loading a view from a variable

[eluser]Nir Gavish[/eluser]
i need to pre-process a view before it is loaded - that is: get it from file, manipulate it, and then load it as a view. while the $return param allows me to *post* process the view, there appears to be no mechanism in-place to *pre*process it. did anyone else encounter this need? what is the most elegant solution? thanks in advance.