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#vim_ins_mode="%{$fg[cyan]%}[INS]%{$reset_color%}"
vim_ins_mode=""
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 ))
} 

# Use C-e to open editor with current command line
autoload edit-command-line
zle -N edit-command-line
bindkey '^e' edit-command-line