Make undefined Unicode characters show up in a nicer way in braille.

third_party/liblouis/cvox-common.cti

Index: third_party/liblouis/cvox-common.cti
diff --git a/third_party/liblouis/cvox-common.cti b/third_party/liblouis/cvox-common.cti
new file mode 100644
index 0000000000000000000000000000000000000000..69fa7a2ea0360da46de3956efed5ecbed4271045
--- /dev/null
+++ b/third_party/liblouis/cvox-common.cti
@@ -0,0 +1,15 @@
+# Copyright 2014 The Chromium Authors. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+# Common definitions appended to all braille tables used by liblouis
+# in ChromeVox.
+
+# All tables get the Unicode braille patterns.  They are included by some
+# tables, but not consistently, and adding them again is harmless.
+include braille-patterns.cti
+
+# Use dot 8 to represent undefined Unicode characters.
+# While not ideal, this is much preferable to the built-in default of
+# the code point value preced by a backslash.
+undefined 8

[David Tseng, 2014/09/22 17:53:05]

Does this mean something in any of the tables we have (to your knowledge)?
Alternatives to this would be using the question mark (?) in the particular
table chosen.