[ruby/rdoc] Non-RD part feature has not been imported to RDoc

https://github.com/ruby/rdoc/commit/fe0159de2f

lib/rdoc/rd/block_parser.rb

@@ -127,15 +127,19 @@ def next_token # :nodoc:
     # non-RD part begin
     when /^=begin\s+(\w+)/
       part = $1
+=begin # not imported to RDoc
       if @in_part # if in non-RD part
         @part_content.push(line)
       else
         @in_part = part if @tree.filter[part] # if filter exists
 #  p "BEGIN_PART: #{@in_part}" # DEBUG
       end
+=end
+      @in_part = part
     # non-RD part end
     when /^=end/
       if @in_part # if in non-RD part
+=begin # not imported to RDoc
 #  p "END_PART: #{@in_part}" # DEBUG
         # make Part-in object
         part = RDoc::RD::Part.new(@part_content.join(""), @tree, "r")
@@ -154,11 +158,14 @@ def next_token # :nodoc:
         end
         @in_part = nil
         return [:SUBTREE, subtree]
+=end
       end
     else
+=begin # not imported to RDoc
       if @in_part # if in non-RD part
         @part_content.push(line)
       end
+=end
     end
   end
 

test/rdoc/test_rdoc_rd_block_parser.rb

@@ -168,6 +168,27 @@ class TestRDocRdBlockParser < RDoc::TestCase
     tf.close!
   end
 
+=begin
+  def test_parse_include_other_format
+    @block_parser.include_path = [Dir.tmpdir]
+
+    expected =
+      doc(
+        blank_line,
+        para("include ((*worked*))"),
+        blank_line,
+        blank_line)
+
+    str = <<~STR
+    =begin nonrd
+    <<< worked
+    =end
+    STR
+
+    assert_equal(expected, @block_parser.parse str.lines.to_a)
+  end
+=end
+
   def test_parse_heading
     assert_equal doc(head(1, "H")), parse("= H")
     assert_equal doc(head(2, "H")), parse("== H")