hoa: use the tgba_digraph interface to save automata

* src/tgbaalgos/hoa.cc: Here.
* src/tgbatest/det.test, src/tgbatest/hoaparse.test,
src/tgbatest/monitor.test, doc/org/oaut.org: Adjust.

src/tgbatest/det.test

@@ -1,7 +1,7 @@
 #!/bin/sh
 # -*- coding: utf-8 -*-
-# Copyright (C) 2013, 2014 Laboratoire de Recherche et Développement
-# de l'Epita (LRDE).
+# Copyright (C) 2013, 2014, 2015 Laboratoire de Recherche et
+# Développement de l'Epita (LRDE).
 #
 # This file is part of Spot, a model checking library.
 #
@@ -83,7 +83,7 @@ EOF
 # FIXME: we should improve this output
 cat >ex.hoa <<'EOF'
 HOA: v1
-States: 5
+States: 7
 Start: 0
 AP: 1 "a"
 acc-name: Buchi
@@ -93,21 +93,25 @@ properties: trans-labels explicit-labels state-acc
 State: 0
 [!0] 0
 [0] 1
-[!0] 2
+[!0] 3
 State: 1
 [!0] 0
-[0] 3
-[!0] 2
-State: 2 {0}
-[!0] 2
-State: 3
+[0] 2
+[!0] 3
+State: 2
 [!0] 0
-[0] 3
-[!0] 2
-[0] 4
+[0] 2
+[!0] 3
+[0] 5
+State: 3 {0}
+[!0] 3
 State: 4 {0}
-[!0] 2
-[0] 4
+[!0] 3
+State: 5 {0}
+[!0] 3
+[0] 5
+State: 6 {0}
+[t] 6
 --END--
 EOF
 

src/tgbatest/hoaparse.test

@@ -1,6 +1,6 @@
 #!/bin/sh
 # -*- coding: utf-8 -*-
-# Copyright (C) 2014 Laboratoire de Recherche et Développement de
+# Copyright (C) 2014, 2015 Laboratoire de Recherche et Développement de
 # l'Epita (LRDE).
 #
 # This file is part of Spot, a model checking library.
@@ -271,16 +271,16 @@ Acceptance: 2 Inf(0)&Inf(1)
 properties: trans-labels explicit-labels state-acc complete deterministic
 --BODY--
 State: 0 {0}
-[!0&!1] 1
+[!0&!1] 2
 [0&!1] 0
-[!0&1] 2
-[0&1] 2
-State: 1 {0}
+[!0&1] 1
+[0&1] 1
+State: 1 {1}
 [!0&!1] 1
 [0&!1] 1
 [!0&1] 1
 [0&1] 1
-State: 2 {1}
+State: 2 {0}
 [!0&!1] 2
 [0&!1] 2
 [!0&1] 2
@@ -561,23 +561,23 @@ EOF
 expectok input <<EOF
 HOA: v1
 States: 3
-Start: 0
+Start: 2
 AP: 2 "a" "\"b\""
 acc-name: Buchi
 Acceptance: 1 Inf(0)
 properties: trans-labels explicit-labels state-acc complete
 --BODY--
-State: 0
+State: 0 {0}
 [1] 1
-[!1] 2
-[!0] 1
-[0] 2
+[!1] 0
 State: 1
 [!0] 1
-[0] 2
-State: 2 {0}
+[0] 0
+State: 2
 [1] 1
-[!1] 2
+[!1] 0
+[!0] 1
+[0] 0
 --END--
 HOA: v1
 States: 4

src/tgbatest/monitor.test

@@ -1,7 +1,7 @@
 #!/bin/sh
 # -*- coding: utf-8 -*-
-# Copyright (C) 2014 Laboratoire de Recherche et Développement de
-# l'Epita (LRDE).
+# Copyright (C) 2014, 2015 Laboratoire de Recherche et Développement
+# de l'Epita (LRDE).
 #
 # This file is part of Spot, a model checking library.
 #
@@ -47,16 +47,16 @@ expect ../../bin/ltl2tgba --monitor a --hoa<<EOF
 HOA: v1
 name: "a"
 States: 2
-Start: 0
+Start: 1
 AP: 1 "a"
 acc-name: all
 Acceptance: 0 t
 properties: trans-labels explicit-labels state-acc deterministic
 --BODY--
 State: 0
-[0] 1
+[t] 0
 State: 1
-[t] 1
+[0] 0
 --END--
 EOF