fix filter

[lttv.git] / ltt / branches / poly / lttv / lttv / filter.c

diff --git a/ltt/branches/poly/lttv/lttv/filter.c b/ltt/branches/poly/lttv/lttv/filter.c
index e837068cb2bfc7ba8091a5ca4ac4932d463ba993..556bf179502dd9aa3749bbe285c05ea2d976f9a2 100644 (file)
--- a/ltt/branches/poly/lttv/lttv/filter.c
+++ b/ltt/branches/poly/lttv/lttv/filter.c
@@ -1537,6 +1537,7 @@ lttv_filter_append_expression(LttvFilter* filter, const char *expression) {
 
   if(expression == NULL) return FALSE;
   if(filter == NULL) return FALSE;
+  if(expression[0] == '\0') return FALSE;  /* Empty expression */
 
   GString* s = g_string_new("");
   if(filter->expression != NULL) {