gecko-dev/third_party/rust/xml-rs/design.md

Reader

Basic features:

• Parsing XML 1.0 documents and returning a stream of events
  • Support reading embedded DTD schemas
  • Support for embedded entities
• Support for namespaces and emitting namespace information in events
• [maybe] push-based wrapper
• Missing XML features
  • Support for different encodings
  • Attribute values normalization
  • EOL characters normalization

Advanced features:

• DTD schema validation
• XSD schema validation

Writer

Basic features:

• Writing basic XML 1.0 documents in UTF-8
• Writing XML 1.0 documents with namespace support
• Support for writing elements with empty body as empty elements
• Pretty-printed and compact output
• Writing XML document with embedded DTDs and DTD references
• Misc features:
  • Support for different encodings
  • Support for writing CDATA as characters
  • Checking events for invalid characters (e.g. -- in comments)
  • Check for namespaces more correctly, i.e. check both for prefix and namespace URI
  • Support checking namespace prefix presence in the current namespace for events with prefix but without namespace
  • Support checking namespace prefix for events with both prefix and namespace URI

Other

DOM-based API:

• Basic support for DOM-based API