Copyright (c) 1993 The Regents of the University of California.
Copyright (c) 1994-1996 Sun Microsystems, Inc.
Copyright (c) 2001 Kevin B. Kenny. All rights reserved.

See the file "license.terms" for information on usage and redistribution
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RCS: @(#) $Id: lappend.n,v 1.6.4.1 2004/10/27 12:52:40 dkf Exp $

.so man.macros S Note: do not modify the .SH NAME line immediately below!
lappend - Append list elements onto a variable lappend varName ?value value value ...? E

This command treats the variable given by varName as a list and appends each of the value arguments to that list as a separate element, with spaces between elements. If varName doesn't exist, it is created as a list with elements given by the value arguments. Lappend is similar to append except that the values are appended as list elements rather than raw text. This command provides a relatively efficient way to build up large lists. For example, ``lappend a $b'' is much more efficient than ``set a [concat $a [list $b]]'' when $a is long.

Using lappend to build up a list of numbers. .CS % set var 1 1 % lappend var 2 1 2 % lappend var 3 4 5 1 2 3 4 5 .CE list(n), lindex(n), linsert(n), llength(n), .VS 8.4 lset(n) .VE lsort(n), lrange(n) append, element, list, variable