diff --git a/.travis.yml b/.travis.yml
index a5e5f6c90..928217843 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -2,6 +2,10 @@ language: ruby
 sudo: false
 dist: trusty
 
+os:
+  - linux
+  - osx
+
 addons:
   apt:
     packages:
@@ -12,23 +16,20 @@ addons:
 
 before_install:
   - |-
-    RUBY_VER=`ruby -e "print RUBY_VERSION"`
-    if [ "$RUBY_VER" = "2.1.10" ]; then
-      gem install bundler -v '< 2'
-    elif [ "$RUBY_VER" = "2.2.10" ]; then
-      gem install bundler -v '< 2'
-    else
-      gem update --system
-      gem install bundler
-    fi
+    gem update --system
+    gem install bundler
+    gem install epubcheck-ruby
+
+script:
+  - bundle exec rake
+  - ruby bin/review-init hello && cd hello && ruby ../bin/review-epubmaker config.yml && epubcheck book.epub
+  - cd ..
+  - ruby bin/review-init hello2 --epub-version 2 && cd hello2 && ruby ../bin/review-epubmaker config.yml && epubcheck book.epub
 
 rvm:
-  - 2.1
-  - 2.2.10
-  - 2.3.8
-  - 2.4.5
-  - 2.5.3
-  - 2.6.0
+  - 2.4.6
+  - 2.5.5
+  - 2.6.3
 ##  - ruby-head
 
 branches:
diff --git a/appveyor.yml b/appveyor.yml
index 775f98717..9b5ee87bf 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -8,11 +8,29 @@ build_script:
   - bundle exec rake test --trace --verbose
   - bundle exec rubocop
 
+before_test:
+  - gem install -N epubcheck-ruby
+
+test_script:
+  - ruby bin/review-init hello
+  - cd hello
+  - ruby ../bin/review-epubmaker config.yml
+  - epubcheck book.epub
+  - cd ..
+  - ruby bin/review-init hello2 --epub-version 2
+  - cd hello2
+  - ruby ../bin/review-epubmaker config.yml
+  - epubcheck book.epub
+
 branches:
   only:
     - master
 
 environment:
   matrix:
-    - ruby_version: "23"
-    - ruby_version: "23-x64"
\ No newline at end of file
+    - ruby_version: "24"
+    - ruby_version: "24-x64"
+    - ruby_version: "25"
+    - ruby_version: "25-x64"
+    - ruby_version: "26"
+    - ruby_version: "26-x64"
diff --git a/lib/epubmaker/epubv2.rb b/lib/epubmaker/epubv2.rb
index 00eb04454..d7a998ac5 100644
--- a/lib/epubmaker/epubv2.rb
+++ b/lib/epubmaker/epubv2.rb
@@ -39,7 +39,7 @@ def opf_metainfo
         if @producer.config[item].is_a?(Array)
           s << @producer.config.names_of(item).map { |i| %Q(    <dc:#{item}>#{CGI.escapeHTML(i)}</dc:#{item}>\n) }.join
         else
-          s << %Q(    <dc:#{item}>#{CGI.escapeHTML(@producer.config.name_of(item))}</dc:#{item}>\n)
+          s << %Q(    <dc:#{item}>#{CGI.escapeHTML(@producer.config.name_of(item).to_s)}</dc:#{item}>\n)
         end
       end
 
diff --git a/lib/epubmaker/producer.rb b/lib/epubmaker/producer.rb
index d67455e90..6fa8d622d 100644
--- a/lib/epubmaker/producer.rb
+++ b/lib/epubmaker/producer.rb
@@ -192,7 +192,8 @@ def produce(epubfile, basedir = nil, tmpdir = nil)
       current = Dir.pwd
       basedir ||= current
 
-      new_tmpdir = tmpdir.nil? ? Dir.mktmpdir : tmpdir
+      # use Dir to solve a path for Windows (see #1011)
+      new_tmpdir = Dir[File.join(tmpdir.nil? ? Dir.mktmpdir : tmpdir)][0]
       if epubfile !~ %r{\A/}
         epubfile = "#{current}/#{epubfile}"
       end
diff --git a/lib/review/latexbuilder.rb b/lib/review/latexbuilder.rb
index 570abe4f0..8d4892a92 100644
--- a/lib/review/latexbuilder.rb
+++ b/lib/review/latexbuilder.rb
@@ -997,7 +997,7 @@ def inline_fn(id)
     BOUTEN = '・'.freeze
 
     def inline_bou(str)
-      str.split(//).map { |c| macro('ruby', escape(c), macro('textgt', BOUTEN)) }.join('\allowbreak')
+      macro('reviewbou', escape(str))
     end
 
     def compile_ruby(base, ruby)
diff --git a/lib/review/preprocessor.rb b/lib/review/preprocessor.rb
index 5b7ac8cc2..b21b37f85 100644
--- a/lib/review/preprocessor.rb
+++ b/lib/review/preprocessor.rb
@@ -43,28 +43,6 @@ def lineno
   class Preprocessor
     include ErrorUtils
 
-    class Strip
-      def initialize(f)
-        @f = f
-      end
-
-      def path
-        @f.path
-      end
-
-      def lineno
-        @f.lineno
-      end
-
-      def gets
-        @f.each_line do |line|
-          return "\#@\#\n" if /\A\#@/ =~ line
-          return line
-        end
-        nil
-      end
-    end
-
     def initialize(repo, param)
       @repository = repo
       @config = param
diff --git a/lib/review/yamlloader.rb b/lib/review/yamlloader.rb
index 932088bc9..2bd83d931 100644
--- a/lib/review/yamlloader.rb
+++ b/lib/review/yamlloader.rb
@@ -15,31 +15,38 @@ def load_file(yamlfile)
       loaded_files = {}
       yaml = {}
 
-      loop do
-        # Check exit condition
-        return yaml if file_queue.empty?
-
+      while file_queue.present?
         current_file = file_queue.shift
         current_yaml = YAML.load_file(current_file)
         yaml = current_yaml.deep_merge(yaml)
 
-        next unless yaml.key?('inherit')
+        if yaml.key?('inherit')
+          inherit_files = parse_inherit(yaml, yamlfile, loaded_files)
+          file_queue = inherit_files + file_queue
+        end
+      end
+
+      yaml
+    end
 
-        buf = []
-        yaml['inherit'].reverse_each do |item|
-          inherit_file = File.expand_path(item, File.dirname(yamlfile))
+    def parse_inherit(yaml, yamlfile, loaded_files)
+      files = []
 
-          # Check loop
-          if loaded_files[inherit_file]
-            raise "Found circular YAML inheritance '#{inherit_file}' in #{yamlfile}."
-          end
+      yaml['inherit'].reverse_each do |item|
+        inherit_file = File.expand_path(item, File.dirname(yamlfile))
 
-          loaded_files[inherit_file] = true
-          buf << inherit_file
+        # Check loop
+        if loaded_files[inherit_file]
+          raise "Found circular YAML inheritance '#{inherit_file}' in #{yamlfile}."
         end
-        yaml.delete('inherit')
-        file_queue = buf + file_queue
+
+        loaded_files[inherit_file] = true
+        files << inherit_file
       end
+
+      yaml.delete('inherit')
+
+      files
     end
   end
 end
diff --git a/templates/latex/review-jlreq/review-base.sty b/templates/latex/review-jlreq/review-base.sty
index 16b2ea694..2010a47db 100644
--- a/templates/latex/review-jlreq/review-base.sty
+++ b/templates/latex/review-jlreq/review-base.sty
@@ -165,6 +165,7 @@
 \DeclareRobustCommand{\reviewtt}[1]{\texttt{#1}}
 \DeclareRobustCommand{\reviewtti}[1]{\texttt{\textit{#1}}}
 \DeclareRobustCommand{\reviewttb}[1]{\texttt{\textbf{#1}}}
+\DeclareRobustCommand{\reviewbou}[1]{\kenten{#1}}
 
 %% @<del> is ignored in LaTeX with default style
 %% \DeclareRobustCommand{\reviewstrike}[1]{#1}
diff --git a/templates/latex/review-jsbook/review-base.sty b/templates/latex/review-jsbook/review-base.sty
index 2f4381e25..a4a26a380 100644
--- a/templates/latex/review-jsbook/review-base.sty
+++ b/templates/latex/review-jsbook/review-base.sty
@@ -265,6 +265,7 @@
 \DeclareRobustCommand{\reviewtt}[1]{\texttt{#1}}
 \DeclareRobustCommand{\reviewtti}[1]{\texttt{\textit{#1}}}
 \DeclareRobustCommand{\reviewttb}[1]{\texttt{\textbf{#1}}}
+\DeclareRobustCommand{\reviewbou}[1]{\kenten{#1}}
 
 %% @<del> is ignored in LaTeX with default style
 \DeclareRobustCommand{\reviewstrike}[1]{#1}
diff --git a/test/test_latexbuilder.rb b/test/test_latexbuilder.rb
index 598756ef8..3a6293827 100644
--- a/test/test_latexbuilder.rb
+++ b/test/test_latexbuilder.rb
@@ -169,6 +169,11 @@ def test_inline_u
     assert_equal 'abc\\reviewunderline{def}ghi', actual
   end
 
+  def test_inline_bou
+    actual = compile_inline('傍点の@<bou>{テスト}です。')
+    assert_equal '傍点の\\reviewbou{テスト}です。', actual
+  end
+
   def test_inline_m
     @config['review_version'] = '3.0'
     actual = compile_inline('abc@<m>{\\alpha^n = \\inf < 2}ghi')
diff --git a/test/test_preprocessor.rb b/test/test_preprocessor.rb
index d5a710a5d..a2c7e90a9 100644
--- a/test/test_preprocessor.rb
+++ b/test/test_preprocessor.rb
@@ -2,22 +2,8 @@
 require 'review/preprocessor'
 require 'stringio'
 
-class PreprocessorStripTest < Test::Unit::TestCase
+class PreprocessorTest < Test::Unit::TestCase
   include ReVIEW
 
-  def test_gets
-    f = StringIO.new '= Header'
-    s = Preprocessor::Strip.new(f)
-    expect = '= Header'
-    actual = s.gets
-    assert_equal expect, actual
-  end
-
-  def test_gets_with_comment
-    f = StringIO.new '#@warn(write it later)'
-    s = Preprocessor::Strip.new(f)
-    expect = '#@#' + "\n"
-    actual = s.gets
-    assert_equal expect, actual
-  end
+  ## TODO: add tests
 end