fn parse_doc_ref<'a, Pos: StringPosition, MS: STeXModuleStore>(
p: &mut LaTeXParser<'a, Pos, STeXToken<Pos>, STeXParseState<'a, Pos, MS>>,
archive: Option<&ArchiveId>,
relpath: &str,
errpos: Pos,
) -> Option<(DocumentUri, Arc<Path>)>fn parse_doc_ref<'a, Pos: StringPosition, MS: STeXModuleStore>(
p: &mut LaTeXParser<'a, Pos, STeXToken<Pos>, STeXParseState<'a, Pos, MS>>,
archive: Option<&ArchiveId>,
relpath: &str,
errpos: Pos,
) -> Option<(DocumentUri, Arc<Path>)>