Added a count-words feature

[rutvishah22]

PR Title

Add feature: Count words in extracted text

Summary

This PR adds a new feature to count the number of words in the extracted text.

Description

Users can now see the total word count for the text that is extracted from the PDF.
This helps provide more context and basic stats about the document.

Thank you,

Rutvi

[Copilot]

Pull Request Overview

This PR adds a word counting feature to the PDF text extraction tool. The new functionality allows users to see the total word count for text extracted from PDF files, providing additional context and basic statistics about the document.

• Adds a new count_words_in_pdf() function that extracts text and counts words using regex
• Integrates word counting into the example usage section to demonstrate the feature

[Copilot]

Inconsistent indentation: the function uses 7 spaces instead of the standard 4 spaces used elsewhere in the file.

Suggested change

	try:
	with open(pdf_path, 'rb') as pdf_file:
	pdf_reader = PyPDF2.PdfReader(pdf_file)
	text = ""
	for page_num in range(len(pdf_reader.pages)):
	page = pdf_reader.pages[page_num]
	text += page.extract_text()
	# Remove extra whitespaces and split into words
	words = re.findall(r'\b\w+\b', text.lower())
	return len(words)
	except FileNotFoundError:
	return "Error: PDF file not found."
	except Exception as e:
	return f"An error occurred: {e}"
	try:
	with open(pdf_path, 'rb') as pdf_file:
	pdf_reader = PyPDF2.PdfReader(pdf_file)
	text = ""
	for page_num in range(len(pdf_reader.pages)):
	page = pdf_reader.pages[page_num]
	text += page.extract_text()
	# Remove extra whitespaces and split into words
	words = re.findall(r'\b\w+\b', text.lower())
	return len(words)
	except FileNotFoundError:
	return "Error: PDF file not found."
	except Exception as e:
	return f"An error occurred: {e}"

[Copilot]

The function duplicates text extraction logic already present in the existing extract_text_from_pdf function. Consider reusing the existing function to avoid code duplication.

Suggested change

	with open(pdf_path, 'rb') as pdf_file:
	pdf_reader = PyPDF2.PdfReader(pdf_file)
	text = ""
	for page_num in range(len(pdf_reader.pages)):
	page = pdf_reader.pages[page_num]
	text += page.extract_text()
	# Remove extra whitespaces and split into words
	words = re.findall(r'\b\w+\b', text.lower())
	return len(words)
	# Reuse extract_text_from_pdf to get the text
	text = extract_text_from_pdf(pdf_path)
	if text is None:
	return "Error: Could not extract text from the PDF."
	# Remove extra whitespaces and split into words
	words = re.findall(r'\b\w+\b', text.lower())
	return len(words)

[Copilot]

The function returns different types (integer for success, string for errors). This inconsistent return type makes error handling difficult. Consider raising exceptions or returning a consistent data structure.

Suggested change

	return "Error: PDF file not found."
	except Exception as e:
	return f"An error occurred: {e}"
	raise FileNotFoundError(f"PDF file not found: {pdf_path}")
	except Exception as e:
	raise RuntimeError(f"An error occurred while processing the PDF: {e}")

[Copilot]

The re module is used but not imported. This will cause a NameError at runtime.