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In ncurses 6.1, the TERMINAL structure was updated[0] to store data in `int`
instead of `short`, and terminfo definitions for 256-color terminals were
updated from `pairs#32767` to `pairs#0x10000`.
However, since vis stores the value of COLOR_PAIRS in a short (ncurses
internally stores it as an int), it is now overflowing into negative, breaking
color support completely.
The standard `init_pair` entry points still use `short` for their parameters, so
just restrict the pairs to `SHRT_MAX` during allocation.
[0] http://invisible-island.net/ncurses/announce-6.1.html#h4-new-library
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As currently implemented this will only work for operations which are
individually fast, but repeated many times (e.g. `1000000itext<Escape>`).
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Make sure that curses and libtermkey don't fight over
the terminal state. Also send use SIGTSTP instead of
SIGSTOP.
Previously certain shells (e.g. csh, dash) would get
stuck after the editor process was suspended for the
second time.
Not completely sure whether this is correct, but it
seems to work in my limited tests.
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Use pull instead of push based model for display code. Previously view.c
was calling into the ui frontend code, with the new scheme this switches
around: the necessary data is fetched by the ui as necessary.
The UI independent display code is moved out of view.c/ui-curses.c into
vis.c. The cell styles are now directly embedded into the Cell struct.
New UI styles are introduced for:
- status bar (focused / non-focused)
- info message
- window separator
- EOF symbol
You will have to update your color themes.
The terminal output code is further abstracted into a generic ui-terminal.c
part which keeps track of the whole in-memory cell matrix and #includes
ui-terminal-curses.c for the actual terminal output. This architecture
currently assumes that there are no overlapping windows. It will also
allow non-curses based terminal user interfaces.
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