[Xsltforms-support] date validation

[Stephen C. <Ste...@ut...>]

Looking at the js code I see that there is a regex pattern used to check 
formatting which is usually valid so the user input is not "wrong" and 
(visually flagged as such) then a parsing and a formatting step.

I imagine the parsing is breaking the date string down and then building 
a Date value and this is where the behaviour might be wrong in that a 
new date is built and formatted but which may be different to what the 
user entered without him/her realising that this has occurred. They just 
see that it apparently valid and move on without checking the final result.

I think that a different strategy where the individual parts of the date 
string are validated and then if all (years, months, days, hrs, minutes, 
seconds) are OK  the whole date string can be checked as a valid 
javascript Date and then formatted.

I'll look into this further but would appreciate if someone with more 
XSLTForms insight could take a look.

-- 
Regards

Stephen Cameron

Data Programmer
Integrated Marine Observing System  (IMOS)
eMarine Information Infrastructure Project
University of Tasmania, Private Bag 21, Hobart, TAS 7001, Australia

Tel: +61 3 6226 8507
Fax: +61 3 6226 2997
Email: ste...@ut...
URL: http://www.imos.org.au/eMII.html