My old vi keybindings ZSH Prompt config

.zshrc

bindkey -v
bindkey "^R" history-incremental-search-backward

# zle vi mode indication
# http://pawelgoscicki.com/archives/2012/09/vi-mode-indicator-in-zsh-prompt/
setopt PROMPT_SUBST
vim_ins_mode="-- INSERT --"
vim_cmd_mode=""
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=$vim_ins_mode
}
zle -N zle-line-finish
# Fix a bug when you C-c in CMD mode and you'd be prompted with CMD mode indicator, while in fact you would be in INS mode
# Fixed by catching SIGINT (C-c), set vim_mode to INS and then repropagate the SIGINT, so if anything else depends on it, we will not break it
function TRAPINT() {
        vim_mode=$vim_ins_mode
        return $(( 128 + $1 ))
}

PROMPT='%~ %# '
RPROMPT='${vim_mode}'