Properly warn when glyph is not in encoding.

anntzer · anntzer · commit 51436bfb4d3b · 2019-04-02T11:35:42.000+02:00
diff --git a/lib/matplotlib/textpath.py b/lib/matplotlib/textpath.py
@@ -312,8 +312,15 @@ def get_glyphs_tex(self, prop, s, glyph_map=None,
                 font.set_size(self.FONT_SCALE, self.DPI)
                 # See comments in _get_ps_font_and_encoding.
                 if enc is not None:
-                    index = font.get_name_index(enc[glyph])
-                    font.load_glyph(index, flags=LOAD_TARGET_LIGHT)
+                    if glyph not in enc:
+                        _log.warning(
+                            "The glyph %d of font %s cannot be converted with "
+                            "the encoding; glyph may be wrong.",
+                            glyph, font.fname)
+                        font.load_char(glyph, flags=LOAD_TARGET_LIGHT)
+                    else:
+                        index = font.get_name_index(enc[glyph])
+                        font.load_glyph(index, flags=LOAD_TARGET_LIGHT)
                 else:
                     index = glyph
                     font.load_char(index, flags=LOAD_TARGET_LIGHT)
