From dc5c9e107c08213e05adc0527bd1c5a9750bb650 Mon Sep 17 00:00:00 2001
From: John D Pell <John+git@gaelicWizard.net>
Date: Sat, 9 Oct 2021 10:16:02 -0700
Subject: [PATCH] plugin/man: simplify

Don't overwrite variables that the user has already set.

plugins/man: unbound `$LESS`
---
 plugins/available/man.plugin.bash | 16 +++++++++-------
 1 file changed, 9 insertions(+), 7 deletions(-)

diff --git a/plugins/available/man.plugin.bash b/plugins/available/man.plugin.bash
index 282e2097..b981565f 100644
--- a/plugins/available/man.plugin.bash
+++ b/plugins/available/man.plugin.bash
@@ -1,12 +1,14 @@
 # shellcheck shell=bash
 about-plugin 'colorize man pages for better readability'
 
-export LESS_TERMCAP_mb=$'\e[1;32m'
-export LESS_TERMCAP_md=$'\e[1;32m'
-export LESS_TERMCAP_me=$'\e[0m'
-export LESS_TERMCAP_se=$'\e[0m'
-export LESS_TERMCAP_so=$'\e[01;33m'
-export LESS_TERMCAP_ue=$'\e[0m'
-export LESS_TERMCAP_us=$'\e[1;4;31m'
+: "${LESS_TERMCAP_mb:=$'\e[1;32m'}"
+: "${LESS_TERMCAP_md:=$'\e[1;32m'}"
+: "${LESS_TERMCAP_me:=$'\e[0m'}"
+: "${LESS_TERMCAP_se:=$'\e[0m'}"
+: "${LESS_TERMCAP_so:=$'\e[01;33m'}"
+: "${LESS_TERMCAP_ue:=$'\e[0m'}"
+: "${LESS_TERMCAP_us:=$'\e[1;4;31m'}"
 
+: "${LESS:=}"
+export "${!LESS_TERMCAP@}"
 export LESS="R${LESS#-}"