49 lines
2.0 KiB
Plaintext
49 lines
2.0 KiB
Plaintext
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'\"
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'\" Copyright (c) 1993 The Regents of the University of California.
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'\" All rights reserved.
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'\"
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'\" Permission is hereby granted, without written agreement and without
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'\" license or royalty fees, to use, copy, modify, and distribute this
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'\" documentation for any purpose, provided that the above copyright
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'\" notice and the following two paragraphs appear in all copies.
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'\"
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'\" IN NO EVENT SHALL THE UNIVERSITY OF CALIFORNIA BE LIABLE TO ANY PARTY
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'\" FOR DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES
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'\" ARISING OUT OF THE USE OF THIS DOCUMENTATION, EVEN IF THE UNIVERSITY OF
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'\" CALIFORNIA HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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'\"
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'\" THE UNIVERSITY OF CALIFORNIA SPECIFICALLY DISCLAIMS ANY WARRANTIES,
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'\" INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
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'\" AND FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS
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'\" ON AN "AS IS" BASIS, AND THE UNIVERSITY OF CALIFORNIA HAS NO OBLIGATION TO
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'\" PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
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'\"
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'\" $Header: /user6/ouster/tcl/man/RCS/lappend.n,v 1.1 93/05/03 17:34:04 ouster Exp $ SPRITE (Berkeley)
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'\"
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.so man.macros
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.HS lappend tcl
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.BS
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'\" Note: do not modify the .SH NAME line immediately below!
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.SH NAME
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lappend \- Append list elements onto a variable
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.SH SYNOPSIS
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\fBlappend \fIvarName value \fR?\fIvalue value ...\fR?
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.BE
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.SH DESCRIPTION
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.PP
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This command treats the variable given by \fIvarName\fR as a list
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and appends each of the \fIvalue\fR arguments to that list as a separate
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element, with spaces between elements.
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If \fIvarName\fR doesn't exist, it is created as a list with elements
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given by the \fIvalue\fR arguments.
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\fBLappend\fR is similar to \fBappend\fR except that the \fIvalue\fRs
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are appended as list elements rather than raw text.
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This command provides a relatively efficient way to build up
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large lists. For example, ``\fBlappend a $b\fR'' is much
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more efficient than ``\fBset a [concat $a [list $b]]\fR'' when
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\fB$a\fR is long.
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.SH KEYWORDS
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append, element, list, variable
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