[Xsltforms-support] Validation with Regular Expressions

[William V. <wi...@bi...>]

Hi list,

I'm couldn't find clear documentation about the right way of validating 
a field vs a regular expression (ie. email, credit-card, phone) client 
side (you can always validate on server vs schema, but this is not the 
case).

I've found in XForms documentation and other sources various methods to 
do this, but I'm not sure XSLTForms can support them:

- Specifying an Schema for the instance
- Using custom datatypes in the type attribute of xf:bind
- Using user defined functions in Javascript and calling it from bind 
constraints or xforms-value-changed event handler
- Maybe other...

Can somebody state the best method to do this with XSLTForms.

Thanks for all the help you can provide,


Bill