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author | William Joye <wjoye@cfa.harvard.edu> | 2018-01-02 21:03:49 (GMT) |
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committer | William Joye <wjoye@cfa.harvard.edu> | 2018-01-02 21:03:49 (GMT) |
commit | 914501b5b992e7b6c7e0a4c958712a8ba9cab41c (patch) | |
tree | edbc059b9557d5fdb79e5a5c47889bc54708da53 /tcl8.6/doc/rename.n | |
parent | f88c190a01bc7f57e79dfaf91a3c0c48c2031549 (diff) | |
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upgrade to tcl/tk 8.6.8
Diffstat (limited to 'tcl8.6/doc/rename.n')
-rw-r--r-- | tcl8.6/doc/rename.n | 45 |
1 files changed, 45 insertions, 0 deletions
diff --git a/tcl8.6/doc/rename.n b/tcl8.6/doc/rename.n new file mode 100644 index 0000000..744bf5a --- /dev/null +++ b/tcl8.6/doc/rename.n @@ -0,0 +1,45 @@ +'\" +'\" Copyright (c) 1993 The Regents of the University of California. +'\" Copyright (c) 1994-1997 Sun Microsystems, Inc. +'\" +'\" See the file "license.terms" for information on usage and redistribution +'\" of this file, and for a DISCLAIMER OF ALL WARRANTIES. +'\" +.TH rename n "" Tcl "Tcl Built-In Commands" +.so man.macros +.BS +'\" Note: do not modify the .SH NAME line immediately below! +.SH NAME +rename \- Rename or delete a command +.SH SYNOPSIS +\fBrename \fIoldName newName\fR +.BE +.SH DESCRIPTION +.PP +Rename the command that used to be called \fIoldName\fR so that it +is now called \fInewName\fR. +If \fInewName\fR is an empty string then \fIoldName\fR is deleted. +\fIoldName\fR and \fInewName\fR may include namespace qualifiers +(names of containing namespaces). +If a command is renamed into a different namespace, +future invocations of it will execute in the new namespace. +The \fBrename\fR command returns an empty string as result. +.SH EXAMPLE +.PP +The \fBrename\fR command can be used to wrap the standard Tcl commands +with your own monitoring machinery. For example, you might wish to +count how often the \fBsource\fR command is called: +.PP +.CS +\fBrename\fR ::source ::theRealSource +set sourceCount 0 +proc ::source args { + global sourceCount + puts "called source for the [incr sourceCount]'th time" + uplevel 1 ::theRealSource $args +} +.CE +.SH "SEE ALSO" +namespace(n), proc(n) +.SH KEYWORDS +command, delete, namespace, rename |