Function parse_xml_catalog 

pub fn parse_xml_catalog(
    path: &Path,
    xml: &str,
) -> Result<XmlCatalog, XmlCatalogError>

Parse a Protégé/Oasis catalog XML document.

Nested nextCatalog entries are jailed to the catalog file’s parent directory (use parse_xml_catalog_in_workspace when a workspace root is known).