textpath.py: fix an issue that warning is displayed when charcode is 0

leejjoon · leejjoon · commit a1bc26a7a564 · 2012-04-17T00:32:23.000+09:00
diff --git a/lib/matplotlib/textpath.py b/lib/matplotlib/textpath.py
@@ -359,7 +359,7 @@ def get_glyphs_tex(self, prop, s, glyph_map=None,
                 if enc: charcode = enc.get(glyph, None)
                 else: charcode = glyph
 
-                if charcode:
+                if charcode is not None:
                     glyph0 = font.load_char(charcode, flags=ft2font_flag)
                 else:
                     warnings.warn("The glyph (%d) of font (%s) cannot be converted with the encoding. Glyph may be wrong" % (glyph, font_bunch.filename))
