Where can I find the flatworm xml tags

[Dinopis]

I work with flatworm (files that consists of fixed length fields delimited by EOLs) and I want to add a new validation tag in my xml. Something like: for this field, only 0-8 digit is valid, otherwise use *.\[code\]<record-element start="76" end="77" beanref="order.frequency" type="int"> <conversion-option name="justify" value="http://stackoverflow.com/questions/10614040/left"/></record-element>\[/code\]My question is: Where can I find my options for flatworm XML. Something like:\[code\]<conversion-option name="pattern" value="http://stackoverflow.com/questions/10614040/([0-8]*)" />\[/code\]of course that line doesn't work.Thanks