added xsd:include support, fixed testSchemas behaviour when a schemas

* include/libxml/schemasInternals.h include/libxml/xmlerror.h
  testSchemas.c xmlschemas.c: added xsd:include support, fixed
  testSchemas behaviour when a schemas failed to parse.
* test/schemas/vdv-* result/schemas/vdv-first5_0_0*: added one
  test for xsd:include from Eric Van der Vlist
Daniel
diff --git a/test/schemas/vdv-complexTypes.xsd b/test/schemas/vdv-complexTypes.xsd
new file mode 100644
index 0000000..cd40fb8
--- /dev/null
+++ b/test/schemas/vdv-complexTypes.xsd
@@ -0,0 +1,37 @@
+<?xml version="1.0" encoding="UTF-8"?>

+<!-- $Header: /home/cvsroot/w3c-xml-schema/user/examples/complexTypes.xsd,v 1.1 2001/11/26 13:27:07 vdv Exp $ -->

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

+

+

+	<xs:complexType name="elementWithID">

+					<xs:attribute ref="id"/>

+	</xs:complexType>

+					<xs:complexType name="bookTmp">

+									<xs:complexContent>

+													<xs:extension base="elementWithID">

+			<xs:sequence>

+				<xs:element ref="isbn"/>

+				<xs:element ref="title"/>

+				<xs:element ref="author" minOccurs="0" maxOccurs="unbounded"/>

+				<xs:element ref="character" minOccurs="0" maxOccurs="unbounded"/>

+			</xs:sequence>

+			<xs:attribute ref="available"/>

+													</xs:extension>

+									</xs:complexContent>

+		</xs:complexType>

+	

+	<xs:complexType name="personType">

+					<xs:complexContent>

+									<xs:extension base="elementWithID">

+			<xs:sequence>

+				<xs:element ref="name"/>

+				<xs:element ref="born"/>

+				<xs:element ref="dead" minOccurs="0"/>

+				<xs:element ref="qualification"  minOccurs="0"/>

+			</xs:sequence>

+									</xs:extension>

+					</xs:complexContent>

+		</xs:complexType>

+		

+	

+</xs:schema>

diff --git a/test/schemas/vdv-first5_0.xml b/test/schemas/vdv-first5_0.xml
new file mode 100644
index 0000000..7d4e662
--- /dev/null
+++ b/test/schemas/vdv-first5_0.xml
@@ -0,0 +1,33 @@
+<?xml version="1.0" encoding="UTF-8"?>

+<!-- $Header: /cvs/gnome/gnome-xml/test/schemas/vdv-first0_0.xml,v 1.1 2003/11/22 20:37:51 veillard Exp $ -->

+<library>

+	<book id="b0836217462" available="true">

+		<isbn>0836217462</isbn>

+		<title lang="en">Being a Dog Is a Full-Time Job</title>

+		<author id="CMS">

+			<name>Charles M Schulz</name>

+			<born>1922-11-26</born>

+			<dead>2000-02-12</dead>

+		</author>

+		<character id="PP">

+			<name>Peppermint Patty</name>

+			<born>1966-08-22</born>

+			<qualification>bold, brash and tomboyish</qualification>

+		</character>

+		<character id="Snoopy">

+			<name>Snoopy</name>

+			<born>1950-10-04</born>

+			<qualification>extroverted beagle</qualification>

+		</character>

+		<character id="Schroeder">

+			<name>Schroeder</name>

+			<born>1951-05-30</born>

+			<qualification>brought classical music to the Peanuts strip</qualification>

+		</character>

+		<character id="Lucy">

+			<name>Lucy</name>

+			<born>1952-03-03</born>

+			<qualification>bossy, crabby and selfish</qualification>

+		</character>

+	</book>

+</library>

diff --git a/test/schemas/vdv-first5_0.xsd b/test/schemas/vdv-first5_0.xsd
new file mode 100644
index 0000000..6d5ffaa
--- /dev/null
+++ b/test/schemas/vdv-first5_0.xsd
@@ -0,0 +1,85 @@
+<?xml version="1.0" encoding="UTF-8"?>

+<!-- $Header: /home/cvsroot/w3c-xml-schema/user/examples/first-building-blocks.xsd,v 1.1 2001/11/26 13:27:07 vdv Exp $ -->

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

+

+<xs:include schemaLocation="vdv-simpleTypes.xsd"/>

+<xs:include schemaLocation="vdv-complexTypes.xsd"/>

+

+	<xs:element name="name" type="string32"/>

+	<xs:element name="qualification" type="string255"/>

+	<xs:element name="born" type="date"/>

+	<xs:element name="dead" type="date"/>

+	<xs:element name="isbn" type="isbn"/>

+	

+	<xs:attribute name="id" type="xs:ID"/>

+	<xs:attribute name="available" type="xs:boolean"/>

+	<xs:attribute name="lang" type="supportedLanguages"/>

+

+		

+	<xs:element name="title">

+		<xs:complexType>

+			<xs:simpleContent>

+				<xs:extension base="string255">

+					<xs:attribute ref="lang"/>

+				</xs:extension>

+			</xs:simpleContent>

+		</xs:complexType>

+	</xs:element>

+	

+	<xs:element name="library">

+		<xs:complexType>

+			<xs:sequence>

+				<xs:element ref="book" maxOccurs="unbounded"/>

+			</xs:sequence>

+		</xs:complexType>

+	</xs:element>

+	

+	<xs:element name="book">

+					<xs:complexType>

+									<xs:complexContent>

+													<xs:restriction base="bookTmp">

+			<xs:sequence>

+				<xs:element ref="isbn"/>

+				<xs:element ref="title"/>

+				<xs:element ref="author" minOccurs="0" maxOccurs="unbounded"/>

+				<xs:element ref="character" minOccurs="0" maxOccurs="unbounded"/>

+			</xs:sequence>

+			<xs:attribute name="id" type="bookID"/>

+			<xs:attribute ref="available"/>

+													</xs:restriction>

+									</xs:complexContent>

+		</xs:complexType>

+	</xs:element>

+

+	<xs:element name="author">

+					<xs:complexType>

+									<xs:complexContent>

+													<xs:restriction base="personType">

+			<xs:sequence>

+				<xs:element ref="name"/>

+				<xs:element ref="born"/>

+				<xs:element ref="dead" minOccurs="0"/>

+			</xs:sequence>

+			<xs:attribute ref="id"/>

+													</xs:restriction>

+									</xs:complexContent>

+		</xs:complexType>

+	</xs:element>

+	

+	

+	<xs:element name="character">

+		<xs:complexType>

+									<xs:complexContent>

+													<xs:restriction base="personType">

+			<xs:sequence>

+				<xs:element ref="name"/>

+				<xs:element ref="born"/>

+				<xs:element ref="qualification"/>

+			</xs:sequence>

+			<xs:attribute ref="id"/>

+													</xs:restriction>

+									</xs:complexContent>

+		</xs:complexType>

+	</xs:element>

+	

+</xs:schema>

diff --git a/test/schemas/vdv-simpleTypes.xsd b/test/schemas/vdv-simpleTypes.xsd
new file mode 100644
index 0000000..79f95fd
--- /dev/null
+++ b/test/schemas/vdv-simpleTypes.xsd
@@ -0,0 +1,38 @@
+<?xml version="1.0" encoding="UTF-8"?>

+<!-- $Header: /home/cvsroot/w3c-xml-schema/user/examples/simpleTypes.xsd,v 1.1 2001/11/26 13:27:08 vdv Exp $ -->

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

+

+	<xs:simpleType name="string255">

+		<xs:restriction base="xs:token">

+			<xs:maxLength value="255"/>

+		</xs:restriction>

+	</xs:simpleType>

+	<xs:simpleType name="string32">

+		<xs:restriction base="xs:token">

+			<xs:maxLength value="32"/>

+		</xs:restriction>

+	</xs:simpleType>

+	<xs:simpleType name="isbn">

+		<xs:restriction base="xs:unsignedLong">

+			<xs:totalDigits value="10"/>

+			<xs:pattern value="\d{10}"/>

+		</xs:restriction>

+	</xs:simpleType>

+	<xs:simpleType name="bookID">

+		<xs:restriction base="xs:ID">

+			<xs:pattern value="b\d{10}"/>

+		</xs:restriction>

+	</xs:simpleType>

+	<xs:simpleType name="supportedLanguages">

+		<xs:restriction base="xs:language">

+			<xs:enumeration value="en"/>

+			<xs:enumeration value="es"/>

+		</xs:restriction>

+	</xs:simpleType>

+	<xs:simpleType name="date">

+		<xs:restriction base="xs:date">

+						<xs:pattern value="[^:Z]*"/>

+		</xs:restriction>

+	</xs:simpleType>

+

+</xs:schema>