fallback to stix when dejavu returns .nodef symbol name

zblz · zblz · commit 0ef2cd4fe504 · 2015-11-06T00:21:11.000Z
diff --git a/lib/matplotlib/mathtext.py b/lib/matplotlib/mathtext.py
@@ -835,7 +835,9 @@ def _get_glyph(self, fontname, font_class, sym, fontsize):
             if font is not None:
                 try:
                     glyphindex = font.get_char_index(uniindex)
-                    found_symbol = True
+                    symbol_name = font.get_glyph_name(glyphindex)
+                    if symbol_name != '.notdef':
+                        found_symbol = True
                 except KeyError:
                     pass
 
