Ola, Simon, ad_form's cool but remember ... it's just Tcl :) I can't banish the standard Tcl rules for parsing input just by writing a proc!
ad_form_new_p is a new proc written by Tilmann that works when there's a error in form validation, which confuses the simpler "info exists" test. So, yes, the doc is out of date on this point.
For a complete list of datatypes, go to acs-templating/tcl and do
grep ::validate *.tcl
For a complete list of widgets, to go acs-templating/tcl and do
grep ::widget widget-procs.tcl
(ad_form knows nothing about widgets and datatypes beyond what the form templating system implements)
