freeze string literals in files

Gemfile

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 source 'http://rubygems.org'
 
 gemspec

Guardfile

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 guard :shell do
   watch(/\.rb$/) { `rake` }
 end

Rakefile

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'rake/clean'
 require 'pathname'
 require "bundler/gem_tasks"

bin/rougify

@@ -1,4 +1,5 @@
 #!/usr/bin/env ruby
+# frozen_string_literal: true
 
 require 'pathname'
 ROOT_DIR = Pathname.new(__FILE__).dirname.parent

config.ru

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'pathname'
 
 here = Pathname.new(__FILE__).dirname

lib/rouge/cli.rb

@@ -366,7 +366,7 @@ def run
         puts "== Available Lexers =="
 
         Lexer.all.sort_by(&:tag).each do |lexer|
-          desc = String.new("#{lexer.desc}")
+          desc = +"#{lexer.desc}"
           if lexer.aliases.any?
             desc << " [aliases: #{lexer.aliases.join(',')}]"
           end

lib/rouge/formatter.rb

@@ -34,7 +34,7 @@ def initialize(opts={})
     def format(tokens, &b)
       return stream(tokens, &b) if block_given?
 
-      out = String.new('')
+      out = +''
       stream(tokens) { |piece| out << piece }
 
       out

lib/rouge/formatters/html_table.rb

@@ -22,8 +22,8 @@ def style(scope)
 
       def stream(tokens, &b)
         num_lines = 0
-        last_val = ''
-        formatted = String.new('')
+        last_val  = ''
+        formatted = +''
 
         tokens.each do |tok, val|
           last_val = val

lib/rouge/lexers/crystal.rb

@@ -1,4 +1,5 @@
 # -*- coding: utf-8 -*- #
+# frozen_string_literal: true
 
 module Rouge
   module Lexers

lib/rouge/lexers/gherkin/keywords.rb

@@ -1,4 +1,6 @@
 # -*- coding: utf-8 -*- #
+# frozen_string_literal: true
+
 # automatically generated by `rake builtins:gherkin`
 module Rouge
   module Lexers

lib/rouge/lexers/hcl.rb

@@ -1,4 +1,5 @@
 # -*- coding: utf-8 -*- #
+# frozen_string_literal: true
 
 module Rouge
   module Lexers

lib/rouge/lexers/jsp.rb

@@ -1,4 +1,5 @@
 # -*- coding: utf-8 -*- #
+# frozen_string_literal: true
 
 module Rouge
   module Lexers

lib/rouge/lexers/lua/builtins.rb

@@ -1,4 +1,6 @@
 # -*- coding: utf-8 -*- #
+# frozen_string_literal: true
+
 # automatically generated by `rake builtins:lua`
 module Rouge
   module Lexers

lib/rouge/lexers/m68k.rb

@@ -1,4 +1,5 @@
 # -*- coding: utf-8 -*- #
+# frozen_string_literal: true
 
 module Rouge
   module Lexers

lib/rouge/lexers/mathematica.rb

@@ -1,4 +1,5 @@
 # -*- coding: utf-8 -*- #
+# frozen_string_literal: true
 
 module Rouge
   module Lexers

lib/rouge/lexers/mathematica/builtins.rb

@@ -1,4 +1,6 @@
 # -*- coding: utf-8 -*- #
+# frozen_string_literal: true
+
 # automatically generated by `rake builtins:mathematica`
 module Rouge
   module Lexers

lib/rouge/lexers/matlab/builtins.rb

@@ -1,4 +1,6 @@
 # -*- coding: utf-8 -*- #
+# frozen_string_literal: true
+
 # automatically generated by `rake builtins:matlab`
 module Rouge
   module Lexers

lib/rouge/lexers/sqf.rb

@@ -1,4 +1,5 @@
 # -*- coding: utf-8 -*- #
+# frozen_string_literal: true
 
 module Rouge
   module Lexers

lib/rouge/lexers/sqf/commands.rb

@@ -1,4 +1,6 @@
 # -*- coding: utf-8 -*- #
+# frozen_string_literal: true
+
 # automatically generated by `rake builtins:sqf`
 module Rouge
   module Lexers

lib/rouge/lexers/terraform.rb

@@ -1,4 +1,5 @@
 # -*- coding: utf-8 -*- #
+# frozen_string_literal: true
 
 module Rouge
   module Lexers

lib/rouge/lexers/viml/keywords.rb

@@ -1,4 +1,6 @@
 # encoding: utf-8
+# frozen_string_literal: true
+
 # DO NOT EDIT: automatically generated by `rake builtins:vim`.
 # see tasks/vim.rake for more info.
 module Rouge

rouge.gemspec

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require './lib/rouge/version'
 
 Gem::Specification.new do |s|

spec/cli_spec.rb

@@ -1,4 +1,5 @@
 # -*- coding: utf-8 -*- #
+# frozen_string_literal: true
 
 require 'rouge/cli'
 

spec/formatter_spec.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 describe Rouge::Formatter do
   it 'finds terminal256' do
     assert { Rouge::Formatter.find('terminal256') }

spec/formatters/html_linewise_spec.rb

@@ -1,4 +1,5 @@
 # -*- coding: utf-8 -*- #
+# frozen_string_literal: true
 
 describe Rouge::Formatters::HTMLLinewise do
   let(:subject) { Rouge::Formatters::HTMLLinewise.new(formatter, options) }

spec/formatters/html_pygments_spec.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 describe Rouge::Formatters::HTMLPygments do
   let(:formatter) { Rouge::Formatters::HTML.new }
   let(:source) { 'echo "Hello World"' }

spec/formatters/html_spec.rb

@@ -1,4 +1,5 @@
 # -*- coding: utf-8 -*- #
+# frozen_string_literal: true
 
 describe Rouge::Formatters::HTML do
   let(:subject) { Rouge::Formatters::HTMLLegacy.new(options) }

spec/formatters/null_spec.rb

@@ -1,4 +1,5 @@
 # -*- coding: utf-8 -*- #
+# frozen_string_literal: true
 
 describe Rouge::Formatters::Null do
   let(:subject) { Rouge::Formatters::Null.new }

spec/formatters/terminal256_spec.rb

@@ -1,4 +1,5 @@
 # -*- coding: utf-8 -*- #
+# frozen_string_literal: true
 
 describe Rouge::Formatters::Terminal256 do
   let(:subject) { Rouge::Formatters::Terminal256.new }

spec/guesser_spec.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 describe Rouge::Guesser do
   include Support::Guessing
 

spec/lexer_spec.rb

@@ -1,4 +1,5 @@
 # -*- coding: utf-8 -*- #
+# frozen_string_literal: true
 
 describe Rouge::Lexer do
   include Support::Lexing

spec/lexers/abap_spec.rb

@@ -1,4 +1,5 @@
 # -*- coding: utf-8 -*- #
+# frozen_string_literal: true
 
 describe Rouge::Lexers::ABAP do
   let(:subject) { Rouge::Lexers::ABAP.new }

spec/lexers/apache_spec.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 describe Rouge::Lexers::Apache do
   let(:subject) { Rouge::Lexers::Apache.new }
 

spec/lexers/apiblueprint_spec.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 describe Rouge::Lexers::APIBlueprint do
   let(:subject) { Rouge::Lexers::APIBlueprint.new }
 

spec/lexers/apple_script_spec.rb

@@ -1,4 +1,5 @@
 # -*- coding: utf-8 -*- #
+# frozen_string_literal: true
 
 describe Rouge::Lexers::AppleScript do
   let(:subject) { Rouge::Lexers::AppleScript.new }

spec/lexers/awk_spec.rb

@@ -1,4 +1,5 @@
 # -*- coding: utf-8 -*- #
+# frozen_string_literal: true
 
 describe Rouge::Lexers::Awk do
   let(:subject) { Rouge::Lexers::Awk.new }

spec/lexers/biml_spec.rb

@@ -1,4 +1,5 @@
 # -*- coding: utf-8 -*- #
+# frozen_string_literal: true
 
 describe Rouge::Lexers::BIML do
   let(:subject) { Rouge::Lexers::BIML.new }

spec/lexers/bsl_spec.rb

@@ -1,4 +1,5 @@
 # -*- coding: utf-8 -*- #
+# frozen_string_literal: true
 
 describe Rouge::Lexers::Bsl do
   let(:subject) { Rouge::Lexers::Bsl.new }

spec/lexers/c_spec.rb

@@ -1,4 +1,5 @@
 # -*- coding: utf-8 -*- #
+# frozen_string_literal: true
 
 describe Rouge::Lexers::C do
   let(:subject) { Rouge::Lexers::C.new }

spec/lexers/ceylon_spec.rb

@@ -1,4 +1,5 @@
 # -*- coding: utf-8 -*- #
+# frozen_string_literal: true
 
 describe Rouge::Lexers::Ceylon do
   let(:subject) { Rouge::Lexers::Ceylon.new }

spec/lexers/cfscript_spec.rb

@@ -1,4 +1,5 @@
 # -*- coding: utf-8 -*- #
+# frozen_string_literal: true
 
 describe Rouge::Lexers::Cfscript do
   let(:subject) { Rouge::Lexers::Cfscript.new }

spec/lexers/clojure_spec.rb

@@ -1,4 +1,5 @@
 # -*- coding: utf-8 -*- #
+# frozen_string_literal: true
 
 describe Rouge::Lexers::Clojure do
   let(:subject) { Rouge::Lexers::Clojure.new }

spec/lexers/cmake_spec.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 describe Rouge::Lexers::CMake do
   let(:subject) { Rouge::Lexers::CMake.new }
 

spec/lexers/coffeescript_spec.rb

@@ -1,4 +1,5 @@
 # -*- coding: utf-8 -*- #
+# frozen_string_literal: true
 
 describe Rouge::Lexers::Coffeescript do
   let(:subject) { Rouge::Lexers::Coffeescript.new }

spec/lexers/common_lisp_spec.rb

@@ -1,4 +1,5 @@
 # -*- coding: utf-8 -*- #
+# frozen_string_literal: true
 
 describe Rouge::Lexers::CommonLisp do
   let(:subject) { Rouge::Lexers::CommonLisp.new }

spec/lexers/conf_spec.rb

@@ -1,4 +1,5 @@
 # -*- coding: utf-8 -*- #
+# frozen_string_literal: true
 
 describe Rouge::Lexers::Conf do
   let(:subject) { Rouge::Lexers::Conf.new }

spec/lexers/coq_spec.rb

@@ -1,4 +1,5 @@
 # -*- coding: utf-8 -*- #
+# frozen_string_literal: true
 
 describe Rouge::Lexers::Coq do
   let(:subject) { Rouge::Lexers::Coq.new }

spec/lexers/cpp_spec.rb

@@ -1,4 +1,5 @@
 # -*- coding: utf-8 -*- #
+# frozen_string_literal: true
 
 describe Rouge::Lexers::Cpp do
   let(:subject) { Rouge::Lexers::Cpp.new }

spec/lexers/crystal_spec.rb

@@ -1,4 +1,5 @@
 # -*- coding: utf-8 -*- #
+# frozen_string_literal: true
 
 describe Rouge::Lexers::Crystal do
   let(:subject) { Rouge::Lexers::Crystal.new }

spec/lexers/csharp_spec.rb

@@ -1,4 +1,5 @@
 # -*- coding: utf-8 -*- #
+# frozen_string_literal: true
 
 describe Rouge::Lexers::CSharp do
   let(:subject) { Rouge::Lexers::CSharp.new }

spec/lexers/css_spec.rb

@@ -1,4 +1,5 @@
 # -*- coding: utf-8 -*- #
+# frozen_string_literal: true
 
 describe Rouge::Lexers::CSS do
   let(:subject) { Rouge::Lexers::CSS.new }

spec/lexers/d_spec.rb

@@ -1,4 +1,5 @@
 # -*- coding: utf-8 -*- #
+# frozen_string_literal: true
 
 describe Rouge::Lexers::D do
   let(:subject) { Rouge::Lexers::D.new }

spec/lexers/dart_spec.rb

@@ -1,4 +1,5 @@
 # -*- coding: utf-8 -*- #
+# frozen_string_literal: true
 
 describe Rouge::Lexers::Dart do
   let(:subject) { Rouge::Lexers::Dart.new }

spec/lexers/diff_spec.rb

@@ -1,4 +1,5 @@
 # -*- coding: utf-8 -*- #
+# frozen_string_literal: true
 
 describe Rouge::Lexers::Diff do
   let(:subject) { Rouge::Lexers::Diff.new }

spec/lexers/digdag_spec.rb

@@ -1,4 +1,5 @@
 # -*- coding: utf-8 -*- #
+# frozen_string_literal: true
 
 describe Rouge::Lexers::Digdag do
   let(:subject) { Rouge::Lexers::Digdag.new }

spec/lexers/docker_spec.rb

@@ -1,4 +1,5 @@
 # -*- coding: utf-8 -*- #
+# frozen_string_literal: true
 
 describe Rouge::Lexers::Docker do
   let(:subject) { Rouge::Lexers::Docker.new }

spec/lexers/dot_spec.rb

@@ -1,4 +1,5 @@
 # -*- coding: utf-8 -*- #
+# frozen_string_literal: true
 
 describe Rouge::Lexers::Dot do
   let(:subject) { Rouge::Lexers::Dot.new }

spec/lexers/eiffel_spec.rb

@@ -1,4 +1,5 @@
 # -*- coding: utf-8 -*- #
+# frozen_string_literal: true
 
 describe Rouge::Lexers::Eiffel do
   let(:subject) { Rouge::Lexers::Eiffel.new }

spec/lexers/elixir_spec.rb

@@ -1,4 +1,5 @@
 # -*- coding: utf-8 -*- #
+# frozen_string_literal: true
 
 describe Rouge::Lexers::Elixir do
   let(:subject) { Rouge::Lexers::Elixir.new }

spec/lexers/elm_spec.rb

@@ -1,4 +1,5 @@
 # -*- coding: utf-8 -*- #
+# frozen_string_literal: true
 
 describe Rouge::Lexers::Elm do
   let(:subject) { Rouge::Lexers::Elm.new }

spec/lexers/erb_spec.rb

@@ -1,4 +1,5 @@
 # -*- coding: utf-8 -*- #
+# frozen_string_literal: true
 
 describe Rouge::Lexers::ERB do
   let(:subject) { Rouge::Lexers::ERB.new }

spec/lexers/erlang_spec.rb

@@ -1,4 +1,5 @@
 # -*- coding: utf-8 -*- #
+# frozen_string_literal: true
 
 describe Rouge::Lexers::Erlang do
   let(:subject) { Rouge::Lexers::Erlang.new }

spec/lexers/factor_spec.rb

@@ -1,4 +1,5 @@
 # -*- coding: utf-8 -*- #
+# frozen_string_literal: true
 
 describe Rouge::Lexers::Factor do
   let(:subject) { Rouge::Lexers::Factor.new }