safe-json-value
nearley
safe-json-value | nearley | |
---|---|---|
13 | 3 | |
206 | 3,552 | |
- | - | |
7.1 | 0.0 | |
2 days ago | 8 months ago | |
JavaScript | JavaScript | |
Apache License 2.0 | MIT License |
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safe-json-value
- ⛑️ JSON serialization should never fail
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⛑ JSON serialization should never fail.
safe-json-value is a JavaScript library to prevent JSON.serialize() from:
- JSON serialization should never fail
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
What are some alternatives?
parse-json - Parse JSON with more helpful errors
PEG.js - PEG.js: Parser generator for JavaScript
json-query - Retrieves values from JSON objects for data binding
Jison - Bison in JavaScript.
Chevrotain - Parser Building Toolkit for JavaScript
neat-csv - Fast CSV parser
markdown-it - Markdown parser, done right. 100% CommonMark support, extensions, syntax plugins & high speed
strip-css-comments - Strip comments from CSS
xml2js - XML to JavaScript object converter.
parse5 - HTML parsing/serialization toolset for Node.js. WHATWG HTML Living Standard (aka HTML5)-compliant.