npmpackage.info

Gathering detailed insights and metrics for nearley

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Gathering detailed insights and metrics for nearley

nearley

📜🔜🌲 Simple, fast, powerful parser toolkit for JavaScript.

2.20.1

3,634

MIT

JavaScript

2.66 kB

772,146,867 5.4

Installations

npm install nearley

Score

96.9

Supply Chain

92.5

Quality

Maintenance

100

Vulnerability

100

License

Pull Requests

Open

31

Total

196

Closed

51

Merged

114

Issues

Open

164

Total

454

Closed

290

Releases

Zenodo

zenodo-2

Published on 17 Jun 2020

View all 1 releases

Developer

hardmath123

Developer Guide

BETA

Module System

CommonJS

Min. Node Version

Typescript Support

No

Node Version

15.2.1

NPM Version

7.0.10 Statistics

3,634 Stars

1,085 Commits

231 Forks

45 Watching

3 Branches

50 Contributors

Updated on 26 Nov 2024

Bundle Size

7.32 kB

Minified

2.66 kB

Minified + Gzipped

Bundlephobia

Languages

JavaScript (55.47%)

HTML (33.86%)

Nearley (7.96%)

CSS (2.71%)

Total Downloads

Cumulative downloads

Total Downloads

772,146,867

Last day

-10.4%

590,293

Compared to previous day

Last week

2.7%

3,412,522

Compared to previous week

Last month

12.4%

13,741,731

Compared to previous month

Last year

1.3%

136,478,553

Compared to previous year

Daily Downloads

Weekly Downloads

Monthly Downloads

Yearly Downloads

Dependencies

commander moo railroad-diagrams randexp

Dev Dependencies

@types/moo @types/node babel-cli babel-preset-env benchr coffee-script doctoc expect microtime mocha typescript

Versions

nearley ↗️

nearley is a simple, fast and powerful parsing toolkit. It consists of:

nearley is a streaming parser with support for catching errors gracefully and providing all parsings for ambiguous grammars. It is compatible with a variety of lexers (we recommend moo). It comes with tools for creating tests, railroad diagrams and fuzzers from your grammars, and has support for a variety of editors and platforms. It works in both node and the browser.

Unlike most other parser generators, nearley can handle any grammar you can define in BNF (and more!). In particular, while most existing JS parsers such as PEGjs and Jison choke on certain grammars (e.g. left recursive ones), nearley handles them easily and efficiently by using the Earley parsing algorithm.

nearley is used by a wide variety of projects:

artificial intelligence and
computational linguistics classes at universities;
file format parsers;
data-driven markup languages;
compilers for real-world programming languages;
and nearley itself! The nearley compiler is bootstrapped.

nearley is an npm staff pick.

Documentation

Please visit our website https://nearley.js.org to get started! You will find a tutorial, detailed reference documents, and links to several real-world examples to get inspired.

Contributing

Please read this document before working on nearley. If you are interested in contributing but unsure where to start, take a look at the issues labeled "up for grabs" on the issue tracker, or message a maintainer (@kach or @tjvr on Github).

nearley is MIT licensed.

A big thanks to Nathan Dinsmore for teaching me how to Earley, Aria Stewart for helping structure nearley into a mature module, and Robin Windels for bootstrapping the grammar. Additionally, Jacob Edelman wrote an experimental JavaScript parser with nearley and contributed ideas for EBNF support. Joshua T. Corbin refactored the compiler to be much, much prettier. Bojidar Marinov implemented postprocessors-in-other-languages. Shachar Itzhaky fixed a subtle bug with nullables.

Citing nearley

If you are citing nearley in academic work, please use the following BibTeX entry.

1@misc{nearley,
2    author = "Kartik Chandra and Tim Radvan",
3    title  = "{nearley}: a parsing toolkit for {JavaScript}",
4    year   = {2014},
5    doi    = {10.5281/zenodo.3897993},
6    url    = {https://github.com/kach/nearley}
7}

No vulnerabilities found.

10

Vulnerabilities

Determines if the project has open, known unfixed vulnerabilities.

10

Token-Permissions

Determines if the project's workflows follow the principle of least privilege.

10

License

Determines if the project has defined a license.

10

Dangerous-Workflow

Determines if the project's GitHub Action workflows avoid dangerous patterns.

10

Pinned-Dependencies

Determines if the project has declared and pinned its dependencies.

10

Binary-Artifacts

Determines if the project has generated executable (binary) artifacts in the source repository.

1

Code-Review

Determines if the project requires code review before pull requests (aka merge requests) are merged.

1

Maintained

Determines if the project is "actively maintained".

0

CII-Best-Practices

Determines if the project has a CII Best Practices Badge.

0

Branch-Protection

Determines if the default and release branches are protected with GitHub's branch protection settings.

0

Security-Policy

Determines if the project has published a security policy.

0

Dependency-Update-Tool

Determines if the project uses a dependency update tool.

Score

5.4

/10

Last Scanned on 2022-08-15

The Open Source Security Foundation is a cross-industry collaboration to improve the security of open source software (OSS). The Scorecard provides security health metrics for open source projects.

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