Module:Toolbar

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local p = {} local args = {}

-- Get the keys of the numerical arguments that are present. local function getArgNums()

   local nums = {}
   for k, v in pairs(args) do
       if type(k) == 'number' then
           table.insert(nums, k)
       end
   end
   table.sort(nums)
   return nums

end

local function makeToolbarItems()

   -- Get numerical argument keys.
   local nums = getArgNums()
   -- Get the separator text.
   local sep = (args.separator or 'pipe') .. '-separator'
   sep = mw.message.new(sep):plain()
   
   -- Generate the toolbar items.
   local ret = 
   for i, v in ipairs(nums) do
       ret = ret .. args[v]
       if nums[i + 1] then
           ret = ret .. sep
       end
   end
   return ret

end

local function makeToolbar()

   local class = (args.class and (' ' .. args.class))  or 
   local style = (args.style and (' style="' .. args.style .. '"')) or 
   
   local ret = ''
       .. '(' .. makeToolbarItems() .. ')'
       .. ''
   
   return ret

end

function p.main(frame)

   -- If called via #invoke, use the args passed into the invoking template.
   -- Otherwise, for testing purposes, assume args are being passed directly in.
   local origArgs
   if frame == mw.getCurrentFrame() then
       origArgs = frame:getParent().args
   else
       origArgs = frame
   end
   
   -- Strip whitespace and remove nil values
   for k, v in pairs(origArgs) do
       v = mw.text.trim(v)
       if v ~=  then
           args[k] = v
       end
   end
   
   return makeToolbar()

end

return p