Base.iszeroMethod
    Base.iszero(t::Tuple)

    Extends iszero to Tuple types. Return true iff all elements of t are equal to zero.

    Base.occursinMethod
    Base.occursin(re, char::Char)

    Extends occursin to test if a regular expression re is a match with a Char.

    BibParser.parse_entryMethod
    parse_entry(entry::String; parser::Symbol = :BibTeX)

    Parse a string entry. Default to BibTeX format. No other options available yet (CSL-JSON coming soon).

    For bibliography formats with formatting rules (such as :BibTeX), the check keyword argument can be set to :none (or nothing), :warn, or :error.

    BibParser.parse_fileMethod
    parse_file(path::String; parser::Symbol = :BibTeX)

    Parse a bibliography file. Default to BibTeX format. Other options available: CFF (CSL-JSON coming soon). For bibliography formats with formatting rules (such as :BibTeX), the check keyword argument can be set to :none (or nothing), :warn, or :error.