grammar

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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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antlr /antlr4

Star17.8k

ANTLR (ANother Tool for Language Recognition) is a powerful parser generator for reading, processing, executing, or translating structured text or binary files.

javascript python java dart swift golang php parse csharp parsing cpp parser-generator grammar antlr antlr4 language-recognition

UpdatedApr 3, 2025
Java

languagetool-org /languagetool

Star13k

Style and Grammar Checker for 25+ Languages

natural-language-processing spellcheck natural-language grammar style-checker proofreading

UpdatedApr 19, 2025
Java

antvis /G2

Sponsor

Star12.3k

📊 The concise and progressive visualization grammar.

visualization svg chart webgl canvas animation graphics grammar interaction hacktoberfest

UpdatedApr 16, 2025
TypeScript

rust-bakery /nom

Star9.9k

Rust parser combinator framework

rust parser parse parser-combinators grammar nom byte-array

UpdatedFeb 8, 2025
Rust

antvis /F2

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Star7.9k

📱📈An elegant, interactive and flexible charting library for mobile.

visualization charts mobile grammar html5-canvas data-visualization data-visualisation f2 antv

UpdatedApr 18, 2025
JavaScript

alibaba /BizCharts

Star6.2k

Powerful data visualization library based on G2 and React.

react chart es6 grammar html5-canvas data-visualization

UpdatedOct 13, 2023
TypeScript

lark-parser /lark

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Star5.2k

Lark is a parsing toolkit for Python, built with a focus on ergonomics, performance and modularity.

python parser tree parse parser-library grammar parsing-engine lark earley lalr parsing-library cyk

UpdatedMar 22, 2025
Python

tidyverse /dplyr

Star4.9k

dplyr: A grammar of data manipulation

r grammar data-manipulation

UpdatedApr 16, 2025
R

has2k1 /plotnine

Star4.2k

A Grammar of Graphics for Python

python graphics grammar data-analysis plotting

UpdatedApr 18, 2025
Python

alecthomas /participle

Sponsor

Star3.7k

A parser library for Go

go golang parser parser-library grammar ast lexer ebnf parser-api parser-framework participle

UpdatedApr 8, 2025
Go

lalrpop /lalrpop

Star3.2k

LR(1) parser generator for Rust

rust parser-generator grammar

UpdatedMar 5, 2025
Rust

taocpp /PEGTL

Star2k

Parsing Expression Grammar Template Library

parsing parser-combinators cpp grammar cpp11 parsing-expression-grammar header-only cpp17 peg parsing-expression-grammars pegtl

UpdatedApr 7, 2025
C++

typedgrammar /typed-japanese

Star1.7k

🌸 Learn Japanese grammar with TypeScript

nlp typescript dsl japanese grammar language-learning computational-linguistics type-system type-level-programming language-verification typescript-types japanese-grammar

UpdatedMar 29, 2025
TypeScript

znck /grammarly

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Star1.7k

Grammarly for VS Code

grammar vscode-extension grammar-checker languageserverprotocol english-grammar grammarly languageserver

UpdatedDec 17, 2023
TypeScript

PrithivirajDamodaran /Gramformer

Sponsor

Star1.5k

A framework for detecting, highlighting and correcting grammatical errors on natural language text. Created by Prithiviraj Damodaran. Open to pull requests and other forms of collaboration.

grammar grammar-error-correction grammar-checker grammar-correction