Editing Module:Yesno

local p = {}
 
function p.yesno( frame )
 
    local retvals = {
        yes   = "yes",
        no    = "",
        ["¬"] = ""
    }
 
    local any = false
    for k,v in pairs( frame.args ) do
        any = true
        retvals[k] = v
    end
 
    val = frame.args[1]
 
    if (val == nil and not any) or val == '¬' then
        return retvals['¬']
    end
 
    val = (val or ''):lower()
 
    if val == '' then
        return retvals['blank'] ~= nil and retvals['blank'] or retvals['no']
    elseif val == 'n' or val == 'no'  or val == '0' then
        return retvals['no']
    elseif val == 'y' or val == 'yes' or val == '1' or retvals['def'] == nil then
        return retvals['yes']
    else
        return retvals['def']
    end
end
 
return p
@@ Line 1: / Line 1: @@
--- Function allowing for consistent treatment of boolean-like wikitext input.
+local p = {}
--- It works similarly to the template {{yesno}}.
+function p.yesno( frame )
-return function (val, default)
-	-- If your wiki uses non-ascii characters for any of "yes", "no", etc., you
+    local retvals = {
-	-- should replace "val:lower()" with "mw.ustring.lower(val)" in the
+        yes   = "yes",
-	-- following line.
+        no    = "",
-	val = type(val) == 'string' and val:lower() or val
+        ["¬"] = ""
-	if val == nil then
+    }
-		return nil
-	elseif val == true
+    local any = false
-		or val == 'yes'
+    for k,v in pairs( frame.args ) do
-		or val == 'y'
+        any = true
-		or val == 'true'
+        retvals[k] = v
-		or val == 't'
+    end
-		or val == 'on'
-		or tonumber(val) == 1
+    val = frame.args[1]
-	then
-		return true
+    if (val == nil and not any) or val == '¬' then
-	elseif val == false
+        return retvals['¬']
-		or val == 'no'
+    end
-		or val == 'n'
-		or val == 'false'
+    val = (val or ''):lower()
-		or val == 'f'
-		or val == 'off'
+    if val == '' then
-		or tonumber(val) == 0
+        return retvals['blank'] ~= nil and retvals['blank'] or retvals['no']
-	then
+    elseif val == 'n' or val == 'no'  or val == '0' then
-		return false
+        return retvals['no']
-	else
+    elseif val == 'y' or val == 'yes' or val == '1' or retvals['def'] == nil then
-		return default
+        return retvals['yes']
-	end
+    else
+        return retvals['def']
+    end
 end
+return p