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Diffstat (limited to 'doc')
| -rw-r--r-- | doc/append.n | 12 |
1 files changed, 11 insertions, 1 deletions
diff --git a/doc/append.n b/doc/append.n index 5f1a3c7..d829c71 100644 --- a/doc/append.n +++ b/doc/append.n @@ -5,7 +5,7 @@ '\" See the file "license.terms" for information on usage and redistribution '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES. '\" -'\" RCS: @(#) $Id: append.n,v 1.4 2003/02/10 13:32:22 dkf Exp $ +'\" RCS: @(#) $Id: append.n,v 1.5 2004/05/18 21:13:40 dkf Exp $ '\" .so man.macros .TH append n "" Tcl "Tcl Built-In Commands" @@ -29,6 +29,16 @@ This command provides an efficient way to build up long variables incrementally. For example, ``\fBappend a $b\fR'' is much more efficient than ``\fBset a $a$b\fR'' if \fB$a\fR is long. +.SH EXAMPLE +Building a string of comma-separated numbers piecemeal using a loop. +.CS +set var 0 +for {set i 1} {$i<=10} {incr i} { + append var "," $i +} +puts $var +# Prints 0,1,2,3,4,5,6,7,8,9,10 +.CE .SH "SEE ALSO" concat(n), lappend(n) |