library. Work in progress.https://code.roseh.moe/chromatopelma/atom/csc/loop.csc?h=main2022-08-02T02:35:19ZModify the project structure.2022-08-02T02:35:19ZRose Hogensonrhogenson@posteo.net2022-08-02T02:35:19Zurn:sha1:acc561366f3fe6ec0377103f52ef0f7e923711c9
Now the lib directory contains what will eventually end up on the
user's /usr/lib/csc. When I write make install, it will copy all of
the .csc files from lib into the destination lib directory. This means I
can start working on the standard library in lib/scheme.
Slightly improve loop.2022-07-26T03:52:39ZRose Hogensonrhogenson@posteo.net2022-07-26T03:52:39Zurn:sha1:f4cbcfc5f0a0d2a8a6d98f77e17a735177bb913a
The advantage to this approach is that the user can modify the loop
variables and the variables will be stepped as expected, e.g.
(loop for i from 1 to 10
do (set! i (+ 1 i))
collect i)
should return '(2 4 6 8 10).
Fix a bug in loop with nested collect statements.2022-07-25T02:07:17ZRose Hogensonrhogenson@posteo.net2022-07-25T02:07:17Zurn:sha1:192ab9c4e21bab8c08a640b349fa9630a9a672dfImprove the loop macro collect statement.2022-07-24T19:52:21ZRose Hogensonrhogenson@posteo.net2022-07-24T19:52:21Zurn:sha1:c6b74224fe669bc9d180a409ad13ed269631b316
Now you can use multiple collect statements and they will all accumulate
into the same variable. I think in common lisp you could collect into
the same variable even with collect x into, but it's pretty unclear to
me how to do that in Scheme. How would we know that they are the
same variable?
Add a diff library.2022-07-03T21:37:10ZRose Hogensonrhogenson@posteo.net2022-07-03T21:37:10Zurn:sha1:bcb098e8eb18637b6999789585a38ff9168de9d5
I was hesitant to add a diff library, but it was surprisingly easy. A
straightforward application of dynamic programming.
Improve CPS.2022-06-28T22:58:36ZRose Hogensonrhogenson@posteo.net2022-06-28T22:58:36Zurn:sha1:fed28363fb60266c030a0f6b30d5a9d697774ee0
Goodbye soup. Thanks to "Compiling with Continuations" by Appel.
Nitpick on loop style.2022-01-25T17:24:50ZRose Hogensonrhogenson@posteo.net2022-01-25T17:24:50Zurn:sha1:1dd8b1f6eaf611cf5525065aa18f20baa1ada5f3Use an exception for loop return.2022-01-25T17:17:01ZRose Hogensonrhogenson@posteo.net2022-01-25T17:17:01Zurn:sha1:874ebc4daeda9c8f9fe3c35201be43da57003fbd
This makes everything a lot easier, as it handles nested loops
automatically. My brain wave was storing the returned values in a thunk.
Fix the bugs in loop.2022-01-25T16:42:20ZRose Hogensonrhogenson@posteo.net2022-01-25T16:42:20Zurn:sha1:384688fa95abaf0fcbeb1c187b1574ebd6cec456
It works! Sometimes it emits nested loops!
Finish the loop macro.2022-01-25T04:40:33ZRose Hogensonrhogenson@posteo.net2022-01-25T04:40:33Zurn:sha1:c36d2a16e06e2f3ca9c9c3f8d969411bc8c28f01
I also cleaned everything up a lot. Maybe there are still bugs because
the test coverage is awful, but for now I'm happy to be done.