Module:Yesno: Difference between revisions

@@ Line 1: / Line 1: @@
--- This is a simplified, Lua-only replacement for the template {{yesno}}. It provides a consistent
+-- Function allowing for consistent treatment of boolean-like wikitext input.
--- interface for users entering boolean or boolean-style input.
+-- It works similarly to the template {{yesno}}.
 return function (val, default)
-    val = type(val) == 'string' and mw.ustring.lower(val) or val -- put in lower case
+	-- If your wiki uses non-ascii characters for any of "yes", "no", etc., you
-    if not val or val == 'no' or val == 'n' or val == 'false' or tonumber(val) == 0 then
+	-- should replace "val:lower()" with "mw.ustring.lower(val)" in the
-        return false
+	-- following line.
-    elseif val == true or val == 'yes' or val == 'y' or val == 'true' or tonumber(val) == 1 then
+	val = type(val) == 'string' and val:lower() or val
-        return true
+	if val == nil then
-    elseif default ~= nil then
+		return nil
-        return default
+	elseif val == true
-    else
+		or val == 'yes'
-        return true
+		or val == 'y'
-    end
+		or val == 'true'
+		or val == 't'
+		or val == 'on'
+		or tonumber(val) == 1
+	then
+		return true
+	elseif val == false
+		or val == 'no'
+		or val == 'n'
+		or val == 'false'
+		or val == 'f'
+		or val == 'off'
+		or tonumber(val) == 0
+	then
+		return false
+	else
+		return default
+	end
 end

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