diff options
Diffstat (limited to 'doc/unknown.n')
| -rw-r--r-- | doc/unknown.n | 9 |
1 files changed, 3 insertions, 6 deletions
diff --git a/doc/unknown.n b/doc/unknown.n index 5b6f41e..c0fab20 100644 --- a/doc/unknown.n +++ b/doc/unknown.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: unknown.n,v 1.7 2006/11/03 00:34:52 hobbs Exp $ +'\" RCS: @(#) $Id: unknown.n,v 1.8 2007/10/29 01:42:19 dkf Exp $ '\" .so man.macros .TH unknown n "" Tcl "Tcl Built-In Commands" @@ -16,11 +16,10 @@ unknown \- Handle attempts to use non-existent commands .SH SYNOPSIS \fBunknown \fIcmdName \fR?\fIarg arg ...\fR? .BE - .SH DESCRIPTION .PP This command is invoked by the Tcl interpreter whenever a script -tries to invoke a command that doesn't exist. The default implementation +tries to invoke a command that does not exist. The default implementation of \fBunknown\fR is a library procedure defined when Tcl initializes an interpreter. You can override the default \fBunknown\fR to change its functionality, or you can register a new handler for individual namespaces @@ -54,7 +53,7 @@ If the auto-load fails then \fBunknown\fR calls \fBauto_execok\fR to see if there is an executable file by the name \fIcmd\fR. If so, it invokes the Tcl \fBexec\fR command with \fIcmd\fR and all the \fIargs\fR as arguments. -If \fIcmd\fR can't be auto-executed, \fBunknown\fR checks to +If \fIcmd\fR cannot be auto-executed, \fBunknown\fR checks to see if the command was invoked at top-level and outside of any script. If so, then \fBunknown\fR takes two additional steps. First, it sees if \fIcmd\fR has one of the following three forms: @@ -88,9 +87,7 @@ proc \fBunknown\fR args { uplevel 1 [list _original_unknown {*}$args] } .CE - .SH "SEE ALSO" info(n), proc(n), interp(n), library(n), namespace(n) - .SH KEYWORDS error, non-existent command |