DAP4: DDX Grammar
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Revision as of 22:51, 21 February 2012 by DennisHeimbigner (talk | contribs) (Created page with "'''Version: 1.0''' Below is the formal grammar for the DAP4 DXD. <pre> <!-- Relax NG Grammar --> <!--grammar datatypelibrary="http://opendap.org/DAP4/datatypes.xml"--> <grammar...")
Version: 1.0
Below is the formal grammar for the DAP4 DXD.
<!-- Relax NG Grammar --> <!--grammar datatypelibrary="http://opendap.org/DAP4/datatypes.xml"--> <grammar xmlns="http://relaxng.org/ns/structure/1.0"> <start> <element name="dataset"> <ref name="groupdef"/> </element> </start> <define name="groupdef"> <attribute name="name"/> <zeroOrMore> <element name="attribute"><ref name="attributedef"/></element> </zeroOrMore> <optional> <element name="dimensions"> <zeroOrMore> <element name="dimension"><ref name="dimdef"/></element> </zeroOrMore> </element> </optional> <zeroOrMore> <element name="variable"><ref name="variabledef"/></element> </zeroOrMore> <zeroOrMore> <element name="group"><ref name="groupdef"/></element> </zeroOrMore> </define> <define name="dimdef"> <attribute name="name"/> <attribute name="size"/> <zeroOrMore> <element name="attribute"><ref name="attributedef"/></element> </zeroOrMore> </define> <define name="variabledef"> <attribute name="name"/> <zeroOrMore> <element name="dimension"> <attribute name="name"/> </element> </zeroOrMore> <zeroOrMore> <element name="coordinatevar"> <attribute name="name"/> </element> </zeroOrMore> <choice> <attribute name="type"/> <element name="structure"><ref name="structuredef"/></element> <element name="sequence"><ref name="sequencedef"/></element> <element name="grid"><ref name="griddef"/></element> </choice> <zeroOrMore> <element name="attribute"><ref name="attributedef"/></element> </zeroOrMore> </define> <define name="structuredef"> <attribute name="name"/> <zeroOrMore> <element name="variable"><ref name="variabledef"/></element> </zeroOrMore> <zeroOrMore> <element name="attribute"><ref name="attributedef"/></element> </zeroOrMore> </define> <define name="sequencedef"> <attribute name="name"/> <zeroOrMore> <element name="variable"><ref name="variabledef"/></element> </zeroOrMore> <zeroOrMore> <element name="attribute"><ref name="attributedef"/></element> </zeroOrMore> </define> <define name="griddef"> <attribute name="name"/> <element name="array"> <element name="variable"><ref name="variabledef"/></element> </element> <element name="maps"> <zeroOrMore> <element name="variable"><ref name="variabledef"/></element> </zeroOrMore> </element> <zeroOrMore> <element name="attribute"><ref name="attributedef"/></element> </zeroOrMore> </define> <define name="attributedef"> <attribute name="name"/> <attribute name="type"/> <optional> <attribute name="namespace"/> </optional> <choice> <attribute name="value"/> <oneOrMore> <element name="value"> <attribute name="value"/> </element> </oneOrMore> </choice> </define> </grammar>