Pipefish
AdventOfCode2019
Pipefish | AdventOfCode2019 | |
---|---|---|
36 | 10 | |
138 | 9 | |
- | - | |
9.2 | 2.6 | |
3 days ago | 4 months ago | |
Go | Rust | |
MIT License | MIT License |
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.
Pipefish
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Charm 0.4: a different kind of functional language
Charm is a language where Functional-Core/Imperative-Shell is the language paradigm and not just something you can choose to do in Python or Ruby or PHP or JS or your favorite lightweight dynamic language. Because of the sort of use-cases that this implies, it didn't seem suitable to write another Lisp or another ML, so I got to do some completely blank-slate design. This gives us Charm, a functional language which has no pattern-matching, no currying, no monads, no macros, no homoiconicity, nor a mathematically interesting type system — but which does have purity, referential transparency, immutability, multiple dispatch, a touch of lazy evaluation, REPL-oriented development, hotcoding, microservices … and SQL interop because everyone's going to want that.
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Charm 0.4: now with ... stability. And reasons why you should care about it.
I think it's fair to call this a language announcement because although I've been posting here about this project for a loooong time, I've finally gotten to what I'm going to call a "working prototype" as defined here. Charm has a complete core language, it has libraries and tooling, it has some new and awesome features of its own. So … welcome to Charm 0.4! Installation instructions are here. It has a language tutorial/manual/wiki, besides lots of other documentation; people who just want to dive straight in could look at the tutorial Writing an Adventure Game in Charm.
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Programming in Plain Language?
In my own language there is some syntactic flexibility but the only thing that describe pretty table could mean would be the second of the possibilities above; the first would be expressed by describe prettyTable and the third by describe PRETTY, table. This makes it more readable from the point of view of a coder, and who else is going to want to read it, my mom?
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Embedding other languages in Charm: a draft
I've been trying to think of a way of doing this which is simple and consistent and which can be extended by other people, so if someone wanted to embed e.g. Prolog in Charm they could do it without any help from me.
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Lazy Let: A Cheap Way and Easy Way to Add Lazyness
Charm does this for declaration of local constants in functions (there are no local variables in functions). So for example if you wanted to write the Collatz function this way (which you wouldn't, it's just a minimal example) then you could do so without worrying about a computational explosion:
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[OC] Median yearly salaries in the US for all programming languages with more than 200 respondents in the StackOverflow Developer Survey
I guess it's time for me to put aside my exploration of Charm and set up a collaboration with my son the lyricist.
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Global and local variables, a choice of evils
In fact that's how a lot of Charm programs end up getting written, because you want to pass a whole bundle of stuff to the functions. For example.
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What the imperative shell of an Functional Core/Imperative Shell language looks like
No, it's "shell" as in "shell of the code". The idea is that the imperative bits of the language, the bits that do the mutation of state and the IO, can can call lovely pure referentially transparent functions. But functions can't call commands (otherwise by definition they wouldn't be pure). So all your imperative-ness is reduced to about 1% of your code which lives right at the top of your call stack --- the "imperative shell" of your code. See [here](https://github.com/tim-hardcastle/Charm/blob/main/examples/adv.ch) for an example. The "imperative shell" is the main function --- all 13 lines of it --- and everything everywhere else is pure and immutable.
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What are some cool things you've built using your own language?
I'm not sure what counts as cool. It's just dogfooding at the moment. I did a bunch of other languages (only the BASIC and the Forth are up to date with the current version of the language I think), and I did a tiny adventure game (and used it as the basis for a tutorial).
- Langception VIII: Ourobouros — I wrote Forth in Charm again
AdventOfCode2019
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Apple hiring compiler developers for improving Swift / C++ interoperability
The field is called "compiler design". Consider taking a course [1] or buying a book?
A somewhat more playful approach might be to complete the 2019 edition of Advent of Code [2], where you'll learn some preliminaries while implementing the Intcode interpreter.
[1] https://online.stanford.edu/courses/soe-ycscs1-compilers
[2] https://adventofcode.com/2019
- [All years, all dates] Me after finishing all Advent of Code problems this year (my first year of AoC)
- Prawda o Pracy
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What's been your most favorite/fun project you've worked on?
The ending of Advent of Code 2019 was amazing. Well, the whole season was awesome, but the ending was amazing.
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[2021 Day 1-25][Rust] Solutions to all of this year's problems in terse and clean Rust
2019 in Rust
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Advent of Code (AoC) Day One
This is the seventh year puzzles, if you want to check out previous years take a look at: 2015, 2016, 2017, 2018, 2019, 2020
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QEMU Internals
I believe this is the direct link to the mentioned challenges: https://adventofcode.com/2019
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I would to like to make a MAME frontend in Go.
If you want to get started, I would recommend doing Advent of Code 2019 https://adventofcode.com/2019. It goes through and shows how to implement a basic VM. 0x10c / DCPU-16 is also a good place to start. Such simplified CPU-s help you get started and understand the basics without overwhelming you with the complexity :D.
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Advent of Code 2020 - Final Day: 25
Overall, I think this year felt a lot easier than the last one. Almost no graph problems, no path finding algorithms, and no insane math problems like day 22, 2019. It's really hard finding the right balance. I think 2019 was maybe a bit too hard and discouraged a lot of people. I like that this year was more approachable but perhaps it was a bit too easy towards the end.
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-🎄- 2020 Day 25 Solutions -🎄-
Thanks for an amazing year! Definitely a lot easier this year than last one, which was a bit sad. No hard graph problems, requiring path finding algorithms, no insane math problems like day 22 last year. It's hard finding the right balance. I think 2019 was maybe a bit too hard and this year maybe too easy.
What are some alternatives?
utop - Universal toplevel for OCaml
aoc2017 - My solutions for Advent of Code 2017, each in a different language.
sprig - Useful template functions for Go templates.
aoc2016 - My solutions for Advent of Code 2016, each in a different language
butter - A tasty language for building efficient software. WIP
fynegameboy - 🕹️ A basic gameboy emulator for desktop and mobile
wyvern - The Wyvern programming language.
GoBoy - Multi-platform Nintendo Game Boy Color emulator written in Go
subtex - Lightweight latex-like language for authoring books
AdventOfCode2021 - Solutions to all 25 AoC 2021 problems in Rust :crab: Less than 100 lines per day and under 1 second total execution time! :christmas_tree:
Skript - Skript is a Bukkit plugin which allows server admins to customize their server easily, but without the hassle of programming a plugin or asking/paying someone to program a plugin for them.
AdventOfCode2020 - Solutions to all 25 AoC 2020 problems in Rust :christmas_tree: