<!--

    Copyright (c) 2018, 2019 Oracle and/or its affiliates. All rights reserved.

    This program and the accompanying materials are made available under the
    terms of the Eclipse Public License v. 2.0 which is available at
    http://www.eclipse.org/legal/epl-2.0,
    or the Eclipse Distribution License v. 1.0 which is available at
    http://www.eclipse.org/org/documents/edl-v10.php.

    SPDX-License-Identifier: EPL-2.0 OR BSD-3-Clause

-->

<xsd:schema
        xmlns:xsd="http://www.w3.org/2001/XMLSchema"
        targetNamespace="rs"
        xmlns:rs="rs"
        elementFormDefault="qualified">

    <xsd:element name="main" type="rs:Main"/>

    <xsd:complexType name="Main">
        <xsd:sequence>
            <xsd:element name="numbers" type="rs:Numbers"/>
            <xsd:element maxOccurs="2" minOccurs="1" name="strings" type="rs:Strings"/>
            <xsd:element nillable="true" name="unsignedByte" type="rs:unsignedByte"/>
            <xsd:element nillable="false" name="byteArray" type="rs:byteArray"/>
            <xsd:element name="someCollection" minOccurs="1" maxOccurs="unbounded"/>
            <xsd:element name="optionalElement" minOccurs="0" maxOccurs="unbounded"/>
            <xsd:element minOccurs="0" name="optionalElementWithSimpleType">
                <xsd:simpleType>
                    <xsd:restriction base="xsd:int">
                        <xsd:minInclusive value="1"/>
                        <xsd:maxInclusive value="31"/>
                    </xsd:restriction>
                </xsd:simpleType>
            </xsd:element>
        </xsd:sequence>
    </xsd:complexType>

    <xsd:complexType name="Numbers">
        <xsd:sequence>
            <xsd:element name="minInclusive" type="rs:minInclusive"/>
            <xsd:element name="maxInclusive" type="rs:maxInclusive"/>
            <xsd:element name="minExclusive" type="rs:minExclusive"/>
            <xsd:element name="maxExclusive" type="rs:maxExclusive"/>
            <xsd:element name="minMaxExclusive" type="rs:minMaxExclusive"/>
            <xsd:element maxOccurs="1" minOccurs="1" name="NumberWithHiddenValueAttribute" type="rs:NumberWithHiddenValueAttribute"/>
        </xsd:sequence>
    </xsd:complexType>


    <xsd:simpleType name="Number">
        <xsd:restriction base="xsd:string">
            <xsd:minLength value="1"/>
            <xsd:maxLength value="5"/>
        </xsd:restriction>
    </xsd:simpleType>

    <xsd:complexType name="NumberWithHiddenValueAttribute">
        <xsd:simpleContent>
            <xsd:extension base="rs:Number">
                <xsd:attribute name="code" type="xsd:string" use="required"/>
                <xsd:attribute name = "whatNumber" type="xsd:long" use="required"/>
            </xsd:extension>
        </xsd:simpleContent>
    </xsd:complexType>


    <xsd:complexType name="Strings">
        <xsd:sequence>
            <xsd:element name="regexShorthands" type="rs:regexShorthands"/>
            <xsd:element name="idType" type="rs:idType"/>
            <xsd:element name="genericString" type="rs:minMaxLength"/>
            <xsd:element name="maxLength" type="rs:maxLength"/>
            <xsd:element name="minLength" type="rs:minLength"/>
        </xsd:sequence>
    </xsd:complexType>

    <xsd:simpleType name="regexShorthands">
        <xsd:restriction base="xsd:string">
            <!--\i - Matches any character that may be the first character of an XML name.-->
            <xsd:pattern value="\i"/>
            <xsd:pattern value="\I"/>
            <!--\c - Matches any character that may occur after the first character in an XML name.-->
            <xsd:pattern value="\c"/>
            <xsd:pattern value="\C"/>
            <!--\d - All digits.-->
            <xsd:pattern value="\d"/>
            <xsd:pattern value="\D"/>
            <!--\w - Word character.-->
            <!--'This shorthand translates to a pattern with ampersand characters, which causes the Java Matcher behave non-deterministically and malfunction from time to time!'-->
            <!--<xsd:pattern value="\w"/>-->
            <!--'This shorthand translates to a pattern with ampersand characters, which causes the Java Matcher behave non-deterministically and malfunction from time to time!'-->
            <!--<xsd:pattern value="\W"/>-->
            <!--\s - Whitespace character.-->
            <xsd:pattern value="\s"/>
            <xsd:pattern value="\S"/>
            <!--\b, \B - Boundary definitions.-->
            <!--'This expression is not supported in the current option setting.'-->
            <!--<xsd:pattern value="\b"/>-->
            <!--'This expression is not supported in the current option setting.'-->
            <!--<xsd:pattern value="\B"/>-->
            <!--\h - Horizontal whitespace character - Java does not support, changed in Java 8 though.-->
            <xsd:pattern value="\h"/>
            <xsd:pattern value="\H"/>
            <!--\v - Vertical whitespace character - Java translates the shorthand to \cK only, meaning changed in Java 8 though.-->
            <!--'This expression is not supported in the current option setting.'-->
            <!--<xsd:pattern value="\v"/>-->
            <xsd:pattern value="\V"/>
            <!--\X - Extended grapheme cluster.-->
            <!--'This expression is not supported in the current option setting.'-->
            <!--<xsd:pattern value="\X"/>-->
            <!--\R - Carriage return.-->
            <xsd:pattern value="\R"/>
        </xsd:restriction>
    </xsd:simpleType>

    <xsd:simpleType name="minMaxLength">
        <xsd:restriction base="xsd:string">
            <xsd:minLength value="0"/>
            <xsd:maxLength value="1024"/>
        </xsd:restriction>
    </xsd:simpleType>

    <xsd:simpleType name="maxLength">
        <xsd:restriction base="xsd:string">
            <xsd:maxLength value="1024"/>
        </xsd:restriction>
    </xsd:simpleType>

    <xsd:simpleType name="minLength">
        <xsd:restriction base="xsd:string">
            <xsd:minLength value="0"/>
        </xsd:restriction>
    </xsd:simpleType>

    <xsd:simpleType name="unsignedByte">
        <xsd:restriction base="xsd:unsignedByte">
            <xsd:pattern value="[0-9]"/>
        </xsd:restriction>
    </xsd:simpleType>

    <xsd:simpleType name="maxInclusive">
        <xsd:restriction base="xsd:long">
            <xsd:maxInclusive value="1000"/>
        </xsd:restriction>
    </xsd:simpleType>

    <xsd:simpleType name="minInclusive">
        <xsd:restriction base="xsd:long">
            <xsd:minInclusive value="1000"/>
        </xsd:restriction>
    </xsd:simpleType>

    <xsd:simpleType name="maxExclusive">
        <xsd:restriction base="xsd:long">
            <xsd:maxExclusive value="1000"/>
        </xsd:restriction>
    </xsd:simpleType>

    <xsd:simpleType name="minExclusive">
        <xsd:restriction base="xsd:long">
            <xsd:minExclusive value="0"/>
        </xsd:restriction>
    </xsd:simpleType>

    <xsd:simpleType name="minMaxExclusive">
        <xsd:restriction base="xsd:long">
            <xsd:minExclusive value="0"/>
            <xsd:maxExclusive value="9223372"/>
        </xsd:restriction>
    </xsd:simpleType>

    <xsd:simpleType name="byteArray">
        <xsd:restriction base="xsd:hexBinary">
            <xsd:maxLength value="18" />
        </xsd:restriction>
    </xsd:simpleType>

    <xsd:simpleType name="idType">
        <xsd:restriction base="xsd:ID">
            <xsd:maxLength value="100"/>
        </xsd:restriction>
    </xsd:simpleType>
</xsd:schema>