fprime/Autocoders/Python/schema/default/interface_schema.rng

<?xml version="1.0" encoding="UTF-8"?>
<grammar
        xmlns="http://relaxng.org/ns/structure/1.0"
        xmlns:a="http://relaxng.org/ns/compatibility/annotations/1.0"
        datatypeLibrary="http://www.w3.org/2001/XMLSchema-datatypes">

    <!-- This is a common file for both interface_schema and internal_interface_schema. These two were originally merged into this file, but had to be split as a workaround to keep the same definitions but not validate component files that had the interface tag in it. -->

    <include href="common_elements.rng"/>

    <start>
        <ref name="interface_root_define"/>
    </start>

    <define name="interface_root_define">
        <a:documentation>Used for interface files.</a:documentation>
        <choice>
            <!--Choice between interface or port root tag.-->
            <element name="interface">
                <a:documentation>Allows for one interface.</a:documentation>
                <ref name="interface_define"/>
            </element>

            <element name="port">
                <a:documentation>Allows for one interface.</a:documentation>
                <ref name="interface_define"/>
            </element>
        </choice>

    </define>

    <define name="interface_define">
        <interleave>
            <!-- Required Attributes -->

            <attribute name="name">
                <a:documentation>Interface name.</a:documentation>
                <text/>
            </attribute>

            <!-- Optional Attributes -->

            <optional>
                <attribute name="priority">
                    <data type="integer"/>
                </attribute>
            </optional>

            <optional>
                <attribute name="namespace">
                    <a:documentation>Namespace in which the interface is in.</a:documentation>
                    <text/>
                </attribute>
            </optional>

            <!-- Elements -->

            <zeroOrMore>
                <element name="include_header">
                    <a:documentation>Defines the header file of the interface.</a:documentation>
                    <data type="anyURI"/>
                </element>
            </zeroOrMore>

            <zeroOrMore>
                <element name="import_serializable_type">
                    <a:documentation>Imports serializable types.</a:documentation>
                    <data type="anyURI"/>
                </element>
            </zeroOrMore>

            <zeroOrMore>
                <element name="import_enum_type">
                    <a:documentation>Imports enum types.</a:documentation>
                    <data type="anyURI"/>
                </element>
            </zeroOrMore>

            <zeroOrMore>
                <element name="import_array_type">
                    <a:documentation>Import array XML files.</a:documentation>
                    <data type="anyURI"/>
                </element>
            </zeroOrMore>

            <zeroOrMore>
                <ref name="args_define"/>
            </zeroOrMore>

            <optional>
                <ref name="return_define"/>
            </optional>

            <optional>
                <ref name="comment_define"/>
            </optional>
        </interleave>
    </define>

    <define name="args_define">
        <element name="args">
            <a:documentation>One or more arguments.</a:documentation>
            <zeroOrMore>
                <ref name="arg_define"/>
            </zeroOrMore>
        </element>
    </define>
</grammar>