chumsky
Write expressive, high-performance parsers with ease. (by zesterer)
rust-peg
Parsing Expression Grammar (PEG) parser generator for Rust (by kevinmehall)
chumsky | rust-peg | |
---|---|---|
54 | 10 | |
3,334 | 1,388 | |
- | - | |
8.8 | 3.6 | |
7 days ago | 5 days ago | |
Rust | Rust | |
MIT License | MIT License |
The number of mentions indicates the total number of mentions that we've tracked plus the number of user suggested alternatives.
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.
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.
chumsky
Posts with mentions or reviews of chumsky.
We have used some of these posts to build our list of alternatives
and similar projects. The last one was on 2024-03-24.
-
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
-
nom > regex
there’s also chumsky: https://github.com/zesterer/chumsky
-
Writing an Equation Solver
We are using technique called parser combinator. And we are using a library chumsky to write parser combinators.
-
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.
-
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.
-
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
-
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.
-
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!
-
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).
-
Question about lexer and parser generators in Rust
Checkout https://github.com/zesterer/chumsky or https://github.com/rust-bakery/nom
rust-peg
Posts with mentions or reviews of rust-peg.
We have used some of these posts to build our list of alternatives
and similar projects. The last one was on 2023-12-06.
-
nom > regex
And some related parser tools: - https://github.com/kevinmehall/rust-peg - https://github.com/pest-parser/pest - https://github.com/lalrpop/lalrpop
-
Letlang — Roadblocks and how to overcome them - My programming language targeting Rust
Rust is a very nice langage for implementing compilers, and has a nice ecosystem for it (logos, rust-peg, lalrpop, astmaker -- this one is mine --, etc...).
-
Is there a parsing library (lexer?) which can handle generic tokens?
My peg crate is a parser generator that supports arbitrary token types as input. See https://github.com/kevinmehall/rust-peg/blob/master/tests/run-pass/tokens.rs for an example.
-
Hey Rustaceans! Got a question? Ask here! (51/2022)!
The one rust parser-generator I used is PEG
-
Hey Rustaceans! Got a question? Ask here! (29/2022)!
The two parser generators that I am aware of are lalrpop and PEG. There both great, and have seen some use by languages that have been written in Rust.
-
Domain Specific Language embedded in Rust
rust-peg
- One Letter Programming Languages
-
Using Nom - a parser combinator library
I wanted to create a parser for Apertium Stream. In 2014, I used Whittle in Ruby. If this year were 2001, I would use Lex/Yacc. Anyway, this year is 2021. I wanted to create this parser in Rust. I tried to find what is similar to Lex/Yacc. I found Rust-Peg. I found a link to Nom from Rust-Peg's document. My first impression was Nom example is easy to read. At least, its document claimed Nom is fast.
-
Hey Rustaceans! Got an easy question? Ask here (5/2021)!
The peg crate has a resolved issue about this.
-
Rust is the second most used language for Advent of Code, after Python
I don't really know that much about parsing and grammars, other than what I've learned about regular languages and expressions and context-free languages in a standard Theory of Comp course from my university. I basically just learned peg by reading the Wikipedia article on PEGs, reading the crate documentation to understand the syntax, and then looking at some of the peg examples on their GitHub to understand how it works in practice.
What are some alternatives?
When comparing chumsky and rust-peg you can also consider the following projects:
nom - Rust parser combinator framework
pest - The Elegant Parser
pom - PEG parser combinators using operator overloading without macros.
lalrpop - LR(1) parser generator for Rust
chomp - A fast monadic-style parser combinator designed to work on stable Rust.
instaparse
rust-bison-skeleton - Bison frontend for Rust
combine - A parser combinator library for Rust