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Under GNU General Public License
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concat(n) Tcl Built-In Commands concat(n)
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NAME
concat - Join lists together
SYNOPSIS
concat ?arg arg ...?
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DESCRIPTION
This command joins each of its arguments together with spaces after trimming leading and
trailing white-space from each of them. If all the arguments are lists, this has the same
effect as concatenating them into a single list. It permits any number of arguments; if
no args are supplied, the result is an empty string.
EXAMPLES
Although concat will concatenate lists, flattening them in the process (so giving the fol-
lowing interactive session):
% concat a b {c d e} {f {g h}}
a b c d e f {g h}
it will also concatenate things that are not lists, as can be seen from this session:
% concat " a b {c " d " e} f"
a b {c d e} f
Note also that the concatenation does not remove spaces from the middle of values, as can
be seen here:
% concat "a b c" { d e f }
a b c d e f
(i.e., there are three spaces between each of the a, the b and the c).
SEE ALSO
append(n), eval(n), join(n)
KEYWORDS
concatenate, join, lists
Tcl 8.3 concat(n)
Generated by $Id: phpMan.php,v 4.55 2007/09/05 04:42:51 chedong Exp $ Author: Che Dong
On Apache/2.4.6 (CentOS)
Under GNU General Public License
2025-06-23 22:10 @127.0.0.1 CrawledBy Wget/1.21.2