nearley
Jison
Our great sponsors
| nearley | Jison | |
|---|---|---|
| 3 | 1 | |
| 3,545 | 4,322 | |
| - | - | |
| 0.0 | 0.0 | |
| 8 months ago | over 1 year ago | |
| JavaScript | JavaScript | |
| MIT License | MIT License |
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.
nearley
-
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
-
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.
Jison
-
Javascript To Rust Conversion
Not yet: it's a grammar for the jison parser generator.
What are some alternatives?
PEG.js - PEG.js: Parser generator for JavaScript
Chevrotain - Parser Building Toolkit for JavaScript
JSONStream
markdown-it - Markdown parser, done right. 100% CommonMark support, extensions, syntax plugins & high speed
xml2js - XML to JavaScript object converter.
js-yaml - JavaScript YAML parser and dumper. Very fast.
parse5 - HTML parsing/serialization toolset for Node.js. WHATWG HTML Living Standard (aka HTML5)-compliant.
neat-csv - Fast CSV parser
fast-xml-parser - Validate XML, Parse XML and Build XML rapidly without C/C++ based libraries and no callback.