the cursor.
Note that for CTRL-E and CTRL-Y 'textwidth' is not used, to be
able to copy characters from a long line.
*i_CTRL-_*
CTRL-_ Switch between insert direction, by toggling 'revins'.
CTRL-_ moves the cursor to the end of the typed text.
This command is only available when the 'allowrevins' option
is set.
Please refer to |rileft.txt| for more information about
right-to-left mode.
*i_CTRL-^*
CTRL-^ Toggle the use of typing language characters.
When language |:lmap| mappings are defined:
- If 'iminsert' is 1 (langmap mappings used) it becomes 0 (no
langmap mappings used).
- If 'iminsert' has another value it becomes 1, thus langmap
mappings are enabled.
When no language mappings are defined:
- If 'iminsert' is 2 (Input Method used) it becomes 0 (no
Input Method used).
- If 'iminsert' has another value it becomes 2, thus the Input
Method is enabled.
When set to 1, the value of the "b:keymap_name" variable, the
'keymap' option or "<lang>" appears in the status line.
The language mappings are normally used to type characters
that are different from what the keyboard produces. The
'keymap' option can be used to install a whole number of them.
*i_CTRL-]*
CTRL-] Trigger abbreviation, without inserting a character.
*i_<Insert>*
<Insert> Toggle between Insert and Replace mode.
-----------------------------------------------------------------------
*i_backspacing*
The effect of the <BS>, CTRL-W, and CTRL-U depend on the 'backspace' option
(unless 'revins' is set). This is a comma-separated list of items:
item action ~
indent allow backspacing over autoindent
eol allow backspacing over end-of-line (join lines)
start allow backspacing over the start position of insert; CTRL-W and
CTRL-U stop once at the start position
When 'backspace' is empty, Vi compatible backspacing is used. You cannot
backspace over autoindent, before column 1 or before where insert started.
For backwards compatibility the values "0", "1", "2" and "3" are also allowed,
see |'backspace'|.
If the 'backspace' option does contain "eol" and the cursor is in column 1
when one of the three keys is used, the current line is joined with the
previous line. This effectively deletes the <EOL> in front of the cursor.
*i_CTRL-V_digit*
With CTRL-V the decimal, octal or hexadecimal value of a character can be
entered directly. This way you can enter any character, except a line break
(<NL>, value 10). There are five ways to enter the character value:
first char mode max nr of chars max value ~
(none) decimal 3 255
o or O octal 3 377 (255)
x or X hexadecimal 2 ff (255)
u hexadecimal 4 ffff (65535)
U hexadecimal 8 7fffffff (2147483647)
Normally you would type the maximum number of characters. Thus to enter a
space (value 32) you would type <C-V>032. You can omit the leading zero, in
which case the character typed after the number must be a non-digit. This
happens for the other modes as well: As soon as you type a character that is
invalid for the mode, the value before it will be used and the "invalid"
character is dealt with in the normal way.
If you enter a value of 10, it will end up in the file as a 0. The 10 is a
<NL>, which is used internally to represent the <Nul> character. When writing
the buffer to a file, the <NL> character is translated into <Nul>. The <NL>
character is written at the end of each line. Thus if you want to insert a
<NL> character in a file you will have to make a line break.
Also see 'fileformat'.
*i_CTRL-X* *insert_expand*
CTRL-X enters a sub-mode where several commands can be used. Most of these
commands do keyword completion; see |ins-completion|.
Two commands can be used to scroll the window up or down, without exiting
insert mode:
*i_CTRL-X_CTRL-E*
CTRL-X CTRL-E scroll window one line up.
When doing completion look here: |complete_CTRL-E|
*i_CTRL-X_CTRL-Y*