ANSI Art Browser

loop_ansi.sh

#!/bin/bash

# ANSi art function
function ANSi() {         
    tr '\0' ' ' < "$1" | iconv -f CP437 -t UTF8
} 

# Check if a directory was provided
if [ "$#" -ne 1 ]; then
    echo "Usage: $0 directory"
    exit 1
fi

# Directory containing the files
dir_path="$1"

# Get a sorted list of all files in the directory
files=("$dir_path"/*)
index=0

while true; do

    # Apply the ANSi function to the file
    ANSi "${files[$index]}"

    # Reset terminal colors
    echo -e "\033[0m"

    # Print the file name
    echo -e "\n\nDisplaying: ${files[$index]}"

    # Read the next key pressed by the user
    read -rsn1 input

    # Check the key and update the index accordingly
    case $input in
        $'\x1b')    # If the key is ESC
            read -rsn2 input    # read two more chars
            if [[ $input == "[A" ]] || [[ $input == "[D" ]]; then
                # If the key is Up arrow or Left arrow
                clear;
                ((index--))
            elif [[ $input == "[B" ]] || [[ $input == "[C" ]]; then
                # If the key is Down arrow
                clear;
                ((index++))
            fi
            ;;
        q)    # Quit on 'q' or 'Q'
            exit
            ;;
    esac

    # Ensure the index stays within the array bounds
    index=$(( (index+${#files[@]}) % ${#files[@]} ))
done

This uses iconv as dependency.