doxygen: assert that the search trie consists only of lowercase data.

Can't use `assert c.islower()` as that returns False on non-alnum chars.
Huh.

diff --git a/doxygen/dox2html5.py b/doxygen/dox2html5.py
index b7d125edd7a746a60df060c35c2642bcb4a65900..a585210b7ff07c9617e74005140a0334bdab2694 100755 (executable)
--- a/doxygen/dox2html5.py
+++ b/doxygen/dox2html5.py
@@ -71,6 +71,7 @@ class Trie:
             return
 
         char = path[0]
+        assert not char.isupper() # to avoid unnecessary duplicates
         if not char in self.children:
             self.children[char] = Trie()
         self.children[char].insert(path[1:], value)