Create an html table with shorthand syntax

gistfile1.rb

def html_table(tableish)
  unless tableish.map(&:size).uniq.count == 1
    raise 'Must be array of arrays of equal length'
  end

  table = Nokogiri::HTML::DocumentFragment.parse ''

  Nokogiri::HTML::Builder.with(table) { |html|
    html.table {
      if tableish.first.size > 1
        html.thead {
          html.tr {
            tableish.map(&:shift).each { |header| html.th header }
          }
        }
      end
      html.tbody {
        tableish.first.size.times do
          html.tr {
            tableish.map(&:shift).each { |data| html.td { html << data } }
          }
        end
      }
    }
  }

  table.to_html.gsub(/\n\s*/, '')
end

# examples

html_table([['Name', 'Example Project']]) # => <table><thead><tr><th>Name</th></tr></thead><tbody><tr><td>Example Project</td></tr></tbody></table>

html_table([['Name', 'Example Project'],['Tasks', html_table([['Name', 'Example Task', 'Example Task']])]]) # => <table><thead><tr><th>Name</th><th>Tasks</th></tr></thead><tbody><tr><td>Example Project</td><td><table><thead><tr><th>Name</th></tr></thead><tbody><tr><td>Example Task</td></tr><tr><td>Example Task</td></tr></tbody></table></td></tr></tbody></table>