14:23 <neuro_sys> I wonder if it's possible to simulate lexical scoping with Forth200x Quotations.

14:24 <neuro_sys> In combination with local variables of course.

14:25 <neuro_sys> { some-word } [: some-word ;] execute

14:28 <neuro_sys> Oh it is possible, just need to put the word on the stack! :facepalm:

14:28 <neuro_sys> It's not lexical scoping, but still gets the job done.

14:46 <neuro_sys> Solved the Advent day 2: https://gist.github.com/neuro-sys/724c335893c9036dc42690be6d17b21a

14:47 <neuro_sys> I gave up on stack shuffling, now it's significantly easier to write.

15:05 <veltas> Sounds about right!

15:05 <veltas> What is "Forth200x"?

15:07 <neuro_sys> I think Quotations are part of Forth200x standard (from what crc mentioned yesterday) and is only available in the latest versions of gforth.

15:08 <veltas> Oh I see there is actually a draft of the standard online after all

15:08 <veltas> Why is it not on the pretty website though?

15:08 <veltas> forth-standard.org just has 2012's pdf I think?

15:23 <veltas> Ah yeah they link the 2012 document from the 200x website. This is convoluted

15:34 <neuro_sys> I haven't fully checked the websites yet. Mostly using the pretty website and gforth documentation so far.

15:44 <veltas> Check out http://www.forth200x.org/documents/

16:08 <neuro_sys> Thanks

17:28 <neuro_sys> Here's day 3-1: https://github.com/neuro-sys/advent-of-code-2020/blob/main/day3-1.fs

17:33 <crc> here's mine (both parts): http://forth.works/examples/advent-of-code-2020-day-3.retro.html

17:37 <neuro_sys> And this is the second part: https://github.com/neuro-sys/advent-of-code-2020/blob/main/day3-2.fs

22:22 <veltas> neuro_sys: Do you know about https://forth-standard.org/standard/rationale#rat:facility:BEGIN-STRUCTURE

22:23 <veltas> In that example they show use of FIELD+ which would shorten your code a bit, but also the structure words which could shorten them even more (I'm reading your AoC day2-1 code)

22:27 <veltas> So you could write e.g. begin-structure password:struct field: password:min field: password:max field: password:letter field: password:phrase end-structure

22:36 <veltas> Why does it feel like every AoC would be borderline trivial in awk