Module:ItemData/nav: Difference between revisionsGive feedback

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 local function get_language_from_subpage()
-     -- Get the current page title
+     -- Get the full page path (including subpages)
-     local page_title = mw.title.getCurrentTitle().text
+     local full_page_name = mw.title.getCurrentTitle().fullText
-     -- Check if the page is a subpage (e.g., "Items/ru")
+     -- Split path by slashes
-     local subpage_lang = page_title:match("/(%a%a)$") -- Match two-letter language code at the end of the subpage
+     local parts = {}
+    for part in full_page_name:gmatch("[^/]+") do
+        table.insert(parts, part)
+    end
-     -- If a language code is found, return it; otherwise, default to English ("en")
+     -- Last part - potential language code
-     return subpage_lang or "en"
+    local last_part = parts[#parts] or ""
+    -- Check for language codes matching:
+    -- 1. Exactly 2 letters (like 'ru'), OR
+    -- 2. 2 letters + hyphen + any characters (like 'zh-hans')
+    if last_part:match("^[a-z][a-z]$") or last_part:match("^[a-z][a-z]%-[%w]+$") then
+        -- Convert to lowercase and replace _ with -
+        return last_part:lower():gsub("_", "-")
+    end
+     return "en" -- Default to English
 end