Optimized uvl.validation

diff --git a/libs/uvl/luasrc/uvl/validation.lua b/libs/uvl/luasrc/uvl/validation.lua
index 50f9da0..90fde64 100644 (file)
--- a/libs/uvl/luasrc/uvl/validation.lua
+++ b/libs/uvl/luasrc/uvl/validation.lua
@@ -14,26 +14,28 @@ $Id$
 
 ]]--
 
-module( "luci.uvl.validation", package.seeall )
+local os = require "os"
+local fs = require "luci.fs"
+local sys = require "luci.sys"
+local ERR = require "luci.uvl.errors"
 
-require("luci.fs")
-require("luci.sys")
+local ipairs, unpack, type, tostring = ipairs, unpack, type, tostring
 
-local ERR = luci.uvl.errors
+module "luci.uvl.validation"
 
 function _exec( bin, args )
        local cmd, output = "", nil
 
        for _, v in ipairs({ bin, unpack(args) }) do
-               cmd = cmd .. string.format("%q ",v):gsub("([%$`])","\\%1")
+               cmd = cmd .. ("%q " % v):gsub("([%$`])","\\%1")
        end
 
-       local tmpfile = "/tmp/uvl" .. luci.sys.uniqueid(8)
+       local tmpfile = "/tmp/uvl" .. sys.uniqueid(8)
        local retval  = os.execute( cmd .. " 1>" .. tmpfile .. " 2>" .. tmpfile )
 
-       if luci.fs.access(tmpfile) then
-               output = luci.fs.readfile(tmpfile)
-               luci.fs.unlink(tmpfile)
+       if fs.access(tmpfile) then
+               output = fs.readfile(tmpfile)
+               fs.unlink(tmpfile)
        end
 
        return retval, output