Complex HTML forms

[Diez B. Roggisch]

George Sakkis schrieb:
> I'd like to gather advice and links to any existing solutions (e.g.
> libraries, frameworks, design patterns) on general ways of writing
> complex web forms, as opposed to the typical {name:value} flat model.
> A particular case of what I mean by complex is hierarchical forms. For
> instance, a form that consists of a select list widget, where each
> item of the list activates a distinct set of other widgets. Think for
> example of a web frontend to CSV or SVN options and commands, where
> each command has its own suboptions. The suboptions are hidden (or
> even inexistent) until the user selects the specific command, and only
> then they appear (typically by Javascript). When the form is
> submitted, the selected options are passed in the server in some form
> that preserves the hierarchy, i.e. not as a flat dict. Is there
> anything close to such a beast around ?

formencode, which is heavily used in TurboGears. The dynamic parts 
though you have to code yourself - but using mochikit, this is easy as 
cake...

Diez