Ruby script to break svg font into individual glyphs.

svg-font-to-pics.rb

require 'nokogiri'

input_file_name = ARGV[0] || "./font.svg"

input_file = File.open input_file_name
doc = Nokogiri::XML input_file
input_file.close

font_face = doc.css("font-face")[0]
units_per_em = font_face["units-per-em"]
ascent = font_face["ascent"]

doc.css("glyph").each do |glyph|
    output_doc = Nokogiri::XML::Document.new

    root = Nokogiri::XML::Node.new "svg", output_doc
    root.add_namespace_definition nil, "http://www.w3.org/2000/svg"
    root.add_namespace_definition "xlink", "http://www.w3.org/1999/xlink"
    root["width"] = root["height"] = units_per_em

    path = Nokogiri::XML::Node.new "path", output_doc
    path["d"] = glyph["d"]
    path["transform"] = "scale(1, -1) translate(0,-#{ascent})"

    output_doc << (root << path)
    output_file_name = glyph["unicode"][0].ord.to_i.to_s(16) + ".svg"
    puts output_file_name
    output_file = File.new(output_file_name, "w")
    output_file.write(output_doc.to_xml)
    output_file.close
end