diff options
Diffstat (limited to 'doc/global.n')
| -rw-r--r-- | doc/global.n | 15 |
1 files changed, 13 insertions, 2 deletions
diff --git a/doc/global.n b/doc/global.n index f8e502e..16fdfd0 100644 --- a/doc/global.n +++ b/doc/global.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: global.n,v 1.5 2004/04/28 13:11:33 msofer Exp $ +'\" RCS: @(#) $Id: global.n,v 1.6 2004/05/17 22:23:42 dkf Exp $ '\" .so man.macros .TH global n "" Tcl "Tcl Built-In Commands" @@ -31,7 +31,18 @@ will refer to the global variable by the same name. \fIvarname\fR is always treated as the name of a variable, not an array element. An error is returned if the name looks like an array element, such as \fBa(b)\fR. - +.SH EXAMPLE +This procedure accumulates the strings passed to it in a global +buffer, separated by newlines. It is useful for situations when you +want to build a message piece-by-piece (as if with \fBputs\fR) but +send that full message in a single piece (e.g. over a connection +opened with \fBsocket\fR or as part of a counted HTTP response). +.CS +proc accum {string} { + global accumulator + append accumulator $string \\n +} +.CE .SH "SEE ALSO" namespace(n), upvar(n), variable(n) |