[Xotcl] Question on [eval] method

Kristoffer Lawson setok at fishpool.com
Thu Sep 2 18:58:07 CEST 2004

It states that object-local variables are accessible as normal Tcl 
variables inside the script, but what about methods? I noticed the 

% package require XOTcl
% ob proc pomous {} {puts pomous}
% ob eval pomous
% xotcl::Class JOu
% JOu instproc uoah {} {puts jeah}
% JOu ob
% ob eval uoah
invalid command name "uoah"

Is that guaranteed to work at all? Is there any proper way to get what I 
want to do?

The reason I'm doing this is because I'm implementing a type of binary 
reading command which looks something like this:

buynary::scan $clusterDat {
     option endian little

     format {
 	object root {
 	    short objNum
 	    short $objNum objIDs

 	object * children {
 	    short 3 cellID

 	    short addObjNum
 	    short $addObjNum addObjIDs

 	    short rmObjNum
 	    short $rmObjNum rmObjIDs

It uses XOTcl to build a representation of the binary data as objects. I 
made a version which parses the format manually, but for performance 
reasons I'd like Tcl to do that. Ie. to have, in a particular context, 
commands such as 'format', 'short', 'object' etc. Then I could just [eval] 
the whole nonsense and get all the performance benefits that has to offer.

One could always do this using namespaces, but that would be really 
annoying as I've started off with XOTcl for this.

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

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