Two example animations can be found here . Editor Combinators Just as parser combinators replace parser generator tools, it will become possible to replace tools for generating structure editors with editor combinators. Galley Concepts in Document Formatting Combinators Galleys are the central concept of the document formatting system Lout developed by Jeff Kingston , and allow high-level programming of document styles. I have started to explore a purely functional formulation of galley behaviour, which might, in the future, lead to an even nicer successor system to Lout. A Haskell library RATH for exploring non-standard relation algebras.
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