License

JAFF is released under the MIT License.

MIT License

Copyright 2025 Jaff Contributors

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.

What This Means

The MIT License is a permissive open-source license that allows you to:

Permissions

Commercial Use: Use JAFF in commercial projects
Modification: Modify the source code to suit your needs
Distribution: Distribute JAFF and your modifications
Private Use: Use JAFF for private/internal projects
Sublicense: Include JAFF in projects with different licenses

Conditions

License and Copyright Notice: Include the MIT License and copyright notice in all copies or substantial portions of the software

Limitations

Liability: The authors are not liable for any damages or issues
Warranty: The software is provided "as is" without warranty of any kind

Using JAFF in Your Project

Attribution

When using JAFF in your project, please include:

The MIT License text (shown above)
Copyright notice: "Copyright 2025 Jaff Contributors"

You can include this in:

Your project's LICENSE file
A THIRD_PARTY_LICENSES file
Your software's about/credits section
Your documentation

Example Attribution

In a LICENSE or THIRD_PARTY_LICENSES file:

This project uses JAFF (Just Another Format):

Copyright 2025 Jaff Contributors
Licensed under the MIT License
https://github.com/tgrassi/jaff

In source code:

/*
 * This code was generated using JAFF
 * Copyright 2025 Jaff Contributors
 * Licensed under the MIT License
 * https://github.com/tgrassi/jaff
 */

In documentation:

## Third-Party Software

This project uses [JAFF](https://github.com/tgrassi/jaff) for
code generation, licensed under the MIT License.

Generated Code

Code generated by JAFF is not subject to JAFF's MIT License. The generated code is considered your work and you can license it however you choose.

What this means:

Generated C++/Fortran/Python code is yours
You can use any license for generated code
You can include generated code in proprietary software
No attribution required in generated code (though appreciated!)

What requires attribution:

The JAFF library itself (if you distribute it)
Templates you use that are part of JAFF
Modified versions of JAFF source code

Contributing

By contributing to JAFF, you agree that your contributions will be licensed under the MIT License.

Contributor Agreement

When you submit code to JAFF:

You retain copyright to your contributions
You grant the project a perpetual, worldwide, non-exclusive, royalty-free license
Your contributions will be distributed under the MIT License

See CONTRIBUTING.md for more details.

Acknowledgments

JAFF is built on the shoulders of giants. We thank:

The NumPy, SymPy, and Pandas communities
The Python core developers
The open-source community at large