Hi Massimo,
AFAIK, info is implemented as an ensemble.
You can add subcommands just like that.
I am not sure to which TCL version this is true...
-Harald
Am 14.02.2016 um 23:51 schrieb Massimo Manghi:
> Hi
>
> I'm trying to find a solution to the existing problem with
>
> [info script]
>
> that doesn't return meaningful information with mod_rivet but I hit a
> problem that perhaps demands deeper insights into Tcl internals.
>
> As a first step I decided to filter every call to [::info ...] by
> renaming the core command and then defining our own ::info procedure. As
> such the following should work as a transparent replacement
>
> rename ::info ::Rivet::tclcore_info
> proc ::info {cmd args} {
>
> return [::Rivet::tclcore_info $cmd {*}$args]
>
> }
>
> I separated the fist argument because more expressive, it follows the
> command syntactical structure and it should make natural to execute the
> test
>
> if { $cmd=="script" } { ...}
>
> in order to return meaningful information. The ::Rivet namespace is
> meant for Rivet internal usage and it's not documented.
>
> Calling [info <option> ...] in a script or rivet template results in a
> weird error though
>
> unknown or ambiguous subcommand "exists": must be add, clicks, format,
> microseconds, milliseconds, scan, or seconds
> while executing
> "info exists some_sort_of_variable"
> (in namespace eval "::request" script line 10)
> invoked from within
> "namespace eval request {
>
> which seems to suggests I've somehow tampered with some table of
> commands and info got replaced by [clock...]: anyone has suggestions on
> how to properly and safely rename core commands?
>
> -- Massimo
>
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