[gnome-builder] libide: check for printable char in tracing macro

[Christian Hergert <chergert src gnome org>]

commit 4df30cf2cffc757674e96bd0866554eaf5470b60
Author: Christian Hergert <christian hergert me>
Date:   Wed Mar 4 02:03:54 2015 -0800

    libide: check for printable char in tracing macro

 libide/ide-source-view.c |    5 ++++-
 1 files changed, 4 insertions(+), 1 deletions(-)
---
diff --git a/libide/ide-source-view.c b/libide/ide-source-view.c
index bd80247..48ae765 100644
--- a/libide/ide-source-view.c
+++ b/libide/ide-source-view.c
@@ -1194,11 +1194,14 @@ ide_source_view_key_press_event (GtkWidget   *widget,
 
 #ifndef IDE_DISABLE_TRACE
       {
+        gunichar ch = 0;
         gchar *name = NULL;
 
         g_object_get (priv->mode, "name", &name, NULL);
+        if (event->string)
+          ch = g_utf8_get_char (event->string);
         IDE_TRACE_MSG ("dispatching to mode \"%s\": (%s)",
-                       name, event->string ?: "");
+                       name, g_unichar_isprint (ch) ? event->string : "");
         g_free (name);
       }
 #endif