Adding upstream version 5.1.upstream/5.1upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 56 insertions, 0 deletions

diff --git a/examples/functions/seq2 b/examples/functions/seq2
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+#
+#  Chet Ramey <chet.ramey@case.edu>
+#
+#  Copyright 1998 Chester Ramey
+#
+#   This program is free software; you can redistribute it and/or modify
+#   it under the terms of the GNU General Public License as published by
+#   the Free Software Foundation; either version 2, or (at your option)
+#   any later version.
+#
+#   TThis program is distributed in the hope that it will be useful,
+#   but WITHOUT ANY WARRANTY; without even the implied warranty of
+#   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+#   GNU General Public License for more details.
+#
+#   You should have received a copy of the GNU General Public License
+#   along with this program; if not, write to the Free Software Foundation,
+#   Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+
+# Generate a sequence from m to n, m defaults to 1.
+
+seq ()
+{
+	declare -i lo hi i	# makes local
+	local _SEQ INIT COMPARE STEP
+
+	case "$1" in
+	-r)	INIT='i=$hi _SEQ=""' COMPARE='let "i >= $lo"' STEP='let i-=1' ; shift ;;
+	*)	INIT='i=$lo _SEQ=""' COMPARE='let "i <= $hi"' STEP='let i+=1' ;;
+	esac
+
+	case $# in
+	1) lo=1 hi="$1" ;;
+	2) lo=$1 hi=$2 ;;
+	*) echo seq: usage: seq [-r] [low] high 1>&2 ; return 2 ;;
+	esac
+
+	# equivalent to the as-yet-unimplemented
+	# for (( "$INIT" ; "$COMPARE" ; "$STEP" )); do _SEQ="${_SEQ}$i "; done
+	eval "$INIT"
+	while eval "$COMPARE"; do
+		_SEQ="${_SEQ}$i "
+		eval "$STEP"
+	done
+	echo "${_SEQ# }"
+	return 0
+}
+
+# like the APL `iota' function (or at least how I remember it :-)
+iota()
+{
+	case $# in
+	1) seq 1 "$1"; return $?;;
+	*) echo "iota: usage: iota high" 1>&2; return 2;;
+	esac
+}