LPeg-Parsers VS scenebuilder

When I need to parse text with Lua, the first thing I reach for is LPeg. It's great when you can create a standalone expression to parse, say, an IPv4 address, then reuse that in a larger expression. And the data can be transformed as it's being parsed (say, converting a string of digits into an actual integer value).

I have a bunch of Lua modules based around LPeg: https://github.com/spc476/LPeg-Parsers

SceneBuilder, good luck!

Can't argue with that, but to me it seems that things have substantially deteriorated since desktop GUIs fell out of fashion. Maybe that tells you more about my age than about the state of the art, but in the 90's one could "learn" GUI programming in about 30min in a RAD tool by throwing controls in containers and implementing callback functions in "direct style" for the event (Qt , swing, Java/ScalaFX, Gtk, Forms, delphi, …), or do all that in code instead, with objects representing components and inheritance/OOP doing wonders to encapsulate state, expose a type-safe discoverable API, and offer customizability through members override. Entire generations of corporate monks made visually and functionally convincing business apps with VBA in an afternoon for instance.

Yes it does[1] and it works on Desktop, mobile and web.

JavaFX has SceneBuilder[2] which also fit the description but for some reason, it never caught on. Gluon seems to have that work not only on desktop, but also on mobile.

[1] https://docs.flutter.dev/development/tools/devtools/overview

[2] https://gluonhq.com/products/scene-builder/

JavaFX (Desktop) -> Use Scene Builder standalone from Gluon. https://gluonhq.com/products/scene-builder/

Additionally you can learn JavaFX for desktop applications. JavaFX with Gluon Scene Builder (https://gluonhq.com/products/scene-builder/ ).

SceneBuilder

Just run it from source until you figure it out