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     "end_time": "2024-09-24T11:11:31.348040Z",
     "start_time": "2024-09-24T11:11:28.329888Z"
    }
   },
   "source": [
    "import os\n",
    "import re\n",
    "\n",
    "# Function to capitalize the first letter of each sentence\n",
    "def capitalize_sentences(text):\n",
    "    # Use regular expression to match sentence boundaries\n",
    "    return re.sub(r'(?<!\\w)([.!?]\\s+|^)(\\w)', lambda m: m.group(0).upper(), text)\n",
    "\n",
    "folder_path = \"/home/vahan/Downloads/data_news_preprocessed/data_news_preprocessed\"  # Change this to your folder path\n",
    "# Replace with the path to your folder\n",
    "\n",
    "# Loop through each file in the folder\n",
    "for filename in os.listdir(folder_path):\n",
    "    if filename.endswith('.txt'):\n",
    "        file_path = os.path.join(folder_path, filename)\n",
    "\n",
    "        # Open and read the content of the file\n",
    "        with open(file_path, 'r', encoding='utf-8') as file:\n",
    "            content = file.read()\n",
    "\n",
    "        # Capitalize the first letter of each sentence\n",
    "        updated_content = capitalize_sentences(content)\n",
    "\n",
    "        # Write the updated content back to the file\n",
    "        with open(file_path, 'w', encoding='utf-8') as file:\n",
    "            file.write(updated_content)\n",
    "\n",
    "print(\"All text files have been updated.\")\n",
    "\n",
    "\n",
    "# Specify the folder containing txt files\n",
    "folder_path = \"/home/vahan/Downloads/data_news_preprocessed/data_news_preprocessed\"  # Change this to your folder path\n",
    "\n"
   ],
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "All text files have been updated.\n"
     ]
    }
   ],
   "execution_count": 2
  },
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   "metadata": {},
   "cell_type": "code",
   "outputs": [],
   "execution_count": null,
   "source": "",
   "id": "fe6f29ac4735fa3e"
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