From 58d9a12495697b9ce7edd7de6273fd3483e8b2b3 Mon Sep 17 00:00:00 2001
From: Alexandre Duret-Lutz <adl@lrde.epita.fr>
Date: Fri, 4 May 2018 15:27:51 +0200
Subject: [PATCH] python: introduce spot.jupyter.display_inline()

* python/spot/jupyter.py: New file.
* python/Makefile.am: Add it.
* tests/python/product.ipynb: Use it.
* NEWS: Mention it.
---
 NEWS                       |    5 +
 python/Makefile.am         |    3 +-
 python/spot/jupyter.py     |   51 +
 tests/python/product.ipynb | 2065 +++++++++++++++++++-----------------
 4 files changed, 1131 insertions(+), 993 deletions(-)
 create mode 100644 python/spot/jupyter.py

diff --git a/NEWS b/NEWS
index 27b15d026..aba708710 100644
--- a/NEWS
+++ b/NEWS
@@ -60,6 +60,11 @@ New in spot 2.5.3.dev  (not yet released)
     options; there are demonstrated on the new
     https://spot.lrde.epita.fr/ipynb/satmin.html page.
 
+  Python:
+
+  - New spot.jupyter package.  This currently contains a function for
+    displaying several argument side by side in a Jupyter notebook.
+
   Bugs fixed:
 
   - print_dot() will correctly escape strings containing \n in HTML
diff --git a/python/Makefile.am b/python/Makefile.am
index 234701e9b..afd174655 100644
--- a/python/Makefile.am
+++ b/python/Makefile.am
@@ -1,5 +1,5 @@
 ## -*- coding: utf-8 -*-
-## Copyright (C) 2010, 2011, 2013-2017 Laboratoire de Recherche
+## Copyright (C) 2010, 2011, 2013-2018 Laboratoire de Recherche
 ## et Development de l'Epita (LRDE).
 ## Copyright (C) 2003, 2004  Laboratoire d'Informatique de Paris 6 (LIP6),
 ## département Systèmes Répartis Coopératifs (SRC), Université Pierre
@@ -41,6 +41,7 @@ nobase_python_PYTHON = \
   spot/impl.py \
   spot/ltsmin.py \
   spot/gen.py \
+  spot/jupyter.py \
   buddy.py
 nobase_pyexec_LTLIBRARIES = _buddy.la spot/_impl.la \
   spot/_ltsmin.la spot/_gen.la
diff --git a/python/spot/jupyter.py b/python/spot/jupyter.py
new file mode 100644
index 000000000..0c4dc5a76
--- /dev/null
+++ b/python/spot/jupyter.py
@@ -0,0 +1,51 @@
+# -*- coding: utf-8 -*-
+# Copyright (C) 2018 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/>.
+
+"""
+Auxiliary functions for Spot's Python bindings.
+"""
+
+from IPython.display import display, HTML
+
+def display_inline(*args, per_row=None):
+    """
+    This is a wrapper around IPython's `display()` to display multiple
+    elements in a row, without forced line break between them.
+
+    If the `per_row` argument is given, at most `per_row` arguments are
+    displayed on each row, each one taking 1/per_row of the line width.
+    """
+    width = res = ''
+    if per_row:
+        width = 'width:{}%;'.format(100//per_row)
+    for arg in args:
+        dpy = 'inline-block'
+        if hasattr(arg, '_repr_svg_'):
+            rep = arg._repr_svg_()
+        elif hasattr(arg, '_repr_html_'):
+            rep = arg._repr_html_()
+        elif hasattr(arg, '_repr_latex_'):
+            rep = arg._repr_latex_()
+            if not per_row:
+                dpy = 'inline'
+        else:
+            rep = str(arg)
+        res += ("<div style='vertical-align:text-top;display:{};{}'>{}</div>"
+                    .format(dpy, width, rep))
+    display(HTML(res))
diff --git a/tests/python/product.ipynb b/tests/python/product.ipynb
index bd23df504..cfdd6e714 100644
--- a/tests/python/product.ipynb
+++ b/tests/python/product.ipynb
@@ -8,15 +8,9 @@
    "source": [
     "from IPython.display import display, HTML\n",
     "import spot\n",
+    "from spot.jupyter import display_inline # display multiple arguments side-by-side\n",
     "import buddy\n",
-    "spot.setup(show_default='.tavb')\n",
-    "\n",
-    "def horiz(*args):\n",
-    "    \"\"\"Display multiple arguments side by side in a table.\"\"\"\n",
-    "    s = '<table><tr>'\n",
-    "    for arg in args:\n",
-    "        s += '<td style=\\\"vertical-align: top;\\\">' + arg.data + '</td>'\n",
-    "    return HTML(s + '</tr></table>')"
+    "spot.setup(show_default='.tvb')"
    ]
   },
   {
@@ -39,370 +33,393 @@
     {
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-       "<text fill=\"#000000\" font-family=\"Lato\" font-size=\"14.00\" text-anchor=\"start\" x=\"22.5\" y=\"-270.8\">[Büchi]</text>\n",
+       "<div style='vertical-align:text-top;display:inline-block;'><?xml version=\"1.0\" encoding=\"UTF-8\" standalone=\"no\"?>\n",
+       "<!DOCTYPE svg PUBLIC \"-//W3C//DTD SVG 1.1//EN\"\n",
+       " \"http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd\">\n",
+       "<!-- Generated by graphviz version 2.40.1 (20161225.0304)\n",
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+       "<!-- Pages: 1 -->\n",
+       "<svg width=\"99pt\" height=\"307pt\"\n",
+       " viewBox=\"0.00 0.00 99.00 307.00\" xmlns=\"http://www.w3.org/2000/svg\" xmlns:xlink=\"http://www.w3.org/1999/xlink\">\n",
+       "<g id=\"graph0\" class=\"graph\" transform=\"scale(1 1) rotate(0) translate(4 303)\">\n",
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+       "<text text-anchor=\"start\" x=\"24.5\" y=\"-284.8\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#000000\">Inf(</text>\n",
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+       "<text text-anchor=\"start\" x=\"62.5\" y=\"-284.8\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#000000\">)</text>\n",
+       "<text text-anchor=\"start\" x=\"22.5\" y=\"-270.8\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#000000\">[Büchi]</text>\n",
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        "<!-- 1 -->\n",
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+       "<g id=\"edge1\" class=\"edge\">\n",
+       "<title>I&#45;&gt;1</title>\n",
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+       "<g id=\"edge2\" class=\"edge\">\n",
+       "<title>0&#45;&gt;0</title>\n",
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+       "<g id=\"edge3\" class=\"edge\">\n",
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-       "<text fill=\"#000000\" font-family=\"Lato\" font-size=\"14.00\" text-anchor=\"start\" x=\"56.0096\" y=\"-183.8\">[gen. Büchi 2]</text>\n",
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+       "<g id=\"edge12\" class=\"edge\">\n",
+       "<title>3&#45;&gt;3</title>\n",
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        "<!-- 3&#45;&gt;3 -->\n",
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-       "<title>3-&gt;3</title>\n",
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+       "<g id=\"edge13\" class=\"edge\">\n",
+       "<title>3&#45;&gt;3</title>\n",
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+       "<text text-anchor=\"start\" x=\"175.2829\" y=\"-7.8\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#1f78b4\">⓿</text>\n",
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-       "<text fill=\"#1f78b4\" font-family=\"Lato\" font-size=\"14.00\" text-anchor=\"start\" x=\"42.7829\" y=\"-57.8\">⓿</text>\n",
+       "<g id=\"edge14\" class=\"edge\">\n",
+       "<title>3&#45;&gt;4</title>\n",
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+       "<text text-anchor=\"start\" x=\"30.2829\" y=\"-72.8\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#000000\">!b &amp; !c</text>\n",
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+       "<g id=\"edge15\" class=\"edge\">\n",
+       "<title>4&#45;&gt;3</title>\n",
+       "<path fill=\"none\" stroke=\"#000000\" d=\"M76.0373,-101.7644C79.4118,-85.3742 84.3982,-61.1544 88.1423,-42.9685\"/>\n",
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+       "<text text-anchor=\"start\" x=\"84.2829\" y=\"-72.8\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#000000\">!b &amp; c</text>\n",
+       "<text text-anchor=\"start\" x=\"86.7829\" y=\"-58.8\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#1f78b4\">⓿</text>\n",
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        "<!-- 4&#45;&gt;3 -->\n",
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-       "<title>4-&gt;3</title>\n",
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+       "<g id=\"edge16\" class=\"edge\">\n",
+       "<title>4&#45;&gt;3</title>\n",
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+       "<text text-anchor=\"start\" x=\"136.2829\" y=\"-72.8\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#000000\">b &amp; c</text>\n",
+       "<text text-anchor=\"start\" x=\"129.2829\" y=\"-58.8\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#1f78b4\">⓿</text>\n",
+       "<text text-anchor=\"start\" x=\"145.2829\" y=\"-58.8\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#ff4da0\">❶</text>\n",
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        "<!-- 4&#45;&gt;4 -->\n",
-       "<g class=\"edge\" id=\"edge17\">\n",
-       "<title>4-&gt;4</title>\n",
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+       "<g id=\"edge17\" class=\"edge\">\n",
+       "<title>4&#45;&gt;4</title>\n",
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+       "<text text-anchor=\"start\" x=\"117.2829\" y=\"-123.8\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#000000\">!b &amp; !c</text>\n",
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+       "<g id=\"edge18\" class=\"edge\">\n",
+       "<title>4&#45;&gt;4</title>\n",
+       "<path fill=\"none\" stroke=\"#000000\" d=\"M97.1504,-127.4501C123.9699,-131.5654 158.2829,-129.082 158.2829,-120 158.2829,-111.6985 129.614,-108.9102 104.2043,-111.6351\"/>\n",
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+       "<text text-anchor=\"start\" x=\"158.2829\" y=\"-123.8\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#000000\">b &amp; !c</text>\n",
+       "<text text-anchor=\"start\" x=\"160.7829\" y=\"-109.8\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#1f78b4\">⓿</text>\n",
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        "</g>\n",
        "</g>\n",
-       "</svg></td></tr></table>"
+       "</svg>\n",
+       "</div>"
       ],
       "text/plain": [
        "<IPython.core.display.HTML object>"
       ]
      },
-     "execution_count": 2,
      "metadata": {},
-     "output_type": "execute_result"
+     "output_type": "display_data"
     }
    ],
    "source": [
     "a1 = spot.translate('X(a W b)')\n",
     "a2 = spot.translate('G(Fc U b)')\n",
     "prod = spot.product(a1, a2)\n",
-    "horiz(a1.show(), a2.show(), prod.show())"
+    "display_inline(a1, a2, prod)"
    ]
   },
   {
@@ -424,71 +441,79 @@
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-       "<text fill=\"#000000\" font-family=\"Lato\" font-size=\"14.00\" text-anchor=\"start\" x=\"22.5\" y=\"-270.8\">[Büchi]</text>\n",
+       "<div style='vertical-align:text-top;display:inline-block;'><?xml version=\"1.0\" encoding=\"UTF-8\" standalone=\"no\"?>\n",
+       "<!DOCTYPE svg PUBLIC \"-//W3C//DTD SVG 1.1//EN\"\n",
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+       "<text text-anchor=\"start\" x=\"86.2829\" y=\"-325.8\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#000000\">a &amp; !b &amp; c</text>\n",
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+       "<title>1&#45;&gt;2</title>\n",
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+       "<text text-anchor=\"start\" x=\"106.2829\" y=\"-274.8\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#000000\">a &amp; !b &amp; !c</text>\n",
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+       "<text text-anchor=\"start\" x=\"26.2829\" y=\"-274.8\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#000000\">a &amp; !b &amp; c</text>\n",
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+       "<title>2&#45;&gt;3</title>\n",
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+       "<g id=\"edge12\" class=\"edge\">\n",
+       "<title>3&#45;&gt;3</title>\n",
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        "</g>\n",
        "<!-- 3&#45;&gt;3 -->\n",
-       "<g class=\"edge\" id=\"edge13\">\n",
-       "<title>3-&gt;3</title>\n",
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+       "<g id=\"edge13\" class=\"edge\">\n",
+       "<title>3&#45;&gt;3</title>\n",
+       "<path fill=\"none\" stroke=\"#000000\" d=\"M117.8313,-25.5159C143.4268,-29.5385 175.2829,-27.0332 175.2829,-18 175.2829,-9.7784 148.8938,-6.9644 124.854,-9.558\"/>\n",
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+       "<text text-anchor=\"start\" x=\"194.7829\" y=\"-21.8\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#000000\">b</text>\n",
+       "<text text-anchor=\"start\" x=\"175.2829\" y=\"-7.8\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#1f78b4\">⓿</text>\n",
+       "<text text-anchor=\"start\" x=\"191.2829\" y=\"-7.8\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#ff4da0\">❶</text>\n",
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        "<!-- 3&#45;&gt;4 -->\n",
-       "<g class=\"edge\" id=\"edge14\">\n",
-       "<title>3-&gt;4</title>\n",
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-       "<text fill=\"#1f78b4\" font-family=\"Lato\" font-size=\"14.00\" text-anchor=\"start\" x=\"42.7829\" y=\"-57.8\">⓿</text>\n",
+       "<g id=\"edge14\" class=\"edge\">\n",
+       "<title>3&#45;&gt;4</title>\n",
+       "<path fill=\"none\" stroke=\"#000000\" d=\"M68.4948,-25.2844C54.6203,-30.7737 38.5027,-39.8358 30.2829,-54 23.5906,-65.5321 24.7115,-71.8865 30.2829,-84 33.724,-91.4818 39.5722,-97.9905 45.8288,-103.3386\"/>\n",
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+       "<text text-anchor=\"start\" x=\"30.2829\" y=\"-72.8\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#000000\">!b &amp; !c</text>\n",
+       "<text text-anchor=\"start\" x=\"42.7829\" y=\"-57.8\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#1f78b4\">⓿</text>\n",
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        "<!-- 4&#45;&gt;3 -->\n",
-       "<g class=\"edge\" id=\"edge15\">\n",
-       "<title>4-&gt;3</title>\n",
-       "<path d=\"M76.0373,-101.7644C79.4118,-85.3742 84.3982,-61.1544 88.1423,-42.9685\" fill=\"none\" stroke=\"#000000\"/>\n",
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-       "<text fill=\"#ff4da0\" font-family=\"Lato\" font-size=\"14.00\" text-anchor=\"start\" x=\"102.7829\" y=\"-58.8\">❶</text>\n",
+       "<g id=\"edge15\" class=\"edge\">\n",
+       "<title>4&#45;&gt;3</title>\n",
+       "<path fill=\"none\" stroke=\"#000000\" d=\"M76.0373,-101.7644C79.4118,-85.3742 84.3982,-61.1544 88.1423,-42.9685\"/>\n",
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+       "<text text-anchor=\"start\" x=\"84.2829\" y=\"-72.8\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#000000\">!b &amp; c</text>\n",
+       "<text text-anchor=\"start\" x=\"86.7829\" y=\"-58.8\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#1f78b4\">⓿</text>\n",
+       "<text text-anchor=\"start\" x=\"102.7829\" y=\"-58.8\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#ff4da0\">❶</text>\n",
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        "<!-- 4&#45;&gt;3 -->\n",
-       "<g class=\"edge\" id=\"edge16\">\n",
-       "<title>4-&gt;3</title>\n",
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+       "<g id=\"edge16\" class=\"edge\">\n",
+       "<title>4&#45;&gt;3</title>\n",
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+       "<text text-anchor=\"start\" x=\"136.2829\" y=\"-72.8\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#000000\">b &amp; c</text>\n",
+       "<text text-anchor=\"start\" x=\"129.2829\" y=\"-58.8\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#1f78b4\">⓿</text>\n",
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        "<!-- 4&#45;&gt;4 -->\n",
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-       "<title>4-&gt;4</title>\n",
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-       "<text fill=\"#1f78b4\" font-family=\"Lato\" font-size=\"14.00\" text-anchor=\"start\" x=\"129.7829\" y=\"-108.8\">⓿</text>\n",
+       "<g id=\"edge17\" class=\"edge\">\n",
+       "<title>4&#45;&gt;4</title>\n",
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+       "<text text-anchor=\"start\" x=\"117.2829\" y=\"-123.8\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#000000\">!b &amp; !c</text>\n",
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+       "<g id=\"edge18\" class=\"edge\">\n",
+       "<title>4&#45;&gt;4</title>\n",
+       "<path fill=\"none\" stroke=\"#000000\" d=\"M97.1504,-127.4501C123.9699,-131.5654 158.2829,-129.082 158.2829,-120 158.2829,-111.6985 129.614,-108.9102 104.2043,-111.6351\"/>\n",
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+       "<text text-anchor=\"start\" x=\"158.2829\" y=\"-123.8\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#000000\">b &amp; !c</text>\n",
+       "<text text-anchor=\"start\" x=\"160.7829\" y=\"-109.8\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#1f78b4\">⓿</text>\n",
+       "<text text-anchor=\"start\" x=\"176.7829\" y=\"-109.8\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#ff7f00\">❷</text>\n",
        "</g>\n",
        "</g>\n",
-       "</svg></td></tr></table>"
+       "</svg>\n",
+       "</div>"
       ],
       "text/plain": [
        "<IPython.core.display.HTML object>"
@@ -785,7 +818,7 @@
    "source": [
     "def show_prod(a1, a2, res):\n",
     "    s1 = a1.num_sets()\n",
-    "    display(horiz(a1.show(), a2.show('.tavb+{}'.format(s1)), res.show()))\n",
+    "    display_inline(a1, a2.show('.tvb+{}'.format(s1)), res)\n",
     "\n",
     "show_prod(a1, a2, prod)"
    ]
@@ -816,71 +849,79 @@
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-       "<text fill=\"#000000\" font-family=\"Lato\" font-size=\"14.00\" text-anchor=\"start\" x=\"22.5\" y=\"-270.8\">[Büchi]</text>\n",
+       "<div style='vertical-align:text-top;display:inline-block;'><?xml version=\"1.0\" encoding=\"UTF-8\" standalone=\"no\"?>\n",
+       "<!DOCTYPE svg PUBLIC \"-//W3C//DTD SVG 1.1//EN\"\n",
+       " \"http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd\">\n",
+       "<!-- Generated by graphviz version 2.40.1 (20161225.0304)\n",
+       " -->\n",
+       "<!-- Pages: 1 -->\n",
+       "<svg width=\"99pt\" height=\"307pt\"\n",
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+       "<text text-anchor=\"start\" x=\"22.5\" y=\"-270.8\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#000000\">[Büchi]</text>\n",
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+       "<text text-anchor=\"middle\" x=\"18\" y=\"-203.3\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#000000\">1</text>\n",
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+       "<g id=\"edge1\" class=\"edge\">\n",
+       "<title>I&#45;&gt;1</title>\n",
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        "</g>\n",
        "<!-- 0 -->\n",
-       "<g class=\"node\" id=\"node3\">\n",
+       "<g id=\"node3\" class=\"node\">\n",
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+       "<text text-anchor=\"middle\" x=\"18\" y=\"-116.3\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#000000\">0</text>\n",
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+       "<title>1&#45;&gt;2</title>\n",
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        "<!-- 3 -->\n",
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@@ -2470,7 +2551,7 @@
      "name": "stdout",
      "output_type": "stream",
      "text": [
-      "254 µs ± 11.3 µs per loop (mean ± std. dev. of 7 runs, 1000 loops each)\n"
+      "409 µs ± 6.68 µs per loop (mean ± std. dev. of 7 runs, 1000 loops each)\n"
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@@ -2487,7 +2568,7 @@
      "name": "stdout",
      "output_type": "stream",
      "text": [
-      "3.35 µs ± 149 ns per loop (mean ± std. dev. of 7 runs, 100000 loops each)\n"
+      "7.02 µs ± 98.5 ns per loop (mean ± std. dev. of 7 runs, 100000 loops each)\n"
      ]
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