regex_map_self.ipynb

{
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  {
   "cell_type": "code",
   "execution_count": 16,
   "metadata": {
    "collapsed": true
   },
   "outputs": [],
   "source": [
    "import re"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 2,
   "metadata": {
    "collapsed": true
   },
   "outputs": [],
   "source": [
    "given = 'ca407[-B4-C2-C3] ca408[-B4-B5-C2]'\n",
    "result = ['ca407-B4', 'ca407-C2', 'ca407-C3', 'ca408-B4', 'ca408-B5', 'ca408-C2']"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 40,
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "['ca407-B4', 'ca407-C2', 'ca407-C3', 'ca408-B4', 'ca408-B5', 'ca408-C2']"
      ]
     },
     "execution_count": 40,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "def map_self(s):\n",
    "    # pattern to extract\n",
    "    pattern = r'([a-c]{2}[0-9]{3})(.*)'\n",
    "    get = re.compile(pattern)\n",
    "\n",
    "    front = list(get.search(s).groups())[0]\n",
    "    raw_back = list(get.search(s).groups())[1]\n",
    "    back = [x for x in raw_back.replace('[', '').replace(']', '').split('-') if x]\n",
    "\n",
    "    return [f'{front}-{each}' for each in back]\n",
    "\n",
    "def flatten_list(nested_list):\n",
    "    # https://stackoverflow.com/a/952952\n",
    "    return [item for sublist in nested_list for item in sublist]\n",
    "\n",
    "flatten_list([map_self(x) for x in given.split()])\n"
   ]
  }
 ],
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work like a charm. Thanks krub God Tul