Language parsing

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.

Repositories 631

babel / babel

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🐠 Babel is a compiler for writing next generation JavaScript.

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prettier / prettier

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Prettier is an opinionated code formatter.

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nikic / PHP-Parser

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js2flowchart - a visualization library to convert any JavaScript code into beautiful SVG flowchart. Learn other’s cod…

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The ESTree Spec

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remarkjs / remark

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JavaScript Updated Jan 23, 2019 1 issue needs help

fkling / astexplorer

A web tool to explore the ASTs generated by various parsers.

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estools / escodegen

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retextjs / retext

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src-d / gitbase

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SQL interface to Git repositories, written in Go. https://docs.sourced.tech/gitbase

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JSQLParser / JSqlParser

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JSqlParser parses an SQL statement and translate it into a hierarchy of Java classes. The generated hierarchy can be …

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babel / babylon

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PSA: moved into babel/babel as @babel/parser -->

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unifiedjs / unified

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☔ friendly interface backed by an ecosystem of plugins built for creating and manipulating content

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alecthomas / participle

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A parser library for Go

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Graphical Python debugger which lets you easily view the values of all evaluated expressions

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rectorphp / rector

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Instant Upgrades for PHP Applications

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infection / infection

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AST based PHP Mutation Testing Framework

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INRIA / spoon

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Spoon is a library to analyze, transform, rewrite, transpile Java source code (incl Java 9 & Java 10). It parses sour…

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tc39 / proposal-binary-ast

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Binary AST proposal for ECMAScript

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Microsoft / tolerant-php-parser

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An early-stage PHP parser designed for IDE usage scenarios.

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andreasfertig / cppinsights

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C++ Insights - See your source code with the eyes of a compiler

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C++ Updated Feb 1, 2019 2 issues need help

estools / estraverse

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ECMAScript JS AST traversal functions

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mgechev / tiny-compiler

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A tiny evaluator and compiler of arithmetic expressions.

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csstree / csstree

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A tool set for working with CSS including fast detailed parser, walker, generator and lexer based on W3C specs and br…

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z7zmey / php-parser

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PHP parser written in Go

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Learn about parsing

Wikipedia: Wikipedia