--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/components/ksh93/ksh.kshrc	Mon Apr 23 08:30:27 2012 -0700
@@ -0,0 +1,62 @@
+#
+# Copyright 2009 Sun Microsystems, Inc.  All rights reserved.
+# Use is subject to license terms.
+#
+
+#
+# This file is sourced by interactive ksh93 shells before ${HOME}/.kshrc
+#
+
+# Enable "gmacs"+"multiline" editor mode if the user did not set an
+# input mode yet (for example via ${EDITOR}, ${VISUAL} or any
+# "set -o" flag)
+if [[ "$(set +o)" != ~(Er)--(gmacs|emacs|vi)( .*|) ]] ; then
+	set -o gmacs
+	# enable multiline input mode
+	set -o multiline
+	# enable globstar mode (match subdirs with **/)
+	set -o globstar
+fi
+
+# Set a default prompt (<username>@<hostname>:<path><"($|#) ">) if
+# then variable does not exist in the environment.
+#
+# Algorithm:
+# 1. Define "ellipsis", either Unicode #2026 for unicode locales
+# and "..." otherwise
+# ([[ "${LC_ALL}/${LANG}" = ~(Elr)(.*UTF-8/.*|/.*UTF-8) ]]
+# ensures that the pattern matches the leftmost sequence
+# containing *.UTF-8, allowing to match either LC_ALL or
+# LANG when LC_ALL is not set)
+# 2. If PWD is within HOME replace value of HOME with '~'
+# If the PWD is longer than 30 charatcers shorten it to 30 chars
+# print '#' for user "root" and '$' for normal users
+# Notes:
+# - printf "%*s\r%s" COLUMNS "") # is used at the beginning to
+#   work around a bug in the "multiline" handling code which
+#   causes the shell to override its own prompt when the edit
+#   line overflows (this happens if the terminal cursor
+#   position is not 0 when PS1 is printed).
+# - PS1 will initially be empty until either...
+#   a) ... someone sets the variable
+#       or
+#   b) ... the prompt is displayed for the first time (default is
+#     '$ ' for normal users and '# ' for user "root")
+# - The statement below will not work if someone sources /etc/ksh.kshrc
+#   unless PS1 gets "unset" first.
+# - Make sure to use absolute paths (e.g. /usr/bin/hostname) to make
+#   sure PS1 works in cases where PATH does not contain /usr/bin/
+if [[ "$(set)" != ~(E)PS1= && "${PS1}" == '' ]] ; then
+	PS1='$(set +o xtrace +o errexit
+                printf "%*s\r%s" COLUMNS ""
+                printf "%s@%s:" "${LOGNAME}" "$(/usr/bin/hostname)"
+		ellip="${
+			[[ "${LC_ALL}/${LANG}" == ~(Elr)(.*UTF-8/.*|/.*UTF-8) ]] &&
+				printf "\u[2026]\n" || print "..." ; }"
+		p="${PWD/~(El)${HOME}/\~}"
+		(( ${#p} > 30 )) &&
+			print -r -n -- "${ellip}${p:${#p}-30:30}" ||
+			print -r -n -- "${p}"
+		[[ "${LOGNAME}" == "root" ]] && print -n "# " || print -n "\$ "
+		)'
+fi