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patch 9.0.0948: 'ttyfast' is set for arbitrary terminals

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Problem:    'ttyfast' is set for arbitrary terminals.
Solution:   Always set 'ttyfast'. (closes #11549)
This commit is contained in:
Bram Moolenaar
2022-11-25 15:09:35 +00:00
parent cc762a48d4
commit c1cf4c9107
9 changed files with 22 additions and 54 deletions
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13
runtime/doc/options.txt
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@@ -8569,10 +8569,7 @@ A jump table for the options with a short description can be found at |Q_op|.
xterm entries...).
*'ttyfast'* *'tf'* *'nottyfast'* *'notf'*
'ttyfast' 'tf' boolean (default off, on when 'term' is xterm, hpterm,
sun-cmd, screen, rxvt, dtterm or
iris-ansi; also on when running Vim in
a DOS console)
'ttyfast' 'tf' boolean (default on)
global
Indicates a fast terminal connection. More characters will be sent to
the screen for redrawing, instead of using insert/delete line
@@ -8582,6 +8579,14 @@ A jump table for the options with a short description can be found at |Q_op|.
line for lines that wrap. This helps when using copy/paste with the
mouse in an xterm and other terminals.
The default used to be set only for some terminal names, but these
days nearly all terminals are fast, therefore the default is now "on".
If you have a slow connection you may want to set this option off,
e.g. depending on the host name: >
if hostname() =~ 'faraway'
set nottyfast
endif
<
*'ttymouse'* *'ttym'*
'ttymouse' 'ttym' string (default depends on 'term')
global

9
runtime/doc/os_unix.txt
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@@ -28,10 +28,11 @@ system() is used, which is a bit slower. The output of ":version" includes
can be changed at compile time.
(For forking of the GUI version see |gui-fork|.)
Because terminal updating under Unix is often slow (e.g. serial line
terminal, shell window in suntools), the 'showcmd' and 'ruler' options
are off by default. If you have a fast terminal, try setting them on. You
might also want to set 'ttyfast'.
For historic reasons terminal updating under Unix is expected to be slow (e.g.
serial line terminal, shell window in suntools), the 'showcmd' and 'ruler'
options are off by default. If you have a fast terminal, try setting them
on: >
set showcmd ruler
When using Vim in an xterm the mouse clicks can be used by Vim by setting
'mouse' to "a". If there is access to an X-server gui style copy/paste will

11
runtime/doc/os_vms.txt
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@@ -458,18 +458,11 @@ Ins, Del buttons etc., except Backspace in GUI mode. To solve it, add to
Vim will also recognize that they are fast terminals.
If you have some annoying line jumping on the screen between windows add to
your .vimrc file: >
set ttyfast " set fast terminal
Note: if you're using Vim on remote host or through a very slow connection, it's
recommended to avoid the fast terminal option with: >
If you're using Vim on remote host or through a very slow connection, you
might want to reset fast terminal option with: >
set nottyfast " set terminal to slow mode
(Zoltan Arpadffy, Vim 5.6)
8.7 Hex-editing and other external tools

5
runtime/doc/term.txt
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@@ -768,8 +768,9 @@ See the "Options" chapter |options|.
If your terminal does not support a scrolling region, but it does support
insert/delete line commands, scrolling with multiple windows may make the
lines jump up and down. If you don't want this set the 'ttyfast' option.
This will redraw the window instead of scroll it.
lines jump up and down. This would happen if the 'ttyfast' option has been
reset. Check that with: >
verbose set ttyfast?
If your terminal scrolls very slowly, but redrawing is not slow, set the
'ttyscroll' option to a small number, e.g., 3. This will make Vim redraw the