<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE type PUBLIC "-//XINS//DTD Type 2.0//EN" "http://www.xins.org/dtd/type_2_0.dtd">

<type name="Operation" rcsversion="$Revision: 1.2 $" rcsdate="$Date: 2007/02/27 13:00:20 $">

	<description>A mathematical operation.</description>
	<pattern>([ \-]?[0-9]+\.?[0-9]*\w?[\+\-\*\/]?)*</pattern>
</type>
