This document outlines a functional specification for implementing a robust double-extension .txt.txt handler, designed to safely manage scenarios where text files are inadvertently saved with dual extensions, preventing common data loss or security issues. Feature Specification: .txt.txt Extension Handler Draft Version: 1.0 1. Purpose
if filename.endswith(".txt.txt"): safe_filename = filename.replace(".txt.txt", ".txt") # Log incident for user warn_user("Double extension detected. Renaming for safety.") Use code with caution. Copied to clipboard
When a user attempts to save a file as .txt.txt , a warning should appear stating: "The extension '.txt.txt' is unusual. Did you mean '.txt'?" This helps prevent user confusion. To make this feature even better, let me know:
Default text editors (e.g., Notepad, TextEdit) SHOULD open .txt.txt files directly.
The system MUST flag .txt.txt files in email attachments or download folders for potential spoofing. 3. Implementation Logic Detection: Scan for file extension regex: ^.*\.txt\.txt$ Handling Rule:
The system MUST identify files ending in .txt.txt as plain text files, similar to .txt files.
The purpose of this feature is to identify, validate, and correctly process files named with the suffix .txt.txt (e.g., report.txt.txt ). It ensures that applications treating these as plain text still parse them correctly, while security systems recognize them as potentially deceptive. 2. Functional Requirements
