<?xml version="1.0" encoding="utf-8"?>
<ruleset version="1.5.0">
    <customrules>
    	<rule name="signed_number" type="regex" test="/-?[0-9]+/" />
    </customrules>
    <fields>
		<field name="module_srls" required="true" />
		<field name="module_category_srl" rule="number" />
		<field name="layout_srl" rule="signed_number" />
    </fields>
</ruleset>
