.zsh/title.zsh


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function _title {
  [[ "$TERM" =~ "xterm" ]] && print -Pn "\033]0;$@\a"
}

function title {
  if [[ -n "$1" ]]; then
    _title_custom=1
    _title $@
  else
    unset _title_custom
    _title_precmd
  fi
}

function _title_preexec {
  [[ -z "$_title_custom" ]] && _title "$1"
}

unset _title_host
[[ -n "$SSH_CLIENT" ]] && _title_host='%m:'

function _title_precmd {
  [[ -z "$_title_custom" ]] && _title '$_title_host%1~'
}

typeset -ga preexec_functions
typeset -ga precmd_functions

preexec_functions+='_title_preexec'
precmd_functions+='_title_precmd'