CSharpRepl
Pipefish
CSharpRepl | Pipefish | |
---|---|---|
14 | 36 | |
2,505 | 138 | |
- | - | |
8.3 | 9.2 | |
5 days ago | 13 days ago | |
C# | Go | |
Mozilla Public License 2.0 | MIT License |
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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.
CSharpRepl
- Is .NET just miles ahead or am I delusional?
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The best C# REPL is in your terminal
The C# REPL I'm talking about is simply called... C# REPL. It's an open-source project created by Will Fuqua, and as of today, it has over 2k GitHub stars. It is distributed as a .NET tool and is cross-platform. In this blog post, I'm going to show you how to install it on Windows Terminal, but you can install it on any terminal emulator you prefer.
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It's 2023, so of course I'm learning Common Lisp
> The repl driven workflow is amazing and the lisp images are rock solid and highly performant.
do people not realize that basically everything vm/interpreted language has a repl these days?
https://www.digitalocean.com/community/tutorials/java-repl-j...
https://github.com/waf/CSharpRepl
https://pub.dev/packages/interactive
not to mention ruby, python, php, lua
hell even c++ has a janky repl https://github.com/root-project/cling
- How is C# interactive compared to F# REPL?
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Short video on LINQPad AI
Let me introduce you to my lord and savior https://github.com/waf/CSharpRepl
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Anyway to run LinqPad 7 with .net 8?
Not the answer you’re looking for, but I haven’t been able to run LinqPad since I moved to Mac OS. Polyglot notebooks plug-in for VS Code comes very close to LinqPad, or if you don’t mind Terminal/CommandLine csharprepl is amazing.
- Run C# Straight from Command line! (C# REPL)
- Run C# Straight from Commandline! (C# REPL)
- Best REPL for a language
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On Repl-Driven Programming
For REPLs, there are options like (my own) https://github.com/waf/CSharpRepl which stand on top of the Roslyn compiler infrastructure, which is quite extensive and can easily evaluate standalone functions and statements.
It's still nowhere close to the REPLs of lisp and smalltalk, but it's a step in a more flexible direction.
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
What are some alternatives?
Cocona - Micro-framework for .NET console application. Cocona makes it easy and fast to build console applications on .NET.
utop - Universal toplevel for OCaml
replay-csharp - An editable C# REPL (Read Eval Print Loop) powered by Roslyn and .NET Core
sprig - Useful template functions for Go templates.
Gui.cs - Cross Platform Terminal UI toolkit for .NET
butter - A tasty language for building efficient software. WIP
rcf - RCF – a REPL-first, async test macro for Clojure/Script
wyvern - The Wyvern programming language.
gui.cs - Cross Platform Terminal UI toolkit for .NET [Moved to: https://github.com/gui-cs/Terminal.Gui]
subtex - Lightweight latex-like language for authoring books
clojerl - Clojure for the Erlang VM (unofficial)
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.