* src/ltlvisit/basicreduce.hh: New file, extracted from ...

* src/ltlvisit/reducform.hh: ... here.
* src/ltlvisit/basereduc.cc: Rename as ...
* src/ltlvisit/basicreduce.cc: ... this, to match the function name.
* src/ltlvisit/Makefile.am (ltlvisit_HEADERS, libltlvisit_la_SOURCES):
Adjust filenames.
* src/ltlvisit/reducform.cc: Adjust includes.

src/ltlvisit/basicreduce.hh

@@ -0,0 +1,41 @@
+// Copyright (C) 2004  Laboratoire d'Informatique de Paris 6 (LIP6),
+// département Systèmes Répartis Coopératifs (SRC), Université Pierre
+// et Marie Curie.
+//
+// This file is part of Spot, a model checking library.
+//
+// Spot 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.
+//
+// Spot 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 Spot; see the file COPYING.  If not, write to the Free
+// Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
+// 02111-1307, USA.
+
+#ifndef SPOT_LTLVISIT_BASICREDUCE_HH
+# define SPOT_LTLVISIT_BASICREDUCE_HH
+
+#include "ltlast/formula.hh"
+
+namespace spot
+{
+  namespace ltl
+  {
+    /// Basic rewritings.
+    formula* basic_reduce(const formula* f);
+
+    /// Whether a formula starts with GF.
+    bool is_GF(const formula* f);
+    /// Whether a formula starts with FG.
+    bool is_FG(const formula* f);
+  }
+}
+
+#endif //  SPOT_LTLVISIT_BASICREDUCE_HH