rime-previous-schema

local schema_id last_schema_id
for schema_id in ${(k)rime_schema_list} ${(k)rime_schema_list} ; do
  if [[ $schema_id == $rime_schema_id && -n $last_schema_id ]]; then
    break
  fi
  last_schema_id=$schema_id
done
rime selectSchema $rime_session_id $last_schema_id
rime getCurrentSchema $rime_session_id

# ex: filetype=zsh