-- we use preloaded text to get a UTF-8 aware 'upper' function

local text = require('text')

-- capitalize level 1 headers

function Header(el)

    if el.level == 1 then

      return pandoc.walk_block(el, {

        Str = function(el)

            return pandoc.Str(text.upper(el.text))

        end })

    end

end

-- replace links with link text

function Link(el)

    return el.content

end

-- remove notes

function Note(el)

    return {}

end