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   "source": [
    "import pandas as pd\n",
    "import regex\n",
    "\n",
    "# cleans our data\n",
    "# extracts intents for lab8 from dtsv files with dialogues\n",
    "def removeParenthesis(text):\n",
    "    resultText = \"\"\n",
    "    leftParCount = 0\n",
    "    for letter in text:\n",
    "        if letter == \"(\": leftParCount += 1\n",
    "        if (leftParCount == 0):\n",
    "            resultText += letter\n",
    "        if letter == \")\": leftParCount -= 1\n",
    "    return resultText\n",
    "\n",
    "def processFile(pathIn, pathOut, fileName):\n",
    "    # path = './lab/dialog-15-04-01.tsv'\n",
    "    encoding = \"utf-8\"\n",
    "    # encoding = \"cp1250\"\n",
    "    dialog_df = pd.read_csv(pathIn + fileName, sep='\\t', header=None, encoding=encoding)\n",
    "    dialog_df.iloc[:,2] = dialog_df.iloc[:,2].apply(lambda x : removeParenthesis(str(x)))\n",
    "    dialog_df.iloc[:,2] = dialog_df.iloc[:,2].apply(lambda x : regex.sub(r\"( & |&| AND |AND)\", \" \", str(x)))\n",
    "    dialog_df.iloc[:,2] = dialog_df.iloc[:,2].apply(lambda x : \" \".join(list(set(x.split()))))\n",
    "    dialog_df.to_csv(pathOut + fileName, sep=\"\\t\", index=False, header=None)\n",
    "\n",
    "def cleanAllData():\n",
    "    pathOut = './empty_data/'\n",
    "    pathIn = \"./data_v2/\"\n",
    "    i = 0\n",
    "    j = 0\n",
    "    nr = 0\n",
    "    for i in range(11,16):\n",
    "        for j in range(20):\n",
    "            for nr in range(1,2):\n",
    "                fileName = \"dialog-\" + str(i).zfill(2) + \"-\" + str(j).zfill(2) + \"-\" + str(nr).zfill(2) + \".tsv\"\n",
    "                try:\n",
    "                    processFile(pathIn, pathOut, fileName)\n",
    "                except:\n",
    "                    pass\n",
    "                try:\n",
    "                    fileName = \"dialog-\" + str(i).zfill(2) + \"-\" + str(j).zfill(2) + \"-\" + str(nr).zfill(2) + \"(test)\" + \".tsv\"\n",
    "                    processFile(pathIn, pathOut, fileName)\n",
    "                except:\n",
    "                    pass\n",
    "\n",
    "cleanAllData()\n",
    "\n"
   ]
  }
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