OpenACS

 form-constraints together with fc_encode and fc_decode

- new method FormField->has_instance_variable to check

 whether the formfield or a component has a certain

 variable set to a certain value (used to detect,

 if e.g. a compound form field contains a wym-weditor)

- new method FormField->process_user_input to

 iterate over formfields before these are stored

- new method CompoundField->create_components to

 factor out common code

- new method CompoundField->get_named_sub_component

 to ease access of subcomponents

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