~/talk

Code Style Sheets: CSS for Code

Talkat OOPSLA 2025 · 2025-10-16..10-18· [developer-experience, ux-and-product-design]
name:Sam Cohen
links:none on file
slides:none on file

A system that generalizes CSS selectors to ASTs for algebraic data types and a bidirectional view model lets styles target source-level patterns and propagate into many views, implemented for a Haskell subset and demonstrated with 5.7k lines of Haskell and about 1.2k lines of stylesheets. A custom sblock layout compacts nested multiline code while preserving original positions. Examples include semantic highlighting, inline trace values, lint visualizations, and the implementation and artifacts are reproducible.

AI-written summary · about

  1. 0:00Code stylesheets introduction
  2. 3:51Two trees problem
  3. 7:24Stylesheet evaluation semantics
  4. 8:47Solving layout problem
  5. 11:18Demonstrations and examples
  6. 12:00Future work and integration
  7. 12:23Q&A on editing challenges
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