Hi Hans,

the \usezipfile command doesn’t work work.

I can get rid of one problem when I make the following change in data-zip.lua:

function resolvers.usezipfile(archive)
    local specification = resolvers.splitmethod(archive) -- to be sure
    local archive = specification.filename
    if archive and not registeredfiles[archive] then
        local z = zip.openarchive(archive)
        if z then
            local tree = url.query(specification.query).tree or ""
            if trace_locating then
                report_zip("registering, registering archive '%s'",archive)
            end
            statistics.starttiming(resolvers.instance)
            resolvers.prependhash('zip',archive)
            resolvers.extendtexmfvariable(archive) -- resets hashes too
            registeredfiles[archive] = z
--          instance.files[archive] = resolvers.registerzipfile(z,tree)
            resolvers.instance.files[archive] = resolvers.registerzipfile(z,tree)
            statistics.stoptiming(resolvers.instance)
        elseif trace_locating then
            report_zip("registering, unknown archive '%s'",archive)
        end
    elseif trace_locating then
        report_zip("registering, '%s' not found",archive)
    end
end

Another problem afterward is that context can’t load the file in the zip archive
even though it can find it as seen in the error message:

  ! I can't find file `lipsum.zip?name=tex/context/third/lipsum/lipsum.tex'.

Wolfgang