changes

Signed-off-by: Suvaditya Mukherjee <suvadityamuk@gmail.com>

utils.py

@@ -0,0 +1,85 @@
+import gdown
+import os
+from urllib.parse import urlparse, parse_qs
+
+def download_pdf_from_gdrive(url, output_path=None):
+    """
+    Download a PDF file from Google Drive using the provided sharing URL.
+
+    Parameters:
+    url (str): The Google Drive sharing URL of the PDF file
+    output_path (str, optional): The path where the PDF should be saved.
+                                If not provided, saves in current directory.
+
+    Returns:
+    str: Path to the downloaded file if successful, None if failed
+
+    Raises:
+    ValueError: If the URL is invalid or doesn't point to a Google Drive file
+    """
+    try:
+        # Check if URL is provided
+        if not url:
+            raise ValueError("URL cannot be empty")
+
+        # Handle different types of Google Drive URLs
+        if 'drive.google.com' not in url:
+            raise ValueError("Not a valid Google Drive URL")
+
+        # Extract file ID from the URL
+        if '/file/d/' in url:
+            file_id = url.split('/file/d/')[1].split('/')[0]
+        elif 'id=' in url:
+            file_id = parse_qs(urlparse(url).query)['id'][0]
+        else:
+            raise ValueError("Could not extract file ID from the URL")
+
+        # Set default output path if none provided
+        if not output_path:
+            output_path = 'downloaded_file.pdf'
+
+        # Ensure the output path ends with .pdf
+        if not output_path.lower().endswith('.pdf'):
+            output_path += '.pdf'
+
+        # Create the directory if it doesn't exist
+        os.makedirs(os.path.dirname(output_path) if os.path.dirname(output_path) else '.', exist_ok=True)
+
+        # Download the file
+        output = gdown.download(id=file_id, output=output_path, quiet=False)
+
+        if output is None:
+            raise ValueError("Download failed - file might be inaccessible or not exist")
+
+        return output
+
+    except Exception as e:
+        print(f"Error downloading PDF: {str(e)}")
+        return None
+
+def merge_strings_with_prefix(strings):
+    """Merges strings in a list that start with a specific prefix.
+
+    Args:
+    strings: A list of strings.
+
+    Returns:
+    A new list of merged strings.
+    """
+
+    result = []
+    current_merged_string = ""
+
+    for string in strings:
+        if string.startswith("•"):
+            if current_merged_string:
+                result.append(current_merged_string)
+            current_merged_string = string
+        else:
+            current_merged_string += string
+
+    if current_merged_string:
+        result.append(current_merged_string)
+
+    return result
+