Revision control
++ <?xml version="1.0" encoding="UTF-8"?><!-- in the ECMA data model, test that if the child of <data> is XML, or if XML is loaded via src=, the processor
++ assigns it as the value of the var --><scxml xmlns="http://www.w3.org/2005/07/scxml" xmlns:conf="http://www.w3.org/2005/scxml-conformance" initial="s0" version="1.0" datamodel="ecmascript">
++ <datamodel>
++ <data id="var1">
++ <books xmlns="">
++ <book title="title1"/>
++ <book title="title2"/>
++ </books>
++ </data>
++ <data id="var2" src="file:test557.txt"/>
++ </datamodel>
++
++ <state id="s0">
++ <transition cond="var1.getElementsByTagName('book')[0].getAttribute('title') == 'title1'" target="s1"/>
++ <transition target="fail"/>
++ </state>
++
++ <state id="s1">
++ <transition cond="var2.getElementsByTagName('book')[1].getAttribute('title') == 'title2'" target="pass"/>
++ <transition target="fail"/>
++ </state>
++
++ <final id="pass"><onentry><log label="Outcome" expr="'pass'"/></onentry></final>
++ <final id="fail"><onentry><log label="Outcome" expr="'fail'"/></onentry></final>
++
++ </scxml>