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Diffstat (limited to 'doc/llength.n')
| -rw-r--r-- | doc/llength.n | 40 |
1 files changed, 31 insertions, 9 deletions
diff --git a/doc/llength.n b/doc/llength.n index 68dd1d8..d3f9610 100644 --- a/doc/llength.n +++ b/doc/llength.n @@ -1,15 +1,13 @@ '\" '\" 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. +'\" 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 1.6 2001/11/14 23:38:39 hobbs Exp $ -'\" -.so man.macros .TH llength n "" Tcl "Tcl Built-In Commands" +.so man.macros .BS '\" Note: do not modify the .SH NAME line immediately below! .SH NAME @@ -17,17 +15,41 @@ 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 +.PP +The result is the number of elements: +.PP +.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: +.PP +.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: +.PP +.CS +% set var { }; puts "[string length $var],[\fBllength\fR $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 |