twa_run: add a highlight method
* spot/twaalgos/emptiness.hh, spot/twaalgos/emptiness.cc: Add the method. * tests/python/highlighting.ipynb: Add a small test.
This commit is contained in:
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3 changed files with 389 additions and 6 deletions
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@ -21,6 +21,7 @@
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// along with this program. If not, see <http://www.gnu.org/licenses/>.
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#include <sstream>
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#include <memory>
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#include <spot/twaalgos/emptiness.hh>
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#include <spot/twaalgos/bfssteps.hh>
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#include <spot/twaalgos/gtec/gtec.hh>
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@ -658,6 +659,52 @@ namespace spot
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return true;
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}
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/// Note that this works only if the automaton is a twa_graph_ptr.
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void twa_run::highlight(unsigned color)
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{
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auto a = std::dynamic_pointer_cast<twa_graph>
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(std::const_pointer_cast<twa>(aut));
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if (!a)
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throw std::runtime_error("highlight() only work for twa_graph");
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auto h = new std::map<unsigned, unsigned>; // highlighted edges
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unsigned src = a->get_init_state_number();
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auto l = prefix.empty() ? &cycle : &prefix;
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auto e = l->end();
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for (auto i = l->begin(); i != e;)
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{
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bdd label = i->label;
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acc_cond::mark_t acc = i->acc;
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unsigned dst;
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++i;
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if (i != e)
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{
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dst = a->state_number(i->s);
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}
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else if (l == &prefix)
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{
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l = &cycle;
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i = l->begin();
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e = l->end();
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dst = a->state_number(i->s);
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}
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else
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{
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dst = a->state_number(l->begin()->s);
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}
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for (auto& t: a->out(src))
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if (t.dst == dst && t.cond == label && t.acc == acc)
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{
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(*h)[a->get_graph().index_of_edge(t)] = color;
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break;
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}
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src = dst;
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}
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a->set_named_prop("highlight-edges", h);
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}
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twa_graph_ptr
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twa_run::as_twa() const
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{
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@ -1,5 +1,5 @@
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// -*- coding: utf-8 -*-
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// Copyright (C) 2011, 2013, 2014, 2015 Laboratoire de Recherche et
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// Copyright (C) 2011, 2013, 2014, 2015, 2016 Laboratoire de Recherche et
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// Developpement de l'Epita (LRDE).
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// Copyright (C) 2004, 2005 Laboratoire d'Informatique de Paris 6 (LIP6),
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// département Systèmes Répartis Coopératifs (SRC), Université Pierre
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@ -312,6 +312,11 @@ namespace spot
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/// \return true iff the run could be completed
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bool replay(std::ostream& os, bool debug = false) const;
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/// \brief Highlight the accepting run on the automaton.
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///
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/// Note that this works only if the automaton is a twa_graph_ptr.
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void highlight(unsigned color);
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/// \brief Return a twa_graph_ptr corresponding to \a run
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///
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/// Identical states are merged.
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@ -1,7 +1,23 @@
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"display_name": "Python 3",
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"language": "python",
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"name": "python3"
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},
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"language_info": {
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"name": "ipython",
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"version": 3
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"nbformat": 3,
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"nbformat_minor": 0,
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@ -124,7 +140,7 @@
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"</svg>"
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],
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"text": [
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],
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@ -224,7 +240,7 @@
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"</svg>\n"
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],
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"text": [
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"<spot.impl.twa_graph; proxy of <Swig Object of type 'std::shared_ptr< spot::twa_graph > *' at 0x7f6f600c1690> >"
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"<spot.impl.twa_graph; proxy of <Swig Object of type 'std::shared_ptr< spot::twa_graph > *' at 0x7fd034659540> >"
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]
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}
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],
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@ -326,11 +342,326 @@
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"</svg>\n"
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],
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"text": [
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"<spot.twa; proxy of <Swig Object of type 'std::shared_ptr< spot::twa > *' at 0x7f6f60140b40> >"
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"<spot.twa; proxy of <Swig Object of type 'std::shared_ptr< spot::twa > *' at 0x7fd034190180> >"
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{
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"metadata": {},
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"source": [
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"One use of this highlighting is to highlight a run in an automaton.\n",
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"\n",
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"The following few command generate an automaton, then an accepting run on this automaton, and highlight that accepting run on the automaton. Note that a run knows the automaton from which it was generated, so calling `highlight()` will directly decorate that automaton."
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]
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"<spot.impl.twa_graph; proxy of <Swig Object of type 'std::shared_ptr< spot::twa_graph > *' at 0x7fd034190240> >"
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"input": [
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"r = spot.couvreur99(b).check().accepting_run(); r"
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],
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"metadata": {},
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{
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"text": [
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"Prefix:\n",
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" 0\n",
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" | 1\n",
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" 1\n",
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" | !a & !b\n",
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"Cycle:\n",
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" 2\n",
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" | !b\t{0}"
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]
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}
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],
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{
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"cell_type": "code",
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"collapsed": false,
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"input": [
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"r.highlight(5) # the parameter is a color number"
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],
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"language": "python",
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Loading…
Add table
Add a link
Reference in a new issue