use -E instead of -r in sed

gophed

@@ -69,7 +69,7 @@ fi
 
 
 if [ "$script_name" = "gophed" ] || [ "$script_name" = "v" ]; then
-	sel="$(printf '%s' "$1" | sed -r 's:/:+:g')"
+	sel="$(printf '%s' "$1" | sed -E 's:/:+:g')"
 	TMPFILE="$(mktemp "/tmp/gophed_${2}_${sel}_$3.XXXXXXXXXXXXXXXXXXX")"
 	goto_url "$1" > "$TMPFILE"
 	while read -r line; do echo "$line"; done | ed -p "$PROMPT" "$TMPFILE" 
@@ -84,7 +84,7 @@ if [ "$script_name" = "g" ] || [ "$script_name" = "d" ]; then
 	PORT="$(printf '%s' "$LINE" | awk -F '	' '{ match($4,/[[:digit:]]+/); print substr($4,RSTART,RLENGTH) }')"
 
 	if [ "$script_name" = "g" ]; then
-		SEL="$(printf '%s' "$RESOURCE" | sed -r 's:/:+:g')"
+		SEL="$(printf '%s' "$RESOURCE" | sed -E 's:/:+:g')"
 		TMPFILE="$(mktemp "/tmp/gophed_${HOST}_${SEL}_$PORT.XXXXXXXXXXXXXXXXXXX")"
 		go "$RESOURCE" "$HOST" "$PORT" > "$TMPFILE"
 		while read -r line; do echo "$line"; done | ed -p "$PROMPT" "$TMPFILE"