#! /bin/bash --

command -v lynx >/dev/null 2>&1 || { echo "Need lynx"; exit 1; }

urlencode () {
	local str="$*"
	local encoded=
	local i c x
	for (( i=0; i < ${#str}; ++i )); do
		c=${str:$i:1}
		case "$c" in
			[-_.~a-zA-Z0-9] ) x="$c" ;;
			* ) printf -v x '%%%02x' "'$c" ;;
		esac
		encoded+="$x"
	done
	printf %s "$encoded"
}

if [ -t 0 ]; then
	query=$(urlencode "$*")
	dump=
else
	query=$(urlencode "$(tr -d '\n')")
	dump="-dump"
fi

base="https://duckduckgo.com/lite?q="
[ "$0" = "ggl" ] && base="https://www.google.com/search?q="

exec lynx $dump "$base$query"