'\" '\" Copyright (c) 1993 The Regents of the University of California. '\" Copyright (c) 1994-1996 Sun Microsystems, Inc. '\" '\" See the file "license.terms" for information on usage and redistribution '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES. '\" '\" RCS: @(#) $Id: lappend.n,v 1.2 2001/09/14 01:42:23 zlaski Exp $ '\" .so man.macros .TH lappend n "" Tcl "Tcl Built-In Commands" .BS '\" Note: do not modify the .SH NAME line immediately below! .SH NAME lappend \- Append list elements onto a variable .SH SYNOPSIS \fBlappend \fIvarName \fR?\fIvalue value value ...\fR? .BE .SH DESCRIPTION .PP This command treats the variable given by \fIvarName\fR as a list and appends each of the \fIvalue\fR arguments to that list as a separate element, with spaces between elements. If \fIvarName\fR doesn't exist, it is created as a list with elements given by the \fIvalue\fR arguments. \fBLappend\fR is similar to \fBappend\fR except that the \fIvalue\fRs are appended as list elements rather than raw text. This command provides a relatively efficient way to build up large lists. For example, ``\fBlappend a $b\fR'' is much more efficient than ``\fBset a [concat $a [list $b]]\fR'' when \fB$a\fR is long. .SH KEYWORDS append, element, list, variable