nom_locate
chumsky
| nom_locate | chumsky | |
|---|---|---|
| 3 | 54 | |
| 210 | 3,373 | |
| - | - | |
| 4.8 | 8.6 | |
| 5 months ago | about 1 month ago | |
| Rust | Rust | |
| MIT License | MIT License |
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nom_locate
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What's everyone working on this week (22/2023)?
I am using nom / nom_locate to build the parser side because I've done a handful of other projects with it, and I plan to use tower-lsp to hook up the language server side.
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How to handle errors in Nom?
The official docs say that nom_locate would be useful for this, but I can't really figure out how to create descriptive error messages with it.
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Hey Rustaceans! Got an easy question? Ask here (7/2022)!
I'm not sure exactly what you're requesting, but maybe nom_locate can help.
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?
rust-subprocess - Execution of and interaction with external processes and pipelines
nom - Rust parser combinator framework
arp_standin - Proof of concept for responding to ARP requests on behalf of another machine. (Deprecated by https://github.com/danielpgross/friendly_neighbor)
pest - The Elegant Parser
LMDB-editor - A small LMDB editor made in Rust with egui
pom - PEG parser combinators using operator overloading without macros.
rocket-webservice-test-rust - Experimenting with the Rocket framework and GCP Cloud Run. Includes a GraphQL implementation and a MongoDB integrations branch.
lalrpop - LR(1) parser generator for Rust
rust-cookbook - https://rust-lang-nursery.github.io/rust-cookbook
instaparse
gstuff.rs - Small macro and trinkets that make my life easier.
combine - A parser combinator library for Rust