From 33a3ab2c8777241b73ad85024158e19fb1f9c699 Mon Sep 17 00:00:00 2001
From: Grigori Goronzy <greg@blackbox>
Date: Thu, 10 Sep 2009 04:47:21 +0200
Subject: Render NBSP (\h) as normal space

Many fonts don't have a non-breaking space (NBSP) character and this
can cause problems when these glyphs are substituted.  Render them
like a regular space.
---
 libass/ass_font.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/libass/ass_font.c b/libass/ass_font.c
index 2e8548c..7d848a2 100644
--- a/libass/ass_font.c
+++ b/libass/ass_font.c
@@ -421,6 +421,9 @@ FT_Glyph ass_font_get_glyph(void *fontconfig_priv, ASS_Font *font,
 
     if (ch < 0x20)
         return 0;
+    // Handle NBSP like a regular space when rendering the glyph
+    if (ch == 0xa0)
+        ch = ' ';
     if (font->n_faces == 0)
         return 0;
 
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