Module:Collapsible list

-- This module implements .

local p = {}

local function getListItem( data )

   if not type( data ) == 'string' then
       return 
   end

return mw.ustring.format( '

%s

', data ) end -- Returns an array containing the keys of all positional arguments -- that contain data (i.e. non-whitespace values). local function getArgNums( args ) local nums = {} for k, v in pairs( args ) do if type( k ) == 'number' and k >= 1 and math.floor( k ) == k and type( v ) == 'string' and mw.ustring.match( v, '%S' ) then table.insert( nums, k ) end end table.sort( nums ) return nums end -- Formats a list of classes, styles or other attributes. local function formatAttributes( attrType, ... ) local attributes = { ... } local nums = getArgNums( attributes ) local t = {} for i, num in ipairs( nums ) do table.insert( t, attributes[ num ] ) end if #t == 0 then return -- Return the blank string so concatenation will work. end return mw.ustring.format( ' %s="%s"', attrType, table.concat( t, ' ' ) ) end local function buildList( args ) -- Get the list items. local listItems = {} local argNums = getArgNums( args ) for i, num in ipairs( argNums ) do table.insert( listItems, getListItem( args[ num ] ) ) end if #listItems == 0 then return end listItems = table.concat( listItems ) -- Get class, style and title data. local div1class = formatAttributes( 'class', 'NavFrame', not args.expand and 'collapsed' ) local div1style = formatAttributes( 'style', args.frame_style, args.framestyle, not ( args.frame_style or args.framestyle ) and 'border: none; padding: 0;' ) local div2class = formatAttributes( 'class', 'NavHead' ) local div2style = formatAttributes( 'style', 'font-size: 105%;', args.title_style, args.titlestyle, not ( args.title_style or args.titlestyle ) and 'background: transparent; text-align: left;' ) local title = args.title or 'List' local ulclass = formatAttributes( 'class', 'NavContent', args.hlist and 'hlist' ) local ulstyle = formatAttributes( 'style', not args.bullets and 'list-style: none none; margin-left: 0;', args.list_style, args.liststyle, not ( args.list_style or args.liststyle ) and 'text-align: left;', 'font-size: 105%; margin-top: 0; margin-bottom: 0; line-height: inherit;' ) -- Build the list. return mw.ustring.format( '<div%s%s>\n<div%s%s>%s\n<ul%s%s>%s\n',

       div1class, div1style, div2class, div2style, title, ulclass, ulstyle, listItems
   )

end

function p.main( frame )

   local origArgs
   if frame == mw.getCurrentFrame() then
       origArgs = frame:getParent().args
       for k, v in pairs( frame.args ) do
           origArgs = frame.args
           break
       end
   else
       origArgs = frame
   end
   
   local args = {}
   for k, v in pairs( origArgs ) do
       if type( k ) == 'number' or v ~=  then
           args[ k ] = v
       end
   end
   return buildList( args )

end

return p