I’ve sometimes wanted a quick ‘range’ equivalent in common lisp. There are likely other or easier ways to do it but this way is mine.
Simple example to make a list for use:
(loop for i from 1 to 5 collect i)
Easy, runs from 1 to 5, makes a list, its not lazy.. I don’t think, but maybe there is a better generator.
Say if only evens were desired:
(loop for i from 1 to 10 do (when (evenp i)) collect i)note: that none of this is lazy, its not ideal.
There used to be another github library titled “Generators The Way I Want Them Generated” which looks really cool but the account ahs been deleted. I have a clone of a the source on quicklisp/ultralisp https://github.com/wmealing/gtwiwtg although it seems that mr cbeo (the original owner) account has terminated.
The other alternative is ‘snakes’ which is available from https://github.com/BnMcGn/snakes.
When I get around to needing the lazyness of them, i’ll put some demos here.
https://github.com/BnMcGn/snakes
https://github.com/wmealing/gtwiwtg (not original)