DO NOT REPLY [Bug 28522] New: - fd:aggregatefield and fd:split pattern

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http://issues.apache.org/bugzilla/show_bug.cgi?id=28522

fd:aggregatefield and fd:split pattern

           Summary: fd:aggregatefield and fd:split pattern
           Product: Cocoon 2
           Version: Current CVS 2.1
          Platform: Other
        OS/Version: Other
            Status: NEW
          Severity: Major
          Priority: Other
         Component: CocoonForms
        AssignedTo: [EMAIL PROTECTED]
        ReportedBy: [EMAIL PROTECTED]


Let me show my beautiful example :)
 
     <fd:aggregatefield id="nip" required="false">
      <fd:label>NIP:</fd:label>
<fd:datatype base="string">
        <fd:validation>
    <fd:nip>
     <fd:failmessage>Invalid NIP number.</fd:failmessage>
    </fd:nip>
        </fd:validation>  
</fd:datatype>
      <fd:split pattern="([0-9]{3})-([0-9]{2,3})-([0-9]{2})-([0-9]{2,3})">
        <fd:map group="1" field="part1"/>
        <fd:map group="2" field="part2"/>
        <fd:map group="3" field="part3"/>
        <fd:map group="4" field="part4"/>
        <fd:failmessage>Not a valid 10-digit NIP number.</fd:failmessage>
      </fd:split>
      <fd:combine expression='Concat(part1, "-", part2, "-", part3, "-", part4)
'/>
      <fd:widgets>
        <fd:field id="part1">
        <fd:label>NIP:</fd:label>
          <fd:datatype base="string"/>
        </fd:field>
        <fd:field id="part2">
        <fd:label>-</fd:label>
          <fd:datatype base="string"/>
        </fd:field>
        <fd:field id="part3">
        <fd:label>-</fd:label>
          <fd:datatype base="string"/>
        </fd:field>
        <fd:field id="part4">
        <fd:label>-</fd:label>
          <fd:datatype base="string"/>
        </fd:field>
      </fd:widgets>
    </fd:aggregatefield>
NIP is a polish rate payer identificator. I've written validator for it
and then I've encountered following problem. "fd:split pattern" doesn't work 
correctly. For example. If I'll fill just single field then I get a message "Not 
a valid 10-digit NIP number.". That's correct. If I fill all fields with 
integers I get "Invalid NIP number.". That's correct and not correct :) In fact 
it is an invalid NIP, but I can provide value 1-1-1-1 which not match the 
pattern and I should get "Not a valid 10-digit NIP number.". Moreover if I will 
fill all fields but some of it will be a text instead of number I will get an 
exception from my NIP validator :) because of course it'll be validated against 
NIP rule not pattern. I've tried to change data types for parts to integer but 
in this case it doesn't validate at all and always returns "Not a valid 10-digit 
NIP number.".