Reg: YAJL DATA-INTO Option

Hi All,

Currently i am using Scott's YAJL DATA-INTO for parsing a JSON document. I
need help in overcome the below scenario

Current i defined a data structure with field 1 as 25 character, but in the
JSON document the corresponding field have data with length more than 25
character. In this case the DATA-INTO option automatically truncated the
data to 25 character and populated into the Data structure which is as per
my expectation. But i want to know that what are all the field values got
truncated in the DATA-INTO process.

How can i identify the field names which value got truncated in the
DATA-INTO Process?

Regards,
Surender K