Preliminary support for Event-based GBA.

* src/evtgba/Makefile.am, src/evtgba/evtgba.cc,
src/evtgba/evtgba.hh, src/evtgba/evtgbaiter.hh,
src/evtgba/explicit.cc, src/evtgba/explicit.hh,
src/evtgba/product.cc, src/evtgba/product.hh,
src/evtgba/symbol.cc, src/evtgba/symbol.hh,
src/evtgbaalgos/Makefile.am, src/evtgbaalgos/dotty.cc,
src/evtgbaalgos/dotty.hh, src/evtgbaalgos/reachiter.cc,
src/evtgbaalgos/reachiter.hh, src/evtgbaalgos/save.cc,
src/evtgbaalgos/save.hh, src/evtgbaparse/Makefile.am,
src/evtgbaparse/evtgbaparse.yy, src/evtgbaparse/evtgbascan.ll,
src/evtgbaparse/fmterror.cc, src/evtgbaparse/parsedecl.hh,
src/evtgbaparse/public.hh, src/evtgbatest/Makefile.am,
src/evtgbatest/defs.in, src/evtgbatest/explicit.cc,
src/evtgbatest/explicit.test, src/evtgbatest/product.cc,
src/evtgbatest/product.test, src/evtgbatest/readsave.cc,
src/evtgbatest/readsave.test: New files.
* configure.ac: Create the Makefiles in these new subdirectories.
* src/Makefile.am: Recurse them.

src/evtgbaparse/public.hh

@@ -0,0 +1,68 @@
+// Copyright (C) 2003, 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_EVTGBAPARSE_PUBLIC_HH
+# define SPOT_EVTGBAPARSE_PUBLIC_HH
+
+# include "evtgba/explicit.hh"
+# include "ltlparse/location.hh"
+# include <string>
+# include <list>
+# include <utility>
+# include <iosfwd>
+
+namespace spot
+{
+  /// \brief A parse diagnostic with its location.
+  typedef std::pair<yy::Location, std::string> evtgba_parse_error;
+  /// \brief A list of parser diagnostics, as filled by parse.
+  typedef std::list<evtgba_parse_error> evtgba_parse_error_list;
+
+  /// \brief Build a spot::evtgba_explicit from a text file.
+  /// \param filename The name of the file to parse.
+  /// \param error_list A list that will be filled with
+  ///        parse errors that occured during parsing.
+  /// \param dict The BDD dictionary where to use.
+  /// \param env The environment into which parsing should take place.
+  /// \param debug When true, causes the parser to trace its execution.
+  /// \return A pointer to the evtgba built from \a filename, or
+  ///        0 if the file could not be opened.
+  ///
+  /// Note that the parser usually tries to recover from errors.  It can
+  /// return an non zero value even if it encountered error during the
+  /// parsing of \a filename.  If you want to make sure \a filename
+  /// was parsed succesfully, check \a error_list for emptiness.
+  ///
+  /// \warning This function is not reentrant.
+  evtgba_explicit* evtgba_parse(const std::string& filename,
+				evtgba_parse_error_list& error_list,
+				bool debug = false);
+
+  /// \brief Format diagnostics produced by spot::evtgba_parse.
+  /// \param os Where diagnostics should be output.
+  /// \param error_list The error list filled by spot::ltl::parse while
+  ///        parsing \a ltl_string.
+  /// \return \c true iff any diagnostic was output.
+  bool format_evtgba_parse_errors(std::ostream& os,
+				  evtgba_parse_error_list& error_list);
+}
+
+#endif // SPOT_EVTGBAPARSE_PUBLIC_HH