From d753ac78da5619a0a545cdaf7a8e65787e996570 Mon Sep 17 00:00:00 2001
From: Behdad Esfahbod <behdad@behdad.org>
Date: Tue, 9 Aug 2011 14:03:12 +0200
Subject: [PATCH] [uniscribe] Remove zerowidth glyphs from output

---
 src/hb-uniscribe-shape.cc | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/src/hb-uniscribe-shape.cc b/src/hb-uniscribe-shape.cc
index a0020cacf..e583ae15e 100644
--- a/src/hb-uniscribe-shape.cc
+++ b/src/hb-uniscribe-shape.cc
@@ -399,9 +399,13 @@ retry:
 #undef FAIL
 
   /* Set glyph infos */
+  buffer->len = 0;
   for (unsigned int i = 0; i < glyphs_len; i++)
   {
-    hb_glyph_info_t *info = &buffer->info[i];
+    if (glyph_props[i].sva.fZeroWidth)
+      continue;
+
+    hb_glyph_info_t *info = &buffer->info[buffer->len++];
 
     info->codepoint = glyphs[i];
     info->cluster = vis_clusters[i];
@@ -411,7 +415,6 @@ retry:
     info->var1.u32 = offsets[i].du;
     info->var2.u32 = offsets[i].dv;
   }
-  buffer->len = glyphs_len;
 
   /* Set glyph positions */
   buffer->clear_positions ();