56 lines
1.3 KiB
Plaintext
56 lines
1.3 KiB
Plaintext
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'\"
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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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'\" Copyright (c) 2001 Kevin B. Kenny <kennykb@acm.org>. All rights reserved.
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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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.TH llength n "" Tcl "Tcl Built-In Commands"
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.so man.macros
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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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llength \- Count the number of elements in a list
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.SH SYNOPSIS
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\fBllength \fIlist\fR
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.BE
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.SH DESCRIPTION
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.PP
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Treats \fIlist\fR as a list and returns a decimal string giving
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the number of elements in it.
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.SH EXAMPLES
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.PP
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The result is the number of elements:
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.PP
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.CS
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% \fBllength\fR {a b c d e}
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5
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% \fBllength\fR {a b c}
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3
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% \fBllength\fR {}
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0
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.CE
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.PP
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Elements are not guaranteed to be exactly words in a dictionary sense
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of course, especially when quoting is used:
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.PP
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.CS
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% \fBllength\fR {a b {c d} e}
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4
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% \fBllength\fR {a b { } c d e}
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6
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.CE
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.PP
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An empty list is not necessarily an empty string:
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.PP
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.CS
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% set var { }; puts "[string length $var],[\fBllength\fR $var]"
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1,0
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.CE
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.SH "SEE ALSO"
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list(n), lappend(n), lindex(n), linsert(n), lsearch(n),
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lset(n), lsort(n), lrange(n), lreplace(n)
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.SH KEYWORDS
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element, list, length
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