ltldo: preserve generic acceptance

* src/bin/ltldo.cc: Default to generic acceptance.
* src/tests/ltl2dstar.test: Add a test.

src/bin/ltldo.cc

@@ -344,6 +344,7 @@ main(int argc, char** argv)
   // Disable post-processing as much as possible by default.
   level = spot::postprocessor::Low;
   pref = spot::postprocessor::Any;
+  type = spot::postprocessor::Generic;
   if (int err = argp_parse(&ap, argc, argv, ARGP_NO_HELP, 0, 0))
     exit(err);
 

src/tests/ltl2dstar.test

@@ -1,6 +1,6 @@
 #!/bin/sh
 # -*- coding: utf-8 -*-
-# Copyright (C) 2013, 2014 Laboratoire de Recherche et
+# Copyright (C) 2013, 2014, 2015 Laboratoire de Recherche et
 # Développement de l'Epita (LRDE).
 #
 # This file is part of Spot, a model checking library.
@@ -75,3 +75,30 @@ $ltlcross -f 'FGa' --verbose \
 "ltl2dstar $RAB --ltl2nba=spin:$ltl2tgba@-s %L %D" \
 "ltl2dstar $STR --ltl2nba=spin:$ltl2tgba@-s %L %D" 2>err
 test `grep -c 'info: check_empty.*Comp' err` = 1
+
+
+# Make sure ltldo preserve the Rabin acceptance by default
+../../bin/ltldo \
+    "ltl2dstar --ltl2nba=spin:$ltl2tgba@-s --output-format=hoa %L %O" \
+    -f 'GFa -> GFb' -Hi > out.hoa
+cat >expected <<EOF
+HOA: v1
+States: 5
+Start: 3
+AP: 2 "b" "a"
+Acceptance: 4 (Fin(0) & Inf(1)) | (Fin(2) & Inf(3))
+properties: implicit-labels state-acc complete deterministic
+--BODY--
+State: 0 {1 3}
+2 0 4 1
+State: 1 {0 3}
+2 0 4 1
+State: 2 {1}
+2 0 4 1
+State: 3 {0}
+0 0 1 1
+State: 4 {0}
+2 0 4 1
+--END--
+EOF
+diff out.hoa expected