Generated: November 7, 2025
Analysis Type: Comprehensive type dependency analysis including WebIDL primitives, strings, generics, and spec types
Total Specifications Analyzed: 333 WebIDL files (20 WHATWG, 313 W3C/other)

Analysis Date: November 7, 2025
Status: 100% Complete - All WHATWG specs verified and included
Total Specifications Analyzed: 333 WebIDL files

Version 1.0
Status: Definitive Specification
Date: 2025-09-05

This specification defines the View Markup Language (VML), a declarative SGML-based markup language for describing SwiftUI user interface hierarchies. VML provides a static, server-renderable representation of SwiftUI views that can be transmitted over HTTP and interpreted by compliant clients.

1. Element Mapping: SwiftUI view types map 1:1 to VML elements with exact name preservation
2. Attribute Mapping: SwiftUI initializer parameters become VML element attributes
3. Modifier Mapping: SwiftUI view modifiers become comma-separated values in the style attribute
4. Static Content Only: VML represents static UI structure - remove all dynamic bindings, closures, and runtime logic
5. Template System: ViewBuilder closures convert to template/slot patterns using template attributes

Version 1.0
Status: Definitive Specification
Date: 2025-09-05

This specification defines the View Markup Language (VML), a declarative SGML-based markup language for describing SwiftUI user interface hierarchies. VML provides a static, server-renderable representation of SwiftUI views that can be transmitted over HTTP and interpreted by compliant clients.

VML (View Markup Language) is a declarative markup for describing SwiftUI-compatible UI hierarchies. It encodes structure, attributes, and modifiers (via a style string). VML does not encode closures, actions, or control flow; the client runtime handles events and data flow outside of this spec.

This document supersedes earlier drafts and incorporates all refinements, including Templates, attr(...) with CSS‑aligned type(<…>) hints, strict formatting, serialization rules, and an EBNF grammar. It also contains an exhaustive SwiftUI → VML conversion cookbook with before/after examples.

• ALWAYS use .foregroundStyle() instead of deprecated .foregroundColor()
• ALWAYS use .clipShape(.rect(cornerRadius: X)) instead of RoundedRectangle for simple rounded corners
• NEVER use views inside background modifiers - use nested modifiers or enums only
• NEVER use localStorage or sessionStorage in SwiftUI artifacts (not supported)
• NEVER invent APIs that don't exist - verify all modifiers exist in SwiftUI