Add -c argument, for showing *only* responses

fedi2html.sh

@@ -269,18 +269,22 @@ usage() {
 	echo "if privacy or total archival, is a concern, to use wget(1)’s --mirror"
 	echo "(or something like it) to fetch even these foreign files."
 	echo
+	echo "  -c             only print the responses (children) of a post"
 	echo "  -h             print this message and exit"
 	echo "  -I             display posts in reverse-chronological order"
 	echo "  -R             do not recursively display posts’ responses"
 }
 
 
-while getopts 'hRI' arg; do
+while getopts 'hcIR' arg; do
 	case $arg in
 		h)
 			usage
 			exit 0
 			;;
+		c)
+			NO_PARENT="1"
+			;;
 		I)
 			REVERSE_ORDER="1"
 			;;
@@ -302,5 +306,10 @@ fi
 
 POST="$(fetch_post "$URL")"
 RESPONSES="$(fetch_post_context "$URL" | context_to_responses)"
-render_post "$POST" "$RESPONSES" 0
+
+if test -n "$NO_PARENT"; then
+	render_responses "$POST" "$RESPONSES" 0
+else
+	render_post "$POST" "$RESPONSES" 0
+fi