rfcsvg.rb

#!/usr/bin/env ruby
require 'rexml/document'
require 'open3'

default_fn = "svg-fig-00"

d = REXML::Document.new(ARGF)

REXML::XPath.each(d.root, "//svg:svg", {"svg" => "http://www.w3.org/2000/svg"}) do |x|
  fn = default_fn.succ!
  # insert code to override fn with @name of ancestor
  o, s = Open3.capture2("rsvg-convert -f pdf", stdin_data: x.to_s)
  File.write("#{fn}.pdf", o)
  puts "#{fn}.pdf -- #{s.inspect}"
end