ATSynEdit
A multi-line editor control for Lazarus with syntax highlighting, multi-carets, word-wrap, and a mini-map.
What is ATSynEdit?
ATSynEdit is a multi-line editor control component for the Lazarus IDE, offering syntax highlighting, multi-carets, word-wrap, and a mini-map. It serves as a modern, structurally simpler alternative to SynEdit, addressing the need for a feature-rich yet maintainable editor foundation. The component is the core of the CudaText editor, showcasing its suitability for building advanced text editing applications.
Lazarus and Free Pascal developers building text editors, IDEs, or applications requiring sophisticated multi-line text editing with modern features like syntax highlighting and multi-carets.
Developers choose ATSynEdit for its cleaner, less complex architecture compared to SynEdit, combined with out-of-the-box modern editor features such as multi-carets, word-wrap, and a mini-map, making it easier to integrate and extend within Lazarus projects.
Overview
Multi-line editor control, with syntax highlighting, for Lazarus
Use Cases
Best For
- Building custom text editors or IDEs in Lazarus
- Adding syntax highlighting to Free Pascal applications
- Implementing multi-caret editing functionality
- Creating editor components with Sublime Text-style mini-maps
- Developing applications that require inter-line visual elements like bitmaps
- Replacing SynEdit with a simpler, more modern alternative
Not Ideal For
- Projects not using Lazarus or Free Pascal, as it's specifically designed for this IDE and ecosystem
- Teams needing a web-based or cross-platform editor without desktop GUI dependencies
- Developers seeking extensive pre-built plugins or a large third-party extension marketplace
- Applications requiring real-time collaborative editing features out-of-the-box
Pros & Cons
Pros
Has a cleaner, less complex structure than SynEdit with fewer base classes and helper components, making it easier to understand and extend, as noted in the README.
Implements essential features like multi-carets, word-wrap, and a Sublime Text-style mini-map from the start, reducing setup effort for contemporary text editors.
Serves as the foundation for the CudaText editor, demonstrating its robustness and capability in real-world applications, as highlighted in the description.
Allows painting of pictures or bitmaps in inter-line gaps, enabling unique visual customizations not commonly found in similar editor controls.
Cons
Limited to the Lazarus and Free Pascal environment, which has a smaller community and fewer resources compared to more popular frameworks like .NET or JavaScript.
The author admits that internal/hidden complexity of classes is big, which can make deep customization or debugging challenging despite the simpler overall architecture.
Relies on external wiki pages for full documentation, which may be less maintained or comprehensive than integrated help systems, potentially slowing down development.
Open Source Alternative To
ATSynEdit is an open-source alternative to the following products:
Frequently Asked Questions
Related Projects
QDSEquationsDelphi component Equation Editor that allows you to enter and display math formulas
TBCEditorAn editor control for RAD Studio
LazEdit. [FPC] General text editor with syntax highlighting and tools to help edit HTML
SynEdit(mirror at GitHub). [Delphi] Syntax highlighting edit control, not based on the Windows common controls. SynEdit is compatible with both Delphi and Kylix
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