PLDB: a Programming Language Database

PLDB is a public domain database and website containing over 100,000 facts about over 4,000 programming languages.

This repo contains the entire database, code, and website for https://pldb.com.

To analyze the data

The PLDB database is freely available:

• As CSV: https://pldb.com/pldb.csv
• As JSON: https://pldb.com/pldb.json
• The JSON file is also available via npm:

// npm install pldb
console.log(require("pldb").javascript.appeared)

Documentation for the CSV is available here: https://pldb.com/docs/csv.html.

To add a new language

Easy method: https://build.pldb.com/create

Advanced method: Create a new file in database/things with a unique URL friendly filename ending in .pldb and send a pull request.

To update a language

Easy method: https://build.pldb.com/

Advanced method: Edit the corresponding database/things/*.pldb file and send a pull request.

To add a new column

Advanced method: Edit or create a new file in database/grammar and add at least 1 example to an entity in database/things and send a pull request.

To build the full site locally

git clone https://github.com/breck7/pldb
cd pldb
npm install .
npm run tsc
npm run build
(Optional run TESTS): npm run test
open site/index.html

To explore this repo

The most important folder is database/things/, which contains a file for each entity. The folder database/grammar/ contains the grammar files (schema) for the database.

The website content is in the site folder.

The code folder contains importer scripts and other code for the database and site.

You can see the cloc language stats on this repo at https://pldb.com/pages/about.html.

To cite PLDB

PLDB content is published to the public domain and you can use it freely. If needed, here are 3 options for citing PLDB:

https://pldb.com

Breck Yunits et al. (2022) - "PLDB: a Programming Language Database". Retrieved from: 'https://pldb.com' [Online Resource]

@article{pldb,
  author = {Breck Yunits et al.},
  title = {PLDB: a Programming Language Database},
  journal = {PLDB},
  year = {2022},
  note = {https://pldb.com}
 }

All sources for PLDB can be found here: https://pldb.com/pages/acknowledgements.html