GitHub - ohmjs/ohm: A library and language for building parsers, interpreters, compilers, etc.
Ohm is a parsing toolkit consisting of a library and a domain-specific language. You can use it to parse custom file formats or quickly build parsers, interpreters, and compilers for programming languages. The Ohm language is based on parsing expression grammars (PEGs), which are a formal way of describing syntax, similar to regular expressions and context-free grammars. The Ohm library provides a
JSで書かれたECMAScript RegExpパーサーの比較 | Memory ice cubes
OXCで正規表現パーサーを実装してるときに全部一通り読んでみて、みんな違ってみんな良いってなったので。 候補はこちらの3つ。 https://github.com/jviereck/regjsparser https://github.com/DmitrySoshnikov/regexp-tree https://github.com/eslint-community/regexpp かのAST Explorerでも、RegExp部門ではこの3つがリストにある。 AST explorer https://astexplorer.net/ 前提 ECMAScript本体だと、ESTreeというデファクトがあるけど、残念ながらRegExpにはない。 ESTreeでのRegExpの扱いはこんな感じで、ただの文字列でしかない。 interface RegExpLiteral <: Literal
GitHub - coderaiser/putout: 🐊 Pluggable and configurable JavaScript Linter, code transformer and formatter with superpowers 💪: built-in support of js, jsx, ts, markdown, yaml, toml, json and ignore. Write declarative codemods in a simplest possible way
Perfection is finally attained not when there is no longer anything to add, but when there is no longer anything to take away. (c) Antoine de Saint Exupéry 🐊Putout is a JavaScript Linter, pluggable and configurable code transformer, drop-in ESLint replacement with built-in code printer and ability to fix syntax errors. It has lots of transformations that keeps your codebase in a clean state, remo
GitHub - unjs/magicast: 🧀 Programmatically modify JavaScript and TypeScript source codes with a simplified, elegant and familiar syntax powered by recast and babel.
Programmatically modify JavaScript and TypeScript source codes with a simplified, elegant and familiar syntax. Built on top of the AST parsed by recast and babel. ❯ 🧙🏼 Magical modify a JS/TS file and write back magically just like JSON! ❯ 🔀 Exports/Import manipulate module's imports and exports at ease ❯ 💼 Function Arguments easily manipulate arguments passed to a function call, like defineCon
Regenerator, AST, and ES6 at Facebook (Tech Talk by Ben Newman)
See the full post here: http://www.hakkalabs.co/articles/ecmascript-6-at-facebook Ben Newman (Engineer, Facebook) has spent many months creating Regenerator which brings support for ES6 style generators to your code. In this popular talk, Ben will talk about what led him to create Regenerator, show us what it can do today, and talk about where it's going in the future. This talk was presented at
Parsing in JavaScript: all the tools and libraries you can use
This is an article similar to a previous one we wrote: Parsing in Java, so the introduction is the same. Skip to chapter 3 if you have already read it. If you need to parse a language, or document, from JavaScript there are fundamentally three ways to solve the problem: use an existing library supporting that specific language: for example a library to parse XML building your own custom parser by
ESTree 互換っぽい AST を出力する JavaScript のパーサーまとめ
@babel/parser Babel で使われているパーサー。最新の JavaScript だけでなく、まだ ECMAScript に入っていないプロポーザルや TypeScript、Flow もオプションで対応している。また、AST は ESTree と一部互換性がないものを出力するが、estree プラグインを使うことで、ESTree 互換の AST を出力させることもできる。 Prettier のデフォルトパーサー。@babel/eslint-parserを使うことで ESLint のパーサーとしても使うことができる。 @typescript-eslint/typescript-estree @typescript-eslint/parser の内部で使われている TypeScript をパースするためのパーサー。 内部的には TypeScript Compiler API を使っ
GitHub - geut/jsdast: JSDoc Abstract Syntax Tree
const unified = require('unified') const { parser } = require('@geut/jsdast') const tree = unified().use(parser).parse(` /** * @param {number} a * @param {number} b * @returns {number} */ function sum(a, b) { return a + b } `) console.log(JSON.stringify(tree, null, 2)) /* { "type": "Root", "children": [ { "type": "Module", "name": "Index", "doc": { "description": "", "tags": [] }, "children": [ {
Lezer
The Lezer Parser System The problem of parsing structured text has resisted one-size-fits all solutions for over 60 years. Lezer isn't such a solution either, but it is a very decent parser generator, especially well suited for use in code editors. Lezer (the Dutch word for reader, pronounced like “laser”) provides a parser generator that outputs JavaScript modules, which can be loaded to parse co
GitHub - pvdz/tenko: An 100% spec compliant ES2021 JavaScript parser written in JS
A "pixel perfect" 100% spec compliant JavaScript parser written in JavaScript, parsing ES6/ES2015 - ES2025. REPL: https://pvdz.github.io/tenko/repl Supports: Anything stage 4 up to and including ES2025 Explicit resource ("using") stage 3 (under flag) Regex syntax (deep) Parsing modes: Sloppy / non-strict Web compat / AnnexB Strict Module AST Is optional, enabled by default Estree (default) Acorn B
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GitHub - oxc-project/javascript-parser-in-rust: Tutorial on writing a JavaScript Parser in Rust
GitHub - oxc-project/oxc: ⚓ A collection of high-performance JavaScript tools.
Parse and Error Recovery API by MichaReiser · Pull Request #1815 · rome/tools
GitHub - node-projects/esprima-next: fork of esprima, with full ES2022 support
GitHub - jviereck/regjsparser: Parsing the JavaScript's RegExp in JavaScript.
GitHub - BlueBlazin/thislang: A subset of javascript implemented in that subset of javascript.
GitHub - EricSmekens/jsep: JavaScript Expression Parser
GitHub - Rich-Harris/periscopic: Utility for analyzing scopes belonging to an ESTree-compliant AST
p6.is
GitHub - buntis/buntis: A 100% compliant, self-hosted typescript parser that emits an ESTree-compatible AST
