Elixir Transforms (ExTra)

How it started... 🌱

• Goal: toggle pipelines and map keys
• Wrote Emacs functions to call IEx
• Realized Elixir could do everything
• And the mechanics were extensible

The "Big Idea" 🤯

1. Select code in editor
2. Choose a transform to apply
3. Run associated escript binary
4. Selection replaced by result

Key Concepts 🧐

• Self-contained
• Distributed as binary
• Text-in and text-out
• Minimize logic in editor
• Easy to add transforms
• Support use invarious contexts

The Challenges ⚠️

• Out of scope variables
• Nested structures
• Escape characters
• Editor integration
• Elixir AST nuances

My Process ⚙️

1. Dream big
2. Ask for everything
3. Hone the outcome
4. Provide context for iteration
5. Refine, repeat

Demo 💥

Questions❓

https://github.com/jasonmj/ex_tra