<?xml version="1.0"?>

<!-- Mentions which namespace the schema describes. Should target the default namespace. -->

<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema"

targetNamespace="http://www.tutortutor.ca">

<xs:element name="title" type="xs:string"/>

<xs:element name="instructions" type="xs:string"/>

<xs:attribute name="qty" type="xs:unsignedInt" default="1"/>

<xs:element name="recipe">

<xs:complexType>

<xs:sequence>

<xs:element ref="title"/>

<xs:element ref="ingredients"/>

<xs:element ref="instructions"/>

</xs:sequence>

</xs:complexType>

</xs:element>

<xs:element name="ingredients">

<xs:complexType>

<xs:sequence>

<xs:element ref="ingredient" maxOccurs="unbounded"/>

</xs:sequence>

</xs:complexType>

</xs:element>

<xs:element name="ingredient">

<xs:complexType>

<xs:extension base="xs:string">

<xs:attribute ref="qty"/>

</xs:extension>

</xs:complexType>

</xs:element>