Updates libraries, fix rubocop warnings

Author: dejan

.ruby-version

@@ -1 +1 @@
-3.0.3
+3.3.5

Gemfile

@@ -6,5 +6,12 @@ gemspec
 
 group :development do
   gem 'rake'
+  gem 'rubocop'
   gem 'test-unit'
 end
+
+gem 'racc', '~> 1.8'
+
+gem 'ostruct', '~> 0.6.1'
+
+gem 'base64', '~> 0.2.0'

Gemfile.lock

@@ -6,40 +6,56 @@ PATH
 GEM
   remote: http://rubygems.org/
   specs:
-    ast (2.4.2)
-    parallel (1.21.0)
-    parser (3.0.3.1)
+    ast (2.4.3)
+    base64 (0.2.0)
+    json (2.12.0)
+    language_server-protocol (3.17.0.5)
+    lint_roller (1.1.0)
+    ostruct (0.6.1)
+    parallel (1.27.0)
+    parser (3.3.8.0)
       ast (~> 2.4.1)
+      racc
     power_assert (2.0.1)
-    rainbow (3.0.0)
+    prism (1.4.0)
+    racc (1.8.1)
+    racc (1.8.1-java)
+    rainbow (3.1.1)
     rake (13.0.6)
-    regexp_parser (2.1.1)
-    rexml (3.2.5)
-    rubocop (1.23.0)
+    regexp_parser (2.10.0)
+    rubocop (1.75.5)
+      json (~> 2.3)
+      language_server-protocol (~> 3.17.0.2)
+      lint_roller (~> 1.1.0)
       parallel (~> 1.10)
-      parser (>= 3.0.0.0)
+      parser (>= 3.3.0.2)
       rainbow (>= 2.2.2, < 4.0)
-      regexp_parser (>= 1.8, < 3.0)
-      rexml
-      rubocop-ast (>= 1.12.0, < 2.0)
+      regexp_parser (>= 2.9.3, < 3.0)
+      rubocop-ast (>= 1.44.0, < 2.0)
       ruby-progressbar (~> 1.7)
-      unicode-display_width (>= 1.4.0, < 3.0)
-    rubocop-ast (1.13.0)
-      parser (>= 3.0.1.1)
-    ruby-progressbar (1.11.0)
+      unicode-display_width (>= 2.4.0, < 4.0)
+    rubocop-ast (1.44.1)
+      parser (>= 3.3.7.2)
+      prism (~> 1.4)
+    ruby-progressbar (1.13.0)
     test-unit (3.4.6)
       power_assert
-    unicode-display_width (2.1.0)
+    unicode-display_width (3.1.4)
+      unicode-emoji (~> 4.0, >= 4.0.4)
+    unicode-emoji (4.0.4)
 
 PLATFORMS
   universal-java-11
   x86_64-linux
 
 DEPENDENCIES
+  base64 (~> 0.2.0)
   espeak-ruby!
+  ostruct (~> 0.6.1)
+  racc (~> 1.8)
   rake
-  rubocop (~> 1.23)
+  rubocop
   test-unit
 
 BUNDLED WITH
-   2.2.32
+   2.6.9

README.md

@@ -54,7 +54,7 @@ Speech.new("Zdravo svete", voice: "sr", pitch: 90, speed: 200).speak
 
 ### Ubuntu
 
-    apt-get install espeak lame
+    sudo apt-get install espeak lame
 
 ## Licence
 

espeak-ruby.gemspec

@@ -18,9 +18,6 @@ Gem::Specification.new do |gem|
 
   gem.required_ruby_version = '>= 2.5.0'
 
-  gem.add_development_dependency 'rake', '~> 13.0.6'
-  gem.add_development_dependency 'rubocop', '~> 1.23'
-  gem.add_development_dependency 'test-unit', '~> 3.5'
   gem.metadata = {
     'rubygems_mfa_required' => 'true'
   }

lib/espeak.rb

@@ -1,5 +1,6 @@
 # frozen_string_literal: true
 
+# The main module for the ESpeak Ruby API.
 module ESpeak
   autoload :Speech, 'espeak/speech'
   autoload :Voice,  'espeak/voice'