There is one overview page with one entry per month (currently the
longest thread, could also be an abbreviated list of threads, but not
all of the threads (or we are back where we started).The entries link to
the monthly pages which contain links to all threads with at least one
mail in that month.
A detached signature doesn't make much sense in an email, but may happen
because of improper quoting. Or somebody might really want to send a
signature separate from the signed file.
For multipart related we need to be able to reference the other parts
from the root part by content-id, so we need to pass an argument with
the necessary information (imaginatively called "extra") to the render
function. Of course since this is called indirectly, every render
function needs to accept an extra argument, even if only
render_text_html uses it.
Not sure whether providing a download link for attached images is the
right thing to do - we should probably just display them like inline
images. But we can always change that by a simple change of the
template.
Inline images are very similar to attachments: We just want to store
them somewhere and refer to them. But we want to use a different element
(<img> instead of <a>) or more generally, a different template. So we
pass the disposition as an additional argument to save_part and use it
to construct the template name - which gives as a flurry of new
templates.
Strange combination, but the first message with multipart/alternative
also contained a .scp file and not as an attachment.
The template for multipart/alternative allows switching between the
alternatives.
Peter J. Holzer