lalrpop
lr-lang
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lalrpop | lr-lang | |
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25 | 4 | |
2,865 | 0 | |
1.4% | - | |
8.0 | 0.0 | |
about 1 month ago | over 1 year ago | |
Rust | Rust | |
Apache-2.0 or MIT | Apache License 2.0 |
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lalrpop
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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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What is the state of the art for creating domain-specific languages (DSLs) with Rust?
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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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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Question about lexer and parser generators in Rust
Hi! For one of my projects I am currently using lalrpop (https://github.com/lalrpop/lalrpop/tree/master/doc/calculator/src), which is far from complete, but has the basic syntax I was looking for. I took some examples and worked around some lexer stuff but I’m currently happy with it. If you use it and have Intellij stuff installed, you can also use a plug-in for highlighting and SOMETIMES error checking. Otherwise, even VSCode had a great plug-in for highlighting!
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Contrext-free language parsing with procedural macros
How would you compare and contrast this with, say, lalrpop?
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Tools for creating a programming language in rust
lalrpop is great. It's a completely different approach from nom, but for parsing a programming language, I would at least consider it. RustPython uses it.
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Best languages to design a new language in?
I presume LALRPOP handles left recursion just fine.
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Show HN: IQ” – jq for images (using rust, LALRPOP)
I wanted to share an experimental side project I have been working on for some time. I constantly use commands like `jq` and `yq` for processing structured data in my day job and I was curious if a similar idea could be applied to images.
Another goal of mine was to get some exposure to with rust. I discovered the LALRPOP parser generator which really helped moved the project along (https://github.com/lalrpop/lalrpop)
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Writing a new programming language. Part II: Variables and expressions
The key point here is that we are going to depend on the lalrpop library to generate the parser based on the formal grammar we define. Note that we have it as part of the [build-dependencies] section and we only depend on a tiny utility crate called lalrpop-util at runtime. The reason for that is the main lalrpop "magic" would happen during the crate compilation (in the build.rs file) when lalrpop would generate the deterministic pushdown automaton based on our grammar. The code generation logic is not required to be part of our interpreter, we only need a few utility methods from the lalrpop-util for the automaton to operate. You might have noticed that we also enable the lexer feature of lalrpop, because we are going to use lexer provided by lalrpop as well (please refer to the Part I if you do not know what the lexer is).
lr-lang
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Writing a new programming language. Part IV: Boolean expressions and if statements
Despite it looking like a lot of work, I'll try not to spend a lot of time on it. My main reason is that boolean implementation is just a bit more complex version of the work we've done in parts II and III of this tutorial. I will only cover the main ideas behind the implementation to help you to navigate through the code on your own. You can see all the changes required to be made in this commit.
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Writing a new programming language. Part III: Type System
The state of the code by the end of this tutorial could be found in the part_3 branch of the GitHub repository. The changes made today could be seen in the e5e04bc commit
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Writing a new programming language. Part II: Variables and expressions
You can find the state of the source code in the part_2 branch of the kgrech/lr-lang github repo.
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Writing a new programming language. Part I: a bit of boring theory
I am hoping to implement the support of expressions of statements, basic loops, and functions, however exact feature set and the number of tutorials would depend on audience interest (number of reads, comments, and amount of reactions to the posts). I'll keep all my code in the kgrech/lr-lang with a branch pointing to the commit representing the code state by end of every tutorial.
What are some alternatives?
pest - The Elegant Parser
nom - Rust parser combinator framework
rust-peg - Parsing Expression Grammar (PEG) parser generator for Rust
combine - A parser combinator library for Rust
PEGTL - Parsing Expression Grammar Template Library
chomp - A fast monadic-style parser combinator designed to work on stable Rust.
pom - PEG parser combinators using operator overloading without macros.
rust-csv - A CSV parser for Rust, with Serde support.
oak - A typed parser generator embedded in Rust code for Parsing Expression Grammars
zero - A Rust library for zero-allocation parsing of binary data.
rust-bison-skeleton - Bison frontend for Rust
chumsky - Write expressive, high-performance parsers with ease.