statix
chumsky
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statix
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Editor support for the nix language?
As others have mentioned, there are a couple of LSP implementations. There's also statix for basic static analysis, as well as a few formatters, including nixpkgs-fmt and alejandra.
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Chumsky, a parser combinator crate that makes writing error-tolerant parsers with recovery easy and fun!
I use the author's pretty error rendering crate: ariadne, in statix, and it is a delight. Comfy API, loads of customization opts, and very pretty.
- Statix — Lints and Suggestions for the Nix programming language
chumsky
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Lezer: A Parsing System for CodeMirror, Inspired by Tree-Sitter
I attempted to use this but was disheartened but the fact that it doesn't statically type node names. Tree Sitter doesn't either but it has much more of an excuse given that it targets C.
https://github.com/lezer-parser/lezer/issues/8
The dev seems mildly hostile to outside involvement too, so I moved on. These days I use Chumsky which is Rust rather than Typescript, but also way more awesome, if you can deal with the often incomprehensible compilation errors at least!
https://github.com/zesterer/chumsky
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nom > regex
there’s also chumsky: https://github.com/zesterer/chumsky
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Writing an Equation Solver
We are using technique called parser combinator. And we are using a library chumsky to write parser combinators.
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loxcraft: a compiler, language server, and online playground for the Lox programming language
rust-langdev has a lot of libraries for building compilers in Rust. Perhaps you could use these to make your implementation easier, and revisit it later if you want to build things from scratch. I'd suggest logos for lexing, LALRPOP / chumsky for parsing, and rust-gc for garbage collection.
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Examples of function-based parsers in chumsky? Examples of unit tests?
The examples that come with chumsky and the chumsky tutorial and guide all define their parsers using closures.
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Flamingo - A start: the syntax, a soon-to-be-built keyword-less lang with flavoured code blocks. Seeking help and advice please :)
Parser: https://crates.io/crates/chumsky
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pep-508 v0.2.1 - Zero copy Python dependency parser written with chumsky
chumsky's zero-copy rewrite has reached its first alpha release, and I have migrated my pep-508 parser to it, as suggested in my last announcement.
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winnow = toml_edit + combine + nom
On my side, nom is still advancing well and a new major version is in preparation, with some interesting work a new GAT based design inspired from the awesome work on chumsky, that promises to bring great performance with complex error types. 2023 will be fun for parser libraries!
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Rust implementation of Python dependency parser for PEP 508
I am using chumsky because I like the API, but it doesn't support zero copy at the moment. Although efficiency is good to have, it is not my primary good. This will probably get supported once chumsky implements support for it (see upstream issue).
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Question about lexer and parser generators in Rust
Checkout https://github.com/zesterer/chumsky or https://github.com/rust-bakery/nom
What are some alternatives?
git-hooks.nix - Seamless integration of https://pre-commit.com git hooks with Nix.
nom - Rust parser combinator framework
tao - A statically-typed functional language with generics, typeclasses, sum types, pattern-matching, first-class functions, currying, algebraic effects, associated types, good diagnostics, etc.
pest - The Elegant Parser
rnix-lsp - WIP Language Server for Nix! [maintainer=@aaronjanse]
pom - PEG parser combinators using operator overloading without macros.
lalrpop - LR(1) parser generator for Rust
ariadne - A fancy diagnostics & error reporting crate
instaparse
combine - A parser combinator library for Rust