23c2cbf46a
* python/spot/impl.i (highlight_state, highlight_edge): New function. * python/spot/__init__.py (highlight_states, highlight_edges): New functions. * spot/twaalgos/dot.cc: Add a '#' option. * spot/taalgos/dot.cc: Ignore '#'. * tests/python/highlighting.ipynb: New file to illustrate everything. * tests/Makefile.am, doc/org/tut.org: Add it.
712 lines
17 KiB
C++
712 lines
17 KiB
C++
// -*- coding: utf-8 -*-
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// Copyright (C) 2011, 2012, 2014, 2015, 2016 Laboratoire de Recherche
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// et Developpement de l'Epita (LRDE).
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// Copyright (C) 2003, 2004 Laboratoire d'Informatique de Paris 6 (LIP6),
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// département Systèmes Répartis Coopératifs (SRC), Université Pierre
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// et Marie Curie.
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//
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// This file is part of Spot, a model checking library.
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//
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// Spot is free software; you can redistribute it and/or modify it
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// under the terms of the GNU General Public License as published by
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// the Free Software Foundation; either version 3 of the License, or
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// (at your option) any later version.
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//
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// Spot is distributed in the hope that it will be useful, but WITHOUT
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// ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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// or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public
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// License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with this program. If not, see <http://www.gnu.org/licenses/>.
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#include <ostream>
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#include <stdexcept>
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#include <spot/twa/twagraph.hh>
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#include <spot/twaalgos/dot.hh>
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#include <spot/twa/bddprint.hh>
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#include <spot/twaalgos/reachiter.hh>
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#include <spot/misc/escape.hh>
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#include <spot/twa/twagraph.hh>
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#include <spot/twa/formula2bdd.hh>
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#include <spot/twaalgos/copy.hh>
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#include <spot/twaalgos/sccinfo.hh>
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#include <spot/kripke/fairkripke.hh>
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#include <cstdlib>
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#include <cstring>
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#include <algorithm>
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#include <ctype.h>
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namespace spot
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{
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namespace
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{
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constexpr int MAX_BULLET = 20;
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class dotty_output
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{
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std::ostream& os_;
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bool opt_force_acc_trans_ = false;
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bool opt_horizontal_ = true;
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bool opt_name_ = false;
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enum { ShapeAuto = 0, ShapeCircle, ShapeEllipse }
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opt_shape_ = ShapeAuto;
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bool opt_show_acc_ = false;
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bool mark_states_ = false;
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bool opt_scc_ = false;
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bool opt_html_labels_ = false;
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bool opt_state_labels_ = false;
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const_twa_graph_ptr aut_;
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std::vector<std::string>* sn_ = nullptr;
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std::map<unsigned, unsigned>* highlight_edges_ = nullptr;
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std::map<unsigned, unsigned>* highlight_states_ = nullptr;
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std::vector<std::pair<unsigned, unsigned>>* sprod_ = nullptr;
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std::set<unsigned>* incomplete_;
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std::string* name_ = nullptr;
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acc_cond::mark_t inf_sets_ = 0U;
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acc_cond::mark_t fin_sets_ = 0U;
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bool opt_rainbow = false;
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bool opt_bullet = false;
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bool opt_bullet_but_buchi = false;
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bool opt_all_bullets = false;
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bool opt_ordered_edges_ = false;
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bool opt_numbered_edges_ = false;
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bool opt_want_state_names_ = true;
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unsigned opt_shift_sets_ = 0;
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std::string opt_font_;
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const char* const palette9[9] =
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{
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"#5DA5DA", /* blue */
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"#F17CB0", /* pink */
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"#FAA43A", /* orange */
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"#B276B2", /* purple */
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"#60BD68", /* green */
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"#F15854", /* red */
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"#B2912F", /* brown */
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"#4D4D4D", /* gray */
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"#DECF3F", /* yellow */
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};
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const char*const* palette = palette9;
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int palette_mod = 9;
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unsigned max_states_ = -1U;
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bool max_states_given_ = false;
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public:
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unsigned max_states()
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{
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return max_states_;
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}
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bool max_states_given()
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{
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return max_states_given_;
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}
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void
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parse_opts(const char* options)
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{
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const char* orig = options;
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while (char c = *options++)
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switch (c)
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{
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case '.':
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{
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// Copy the value in a string, so future calls to
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// parse_opts do not fail if the environment has
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// changed. (This matters particularly in an ipython
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// notebook, where it is tempting to redefine
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// SPOT_DOTDEFAULT.)
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static std::string def = []()
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{
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auto s = getenv("SPOT_DOTDEFAULT");
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return s ? s : "";
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}();
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// Prevent infinite recursions...
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if (orig == def.c_str())
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throw std::runtime_error
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(std::string("SPOT_DOTDEFAULT should not contain '.'"));
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if (!def.empty())
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parse_opts(def.c_str());
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break;
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}
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case '+':
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{
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char* end;
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opt_shift_sets_ = strtoul(options, &end, 10);
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if (options == end)
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throw std::runtime_error
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("missing number after '+' in print_dot() options");
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options = end;
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break;
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}
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case '<':
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{
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char* end;
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max_states_ = strtoul(options, &end, 10);
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if (options == end)
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throw std::runtime_error
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("missing number after '<' in print_dot() options");
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if (max_states_ == 0)
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{
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max_states_ = -1U;
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max_states_given_ = false;
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}
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else
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{
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max_states_given_ = true;
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}
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options = end;
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break;
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}
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case '#':
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opt_numbered_edges_ = true;
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break;
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case '1':
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opt_want_state_names_ = false;
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break;
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case 'a':
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opt_show_acc_ = true;
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break;
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case 'b':
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opt_bullet = true;
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opt_bullet_but_buchi = false;
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break;
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case 'B':
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opt_bullet = true;
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opt_bullet_but_buchi = true;
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break;
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case 'c':
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opt_shape_ = ShapeCircle;
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break;
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case 'e':
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opt_shape_ = ShapeEllipse;
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break;
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case 'f':
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if (*options != '(')
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throw std::runtime_error
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(std::string("invalid font specification for dotty()"));
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{
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auto* end = strchr(++options, ')');
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if (!end)
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throw std::runtime_error
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(std::string("invalid font specification for dotty()"));
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opt_font_ = std::string(options, end - options);
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options = end + 1;
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}
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break;
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case 'h':
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opt_horizontal_ = true;
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break;
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case 'k':
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opt_state_labels_ = true;
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break;
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case 'n':
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opt_name_ = true;
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break;
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case 'N':
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opt_name_ = false;
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break;
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case 'o':
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opt_ordered_edges_ = true;
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break;
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case 'r':
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opt_html_labels_ = true;
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opt_rainbow = true;
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break;
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case 'R':
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opt_html_labels_ = true;
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opt_rainbow = false;
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break;
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case 's':
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opt_scc_ = true;
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break;
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case 'v':
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opt_horizontal_ = false;
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break;
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case 't':
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opt_force_acc_trans_ = true;
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break;
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default:
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throw std::runtime_error
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(std::string("unknown option for print_dot(): ") + c);
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}
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}
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dotty_output(std::ostream& os, const char* options)
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: os_(os)
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{
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parse_opts(options ? options : ".");
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}
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void
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output_set(std::ostream& os, int v) const
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{
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v += opt_shift_sets_;
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if (opt_bullet && (v >= 0) & (v <= MAX_BULLET))
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{
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static const char* const tab[MAX_BULLET + 1] = {
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"⓿", "❶", "❷", "❸",
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"❹", "❺", "❻", "❼",
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"❽", "❾", "❿", "⓫",
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"⓬", "⓭", "⓮", "⓯",
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"⓰", "⓱", "⓲", "⓳",
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"⓴",
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};
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os << tab[v];
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}
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else
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{
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os << v;
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}
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}
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void
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output_set(acc_cond::mark_t a) const
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{
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if (!opt_all_bullets)
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os_ << '{';
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const char* space = "";
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for (auto v: a.sets())
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{
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if (!opt_all_bullets)
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os_ << space;
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output_set(os_, v);
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space = ",";
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}
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if (!opt_all_bullets)
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os_ << '}';
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}
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const char*
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html_set_color(int v) const
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{
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if (opt_rainbow)
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return palette[(v + opt_shift_sets_) % palette_mod];
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// Color according to Fin/Inf
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if (inf_sets_.has(v))
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{
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if (fin_sets_.has(v))
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return palette[2];
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else
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return palette[0];
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}
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else
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{
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return palette[1];
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}
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}
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void
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output_html_set_aux(std::ostream& os, int v) const
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{
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os << "<font color=\"" << html_set_color(v) << "\">";
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output_set(os, v);
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os << "</font>";
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}
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void
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output_html_set(int v) const
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{
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output_html_set_aux(os_, v);
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}
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void
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output_html_set(acc_cond::mark_t a) const
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{
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if (!opt_all_bullets)
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os_ << '{';
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const char* space = "";
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for (auto v: a.sets())
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{
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if (!opt_all_bullets)
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os_ << space;
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output_html_set(v);
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space = ",";
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}
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if (!opt_all_bullets)
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os_ << '}';
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}
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std::string
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state_label(unsigned s) const
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{
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bdd label = bddfalse;
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for (auto& t: aut_->out(s))
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{
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label = t.cond;
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break;
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}
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if (label == bddfalse
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&& incomplete_ && incomplete_->find(s) != incomplete_->end())
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return "...";
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return bdd_format_formula(aut_->get_dict(), label);
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}
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void
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start()
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{
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if (opt_html_labels_)
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std::tie(inf_sets_, fin_sets_) =
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aut_->get_acceptance().used_inf_fin_sets();
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if (opt_bullet && aut_->num_sets() <= MAX_BULLET)
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opt_all_bullets = true;
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os_ << "digraph G {\n";
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if (opt_horizontal_)
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os_ << " rankdir=LR\n";
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if (name_ || opt_show_acc_)
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{
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if (!opt_html_labels_)
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{
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os_ << " label=\"";
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if (name_)
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{
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escape_str(os_, *name_);
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if (opt_show_acc_)
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os_ << "\\n";
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}
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if (opt_show_acc_)
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aut_->get_acceptance().to_text
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(os_, [this](std::ostream& os, int v)
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{
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this->output_set(os, v);
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});
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os_ << "\"\n";
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}
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else
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{
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os_ << " label=<";
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if (name_)
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{
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escape_html(os_, *name_);
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if (opt_show_acc_)
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os_ << "<br/>";
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}
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if (opt_show_acc_)
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aut_->get_acceptance().to_html
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(os_, [this](std::ostream& os, int v)
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{
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this->output_html_set_aux(os, v);
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});
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os_ << ">\n";
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}
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os_ << " labelloc=\"t\"\n";
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}
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switch (opt_shape_)
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{
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case ShapeCircle:
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os_ << " node [shape=\"circle\"]\n";
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break;
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case ShapeEllipse:
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// Do not print anything. Ellipse is
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// the default shape used by GraphViz.
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break;
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case ShapeAuto:
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SPOT_UNREACHABLE();
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}
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if (!opt_font_.empty())
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os_ << " fontname=\"" << opt_font_
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<< "\"\n node [fontname=\"" << opt_font_
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<< "\"]\n edge [fontname=\"" << opt_font_
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<< "\"]\n";
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// Always copy the environment variable into a static string,
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// so that we (1) look it up once, but (2) won't crash if the
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// environment is changed.
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static std::string extra = []()
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{
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auto s = getenv("SPOT_DOTEXTRA");
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return s ? s : "";
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}();
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// Any extra text passed in the SPOT_DOTEXTRA environment
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// variable should be output at the end of the "header", so
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// that our setup can be overridden.
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if (!extra.empty())
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os_ << " " << extra << '\n';
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os_ << " I [label=\"\", style=invis, ";
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os_ << (opt_horizontal_ ? "width" : "height");
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os_ << "=0]\n I -> " << aut_->get_init_state_number() << '\n';
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}
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void
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end()
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{
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os_ << '}' << std::endl;
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}
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void
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process_state(unsigned s)
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{
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if (mark_states_ &&
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((opt_bullet && !opt_bullet_but_buchi)
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|| aut_->num_sets() != 1))
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{
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acc_cond::mark_t acc = 0U;
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for (auto& t: aut_->out(s))
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{
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acc = t.acc;
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break;
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}
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bool has_name = sn_ && s < sn_->size() && !(*sn_)[s].empty();
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os_ << " " << s << " [label=";
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if (!opt_html_labels_)
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{
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os_ << '"';
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if (has_name)
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escape_str(os_, (*sn_)[s]);
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else if (sprod_)
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os_ << (*sprod_)[s].first << ',' << (*sprod_)[s].second;
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else
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os_ << s;
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if (acc)
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{
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os_ << "\\n";
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output_set(acc);
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}
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if (opt_state_labels_)
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escape_str(os_ << "\\n", state_label(s));
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os_ << '"';
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}
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else
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{
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os_ << '<';
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if (has_name)
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escape_html(os_, (*sn_)[s]);
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else if (sprod_)
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os_ << (*sprod_)[s].first << ',' << (*sprod_)[s].second;
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else
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os_ << s;
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if (acc)
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{
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os_ << "<br/>";
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output_html_set(acc);
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}
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if (opt_state_labels_)
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escape_html(os_ << "<br/>", state_label(s));
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os_ << '>';
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}
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}
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else
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{
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os_ << " " << s << " [label=\"";
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if (sn_ && s < sn_->size() && !(*sn_)[s].empty())
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escape_str(os_, (*sn_)[s]);
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else if (sprod_)
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os_ << (*sprod_)[s].first << ',' << (*sprod_)[s].second;
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else
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os_ << s;
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if (opt_state_labels_)
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escape_str(os_ << "\\n", state_label(s));
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os_ << '"';
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// Use state_acc_sets(), not state_is_accepting() because
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// on co-Büchi automata we want to mark the rejecting
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// states.
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if (mark_states_ && aut_->state_acc_sets(s))
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os_ << ", peripheries=2";
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}
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if (highlight_states_)
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{
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auto iter = highlight_states_->find(s);
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if (iter != highlight_states_->end())
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os_ << ", style=bold, color=\""
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<< palette[iter->second % palette_mod]
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<< '"';
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}
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os_ << "]\n";
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if (incomplete_ && incomplete_->find(s) != incomplete_->end())
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os_ << " u" << s << " [label=\"...\", shape=none, width=0, height=0"
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"]\n " << s << " -> u" << s << " [style=dashed]\n";
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}
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void
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process_link(const twa_graph::edge_storage_t& t, int number)
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{
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os_ << " " << t.src << " -> " << t.dst;
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std::string label;
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if (!opt_state_labels_)
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label = bdd_format_formula(aut_->get_dict(), t.cond);
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if (!opt_html_labels_)
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{
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os_ << " [label=\"";
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escape_str(os_, label);
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if (!mark_states_)
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if (auto a = t.acc)
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{
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if (!opt_state_labels_)
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os_ << "\\n";
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output_set(a);
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}
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os_ << '"';
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}
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else
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{
|
|
os_ << " [label=<";
|
|
escape_html(os_, label);
|
|
if (!mark_states_)
|
|
if (auto a = t.acc)
|
|
{
|
|
if (!opt_state_labels_)
|
|
os_ << "<br/>";
|
|
output_html_set(a);
|
|
}
|
|
os_ << '>';
|
|
}
|
|
if (opt_ordered_edges_ || opt_numbered_edges_)
|
|
{
|
|
os_ << ", taillabel=\"";
|
|
if (opt_ordered_edges_)
|
|
os_ << number;
|
|
if (opt_ordered_edges_ && opt_numbered_edges_)
|
|
os_ << ' ';
|
|
if (opt_numbered_edges_)
|
|
os_ << '#' << aut_->get_graph().index_of_edge(t);
|
|
os_ << '"';
|
|
}
|
|
if (highlight_edges_)
|
|
{
|
|
auto idx = aut_->get_graph().index_of_edge(t);
|
|
auto iter = highlight_edges_->find(idx);
|
|
if (iter != highlight_edges_->end())
|
|
os_ << ", style=bold, color=\""
|
|
<< palette[iter->second % palette_mod]
|
|
<< '"';
|
|
}
|
|
os_ << "]\n";
|
|
}
|
|
|
|
void print(const const_twa_graph_ptr& aut)
|
|
{
|
|
aut_ = aut;
|
|
if (opt_want_state_names_)
|
|
{
|
|
sn_ = aut->get_named_prop<std::vector<std::string>>("state-names");
|
|
// We have no names. Do we have product sources?
|
|
if (!sn_)
|
|
{
|
|
sprod_ = aut->get_named_prop
|
|
<std::vector<std::pair<unsigned, unsigned>>>
|
|
("product-states");
|
|
if (sprod_ && aut->num_states() != sprod_->size())
|
|
sprod_ = nullptr;
|
|
}
|
|
}
|
|
if (opt_state_labels_)
|
|
{
|
|
// Verify that we can use state labels for this automaton.
|
|
unsigned n = aut->num_states();
|
|
for (unsigned s = 0; s < n; ++s)
|
|
{
|
|
bool first = true;
|
|
bdd cond = bddfalse;
|
|
for (auto& t: aut->out(s))
|
|
if (first)
|
|
{
|
|
cond = t.cond;
|
|
first = false;
|
|
}
|
|
else if (t.cond != cond)
|
|
{
|
|
opt_state_labels_ = false;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
highlight_edges_ =
|
|
aut->get_named_prop<std::map<unsigned, unsigned>>("highlight-edges");
|
|
highlight_states_ =
|
|
aut->get_named_prop<std::map<unsigned, unsigned>>("highlight-states");
|
|
incomplete_ =
|
|
aut->get_named_prop<std::set<unsigned>>("incomplete-states");
|
|
if (opt_name_)
|
|
name_ = aut_->get_named_prop<std::string>("automaton-name");
|
|
mark_states_ = (!opt_force_acc_trans_
|
|
&& aut_->prop_state_acc().is_true());
|
|
if (opt_shape_ == ShapeAuto)
|
|
{
|
|
if (sn_ || sprod_ || aut->num_states() > 100 || opt_state_labels_)
|
|
{
|
|
opt_shape_ = ShapeEllipse;
|
|
// If all state names are short, prefer circles.
|
|
if (!opt_state_labels_ &&
|
|
sn_ && std::all_of(sn_->begin(), sn_->end(),
|
|
[](const std::string& s)
|
|
{ return s.size() <= 2; }))
|
|
opt_shape_ = ShapeCircle;
|
|
}
|
|
else
|
|
{
|
|
opt_shape_ = ShapeCircle;
|
|
}
|
|
}
|
|
auto si =
|
|
std::unique_ptr<scc_info>(opt_scc_ ? new scc_info(aut) : nullptr);
|
|
|
|
start();
|
|
if (si)
|
|
{
|
|
si->determine_unknown_acceptance();
|
|
|
|
unsigned sccs = si->scc_count();
|
|
for (unsigned i = 0; i < sccs; ++i)
|
|
{
|
|
os_ << " subgraph cluster_" << i << " {\n";
|
|
|
|
// Color the SCC to indicate whether is it accepting.
|
|
if (!si->is_useful_scc(i))
|
|
os_ << " color=grey\n";
|
|
else if (si->is_trivial(i))
|
|
os_ << " color=black\n";
|
|
else if (si->is_accepting_scc(i))
|
|
os_ << " color=green\n";
|
|
else if (si->is_rejecting_scc(i))
|
|
os_ << " color=red\n";
|
|
else
|
|
// May only occur if the call to
|
|
// determine_unknown_acceptance() above is removed.
|
|
os_ << " color=orange\n";
|
|
|
|
if (name_ || opt_show_acc_)
|
|
{
|
|
// Reset the label, otherwise the graph label would
|
|
// be inherited by the cluster.
|
|
os_ << " label=\"\"\n";
|
|
}
|
|
for (auto s: si->states_of(i))
|
|
process_state(s);
|
|
os_ << " }\n";
|
|
}
|
|
}
|
|
unsigned ns = aut_->num_states();
|
|
for (unsigned n = 0; n < ns; ++n)
|
|
{
|
|
if (!si || !si->reachable_state(n))
|
|
process_state(n);
|
|
int trans_num = 0;
|
|
for (auto& t: aut_->out(n))
|
|
process_link(t, trans_num++);
|
|
}
|
|
end();
|
|
}
|
|
};
|
|
} // anonymous namespace
|
|
|
|
std::ostream&
|
|
print_dot(std::ostream& os, const const_twa_ptr& g,
|
|
const char* options)
|
|
{
|
|
dotty_output d(os, options);
|
|
// Enable automatic state labels for Kripke structure.
|
|
if (std::dynamic_pointer_cast<const fair_kripke>(g))
|
|
d.parse_opts("k");
|
|
auto aut = std::dynamic_pointer_cast<const twa_graph>(g);
|
|
if (!aut || (d.max_states_given() && aut->num_states() >= d.max_states()))
|
|
aut = copy(g, twa::prop_set::all(), true, d.max_states() - 1);
|
|
d.print(aut);
|
|
return os;
|
|
}
|
|
|
|
|
|
}
|