On Saturday, July 30, 2005 at 9:02:07 AM UTC+8, Michael A. Cleverly wrote:
> On Fri, 29 Jul 2005, Aric Bills wrote:
> > By the way, it is possible to define a Tcl procedure whose name is the empty
> > string. Probably not a good idea,
> I use this idiom with tdom fairly regularly. It allows me to write
> something like:
> [[$node selectNodes $xpath] someMethod]
> where $xpath is an xpath expression that might return 0 or 1 nodes. To
> avoid having to explicitly deal with the case where no nodes would be
> returned I define:
> proc "" args {}
> Michael

I tried using the proc "" args {}
Now I don't see any error, but this function is breaking the flow of my program. Should I place any statment that continues the execution? I tried return "none" but of no use.

Jayashree Peluri <shreepeluri@gmail.com> wrote:
> On Saturday, July 30, 2005 at 9:02:07 AM UTC+8, Michael A. Cleverly wrote:
>> On Fri, 29 Jul 2005, Aric Bills wrote:
>> > By the way, it is possible to define a Tcl procedure whose name is the empty
>> > string. Probably not a good idea,
>> I use this idiom with tdom fairly regularly. It allows me to write
>> something like:
>> [[$node selectNodes $xpath] someMethod]
>> where $xpath is an xpath expression that might return 0 or 1 nodes. To
>> avoid having to explicitly deal with the case where no nodes would be
>> returned I define:
>> proc "" args {}
>> Michael
>
> I tried using the proc "" args {}
> Now I don't see any error, but this function is breaking the flow of
> my program. Should I place any statment that continues the
> execution? I tried return "none" but of no use.

Wow, resurrecting a 17 year old thread.....

Please explain how "this function is breaking the flow of my program".
That statement makes no sense.

On Tuesday, November 8, 2022 at 11:48:56 AM UTC+8, Rich wrote:
> Jayashree Peluri <shree...@gmail.com> wrote:
> > On Saturday, July 30, 2005 at 9:02:07 AM UTC+8, Michael A. Cleverly wrote:
> >> On Fri, 29 Jul 2005, Aric Bills wrote:
> >> > By the way, it is possible to define a Tcl procedure whose name is the empty
> >> > string. Probably not a good idea,
> >> I use this idiom with tdom fairly regularly. It allows me to write
> >> something like:
> >> [[$node selectNodes $xpath] someMethod]
> >> where $xpath is an xpath expression that might return 0 or 1 nodes. To
> >> avoid having to explicitly deal with the case where no nodes would be
> >> returned I define:
> >> proc "" args {}
> >> Michael
> >
> > I tried using the proc "" args {}
> > Now I don't see any error, but this function is breaking the flow of
> > my program. Should I place any statment that continues the
> > execution? I tried return "none" but of no use.
> Wow, resurrecting a 17 year old thread.....
>
> Please explain how "this function is breaking the flow of my program".
> That statement makes no sense.
Sorry for waking up the dead 😅 Looks like the program restarted because of another issue. Resolved it now!
I confirm this 'proc "" args {} ' is working wonders! :) Thanks for prompt reply making me reassess the error!

On Tuesday, November 8, 2022 at 7:06:02 AM UTC+1, shree wrote:
> On Tuesday, November 8, 2022 at 11:48:56 AM UTC+8, Rich wrote:
> > Jayashree wrote:
> > > On Saturday, July 30, 2005 at 9:02:07 AM UTC+8, Michael A. Cleverly wrote:
> > >> On Fri, 29 Jul 2005, Aric Bills wrote:
> > >> > By the way, it is possible to define a Tcl procedure whose name is the empty
> > >> > string. Probably not a good idea,
> > >> I use this idiom with tdom fairly regularly. It allows me to write
> > >> something like:
> > >> [[$node selectNodes $xpath] someMethod]
> > >> where $xpath is an xpath expression that might return 0 or 1 nodes. To
> > >> avoid having to explicitly deal with the case where no nodes would be
> > >> returned I define:
> > >> proc "" args {}
> > >> Michael
> > >
> > > I tried using the proc "" args {}
> > > Now I don't see any error, but this function is breaking the flow of
> > > my program. Should I place any statment that continues the
> > > execution? I tried return "none" but of no use.
> > Wow, resurrecting a 17 year old thread.....
> >
> > Please explain how "this function is breaking the flow of my program".
> > That statement makes no sense.
> Sorry for waking up the dead 😅 Looks like the program restarted because of another issue. Resolved it now!
> I confirm this 'proc "" args {} ' is working wonders! :) Thanks for prompt reply making me reassess the error!

Imo, the current level of divine support is unhealthy - you want more or less of it, depending on your belie...ehm requirements.

Less wonders: You are maybe covering an issue, and you are not even logging it. Is "do nothing" an expected result of transform_line?
More wonders: If transform_line may return nothing (or a command with args), then you actually want <code>{*}[transform_line ...]</code> in modern Tcl..