[ic] Filter sub routine not called

[interchange-users@interchange.redhat.com (Alexandra Birch)]

> That is not how to add a filter. It will be easier in the
> next version of Interchange, but for now a user cannot
> add filters in catalog.cfg.
> 
> I think the "textarea_put" filter would do what you want.

How can I add filters without touching the interchange libraries?
The Docs said I should create a Sub or GlobalSub but where do I put it?. 
Textarea_put wont do. I need to create a filter that leaves html tags alone but converts IC tags.

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Alexandra Birch
Trymedia Systems
965 10 77 71 
www.trymedia.com
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