f.name = 'informalfigure'
end
+log 0, 'assigning IDs to formal figures
+seq = 1
+xml.css('figure').each do |fig|
+ fig['id'] = 'fig-%d' % seq
+ seq = seq + 1
+end
+
log 0, 'Writing processed file'
# Unable to figure out API way to replace DOCTYPE
data = xml.to_xml().gsub!(/DOCTYPE article/, 'DOCTYPE book')