[ic] Filter sub routine not called

[interchange-users@interchange.redhat.com (Jonathan Clark)]

> > 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.

See the filter tag reference page:
http://interchange.redhat.com/cgi-bin/ic/docfly.html?mv_arg=ictags04%2e28
particularly the example at the bottom.

Jonathan
Webmaint.