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From: Matthew Dodwell <mjd_at_orcaspirit.co.uk>
Date: Fri, 3 Feb 2006 11:21:11 -0000

Thanks - I'll give that a go.

Matthew

-----Original Message-----
From: xotcl-bounces_at_alice.wu-wien.ac.at
[mailto:xotcl-bounces_at_alice.wu-wien.ac.at]On Behalf Of Neophytos
Demetriou
Sent: 02 February 2006 19:48
To: xotcl_at_alice.wu-wien.ac.at
Subject: Re: [Xotcl] Ordering of Children


Matthew Dodwell wrote:
> MemoryLineController instproc AddNode {name} {
> eval GUINode [self]::[my autoname gNode%02d] -DisplayName {$name}
> }

* Replace the body of addNode as follows:

        my lappend __children [eval GUINode ...etc... ]

    and [my info children *gNode*] in CreateTreeview as follows:

        [my set __children]

OR

* Use an OrderedComposite class that does it for you. You will either
have to mix it in or define it as one of the superclasses of
MemoryLineController, i.e.:

        Class MemoryLineController -superclass OrderedComposite


Class OrderedComposite

OrderedComposite instproc children {} {
   set children [expr {[my exists __children] ? [my set __children] : ""}]
   return $children
}
OrderedComposite instproc add obj {
   my lappend __children $obj
   $obj set __parent [self]
}


Best,
Neophytos
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From: <MichaelL_at_frogware.com>
Date: Mon, 15 Nov 2004 11:02:56 -0500

> One other thought... have you tried explicitly namespace scoping
> your object... I know that there were some namespace issues with the
> early 1.3 series.
>
> try:
> TestA ::a
> ::a x 1

Yahoo! Brilliant! "TestA ::a" did the trick. Thanks.

From: Gustaf Neumann <neumann_at_wu-wien.ac.at>
Date: Wed, 16 Mar 2011 06:29:58 +0100

Dear Victor,

i don't think, nx/xotcl should brace a scalar return values.
Look at plain Tcl:
Tcl does not brace a string with a space either:

% set x "a b"
a b

For what reason should nx/xotcl do it? There are many other
commands in nx, doing the same, such as e.g. "create"

% nx::Object create "a b"
::a b
% nx::Object create "a b::c d"
::a b::c d
% nx::Object create "a b::e"
::a b::e

... and therefore "info parent" has no reason to add braces:

% "a b::c d" info parent
::a b

In situations, where a list is returned (potentially
multiple elements) the elements have to be are proper list
elements and therefore these elements are escaped, even if
the result is a list with a single element:

% "a b" info children
{::a b::e} {::a b::c d}

This is the same in plain Tcl as well: "info commands"
returns a list of elements:

% info commands "::a *"
{::a b}
% info commands "::a b::*"
{::a b::e} {::a b::c d}

again, the command as a scalar:

% lindex [info commands "::a b::*"] 0
::a b::e
%

So, the rule is: list are properly escaped, scalars are the
plain values.

all the best
-gustaf

On 16.03.11 01:48, Victor Mayevski wrote:
> Hello Gustaf,
>
> I encountered an issue with [info parent] and where parent's name
> contains a space. While [info children] behaves correctly by returning
> a list:
> {::pa rent::child}
> [info parent] just returns the name:
> ::pa rent
> instead of:
> {::pa rent}
> This is fixable by using [list [info parent]] but I wonder if that
> should be the default behavior in NX anyway?
>
> Thanks,
>
> Victor

From: Aamer Akhter <aakhter_at_gmail.com>
Date: Sun, 27 Mar 2005 03:17:22 -0500

I just tried this with 1.3.6 and it appears to be working. Sort of
related question, how do people handle the swizzling/unswizzling of
autogenerated object names (eg ::xotcl__#0) when restoring an object?

On Sun, 27 Mar 2005 02:17:43 -0500, Aamer Akhter <aakhter_at_gmail.com> wrote:
> Hello,
>
> I seem to be missing something basic in the usage of Serializer:
>
> package require XOTcl
> namespace import ::xotcl::*
> package require xotcl::serializer
> set a [Object new]
> $a set b hello
> Serializer deepSerialize $a
>
> the last command doesn't seem to return anything. I had expected the
> creation and config code for $a. What am I missing?
>
> --
> Aamer Akhter / aakhter_at_gmail.com
>

-- 
Aamer Akhter / aakhter_at_gmail.com

From: Kulcsár Ferenc <crusader_at_netbsd.hu>
Date: Sat, 9 Jun 2012 10:00:35 +0200

Dear list,

I'm playing with the example codes placed here: http://next-scripting.org/xowiki/getstart but the XOTcl example isn't working as expected.
I have the following error:

./tclsh8.5 proba1.tcl
::g: unable to dispatch method 'parameter' during '::g.parameter'
    ::g ::xotcl::Object->residualargs
    ::Greeter ::xotcl::Class->create
    invoked from within
"Greeter create g -parameter Anna"
    (file "proba1.tcl" line 13)

the code in the proba1.tcl file is:

package require XOTcl

xotcl::Class create Greeter -parameter name
Greeter instproc say_hello {} {
  my instvar name
  puts "Welcome $name!"
}
Greeter instproc say_bye {} {
  my instvar name
  puts "Goodbye $name!"
}

Greeter create g -parameter Anna

g say_hello

The nx version is working well.

Any hints are appreciated.

TIA,

feri

P.s.: The nsf2.0b3 and git versions display the same error.

-- 
Kulcsár Ferenc <crusader_at_netbsd.hu>

From: Kristoffer Lawson <setok_at_fishpool.com>
Date: Wed, 1 Feb 2006 15:54:10 +0200

When XOTcl exits, it seems that the [destroy] method is called on all
objects. The first question is whether this is wise .. possibly. The
problem is I would like to build a transparent layer for persistence
storage which could be applied to a wide range of applications. The
problem naturally is that the objects in the persistence storage get
destroyed when the application exits :-)

            / http://www.fishpool.com/~setok/

From: Gustaf Neumann <neumann_at_wu-wien.ac.at>
Date: Wed, 01 Mar 2006 10:48:04 +0100

Murr, Florian schrieb:
> In XOTcl (1.3.8) there seems to be no initialisation of parameters
> during dynamic class change.
>
this is intended behavior. when an object changes its class, it is not
clear
that someone want's to re-initialize variables, etc.. btw, there is a
similar situation,
when mixining-in classes with parameter definitions.
> See code below: a1 and a2 behave differently.
>
they don't behave differently on themselves, you are doing different
things there.
certainly, when you call a method setting an instvar, it is afterwards
there,
if you don't call it, its not there.

I think, you question is: how can i get the default values from parameters
set, when i change dynamically the class. The following definition
helps you with that:

=============================
Object instmixin add \
    [Class new -instproc class args {next; ::xotcl::Class::Parameter
searchDefaults [self]}]
=============================

btw, you can get rid of the string-map-INFO business by using

   ...
   package require xotcl::trace
   ...
   A instproc pp {} { my showVars }
   ...

hope this helps
-gustaf neumann

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From: Kristoffer Lawson <setok_at_scred.com>
Date: Thu, 5 Aug 2010 18:57:17 +0300

I've now also documented the issue and the solution I'm using on Tcl's Wiki, for reference:

http://wiki.tcl.tk/26791

Feel free to disagree but I wanted that security in my code :-)

-- 
Kristoffer Lawson, Co-Founder, Scred // http://www.scred.com/

From: Andreas Kupries <andreask_at_activestate.com>
Date: Mon, 15 Oct 2012 10:47:15 -0700

19th Annual Tcl/Tk Conference (Tcl'2012)
http://www.tcl.tk/community/tcl2012/

November 12 - 16, 2012
Sessions:
    National Museum of Health and Medicine Chicago
    175 W. Washington
    Chicago, IL 60602

Rooms:
    Holiday Inn Chicago Mart Plaza
    350 West Mart Center Drive
    Chicago, Illinois, USA

Map/Transport:
    https://maps.google.com/maps/ms?msid=204739899073144451536.0004c144222a9036c99f6&msa=0&ll=41.885266,-87.633734&spn=0.008443,0.018818
    http://wiki.tcl.tk/28843#pagetoca7e55932


Hello all.

This is a reminder that the offer of reduced rates for rooms at the
conference hotel expires on October 20, i.e. at the end of this week.

        Book Now! (if you haven't already).

And talk to us should you run into trouble with the Hotel claiming to
be sold out already before the deadline.

Of course registration for the Conference is still open at

        http://www.tcl.tk/community/tcl2012/reg.html

To book a room at the conference hotel at reduced rates please follow
the instructions on that page.

Our schedule can be found at

        http://www.tcl.tk/community/tcl2012/schedule.html

Conference Committee

Clif Flynt Noumena Corp General Chair, Website Admin
Andreas Kupries ActiveState Software Inc. Program Chair
Cyndy Lilagan Nat. Museum of Health & Medicine, Chicago Site/Facilities Chair
Arjen Markus Deltares
Brian Griffin Mentor Graphics
Donal Fellows University of Manchester
Gerald Lester KnG Consulting, LLC
Jeffrey Hobbs ActiveState Software Inc.
Kevin Kenny GE Global Research Center
Larry Virden
Mike Doyle National Museum of Health & Medicine, Chicago
Ron Fox NSCL/FRIB Michigan State University
Steve Landers Digital Smarties

Contact Information tclconference_at_googlegroups.com


Tcl'2012 would like to thank those who are sponsoring the conference:

ActiveState Software Inc.
Buonacorsi Foundation
Mentor Graphics
Noumena Corp.
SR Technology
Tcl Community Association