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doc: Relegate xterm-8bit to a removed feature.

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This commit is contained in:
Jonathan de Boyne Pollard 2017-05-24 19:56:12 +01:00
parent ede4d620de
commit 6be921b71c
2 changed files with 8 additions and 14 deletions
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14
runtime/doc/term.txt
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@ -69,20 +69,6 @@ them as a cursor key. When you type you normally are not that fast, so they
are recognized as individual typed commands, even though Vim receives the same are recognized as individual typed commands, even though Vim receives the same
sequence of bytes. sequence of bytes.
*xterm-8bit* *xterm-8-bit*
Xterm can be run in a mode where it uses 8-bit escape sequences. The CSI code
is used instead of <Esc>[. The advantage is that an <Esc> can quickly be
recognized in Insert mode, because it can't be confused with the start of a
special key.
For the builtin termcap entries, Vim checks if the 'term' option contains
"8bit" anywhere. It then uses 8-bit characters for the termcap entries, the
mouse and a few other things. You would normally set $TERM in your shell to
"xterm-8bit" and Vim picks this up and adjusts to the 8-bit setting
automatically.
When Vim receives a response to the "request version" sequence and it
starts with CSI, it assumes that the terminal is in 8-bit mode and will
convert all key sequences to their 8-bit variants.
============================================================================== ==============================================================================
Window size *window-size* Window size *window-size*

8
runtime/doc/vim_diff.txt
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@ -281,6 +281,14 @@ Nvim does not have special `t_XX` options nor <t_XX> keycodes to configure
terminal capabilities. Instead Nvim treats the terminal as any other UI. For terminal capabilities. Instead Nvim treats the terminal as any other UI. For
example, 'guicursor' sets the terminal cursor style if possible. example, 'guicursor' sets the terminal cursor style if possible.
*xterm-8bit* *xterm-8-bit*
Xterm can be run in a mode where it uses true 8-bit CSI. Supporting this
requires autodetection of whether the terminal is in UTF-8 mode or non-UTF-8
mode, as the 8-bit CSI character has to be written differently in each case.
Vim issues a "request version" sequence to the terminal at startup and looks
at how the terminal is sending CSI. Nvim does not issue such a sequence and
always uses 7-bit control sequences.
'ttyfast': 'ttyfast':
":set ttyfast" is ignored ":set ttyfast" is ignored
":set nottyfast" is an error ":set nottyfast" is an error