#autoload

local format raw

_tags messages || return 1

if [[ "$1" = -r ]]; then
  raw=yes
  shift
  format="$1"
else
  zstyle -s ":completion:${curcontext}:messages" format format ||
      zstyle -s ":completion:${curcontext}:descriptions" format format
fi

if [[ -n "$format$raw" ]]; then
  [[ -z "$raw" ]] && zformat -f format "$format" "d:$1" "${(@)argv[2,-1]}"
  builtin compadd -x "$format"
  _comp_mesg=yes
fi