Problem: Functionality for signs is spread out over several files.
Solution: Move most of the sign functionality into sign.c. (Yegappan
Lakshmanan, closesvim/vim#3751)
bbea47075c
vim-patch:8.0.0714: when a timer causes a command line redraw " goes missing
Problem: When a timer causes a command line redraw the " that is displayed
for CTRL-R goes missing.
Solution: Remember an extra character to display.
a92522fbf3
vim-patch:8.0.0720: unfinished mapping not displayed when running timer
Problem: Unfinished mapping not displayed when running timer.
Solution: Also use the extra_char while waiting for a mapping and digraph.
(closesvim/vim#1844)
6a77d2667eclose#9835
Problem: When 'hlsearch' is set and matching with the last search pattern
is very slow, Vim becomes unusable. Cannot quit search by
pressing CTRL-C.
Solution: When the search times out set a flag and don't try again. Check
for timeout and CTRL-C in NFA loop that adds states.
fbd0b0af68
Rework-of: ea7491586f
Helped-by: Björn Linse <bjorn.linse@gmail.com>
- The old (Vim) use of (char_u **)"" before ea7491586f is garbage,
which hints that this value was never used.
- The necessary condition is next to the NULL assigmnent, the pointer
would only be started to be accessed, if the length assignment next to
it is also changed.
Problem: Cannot act on edits in the command line.
Solution: Add the CmdlineChanged autocommand event. (xtal8, closesvim/vim#2603,
closesvim/vim#2524)
153b704e20
Avoid clearing the screen in most situations. NOT_VALID should be
equivalent to CLEAR unless some external force messed up the terminal,
for these situations <c-l> and :mode will still clear the screen.
Also eliminate some obsolete code in screen.c, that dealt with that in
vim drawing window 1 can mess up window 2, but this never happens in
nvim.
But what about slow terminals? There is two common meanings in which
a terminal is said to be "slow":
Most commonly (and in the sense of vim:s nottyfast) it means low
bandwidth for sending bytes from nvim to the terminal. If the screen is
very similar before and after the update_screen(CLEAR) this change
should reduce bandwidth. If the screen is quite different, but there is
no new regions of contiguous whitespace, clearing doesn't reduce
bandwidth significantly. If the new screen contains a lot of whitespace,
it will depend of if vsplits are used or not: as long as there is no
vsplits, ce is used to cheaply clear the rest of the line, so
full-screen clear is not needed to reduce bandwith. However a left
vsplit currently needs to be padded with whitespace all the way to the
separator. It is possible ec (clear N chars) can be used to reduce
bandwidth here if this is a problem. (All of this assumes that one
doesn't set Normal guibg=... on a non-BCE terminal, if you do you are
doomed regardless of this change).
Slow can also mean that drawing pixels on the screen is slow. E-ink
screens is a recent example. Avoiding clearing and redrawing the
unchanged part of the screen will always improve performance in these
cases.
Problem: One character cmdline abbreviation not triggered after '<,'>.
Solution: Skip over the special range. (Christian Brabandt, closesvim/vim#2320)
5e3423d192
- Checks for ECHOE, ICANON were left over from Vim code. We already
reference the symbols elsewhere without checking.
- newline_on_exit, intr_char: Both are vestigial remnants of Vim 4.x,
not implemented in Nvim. intr_char is a termios/stty feature, it's
probably not useful because users have other ways to configure their
terminals.
