function zle-line-init zle-keymap-select {
   zle reset-prompt
 }
 
 zle -N zle-line-init
 zle -N zle-keymap-select
 
 bindkey -v
 
 # if mode indicator wasn't setup by theme, define default
 if [[ "$MODE_INDICATOR" == "" ]]; then
   MODE_INDICATOR="%{$fg_bold[red]%}<%{$fg[red]%}<<%{$reset_color%}"
 fi
 
 function vi_mode_prompt_info() {
   echo "${${KEYMAP/vicmd/$MODE_INDICATOR}/(main|viins)/}"
 }
 
 # define right prompt, if it wasn't defined by a theme
 if [[ "$RPS1" == "" && "$RPROMPT" == "" ]]; then
   RPS1='$(vi_mode_prompt_info)'
 fi