Implement option class inheritance

For now multiple, non-virtual inheritance is supported. An option class
can now also be declared abstract using the class c = 0 {...}; syntax.
New option, --exclude-base, controls whether base class information is
present in usage and documentation.

1 files changed, 9 insertions, 1 deletions

diff --git a/cli/man.cxx b/cli/man.cxx
index 93c6920..ac5d9b1 100644
--- a/cli/man.cxx
+++ b/cli/man.cxx
@@ -120,6 +120,9 @@ namespace
     class_ (context& c)
         : context (c), option_ (c)
     {
+      *this >> inherits_base_ >> base_ >> inherits_base_;
+      base_ >> names_option_;
+
       names_option_ >> option_;
     }
 
@@ -137,13 +140,18 @@ namespace
           return;
       }
 
+      if (!options.exclude_base ())
+        inherits (c, inherits_base_);
+
       names (c, names_option_);
     }
 
   private:
-    bool generated_;
     option option_;
     traversal::names names_option_;
+
+    traversal::class_ base_;
+    traversal::inherits inherits_base_;
   };
 }