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'\"
'\" Copyright (c) 1993 The Regents of the University of California.
'\" Copyright (c) 1994-1996 Sun Microsystems, Inc.
'\" Copyright (c) 2001 Kevin B. Kenny <kennykb@acm.org>. All rights reserved.
'\"
'\" See the file "license.terms" for information on usage and redistribution
'\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
'\"
'\" RCS: @(#) $Id: llength.n,v 1.10.8.1 2008/03/26 20:08:53 dgp Exp $
'\"
.so man.macros
.TH llength n "" Tcl "Tcl Built-In Commands"
.BS
'\" Note: do not modify the .SH NAME line immediately below!
.SH NAME
llength \- Count the number of elements in a list
.SH SYNOPSIS
\fBllength \fIlist\fR
.BE
.SH DESCRIPTION
.PP
Treats \fIlist\fR as a list and returns a decimal string giving
the number of elements in it.
.SH EXAMPLES
The result is the number of elements:
.CS
% \fBllength\fR {a b c d e}
5
% \fBllength\fR {a b c}
3
% \fBllength\fR {}
0
.CE
.PP
Elements are not guaranteed to be exactly words in a dictionary sense
of course, especially when quoting is used:
.CS
% \fBllength\fR {a b {c d} e}
4
% \fBllength\fR {a b { } c d e}
6
.CE
.PP
An empty list is not necessarily an empty string:
.CS
% set var { }; puts "[string length $var],[\fBllength\fR $var]"
1,0
.CE
.SH "SEE ALSO"
list(n), lappend(n), lindex(n), linsert(n), lsearch(n),
lset(n), lsort(n), lrange(n), lreplace(n)
.SH KEYWORDS
element, list, length
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