resolves #2298 add numbering for parts

- number parts using roman numerals if the partnums attribute is set
- move method to convert integer to roman to Helpers module
- assign the value "Part" to the part-refsig attribute by default
- define the part-label attribute in the attributes-en.adoc data file
- add support for partnums and sectnums=all to create_section helper in extensions
- add partnums and sectnums=all scenarios to test for create_section helper

1 files changed, 25 insertions, 0 deletions

diff --git a/test/sections_test.rb b/test/sections_test.rb
index 7ca13906..dfdea842 100644
--- a/test/sections_test.rb
+++ b/test/sections_test.rb
@@ -1354,6 +1354,31 @@ text
       assert_xpath '//h3[@id="_section_2_2"][starts-with(text(), "2.2. ")]', output, 1
     end
 
+    test 'should number parts when doctype is book and partnums attributes is set' do
+      input = <<-EOS
+= Book Title
+:doctype: book
+:sectnums:
+:partnums:
+
+= Language
+
+== Syntax
+
+content
+
+= Processor
+
+== CLI
+
+content
+      EOS
+
+      output = render_string input
+      assert_xpath '//h1[@id="_language"][text() = "I. Language"]', output, 1
+      assert_xpath '//h1[@id="_processor"][text() = "II. Processor"]', output, 1
+    end
+
     test 'blocks should have level' do
       input = <<-EOS
 = Title