function show_result(mp, msg)
	mod_query.message(mp, msg)
end

function my_exec_handler(mp, cmd)
	ioncore.defer(
		function ()
			local f = io.popen(cmd, 'r')
			if not f then
				show_result(mp, 'error executing command: ' .. cmd)
				return
			end
			local s = f:read('*a')
			if s then 
				show_result(mp, s)
			else
				show_result(mp, 'no output')
			end
			f:close()
		end
	)
end

function exec_and_show(mplex)
	mod_query.query(mplex, TR("Exec and display:"), nil, my_exec_handler, 
		mod_query.exec_completor, "execdisplay")
end

defbindings("WMPlex", {
	bdoc("Execute a command and show the result."),
	kpress(MOD1.."F4", "exec_and_show(_)"),
})