# 11. Implement Linux RSS/Atom feed parser

meta:
  id: native-business-logic-migration-11
  feature: native-business-logic-migration
  priority: P0
  depends_on: [native-business-logic-migration-08]
  tags: [implementation, linux, parsing]

objective:
- Implement RSS 2.0 and Atom 1.0 feed parser for Linux

deliverables:
- feed-parser.vala
- rss-parser.vala
- atom-parser.vala
- feed-type.vala (enum)
- parse-result.vala
- XML parsing utilities

tests:
- Unit: Test RSS 2.0 parsing with sample feeds
- Unit: Test Atom 1.0 parsing with sample feeds
- Unit: Test iTunes namespace handling
- Unit: Test error cases (malformed XML)
- Integration: Test with real-world feeds

acceptance_criteria:
- RSS 2.0 feeds parse correctly
- Atom 1.0 feeds parse correctly
- iTunes namespace handled
- Enclosures extracted properly
- Error handling for malformed feeds
- Performance: <100ms for typical feed

validation:
- Run `meson test -C build`
- Test with known problematic feeds

notes:
- Use libxml2 through Vala bindings
- Handle namespaces properly
- Support both inline and separate content