We got some errors when some of the key values exceeded the Xapian
maximum; in particular the message-id.
So make all the key-methods check, and truncate the message-id if
necessary.
Since cd649efb6b, opening an unread message first does a proc-move,
then proc-view.
Reason is that while we get the (:update ... ) from the move, that only
contains a skeleton message; we need the full view get images etc. This
means that we render the message _twice_.
Here we change add a flag for move to _not_ send the (:update ..), so
only the (:view ...) will trigger rendering of the message.
When we render URLs like https://gnu.org/[1] right-clicking on them in
e.g. GNOME Terminal will also copy the "[1]" as well as the URL,
inserting zero-width-space[1] between the two avoids this.
I know about "g" (mu4e-view-go-to-url), but sometimes I want to open a
URL in a different browser, or copy it into a non-Emacs program. This
makes that easier. I think this improves the UI at a very trivial cost
to users that don't care about this use-case.
I could make this configurable, but unless someone vehemently objects
to this I don't see the point of not just making it the default.
In GNOME Terminal a ZWS is rendered simply as a space, and
copy/pasting works as expected, but in Emacs's GTK GUI there's no
space between the two.
This was initially a plain ASCII space character, but djcb preferred a
ZWP, and this works as well.
1. https://en.wikipedia.org/wiki/Zero-width_space
Drop support for guile2.0 -- mostly because it's installation is
different enough between distros that it seems a bit too much work to
keep both that and guile2.2 working.
Define the view-mode (gnus or internal) just before it's needed. This
ensures that (when in gnus mode) it's really a gnus-article-mode
derivative, so more of the gnus specifics work.
Use an update guile.m4; it seems different systems (Fedora, arch,
gentoo, ...) have guile installed under different names. Try to handle
all of those.
For this, we include the upstream guile.m4 and add support for
guile-snarf.
The old code directly hacked around with ido-read-directory to achieve
its smarts. However other completion methods are available so this
re-factors the code to use an appropriately predicated completing-read
with a new history variable which is just used for patch application.
We were transforming wild-card searches into regular-expression
searches; while that works, it's also significantly slower.
So, instead, special-case wildcards, and use the Xapian machinery for
wildcard queries.
Re-use `mu4e-headers-thread-orphan-prefix' for the prefix for the
first sibling in the orphan thread and add
`mu4e-headers-thread-single-orphan-prefix' as the prefix of single orphans.
