feat: Append ascii name if any 8bit UTF8 chars (ietf-tools#9173)

Fixes: 7167

Author: richsalz

ietf/utils/tests.py

@@ -709,6 +709,14 @@ def test_render_author_name(self):
             )),
             "Joanna Q. Public",
         )
+        self.assertEqual(
+            XMLDraft.render_author_name(lxml.etree.Element(
+                "author",
+                fullname=chr(340)+"ich",
+                asciiFullname="Rich UTF-8",
+            )),
+            chr(340)+"ich (Rich UTF-8)",
+        )
         self.assertEqual(
             XMLDraft.render_author_name(lxml.etree.Element(
                 "author",

ietf/utils/xmldraft.py

@@ -233,6 +233,12 @@ def render_author_name(author_elt):
         # Use fullname attribute, if present
         fullname = author_elt.attrib.get("fullname", "").strip()
         if fullname:
+            # If any 8bit chars in the fullname, try to append the author's
+            # name in ascii.
+            if any([x >= 0x80 for x in fullname.encode('utf8')]):
+                asciifullname = author_elt.attrib.get("asciiFullname", "").strip()
+                if asciifullname:
+                    fullname = fullname + ' (' + asciifullname + ')'
             return fullname
         surname = author_elt.attrib.get("surname", "").strip()
         initials = author_elt.attrib.get("initials", "").strip()