Add breathe_show_enumvalue_initializer option

README.rst

@@ -173,6 +173,8 @@ Inspired by `Keepachangelog.com <http://keepachangelog.com/>`__.
 - Unreleased - Breathe v4.21.1
 
   - Fix Read the Docs build (again). #576
+  - New boolean `breathe_show_enumvalue_initializer` option specifying
+    whether value of enumvalue should be displayed. #581
 
 - 2020-09-10 - Breathe v4.21.0
 

breathe/directives.py

@@ -586,6 +586,7 @@ def setup(app: Sphinx) -> None:
     app.add_config_value("breathe_build_directory", '', True)
     app.add_config_value("breathe_default_members", (), True)
     app.add_config_value("breathe_show_define_initializer", False, 'env')
+    app.add_config_value("breathe_show_enumvalue_initializer", False, 'env')
     app.add_config_value("breathe_implementation_filename_extensions", ['.c', '.cc', '.cpp'], True)
     app.add_config_value("breathe_doxygen_config_options", {}, True)
     app.add_config_value("breathe_use_project_refids", False, "env")

breathe/renderer/sphinxrenderer.py

@@ -1656,7 +1656,10 @@ def content(contentnode):
         return self.handle_declaration(node, declaration, content_callback=content)
 
     def visit_enumvalue(self, node) -> List[Node]:
-        declaration = node.name + self.make_initializer(node)
+        if self.app.config.breathe_show_enumvalue_initializer:  # type: ignore
+            declaration = node.name + self.make_initializer(node)
+        else:
+            declaration = node.name
         return self.handle_declaration(node, declaration, obj_type='enumvalue')
 
     def visit_typedef(self, node) -> List[Node]:

documentation/source/directives.rst

@@ -518,6 +518,13 @@ Config Values
    For example a define ``MAX_LENGTH 100`` would be shown with the value 100 if this is set to ``True``,
    and without if it is set to ``False``.
 
+.. confval:: breathe_show_enumvalue_initializer
+
+   A boolean flag which can be set to ``True`` to display the initializer of an enum value in the output.
+
+   For example an enum value ``TWO = 2`` would be shown with the value 2 if this is set to ``True``,
+   and without if it is set to ``False``.
+
 .. confval:: breathe_use_project_refids
 
    True or False setting to control if the refids generated by breathe for doxygen