Export tgba_parse() to the python interface.

* src/tgbaparse/public.hh: Hide tgba_parse_errorlist to SWIG.
* wrap/python/spot.i: Export tgba_parse.
* wrap/python/tests/parsetgba.py: New file.
* wrap/python/tests/Makefile.am: Add it.

NEWS

@@ -16,6 +16,8 @@ New in spot 0.9a:
     - Promises generated for formula of the form P(a U (b U c))
       are reduced into P(c), avoiding the introduction of many
       promises that imply each other.
+  * The tgba_parse() function is now available via the Python
+    bindings.
   * Bug fixes:
     - The random SERE generator was using the wrong operators
       for "and" and "or", mistaking And/Or with AndRat/OrRat.

src/tgbaparse/public.hh

-// Copyright (C) 2003, 2004, 2005, 2006, 2009 Laboratoire
-// d'Informatique de Paris 6 (LIP6), département Systèmes Répartis
-// Coopératifs (SRC), Université Pierre et Marie Curie.
+// -*- coding: utf-8 -*-
+// Copyright (C) 2009, 2012 Laboratoire de Recherche et Développement
+// de l'Epita.
+// Copyright (C) 2003, 2004, 2005, 2006 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.
 //
@@ -38,10 +41,15 @@ namespace spot
   /// \addtogroup tgba_io
   /// @{
 
+#ifndef SWIG
   /// \brief A parse diagnostic with its location.
   typedef std::pair<tgbayy::location, std::string> tgba_parse_error;
   /// \brief A list of parser diagnostics, as filled by parse.
   typedef std::list<tgba_parse_error> tgba_parse_error_list;
+#else
+    // Turn parse_error_list into an opaque type for Swig.
+    struct tgba_parse_error_list {};
+#endif
 
   /// \brief Build a spot::tgba_explicit from a text file.
   /// \param filename The name of the file to parse.

wrap/python/spot.i

@@ -107,6 +107,8 @@ namespace std {
 #include "tgbaalgos/stats.hh"
 #include "tgbaalgos/simulation.hh"
 
+#include "tgbaparse/public.hh"
+
 using namespace spot::ltl;
 using namespace spot;
 %}
@@ -191,6 +193,8 @@ using namespace spot;
 %feature("new") spot::tgba::succ_iter;
 %feature("new") spot::tgba_succ_iterator::current_state;
 %feature("new") spot::simulation;
+%feature("new") spot::tgba_parse;
+
 // Help SWIG with namespace lookups.
 #define ltl spot::ltl
 %include "tgba/bdddict.hh"
@@ -215,11 +219,11 @@ using namespace spot;
   spot::explicit_graph<state_explicit_formula, tgba>;
 
 %template(explicit_string_tgba)
-  spot::explicit_graph<state_explicit_string, tgba>;
-%template(explicit_number_tgba)
-  spot::tgba_explicit<state_explicit_formula>;
+  spot::tgba_explicit<state_explicit_string>;
 %template(explicit__number_tgba)
   spot::tgba_explicit<state_explicit_number>;
+%template(explicit_formula_tgba)
+  spot::tgba_explicit<state_explicit_formula>;
 
 %template(explicit_string__tgba)
   spot::explicit_conf<tgba_explicit<state_explicit_string>,
@@ -249,6 +253,9 @@ using namespace spot;
 %include "tgbaalgos/sccfilter.hh"
 %include "tgbaalgos/stats.hh"
 %include "tgbaalgos/simulation.hh"
+
+%include "tgbaparse/public.hh"
+
 #undef ltl
 
 %extend spot::ltl::formula {
@@ -331,6 +338,13 @@ empty_parse_error_list()
   return l;
 }
 
+spot::tgba_parse_error_list
+empty_tgba_parse_error_list()
+{
+  tgba_parse_error_list l;
+  return l;
+}
+
 std::ostream&
 get_cout()
 {
@@ -381,3 +395,13 @@ __nonzero__()
 }
 
 }
+
+%extend spot::tgba_parse_error_list {
+
+bool
+__nonzero__()
+{
+  return !self->empty();
+}
+
+}

wrap/python/tests/Makefile.am

-## Copyright (C) 2010 Labortatoire de Recherche et Développement de
+## Copyright (C) 2010, 2012 Labortatoire de Recherche et Dveloppement de
 ## l'EPITA.
 ## Copyright (C) 2003, 2004, 2005  Laboratoire d'Informatique de Paris 6 (LIP6),
 ## dpartement Systmes Rpartis Coopratifs (SRC), Universit Pierre
@@ -38,4 +38,5 @@ TESTS = \
   minato.py \
   modgray.py \
   optionmap.py \
+  parsetgba.py \
   setxor.py

wrap/python/tests/parsetgba.py

+# -*- mode: python; 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.
+
+import os
+import spot
+
+contents = '''
+acc = "b";
+"a U b", "1", "b", "b";
+"a U b", "a U b", "a & !b",;
+"1", "1", "1", "b";
+'''
+
+filename = 'parsetgba.out'
+
+out = open(filename, 'w+')
+out.write(contents)
+out.close()
+
+d = spot.bdd_dict()
+p = spot.empty_tgba_parse_error_list()
+a = spot.tgba_parse(filename, p, d)
+
+assert not p
+
+spot.dotty_reachable(spot.get_cout(), a)
+
+os.unlink(filename)