tengri is a metaframework for building interactive applications with rust. (aren't we all?)

tengri is developed as part of tek, a music program for terminals.

tengri contains:

• dizzle, a framework for defining domain-specific languages
• output, an abstract UI layout framework
• input, an abstract UI event framework
• tui, an implementation of tengri over ratatui.

as well as:

• core, the shared definitions ("utils") module
• proc, the space for procedural macros
• tengri, the top-level reexport crate

tengri is published under AGPL3.

Input

tengri_input is where tengri's input handling is defined.

the following items are provided:

• Input trait, for defining for input sources
• Handle trait and handle! macro, for defining input handlers
• Command trait and the command! macro, for defining commands that inputs may result in

Output

tengri_output is an abstract interface layout framework.

it expresses the following notions:

• space: Direction, Coordinate, Area, Size, Measure

• output: Out, Draw, Content

  • the layout operators are generic over Draw and/or Content
  • the traits Draw and Content are generic over Out
  • implement Out to bring a layout to a new backend: see TuiOut in tengri_tui

• layout:

  • conditionals: When, Either
  • iteration: Map
  • concatenation: Bsp
  • positioning: Align, Push, Pull
  • sizing: Fill, Fixed, Expand, Shrink, Min, Max
  • implement custom components (that may be backend-dependent): see tui_content in tengri_tui