Add text I/O for Kripke structures.

* src/kripke/kripkeexplicit.cc, src/kripke/kripkeexplicit.hh,
src/kripke/kripkeprint.cc, src/kripke/kripkeprint.hh: New files.
* src/kripke/Makefile.am: Add them.
* src/kripkeparse/fmterror.cc, src/kripkeparse/kripkeparse.yy,
src/kripkeparse/kripkescan.ll, src/kripkeparse/parsedecl.hh,
src/kripkeparse/public.hh, src/kripkeparse/scankripke.ll: New
files.
* src/kripkeparse/Makefile.am: Add them.
* src/kripketest/bad_parsing.test, src/kripketest/defs.in,
src/kripketest/kripke.test, src/kripketest/origin,
src/kripketest/parse_print_test.cc: New files.
* src/kripketest/Makefile.am: Add them.
* src/Makefile.am (SUBDIRS): Add kripkeparse and kripketest.
* README: Document src/kripketest/ and src/kripkeparse/.
* configure.ac: Generate src/kripkeparse/Makefile,
src/kripketest/Makefile, src/kripketest/defs.
* iface/dve2/defs.in (run2): New function.
* iface/dve2/dve2check.cc (syntax, main): Add option -gK.
* iface/dve2/kripke.test: New file.
* iface/dve2/Makefile.am (TESTS): Add kripke.test.

src/kripkeparse/public.hh

@@ -0,0 +1,68 @@
+// Copyright (C) 2011 Laboratoire de Recherche et Developpement
+// 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_KRIPKEPARSE_PUBLIC_HH
+# define SPOT_KRIPKEPARSE_PUBLIC_HH
+
+# include "kripke/kripkeexplicit.hh"
+// Unfortunately Bison 2.3 uses the same guards in all parsers :(
+# undef BISON_LOCATION_HH
+# undef BISON_POSITION_HH
+# include "kripkeparse/location.hh"
+# include "ltlenv/defaultenv.hh"
+# include <string>
+# include <list>
+# include <utility>
+# include <iosfwd>
+
+namespace spot
+{
+
+  /// \brief A parse diagnostic with its location.
+  typedef std::pair<kripkeyy::location, std::string> kripke_parse_error;
+  /// \brief A list of parser diagnostics, as filled by parse.
+  typedef std::list<kripke_parse_error> kripke_parse_error_list;
+
+
+
+  kripke_explicit*
+  kripke_parse(const std::string& name,
+               kripke_parse_error_list& error_list,
+               bdd_dict* dict,
+               ltl::environment& env
+               = ltl::default_environment::instance(),
+               bool debug = false);
+
+
+  /// \brief Format diagnostics produced by spot::kripke_parse.
+  /// \param os Where diagnostics should be output.
+  /// \param filename The filename that should appear in the diagnostics.
+  /// \param error_list The error list filled by spot::ltl::parse while
+  ///        parsing \a ltl_string.
+  /// \return \c true if any diagnostic was output.
+  bool format_kripke_parse_errors(std::ostream& os,
+                                  const std::string& filename,
+                                  kripke_parse_error_list& error_list);
+
+}
+
+
+#endif /* !SPOT_KRIPKEPARSE_PUBLIC_HH_ */