turn off Scintilla undo collection by default and fixed memleak

 * in batch mode, Scintilla undo actions are simply leaked memory
 * Since we have more than one Scintilla view now, we must empty
   the undo buffer of all scintilla views when a command line is committed ($$)

1 files changed, 7 insertions, 0 deletions

diff --git a/src/interface.h b/src/interface.h
index a883a5f..4b5de7f 100644
--- a/src/interface.h
+++ b/src/interface.h
@@ -131,6 +131,13 @@ public:
 		undo.push(new UndoTokenSetRepresentations(impl()));
 	}
 
+	inline void
+	set_scintilla_undo(bool state)
+	{
+		ssm(SCI_EMPTYUNDOBUFFER);
+		ssm(SCI_SETUNDOCOLLECTION, state);
+	}
+
 protected:
 	void setup(void);
 };