From 6b83748946e9405bc9df946a44e776e4adcff867 Mon Sep 17 00:00:00 2001
From: Wayne Davison <wayned@users.sourceforge.net>
Date: Thu, 20 May 2004 22:23:11 +0000
Subject: [PATCH] Use the new history push/pop options to fc to save and
 restore the current history buffer.

---
 Functions/Misc/zcalc | 17 ++++-------------
 1 file changed, 4 insertions(+), 13 deletions(-)

diff --git a/Functions/Misc/zcalc b/Functions/Misc/zcalc
index 37e06557c..d416ade92 100644
--- a/Functions/Misc/zcalc
+++ b/Functions/Misc/zcalc
@@ -86,22 +86,13 @@
 emulate -L zsh
 setopt extendedglob
 
-# can't be local since required in EXIT trap
-zcalc_orighist=$HISTFILE
-local temphist=${TMPPREFIX}zcalc_hist.$$ SAVEHIST=$HISTSIZE
-HISTFILE=$temphist
-fc -W
-
-local HISTSIZE=0
-HISTSIZE=$SAVEHIST
-HISTFILE=~/.zcalc_history
-[[ -f $HISTFILE ]] && fc -R
+# push to our own history file
+fc -p ~/.zcalc_history
 
 zcalc_restore() {
     unfunction zcalc_restore
-    fc -W
-    HISTFILE=$zcalc_orighist
-    fc -R
+    # pop back to original history
+    fc -P
 }
 trap zcalc_restore HUP INT QUIT EXIT