freeswitch/dtd/freeswitch_dialplan.dtd

<!ELEMENT include (context*)>

<!ELEMENT context (extension*)>
<!ATTLIST context
	name CDATA #REQUIRED
>

<!ELEMENT extension (condition*)>
<!ATTLIST extension 
	name CDATA #REQUIRED
	continue CDATA #IMPLIED
>

<!ELEMENT condition (action*, anti-action*)>
<!ATTLIST condition 
	field CDATA #IMPLIED
	expression CDATA #IMPLIED
	continue CDATA #IMPLIED
>

<!ELEMENT action EMPTY>
<!ATTLIST action 
	application CDATA #REQUIRED
	data CDATA #IMPLIED
>

<!ELEMENT anti-action EMPTY>
<!ATTLIST anti-action
        application CDATA #REQUIRED
        data CDATA #IMPLIED
>