1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
|
require 'rexml/document'
SVG_NAMESPACES = {"svg"=>"http://www.w3.org/2000/svg",
"xlink"=>"http://www.w3.org/1999/xlink"}
def svg_id_cleanup(d)
gensym = "gensym000"
REXML::XPath.each(d.root, "//svg:svg", SVG_NAMESPACES) do |x|
gensym = gensym.succ
# warn "*** SVG"
# warn "*** SVG: #{x.to_s.size}"
found_as_id = Set[]
found_as_href = Set[]
REXML::XPath.each(x, ".//*[@id]", SVG_NAMESPACES) do |y|
# warn "*** ID: #{y}"
name = y.attributes["id"]
if found_as_id === name
warn "*** duplicate ID #{name}"
end
found_as_id.add(name)
y.attributes["id"] = "#{name}-#{gensym}"
end
REXML::XPath.each(x, ".//*[@xlink:href]", SVG_NAMESPACES) do |y|
# warn "*** HREF: #{y}"
name = y.attributes["href"]
name1 = name[1..-1]
if !found_as_id === name1
warn "*** unknown HREF #{name}"
end
found_as_href.add(name1)
y.attributes["xlink:href"] = "#{name}-#{gensym}"
end
found_as_id -= found_as_href
warn "*** warning: unused ID: #{found_as_id.to_a.join(", ")}" unless found_as_id.empty?
end
rescue => detail
warn "*** Can't clean SVG: #{detail}"
end
|
