#!/usr/bin/env sh

# Description: View an image or images in a directory in pager
#
# Note: While it's very easy to fix this in Bash (sample commented),  with the
#       current POSIX shell script implementation the unmatched patterns are spewed.
#       A patch to fix this is highly appreciated.
#
# Shell: POSIX compliant
# Author: Arun Prakash Jana

if ! [ -z "$1" ]; then
    if [ -d "$1" ]; then
        cd "$1"

        # Bash implementation
        # shopt -s nullglob
        # viu -n *.bmp *.BMP *.gif *.GIF *.jpg *.JPG *.jpeg *.JPEG *.png *.PNG *.svg *.SVG 2>/dev/null | less -R

        for file in *.bmp *.BMP *.gif *.GIF *.jpg *.JPG *.jpeg *.JPEG *.png *.PNG *.svg *.SVG
        do
            viu -n "$file" 2>/dev/null
        done | less -R
    else
        viu -n "$1" | less -R
    fi
fi