Re: multiple callbacks

Raf Haesen:
 
> This works fine but at the same time I want to add another callback 
[...]
> How can I add another tagcount callback that inherits from 
> XM_CALLBACK_NUL?

Just inherit from XM_CALLBACKS_FILTER instead, call Precursor 
in the routines you redefine, and insert your filter in the 
pipe:
 
 create {XM_EIFFEL_PARSER} event_parser.make
 create {XM_TREE_CALLBACKS_PIPE}tree_pipe.make
 create {YOUR_CALLBACKS_FILTER} a_filter.set_next (tree_pipe.start)
 event_parser.set_callbacks (a_filter)

See XM_EVENT_COUNT_FILTER's source to see an example of a 
simple filter.

We could also have a Y-connector event filter that takes one 
input and has 2 outputs, but I think in your particular case 
a simple in-line filter is as good. I'll think about adding 
a dispatcher filter though (maybe with a list of output filters 
rather than fixed to 2).



To Post a message, send it to:   [email protected]
To Unsubscribe, send a blank message to: [email protected] 
Yahoo! Groups Links

<*> To visit your group on the web, go to:
     http://groups.yahoo.com/group/gobo-eiffel/

<*> To unsubscribe from this group, send an email to:
     [email protected]

<*> Your use of Yahoo! Groups is subject to:
     http://docs.yahoo.com/info/terms/