Fix autodetection for extended language identifiers

diff --git a/libs/web/luasrc/dispatcher.lua b/libs/web/luasrc/dispatcher.lua
index 24ce246dfcfe9dab75f7a24b628dac512c263101..5110209aacb21e0ab6781d61b49b016ebe7bce1e 100644 (file)
--- a/libs/web/luasrc/dispatcher.lua
+++ b/libs/web/luasrc/dispatcher.lua
@@ -134,7 +134,8 @@ function dispatch(request)
        local lang = conf.main.lang
        if lang == "auto" then
                local aclang = http.getenv("HTTP_ACCEPT_LANGUAGE") or ""
-               for lpat in aclang:gmatch("[%w]+") do
+               for lpat in aclang:gmatch("[%w-]+") do
+                       lpat = lpat and lpat:gsub("-", "_")
                        if conf.languages[lpat] then
                                lang = lpat
                                break