Implements tasks for creating and deleting new sessions, and allows
terminal handler agents to distinguish between sessions.
Includes bits of preparation in drum to more fully support multiple
distinct sessions, but doesn't get it all the way there just yet.
Gall would send %onto gifts to notify about app updates and update
failures. This would end up in dill, which printed some appropriate
text.
Here, we make gall responsible for doing this printing itself (by
having it explicitly ask dill to print some tape/tank), instead of
relying on the receiving end of some bespoke notification protocol.
The previous version allowed for redundant values (both [%bac ~] and
[%key ~ %bac ~] for example), had an odd constraint in @cF, and relied
unnecessarily on $<.
Also rewords some of the belt and blit descriptions.
Previously, we relied on foolish hacks, like [%met %bac], to send
"special" keystrokes with modifiers.
This updates the belt type to have %key, which represents a single
keystroke, with any combination of modifier keys.
Note that this has overlap with %txt to some extent. [%key ~ 'a'] should
be considered equivalent and preferred to [%txt 'a' ~], but updating
existing usage is left to a later commit.
State before: in chrono:userlib, there were second-resolution
@da-to-unix and unix-to-@da functions. In en/dejs:format, there were
millisecond-resolution @da-to-unix and unix-to-@da functions. The
@da-to-unix path in time:enjs confusingly rounded to the nearest
millisecond, meaning millisecond n was a label for [n-0.5, n+0.5) rather
than [n, n+1).
This adds a millisecond-resolution @da-to-unix and unix-to-@da to
chrono:userlib, and a second-resolution conversion to en/dejs:format.
It makes use of the chrono:userlib functions in en/dejs, and doesn't do
any rounding.
Backwards-incompatible changes:
- made unt:chrono:userlib take a @da rather than @.
This simplifies the behavior of individual blits, making their
implementation simpler and giving arvo more control.
This lets us write on top of existing content, instead of completely
replacing the affected row. Additionally, lets us draw starting at the
cursor position, instead of the leftmost column.
To retain the previous behavior, preface with [%hop 0] to move the
cursor to the start of the line, [%wyp ~] to clear the existing content,
and finally your %lin to render it.
styx and stub are both defined in lull. Having functions for dealing
with them in zuse rather than userspace is fitting.
While not a _common_ format per se, it still seems best at home in
+format, instead of on its own.
Some of the remainder are still _presently_ unused, but point at
functionality we want to support again in the near future. The ones
removed here are either redundant or have no clear purpose.
As per the note a couple lines up, +fore depends on drum semantics being
active. We can only guarantee those being present for the default
session, not for any others. So, we print a warning when appropriate.
Before recent dill changes, this wouldn't always be visible, since it
would get drawn in place of (and subsequently get overwritten by) the
prompt. Now that it displays consistently again, it should look a bit
better than just a noun dump.
This is somewhat redundant with gall's own "reloading agent" printfs,
but you know what they say: printfs don't real!
This prepares us for actually making use of multiple session in a sane
way.
Notable implicit change is that we no longer crash on an "unrecognized
duct", instead always handling it as destined for the default session.
