Editing Module:Yesno

local p = {}
 
function p.yesno( frame )
 
    -- defaults
    local retvals = {
        yes   = "yes",
        no    = "",
        ["¬"] = ""
    }
 
    -- Allow arguments to override defaults.
    -- 'any' tracks the presence of any arguments at all.
    local any = false
    for k,v in pairs( frame.args ) do
        any = true
        retvals[k] = v
    end
 
    val = frame.args[1]
 
    -- According to the template docs, the input should be considered nil
    -- only when no params were provided. If any params at all were present,
    -- the value must be considered blank. A bit weird, if you ask me.
    if (val == nil and not any) or val == '¬' then
        return retvals['¬']
    end
 
    val = (val or ''):lower()          -- Coerce to blank if nil; make lowercase.
    val = val:match'^%s*(.*%S)' or ''  -- Trim whitespace.
 
    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
+    -- defaults
-	-- should replace "val:lower()" with "mw.ustring.lower(val)" in the
+    local retvals = {
-	-- following line.
+        yes   = "yes",
-	val = type(val) == 'string' and val:lower() or val
+        no    = "",
-	if val == nil then
+        ["¬"] = ""
-		return nil
+    }
-	elseif val == true
-		or val == 'yes'
+    -- Allow arguments to override defaults.
-		or val == 'y'
+    -- 'any' tracks the presence of any arguments at all.
-		or val == 'true'
+    local any = false
-		or val == 't'
+    for k,v in pairs( frame.args ) do
-		or val == 'on'
+        any = true
-		or tonumber(val) == 1
+        retvals[k] = v
-	then
+    end
-		return true
-	elseif val == false
+    val = frame.args[1]
-		or val == 'no'
-		or val == 'n'
+    -- According to the template docs, the input should be considered nil
-		or val == 'false'
+    -- only when no params were provided. If any params at all were present,
-		or val == 'f'
+    -- the value must be considered blank. A bit weird, if you ask me.
-		or val == 'off'
+    if (val == nil and not any) or val == '¬' then
-		or tonumber(val) == 0
+        return retvals['¬']
-	then
+    end
-		return false
-	else
+    val = (val or ''):lower()          -- Coerce to blank if nil; make lowercase.
-		return default
+    val = val:match'^%s*(.*%S)' or ''  -- Trim whitespace.
-	end
+    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