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132 lines
4.7 KiB
Markdown
132 lines
4.7 KiB
Markdown
# vi-mode plugin
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This plugin increase `vi-like` zsh functionality.
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To use it, add `vi-mode` to the plugins array in your zshrc file:
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```zsh
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plugins=(... vi-mode)
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```
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## Settings
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- `VI_MODE_RESET_PROMPT_ON_MODE_CHANGE`: controls whether the prompt is redrawn when
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switching to a different input mode. If this is unset, the mode indicator will not
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be updated when changing to a different mode.
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Set it to `true` to enable it. For example:
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```zsh
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VI_MODE_RESET_PROMPT_ON_MODE_CHANGE=true
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```
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The default value is unset, unless `vi_mode_prompt_info` is used, in which case it'll
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automatically be set to `true`.
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- `VI_MODE_SET_CURSOR`: controls whether the cursor style is changed when switching
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to a different input mode. Set it to `true` to enable it (default: unset):
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```zsh
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VI_MODE_SET_CURSOR=true
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```
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- `MODE_INDICATOR`: controls the string displayed when the shell is in normal mode.
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See [Mode indicator](#mode-indicator) for details.
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- `INSERT_MODE_INDICATOR`: controls the string displayed when the shell is in insert mode.
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See [Mode indicator](#mode-indicator) for details.
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## Mode indicators
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*Normal mode* is indicated with a red `<<<` mark at the right prompt, when it
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hasn't been defined by theme, *Insert mode* is not displayed by default.
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You can change these indicators by setting the `MODE_INDICATOR` (*Normal mode*) and
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`INSERT_MODE_INDICATORS` (*Insert mode*) variables.
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This settings support Prompt Expansion sequences. For example:
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```zsh
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MODE_INDICATOR="%F{white}+%f"
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INSERT_MODE_INDICATOR="%F{yellow}+%f"
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```
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You can also use the `vi_mode_prompt_info` function in your prompt, which will display
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this mode indicator.
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## Key bindings
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Use `ESC` or `CTRL-[` to enter `Normal mode`.
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NOTE: some of these key bindings are set by zsh by default when using a vi-mode keymap.
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### History
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- `ctrl-p` : Previous command in history
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- `ctrl-n` : Next command in history
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- `/` : Search backward in history
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- `n` : Repeat the last `/`
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### Vim edition
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- `vv` : Edit current command line in Vim
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NOTE: this used to be bound to `v`. That is now the default (`visual-mode`).
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### Movement
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- `$` : To the end of the line
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- `^` : To the first non-blank character of the line
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- `0` : To the first character of the line
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- `w` : [count] words forward
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- `W` : [count] WORDS forward
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- `e` : Forward to the end of word [count] inclusive
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- `E` : Forward to the end of WORD [count] inclusive
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- `b` : [count] words backward
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- `B` : [count] WORDS backward
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- `t{char}` : Till before [count]'th occurrence of {char} to the right
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- `T{char}` : Till before [count]'th occurrence of {char} to the left
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- `f{char}` : To [count]'th occurrence of {char} to the right
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- `F{char}` : To [count]'th occurrence of {char} to the left
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- `;` : Repeat latest f, t, F or T [count] times
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- `,` : Repeat latest f, t, F or T in opposite direction
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### Insertion
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- `i` : Insert text before the cursor
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- `I` : Insert text before the first character in the line
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- `a` : Append text after the cursor
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- `A` : Append text at the end of the line
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- `o` : Insert new command line below the current one
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- `O` : Insert new command line above the current one
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### Delete and Insert
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- `ctrl-h` : While in *Insert mode*: delete character before the cursor
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- `ctrl-w` : While in *Insert mode*: delete word before the cursor
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- `d{motion}` : Delete text that {motion} moves over
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- `dd` : Delete line
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- `D` : Delete characters under the cursor until the end of the line
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- `c{motion}` : Delete {motion} text and start insert
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- `cc` : Delete line and start insert
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- `C` : Delete to the end of the line and start insert
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- `r{char}` : Replace the character under the cursor with {char}
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- `R` : Enter replace mode: Each character replaces existing one
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- `x` : Delete `count` characters under and after the cursor
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- `X` : Delete `count` characters before the cursor
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## Known issues
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### Low `$KEYTIMEOUT`
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A low `$KEYTIMEOUT` value (< 15) means that key bindings that need multiple characters,
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like `vv`, will be very difficult to trigger. `$KEYTIMEOUT` controls the number of
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milliseconds that must pass before a key press is read and the appropriate key binding
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is triggered. For multi-character key bindings, the key presses need to happen before
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the timeout is reached, so on low timeouts the key press happens too slow, and therefore
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another key binding is triggered.
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We recommend either setting `$KEYTIMEOUT` to a higher value, or remapping the key bindings
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that you want to trigger to a keyboard sequence. For example:
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```zsh
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bindkey -M vicmd 'V' edit-command-line # this remaps `vv` to `V` (but overrides `visual-mode`)
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```
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