| peggy | jfq | |
|---|---|---|
| 8 | 13 | |
| 823 | 45 | |
| 5.6% | - | |
| 9.0 | 7.2 | |
| about 1 month ago | 4 days 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.
peggy
- Peggy: Parser Generator for JavaScript
- GitHub - peggyjs/peggy: Peggy: Parser generator for JavaScript
- Peggy: Maintained fork of PEG.js parser generator
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Creating a custom parser with PEGJS
The PEG.js project got taken over by a new maintainer who locked everyone else out, never shipped a release, and then ignored repeated requests to transfer the project back to the community. So the community forked it to a new project - Peggy, which is where ongoing development happens: https://github.com/peggyjs/peggy
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How to make your own programming language in JavaScript
NOTE: The original PEG.js project is not maintained anymore, but there is a new fork, Peggy that is maintained and it's backward compatible with PEG.js so it will be easy to switch.
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Show HN: DTL: a language and JavaScript lib to transform and manipulate data
Thanks. Yes, DTL's core textual syntax is described with PEG. I make use of the Peggy (https://peggyjs.org/) PEG processor to build up the AST that is used to actually process DTL.
There are C based PEG processors, which I've looked at once or twice also, but I haven't sat down to try to convert it. Mostly out of a desire to get the existing module to work well. A working module for one language is better than a partially working module for multiple. :P
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Parsing in JavaScript: all the tools and libraries you can use
hmm this article is a bit outdated; peg.js (mentioned in the article) has been discountined for a few years now; recently the project was picked up by another team under the name peggy.js https://github.com/peggyjs/peggy
jfq
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How to Use JSON Path
One of the best tools I've found for manipulating JSON via JsonPath syntax is https://jsonata.org
In addition to simple queries that allow you to select one (or multiple) matching nodes, it also provides some helper functions, such as arithmetic, comparisons, sorting, grouping, datetime manipulation, and aggregation (e.g. sum, max, min).
- JSONata: JSON Query and Transformation Language
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SQLite > Magic > SVG Chart
I just discovered JSONata.
- Show HN: DTL: a language and JavaScript lib to transform and manipulate data
- The fastest tool for querying large JSON files is written in Python! (benchmark)
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Show HN: No-code alternative to Retool, Appsmith, Internal, etc.
I agree that once a project gets a bit more complex, these points are very important.
In our low code platform (https://github.com/dashjoin/platform), you end up writing several JSONata (https://jsonata.org/) snippets for ETL, actions, and visualizations.
These can be tested using junit. All changes to the app can be managed and deployed via GitHub. You can check out our sample app:
GitHub: https://github.com/dashjoin/dashjoin-demo
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Trying to only send some attributes between nodes
Learn more at https://jsonata.org/
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JSONiq: The JSON Query Language
if anyone's here looking for javascript-language json query-er, I've been using jsonata. found it deep and well-thought out, and not too hard to get my head around the syntax
https://jsonata.org
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Introducing MistQL: A miniature embeddable language for performing computations on JSON-like structures
Another one that comes to mind I've used in grafana https://jsonata.org/
What are some alternatives?
PEG.js - PEG.js: Parser generator for JavaScript
gron - Make JSON greppable!
lezer - Dev utils and issues for the Lezer core packages
jmespath.py - JMESPath is a query language for JSON.
ohm - A library and language for building parsers, interpreters, compilers, etc.
gojq - Pure Go implementation of jq
esprima - ECMAScript parsing infrastructure for multipurpose analysis
jq - Command-line JSON processor [Moved to: https://github.com/jqlang/jq]
purescript - A strongly-typed language that compiles to JavaScript
Hacker News API - Documentation and Samples for the Official HN API
lens-toml-parser - Lenses for toml-parser
counsel-jq - Traverse complex JSON and YAML structures with live feedback