rust-peg
Parsing Expression Grammar (PEG) parser generator for Rust (by kevinmehall)
combine
A parser combinator library for Rust (by Marwes)
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rust-peg | combine | |
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10 | 4 | |
1,371 | 1,253 | |
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5.0 | 4.8 | |
6 months ago | 3 months 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.
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.
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nom > regex
And some related parser tools: - https://github.com/kevinmehall/rust-peg - https://github.com/pest-parser/pest - https://github.com/lalrpop/lalrpop
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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...).
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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.
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Hey Rustaceans! Got a question? Ask here! (51/2022)!
The one rust parser-generator I used is PEG
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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.
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Domain Specific Language embedded in Rust
rust-peg
- One Letter Programming Languages
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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.
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Hey Rustaceans! Got an easy question? Ask here (5/2021)!
The peg crate has a resolved issue about this.
combine
Posts with mentions or reviews of combine.
We have used some of these posts to build our list of alternatives
and similar projects. The last one was on 2022-03-19.
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Domain Specific Language embedded in Rust
Combine is also nice to use and actively developed.
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Hey Rustaceans! Got an easy question? Ask here (9/2022)!
https://crates.io/crates/combine is a decent alternative to Nom. I found it much easier to pick up. I was using it to implement our generalized placeholder syntax in SQLx (which I hope to actually finish at some point): https://github.com/launchbadge/sqlx/blob/a2eda2de2462876a160982e57d73103795e34aa2/sqlx-core/src/placeholders.rs
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Chumsky, a parser combinator crate that makes writing error-tolerant parsers with recovery easy and fun!
Nice to see support for error recovery with parser combinators! I never got to the point of adding it in combine as I swapped out my language parser(s) to use LALRPOP instead (implementing error recovery for it instead).
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Hey Rustaceans! Got an easy question? Ask here (42/2021)!
You may want to also look at some of the popular parser combinators like nom and combine. I don't think they do what you are suggesting, though.
What are some alternatives?
When comparing rust-peg and combine you can also consider the following projects:
pest - The Elegant Parser
nom - Rust parser combinator framework
lalrpop - LR(1) parser generator for Rust
chomp - A fast monadic-style parser combinator designed to work on stable Rust.
pom - PEG parser combinators using operator overloading without macros.
rust-bison-skeleton - Bison frontend for Rust
rust-csv - A CSV parser for Rust, with Serde support.