-- This module implements {{toolbar}}.  local mArguments -- Lazily initialise [[Module:Arguments]] local mTableTools = require('Module:TableTools') local yesno = require('Module:Yesno')  local p = {}  function p.main(frame)  mArguments = require('Module:Arguments')  local args = mArguments.getArgs(frame)  return p._main(args) end  function p._main(args)  local toolbarItems = p.makeToolbarItems(args)  if not toolbarItems then  -- Return the blank string if no arguments were specified, rather than  -- returning empty brackets.  return ''  elseif yesno(args.span) == false then  return string.format(  '(%s)',  toolbarItems  )  else  return string.format(  '<span class="plainlinks%s"%s>(%s)</span>',  type(args.class) == 'string' and ' ' .. args.class or '',  type(args.style) == 'string' and string.format(' style="%s"', args.style) or '',  toolbarItems  )  end end  function p.makeToolbarItems(args)  local nums = mTableTools.numKeys(args)  local sep = (args.separator or 'pipe') .. '-separator'  sep = mw.message.new(sep):plain()  local ret = {}  for i, v in ipairs(nums) do  ret[#ret + 1] = args[v]  end  if #ret > 0 then  return table.concat(ret, sep)  else  return nil  end end  return p