Added: Logical operator "not" to expression language (see e.g. If and Eval commands).

parser/LogicalOperators.cpp

@@ -0,0 +1,44 @@
+/*
+    This file is part of Equalizer APO, a system-wide equalizer.
+    Copyright (C) 2019  Jonas Thedering
+
+    This program is free software; you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation; either version 2 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License along
+    with this program; if not, write to the Free Software Foundation, Inc.,
+    51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+*/
+
+#include "stdafx.h"
+#include "LogicalOperators.h"
+
+using namespace std;
+using namespace mup;
+
+NotOperator::NotOperator()
+	: IOprtInfix(L"not", prINFIX)
+{}
+
+void NotOperator::Eval(ptr_val_type& ret, const ptr_val_type* arg, int argc)
+{
+	assert(argc == 1);
+	*ret = !arg[0]->GetBool();
+}
+
+const char_type* NotOperator::GetDesc() const
+{
+	return L"logical not";
+}
+
+IToken* NotOperator::Clone() const
+{
+	return new NotOperator(*this);
+}