rotten news relay - comp.lang.tcl - Re: how to use diagram-viewer and the diagram pkg

Subject: how to use diagram-viewer and the diagram pkg
From: Mark Summerfield
Newsgroups: comp.lang.tcl
Date: Wed, 17 Jul 2024 07:33 UTC

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From: mark@qtrac.eu (Mark Summerfield)
Subject: how to use diagram-viewer and the diagram pkg
Newsgroups: comp.lang.tcl
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I would like to try out the diagram-viewer app and the diagram pkg.
I am using Tcl/Tk 9.0b2 on Linux.

Given file /tmp/a.dia (copied from the tclwiki):

box A
arrow "" 40
circle B
direction SE

I tried this at the command line:

$ wish9 ~/opt/tcl9/bin/diagram-viewer show /tmp/a.dia
Creating safe environment, please wait...
/home/mark/opt/tcl9/bin/diagram-viewer: can't find package diagram
$ wish9
% package require diagram
1

As you can see, diagram-viewer can't find the diagram package even though
it is there.

Nor can I find any other examples of the diagram language nor what file
extension one should use.

Subject: Re: how to use diagram-viewer and the diagram pkg
From: Mark Summerfield
Newsgroups: comp.lang.tcl
Date: Wed, 17 Jul 2024 07:35 UTC
References: 1

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From: mark@qtrac.eu (Mark Summerfield)
Subject: Re: how to use diagram-viewer and the diagram pkg
Newsgroups: comp.lang.tcl
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On Wed, 17 Jul 2024 07:33:22 +0000, Mark Summerfield wrote:

> I would like to try out the diagram-viewer app and the diagram pkg.
> I am using Tcl/Tk 9.0b2 on Linux.
[snip]
> As you can see, diagram-viewer can't find the diagram package even
> though it is there.
>
> Nor can I find any other examples of the diagram language nor what file
> extension one should use.

Sorry, keep forgetting that the Pan newsreader's editor eats (selected)
newlines:

The file /tmp/a.dia is (with no blank lines):

box A

arrow "" 40

circle B

direction SE

And the console interaction (again with no blank lines):

$ wish9 ~/opt/tcl9/bin/diagram-viewer show /tmp/a.dia

Creating safe environment, please wait...

/home/mark/opt/tcl9/bin/diagram-viewer: can't find package diagram

$ wish9

% package require diagram

Subject: Re: how to use diagram-viewer and the diagram pkg
From: Andreas Leitgeb
Newsgroups: comp.lang.tcl
Organization: A noiseless patient Spider
Date: Wed, 17 Jul 2024 08:15 UTC
References: 1 2

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From: avl@logic.at (Andreas Leitgeb)
Newsgroups: comp.lang.tcl
Subject: Re: how to use diagram-viewer and the diagram pkg
Date: Wed, 17 Jul 2024 08:15:36 -0000 (UTC)
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Mark Summerfield <mark@qtrac.eu> wrote:
> $ wish9 ~/opt/tcl9/bin/diagram-viewer show /tmp/a.dia
> Creating safe environment, please wait...
> /home/mark/opt/tcl9/bin/diagram-viewer: can't find package diagram
> $ wish9
> % package require diagram
> 1

The "Creating safe environment, please wait..." might be the key here.
Check what the diagram viewer does after emitting that line, and see
if you can still "package require diagram" in that context.

If the "safe environment" is related to a safe interpreter,
you might need to add more code to the diagram-viewer to
allow the safe interp to load that particular package.

If I had it in my head, I'd write it - I hope someone else
can describe the extra "magic" needed to enable a package
in a safe interp.

Subject: Re: how to use diagram-viewer and the diagram pkg
From: Harald Oehlmann
Newsgroups: comp.lang.tcl
Organization: A noiseless patient Spider
Date: Wed, 17 Jul 2024 11:16 UTC
References: 1 2 3

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From: wortkarg3@yahoo.com (Harald Oehlmann)
Newsgroups: comp.lang.tcl
Subject: Re: how to use diagram-viewer and the diagram pkg
Date: Wed, 17 Jul 2024 13:16:04 +0200
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Am 17.07.2024 um 10:15 schrieb Andreas Leitgeb:
> Mark Summerfield <mark@qtrac.eu> wrote:
>> $ wish9 ~/opt/tcl9/bin/diagram-viewer show /tmp/a.dia
>> Creating safe environment, please wait...
>> /home/mark/opt/tcl9/bin/diagram-viewer: can't find package diagram
>> $ wish9
>> % package require diagram
>> 1
>
> The "Creating safe environment, please wait..." might be the key here.
> Check what the diagram viewer does after emitting that line, and see
> if you can still "package require diagram" in that context.
>
> If the "safe environment" is related to a safe interpreter,
> you might need to add more code to the diagram-viewer to
> allow the safe interp to load that particular package.
>
> If I had it in my head, I'd write it - I hope someone else
> can describe the extra "magic" needed to enable a package
> in a safe interp.
>

May you identify the "pckIndex.tcl" file of the package and post it here?
It may contain code to exclude TCL9...

Take care,
Harald

Subject: Re: how to use diagram-viewer and the diagram pkg
From: Mark Summerfield
Newsgroups: comp.lang.tcl
Date: Fri, 19 Jul 2024 07:22 UTC
References: 1 2 3 4

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From: mark@qtrac.eu (Mark Summerfield)
Subject: Re: how to use diagram-viewer and the diagram pkg
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On Wed, 17 Jul 2024 13:16:04 +0200, Harald Oehlmann wrote:
[snip]
> May you identify the "pckIndex.tcl" file of the package and post it
> here?
> It may contain code to exclude TCL9...

I installed Tcl 9.0b2 in ~/opt/tcl9, then installed Tk 9.0b2 in the same
place then installed the trunk versions of Tcllib and Tklib using their
installers run using wish9 (my link to ~/opt/tcl9/bin/wish9.0).

The diagram-viewer was installed by this process in ~/opt/tcl9/bin and
that dir has no pkgIndex.tcl file.

In other words I just did a standard install.

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From: avl@logic.at (Andreas Leitgeb)
Newsgroups: comp.lang.tcl
Subject: Re: how to use diagram-viewer and the diagram pkg
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Harald Oehlmann <wortkarg3@yahoo.com> wrote:
> Am 17.07.2024 um 10:15 schrieb Andreas Leitgeb:
>> Mark Summerfield <mark@qtrac.eu> wrote:
>>> $ wish9 ~/opt/tcl9/bin/diagram-viewer show /tmp/a.dia
>>> Creating safe environment, please wait...
>>> /home/mark/opt/tcl9/bin/diagram-viewer: can't find package diagram
>>> $ wish9
>>> % package require diagram
>>> 1
>>
>> The "Creating safe environment, please wait..." might be the key here.
>> Check what the diagram viewer does after emitting that line, and see
>> if you can still "package require diagram" in that context.
>>
>> If the "safe environment" is related to a safe interpreter,
>> you might need to add more code to the diagram-viewer to
>> allow the safe interp to load that particular package.
>>
>> If I had it in my head, I'd write it - I hope someone else
>> can describe the extra "magic" needed to enable a package
>> in a safe interp.
>
> May you identify the "pckIndex.tcl" file of the package and post it here?
> It may contain code to exclude TCL9...

I think we can exclude that possibility, because the package apparently
does load successfully in an interactive wish9.

Mark, if you skipped a few post and just read the last one, consider
what I wrote about safe interpreters.

BOFH excuse #350: paradigm shift...without a clutch

comp / comp.lang.tcl / Re: how to use diagram-viewer and the diagram pkg

Subject	Author
how to use diagram-viewer and the diagram pkg	Mark Summerfield
Re: how to use diagram-viewer and the diagram pkg	Mark Summerfield
Re: how to use diagram-viewer and the diagram pkg	Andreas Leitgeb
Re: how to use diagram-viewer and the diagram pkg	Harald Oehlmann
Re: how to use diagram-viewer and the diagram pkg	Mark Summerfield
Re: how to use diagram-viewer and the diagram pkg	Andreas Leitgeb