ch07-regex.ipynb

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     "cell_type": "code",
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     "input": [
      "import re"
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     "metadata": {},
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     "cell_type": "code",
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      "re.match(\"20[01][0-9].*[0-9][0-9].*[0-9][0-9]\", '2015-12-16')"
     ],
     "language": "python",
     "metadata": {},
     "outputs": [
      {
       "metadata": {},
       "output_type": "pyout",
       "prompt_number": 2,
       "text": [
        "<_sre.SRE_Match object; span=(0, 10), match='2015-12-16'>"
       ]
      }
     ],
     "prompt_number": 2
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    {
     "cell_type": "code",
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     "input": [
      "m = re.match(\"20[01][0-9].*[0-9][0-9].*[0-9][0-9]\", '2015-12-16')"
     ],
     "language": "python",
     "metadata": {},
     "outputs": [],
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       "prompt_number": 4,
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        "0"
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      "m.groups()"
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        "()"
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    {
     "cell_type": "code",
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     "input": [
      "m = re.match(\"20[01][0-9].*[0-9][0-9].*[0-9][0-9]\", 'not-a-date')"
     ],
     "language": "python",
     "metadata": {},
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      "m is None"
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        "True"
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      "re_date = re.compile(\"(20[01][0-9]).*([0-9][0-9]).*([0-9][0-9])\")"
     ],
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     "metadata": {},
     "outputs": [],
     "prompt_number": 8
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    {
     "cell_type": "code",
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     "input": [
      "re_date.match('2014-28-01')"
     ],
     "language": "python",
     "metadata": {},
     "outputs": [
      {
       "metadata": {},
       "output_type": "pyout",
       "prompt_number": 9,
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        "<_sre.SRE_Match object; span=(0, 10), match='2014-28-01'>"
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      "m = re_date.match('2014-28-01')"
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     "prompt_number": 10
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    {
     "cell_type": "code",
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      "m.groups()"
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     "outputs": [
      {
       "metadata": {},
       "output_type": "pyout",
       "prompt_number": 11,
       "text": [
        "('2014', '28', '01')"
       ]
      }
     ],
     "prompt_number": 11
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