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author | William Joye <wjoye@cfa.harvard.edu> | 2017-10-17 19:52:11 (GMT) |
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committer | William Joye <wjoye@cfa.harvard.edu> | 2017-10-17 19:52:11 (GMT) |
commit | da0aaf36f00f649cd910b1bcb972b4ad476cd5fd (patch) | |
tree | 3d5215355c39587ed375451b86b7f9962f739a5f /tcl8.6/doc/llength.n | |
parent | 9bfb1e415c87790341c6a3520b081292fcdb058b (diff) | |
parent | c8bc058c566bbcbcd23e732197d64fecc739008f (diff) | |
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Merge commit 'c8bc058c566bbcbcd23e732197d64fecc739008f' as 'tcl8.6'
Diffstat (limited to 'tcl8.6/doc/llength.n')
-rw-r--r-- | tcl8.6/doc/llength.n | 55 |
1 files changed, 55 insertions, 0 deletions
diff --git a/tcl8.6/doc/llength.n b/tcl8.6/doc/llength.n new file mode 100644 index 0000000..79f93c0 --- /dev/null +++ b/tcl8.6/doc/llength.n @@ -0,0 +1,55 @@ +'\" +'\" 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. +'\" +.TH llength n "" Tcl "Tcl Built-In Commands" +.so man.macros +.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 +.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" +list(n), lappend(n), lindex(n), linsert(n), lsearch(n), +lset(n), lsort(n), lrange(n), lreplace(n) +.SH KEYWORDS +element, list, length |