From a11b3078d41e36fbdbab3f1773896a1d5c07cb15 Mon Sep 17 00:00:00 2001
From: Iain Patterson <me@iain.cx>
Date: Mon, 22 Oct 2018 13:31:43 +0100
Subject: [PATCH] Some ps1 state variables need wider scope.

---
 .profile.d/ps1.bashrc | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/.profile.d/ps1.bashrc b/.profile.d/ps1.bashrc
index e7d3658..80ad1da 100644
--- a/.profile.d/ps1.bashrc
+++ b/.profile.d/ps1.bashrc
@@ -131,7 +131,7 @@ function __ps1_colour_for() {
   local colour=
   local ret=
   for colour in "${1}_colour${__ps1_colours}" "${1}_colour"; do
-    ret=$(eval echo -n "\$$colour")
+    eval "export ret=\$$colour"
     [ -n "$ret" ] && break
   done
   echo -n $ret
@@ -140,7 +140,7 @@ function __ps1_colour_for() {
 function __ps1_prefix() {
   local var=\$${2#\$}
   local prefix=${__ps1_all%$var*}
-  local all="$(eval echo $prefix)"
+  eval "all=\$$prefix"
   [ "${all/1/}" = "$all" ] || echo -n " "
   return $1
 }
@@ -299,7 +299,7 @@ function prompt() {
   fi
 
   what="$(echo $2 | env LANG= LC_ALL= LC_CTYPE= tr '[:upper:]' '[:lower:]')"
-  eval __ps1_$what=$action
+  eval "__ps1_$what=$action"
 }
 
 __ps1
-- 
2.20.1