[Commit-gnuradio] [gnuradio] 02/04: grc: fix IndexError when consuming \b in console (#1043)

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jcorgan pushed a commit to branch maint
in repository gnuradio.

commit dc5a05d68888a9924d1f15bc58a80c7e54bfffe0
Author: Sebastian Koslowski <address@hidden>
Date:   Fri Oct 21 09:20:22 2016 +0200

    grc: fix IndexError when consuming \b in console (#1043)
---
 grc/gui/Dialogs.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/grc/gui/Dialogs.py b/grc/gui/Dialogs.py
index 1d11435..83ad965 100644
--- a/grc/gui/Dialogs.py
+++ b/grc/gui/Dialogs.py
@@ -72,7 +72,7 @@ class TextDisplay(SimpleTextDisplay):
         # for each \b delete one char from the buffer
         back_count = 0
         start_iter = self.get_buffer().get_end_iter()
-        while line[back_count] == '\b':
+        while len(line) > back_count and line[back_count] == '\b':
             # stop at the beginning of a line
             if not start_iter.starts_line(): start_iter.backward_char()
             back_count += 1