46 lines
1.4 KiB
Plaintext
46 lines
1.4 KiB
Plaintext
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'\"
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'\" Copyright (c) 1993 The Regents of the University of California.
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'\" Copyright (c) 1994-1997 Sun Microsystems, Inc.
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'\"
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'\" See the file "license.terms" for information on usage and redistribution
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'\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
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'\"
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.TH rename n "" Tcl "Tcl Built-In Commands"
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.so man.macros
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.BS
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'\" Note: do not modify the .SH NAME line immediately below!
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.SH NAME
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rename \- Rename or delete a command
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.SH SYNOPSIS
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\fBrename \fIoldName newName\fR
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.BE
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.SH DESCRIPTION
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.PP
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Rename the command that used to be called \fIoldName\fR so that it
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is now called \fInewName\fR.
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If \fInewName\fR is an empty string then \fIoldName\fR is deleted.
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\fIoldName\fR and \fInewName\fR may include namespace qualifiers
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(names of containing namespaces).
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If a command is renamed into a different namespace,
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future invocations of it will execute in the new namespace.
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The \fBrename\fR command returns an empty string as result.
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.SH EXAMPLE
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.PP
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The \fBrename\fR command can be used to wrap the standard Tcl commands
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with your own monitoring machinery. For example, you might wish to
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count how often the \fBsource\fR command is called:
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.PP
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.CS
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\fBrename\fR ::source ::theRealSource
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set sourceCount 0
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proc ::source args {
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global sourceCount
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puts "called source for the [incr sourceCount]'th time"
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uplevel 1 ::theRealSource $args
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}
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.CE
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.SH "SEE ALSO"
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namespace(n), proc(n)
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.SH KEYWORDS
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command, delete, namespace, rename
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