From 17750477e4a423b970dc393a2506901811e0bc38 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Olivier=20Mengu=C3=A9?= <dolmen@cpan.org>
Date: Wed, 9 Jan 2013 00:47:05 +0100
Subject: [PATCH] Optimize _lp_battery: no sed

---
 liquidprompt | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/liquidprompt b/liquidprompt
index e5a1c2e..98c46d1 100755
--- a/liquidprompt
+++ b/liquidprompt
@@ -746,8 +746,10 @@ _lp_battery()
     [[ "$LP_ENABLE_BATT" != 1 ]] && return
     local acpi
     acpi="$(acpi --battery 2>/dev/null)"
-    local bat
-    bat=$( echo $acpi | sed "s/^Battery .*, \([0-9]*\)%.*$/\1/")
+    # Extract the battery load value in percent
+    # First, remove the beginning of the line...
+    local bat="${acpi#Battery *, }"
+    bat="${bat%%%*}" # remove everything starting at '%'
 
     if [[ -z "${bat}" ]] ; then
         # not battery level found