adding support for custom $smarty.myVar variable

Hello, I'm working on formsess (formsess.sf.net, a smarty based form toolkit). It basically consists of a prefilter to create the form, a custom smarty class and an api to access the form data. I would like to add support for a $smarty.formsess (just like get, post..) variable to easily access all submitted data or validation errors of a form. As far as I see the only way to do this is to create a custom smarty compiler class and overwrite _compile_smarty_ref(). (i also thought about using a prefilter but that's even dirtier..) What do you think about that? Any other ideas how this could be done? Any help is appreciated. - david ps: please cc, i'm not on the list

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