llength.n
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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. 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 1.6.4.1 2004/10/27 12:52:40 dkf 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 fIlistfR
- .BE
- .SH DESCRIPTION
- .PP
- Treats fIlistfR 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
- % fBllengthfR {a b c d e}
- 5
- % fBllengthfR {a b c}
- 3
- % fBllengthfR {}
- 0
- .CE
- .PP
- Elements are not guaranteed to be exactly words in a dictionary sense
- of course, especially when quoting is used:
- .CS
- % fBllengthfR {a b {c d} e}
- 4
- % fBllengthfR {a b { } c d e}
- 6
- .CE
- .PP
- An empty list is not necessarily an empty string:
- .CS
- % set var { }; puts "[string length $var],[fBllengthfR $var]"
- 1,0
- .CE
- .SH "SEE ALSO"
- .VS 8.4
- list(n), lappend(n), lindex(n), linsert(n), lsearch(n),
- lset(n), lsort(n), lrange(n), lreplace(n)
- .VE
- .SH KEYWORDS
- element, list, length