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kast.xsd
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kast.xsd
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<?xml version="1.0" encoding="UTF-8" ?>
<schema
xmlns="http://www.w3.org/2001/XMLSchema"
targetNamespace="http://angle-lang.org"
elementFormDefault="qualified"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:xs="http://www.w3.org/2001/XMLSchema"
xmlns:xsd="http://www.w3.org/2001/XMLSchema"
xmlns:a="http://angle-lang.org"
xsi:schemaLocation="http://www.w3.org/2007/XMLSchema-versioning"
attributeFormDefault="unqualified" version="1.3" xml:lang="EN">
<annotation>
<documentation>This is the schema for the Kast universal AST</documentation>
<appinfo>
<!-- optional stuff what for?-->
<title>Kast universal AST schema validation</title>
<ns prefix="angle" uri="http://angle-lang.org/2015/KAST-1.0.0"/>
</appinfo>
</annotation>
<!--<element name="expression" type="a:expression"/>-->
<!--<element name="block" type="a:block"/>-->
<element name="module" type="a:module"/>
<element name="package" substitutionGroup="a:module"/>
<element name="class" type="a:class"/>
<element name="let" type="a:let"/>
<element name="var" type="a:let"/>
<element name="assign" substitutionGroup="a:let"/>
<!--nicht ganz das gleiche!-->
<!--<element name="set" type="a:MATH.SET!!!"/>-->
<!--<element name="assignment" type="a:let"/>-->
<!--<element name="set_variable" type="a:let"/>-->
<!--<element name="defvar" type="a:let"/>-->
<!--Mark element as deprecated in XSD ? => annotation only 'workaround'-->
<element name="call" type="a:call"/>
<element name="construct" substitutionGroup="a:call"/>
<element name="invoke" substitutionGroup="a:call"/>
<element name="invocation" substitutionGroup="a:call"/>
<element name="method" type="a:method"/>
<element name="class_method" substitutionGroup="a:method"/>
<element name="function" substitutionGroup="a:method"/>
<element name="def" substitutionGroup="a:method"/>
<element name="fun" substitutionGroup="a:method"/>
<!-- Aliases, KINDA ^^ -->
<xs:group name="expressions">
<xs:choice>
<element name="expression" type="a:expression"/>
<element name="body" type="a:body"/>
<element name="statement" type="a:statement"/>
<element name="method" type="a:method"/>
<element name="def" type="a:method"/>
<element name="let" type="a:let"/>
<element name="var" type="a:let"/>
<element name="switch" type="a:switch"/>
<element name="assign" type="a:let"/>
<!--<element name="assign" substitutionGroup="a:let"/>-->
<element name="call" type="a:call"/>
<element name="print" type="a:print"/>
<!--<element name="value" type="a:value"/>-->
<!--<element name="value" type="a:valueOrExpression"/>-->
<element name="int" type="a:int"/>
<element name="num" type="a:int"/>
<element name="if" type="a:if"/>
<element name="for" type="a:for"/>
<element name="construct" type="a:call"/>
<element name="return" type="a:valueOrExpression"/>
<!--<element name="condition" type="a:expression"/>-->
<element name="condition" type="a:valueOrExpression"/>
</xs:choice>
</xs:group>
<!--<choice maxOccurs="unbounded" minOccurs="0">-->
<!--<group ref="a:expressions"/>-->
<!--</choice>-->
<complexType name="block">
<choice maxOccurs="unbounded" minOccurs="0">
<group ref="a:expressions"/>
</choice>
<!--<attribute name="name" type="string" use="optional"/>-->
</complexType>
<!-- mixed="true" really? what does text mean??-->
<complexType name="expression">
<choice maxOccurs="1" minOccurs="0">
<group ref="a:expressions"/>
</choice>
</complexType>
<complexType name="module">
<choice maxOccurs="unbounded">
<element name="import" type="a:import"/>
<element name="class" type="a:class"/>
<!--<element name="decorators" type="a:decorators"/>-->
<xs:group ref="a:expressions"/>
</choice>
<!--<attribute name="decorators" type="a:decorator_list"/>-->
<attribute name="name" type="string"/>
<attribute name="parent" type="string"/>
<attribute name="enabled" type="boolean" use="optional"/>
<!--<attribute name="implicit-return" type="boolean" use="optional"/>-->
<!--todo: put implicit-return in meta header-->
</complexType>
<complexType name="class">
<complexContent>
<extension base="a:block">
<choice maxOccurs="unbounded">
<element name="name" type="string"/>
<element name="class_method" type="a:method"/>
</choice>
<attribute name="name" type="string"/>
<attribute name="enabled" type="boolean" use="optional"/>
</extension>
</complexContent>
</complexType>
<complexType name="method">
<choice maxOccurs="unbounded">
<element name="name" type="string"/>
<element name="returns" type="a:type"/>
<element name="argument" type="a:argument"/>
<element name="args" type="a:arguments"/>
<!--<element name="let" type="a:let"/> ??-->
<element name="body" type="a:block"/>
<!-- IMPLICIT: BODY!!-->
<!--<element name="return" type="a:valueOrExpression"/> in body is NOT the same as returns !!!-->
</choice>
<attribute name="name" type="string"/>
<attribute name="returns" type="a:type"/>
<attribute name="args" type="a:arguments"/>
<!-- list of variables?? very ruby !-->
<attribute name="static" type="boolean"/>
</complexType>
<simpleType name="url">
<restriction base="xs:anyURI"/>
</simpleType>
<simpleType name="arguments">
<restriction base="xs:string">
<minLength value="0"/>
<pattern value="\[?((\w)+,?)*\]?"/>
</restriction>
</simpleType>
<!--<complexType name="args" >-->
<!--</complexType>-->
<complexType name="body">
<choice maxOccurs="unbounded">
<element name="inline_method" type="a:method"/>
</choice>
</complexType>
<complexType name="let">
<complexContent>
<extension base="a:valueOrExpression">
<attribute name="var" type="a:variable"/>
<attribute name="type" type="a:type"/>
<attribute name="modifier" type="a:modifier"/>
<attribute name="modifiers" type="a:modifiers"/>
</extension>
</complexContent>
</complexType>
<complexType name="call">
<complexContent>
<extension base="a:expression">
<choice maxOccurs="unbounded" minOccurs="0">
<element name="object" type="a:variable"/>
<element name="method" type="a:methodName"/>
<element name="func" type="a:methodName"/>
<element name="argument" type="a:argument"/>
<element name="args" type="a:argument"/>
</choice>
<attribute name="object" type="a:variable"/>
<attribute name="method" type="a:methodName"/>
<attribute name="func" type="a:methodName"/>
<attribute name="argument" type="a:valueOrVariable"/>
<attribute name="args" type="a:valueOrVariable"/>
</extension>
</complexContent>
</complexType>
<simpleType name="variable">
<restriction base="string"/>
</simpleType>
<simpleType name="methodName">
<restriction base="string"/>
</simpleType>
<simpleType name="int">
<restriction base="integer"/>
</simpleType>
<complexType name="if">
<complexContent>
<extension base="a:expression">
<!--<extension base="a:statement">-->
<choice maxOccurs="unbounded">
<element name="else" type="a:valueOrExpression"/>
<element name="then" type="a:valueOrExpression"/>
<element name="condition" type="a:valueOrExpression"/>
<!--<element name="test" type="a:valueOrExpression"/>-->
</choice>
<attribute name="exists" type="a:variable"/>
<!-- diabetes!-->
<attribute name="negate" type="boolean"/>
</extension>
</complexContent>
</complexType>
<!-- in OUR beautiful world statements are expressions; see Paul Graham-->
<complexType name="statement">
<complexContent>
<extension base="a:expression">
</extension>
</complexContent>
</complexType>
<simpleType name="modifier">
<xsd:restriction base="xsd:string">
<xsd:enumeration value="final"/>
<xsd:enumeration value="protected"/>
<xsd:enumeration value="static"/>
<xsd:enumeration value="global"/>
<xsd:enumeration value="const"/>
<xsd:enumeration value="constant"/>
</xsd:restriction>
</simpleType>
<simpleType name="modifiers">
<xs:list itemType="a:modifier"/>
</simpleType>
<complexType name="import">
<attribute name="package" use="required"/>
<attribute name="from"/>
<attribute name="as"/>
<attribute name="pattern"/>
</complexType>
<complexType name="argument">
<complexContent>
<extension base="a:valueOrExpression">
<attribute name="name"/>
</extension>
</complexContent>
</complexType>
<simpleType name="type">
<restriction base="string"/>
</simpleType>
<simpleType name="valueType">
<!-- todo : int, float, ...-->
<restriction base="string"/>
</simpleType>
<simpleType name="valueOrVariable">
<union memberTypes="a:valueType a:variable"/>
</simpleType>
<!--<complexType name="construct">-->
<!--<annotation>-->
<!--<documentation>-->
<!--Use construct(object=type) , not construct(type=type)-->
<!--</documentation>-->
<!--</annotation>-->
<!--<complexContent>-->
<!--<extension base="a:call">-->
<!--<attribute name="object"/>-->
<!--<attribute name="type" use="prohibited"/>-->
<!--</extension>-->
<!--</complexContent>-->
<!--</complexType>-->
<!--mixed="true" means it can have TEXT too !!!-->
<!--<complexType name="condition" mixed="true">-->
<!--<complexContent mixed="true">-->
<!--<extension base="a:valueOrExpression"/>-->
<!--</complexContent>-->
<!--</complexType>-->
<complexType name="value">
<complexContent>
<extension base="a:expression">
</extension>
</complexContent>
</complexType>
<complexType name="valueOrExpression" mixed="true">
<!--<complexContent mixed="true">-->
<!--<extension base="a:expression">-->
<!--<sequence minOccurs="1" maxOccurs="1">-->
<!--<element name="body" type="a:expression"/>-->
<!--</choice>-->
<choice minOccurs="0" maxOccurs="1">
<group ref="a:expressions"/>
<element name="value" type="a:valueOrExpression"/>
</choice>
<attribute name="value" type="a:valueType"/>
<!--</extension>-->
<!--</complexContent>-->
</complexType>
<complexType name="for">
<!--<sequence minOccurs="0">-->
<choice minOccurs="0" maxOccurs="unbounded">
<element name="target" type="a:variable"/>
<!-- todo for x in list -> for x:String in list / for(String x : list)-->
<element name="iter" type="a:expression"/>
<element name="body" type="a:block"/>
<!-- BODY HACK:-->
<group ref="a:expressions"/>
</choice>
<attribute name="target" type="a:variable"/>
</complexType>
<!-- todo remove from minimal version -->
<complexType name="print">
<choice minOccurs="0">
<element name="values" type="a:expression"/>
</choice>
<attribute name="values" type="string"/>
</complexType>
<!-- todo remove from minimal version: it can be simplified by if then statements -->
<complexType name="switch">
<sequence>
<element name="case" type="a:case"/>
<element name="default" type="a:block"/>
</sequence>
</complexType>
<complexType name="case">
<sequence>
<element name="match" type="a:expression"/>
<element name="body" type="a:block"/>
</sequence>
</complexType>
</schema>