PureXML/Sources/Validation/AttributeDeclaration.swift
Mihaela Mihaljevic 5cbe938826 feat(validation): add DTD attribute (ATTLIST) validation
Surface <!ATTLIST> declarations from the parser and validate attributes against
them. Reimplemented from the DTD attribute-list spec; no upstream code copied.

- DocumentType gains attributeLists (raw ATTLIST bodies per element); the
  DoctypeScanner captures them and the EventReader plumbs them through.
- AttributeListParser parses a body into AttributeDeclaration values
  (AttributeType: cdata or enumeration; AttributeDefault: required/implied/
  fixed/value).
- DTDSchema now checks #REQUIRED presence, #FIXED value match (when present),
  and enumerated-value membership, in addition to content models.
- Tokenized types (ID/IDREF/NMTOKEN) parse but are not yet value-enforced.
- 5 attribute tests; 75 total.
2026-06-08 02:07:01 +02:00

10 lines
288 B
Swift

extension PureXML.Validation {
/// One declared attribute from a DTD `<!ATTLIST>`: its name, type, and
/// default declaration.
struct AttributeDeclaration: Equatable {
let name: String
let type: AttributeType
let defaultDecl: AttributeDefault
}
}