Add palindrome checker

[Sekiro4321]

Testing coverage-gated test generation

[github-actions]

🤖 AI Code Review

Here's a review of the provided code diff:

--- a/scripts/more_utils.py
+++ b/scripts/more_utils.py
@@ -0,0 +1,4 @@
+def is_palindrome(text):
+    """Check if a string is a palindrome."""
+    cleaned = text.lower().replace(" ", "")
+    return cleaned == cleaned[::-1]
\ No newline at end of file

Review Feedback

1. Bug Risk / Best Practice: Palindrome Definition and Cleaning Logic

• Severity: MEDIUM

• Description: The current is_palindrome function only ignores spaces and case when cleaning the input string. A common and more robust definition of a palindrome often involves ignoring all non-alphanumeric characters (e.g., punctuation, numbers, special symbols) to correctly identify palindromes like "A man, a plan, a canal: Panama". With the current implementation, is_palindrome("A man, a plan, a canal: Panama") would incorrectly return False. This can lead to unexpected behavior if users assume a broader definition of "palindrome".

• Suggested Fix: Update the cleaning logic to remove all non-alphanumeric characters. If the current behavior (only ignoring spaces) is explicitly intended, the docstring should be updated to clarify this specific definition.

  import re
  
  def is_palindrome(text: str) -> bool:
      """
      Check if a string is a palindrome, ignoring non-alphanumeric characters and case.
      e.g., "A man, a plan, a canal: Panama" is considered a palindrome.
      """
      # Use regex to remove all non-alphanumeric characters
      cleaned = re.sub(r'[^a-zA-Z0-9]', '', text).lower()
      return cleaned == cleaned[::-1]

2. Best Practice: Missing Newline at End of File

• Severity: LOW
• Description: The file more_utils.py does not end with a newline character. This is a common best practice in Unix-like systems and can sometimes lead to minor issues when concatenating files, using certain command-line tools (e.g., cat, diff), or with some version control systems (like Git, which explicitly notes \ No newline at end of file).
• Suggested Fix: Add a newline character at the very end of the file. Most IDEs and text editors can be configured to do this automatically upon saving.

3. Best Practice: Missing Type Hints

• Severity: LOW

• Description: The function is_palindrome lacks type hints for its text argument and its return value. Adding type hints improves code readability, makes the function's expected inputs and outputs explicit, and allows for better static analysis and tooling support (e.g., MyPy, IDE autocompletion).

• Suggested Fix: Add type hints to the function signature.

  def is_palindrome(text: str) -> bool:
      """Check if a string is a palindrome."""
      # ... function body ...

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SEVERITY_SUMMARY: WARNING

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