ripper_state_lex.rb: chomp CR

* lib/rdoc/parser/ripper_state_lex.rb (RDoc::Parser::RipperStateLex):
  chomp newline, including CR, from here document terminator.

Closes: #694
Closes: #697
Closes: #705

lib/rdoc/parser/ripper_state_lex.rb

@@ -494,7 +494,8 @@ def get_squashed_tk
   private def heredoc_end?(name, indent, tk)
     result = false
     if :on_heredoc_end == tk[:kind] then
-      tk_name = (indent ? tk[:text].gsub(/^ *(.+)\n?$/, '\1') : tk[:text].gsub(/\n\z/, ''))
+      tk_name = tk[:text].chomp
+      tk_name.lstrip! if indent
       if name == tk_name
         result = true
       end

test/test_rdoc_parser_ruby.rb

@@ -2914,6 +2914,21 @@ def blah()
     assert_equal expected, markup_code
   end
 
+  def test_parse_heredoc_end
+    code = "A = <<eos\n""OK\n""eos\n"
+    util_parser code
+    @parser.parse_statements @top_level
+    @parser.scan
+    c = @top_level.classes.first.constants.first
+    assert_equal("A", c.name)
+
+    util_parser code.gsub(/$/, "\r")
+    @parser.parse_statements @top_level
+    @parser.scan
+    c = @top_level.classes.first.constants.first
+    assert_equal("A", c.name)
+  end
+
   def test_parse_statements_method_oneliner_with_regexp
     util_parser <<RUBY
 class Foo