PG formatter

This repository contains a parser and formatter of PG format for labeled property graphs and a web application to validate, format, and visualize PG format.

PG format is a text-based serialization of labeled property graphs. See PG specification and PG homepage for details.

Usage

The web application is started via index.html, just open the file in a web browser.

• Query parameter pg can be used to pass a graph in PG format.
• The "permalink" links to the current page with current editor content.
• Examples from directory examples can be loaded by selecting from a dropdown.
• A formatted variant or PG-JSONL can be selected to be shown at the right.

Development

To re-generate the code, install dependencies (npm install) and run:

• npm run peggy to update the parser from src/pg.pegjs
• npm run webpack to update the web application
• nom run docs to update the grammar in EBNF form

Run npm test to execute unit tests.

License

The source code is licensed under MIT License.

References

• https://arxiv.org/abs/1907.03936
• https://arxiv.org/abs/2203.06393 (G2GML)
  • 2.4 Serialization of Property Graphs (pp.5-6)