launcher script for mupdf-x11

mupdf.sh

#!/bin/sh

cmd="/usr/lib/mupdf/mupdf-x11"
ext=".gz .Z .xz .bz2"

file=""
cmdtmp=$cmd
i=1
while [ $i -le $# ]; do
        arg=$(eval echo \$$i)
        i=$((i += 1))

        for j in $ext; do
                if [ "${arg#${arg%$j}}" = $j ]; then
                        file="$arg"
                        page=$(eval echo \$$i)
                        break 2
                fi
        done
        cmdtmp="$cmdtmp $arg"
done

test "$file" || exec $cmd "$@"

tmp=$(tempfile -s .pdf)

case "$file" in
    *.gz|*.Z)  zcat -- "$file" > $tmp && file=$tmp;;
    *.xz)     xzcat -- "$file" > $tmp && file=$tmp;;
    *.bz2)    bzcat -- "$file" > $tmp && file=$tmp;;
esac

trap 'rm -f $tmp' EXIT

cmdtmp="$cmdtmp $file $page"

$cmdtmp