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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.
ANTLR (ANother Tool for Language Recognition) is a powerful parser generator for reading, processing, executing, or translating structured text or binary files.
Rust parser combinator framework
A querystring parser with nesting support
Parse and stringify URL query strings
Markdown parser, done right. Commonmark support, extensions, syntax plugins, high speed - all in one. Gulp and metalsmith plugins available. Used by Facebook, Docusaurus and many others! Use https://github.com/breakdance/breakdance for HTML-to-markdown conversion. Use https://github.com/jonschlinkert/markdown-toc to generate a table of contents.
Lark is a parsing toolkit for Python, built with a focus on ergonomics, performance and modularity.
SwiftSoup: Pure Swift HTML Parser, with best of DOM, CSS, and jquery (Supports Linux, iOS, Mac, tvOS, watchOS)
Smarter YAML front matter parser, used by metalsmith, Gatsby, Netlify, Assemble, mapbox-gl, phenomic, vuejs vitepress, TinaCMS, Shopify Polaris, Ant Design, Astro, hashicorp, garden, slidev, saber, sourcegraph, and many others. Simple to use, and battle tested. Parses YAML by default but can also parse JSON Front Matter, Coffee Front Matter, TOML Front Matter, and has support for custom parsers. Please follow gray-matter's author: https://github.com/jonschlinkert
Makes life working with units of measurement just a little bit better.
Html Agility Pack (HAP) is a free and open-source HTML parser written in C# to read/write DOM and supports plain XPATH or XSLT. It is a .NET code library that allows you to parse "out of the web" HTML files.
Get unified metadata from websites using Open Graph, Microdata, RDFa, Twitter Cards, JSON-LD, HTML, and more.
📝 HTML to React parser.
Blazing fast and Comprehensive CSV Parser for Node.JS / Browser / Command Line.
small, safe, and great commonmark (optionally gfm, mdx) compliant markdown parser
The Android SDK for Parse Platform
Tika-Python is a Python binding to the Apache Tika™ REST services allowing Tika to be called natively in the Python community.
The JavaScript SDK for Parse Platform
Declarative binary reading and writing: bit-level, symmetric, serialization/deserialization
CommonMark compliant markdown parser in Rust with ASTs and extensions
