anchor.diff:  }
   
   _luban_options() {
  -  echo `$@ -h 2>/dev/null | awk '/Options:/{p=1;next}/^\s*$/{p=0}p' | grep -o '\-\-\w*'`
  +  echo `$@ -h 2>/dev/null | awk '/Options:/{p=1;next}/^\s*$/{p=0}p' | grep -o '\-\-[A-Za-z0-9_-]*'`
   }
   
   _luban() {
  
positive.code: 
  alias uber='source <%= app_path %>/.envrc'
  alias unset_uber='source <%= app_path %>/.unset_envrc'
  
  uber
  
  
negative.code:     if [ -z "$_luban_comp_opts" ]; then
        _luban_comp_opts=$(_luban_options ${line%% --*})
      fi
  
      if [ -z "$_luban_comp_opts" ]; then
        _luban_comp_cword="__ERROR__"
      else
        _luban_comp_cword="${COMP_CWORD}"
      fi
    fi
  
    COMPREPLY=($(compgen -W "$_luban_comp_opts" -- ${word}))
  