36 lines
1.2 KiB
Plaintext
36 lines
1.2 KiB
Plaintext
'\"
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'\" Copyright (c) 1993 The Regents of the University of California.
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'\" Copyright (c) 1994-1996 Sun Microsystems, Inc.
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'\"
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'\" See the file "license.terms" for information on usage and redistribution
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'\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
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'\"
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'\" SCCS: @(#) lappend.n 1.6 96/03/25 20:18:03
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'\"
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.so man.macros
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.TH lappend n "" Tcl "Tcl Built-In Commands"
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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 \fR?\fIvalue value 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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