diff --git a/.gitattributes b/.gitattributes
index e7c1d93d3..a46310098 100644
--- a/.gitattributes
+++ b/.gitattributes
@@ -1,2 +1,4 @@
 # Auto detect text files and perform LF normalization
 * text eol=lf
+
+*.png binary
diff --git a/lib/yard/handlers/c/base.rb b/lib/yard/handlers/c/base.rb
index e148fa0fc..78420d132 100644
--- a/lib/yard/handlers/c/base.rb
+++ b/lib/yard/handlers/c/base.rb
@@ -1,164 +1,164 @@
-# frozen_string_literal: true
-module YARD
-  module Handlers
-    module C
-      class Base < Handlers::Base
-        include YARD::Parser::C
-        include HandlerMethods
-
-        # @return [Boolean] whether the handler handles this statement
-        def self.handles?(statement, processor)
-          processor.globals.cruby_processed_files ||= {}
-          processor.globals.cruby_processed_files[processor.file] = true
-
-          src = statement.respond_to?(:declaration) ?
-            statement.declaration : statement.source
-
-          handlers.any? do |a_handler|
-            statement_class >= statement.class &&
-              case a_handler
-              when String
-                src == a_handler
-              when Regexp
-                src =~ a_handler
-              end
-          end
-        end
-
-        def self.statement_class(type = nil)
-          if type
-            @statement_class = type
-          else
-            (defined?(@statement_class) && @statement_class) || Statement
-          end
-        end
-
-        # @group Registering objects
-
-        def register_docstring(object, docstring = nil, stmt = nil)
-          super(object, docstring, stmt) if docstring
-        end
-
-        def register_file_info(object, file = nil, line = nil, comments = nil)
-          super(object, file, line, comments) if file
-        end
-
-        def register_source(object, source = nil, type = nil)
-          super(object, source, type) if source
-        end
-
-        def register_visibility(object, visibility = nil)
-          super(object, visibility) if visibility
-        end
-
-        # @group Looking up Symbol and Var Values
-
-        def symbols
-          globals.cruby_symbols ||= {}
-        end
-
-        def override_comments
-          globals.cruby_override_comments ||= []
-        end
-
-        def namespace_for_variable(var)
-          return namespaces[var] if namespaces[var]
-
-          # The global variables for Ruby's core error classes does not
-          # represent their Ruby name. So we need to look up these names.
-          name = ERROR_CLASS_NAMES[var]
-          return P(name) if name
-
-          # Otherwise the name is inferred from the C variable name.
-          var = remove_var_prefix(var)
-          var.empty? ? nil : P(var)
-        end
-
-        def ensure_variable_defined!(var, max_retries = 1)
-          retries = 0
-          object = nil
-
-          loop do
-            object = namespace_for_variable(var)
-            break unless object.is_a?(Proxy)
-
-            raise NamespaceMissingError, object if retries > max_retries
-            log.debug "Missing namespace variable #{var} in file `#{parser.file}', moving it to the back of the line."
-            parser.parse_remaining_files
-            retries += 1
-          end
-
-          object
-        end
-
-        def namespaces
-          globals.cruby_namespaces ||= {}
-        end
-
-        def processed_files
-          globals.cruby_processed_files ||= {}
-        end
-
-        # @group Parsing an Inner Block
-
-        def parse_block(opts = {})
-          return if !statement.block || statement.block.empty?
-          push_state(opts) do
-            parser.process(statement.block)
-          end
-        end
-
-        # @group Processing other files
-
-        def process_file(file, object)
-          file = File.cleanpath(file)
-          return if processed_files[file]
-          processed_files[file] = file
-          begin
-            log.debug "Processing embedded call to C source #{file}..."
-            globals.ordered_parser.files.delete(file) if globals.ordered_parser
-            parser.process(Parser::C::CParser.new(File.read(file), file).parse)
-          rescue Errno::ENOENT
-            log.warn "Missing source file `#{file}' when parsing #{object}"
-          end
-        end
-
-        # @endgroup
-
-        private
-
-        # Generated by update_error_map.rb (Copy+past results)
-        ERROR_CLASS_NAMES = {
-          'rb_eArgError' => 'ArgumentError',
-          'rb_eEncodingError' => 'EncodingError',
-          'rb_eException' => 'Exception',
-          'rb_eFatal' => 'fatal',
-          'rb_eFrozenError' => 'FrozenError',
-          'rb_eIndexError' => 'IndexError',
-          'rb_eInterrupt' => 'Interrupt',
-          'rb_eKeyError' => 'KeyError',
-          'rb_eLoadError' => 'LoadError',
-          'rb_eNameError' => 'NameError',
-          'rb_eNoMatchingPatternError' => 'NoMatchingPatternError',
-          'rb_eNoMemError' => 'NoMemoryError',
-          'rb_eNoMethodError' => 'NoMethodError',
-          'rb_eNotImpError' => 'NotImplementedError',
-          'rb_eRangeError' => 'RangeError',
-          'rb_eRuntimeError' => 'RuntimeError',
-          'rb_eScriptError' => 'ScriptError',
-          'rb_eSecurityError' => 'SecurityError',
-          'rb_eSignal' => 'SignalException',
-          'rb_eStandardError' => 'StandardError',
-          'rb_eSyntaxError' => 'SyntaxError',
-          'rb_eSystemCallError' => 'SystemCallError',
-          'rb_eSystemExit' => 'SystemExit',
-          'rb_eTypeError' => 'TypeError',
-        }
-
-        def remove_var_prefix(var)
-          var.gsub(/^rb_[mc]|^[a-z_]+/, '')
-        end
-      end
-    end
-  end
-end
+# frozen_string_literal: true
+module YARD
+  module Handlers
+    module C
+      class Base < Handlers::Base
+        include YARD::Parser::C
+        include HandlerMethods
+
+        # @return [Boolean] whether the handler handles this statement
+        def self.handles?(statement, processor)
+          processor.globals.cruby_processed_files ||= {}
+          processor.globals.cruby_processed_files[processor.file] = true
+
+          src = statement.respond_to?(:declaration) ?
+            statement.declaration : statement.source
+
+          handlers.any? do |a_handler|
+            statement_class >= statement.class &&
+              case a_handler
+              when String
+                src == a_handler
+              when Regexp
+                src =~ a_handler
+              end
+          end
+        end
+
+        def self.statement_class(type = nil)
+          if type
+            @statement_class = type
+          else
+            (defined?(@statement_class) && @statement_class) || Statement
+          end
+        end
+
+        # @group Registering objects
+
+        def register_docstring(object, docstring = nil, stmt = nil)
+          super(object, docstring, stmt) if docstring
+        end
+
+        def register_file_info(object, file = nil, line = nil, comments = nil)
+          super(object, file, line, comments) if file
+        end
+
+        def register_source(object, source = nil, type = nil)
+          super(object, source, type) if source
+        end
+
+        def register_visibility(object, visibility = nil)
+          super(object, visibility) if visibility
+        end
+
+        # @group Looking up Symbol and Var Values
+
+        def symbols
+          globals.cruby_symbols ||= {}
+        end
+
+        def override_comments
+          globals.cruby_override_comments ||= []
+        end
+
+        def namespace_for_variable(var)
+          return namespaces[var] if namespaces[var]
+
+          # The global variables for Ruby's core error classes does not
+          # represent their Ruby name. So we need to look up these names.
+          name = ERROR_CLASS_NAMES[var]
+          return P(name) if name
+
+          # Otherwise the name is inferred from the C variable name.
+          var = remove_var_prefix(var)
+          var.empty? ? nil : P(var)
+        end
+
+        def ensure_variable_defined!(var, max_retries = 1)
+          retries = 0
+          object = nil
+
+          loop do
+            object = namespace_for_variable(var)
+            break unless object.is_a?(Proxy)
+
+            raise NamespaceMissingError, object if retries > max_retries
+            log.debug "Missing namespace variable #{var} in file `#{parser.file}', moving it to the back of the line."
+            parser.parse_remaining_files
+            retries += 1
+          end
+
+          object
+        end
+
+        def namespaces
+          globals.cruby_namespaces ||= {}
+        end
+
+        def processed_files
+          globals.cruby_processed_files ||= {}
+        end
+
+        # @group Parsing an Inner Block
+
+        def parse_block(opts = {})
+          return if !statement.block || statement.block.empty?
+          push_state(opts) do
+            parser.process(statement.block)
+          end
+        end
+
+        # @group Processing other files
+
+        def process_file(file, object)
+          file = File.cleanpath(file)
+          return if processed_files[file]
+          processed_files[file] = file
+          begin
+            log.debug "Processing embedded call to C source #{file}..."
+            globals.ordered_parser.files.delete(file) if globals.ordered_parser
+            parser.process(Parser::C::CParser.new(File.read(file), file).parse)
+          rescue Errno::ENOENT
+            log.warn "Missing source file `#{file}' when parsing #{object}"
+          end
+        end
+
+        # @endgroup
+
+        private
+
+        # Generated by update_error_map.rb (Copy+past results)
+        ERROR_CLASS_NAMES = {
+          'rb_eArgError' => 'ArgumentError',
+          'rb_eEncodingError' => 'EncodingError',
+          'rb_eException' => 'Exception',
+          'rb_eFatal' => 'fatal',
+          'rb_eFrozenError' => 'FrozenError',
+          'rb_eIndexError' => 'IndexError',
+          'rb_eInterrupt' => 'Interrupt',
+          'rb_eKeyError' => 'KeyError',
+          'rb_eLoadError' => 'LoadError',
+          'rb_eNameError' => 'NameError',
+          'rb_eNoMatchingPatternError' => 'NoMatchingPatternError',
+          'rb_eNoMemError' => 'NoMemoryError',
+          'rb_eNoMethodError' => 'NoMethodError',
+          'rb_eNotImpError' => 'NotImplementedError',
+          'rb_eRangeError' => 'RangeError',
+          'rb_eRuntimeError' => 'RuntimeError',
+          'rb_eScriptError' => 'ScriptError',
+          'rb_eSecurityError' => 'SecurityError',
+          'rb_eSignal' => 'SignalException',
+          'rb_eStandardError' => 'StandardError',
+          'rb_eSyntaxError' => 'SyntaxError',
+          'rb_eSystemCallError' => 'SystemCallError',
+          'rb_eSystemExit' => 'SystemExit',
+          'rb_eTypeError' => 'TypeError',
+        }
+
+        def remove_var_prefix(var)
+          var.gsub(/^rb_[mc]|^[a-z_]+/, '')
+        end
+      end
+    end
+  end
+end