From 4508082ee39309749a0e8835a9f87a2246f09a07 Mon Sep 17 00:00:00 2001
From: takahashim <takahashimm@gmail.com>
Date: Wed, 1 Jan 2025 01:12:14 +0900
Subject: [PATCH] add magic comments

---
 Rakefile                              | 2 ++
 bin/review                            | 2 ++
 bin/review-catalog-converter          | 2 ++
 bin/review-check                      | 2 ++
 bin/review-checkdep                   | 4 +++-
 bin/review-compile                    | 4 +++-
 bin/review-epub2html                  | 2 ++
 bin/review-epubmaker                  | 2 ++
 bin/review-idgxmlmaker                | 2 ++
 bin/review-index                      | 2 ++
 bin/review-init                       | 2 ++
 bin/review-pdfmaker                   | 2 ++
 bin/review-preproc                    | 2 ++
 bin/review-textmaker                  | 2 ++
 bin/review-update                     | 2 ++
 bin/review-validate                   | 2 ++
 bin/review-vol                        | 2 ++
 bin/review-webmaker                   | 2 ++
 lib/review.rb                         | 2 ++
 lib/review/book.rb                    | 2 ++
 lib/review/book/bib.rb                | 2 ++
 lib/review/book/book_unit.rb          | 2 ++
 lib/review/book/cache.rb              | 2 ++
 lib/review/book/chapter.rb            | 2 ++
 lib/review/book/image_finder.rb       | 2 ++
 lib/review/book/index.rb              | 2 ++
 lib/review/book/index/item.rb         | 2 ++
 lib/review/book/page_metric.rb        | 2 ++
 lib/review/book/part.rb               | 2 ++
 lib/review/book/volume.rb             | 2 ++
 lib/review/builder.rb                 | 2 ++
 lib/review/call_hook.rb               | 2 ++
 lib/review/catalog.rb                 | 2 ++
 lib/review/compiler.rb                | 2 ++
 lib/review/configure.rb               | 2 ++
 lib/review/converter.rb               | 2 ++
 lib/review/epub2html.rb               | 2 ++
 lib/review/epubbuilder.rb             | 2 ++
 lib/review/epubmaker.rb               | 2 ++
 lib/review/epubmaker/content.rb       | 2 ++
 lib/review/epubmaker/epubcommon.rb    | 2 ++
 lib/review/epubmaker/epubv2.rb        | 2 ++
 lib/review/epubmaker/producer.rb      | 2 ++
 lib/review/epubmaker/zip_exporter.rb  | 2 ++
 lib/review/exception.rb               | 2 ++
 lib/review/extentions.rb              | 2 ++
 lib/review/extentions/hash.rb         | 2 ++
 lib/review/extentions/object.rb       | 2 ++
 lib/review/extentions/string.rb       | 2 ++
 lib/review/htmlbuilder.rb             | 2 ++
 lib/review/htmltoc.rb                 | 2 ++
 lib/review/htmlutils.rb               | 2 ++
 lib/review/i18n.rb                    | 2 ++
 lib/review/idgxmlbuilder.rb           | 2 ++
 lib/review/idgxmlmaker.rb             | 2 ++
 lib/review/img_graph.rb               | 2 ++
 lib/review/index_builder.rb           | 2 ++
 lib/review/init.rb                    | 2 ++
 lib/review/latexbuilder.rb            | 4 +++-
 lib/review/latexindex.rb              | 2 ++
 lib/review/latexutils.rb              | 2 ++
 lib/review/lineinput.rb               | 2 ++
 lib/review/location.rb                | 2 ++
 lib/review/loggable.rb                | 2 ++
 lib/review/logger.rb                  | 2 ++
 lib/review/makerhelper.rb             | 2 ++
 lib/review/markdownbuilder.rb         | 2 ++
 lib/review/md2inaobuilder.rb          | 2 ++
 lib/review/pdfmaker.rb                | 2 ++
 lib/review/plaintextbuilder.rb        | 2 ++
 lib/review/preprocessor.rb            | 2 ++
 lib/review/preprocessor/directive.rb  | 2 ++
 lib/review/preprocessor/line.rb       | 2 ++
 lib/review/preprocessor/repository.rb | 2 ++
 lib/review/rstbuilder.rb              | 2 ++
 lib/review/sec_counter.rb             | 2 ++
 lib/review/template.rb                | 2 ++
 lib/review/textbuilder.rb             | 2 ++
 lib/review/textmaker.rb               | 2 ++
 lib/review/textutils.rb               | 2 ++
 lib/review/tocprinter.rb              | 2 ++
 lib/review/topbuilder.rb              | 2 ++
 lib/review/update.rb                  | 2 ++
 lib/review/version.rb                 | 4 +++-
 lib/review/volumeprinter.rb           | 2 ++
 lib/review/webmaker.rb                | 2 ++
 lib/review/webtocprinter.rb           | 2 ++
 lib/review/yamlloader.rb              | 2 ++
 88 files changed, 180 insertions(+), 4 deletions(-)

diff --git a/Rakefile b/Rakefile
index b499b060e..f6800a065 100644
--- a/Rakefile
+++ b/Rakefile
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 begin
   require 'bundler'
   Bundler::GemHelper.install_tasks
diff --git a/bin/review b/bin/review
index c96275b29..36e00e7b0 100755
--- a/bin/review
+++ b/bin/review
@@ -1,4 +1,6 @@
 #!/usr/bin/env ruby
+# frozen_string_literal: true
+
 #
 # review: Wrapper command to call subcommand
 #
diff --git a/bin/review-catalog-converter b/bin/review-catalog-converter
index bdf28b0cf..52bdfd42e 100755
--- a/bin/review-catalog-converter
+++ b/bin/review-catalog-converter
@@ -1,4 +1,6 @@
 #!/usr/bin/env ruby
+# frozen_string_literal: true
+
 #
 # Copyright (c) 2014-2019 Masanori Kado, Kenshi Muto
 #
diff --git a/bin/review-check b/bin/review-check
index 6baba3344..973bd94aa 100755
--- a/bin/review-check
+++ b/bin/review-check
@@ -1,4 +1,6 @@
 #!/usr/bin/env ruby
+# frozen_string_literal: true
+
 #
 # Copyright (c) 2010-2019 Kenshi Muto, Minero Aoki
 #               1999-2007 Minero Aoki
diff --git a/bin/review-checkdep b/bin/review-checkdep
index 34ef17cd2..925f35653 100755
--- a/bin/review-checkdep
+++ b/bin/review-checkdep
@@ -1,4 +1,6 @@
 #!/usr/bin/env ruby
+# frozen_string_literal: true
+
 #
 # Copyright (c) 2007-2017 Minero Aoki, Kenshi Muto
 #               1999-2007 Minero Aoki
@@ -11,7 +13,7 @@
 
 $LOAD_PATH.unshift(File.realpath('../lib', __dir__))
 
-PREDEF_FILE = 'PREDEF'.freeze
+PREDEF_FILE = 'PREDEF'
 
 def main
   @provided = parse_predefined
diff --git a/bin/review-compile b/bin/review-compile
index 16f79f35d..404d4c93d 100755
--- a/bin/review-compile
+++ b/bin/review-compile
@@ -1,4 +1,6 @@
 #!/usr/bin/env ruby
+# frozen_string_literal: true
+
 #
 # Copyright (c) 2008-2019 Kenshi Muto, Masayoshi Takahashi, KADO Masanori, Minero Aoki
 # Copyright (c) 1999-2007 Minero Aoki
@@ -18,7 +20,7 @@ require 'yaml'
 
 include ReVIEW::Loggable
 
-DEFAULT_CONFIG_FILENAME = 'config.yml'.freeze
+DEFAULT_CONFIG_FILENAME = 'config.yml'
 
 def main
   Signal.trap(:INT) { exit 1 }
diff --git a/bin/review-epub2html b/bin/review-epub2html
index fa64acf97..3b6014fa6 100755
--- a/bin/review-epub2html
+++ b/bin/review-epub2html
@@ -1,4 +1,6 @@
 #!/usr/bin/env ruby
+# frozen_string_literal: true
+
 #
 # Copyright (c) 2018 Kenshi Muto
 #
diff --git a/bin/review-epubmaker b/bin/review-epubmaker
index 7db68b9ba..f7356caf7 100755
--- a/bin/review-epubmaker
+++ b/bin/review-epubmaker
@@ -1,4 +1,6 @@
 #!/usr/bin/env ruby
+# frozen_string_literal: true
+
 # Copyright (c) 2010-2019 Kenshi Muto and Masayoshi Takahashi
 #
 # This program is free software.
diff --git a/bin/review-idgxmlmaker b/bin/review-idgxmlmaker
index 03b2220e6..4cbb1a04f 100755
--- a/bin/review-idgxmlmaker
+++ b/bin/review-idgxmlmaker
@@ -1,4 +1,6 @@
 #!/usr/bin/env ruby
+# frozen_string_literal: true
+
 # Copyright (c) 2019 Kenshi Muto
 #
 # This program is free software.
diff --git a/bin/review-index b/bin/review-index
index 07c0d46b0..d597ca1e0 100755
--- a/bin/review-index
+++ b/bin/review-index
@@ -1,4 +1,6 @@
 #!/usr/bin/env ruby
+# frozen_string_literal: true
+
 #
 # Copyright (c) 2008-2020 Minero Aoki, Kenshi Muto
 #               1999-2007 Minero Aoki
diff --git a/bin/review-init b/bin/review-init
index 28940ca6f..68f73bd65 100755
--- a/bin/review-init
+++ b/bin/review-init
@@ -1,4 +1,6 @@
 #!/usr/bin/env ruby
+# frozen_string_literal: true
+
 #
 # Copyright (c) 2013-2017 Masanori Kado, Masayoshi Takahashi, Kenshi Muto
 #
diff --git a/bin/review-pdfmaker b/bin/review-pdfmaker
index 7f313b1de..f0b68feba 100755
--- a/bin/review-pdfmaker
+++ b/bin/review-pdfmaker
@@ -1,4 +1,6 @@
 #!/usr/bin/env ruby
+# frozen_string_literal: true
+
 # Copyright (c) 2010-2017 Kenshi Muto and Masayoshi Takahashi
 #
 # This program is free software.
diff --git a/bin/review-preproc b/bin/review-preproc
index 54d0a1c11..a69acd92f 100755
--- a/bin/review-preproc
+++ b/bin/review-preproc
@@ -1,4 +1,6 @@
 #!/usr/bin/env ruby
+# frozen_string_literal: true
+
 #
 # Copyright (c) 2010-2019 Minero Aoki, Kenshi Muto
 #               1999-2007 Minero Aoki
diff --git a/bin/review-textmaker b/bin/review-textmaker
index 607ba5581..6a553e868 100755
--- a/bin/review-textmaker
+++ b/bin/review-textmaker
@@ -1,4 +1,6 @@
 #!/usr/bin/env ruby
+# frozen_string_literal: true
+
 # Copyright (c) 2018 Kenshi Muto
 #
 # This program is free software.
diff --git a/bin/review-update b/bin/review-update
index 57ddef1fc..fcb890371 100755
--- a/bin/review-update
+++ b/bin/review-update
@@ -1,4 +1,6 @@
 #!/usr/bin/env ruby
+# frozen_string_literal: true
+
 #
 # Copyright (c) 2018 Kenshi Muto
 #
diff --git a/bin/review-validate b/bin/review-validate
index 70d53eb11..639e18043 100755
--- a/bin/review-validate
+++ b/bin/review-validate
@@ -1,4 +1,6 @@
 #!/usr/bin/env ruby
+# frozen_string_literal: true
+
 # Copyright (c) 2010-2019 Kenshi Muto
 #
 # This program is free software
diff --git a/bin/review-vol b/bin/review-vol
index fccf93f97..d07c14ffd 100755
--- a/bin/review-vol
+++ b/bin/review-vol
@@ -1,4 +1,6 @@
 #!/usr/bin/env ruby
+# frozen_string_literal: true
+
 #
 # Copyright (c) 2014-2020 Minero Aoki, Kenshi Muto
 #               2003-2014 Minero Aoki
diff --git a/bin/review-webmaker b/bin/review-webmaker
index b3e891766..a4008bfb5 100755
--- a/bin/review-webmaker
+++ b/bin/review-webmaker
@@ -1,4 +1,6 @@
 #!/usr/bin/env ruby
+# frozen_string_literal: true
+
 #
 # This program is free software.
 # You can distribute or modify this program under the terms of
diff --git a/lib/review.rb b/lib/review.rb
index 4729bc9b6..dcf368edd 100644
--- a/lib/review.rb
+++ b/lib/review.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 Dir["#{__dir__}/review/*.rb"].sort.each do |path|
   require "review/#{File.basename(path, '.rb')}"
 end
diff --git a/lib/review/book.rb b/lib/review/book.rb
index 3e3df80d8..72f85e437 100644
--- a/lib/review/book.rb
+++ b/lib/review/book.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 # Copyright (c) 2009-2017 Minero Aoki, Kenshi Muto
 #               2002-2008 Minero Aoki
 #
diff --git a/lib/review/book/bib.rb b/lib/review/book/bib.rb
index fb1f66307..2ef24c3c3 100644
--- a/lib/review/book/bib.rb
+++ b/lib/review/book/bib.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 #
 # Copyright (c) 2009-2020 Minero Aoki, Kenshi Muto
 #
diff --git a/lib/review/book/book_unit.rb b/lib/review/book/book_unit.rb
index ab0b70dc2..9b0a50635 100644
--- a/lib/review/book/book_unit.rb
+++ b/lib/review/book/book_unit.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 # Copyright (c) 2009-2021 Minero Aoki, Kenshi Muto
 #               2002-2008 Minero Aoki
 #
diff --git a/lib/review/book/cache.rb b/lib/review/book/cache.rb
index 27f5f8d78..30eb20ed5 100644
--- a/lib/review/book/cache.rb
+++ b/lib/review/book/cache.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 #
 # Copyright (c) 2014-2024 Minero Aoki, Kenshi Muto, Masayoshi Takahashi
 #
diff --git a/lib/review/book/chapter.rb b/lib/review/book/chapter.rb
index c9fc475fd..f6777cc0f 100644
--- a/lib/review/book/chapter.rb
+++ b/lib/review/book/chapter.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 #
 # Copyright (c) 2009-2019 Minero Aoki, Kenshi Muto
 #               2002-2008 Minero Aoki
diff --git a/lib/review/book/image_finder.rb b/lib/review/book/image_finder.rb
index cd6d89820..86befc9db 100644
--- a/lib/review/book/image_finder.rb
+++ b/lib/review/book/image_finder.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 #
 # Copyright (c) 2014-2023 Minero Aoki, Kenshi Muto, Masayoshi Takahashi
 #
diff --git a/lib/review/book/index.rb b/lib/review/book/index.rb
index e6e3c4bab..bf2cae90c 100644
--- a/lib/review/book/index.rb
+++ b/lib/review/book/index.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 # Copyright (c) 2008-2021 Minero Aoki, Kenshi Muto
 #               2002-2007 Minero Aoki
 #
diff --git a/lib/review/book/index/item.rb b/lib/review/book/index/item.rb
index 87e182613..595a364af 100644
--- a/lib/review/book/index/item.rb
+++ b/lib/review/book/index/item.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 # Copyright (c) 2008-2019 Minero Aoki, Kenshi Muto
 #
 # This program is free software.
diff --git a/lib/review/book/page_metric.rb b/lib/review/book/page_metric.rb
index 203563717..af4826a03 100644
--- a/lib/review/book/page_metric.rb
+++ b/lib/review/book/page_metric.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 # Copyright (c) 2009-2020 Minero Aoki, Kenshi Muto
 #               2002-2008 Minero Aoki
 #
diff --git a/lib/review/book/part.rb b/lib/review/book/part.rb
index 5e3e2499c..ec1164b03 100644
--- a/lib/review/book/part.rb
+++ b/lib/review/book/part.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 # Copyright (c) 2009-2020 Minero Aoki, Kenshi Muto, Masayoshi Takahashi
 #               2002-2008 Minero Aoki
 #
diff --git a/lib/review/book/volume.rb b/lib/review/book/volume.rb
index 980cb2931..adc91dd21 100644
--- a/lib/review/book/volume.rb
+++ b/lib/review/book/volume.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 # Copyright (c) 2007-2020 Minero Aoki, Kenshi Muto
 #               2002-2007 Minero Aoki
 #
diff --git a/lib/review/builder.rb b/lib/review/builder.rb
index f78a0b63e..385fd3f2e 100644
--- a/lib/review/builder.rb
+++ b/lib/review/builder.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 # Copyright (c) 2002-2024 Minero Aoki, Kenshi Muto
 #
 # This program is free software.
diff --git a/lib/review/call_hook.rb b/lib/review/call_hook.rb
index 83a48ff51..2a81a34fb 100644
--- a/lib/review/call_hook.rb
+++ b/lib/review/call_hook.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 module ReVIEW
   module CallHook
     def call_hook(hook_name, *params, base_dir: nil)
diff --git a/lib/review/catalog.rb b/lib/review/catalog.rb
index 87cbd51c0..53f0ba49f 100644
--- a/lib/review/catalog.rb
+++ b/lib/review/catalog.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'yaml'
 require 'date'
 
diff --git a/lib/review/compiler.rb b/lib/review/compiler.rb
index 4bdb8e438..543a2f5fa 100644
--- a/lib/review/compiler.rb
+++ b/lib/review/compiler.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 # Copyright (c) 2009-2024 Minero Aoki, Kenshi Muto
 # Copyright (c) 2002-2007 Minero Aoki
 #
diff --git a/lib/review/configure.rb b/lib/review/configure.rb
index c80952f7c..a327658b7 100644
--- a/lib/review/configure.rb
+++ b/lib/review/configure.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 #
 # Copyright (c) 2012-2022 Masanori Kado, Masayoshi Takahashi, Kenshi Muto
 #
diff --git a/lib/review/converter.rb b/lib/review/converter.rb
index 38c0bb0fa..65a7a48e5 100644
--- a/lib/review/converter.rb
+++ b/lib/review/converter.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 # This program is free software.
 # You can distribute or modify this program under the terms of
 # the GNU LGPL, Lesser General Public License version 2.1.
diff --git a/lib/review/epub2html.rb b/lib/review/epub2html.rb
index 74e0896c9..c5ef5f96d 100644
--- a/lib/review/epub2html.rb
+++ b/lib/review/epub2html.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 #
 # Copyright (c) 2018-2019 Kenshi Muto
 #
diff --git a/lib/review/epubbuilder.rb b/lib/review/epubbuilder.rb
index 5021b0727..06bf2780f 100644
--- a/lib/review/epubbuilder.rb
+++ b/lib/review/epubbuilder.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 # epubbuilder.rb
 #   just for compatibility
 #
diff --git a/lib/review/epubmaker.rb b/lib/review/epubmaker.rb
index 84491957d..dff22c37e 100644
--- a/lib/review/epubmaker.rb
+++ b/lib/review/epubmaker.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 # Copyright (c) 2010-2024 Kenshi Muto and Masayoshi Takahashi
 #
 # This program is free software.
diff --git a/lib/review/epubmaker/content.rb b/lib/review/epubmaker/content.rb
index af1c1269d..497822c3a 100644
--- a/lib/review/epubmaker/content.rb
+++ b/lib/review/epubmaker/content.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 # = content.rb -- Content object for EPUBMaker.
 #
 # Copyright (c) 2010-2020 Kenshi Muto
diff --git a/lib/review/epubmaker/epubcommon.rb b/lib/review/epubmaker/epubcommon.rb
index b2e6cdf6d..491091f4c 100644
--- a/lib/review/epubmaker/epubcommon.rb
+++ b/lib/review/epubmaker/epubcommon.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 # = epubcommon.rb -- super class for EPUBv2 and EPUBv3
 #
 # Copyright (c) 2010-2024 Kenshi Muto and Masayoshi Takahashi
diff --git a/lib/review/epubmaker/epubv2.rb b/lib/review/epubmaker/epubv2.rb
index d262a19bf..ad520f87d 100644
--- a/lib/review/epubmaker/epubv2.rb
+++ b/lib/review/epubmaker/epubv2.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 # = epubv2.rb -- EPUB version 2 producer.
 #
 # Copyright (c) 2010-2022 Kenshi Muto and Masayoshi Takahashi
diff --git a/lib/review/epubmaker/producer.rb b/lib/review/epubmaker/producer.rb
index 7baf1ed04..2577b47ef 100644
--- a/lib/review/epubmaker/producer.rb
+++ b/lib/review/epubmaker/producer.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 # = producer.rb -- EPUB producer.
 #
 # Copyright (c) 2010-2023 Kenshi Muto
diff --git a/lib/review/epubmaker/zip_exporter.rb b/lib/review/epubmaker/zip_exporter.rb
index 88fab0641..d788de7d0 100644
--- a/lib/review/epubmaker/zip_exporter.rb
+++ b/lib/review/epubmaker/zip_exporter.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 # Copyright (c) 2010-2017 Kenshi Muto and Masayoshi Takahashi
 #
 # This program is free software.
diff --git a/lib/review/exception.rb b/lib/review/exception.rb
index e53f5fd95..999ecda88 100644
--- a/lib/review/exception.rb
+++ b/lib/review/exception.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 #
 # Copyright (c) 2007-2017 Minero Aoki, Kenshi Muto
 #               2002-2007 Minero Aoki
diff --git a/lib/review/extentions.rb b/lib/review/extentions.rb
index d553dd6c8..361b126c1 100644
--- a/lib/review/extentions.rb
+++ b/lib/review/extentions.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'review/extentions/object'
 require 'review/extentions/string'
 require 'review/extentions/hash'
diff --git a/lib/review/extentions/hash.rb b/lib/review/extentions/hash.rb
index 9c255002a..58bfbabb3 100644
--- a/lib/review/extentions/hash.rb
+++ b/lib/review/extentions/hash.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 class Hash
   def deep_merge!(other)
     self.merge!(other) do |_key, v_self, v_other|
diff --git a/lib/review/extentions/object.rb b/lib/review/extentions/object.rb
index 3d22805b8..4f2e2fcd3 100644
--- a/lib/review/extentions/object.rb
+++ b/lib/review/extentions/object.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 class Object
   def blank?
     respond_to?(:empty?) ? empty? : !self
diff --git a/lib/review/extentions/string.rb b/lib/review/extentions/string.rb
index 9e5f5e968..da26c46f5 100644
--- a/lib/review/extentions/string.rb
+++ b/lib/review/extentions/string.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 if defined?(Encoding) && Encoding.respond_to?(:default_external) &&
    Encoding.default_external != Encoding::UTF_8
   Encoding.default_external = 'UTF-8'
diff --git a/lib/review/htmlbuilder.rb b/lib/review/htmlbuilder.rb
index f00d5af03..2153776d4 100644
--- a/lib/review/htmlbuilder.rb
+++ b/lib/review/htmlbuilder.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 # Copyright (c) 2008-2023 Minero Aoki, Kenshi Muto, Masayoshi Takahashi,
 #                         KADO Masanori
 #               2002-2007 Minero Aoki
diff --git a/lib/review/htmltoc.rb b/lib/review/htmltoc.rb
index d1220d1ef..89b849157 100644
--- a/lib/review/htmltoc.rb
+++ b/lib/review/htmltoc.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 module ReVIEW
   class HTMLToc
     def initialize(basedir)
diff --git a/lib/review/htmlutils.rb b/lib/review/htmlutils.rb
index e2810aa8e..4a288d225 100644
--- a/lib/review/htmlutils.rb
+++ b/lib/review/htmlutils.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 #
 # Copyright (c) 2006-2018 Minero Aoki, Kenshi Muto
 #               2002-2006 Minero Aoki
diff --git a/lib/review/i18n.rb b/lib/review/i18n.rb
index c186eb050..360de4a74 100644
--- a/lib/review/i18n.rb
+++ b/lib/review/i18n.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'yaml'
 
 module ReVIEW
diff --git a/lib/review/idgxmlbuilder.rb b/lib/review/idgxmlbuilder.rb
index aaefb1f35..196e87db2 100644
--- a/lib/review/idgxmlbuilder.rb
+++ b/lib/review/idgxmlbuilder.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 # Copyright (c) 2008-2024 Minero Aoki, Kenshi Muto
 #               2002-2007 Minero Aoki
 #
diff --git a/lib/review/idgxmlmaker.rb b/lib/review/idgxmlmaker.rb
index dba86051d..e1597999f 100644
--- a/lib/review/idgxmlmaker.rb
+++ b/lib/review/idgxmlmaker.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 # Copyright (c) 2019-2023 Kenshi Muto
 #
 # This program is free software.
diff --git a/lib/review/img_graph.rb b/lib/review/img_graph.rb
index e1ab140c7..f1e6b109b 100644
--- a/lib/review/img_graph.rb
+++ b/lib/review/img_graph.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 #
 # Copyright (c) 2023 Kenshi Muto
 #
diff --git a/lib/review/index_builder.rb b/lib/review/index_builder.rb
index bd3bfc448..e9c2abd12 100644
--- a/lib/review/index_builder.rb
+++ b/lib/review/index_builder.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 # Copyright (c) 2008-2022 Minero Aoki, Kenshi Muto, Masayoshi Takahashi,
 #                         KADO Masanori
 #
diff --git a/lib/review/init.rb b/lib/review/init.rb
index d7a5d7717..f6f916dba 100644
--- a/lib/review/init.rb
+++ b/lib/review/init.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 #
 # Copyright (c) 2018-2022 Masanori Kado, Masayoshi Takahashi, Kenshi Muto
 #
diff --git a/lib/review/latexbuilder.rb b/lib/review/latexbuilder.rb
index 16d26efdc..ce55f9258 100644
--- a/lib/review/latexbuilder.rb
+++ b/lib/review/latexbuilder.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 # Copyright (c) 2002-2007 Minero Aoki
 #               2008-2009 Minero Aoki, Kenshi Muto
 #               2010-2022 Minero Aoki, Kenshi Muto, TAKAHASHI Masayoshi
@@ -1163,7 +1165,7 @@ def printendnotes
       blank
     end
 
-    BOUTEN = '・'.freeze
+    BOUTEN = '・'
 
     def inline_bou(str)
       macro('reviewbou', escape(str))
diff --git a/lib/review/latexindex.rb b/lib/review/latexindex.rb
index 8c2f269b7..477a6cd8f 100644
--- a/lib/review/latexindex.rb
+++ b/lib/review/latexindex.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 # Copyright (c) 2017 Minero Aoki, Kenshi Muto
 #               2002-2006 Minero Aoki
 #
diff --git a/lib/review/latexutils.rb b/lib/review/latexutils.rb
index 04bf44cbc..4f276cee0 100644
--- a/lib/review/latexutils.rb
+++ b/lib/review/latexutils.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 # Copyright (c) 2002-2006 Minero Aoki
 # Copyright (c) 2006-2018 Minero Aoki, Kenshi Muto and Masayoshi Takahashi
 #
diff --git a/lib/review/lineinput.rb b/lib/review/lineinput.rb
index ff4d8ea15..e429dee6d 100644
--- a/lib/review/lineinput.rb
+++ b/lib/review/lineinput.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 #
 # Copyright (c) 2002-2023 Minero Aoki, Masayoshi Takahashi, Kenshi Muto
 #
diff --git a/lib/review/location.rb b/lib/review/location.rb
index b95c14fc9..43f87c98b 100644
--- a/lib/review/location.rb
+++ b/lib/review/location.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 # Copyright (c) 2009-2019 Minero Aoki, Kenshi Muto, Masayoshi Takahashi
 # Copyright (c) 2002-2007 Minero Aoki
 #
diff --git a/lib/review/loggable.rb b/lib/review/loggable.rb
index df2abdcba..d6578287c 100644
--- a/lib/review/loggable.rb
+++ b/lib/review/loggable.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 module ReVIEW
   module Loggable
     attr_reader :logger
diff --git a/lib/review/logger.rb b/lib/review/logger.rb
index 3ef10daf2..783cced91 100644
--- a/lib/review/logger.rb
+++ b/lib/review/logger.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'logger'
 
 module ReVIEW
diff --git a/lib/review/makerhelper.rb b/lib/review/makerhelper.rb
index 436148632..87619f703 100644
--- a/lib/review/makerhelper.rb
+++ b/lib/review/makerhelper.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 # Copyright (c) 2012-2023 Yuto HAYAMIZU, Kenshi Muto
 #
 # This program is free software.
diff --git a/lib/review/markdownbuilder.rb b/lib/review/markdownbuilder.rb
index 7cc122678..5df9567da 100644
--- a/lib/review/markdownbuilder.rb
+++ b/lib/review/markdownbuilder.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 # Copyright (c) 2013-2021 KADO Masanori, Masayoshi Takahashi, Kenshi Muto
 #
 # This program is free software.
diff --git a/lib/review/md2inaobuilder.rb b/lib/review/md2inaobuilder.rb
index 8439ea3f1..674f0f5b2 100644
--- a/lib/review/md2inaobuilder.rb
+++ b/lib/review/md2inaobuilder.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 # This program is free software.
 # You can distribute or modify this program under the terms of
 # the GNU LGPL, Lesser General Public License version 2.1.
diff --git a/lib/review/pdfmaker.rb b/lib/review/pdfmaker.rb
index 7c045bae4..bcb7f6b78 100644
--- a/lib/review/pdfmaker.rb
+++ b/lib/review/pdfmaker.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 # Copyright (c) 2010-2024 Kenshi Muto and Masayoshi Takahashi
 #
 # This program is free software.
diff --git a/lib/review/plaintextbuilder.rb b/lib/review/plaintextbuilder.rb
index 78eebdf95..ee6b9560d 100644
--- a/lib/review/plaintextbuilder.rb
+++ b/lib/review/plaintextbuilder.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 # Copyright (c) 2018-2023 Kenshi Muto
 #
 # This program is free software.
diff --git a/lib/review/preprocessor.rb b/lib/review/preprocessor.rb
index 955a21897..aa71cfd44 100644
--- a/lib/review/preprocessor.rb
+++ b/lib/review/preprocessor.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 # Copyright (c) 2010-2019 Minero Aoki, Kenshi Muto
 #               2002-2009 Minero Aoki
 #
diff --git a/lib/review/preprocessor/directive.rb b/lib/review/preprocessor/directive.rb
index f2a04f4c0..ce025fc73 100644
--- a/lib/review/preprocessor/directive.rb
+++ b/lib/review/preprocessor/directive.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 # Copyright (c) 2010-2021 Minero Aoki, Kenshi Muto
 #
 # This program is free software.
diff --git a/lib/review/preprocessor/line.rb b/lib/review/preprocessor/line.rb
index 17947b644..7cb8977e0 100644
--- a/lib/review/preprocessor/line.rb
+++ b/lib/review/preprocessor/line.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 # Copyright (c) 2010-2021 Minero Aoki, Kenshi Muto
 #
 # This program is free software.
diff --git a/lib/review/preprocessor/repository.rb b/lib/review/preprocessor/repository.rb
index 5afed36a8..221c968b3 100644
--- a/lib/review/preprocessor/repository.rb
+++ b/lib/review/preprocessor/repository.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 # Copyright (c) 2010-2021 Minero Aoki, Kenshi Muto
 #
 # This program is free software.
diff --git a/lib/review/rstbuilder.rb b/lib/review/rstbuilder.rb
index 338624059..9a4d933a8 100644
--- a/lib/review/rstbuilder.rb
+++ b/lib/review/rstbuilder.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 # Copyright (c) 2008-2020 Minero Aoki, Kenshi Muto
 #               2002-2006 Minero Aoki
 #
diff --git a/lib/review/sec_counter.rb b/lib/review/sec_counter.rb
index 997b3fed7..3c2931973 100644
--- a/lib/review/sec_counter.rb
+++ b/lib/review/sec_counter.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 # Copyright (c) 2008-2017 Minero Aoki, Kenshi Muto, Masayoshi Takahashi,
 #                         KADO Masanori
 #
diff --git a/lib/review/template.rb b/lib/review/template.rb
index dc13f61d8..053cc034a 100644
--- a/lib/review/template.rb
+++ b/lib/review/template.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'erb'
 require 'review/extentions'
 module ReVIEW
diff --git a/lib/review/textbuilder.rb b/lib/review/textbuilder.rb
index 16f39f31c..08cf0d783 100644
--- a/lib/review/textbuilder.rb
+++ b/lib/review/textbuilder.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 # textbuilder.rb
 #
 # Copyright (c) 2010-2017 Kenshi Muto
diff --git a/lib/review/textmaker.rb b/lib/review/textmaker.rb
index 5ecce2de8..7c02a25ce 100644
--- a/lib/review/textmaker.rb
+++ b/lib/review/textmaker.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 # Copyright (c) 2018-2023 Kenshi Muto
 #
 # This program is free software.
diff --git a/lib/review/textutils.rb b/lib/review/textutils.rb
index 796327f4b..34904dfe9 100644
--- a/lib/review/textutils.rb
+++ b/lib/review/textutils.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 # Copyright (c) 2008-2023 Minero Aoki, Kenshi Muto, Masayoshi Takahashi,
 #                         KADO Masanori
 #               2002-2007 Minero Aoki
diff --git a/lib/review/tocprinter.rb b/lib/review/tocprinter.rb
index e7b86a0ac..770a6b774 100644
--- a/lib/review/tocprinter.rb
+++ b/lib/review/tocprinter.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 # Copyright (c) 2008-2021 Minero Aoki, Kenshi Muto
 #               1999-2007 Minero Aoki
 #
diff --git a/lib/review/topbuilder.rb b/lib/review/topbuilder.rb
index f7085ff4a..c12408c93 100644
--- a/lib/review/topbuilder.rb
+++ b/lib/review/topbuilder.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 # Copyright (c) 2008-2022 Minero Aoki, Kenshi Muto
 #               2002-2006 Minero Aoki
 #
diff --git a/lib/review/update.rb b/lib/review/update.rb
index b09354b1c..781ea534d 100644
--- a/lib/review/update.rb
+++ b/lib/review/update.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 #
 # Copyright (c) 2018-2023 Kenshi Muto
 #
diff --git a/lib/review/version.rb b/lib/review/version.rb
index e44421a63..e0a33d6ef 100644
--- a/lib/review/version.rb
+++ b/lib/review/version.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 module ReVIEW
-  VERSION = '5.10.0'.freeze
+  VERSION = '5.10.0'
 end
diff --git a/lib/review/volumeprinter.rb b/lib/review/volumeprinter.rb
index 80de3d553..f9f1cda96 100644
--- a/lib/review/volumeprinter.rb
+++ b/lib/review/volumeprinter.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 #
 # Copyright (c) 2014-2021 Minero Aoki, Kenshi Muto
 #               2003-2014 Minero Aoki
diff --git a/lib/review/webmaker.rb b/lib/review/webmaker.rb
index e795643bb..8241d847a 100644
--- a/lib/review/webmaker.rb
+++ b/lib/review/webmaker.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 # Copyright (c) 2016-2022 Masayoshi Takahashi, Masanori Kado, Kenshi Muto
 #
 # This program is free software.
diff --git a/lib/review/webtocprinter.rb b/lib/review/webtocprinter.rb
index bbc98c9d5..c9450b4f9 100644
--- a/lib/review/webtocprinter.rb
+++ b/lib/review/webtocprinter.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'review/tocprinter'
 require 'review/i18n'
 require 'review/htmlutils'
diff --git a/lib/review/yamlloader.rb b/lib/review/yamlloader.rb
index 11cc1799d..4c3318a18 100644
--- a/lib/review/yamlloader.rb
+++ b/lib/review/yamlloader.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'yaml'
 require 'date'