pub fn unescape(s: &str) -> Cow<'_, str>Expand description
Expand the five XML predefined entity references (&, <,
>, ", ') and numeric character references (&#NN;,
&#xNN;) inside s. Intended for callers using
ParseOptions::skip_entity_expansion who want to decode a specific
text payload on demand.
Returns Cow::Borrowed(s) when s contains no & — i.e. the
no-entity case is zero-copy.
General entities declared in a DTD (<!ENTITY foo "...">) are not
expanded here; the helper has no access to the document’s entity table.
If you need DTD-defined entity expansion, don’t enable
skip_entity_expansion in the first place.