From 772f20abb0a3a0979c440114bf3a1cff5b3cef03 Mon Sep 17 00:00:00 2001
From: cvpcs <root@cvpcs.org>
Date: Wed, 2 Jun 2010 11:02:31 -0500
Subject: initial import of bash 4.1

---
 examples/functions/pathfuncs | 45 ++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 45 insertions(+)
 create mode 100644 examples/functions/pathfuncs

(limited to 'examples/functions/pathfuncs')

diff --git a/examples/functions/pathfuncs b/examples/functions/pathfuncs
new file mode 100644
index 0000000..56fdca3
--- /dev/null
+++ b/examples/functions/pathfuncs
@@ -0,0 +1,45 @@
+#From: "Simon J. Gerraty" <sjg@zen.void.oz.au>
+#Message-Id: <199510091130.VAA01188@zen.void.oz.au>
+#Subject: Re: a shell idea?
+#Date: Mon, 09 Oct 1995 21:30:20 +1000
+
+
+# NAME:
+#	add_path.sh - add dir to path
+#
+# DESCRIPTION:
+#	These functions originated in /etc/profile and ksh.kshrc, but
+#	are more useful in a separate file.
+#
+# SEE ALSO:
+#	/etc/profile
+#
+# AUTHOR:
+#	Simon J. Gerraty <sjg@zen.void.oz.au>
+
+#	@(#)Copyright (c) 1991 Simon J. Gerraty
+#
+#	This file is provided in the hope that it will
+#	be of use.  There is absolutely NO WARRANTY.
+#	Permission to copy, redistribute or otherwise
+#	use this file is hereby granted provided that
+#	the above copyright notice and this notice are
+#	left intact.
+
+# is $1 missing from $2 (or PATH) ?
+no_path() {
+	eval "case :\$${2-PATH}: in *:$1:*) return 1;; *) return 0;; esac"
+}
+# if $1 exists and is not in path, append it
+add_path () {
+  [ -d ${1:-.} ] && no_path $* && eval ${2:-PATH}="\$${2:-PATH}:$1"
+}
+# if $1 exists and is not in path, prepend it
+pre_path () {
+  [ -d ${1:-.} ] && no_path $* && eval ${2:-PATH}="$1:\$${2:-PATH}"
+}
+# if $1 is in path, remove it
+del_path () {
+  no_path $* || eval ${2:-PATH}=`eval echo :'$'${2:-PATH}: |
+    sed -e "s;:$1:;:;g" -e "s;^:;;" -e "s;:\$;;"`
+}
-- 
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