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twa: add accepting_run() and accepting_word() methods

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Fixes #153.

* spot/twa/twa.cc, spot/twa/twa.hh: Add the methods.
* bin/autfilt.cc, bin/common_aoutput.hh, bin/ltlcross.cc,
tests/python/highlighting.ipynb, tests/python/word.ipynb: Use
them to simplify the code.
* NEWS: Mention them.
This commit is contained in:
Alexandre Duret-Lutz 2016-07-18 23:20:49 +02:00
parent 3836ea8d18
commit 014a9dbd6b
8 changed files with 145 additions and 71 deletions
Download patch file Download diff file Expand all files Collapse all files

70
tests/python/word.ipynb
View file

@ -1,7 +1,7 @@
{
"metadata": {
"name": "",
"signature": "sha256:261c16336ba5deefb7e9ebe705cc5c24f1cbba8622030874d2719f5045289c53"
"signature": "sha256:4fc3934cf5fa0e612923dc4253b5e40115b103a93f588595a6706ec77e7994a9"
},
"nbformat": 3,
"nbformat_minor": 0,
@ -139,7 +139,7 @@
"</svg>\n"
],
"text": [
"<spot.impl.twa_graph; proxy of <Swig Object of type 'std::shared_ptr< spot::twa_graph > *' at 0x7fa33c302870> >"
"<spot.impl.twa_graph; proxy of <Swig Object of type 'std::shared_ptr< spot::twa_graph > *' at 0x7fb71c0e18a0> >"
]
}
],
@ -149,17 +149,14 @@
"cell_type": "markdown",
"metadata": {},
"source": [
"The call to `couvreur99()` just instanciate the emptiness check, but does not run the check. Calling `check()` will return `None` if no accepting run was found. Otherwise the presence of the accepting run is established, but an accepting run hasn't necessarily been calculated: calling `accepting_run()` on the result will cause this computation to happen.\n",
"\n",
"\n",
"In the example below, we do not check the result of `check()` because we know that the input formula is satisfiable, so the automaton has an accepting run."
"Build an accepting run:"
]
},
{
"cell_type": "code",
"collapsed": false,
"input": [
"run = spot.couvreur99(aut).check().accepting_run(); run"
"run = aut.accepting_run(); run"
],
"language": "python",
"metadata": {},
@ -295,6 +292,33 @@
],
"prompt_number": 7
},
{
"cell_type": "markdown",
"metadata": {},
"source": [
"Such a simplified word can be created directly from the automaton:"
]
},
{
"cell_type": "code",
"collapsed": false,
"input": [
"aut.accepting_word()"
],
"language": "python",
"metadata": {},
"outputs": [
{
"metadata": {},
"output_type": "pyout",
"prompt_number": 8,
"text": [
"cycle{!a & b; a & b}"
]
}
],
"prompt_number": 8
},
{
"cell_type": "markdown",
"metadata": {},
@ -323,7 +347,7 @@
]
}
],
"prompt_number": 8
"prompt_number": 9
},
{
"cell_type": "code",
@ -338,13 +362,13 @@
{
"metadata": {},
"output_type": "pyout",
"prompt_number": 9,
"prompt_number": 10,
"text": [
"a; a & b; cycle{!a & !b}"
]
}
],
"prompt_number": 9
"prompt_number": 10
},
{
"cell_type": "markdown",
@ -362,7 +386,7 @@
"language": "python",
"metadata": {},
"outputs": [],
"prompt_number": 10
"prompt_number": 11
},
{
"cell_type": "code",
@ -376,7 +400,7 @@
{
"metadata": {},
"output_type": "pyout",
"prompt_number": 11,
"prompt_number": 12,
"svg": [
"<?xml version=\"1.0\" encoding=\"UTF-8\" standalone=\"no\"?>\n",
"<!DOCTYPE svg PUBLIC \"-//W3C//DTD SVG 1.1//EN\"\n",
@ -454,17 +478,17 @@
"</svg>\n"
],
"text": [
"<spot.impl.twa_graph; proxy of <Swig Object of type 'std::shared_ptr< spot::twa_graph > *' at 0x7fa33c3028d0> >"
"<spot.impl.twa_graph; proxy of <Swig Object of type 'std::shared_ptr< spot::twa_graph > *' at 0x7fb71c0e1a20> >"
]
}
],
"prompt_number": 11
"prompt_number": 12
},
{
"cell_type": "markdown",
"metadata": {},
"source": [
"Test some syntax errors"
"The rest of this pages tests some syntax errors, you (humans) may skip it, but the test suite will not."
]
},
{
@ -485,7 +509,7 @@
]
}
],
"prompt_number": 12
"prompt_number": 13
},
{
"cell_type": "code",
@ -505,7 +529,7 @@
]
}
],
"prompt_number": 13
"prompt_number": 14
},
{
"cell_type": "code",
@ -525,7 +549,7 @@
]
}
],
"prompt_number": 14
"prompt_number": 15
},
{
"cell_type": "code",
@ -545,7 +569,7 @@
]
}
],
"prompt_number": 15
"prompt_number": 16
},
{
"cell_type": "code",
@ -557,7 +581,7 @@
"language": "python",
"metadata": {},
"outputs": [],
"prompt_number": 16
"prompt_number": 17
},
{
"cell_type": "code",
@ -575,13 +599,13 @@
"output_type": "pyerr",
"traceback": [
"\u001b[0;31m---------------------------------------------------------------------------\u001b[0m\n\u001b[0;31mRuntimeError\u001b[0m Traceback (most recent call last)",
"\u001b[0;32m<ipython-input-17-971829bb8f5f>\u001b[0m in \u001b[0;36m<module>\u001b[0;34m()\u001b[0m\n\u001b[1;32m 1\u001b[0m \u001b[0;31m# ... as long as this word is not printed.\u001b[0m\u001b[0;34m\u001b[0m\u001b[0;34m\u001b[0m\u001b[0m\n\u001b[0;32m----> 2\u001b[0;31m \u001b[0mprint\u001b[0m\u001b[0;34m(\u001b[0m\u001b[0mw\u001b[0m\u001b[0;34m)\u001b[0m\u001b[0;34m\u001b[0m\u001b[0m\n\u001b[0m",
"\u001b[0;32m/home/adl/git/spot/python/spot/impl.py\u001b[0m in \u001b[0;36m__str__\u001b[0;34m(self)\u001b[0m\n\u001b[1;32m 3511\u001b[0m \u001b[0;34m\u001b[0m\u001b[0m\n\u001b[1;32m 3512\u001b[0m \u001b[0;32mdef\u001b[0m \u001b[0m__str__\u001b[0m\u001b[0;34m(\u001b[0m\u001b[0mself\u001b[0m\u001b[0;34m)\u001b[0m \u001b[0;34m->\u001b[0m \u001b[0;34m\"std::string\"\u001b[0m\u001b[0;34m:\u001b[0m\u001b[0;34m\u001b[0m\u001b[0m\n\u001b[0;32m-> 3513\u001b[0;31m \u001b[0;32mreturn\u001b[0m \u001b[0m_impl\u001b[0m\u001b[0;34m.\u001b[0m\u001b[0mtwa_word___str__\u001b[0m\u001b[0;34m(\u001b[0m\u001b[0mself\u001b[0m\u001b[0;34m)\u001b[0m\u001b[0;34m\u001b[0m\u001b[0m\n\u001b[0m\u001b[1;32m 3514\u001b[0m \u001b[0mtwa_word_swigregister\u001b[0m \u001b[0;34m=\u001b[0m \u001b[0m_impl\u001b[0m\u001b[0;34m.\u001b[0m\u001b[0mtwa_word_swigregister\u001b[0m\u001b[0;34m\u001b[0m\u001b[0m\n\u001b[1;32m 3515\u001b[0m \u001b[0mtwa_word_swigregister\u001b[0m\u001b[0;34m(\u001b[0m\u001b[0mtwa_word\u001b[0m\u001b[0;34m)\u001b[0m\u001b[0;34m\u001b[0m\u001b[0m\n",
"\u001b[0;32m<ipython-input-18-971829bb8f5f>\u001b[0m in \u001b[0;36m<module>\u001b[0;34m()\u001b[0m\n\u001b[1;32m 1\u001b[0m \u001b[0;31m# ... as long as this word is not printed.\u001b[0m\u001b[0;34m\u001b[0m\u001b[0;34m\u001b[0m\u001b[0m\n\u001b[0;32m----> 2\u001b[0;31m \u001b[0mprint\u001b[0m\u001b[0;34m(\u001b[0m\u001b[0mw\u001b[0m\u001b[0;34m)\u001b[0m\u001b[0;34m\u001b[0m\u001b[0m\n\u001b[0m",
"\u001b[0;32m/home/adl/git/spot/python/spot/impl.py\u001b[0m in \u001b[0;36m__str__\u001b[0;34m(self)\u001b[0m\n\u001b[1;32m 3599\u001b[0m \u001b[0;34m\u001b[0m\u001b[0m\n\u001b[1;32m 3600\u001b[0m \u001b[0;32mdef\u001b[0m \u001b[0m__str__\u001b[0m\u001b[0;34m(\u001b[0m\u001b[0mself\u001b[0m\u001b[0;34m)\u001b[0m \u001b[0;34m->\u001b[0m \u001b[0;34m\"std::string\"\u001b[0m\u001b[0;34m:\u001b[0m\u001b[0;34m\u001b[0m\u001b[0m\n\u001b[0;32m-> 3601\u001b[0;31m \u001b[0;32mreturn\u001b[0m \u001b[0m_impl\u001b[0m\u001b[0;34m.\u001b[0m\u001b[0mtwa_word___str__\u001b[0m\u001b[0;34m(\u001b[0m\u001b[0mself\u001b[0m\u001b[0;34m)\u001b[0m\u001b[0;34m\u001b[0m\u001b[0m\n\u001b[0m\u001b[1;32m 3602\u001b[0m \u001b[0mtwa_word_swigregister\u001b[0m \u001b[0;34m=\u001b[0m \u001b[0m_impl\u001b[0m\u001b[0;34m.\u001b[0m\u001b[0mtwa_word_swigregister\u001b[0m\u001b[0;34m\u001b[0m\u001b[0m\n\u001b[1;32m 3603\u001b[0m \u001b[0mtwa_word_swigregister\u001b[0m\u001b[0;34m(\u001b[0m\u001b[0mtwa_word\u001b[0m\u001b[0;34m)\u001b[0m\u001b[0;34m\u001b[0m\u001b[0m\n",
"\u001b[0;31mRuntimeError\u001b[0m: a twa_word may not have an empty cycle"
]
}
],
"prompt_number": 17
"prompt_number": 18
}
],
"metadata": {}