@lezer/generator
Advanced tools
Changelog
1.7.0 (2024-03-12)
Include type declarations for the Rollup plugin.
Named or @export-ed specialized tokens are now available in the terms file.
The generator now emits a warning when rules generate a lot of different variants (usually due to a combinatory explosion of ? and | operators).
Readme
[ WEBSITE | ISSUES | FORUM | CHANGELOG ]
This is an LR(1) (more precisely pseudo-LALR,with opt-in GLR) parser generator which outputs grammars that can be used by the Lezer parser.
This package exports both a command-line parser generator tool called lezer-generator and a programming interface.
The grammar format that the tool accepts is documented in the system guide.
See test/cases/ for some simple example grammars, or lezer-javascript for a real grammar.
You can import "@lezer/generator/rollup" to get a Rollup plugin that will transform files ending in .grammar or .grammar.terms (a pseudo-source referring to the terms produced by the .grammar file) as part of the rollup build process.
import {lezer} from "@lezer/generator/rollup"
export default {
input: "./in.js",
output: {file: "out.js", format: "cjs"},
plugins: [lezer()]
}
The plugin can be passed lezer({exportName}) option to configure the name of the parser export.
The code is licensed under an MIT license.
FAQs
Parser generator for the incremental lezer parser
The npm package @lezer/generator receives a total of 79,459 weekly downloads. As such, @lezer/generator popularity was classified as popular.
We found that @lezer/generator demonstrated a healthy version release cadence and project activity because the last version was released less than a year ago. It has 1 open source maintainer collaborating on the project.
Did you know?
Socket for GitHub automatically highlights issues in each pull request and monitors the health of all your open source dependencies. Discover the contents of your packages and block harmful activity before you install or update your dependencies.
Security News
Researchers recently demonstrated that the npm Registry is vulnerable to cache poisoning combined with DoS, posing significant risks for package availability.
Security News
The June TC39 meeting wrapped up this week with eight proposals moving on to the next stage. Here's a quick roundup of the features that the committee approved to advance.
Security News
Cyber extortion in the US and Canada hit record levels in 2023, with ransomware attacks surging and median ransom demands skyrocketing, though fewer companies are choosing to pay ransoms.