local r_include = "')\ninclude('%s')\nwrite('"
local r_i18n = "'..translate('%1','%2')..'"
local r_uci = "'..config('%1','%2','%3')..'"
- local r_pexec = "'..%s..'"
+ local r_pexec = "'..(%s or '')..'"
local r_exec = "')\n%s\nwrite('"
-- Parse the expressions