zsh – Paweł Gościcki

Here is my take on VI mode indicator in zsh’s prompt. This is useful only for people who use the vi mode (bindkey -v) in ZSH.

vim_ins_mode="%{$fg[cyan]%}[INS]%{$reset_color%}"
vim_cmd_mode="%{$fg[green]%}[CMD]%{$reset_color%}"
vim_mode=$vim_ins_mode

function zle-keymap-select {
  vim_mode="${${KEYMAP/vicmd/${vim_cmd_mode}}/(main|viins)/${vim_ins_mode}}"
  zle reset-prompt
}
zle -N zle-keymap-select

function zle-line-finish {
  vim_mode=$vim_ins_mode
}
zle -N zle-line-finish

# Fix a bug when you C-c in CMD mode and you'd be prompted with CMD mode indicator, while in fact you would be in INS mode
# Fixed by catching SIGINT (C-c), set vim_mode to INS and then repropagate the SIGINT, so if anything else depends on it, we will not break it
# Thanks Ron! (see comments)
function TRAPINT() {
  vim_mode=$vim_ins_mode
  return $(( 128 + $1 ))
}

And then it’s a matter of adding ${vim_mode} somewhere in your prompt. For example like this:

RPROMPT='${vim_mode}'

Other examples on the web use zle reset-prompt in the zle-line-init, which has a very nasty side effect of deleting last couple of lines on mode change (when going from ins to cmd mode) when using multi-line prompt. Using zle-line-finish works around that.

Also see my current ~/.zshrc, which includes those tweaks (and many others!).

# VI MODE KEYBINDINGS (ins mode) bindkey -M viins '^a' beginning-of-line bindkey -M viins '^e' end-of-line bindkey -M viins '^k' kill-line bindkey -M viins '^r' history-incremental-pattern-search-backward bindkey -M viins '^s' history-incremental-pattern-search-forward bindkey -M viins '^p' up-line-or-history bindkey -M viins '^n' down-line-or-history bindkey -M viins '^y' yank bindkey -M viins '^w' backward-kill-word bindkey -M viins '^u' backward-kill-line bindkey -M viins '^h' backward-delete-char bindkey -M viins '^?' backward-delete-char bindkey -M viins '^_' undo bindkey -M viins '^x^r' redisplay bindkey -M viins '\eOH' beginning-of-line # Home bindkey -M viins '\eOF' end-of-line # End bindkey -M viins '\e[2~' overwrite-mode # Insert bindkey -M viins '\ef' forward-word # Alt-f bindkey -M viins '\eb' backward-word # Alt-b bindkey -M viins '\ed' kill-word # Alt-d # VI MODE KEYBINDINGS (cmd mode) bindkey -M vicmd '^a' beginning-of-line bindkey -M vicmd '^e' end-of-line bindkey -M vicmd '^k' kill-line bindkey -M vicmd '^r' history-incremental-pattern-search-backward bindkey -M vicmd '^s' history-incremental-pattern-search-forward bindkey -M vicmd '^p' up-line-or-history bindkey -M vicmd '^n' down-line-or-history bindkey -M vicmd '^y' yank bindkey -M vicmd '^w' backward-kill-word bindkey -M vicmd '^u' backward-kill-line bindkey -M vicmd '/' vi-history-search-forward bindkey -M vicmd '?' vi-history-search-backward bindkey -M vicmd '^_' undo bindkey -M vicmd '\ef' forward-word # Alt-f bindkey -M vicmd '\eb' backward-word # Alt-b bindkey -M vicmd '\ed' kill-word # Alt-d bindkey -M vicmd '\e[5~' history-beginning-search-backward # PageUp bindkey -M vicmd '\e[6~' history-beginning-search-forward # PageDown

Category: zsh

VI mode indicator in ZSH prompt

ZSH vi mode with emacs keybindings