Fix all trailing whitespace (#2240)

* fix all trailing whitespace

* fix Layout/IndentationStyle as well

* add Layout/IndentationWidth and Layout/EndAlignment

* fix windows line endings

* use rubocop Layout/TrailingEmptyLines

---------

Co-authored-by: jneen <jneen@jneen.net>

Author: jneen

.rubocop.yml

@@ -24,6 +24,28 @@ Style:
 Layout:
   Enabled: false
 
+Layout/TrailingWhitespace:
+  Enabled: true
+  AllowInHeredoc: true
+
+Layout/IndentationStyle:
+  Enabled: true
+  IndentationWidth: 2
+  EnforcedStyle: spaces
+
+Layout/IndentationWidth:
+  Enabled: true
+
+Layout/EndAlignment:
+  Enabled: true
+  EnforcedStyleAlignWith: variable
+
+Layout/EndOfLine:
+  Enabled: true
+
+Layout/TrailingEmptyLines:
+  Enabled: true
+
 Metrics:
   Enabled: false
 

lib/rouge/cli.rb

@@ -347,7 +347,7 @@ def run
         formatter.format(lexer.lex(input)) { |piece| print piece }
       end
 
-    private_class_method def self.parse_cgi(str)
+      private_class_method def self.parse_cgi(str)
         pairs = URI.decode_www_form(str).map { |k, v| [k.to_sym, v] }
         Hash[pairs]
       end
@@ -510,7 +510,7 @@ def run
     end
 
 
-  private_class_method def self.normalize_syntax(argv)
+    private_class_method def self.normalize_syntax(argv)
       out = []
       argv.each do |arg|
         case arg

lib/rouge/lexers/bicep.rb

@@ -9,7 +9,7 @@ class Bicep < Rouge::RegexLexer
 
       def self.keywords
         @keywords ||= Set.new %w(
-          as assert existing extends extension false for from func if import in metadata module 
+          as assert existing extends extension false for from func if import in metadata module
           none null output param provider resource targetScope test true type using var void with
         )
       end
@@ -76,7 +76,7 @@ def self.functions
         # Ignore whitespace
         rule %r/\s+/, Text
       end
-      
+
       state :comments do
         rule %r(//[^\n\r]+), Comment::Single
         rule %r(/\*.*?\*/)m, Comment::Multiline

lib/rouge/lexers/cuda.rb

@@ -24,8 +24,8 @@ def self.keywords_type
           short1 short2 short3 short4 ushort1 ushort2 ushort3 ushort4
           int1 int2 int3 int4 uint1 uint2 uint3 uint4
           long1 long2 long3 long4 ulong1 ulong2 ulong3 ulong4
-          longlong1 longlong2 longlong3 longlong4 
-          ulonglong1 ulonglong2 ulonglong3 ulonglong4 
+          longlong1 longlong2 longlong3 longlong4
+          ulonglong1 ulonglong2 ulonglong3 ulonglong4
           float1 float2 float3 float4 double1 double2 double3 double4
           dim3
         ))

lib/rouge/lexers/dafny.rb

@@ -58,7 +58,7 @@ class Dafny < RegexLexer
       schar = /(?:[^\\"\n\r]|\\["'ntr\\0])/
       uchar = /(?:\\u#{hex_digit}{4})/
 
-      ## IMPORTANT: Rules are ordered, which allows later rules to be 
+      ## IMPORTANT: Rules are ordered, which allows later rules to be
       ## simpler than they would otherwise be
       state :root do
         rule %r(/\*), Comment::Multiline, :comment

lib/rouge/lexers/datastudio.rb

@@ -124,7 +124,7 @@ def self.sql_keywords
         rule %r/#{id}(?=\s*[(])/, Name::Function
         rule id do |m|
           name = m[0].upcase
-          
+
           if self.class.sql_keywords.include? name
             token Keyword
           else

lib/rouge/lexers/glsl.rb

@@ -43,7 +43,7 @@ def self.keywords
       def self.keywords_type
         @keywords_type ||= Set.new %w(
           int void bool float double
-          
+
           vec2 vec3 vec4 ivec2 ivec3 ivec4 bvec2 bvec3 bvec4
           uint uvec2 uvec3 uvec4
           dvec2 dvec3 dvec4

lib/rouge/lexers/go.rb

@@ -127,7 +127,7 @@ class Go < RegexLexer
                                | rune       | string     | uint8
                                | uint16     | uint32     | uint64
                                | uintptr    | uint
-      	                       )\b/x
+                               )\b/x
 
       PREDECLARED_CONSTANTS  = /\b(?:true|false|iota|nil)\b/
 

lib/rouge/lexers/haxe.rb

@@ -139,7 +139,7 @@ def self.builtins
       state :root do
         rule %r/\n/, Text, :statement
         rule %r(\{), Punctuation, :expr_start
-        
+
         mixin :comments_and_whitespace
 
         rule %r/@/, Name::Decorator, :metadata
@@ -254,7 +254,7 @@ def self.builtins
         rule %r/\\x\h{2}/, Str::Escape
         rule %r/\\u\h{4}/, Str::Escape
         rule %r/\\u\{\h{1,6}\}/, Str::Escape
-      end 
+      end
 
       state :str_interpol do
         rule %r/\}/, Str::Interpol, :pop!

lib/rouge/lexers/idris.rb

@@ -112,7 +112,7 @@ def self.prelude_functions
 
         rule %r/\[\s*\]/, Keyword::Type
         rule %r/\(\s*\)/, Name::Builtin
-        
+
         # Quasiquotations
         rule %r/(\[)([_a-z][\w']*)(\|)/ do |m|
           token Operator, m[1]