Features

Rozie tries to be the syntax a Vue developer would design if they wanted React, Svelte, Angular, Solid, and Lit output without losing the SFC ergonomics. The full feature reference lives on the seven pages below; each blurb lists what its page covers.

Page	What it covers
Templates & events	Parameterized event modifiers (.debounce(300), .outside($refs.x)) and the built-in modifier table, custom modifiers via registerModifier, the <listeners> block for window/document wiring, r-match / r-case / r-default switch conditionals (comma alternatives, predicate mode, branch-swap identity, error boundaries), safe non-primitive interpolation (portable JSON, the nullish attribute drop, the safeInterpolation switch, ROZ978), and the smaller wins (r-* naming, rich inline handlers, setup-once reactivity, source maps, optional TypeScript)
Props, state & two-way binding	<props> / <data> with real JS expressions and the literal </script> escape rule, required: true, model: true two-way binding (reading via $props, writing via $model, the Angular ControlValueAccessor contract), and the r-model modifiers .lazy / .number / .trim
Reactivity & lifecycle	$onMount returning a teardown, $computed derived values (bare reads, the plain-function alternative), $memo reference-keyed memoization, $watch (lazy default, { immediate: true }, eager member-chain getters, reference-equality change detection), and $refs with the $onMount + r-if pattern
Composition: slots, fallthrough, context, handles	The <components> block and self-recursion, slots with scoped params (ROZ127), r-bind / r-on fallthrough with $attrs / $listeners and the inherit-attrs / inherit-listeners flags, $expose imperative handles (and how consumers obtain them), $provide / $inject cross-component context, and typed .rozie imports
Engine-wrapper toolkit	The sigils for DOM a vanilla-JS engine owns: $classSelector, r-external + $reconcileAfterDomMutation, $slotted, r-portal (with the Lit theming hazard), $restoreFocus, $snapshot, and $clone
Styling & scoped CSS	The :root { } escape hatch (flat custom properties and the nested engine-DOM form), why :global() is forbidden (ROZ128), :deep() cross-component reach, ::part() across Lit shadow boundaries, and <style lang="scss">
Keyboard navigation (r-keynav)	Compiler-owned keyboard navigation: the two focus models, modifiers, keyboard maps, the accessibility split, active-item styling, grid mode and multi-group scoping, and its diagnostics

Next

See Examples for the full gallery of reference components, each with byte-verbatim output across all six targets, plus a feature index for jumping straight to whichever idiom you want to see in action.

Hit a ROZxxx code in your terminal? The Diagnostics reference lists every diagnostic code — generated from the compiler source, so it's always current — with its severity and cause.