Description

A simple text viewer for viewing differences between 2 files.

Requirement

• Python 3.8

Usage

• Use keyboard or vim-style arrow keys to control cursor up and down.
• Refresh comparison by key r

python main.py <fromfile> <tofile>	 	# compare 2 file based on fromfile 
python main.py -r <fromfile> <tofile>	# compare 2 file based on tofile.

Screenshot

Update Logs

• 2022/11/10:
  • Handle keyboard interrupt exception and resize event.
  • Keep tab spacing in viewer.
  • Press r can refresh comparison.
• 2022/11/03:
  • Enable vim-style arrow keys (k, j, h, l). For my VS code terminal (PowerShell) , the keyboard arrow keys is unable because its return value of getkey() is differ from the official key list.
  • Add file name in the top of viewer.
  • Add the line number range for each block.
  • Add the argument reverse in CLI.

Reference

• Python Howto : Curses Programming with Python

• Python curses — Terminal handling for character-cell displays

• Python difflib — Helpers for computing deltas

• Wasim Lorgat Build a text editor with Python and curses