<!-- rrdtool-dump.dtd -->
<!-- wolfgang{dot}schrimm{at}urz{dot}uni-heidelberg{dot}de -->

<!-- root element -->
<!ELEMENT rrd (version, step, lastupdate, ds+, rra+)>

<!-- rrd's children -->
<!ELEMENT version (#PCDATA)>
<!ELEMENT step (#PCDATA)>
<!ELEMENT lastupdate (#PCDATA)>
<!-- There are two different elements with the same name -->
<!-- /rrd/ds and /rrd/rra/cdp_prep/ds                    -->
<!ELEMENT ds ((name, type, minimal_heartbeat, min, max, last_ds, value, 
unknown_sec)|(value, unknown_datapoints))>
<!ELEMENT rra (cf, pdp_per_row, xff, cdp_prep, database)>

<!-- ds's children -->
<!ELEMENT name (#PCDATA)>
<!ELEMENT type (#PCDATA)>
<!ELEMENT minimal_heartbeat (#PCDATA)>
<!ELEMENT min (#PCDATA)>
<!ELEMENT max (#PCDATA)>
<!ELEMENT last_ds (#PCDATA)>
<!ELEMENT unknown_sec (#PCDATA)>
<!ELEMENT unknown_datapoints (#PCDATA)>
<!-- There are two different elements with the same name -->
<!-- /rrd/ds/value and /rrd/rra/cdp_prep/ds/value        -->
<!ELEMENT value (#PCDATA)>

<!-- rra's children -->
<!ELEMENT cf (#PCDATA)>
<!ELEMENT pdp_per_row (#PCDATA)>
<!ELEMENT xff (#PCDATA)>
<!ELEMENT cdp_prep (ds+)>
<!ELEMENT database (row+)>

<!-- database's children -->
<!ELEMENT row (v+)>
<!ELEMENT v (#PCDATA)>