dotfiles-old/dot_oh-my-zsh/plugins/vi-mode

vi-mode plugin

This plugin increase vi-like zsh functionality.

To use it, add vi-mode to the plugins array in your zshrc file:

plugins=(... vi-mode)

Settings

• VI_MODE_RESET_PROMPT_ON_MODE_CHANGE: controls whether the prompt is redrawn when switching to a different input mode. If this is unset, the mode indicator will not be updated when changing to a different mode. Set it to true to enable it. For example:

  VI_MODE_RESET_PROMPT_ON_MODE_CHANGE=true
  

  The default value is unset, unless vi_mode_prompt_info is used, in which case it'll automatically be set to true.

• VI_MODE_SET_CURSOR: controls whether the cursor style is changed when switching to a different input mode. Set it to true to enable it (default: unset):

  VI_MODE_SET_CURSOR=true
  

  See Cursor Styles for controlling how the cursor looks in different modes

• MODE_INDICATOR: controls the string displayed when the shell is in normal mode. See Mode indicators for details.

• INSERT_MODE_INDICATOR: controls the string displayed when the shell is in insert mode. See Mode indicators for details.

• VI_MODE_DISABLE_CLIPBOARD: If set, disables clipboard integration on yank/paste

Mode indicators

Normal mode is indicated with a red <<< mark at the right prompt, when it hasn't been defined by theme, Insert mode is not displayed by default.

You can change these indicators by setting the MODE_INDICATOR (Normal mode) and INSERT_MODE_INDICATORS (Insert mode) variables. This settings support Prompt Expansion sequences. For example:

MODE_INDICATOR="%F{white}+%f"
INSERT_MODE_INDICATOR="%F{yellow}+%f"

Adding mode indicators to your prompt

Vi-mode by default will add mode indicators to RPROMPT unless that is defined by a preceding plugin.

If PROMPT or RPROMPT is not defined to your liking, you can add mode info manually. The vi_mode_prompt_info function is available to insert mode indicator information.

Here are some examples:

source $ZSH/oh-my-zsh.sh

PROMPT="$PROMPT\$(vi_mode_prompt_info)"
RPROMPT="\$(vi_mode_prompt_info)$RPROMPT"

Note the \$ here, which importantly prevents interpolation at the time of defining, but allows it to be executed for each prompt update event.

Cursor Styles

You can control the cursor style used in each active vim mode by changing the values of the following variables.

# defaults
VI_MODE_CURSOR_NORMAL=2
VI_MODE_CURSOR_VISUAL=6
VI_MODE_CURSOR_INSERT=6
VI_MODE_CURSOR_OPPEND=0

• 0, 1 - Blinking block
• 2 - Solid block
• 3 - Blinking underline
• 4 - Solid underline
• 5 - Blinking line
• 6 - Solid line

Key bindings

Use ESC or CTRL-[ to enter Normal mode.

NOTE: some of these key bindings are set by zsh by default when using a vi-mode keymap.

History

• ctrl-p : Previous command in history
• ctrl-n : Next command in history
• / : Search backward in history
• n : Repeat the last /

Vim edition

• vv : Edit current command line in Vim

NOTE: this used to be bound to v. That is now the default (visual-mode).

Movement

• $ : To the end of the line
• ^ : To the first non-blank character of the line
• 0 : To the first character of the line
• w : [count] words forward
• W : [count] WORDS forward
• e : Forward to the end of word [count] inclusive
• E : Forward to the end of WORD [count] inclusive
• b : [count] words backward
• B : [count] WORDS backward
• t{char} : Till before [count]'th occurrence of {char} to the right
• T{char} : Till before [count]'th occurrence of {char} to the left
• f{char} : To [count]'th occurrence of {char} to the right
• F{char} : To [count]'th occurrence of {char} to the left
• ; : Repeat latest f, t, F or T [count] times
• , : Repeat latest f, t, F or T in opposite direction

Insertion

• i : Insert text before the cursor
• I : Insert text before the first character in the line
• a : Append text after the cursor
• A : Append text at the end of the line
• o : Insert new command line below the current one
• O : Insert new command line above the current one

Delete and Insert

• ctrl-h : While in Insert mode: delete character before the cursor
• ctrl-w : While in Insert mode: delete word before the cursor
• d{motion} : Delete text that {motion} moves over
• dd : Delete line
• D : Delete characters under the cursor until the end of the line
• c{motion} : Delete {motion} text and start insert
• cc : Delete line and start insert
• C : Delete to the end of the line and start insert
• P : Insert the contents of the clipboard before the cursor
• p : Insert the contents of the clipboard after the cursor
• r{char} : Replace the character under the cursor with {char}
• R : Enter replace mode: Each character replaces existing one
• x : Delete count characters under and after the cursor
• X : Delete count characters before the cursor

NOTE: delete/kill commands (dd, D, c{motion}, C, x,X) and yank commands (y, Y) will copy to the clipboard. Contents can then be put back using paste commands (P, p).

Known issues

Low $KEYTIMEOUT

A low $KEYTIMEOUT value (< 15) means that key bindings that need multiple characters, like vv, will be very difficult to trigger. $KEYTIMEOUT controls the number of milliseconds that must pass before a key press is read and the appropriate key binding is triggered. For multi-character key bindings, the key presses need to happen before the timeout is reached, so on low timeouts the key press happens too slow, and therefore another key binding is triggered.

We recommend either setting $KEYTIMEOUT to a higher value, or remapping the key bindings that you want to trigger to a keyboard sequence. For example:

bindkey -M vicmd 'V' edit-command-line # this remaps `vv` to `V` (but overrides `visual-mode`)