style: auto-correct offenses

Author: DirtyF

.rubocop_todo.yml

@@ -1,12 +1,12 @@
-class NoRedisError < LoadError
+class NoRedisError < RuntimeError
   def initialize
     msg =
-      %q{The Redis Backend can only be used if Redis is installed.
+      %q(The Redis Backend can only be used if Redis is installed.
         This error is raised from 'lib/classifier-reborn/backends/bayes_redis_backend.rb'.
         If you have encountered this error and would like to use the Redis Backend,
         please run 'gem install redis' or include 'gem "redis"' in
         your gemfile. For more info see https://github.com/jekyll/classifier-reborn#usage.
-      }
+      )
     super(msg)
   end
 end

lib/classifier-reborn/backends/no_redis_error.rb

@@ -54,18 +54,12 @@ def initialize(*args)
       @backend             = options[:backend]
       @tokenizer           = options[:tokenizer] || Tokenizer::Whitespace
       @token_filters       = options[:token_filters] || [TokenFilter::Stopword]
-      if @enable_stemmer && !@token_filters.include?(TokenFilter::Stemmer)
-        @token_filters << TokenFilter::Stemmer
-      end
-      if @token_filters.include?(TokenFilter::Stopword)
-        TokenFilter::Stopword.language = @language
-      end
+      @token_filters << TokenFilter::Stemmer if @enable_stemmer && !@token_filters.include?(TokenFilter::Stemmer)
+      TokenFilter::Stopword.language = @language if @token_filters.include?(TokenFilter::Stopword)
 
       populate_initial_categories
 
-      if options.key?(:stopwords)
-        custom_stopwords options[:stopwords]
-      end
+      custom_stopwords options[:stopwords] if options.key?(:stopwords)
     end
 
     # Provides a general training method for all categories specified in Bayes#new
@@ -168,7 +162,7 @@ def classify_with_score(text)
     # Return the classification without the score
     def classify(text)
       result, score = classify_with_score(text)
-      result = nil if score < @threshold || score == Float::INFINITY if threshold_enabled?
+      result = nil if threshold_enabled? && (score < @threshold || score == Float::INFINITY)
       result
     end
 
@@ -256,7 +250,7 @@ def add_category(category)
       @backend.add_category(category)
     end
 
-    alias_method :append_category, :add_category
+    alias append_category add_category
 
     def reset
       @backend.reset
@@ -277,7 +271,7 @@ def custom_stopwords(stopwords)
         if stopwords.strip.empty?
           stopwords = []
         elsif File.exist?(stopwords)
-          stopwords = File.read(stopwords).force_encoding("utf-8").split
+          stopwords = File.read(stopwords).force_encoding('utf-8').split
         else
           return # Do not overwrite the default
         end

lib/classifier-reborn/bayes.rb

@@ -1,5 +1,3 @@
-# encoding: utf-8
-
 # Author::    Lucas Carlson  (mailto:lucas@rufy.com)
 # Copyright:: Copyright (c) 2005 Lucas Carlson
 # License::   LGPL

lib/classifier-reborn/extensions/hasher.rb

@@ -1,5 +1,3 @@
-# encoding: utf-8
-
 # Author::    Lucas Carlson  (mailto:lucas@rufy.com)
 # Copyright:: Copyright (c) 2005 Lucas Carlson
 # License::   LGPL

lib/classifier-reborn/extensions/token_filter/stemmer.rb

@@ -1,5 +1,3 @@
-# encoding: utf-8
-
 # Author::    Lucas Carlson  (mailto:lucas@rufy.com)
 # Copyright:: Copyright (c) 2005 Lucas Carlson
 # License::   LGPL
@@ -31,7 +29,7 @@ def add_custom_stopword_path(path)
 
         STOPWORDS_PATH.each do |path|
           if File.exist?(File.join(path, language))
-            hash[language] = Set.new File.read(File.join(path, language.to_s)).force_encoding("utf-8").split
+            hash[language] = Set.new File.read(File.join(path, language.to_s)).force_encoding('utf-8').split
             break
           end
         end

lib/classifier-reborn/extensions/token_filter/stopword.rb

@@ -1,5 +1,3 @@
-# encoding: utf-8
-
 # Author::    Lucas Carlson  (mailto:lucas@rufy.com)
 # Copyright:: Copyright (c) 2005 Lucas Carlson
 # License::   LGPL

lib/classifier-reborn/extensions/token_filter/symbol.rb

@@ -1,5 +1,3 @@
-# encoding: utf-8
-
 # Author::    Lucas Carlson  (mailto:lucas@rufy.com)
 # Copyright:: Copyright (c) 2005 Lucas Carlson
 # License::   LGPL

lib/classifier-reborn/extensions/tokenizer/token.rb

@@ -1,5 +1,3 @@
-# encoding: utf-8
-
 # Author::    Lucas Carlson  (mailto:lucas@rufy.com)
 # Copyright:: Copyright (c) 2005 Lucas Carlson
 # License::   LGPL

lib/classifier-reborn/extensions/tokenizer/whitespace.rb

@@ -10,14 +10,14 @@ def self.diag(s)
     Matrix.diagonal(*s)
   end
 
-  alias_method :trans, :transpose
+  alias trans transpose
 
   def SV_decomp(maxSweeps = 20)
-    if row_size >= column_size
-      q = trans * self
-    else
-      q = self * trans
-    end
+    q = if row_size >= column_size
+          trans * self
+        else
+          self * trans
+        end
 
     qrot    = q.dup
     v       = Matrix.identity(q.row_size)
@@ -31,11 +31,11 @@ def SV_decomp(maxSweeps = 20)
         (1..qrot.row_size - 1).each do |col|
           next if row == col
 
-          if (2.0 * qrot[row, col]) == (qrot[row, row] - qrot[col, col])
-            h = Math.atan(1) / 2.0
-          else
-            h = Math.atan((2.0 * qrot[row, col]) / (qrot[row, row] - qrot[col, col])) / 2.0
-          end
+          h = if (2.0 * qrot[row, col]) == (qrot[row, row] - qrot[col, col])
+                Math.atan(1) / 2.0
+              else
+                Math.atan((2.0 * qrot[row, col]) / (qrot[row, row] - qrot[col, col])) / 2.0
+              end
           hcos = Math.cos(h)
           hsin = Math.sin(h)
           mzrot = Matrix.identity(qrot.row_size)