randltl: first stage of the reimplementation

* src/bin/common_range.cc, src/bin/common_range.hh: New files,
extracted from...
* src/bin/genltl.cc: ... here.
* src/bin/randltl.cc, src/bin/man/randltl.x: New files.
* src/bin/Makefile.am, src/bin/man/Makefile.am: Adjust.
* src/bin/man/genltl.x: Point to randltl(1).

src/bin/common_range.hh

@@ -0,0 +1,39 @@
+// -*- coding: utf-8 -*-
+// Copyright (C) 2012 Laboratoire de Recherche et Développement de
+// l'Epita (LRDE).
+//
+// 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_BIN_COMMON_RANGE_HH
+#define SPOT_BIN_COMMON_RANGE_HH
+
+
+#define RANGE_DOC \
+    { 0, 0, 0, 0, "RANGE may have one of the following forms: 'INT', " \
+      "'INT..INT', or '..INT'.\nIn the latter case, the missing number " \
+      "is assumed to be 1.", 0 }
+
+struct range
+{
+  int min;
+  int max;
+};
+
+range parse_range(const char* str);
+
+#endif // SPOT_BIN_COMMON_RANGE_HH