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A grammar describes the syntax of a programming language, and might be defined in Backus-Naur form (BNF). A lexer performs lexical analysis, turning text into tokens. A parser takes tokens and builds a data structure like an abstract syntax tree (AST). The parser is concerned with context: does the sequence of tokens fit the grammar? A compiler is a combined lexer and parser, built for a specific grammar.
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Turn any codebase, with its docs, SQL schemas, configs, and PDFs, into a queryable knowledge graph. A /graphify skill for Claude Code, Cursor, Codex, and Gemini CLI: local deterministic AST parsing, every edge explained, no vector store.
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Nov 11, 2026
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Prettier is an opinionated code formatter.
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Nov 12, 2026
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JavaScript
Local code intelligence for developers and AI agents. Connect code, docs and infrastructure in a persistent graph, with CBM Lens, MCP tools, agent integrations and change-aware test selection.
🐠 Babel is a compiler for writing next generation JavaScript.
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Nov 12, 2026
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TypeScript
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Nov 12, 2026
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TypeScript
A PHP parser written in PHP
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Nov 12, 2026
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Rust
Instant Upgrades and Automated Refactoring of any PHP 5.3+ code
markdown processor powered by plugins part of the @unifiedjs collective
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JavaScript
ECMAScript parsing infrastructure for multipurpose analysis
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Apr 16, 2023
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TypeScript
js2flowchart - a visualization library to convert any JavaScript code into beautiful SVG flowchart. Learn other’s code. Design your code. Refactor code. Document code. Explain code.
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Oct 2, 2023
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JavaScript
A web tool to explore the ASTs generated by various parsers.
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Apr 26, 2024
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JavaScript
TypeScript Compiler API wrapper for static analysis and programmatic code changes.
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Sep 29, 2026
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TypeScript
Java 1-25 Parser and Abstract Syntax Tree for Java with advanced analysis functionalities.
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Nov 10, 2026
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Java
GoGoCode is a transformer for JavaScript/Typescript/HTML based on AST but providing a more intuitive API.
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Apr 11, 2024
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JavaScript
JSqlParser parses an SQL statement and translate it into a hierarchy of Java classes. The generated hierarchy can be navigated using the Visitor Pattern
📚 《Go语言定制指南》(原名:Go语法树入门/开源免费图书/Go语言进阶/掌握抽象语法树/Go语言AST)
The ultimate RAG for your monorepo. Query, understand, and edit multi-language codebases with the power of AI and knowledge graphs
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Nov 12, 2026
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Python
Parse, inspect, transform, and serialize content with syntax trees
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Oct 3, 2026
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JavaScript
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