From 995c29e378b206dcd78a261ffd8a5fcd6bd3b5c5 Mon Sep 17 00:00:00 2001
From: Roberto Polverelli Monti <rpolverelli@gmail.com>
Date: Tue, 19 Jan 2021 10:29:46 +0100
Subject: [PATCH] more performant grepping

---
 .local/bin/rssadd | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/.local/bin/rssadd b/.local/bin/rssadd
index 56c265d1..fb60be88 100755
--- a/.local/bin/rssadd
+++ b/.local/bin/rssadd
@@ -3,8 +3,7 @@
 if echo "$1" | grep "https*://\S\+\.[A-Za-z]\+\S*" >/dev/null; then
 	url="$1"
 else
-	url="$(grep 'rel="self"' "$1" |
-		grep xml |
+	url="$(grep -Eom1 '<[^>]+(rel="self"|application/[a-z]+\+xml)[^>]+>' "$1" |
 		sed -E 's_^.*href="(https?://[^"]+)".*$_\1_')"
 
 	! grep "https*://\S\+\.[A-Za-z]\+\S*" <<<"$url" &&