nearley
parse-json
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| nearley | parse-json | |
|---|---|---|
| 3 | - | |
| 3,548 | 336 | |
| - | - | |
| 0.0 | 6.3 | |
| 8 months ago | about 2 months ago | |
| JavaScript | JavaScript | |
| MIT License | MIT License |
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nearley
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Writing a C compiler in 500 lines of Python
While I suspect I would learn more writing a tokenizer and parsing logic myself I find grammars much easier to read and maintain.
ANTLR is pretty good and is supported across several languages and something I had previously used for some quick Elasticsearch query syntax munging in Python. It also means you can often start from an already existing grammar.
The JS version of ANTLR didn't seem to work for me so for the SQL/JSONPath stuff ended up using the Moo lever and Nearly parser which was rather pleasant. https://nearley.js.org
- Parser generators vs. handwritten parsers: surveying major languages in 2021
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Applicative Parsing
Parsers in nearley.js [1] are written in a very readable EBNF-like DSL; then they get desugared down to a JS file that's a lot like your snippet.
[1] https://github.com/kach/nearley
parse-json
We haven't tracked posts mentioning parse-json yet.
Tracking mentions began in Dec 2020.
What are some alternatives?
PEG.js - PEG.js: Parser generator for JavaScript
xlsx-populate - Excel XLSX parser/generator written in JavaScript with Node.js and browser support, jQuery/d3-style method chaining, encryption, and a focus on keeping existing workbook features and styles in tact.
Jison - Bison in JavaScript.
Chevrotain - Parser Building Toolkit for JavaScript
csv-parser - Streaming csv parser inspired by binary-csv that aims to be faster than everyone else
markdown-it - Markdown parser, done right. 100% CommonMark support, extensions, syntax plugins & high speed
js-yaml - JavaScript YAML parser and dumper. Very fast.
xml2js - XML to JavaScript object converter.
parse5 - HTML parsing/serialization toolset for Node.js. WHATWG HTML Living Standard (aka HTML5)-compliant.
URI.js - Javascript URL mutation library