pub fn parse_xml(text: &str) -> Result<Omm, OmmError>Expand description
Parse a CCSDS OMM in XML encoding into an Omm.
Uses the roxmltree DOM reader (which handles the <?xml?> declaration,
namespaces, comments, and entity decoding) and then reads the known CCSDS
leaf elements by name into the shared (key, value) field set, exactly the
representation the KVN tokenizer produces, so both encodings flow through the
single field mapping. The format-set version is taken from the version
attribute on <omm>.