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|
#!/usr/bin/bash
# TEXTVIEW="nvim -R"
TEXTVIEW="less"
PDFVIEW="zathura"
# arch package rfc(any)
RFC_DIR=/usr/share/doc/rfc
RFC_INDEX=$RFC_DIR/rfc-index.txt
print_help(){
echo "usage:"
echo " rfc [option] <rfc-number>"
echo "options:"
echo " --pdf open rfc in pdf viewer"
echo " -q quick query, show only the summary"
}
print_summary(){
# if sed takes no filename, it will read stdin
# but we should let it fail...
if test -z "$RFC_INDEX"
then
echo "BAD RFC_INDEX"
exit 1
fi
sed -n "/^$1/,/^$/p" $RFC_INDEX
}
open_pdf(){
PDF=$RFC_DIR/pdf/rfc$1.pdf
if [ ! -f "$PDF" ]; then
echo "$PDF not available."
exit 1;
fi
$PDFVIEW $PDF
}
open_txt(){
TXT=$RFC_DIR/txt/rfc$1.txt
if [ ! -f "$TXT" ]; then
echo "$TXT not available."
exit 1;
fi
$TEXTVIEW $TXT
}
re='^[0-9]+$'
# parse argumentsa
while [[ $# -gt 0 ]]; do
case $1 in
-q)
if ! [[ $2 =~ $re ]] ; then
echo "invalid input" >&2; print_help; exit 1
fi
print_summary $2
exit
;;
--pdf)
if ! [[ $2 =~ $re ]] ; then
echo "invalid input" >&2; print_help; exit 1
fi
open_pdf $2
exit
;;
-*|--*)
print_help
exit 1
;;
*)
if ! [[ $1 =~ $re ]] ; then
echo "invalid input $2" >&2; print_help; exit 1
fi
open_txt $1
exit
;;
esac
done
if [ ! $# -eq 1 ]; then
print_help
exit 1
fi
|
