HaskeDex

My attempt to recreate the "hcat" pager application described in the "Effective Haskell" book for learning purposes

Simply put, program works a lot like the less linux terminal command for displaying the contents of a text file.

The name was inspired by "Pokedex" because of the similarity of the program's intended purpose. A Pokedex is meant to show the details of a pokemon found in the wild while the HaskeDex is meant to show the details of files on a computer

Notable deviations from the book

• The project doesn't include status line displaying file informaiton. It instead shows the file information when you pass info as an argument after the filepath.
  • For example: cabal run HaskeDex HaskeDex.cabal info
• The groupsOf function is modified as the original implementation somehow gave me infinite lists when I used it (likely a skill issue on my end).
• I avoided the use of the ByteString module as I couldn't get it to work (likely a skill issue on my end).
• I added another validation step for empty strings "" for the handleArgs function
• I would occasionally use the case .. of style of pattern matching while following along with the orignal that uses a different style of pattern matching.
• I refactord the code to their do block equivalent as much as possible

How to run the project

1. Make sure you have Haskell and Cabal installed. I installed and managed Haskell and Cabal verions via ghcup (available by following the instructions here)
2. Go to the root of the HaskeDex project folder and run cabal build
3. While at the root folder, run the following to display them in the terminal:
   • cabal run HaskeDex HaskeDex.cabal to display the contents of the HaskeDex.cabal file
   • cabal run HaskeDex HaskeDex.cabal info to display the file information of the file