List MIME types supported by llppac

#!/bin/bash
# Prints MIME types supported by the llppac script

# Misc MIME types listed in the llppac script
read -d '' miscMime <<"EOF"
application/postscript
application/pdf
image/vnd.djvu
text/html
application/msword
application/vnd.ms-powerpoint
application/vnd.ms-excel
image/svg+xml
image/png
image/jpeg
application/x-dvi
EOF

# MIME types of some office documents
officeMimeOne=$(grep -E "application/vnd\.openxmlformats-officedocument\." /etc/mime.types | sed -r 's/\t+.+$//g')
officeMimeTwo=$(grep -E "application/vnd\.oasis\.opendocument\." /etc/mime.types | sed -r 's/\t+.+$//g')

# lower case extensions of ImageMagick readable image formats
# http://www.imagemagick.org/script/formats.php
imExt=$(identify -list format | grep -E "^.{21}r" | grep -Eio "^ +[0-9a-z]+" | sed -r 's/ +//g' | tr '[:upper:]' '[:lower:]')
# MIME types starting with "image/" collected from /etc/mime.types
grep "image/" /etc/mime.types | sed -rn '/^[^\t]+\t+[^\t]+$/p' | sed -r 's/^([^\t]+)\t+([^\t]+)$/\2\t\1/' > image-mime.txt
# MIME types of ImageMagick readable image formats starting with "image/"
imMime=$(for i in $imExt; do sed -rn "/(^| )$i( |\t)/p" image-mime.txt | sed -r 's/.+\t//g'; done | sort -u)
# cleanup
rm -f image-mime.txt

# Print results separated with ";" (suitable in the MimeType field of .desktop files)
echo -e "$miscMime\n$officeMimeOne\n$officeMimeTwo\n$imMime" | sort -u | tr "\n" ";"