rename src/tgbaalgos/ as src/twaalgos/

Automatic mass renaming.

* src/tgbaalgos/: Rename as...
* src/twaalgos/: ... this.
* README, configure.ac, iface/ltsmin/modelcheck.cc, src/Makefile.am,
src/bin/autfilt.cc, src/bin/common_aoutput.cc,
src/bin/common_aoutput.hh, src/bin/common_output.hh,
src/bin/common_post.hh, src/bin/dstar2tgba.cc, src/bin/ltl2tgba.cc,
src/bin/ltl2tgta.cc, src/bin/ltlcross.cc, src/bin/ltldo.cc,
src/bin/ltlfilt.cc, src/bin/randaut.cc, src/dstarparse/dra2ba.cc,
src/dstarparse/nra2nba.cc, src/dstarparse/nsa2tgba.cc,
src/graphtest/twagraph.cc, src/kripke/kripkeprint.cc,
src/ltlvisit/contain.cc, src/ltlvisit/contain.hh,
src/ltlvisit/exclusive.cc, src/taalgos/emptinessta.hh,
src/tgbatest/checkpsl.cc, src/tgbatest/checkta.cc,
src/tgbatest/complementation.cc, src/tgbatest/emptchk.cc,
src/tgbatest/ltl2tgba.cc, src/tgbatest/ltlprod.cc,
src/tgbatest/randtgba.cc, src/tgbatest/taatgba.cc, src/twa/twa.cc,
src/twa/twagraph.hh, src/twa/twasafracomplement.cc,
wrap/python/spot_impl.i: Adjust.

src/twaalgos/postproc.hh

@@ -0,0 +1,130 @@
+// -*- coding: utf-8 -*-
+// Copyright (C) 2012, 2013, 2014, 2015 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 3 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 this program.  If not, see <http://www.gnu.org/licenses/>.
+
+#pragma once
+
+#include "twa/twagraph.hh"
+
+namespace spot
+{
+  class option_map;
+
+  /// \addtogroup twa_reduction
+  /// @{
+
+  /// \brief Wrap TGBA/BA/Monitor post-processing algorithms in an
+  /// easy interface.
+  ///
+  /// This class is a shell around scc_filter(),
+  /// minimize_obligation(), simulation(), iterated_simulations(), and
+  /// degeneralize().  These different algorithms will be combined
+  /// depending on the various options set with set_type(),
+  /// set_pref(), and set_level().
+  ///
+  /// This helps hiding some of the logic required to combine these
+  /// simplifications efficiently (e.g., there is no point calling
+  /// degeneralize() or any simulation when minimize_obligation()
+  /// succeeded.)
+  ///
+  /// Use set_pref() method to specify whether you favor
+  /// deterministic automata or small automata.  If you don't care,
+  /// less post processing will be done.
+  ///
+  /// The set_level() method lets you set the optimization level.
+  /// A higher level enables more costly post-processings.  For instance
+  /// pref=Small,level=High will try two different post-processings
+  /// (one with minimize_obligation(), and one with
+  /// iterated_simulations()) an keep the smallest result.
+  /// pref=Small,level=Medium will only try the iterated_simulations()
+  /// when minimized_obligation failed to produce an automaton smaller
+  /// than its input.  pref=Small,level=Low will only run
+  /// simulation().
+  class SPOT_API postprocessor
+  {
+  public:
+    /// \brief Construct a postprocessor.
+    ///
+    /// The \a opt argument can be used to pass extra fine-tuning
+    /// options used for debugging or benchmarking.
+    postprocessor(const option_map* opt = 0);
+
+    enum output_type { TGBA, BA, Monitor, Generic };
+    void
+    set_type(output_type type)
+    {
+      type_ = type;
+    }
+
+    enum
+    {
+      Any = 0,
+      Small = 1,
+      Deterministic = 2,
+      // 3 reserved for unambiguous
+      // Combine Complete as 'Small | Complete' or 'Deterministic | Complete'
+      Complete = 4
+    };
+    typedef int output_pref;
+
+    void
+    set_pref(output_pref pref)
+    {
+      pref_ = pref;
+    }
+
+    enum optimization_level { Low, Medium, High };
+    void
+    set_level(optimization_level level)
+    {
+      level_ = level;
+    }
+
+    /// \brief Optimize an automaton.
+    ///
+    /// The returned automaton might be a new automaton,
+    /// or an in-place modification of the \a input automaton.
+    twa_graph_ptr run(twa_graph_ptr input,
+			 const ltl::formula* f);
+
+  protected:
+    twa_graph_ptr do_simul(const twa_graph_ptr& input, int opt);
+    twa_graph_ptr do_ba_simul(const twa_graph_ptr& input, int opt);
+    twa_graph_ptr do_degen(const twa_graph_ptr& input);
+
+    output_type type_;
+    int pref_;
+    optimization_level level_;
+    // Fine-tuning options fetched from the option_map.
+    bool degen_reset_;
+    bool degen_order_;
+    int degen_cache_;
+    bool degen_lskip_;
+    bool degen_lowinit_;
+    int simul_;
+    int scc_filter_;
+    int ba_simul_;
+    bool tba_determinisation_;
+    int sat_minimize_;
+    int sat_acc_;
+    int sat_states_;
+    bool state_based_;
+    bool wdba_minimize_;
+  };
+  /// @}
+}