PP - A generic Preprocessor VS Gema - compare differences & reviews?

P is a text preprocessor designed for Pandoc (and more generally Markdown and reStructuredText).

General purpose text macro processor.

Flexibility
PP allows for extensive customization and flexibility in preprocessing tasks, enabling users to tailor the tool to their specific preprocessing needs.
Wide Language Support
PP is designed to work with a variety of programming languages, making it suitable for diverse coding environments and projects.
Open Source
As an open-source tool, PP is free to use and can be modified according to user requirements, promoting community collaboration and continuous improvement.
Simplicity
The tool provides a simple syntax and usage pattern, making it accessible to users who need efficient preprocessing without a steep learning curve.

Limited Documentation
PP's documentation might not be as comprehensive as some users would prefer, potentially making it difficult for newcomers to take full advantage of its features.
User Support
Being a less mainstream tool, PP may not have as large a user community for support, which could make troubleshooting more challenging.
Performance
For very large projects, PP may not be as optimized as other preprocessors specifically designed for high performance, possibly affecting execution speed.

Open Source
Gema is open-source, meaning its source code is freely available for modification, distribution, and use, providing flexibility for customization and improvements by the community.
Text Processing Capabilities
Gema is capable of processing text through macro expansion, which allows for efficient handling and transformation of text data input.
Portability
As a lightweight tool, Gema can be used on various operating systems without requiring extensive system resources or dependencies, enhancing its usability across different environments.

Limited Functionality
Gema is specifically designed for macro processing, which may not be suitable for users seeking a more comprehensive text processing or scripting tool.
Learning Curve
For new users, understanding and effectively using Gema's macro processing capabilities may present a learning curve, especially for those unfamiliar with macro languages.
Minimal Documentation
Gema's documentation may not be as comprehensive as more widely used tools, potentially making it challenging for users to find assistance or detailed instructions.