Verification d'une conversion DTD vers XSD

Version imprimable

Bonjour à tous,

Dans le cadre d'un projet, je dois convertir une dtd en schéma XML.

A partir de cette DTD :

Code:

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<!--
	DBLP XML Records are available from
 
        http://dblp.uni-trier.de/xml/
 
	Copyright 2001, 2003 by Michael Ley (ley@uni-trier.de)
 
        Copying of the "DBLP" bibliography collection is permitted provided that
        the copies are not made or distributed for direct commercial advantage and
        credit for the source is given. To copy or republish otherwise requires
        specific permission. ACM, IEEE Computer Society, and The VLDB Endowment
        have the permission to publish DBLP on CDROM/DVD and on their Web servers. 
 
-->
 
<!ELEMENT dblp (article|inproceedings|proceedings|book|incollection|
                phdthesis|mastersthesis|www)*>
<!ENTITY % field "author|editor|title|booktitle|pages|year|address|journal|volume|number|month|url|ee|cdrom|cite|publisher|note|crossref|isbn|series|school|chapter">
 
<!ELEMENT article       (%field;)*>
<!ATTLIST article
                        key CDATA #REQUIRED
                        reviewid CDATA #IMPLIED
                        rating CDATA #IMPLIED
                        mdate CDATA #IMPLIED
>
 
<!ELEMENT inproceedings (%field;)*>
<!ATTLIST inproceedings key CDATA #REQUIRED
                        mdate CDATA #IMPLIED
>
 
<!ELEMENT proceedings   (%field;)*>
<!ATTLIST proceedings   key CDATA #REQUIRED
                        mdate CDATA #IMPLIED
>
 
<!ELEMENT book          (%field;)*>
<!ATTLIST book          key CDATA #REQUIRED
                        mdate CDATA #IMPLIED
>
 
<!ELEMENT incollection  (%field;)*>
<!ATTLIST incollection  key CDATA #REQUIRED
                        mdate CDATA #IMPLIED
>
 
<!ELEMENT phdthesis     (%field;)*>
<!ATTLIST phdthesis     key CDATA #REQUIRED
                        mdate CDATA #IMPLIED
>
 
<!ELEMENT mastersthesis (%field;)*>
<!ATTLIST mastersthesis key CDATA #REQUIRED
                        mdate CDATA #IMPLIED
>
 
<!ELEMENT www           (%field;)*>
<!ATTLIST www           key CDATA #REQUIRED
                        mdate CDATA #IMPLIED
>
 
<!ELEMENT author    (#PCDATA)>
<!ELEMENT editor    (#PCDATA)>
<!ELEMENT address   (#PCDATA)>
 
<!ENTITY % titlecontents "#PCDATA|sub|sup|i|tt|ref">
<!ELEMENT title     (%titlecontents;)*>
<!ELEMENT booktitle (#PCDATA)>
<!ELEMENT pages     (#PCDATA)>
<!ELEMENT year      (#PCDATA)>
<!ELEMENT journal   (#PCDATA)>
<!ELEMENT volume    (#PCDATA)>
<!ELEMENT number    (#PCDATA)>
<!ELEMENT month     (#PCDATA)>
<!ELEMENT url       (#PCDATA)>
<!ELEMENT ee        (#PCDATA)>
<!ELEMENT cdrom     (#PCDATA)>
<!ELEMENT cite      (#PCDATA)>
<!ELEMENT school    (#PCDATA)>
<!ELEMENT publisher (#PCDATA)>
<!ATTLIST publisher
                    href CDATA #IMPLIED
>
<!ELEMENT note      (#PCDATA)>
<!ATTLIST cite
                    label CDATA #IMPLIED
>
<!ELEMENT crossref  (#PCDATA)>
<!ELEMENT isbn      (#PCDATA)>
<!ELEMENT chapter   (#PCDATA)>
<!ELEMENT series    (#PCDATA)>
<!ATTLIST series
                    href CDATA #IMPLIED
>
<!ELEMENT layout    ANY>
<!ATTLIST layout
                    logo CDATA #IMPLIED
>
 
<!ELEMENT ref (#PCDATA)>
<!ATTLIST ref href CDATA #REQUIRED>
<!ELEMENT sup (%titlecontents;)*>
<!ELEMENT sub (%titlecontents;)*>
<!ELEMENT i   (%titlecontents;)*>
<!ELEMENT tt  (%titlecontents;)*>
 
<!ENTITY reg   "®">
<!ENTITY micro "µ">
<!ENTITY times "×">
 
<!-- (C) International Organization for Standardization 1986
     Permission to copy in any form is granted for use with
     conforming SGML systems and applications as defined in
     ISO 8879, provided this notice is included in all copies.
-->
<!-- Character entity set. Typical invocation:
     <!ENTITY % HTMLlat1 PUBLIC
       "ISO 8879-1986//ENTITIES Added Latin 1//EN//XML">
-->
<!-- This version of the entity set can be used with any SGML document
     which uses ISO 8859-1 or ISO 10646 as its document character 
     set. This includes XML documents and ISO HTML documents. 
-->
 
    <!ENTITY Agrave  "À" ><!-- capital A, grave accent -->
    <!ENTITY Aacute  "Á" ><!-- capital A, acute accent -->
    <!ENTITY Acirc   "Â" ><!-- capital A, circumflex accent -->
    <!ENTITY Atilde  "Ã" ><!-- capital A, tilde -->
    <!ENTITY Auml    "Ä" ><!-- capital A, dieresis or umlaut mark -->
    <!ENTITY Aring   "Å" ><!-- capital A, ring -->
    <!ENTITY AElig   "Æ" ><!-- capital AE diphthong (ligature) -->
    <!ENTITY Ccedil  "Ç" ><!-- capital C, cedilla -->
    <!ENTITY Egrave  "È" ><!-- capital E, grave accent -->
    <!ENTITY Eacute  "É" ><!-- capital E, acute accent -->
    <!ENTITY Ecirc   "Ê" ><!-- capital E, circumflex accent -->
    <!ENTITY Euml    "Ë" ><!-- capital E, dieresis or umlaut mark -->
    <!ENTITY Igrave  "Ì" ><!-- capital I, grave accent -->
    <!ENTITY Iacute  "Í" ><!-- capital I, acute accent -->
    <!ENTITY Icirc   "Î" ><!-- capital I, circumflex accent -->
    <!ENTITY Iuml    "Ï" ><!-- capital I, dieresis or umlaut mark -->
    <!ENTITY ETH     "Ð" ><!-- capital Eth, Icelandic -->
    <!ENTITY Ntilde  "Ñ" ><!-- capital N, tilde -->
    <!ENTITY Ograve  "Ò" ><!-- capital O, grave accent -->
    <!ENTITY Oacute  "Ó" ><!-- capital O, acute accent -->
    <!ENTITY Ocirc   "Ô" ><!-- capital O, circumflex accent -->
    <!ENTITY Otilde  "Õ" ><!-- capital O, tilde -->
    <!ENTITY Ouml    "Ö" ><!-- capital O, dieresis or umlaut mark -->
    <!ENTITY Oslash  "Ø" ><!-- capital O, slash -->
    <!ENTITY Ugrave  "Ù" ><!-- capital U, grave accent -->
    <!ENTITY Uacute  "Ú" ><!-- capital U, acute accent -->
    <!ENTITY Ucirc   "Û" ><!-- capital U, circumflex accent -->
    <!ENTITY Uuml    "Ü" ><!-- capital U, dieresis or umlaut mark -->
    <!ENTITY Yacute  "Ý" ><!-- capital Y, acute accent -->
    <!ENTITY THORN   "Þ" ><!-- capital THORN, Icelandic -->
    <!ENTITY szlig   "ß" ><!-- small sharp s, German (sz ligature) -->
    <!ENTITY agrave  "à" ><!-- small a, grave accent -->   
    <!ENTITY aacute  "á" ><!-- small a, acute accent -->
    <!ENTITY acirc   "â" ><!-- small a, circumflex accent -->
    <!ENTITY atilde  "ã" ><!-- small a, tilde -->
    <!ENTITY auml    "ä" ><!-- small a, dieresis or umlaut mark -->
    <!ENTITY aring   "å" ><!-- small a, ring -->
    <!ENTITY aelig   "æ" ><!-- small ae diphthong (ligature) -->
    <!ENTITY ccedil  "ç" ><!-- small c, cedilla -->
    <!ENTITY egrave  "è" ><!-- small e, grave accent -->
    <!ENTITY eacute  "é" ><!-- small e, acute accent -->
    <!ENTITY ecirc   "ê" ><!-- small e, circumflex accent -->
    <!ENTITY euml    "ë" ><!-- small e, dieresis or umlaut mark -->
    <!ENTITY igrave  "ì" ><!-- small i, grave accent -->
    <!ENTITY iacute  "í" ><!-- small i, acute accent -->
    <!ENTITY icirc   "î" ><!-- small i, circumflex accent -->
    <!ENTITY iuml    "ï" ><!-- small i, dieresis or umlaut mark -->
    <!ENTITY eth     "ð" ><!-- small eth, Icelandic -->
    <!ENTITY ntilde  "ñ" ><!-- small n, tilde -->
    <!ENTITY ograve  "ò" ><!-- small o, grave accent -->
    <!ENTITY oacute  "ó" ><!-- small o, acute accent -->
    <!ENTITY ocirc   "ô" ><!-- small o, circumflex accent -->
    <!ENTITY otilde  "õ" ><!-- small o, tilde -->
    <!ENTITY ouml    "ö" ><!-- small o, dieresis or umlaut mark -->
 
    <!ENTITY oslash  "ø" ><!-- small o, slash -->
    <!ENTITY ugrave  "ù" ><!-- small u, grave accent -->
    <!ENTITY uacute  "ú" ><!-- small u, acute accent -->
    <!ENTITY ucirc   "û" ><!-- small u, circumflex accent -->
    <!ENTITY uuml    "ü" ><!-- small u, dieresis or umlaut mark -->
    <!ENTITY yacute  "ý" ><!-- small y, acute accent -->
    <!ENTITY thorn   "þ" ><!-- small thorn, Icelandic -->
    <!ENTITY yuml    "ÿ" ><!-- small y, dieresis or umlaut mark -->

J'arrive à obtenir le fichier xsd suivant :

Code:

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<?xml version="1.0" encoding="UTF-8"?>
 
<!--
  DBLP XML Records are available from
 
  http://dblp.uni-trier.de/xml/
 
  Copyright 2001, 2003 by Michael Ley (ley@uni-trier.de)
 
  Copying of the "DBLP" bibliography collection is permitted provided that
  the copies are not made or distributed for direct commercial advantage and
  credit for the source is given. To copy or republish otherwise requires
  specific permission. ACM, IEEE Computer Society, and The VLDB Endowment
  have the permission to publish DBLP on CDROM/DVD and on their Web servers. 
 
-->
 
<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema" elementFormDefault="qualified">
 
 
  <xs:element name="dblp">
    <xs:complexType>
      <xs:choice minOccurs="0" maxOccurs="unbounded">
        <xs:element ref="article"/>
        <xs:element ref="inproceedings"/>
        <xs:element ref="proceedings"/>
        <xs:element ref="book"/>
        <xs:element ref="incollection"/>
        <xs:element ref="phdthesis"/>
        <xs:element ref="mastersthesis"/>
        <xs:element ref="www"/>
      </xs:choice>
    </xs:complexType>
  </xs:element>
 
  <xs:element name="field" abstract="true"/>
 
  <xs:element name="article">
    <xs:complexType>
      <xs:sequence>
        <xs:element minOccurs="0" maxOccurs="unbounded" ref="field"/>
      </xs:sequence>
      <xs:attribute name="key" use="required"/>
      <xs:attribute name="reviewid"/>
      <xs:attribute name="rating"/>
      <xs:attribute name="mdate"/>
    </xs:complexType>
  </xs:element>
 
  <xs:element name="inproceedings">
    <xs:complexType>
      <xs:sequence>
        <xs:element minOccurs="0" maxOccurs="unbounded" ref="field"/>
      </xs:sequence>
      <xs:attribute name="key" use="required"/>
      <xs:attribute name="mdate"/>
    </xs:complexType>
  </xs:element>
 
  <xs:element name="proceedings">
    <xs:complexType>
      <xs:sequence>
        <xs:element minOccurs="0" maxOccurs="unbounded" ref="field"/>
      </xs:sequence>
      <xs:attribute name="key" use="required"/>
      <xs:attribute name="mdate"/>
    </xs:complexType>
  </xs:element>
 
  <xs:element name="book">
    <xs:complexType>
      <xs:sequence>
        <xs:element minOccurs="0" maxOccurs="unbounded" ref="field"/>
      </xs:sequence>
      <xs:attribute name="key" use="required"/>
      <xs:attribute name="mdate"/>
    </xs:complexType>
  </xs:element>
 
  <xs:element name="incollection">
    <xs:complexType>
      <xs:sequence>
        <xs:element minOccurs="0" maxOccurs="unbounded" ref="field"/>
      </xs:sequence>
      <xs:attribute name="key" use="required"/>
      <xs:attribute name="mdate"/>
    </xs:complexType>
  </xs:element>
 
  <xs:element name="phdthesis">
    <xs:complexType>
      <xs:sequence>
        <xs:element minOccurs="0" maxOccurs="unbounded" ref="field"/>
      </xs:sequence>
      <xs:attribute name="key" use="required"/>
      <xs:attribute name="mdate"/>
    </xs:complexType>
  </xs:element>
 
  <xs:element name="mastersthesis">
    <xs:complexType>
      <xs:sequence>
        <xs:element minOccurs="0" maxOccurs="unbounded" ref="field"/>
      </xs:sequence>
      <xs:attribute name="key" use="required"/>
      <xs:attribute name="mdate"/>
    </xs:complexType>
  </xs:element>
 
  <xs:element name="www">
    <xs:complexType>
      <xs:sequence>
        <xs:element minOccurs="0" maxOccurs="unbounded" ref="field"/>
      </xs:sequence>
      <xs:attribute name="key" use="required"/>
      <xs:attribute name="mdate"/>
    </xs:complexType>
  </xs:element>
 
  <xs:element name="author" substitutionGroup="field" type="xs:string"/>
 
  <xs:element name="editor" substitutionGroup="field" type="xs:string"/>
 
  <xs:element name="address" substitutionGroup="field" type="xs:string"/>
 
  <xs:group name="titlecontents">
    <xs:sequence>
      <xs:choice minOccurs="0">
        <xs:element ref="sub"/>
        <xs:element ref="sup"/>
        <xs:element ref="i"/>
        <xs:element ref="tt"/>
        <xs:element ref="ref"/>
      </xs:choice>
    </xs:sequence>
  </xs:group>
 
  <xs:element name="title" substitutionGroup="field">
    <xs:complexType mixed="true">
      <xs:group minOccurs="0" maxOccurs="unbounded" ref="titlecontents"/>
    </xs:complexType>
  </xs:element>
 
  <xs:element name="booktitle" substitutionGroup="field" type="xs:string"/>
 
  <xs:element name="pages" substitutionGroup="field" type="xs:string"/>
 
  <xs:element name="year" substitutionGroup="field" type="xs:string"/>
 
  <xs:element name="journal" substitutionGroup="field" type="xs:string"/>
 
  <xs:element name="volume" substitutionGroup="field" type="xs:string"/>
 
  <xs:element name="number" substitutionGroup="field" type="xs:string"/>
 
  <xs:element name="month" substitutionGroup="field" type="xs:string"/>
 
  <xs:element name="url" substitutionGroup="field" type="xs:string"/>
 
  <xs:element name="ee" substitutionGroup="field" type="xs:string"/>
 
  <xs:element name="cdrom" substitutionGroup="field" type="xs:string"/>
 
  <xs:element name="cite" substitutionGroup="field">
    <xs:complexType mixed="true">
      <xs:attribute name="label"/>
    </xs:complexType>
  </xs:element>
 
  <xs:element name="school" substitutionGroup="field" type="xs:string"/>
 
  <xs:element name="publisher" substitutionGroup="field">
    <xs:complexType mixed="true">
      <xs:attribute name="href"/>
    </xs:complexType>
  </xs:element>
 
  <xs:element name="note" substitutionGroup="field" type="xs:string"/>
 
  <xs:element name="crossref" substitutionGroup="field" type="xs:string"/>
 
  <xs:element name="isbn" substitutionGroup="field" type="xs:string"/>
 
  <xs:element name="chapter" substitutionGroup="field" type="xs:string"/>
 
  <xs:element name="series" substitutionGroup="field">
    <xs:complexType mixed="true">
      <xs:attribute name="href"/>
    </xs:complexType>
  </xs:element>
 
  <xs:element name="layout">
    <xs:complexType>
      <xs:complexContent>
        <xs:extension base="any">
          <xs:attribute name="logo"/>
        </xs:extension>
      </xs:complexContent>
    </xs:complexType>
  </xs:element>
 
  <xs:element name="ref">
    <xs:complexType mixed="true">
      <xs:attribute name="href" use="required"/>
    </xs:complexType>
  </xs:element>
 
  <xs:element name="sup">
    <xs:complexType mixed="true">
      <xs:group minOccurs="0" maxOccurs="unbounded" ref="titlecontents"/>
    </xs:complexType>
  </xs:element>
 
  <xs:element name="sub">
    <xs:complexType mixed="true">
      <xs:group minOccurs="0" maxOccurs="unbounded" ref="titlecontents"/>
    </xs:complexType>
  </xs:element>
 
  <xs:element name="i">
    <xs:complexType mixed="true">
      <xs:group minOccurs="0" maxOccurs="unbounded" ref="titlecontents"/>
    </xs:complexType>
  </xs:element>
 
  <xs:element name="tt">
    <xs:complexType mixed="true">
      <xs:group minOccurs="0" maxOccurs="unbounded" ref="titlecontents"/>
    </xs:complexType>
  </xs:element>
 
  <xs:complexType name="any" mixed="true">
    <xs:sequence>
      <xs:any minOccurs="0" maxOccurs="unbounded" processContents="strict"/>
    </xs:sequence>
  </xs:complexType>
 
</xs:schema>
 
 
 
<!--
  (C) International Organization for Standardization 1986
  Permission to copy in any form is granted for use with
  conforming SGML systems and applications as defined in
  ISO 8879, provided this notice is included in all copies.
-->
<!--
  Character entity set. Typical invocation:
  <!ENTITY % HTMLlat1 PUBLIC
    "ISO 8879-1986//ENTITIES Added Latin 1//EN//XML">
-->
<!--
  This version of the entity set can be used with any SGML document
  which uses ISO 8859-1 or ISO 10646 as its document character 
  set. This includes XML documents and ISO HTML documents. 
-->
<!-- capital A, grave accent -->
<!-- capital A, acute accent -->
<!-- capital A, circumflex accent -->
<!-- capital A, tilde -->
<!-- capital A, dieresis or umlaut mark -->
<!-- capital A, ring -->
<!-- capital AE diphthong (ligature) -->
<!-- capital C, cedilla -->
<!-- capital E, grave accent -->
<!-- capital E, acute accent -->
<!-- capital E, circumflex accent -->
<!-- capital E, dieresis or umlaut mark -->
<!-- capital I, grave accent -->
<!-- capital I, acute accent -->
<!-- capital I, circumflex accent -->
<!-- capital I, dieresis or umlaut mark -->
<!-- capital Eth, Icelandic -->
<!-- capital N, tilde -->
<!-- capital O, grave accent -->
<!-- capital O, acute accent -->
<!-- capital O, circumflex accent -->
<!-- capital O, tilde -->
<!-- capital O, dieresis or umlaut mark -->
<!-- capital O, slash -->
<!-- capital U, grave accent -->
<!-- capital U, acute accent -->
<!-- capital U, circumflex accent -->
<!-- capital U, dieresis or umlaut mark -->
<!-- capital Y, acute accent -->
<!-- capital THORN, Icelandic -->
<!-- small sharp s, German (sz ligature) -->
<!-- small a, grave accent -->
<!-- small a, acute accent -->
<!-- small a, circumflex accent -->
<!-- small a, tilde -->
<!-- small a, dieresis or umlaut mark -->
<!-- small a, ring -->
<!-- small ae diphthong (ligature) -->
<!-- small c, cedilla -->
<!-- small e, grave accent -->
<!-- small e, acute accent -->
<!-- small e, circumflex accent -->
<!-- small e, dieresis or umlaut mark -->
<!-- small i, grave accent -->
<!-- small i, acute accent -->
<!-- small i, circumflex accent -->
<!-- small i, dieresis or umlaut mark -->
<!-- small eth, Icelandic -->
<!-- small n, tilde -->
<!-- small o, grave accent -->
<!-- small o, acute accent -->
<!-- small o, circumflex accent -->
<!-- small o, tilde -->
<!-- small o, dieresis or umlaut mark -->
<!-- small o, slash -->
<!-- small u, grave accent -->
<!-- small u, acute accent -->
<!-- small u, circumflex accent -->
<!-- small u, dieresis or umlaut mark -->
<!-- small y, acute accent -->
<!-- small thorn, Icelandic -->
<!-- small y, dieresis or umlaut mark -->

Le fichier XSD passe bien l'épreuve du validateur XSD mais il ne passe pas dans mon programme (Convertisseur XSD/XML vers OWL). J'ai cherché les éventuels erreurs mais en vain....:roll:

Pour information, j'ai effectué d'autres test cette après midi. Lors du parsage du fichier XSD, une exception StackOverFlow est levé.
Le dépassement de mémoire ne serait pas causé par le point suivant?
Code:

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 <xs:group name="titlecontents"> <xs:sequence> <xs:choice minOccurs="0"> <xs:element ref="sub"/> <xs:element ref="sup"/> <xs:element ref="i"/> <xs:element ref="tt"/> <xs:element ref="ref"/> </xs:choice> </xs:sequence> </xs:group> <xs:element name="sup"> <xs:complexType mixed="true"> <xs:group minOccurs="0" maxOccurs="unbounded" ref="titlecontents"/> </xs:complexType> </xs:element>
La boucle infinie est elle causée par le cycle des références à votre avis?

13/05/2009, 21h21
GrandFather

Bonjour,

Citation:

Envoyé par Metafire18

La boucle infinie est elle causée par le cycle des références à votre avis?

Je serais tenté de dire que oui, mais ce n'est pas normal, il doit y avoir un bug dans l'outil que tu utilises. J'ai déjà utilisé des définitions récursives de ce genre, et elles n'ont causé aucune difficulté avec des validateurs de schémas répondant aux spécifications du W3C (Xerces, MSXML...). :?

Maintenant, peut-être est-ce dû à l'emploi de xs:group, essaie avec des xs:complexType, sait-on jamais...
13/05/2009, 22h07
Metafire18

Citation:

Envoyé par GrandFather

Bonjour,
Je serais tenté de dire que oui, mais ce n'est pas normal, il doit y avoir un bug dans l'outil que tu utilises. J'ai déjà utilisé des définitions récursives de ce genre, et elles n'ont causé aucune difficulté avec des validateurs de schémas répondant aux spécifications du W3C (Xerces, MSXML...). :?

Le parser que j'utilise est basé sur Xerces.

Citation:

Envoyé par GrandFather

Bonjour,
Maintenant, peut-être est-ce dû à l'emploi de xs:group, essaie avec des xs:complexType, sait-on jamais...

J'essaie ça dès demain.

Je viens d'essayer la conversion avec un autre outil et j'obtiens le résultat suivant :

Code:

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<?xml version="1.0" encoding="UTF-8"?>
 
<!--
  DBLP XML Records are available from
 
  http://dblp.uni-trier.de/xml/
 
  Copyright 2001, 2003 by Michael Ley (ley@uni-trier.de)
 
  Copying of the "DBLP" bibliography collection is permitted provided that
  the copies are not made or distributed for direct commercial advantage and
  credit for the source is given. To copy or republish otherwise requires
  specific permission. ACM, IEEE Computer Society, and The VLDB Endowment
  have the permission to publish DBLP on CDROM/DVD and on their Web servers. 
 
-->
 
<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema" elementFormDefault="qualified">
 
 
  <xs:element name="dblp">
    <xs:complexType>
      <xs:choice minOccurs="0" maxOccurs="unbounded">
        <xs:element ref="article"/>
        <xs:element ref="inproceedings"/>
        <xs:element ref="proceedings"/>
        <xs:element ref="book"/>
        <xs:element ref="incollection"/>
        <xs:element ref="phdthesis"/>
        <xs:element ref="mastersthesis"/>
        <xs:element ref="www"/>
      </xs:choice>
    </xs:complexType>
  </xs:element>
 
  <xs:element name="field" abstract="true"/>
 
  <xs:element name="article">
    <xs:complexType>
      <xs:sequence>
        <xs:element minOccurs="0" maxOccurs="unbounded" ref="field"/>
      </xs:sequence>
      <xs:attribute name="key" use="required"/>
      <xs:attribute name="reviewid"/>
      <xs:attribute name="rating"/>
      <xs:attribute name="mdate"/>
    </xs:complexType>
  </xs:element>
 
  <xs:element name="inproceedings">
    <xs:complexType>
      <xs:sequence>
        <xs:element minOccurs="0" maxOccurs="unbounded" ref="field"/>
      </xs:sequence>
      <xs:attribute name="key" use="required"/>
      <xs:attribute name="mdate"/>
    </xs:complexType>
  </xs:element>
 
  <xs:element name="proceedings">
    <xs:complexType>
      <xs:sequence>
        <xs:element minOccurs="0" maxOccurs="unbounded" ref="field"/>
      </xs:sequence>
      <xs:attribute name="key" use="required"/>
      <xs:attribute name="mdate"/>
    </xs:complexType>
  </xs:element>
 
  <xs:element name="book">
    <xs:complexType>
      <xs:sequence>
        <xs:element minOccurs="0" maxOccurs="unbounded" ref="field"/>
      </xs:sequence>
      <xs:attribute name="key" use="required"/>
      <xs:attribute name="mdate"/>
    </xs:complexType>
  </xs:element>
 
  <xs:element name="incollection">
    <xs:complexType>
      <xs:sequence>
        <xs:element minOccurs="0" maxOccurs="unbounded" ref="field"/>
      </xs:sequence>
      <xs:attribute name="key" use="required"/>
      <xs:attribute name="mdate"/>
    </xs:complexType>
  </xs:element>
 
  <xs:element name="phdthesis">
    <xs:complexType>
      <xs:sequence>
        <xs:element minOccurs="0" maxOccurs="unbounded" ref="field"/>
      </xs:sequence>
      <xs:attribute name="key" use="required"/>
      <xs:attribute name="mdate"/>
    </xs:complexType>
  </xs:element>
 
  <xs:element name="mastersthesis">
    <xs:complexType>
      <xs:sequence>
        <xs:element minOccurs="0" maxOccurs="unbounded" ref="field"/>
      </xs:sequence>
      <xs:attribute name="key" use="required"/>
      <xs:attribute name="mdate"/>
    </xs:complexType>
  </xs:element>
 
  <xs:element name="www">
    <xs:complexType>
      <xs:sequence>
        <xs:element minOccurs="0" maxOccurs="unbounded" ref="field"/>
      </xs:sequence>
      <xs:attribute name="key" use="required"/>
      <xs:attribute name="mdate"/>
    </xs:complexType>
  </xs:element>
 
  <xs:element name="author" substitutionGroup="field" type="xs:string"/>
 
  <xs:element name="editor" substitutionGroup="field" type="xs:string"/>
 
  <xs:element name="address" substitutionGroup="field" type="xs:string"/>
 
  <xs:group name="titlecontents">
    <xs:sequence>
      <xs:choice minOccurs="0">
        <xs:element ref="sub"/>
        <xs:element ref="sup"/>
        <xs:element ref="i"/>
        <xs:element ref="tt"/>
        <xs:element ref="ref"/>
      </xs:choice>
    </xs:sequence>
  </xs:group>
 
  <xs:element name="title" substitutionGroup="field">
    <xs:complexType mixed="true">
      <xs:group minOccurs="0" maxOccurs="unbounded" ref="titlecontents"/>
    </xs:complexType>
  </xs:element>
 
  <xs:element name="booktitle" substitutionGroup="field" type="xs:string"/>
 
  <xs:element name="pages" substitutionGroup="field" type="xs:string"/>
 
  <xs:element name="year" substitutionGroup="field" type="xs:string"/>
 
  <xs:element name="journal" substitutionGroup="field" type="xs:string"/>
 
  <xs:element name="volume" substitutionGroup="field" type="xs:string"/>
 
  <xs:element name="number" substitutionGroup="field" type="xs:string"/>
 
  <xs:element name="month" substitutionGroup="field" type="xs:string"/>
 
  <xs:element name="url" substitutionGroup="field" type="xs:string"/>
 
  <xs:element name="ee" substitutionGroup="field" type="xs:string"/>
 
  <xs:element name="cdrom" substitutionGroup="field" type="xs:string"/>
 
  <xs:element name="cite" substitutionGroup="field">
    <xs:complexType mixed="true">
      <xs:attribute name="label"/>
    </xs:complexType>
  </xs:element>
 
  <xs:element name="school" substitutionGroup="field" type="xs:string"/>
 
  <xs:element name="publisher" substitutionGroup="field">
    <xs:complexType mixed="true">
      <xs:attribute name="href"/>
    </xs:complexType>
  </xs:element>
 
  <xs:element name="note" substitutionGroup="field" type="xs:string"/>
 
  <xs:element name="crossref" substitutionGroup="field" type="xs:string"/>
 
  <xs:element name="isbn" substitutionGroup="field" type="xs:string"/>
 
  <xs:element name="chapter" substitutionGroup="field" type="xs:string"/>
 
  <xs:element name="series" substitutionGroup="field">
    <xs:complexType mixed="true">
      <xs:attribute name="href"/>
    </xs:complexType>
  </xs:element>
 
  <xs:element name="layout">
    <xs:complexType>
      <xs:complexContent>
        <xs:extension base="any">
          <xs:attribute name="logo"/>
        </xs:extension>
      </xs:complexContent>
    </xs:complexType>
  </xs:element>
 
  <xs:element name="ref">
    <xs:complexType mixed="true">
      <xs:attribute name="href" use="required"/>
    </xs:complexType>
  </xs:element>
 
  <xs:element name="sup">
    <xs:complexType mixed="true">
      <xs:group minOccurs="0" maxOccurs="unbounded"/>
    </xs:complexType>
  </xs:element>
 
  <xs:element name="sub">
    <xs:complexType mixed="true">
      <xs:group minOccurs="0" maxOccurs="unbounded"/>
    </xs:complexType>
  </xs:element>
 
  <xs:element name="i">
    <xs:complexType mixed="true">
      <xs:group minOccurs="0" maxOccurs="unbounded"/>
    </xs:complexType>
  </xs:element>
 
  <xs:element name="tt">
    <xs:complexType mixed="true">
      <xs:group minOccurs="0" maxOccurs="unbounded"/>
    </xs:complexType>
  </xs:element>
 
  <xs:complexType name="any" mixed="true">
    <xs:sequence>
      <xs:any minOccurs="0" maxOccurs="unbounded" processContents="strict"/>
    </xs:sequence>
  </xs:complexType>
 
</xs:schema>

Les xs:group ont disparu et le résultat me paraît plus fidèle à la DTD (L'élément field par exemple est défini correctement contrairement à la première version). Seulement j'ai toujours mon erreur de StackOverFlow:roll:

Problème résolu :D Il s'agissait bien d'un problème de cycle dans les références.

Avec le code suivant ca fonctionne :

Code:

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<?xml version="1.0" encoding="UTF-8" ?>
 
<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema">
 
  <xs:element name="address">
    <xs:complexType mixed="true" />
  </xs:element>
 
  <xs:element name="article">
    <xs:complexType>
      <xs:choice>
        <xs:element ref="author" />
        <xs:element ref="editor" />
        <xs:element ref="title" />
        <xs:element ref="booktitle" />
        <xs:element ref="pages" />
        <xs:element ref="year" />
        <xs:element ref="address" />
        <xs:element ref="journal" />
        <xs:element ref="volume" />
        <xs:element ref="number" />
        <xs:element ref="month" />
        <xs:element ref="url" />
        <xs:element ref="ee" />
        <xs:element ref="cdrom" />
        <xs:element ref="cite" />
        <xs:element ref="publisher" />
        <xs:element ref="note" />
        <xs:element ref="crossref" />
        <xs:element ref="isbn" />
        <xs:element ref="series" />
        <xs:element ref="school" />
        <xs:element ref="chapter" />
      </xs:choice>
      <xs:attribute name="key" type="xs:string" use="required" />
      <xs:attribute name="rating" type="xs:string" use="optional" />
      <xs:attribute name="mdate" type="xs:string" use="optional" />
      <xs:attribute name="reviewid" type="xs:string" use="optional" />
    </xs:complexType>
  </xs:element>
 
  <xs:element name="author">
    <xs:complexType mixed="true" />
  </xs:element>
 
  <xs:element name="book">
    <xs:complexType>
      <xs:choice>
        <xs:element ref="author" />
        <xs:element ref="editor" />
        <xs:element ref="title" />
        <xs:element ref="booktitle" />
        <xs:element ref="pages" />
        <xs:element ref="year" />
        <xs:element ref="address" />
        <xs:element ref="journal" />
        <xs:element ref="volume" />
        <xs:element ref="number" />
        <xs:element ref="month" />
        <xs:element ref="url" />
        <xs:element ref="ee" />
        <xs:element ref="cdrom" />
        <xs:element ref="cite" />
        <xs:element ref="publisher" />
        <xs:element ref="note" />
        <xs:element ref="crossref" />
        <xs:element ref="isbn" />
        <xs:element ref="series" />
        <xs:element ref="school" />
        <xs:element ref="chapter" />
      </xs:choice>
      <xs:attribute name="key" type="xs:string" use="required" />
      <xs:attribute name="mdate" type="xs:string" use="optional" />
    </xs:complexType>
  </xs:element>
 
  <xs:element name="booktitle">
    <xs:complexType mixed="true" />
  </xs:element>
 
  <xs:element name="cdrom">
    <xs:complexType mixed="true" />
  </xs:element>
 
  <xs:element name="chapter">
    <xs:complexType mixed="true" />
  </xs:element>
 
  <xs:element name="cite">
    <xs:complexType mixed="true">
      <xs:attribute name="label" type="xs:string" use="optional" />
    </xs:complexType>
  </xs:element>
 
  <xs:element name="crossref">
    <xs:complexType mixed="true" />
  </xs:element>
 
  <xs:element name="dblp">
    <xs:complexType>
      <xs:choice>
        <xs:element ref="article" />
        <xs:element ref="inproceedings" />
        <xs:element ref="proceedings" />
        <xs:element ref="book" />
        <xs:element ref="incollection" />
        <xs:element ref="phdthesis" />
        <xs:element ref="mastersthesis" />
        <xs:element ref="www" />
      </xs:choice>
    </xs:complexType>
  </xs:element>
 
  <xs:element name="editor">
    <xs:complexType mixed="true" />
  </xs:element>
 
  <xs:element name="ee">
    <xs:complexType mixed="true" />
  </xs:element>
 
  <xs:element name="i">
    <xs:complexType mixed="true">
      <xs:choice>
        <xs:element name="i1" type="xs:string" />
        <xs:element name="i2" type="xs:string" />
        <xs:element name="i3" type="xs:string" />
        <xs:element name="i4" type="xs:string" />
        <xs:element name="i5" type="xs:string" />
      </xs:choice>
    </xs:complexType>
  </xs:element>
 
  <xs:element name="incollection">
    <xs:complexType>
      <xs:choice>
        <xs:element ref="author" />
        <xs:element ref="editor" />
        <xs:element ref="title" />
        <xs:element ref="booktitle" />
        <xs:element ref="pages" />
        <xs:element ref="year" />
        <xs:element ref="address" />
        <xs:element ref="journal" />
        <xs:element ref="volume" />
        <xs:element ref="number" />
        <xs:element ref="month" />
        <xs:element ref="url" />
        <xs:element ref="ee" />
        <xs:element ref="cdrom" />
        <xs:element ref="cite" />
        <xs:element ref="publisher" />
        <xs:element ref="note" />
        <xs:element ref="crossref" />
        <xs:element ref="isbn" />
        <xs:element ref="series" />
        <xs:element ref="school" />
        <xs:element ref="chapter" />
      </xs:choice>
      <xs:attribute name="key" type="xs:string" use="required" />
      <xs:attribute name="mdate" type="xs:string" use="optional" />
    </xs:complexType>
  </xs:element>
 
  <xs:element name="inproceedings">
    <xs:complexType>
      <xs:choice>
        <xs:element ref="author" />
        <xs:element ref="editor" />
        <xs:element ref="title" />
        <xs:element ref="booktitle" />
        <xs:element ref="pages" />
        <xs:element ref="year" />
        <xs:element ref="address" />
        <xs:element ref="journal" />
        <xs:element ref="volume" />
        <xs:element ref="number" />
        <xs:element ref="month" />
        <xs:element ref="url" />
        <xs:element ref="ee" />
        <xs:element ref="cdrom" />
        <xs:element ref="cite" />
        <xs:element ref="publisher" />
        <xs:element ref="note" />
        <xs:element ref="crossref" />
        <xs:element ref="isbn" />
        <xs:element ref="series" />
        <xs:element ref="school" />
        <xs:element ref="chapter" />
      </xs:choice>
      <xs:attribute name="key" type="xs:string" use="required" />
      <xs:attribute name="mdate" type="xs:string" use="optional" />
    </xs:complexType>
  </xs:element>
 
  <xs:element name="isbn">
    <xs:complexType mixed="true" />
  </xs:element>
 
  <xs:element name="journal">
    <xs:complexType mixed="true" />
  </xs:element>
 
  <xs:element name="layout">
    <xs:complexType>
      <xs:sequence>
        <xs:any namespace="http://www.w3.org/namespace/" />
      </xs:sequence>
      <xs:attribute name="logo" type="xs:string" use="optional" />
    </xs:complexType>
  </xs:element>
 
  <xs:element name="mastersthesis">
    <xs:complexType>
      <xs:choice>
        <xs:element ref="author" />
        <xs:element ref="editor" />
        <xs:element ref="title" />
        <xs:element ref="booktitle" />
        <xs:element ref="pages" />
        <xs:element ref="year" />
        <xs:element ref="address" />
        <xs:element ref="journal" />
        <xs:element ref="volume" />
        <xs:element ref="number" />
        <xs:element ref="month" />
        <xs:element ref="url" />
        <xs:element ref="ee" />
        <xs:element ref="cdrom" />
        <xs:element ref="cite" />
        <xs:element ref="publisher" />
        <xs:element ref="note" />
        <xs:element ref="crossref" />
        <xs:element ref="isbn" />
        <xs:element ref="series" />
        <xs:element ref="school" />
        <xs:element ref="chapter" />
      </xs:choice>
      <xs:attribute name="key" type="xs:string" use="required" />
      <xs:attribute name="mdate" type="xs:string" use="optional" />
    </xs:complexType>
  </xs:element>
 
  <xs:element name="month">
    <xs:complexType mixed="true" />
  </xs:element>
 
  <xs:element name="note">
    <xs:complexType mixed="true" />
  </xs:element>
 
  <xs:element name="number">
    <xs:complexType mixed="true" />
  </xs:element>
 
  <xs:element name="pages">
    <xs:complexType mixed="true" />
  </xs:element>
 
  <xs:element name="phdthesis">
    <xs:complexType>
      <xs:choice>
        <xs:element ref="author" />
        <xs:element ref="editor" />
        <xs:element ref="title" />
        <xs:element ref="booktitle" />
        <xs:element ref="pages" />
        <xs:element ref="year" />
        <xs:element ref="address" />
        <xs:element ref="journal" />
        <xs:element ref="volume" />
        <xs:element ref="number" />
        <xs:element ref="month" />
        <xs:element ref="url" />
        <xs:element ref="ee" />
        <xs:element ref="cdrom" />
        <xs:element ref="cite" />
        <xs:element ref="publisher" />
        <xs:element ref="note" />
        <xs:element ref="crossref" />
        <xs:element ref="isbn" />
        <xs:element ref="series" />
        <xs:element ref="school" />
        <xs:element ref="chapter" />
      </xs:choice>
      <xs:attribute name="key" type="xs:string" use="required" />
      <xs:attribute name="mdate" type="xs:string" use="optional" />
    </xs:complexType>
  </xs:element>
 
  <xs:element name="proceedings">
    <xs:complexType>
      <xs:choice>
        <xs:element ref="author" />
        <xs:element ref="editor" />
        <xs:element ref="title" />
        <xs:element ref="booktitle" />
        <xs:element ref="pages" />
        <xs:element ref="year" />
        <xs:element ref="address" />
        <xs:element ref="journal" />
        <xs:element ref="volume" />
        <xs:element ref="number" />
        <xs:element ref="month" />
        <xs:element ref="url" />
        <xs:element ref="ee" />
        <xs:element ref="cdrom" />
        <xs:element ref="cite" />
        <xs:element ref="publisher" />
        <xs:element ref="note" />
        <xs:element ref="crossref" />
        <xs:element ref="isbn" />
        <xs:element ref="series" />
        <xs:element ref="school" />
        <xs:element ref="chapter" />
      </xs:choice>
      <xs:attribute name="key" type="xs:string" use="required" />
      <xs:attribute name="mdate" type="xs:string" use="optional" />
    </xs:complexType>
  </xs:element>
 
  <xs:element name="publisher">
    <xs:complexType mixed="true">
      <xs:attribute name="href" type="xs:string" use="optional" />
    </xs:complexType>
  </xs:element>
 
  <xs:element name="ref">
    <xs:complexType mixed="true">
      <xs:attribute name="href" type="xs:string" use="required" />
    </xs:complexType>
  </xs:element>
 
  <xs:element name="school">
    <xs:complexType mixed="true" />
  </xs:element>
 
  <xs:element name="series">
    <xs:complexType mixed="true">
      <xs:attribute name="href" type="xs:string" use="optional" />
    </xs:complexType>
  </xs:element>
 
  <xs:element name="sub">
    <xs:complexType mixed="true">
      <xs:choice>
        <xs:element name="sub1" type="xs:string" />
        <xs:element name="sub2" type="xs:string" />
        <xs:element name="sub3" type="xs:string" />
        <xs:element name="sub4" type="xs:string" />
        <xs:element name="sub5" type="xs:string" />
      </xs:choice>
    </xs:complexType>
  </xs:element>
 
  <xs:element name="sup">
    <xs:complexType mixed="true">
      <xs:choice>
        <xs:element name="sup1" type="xs:string" />
        <xs:element name="sup2" type="xs:string" />
        <xs:element name="sup3" type="xs:string" />
        <xs:element name="sup4" type="xs:string" />
        <xs:element name="sup5" type="xs:string" />
      </xs:choice>
    </xs:complexType>
  </xs:element>
 
  <xs:element name="title">
    <xs:complexType mixed="true">
      <xs:choice>
        <xs:element ref="sub" />
        <xs:element ref="sup" />
        <xs:element ref="i" />
        <xs:element ref="tt" />
        <xs:element ref="ref" />
      </xs:choice>
    </xs:complexType>
  </xs:element>
 
  <xs:element name="tt">
    <xs:complexType mixed="true">
      <xs:choice>
        <xs:element name="tt1" type="xs:string" />
        <xs:element name="tt2" type="xs:string" />
        <xs:element name="tt3" type="xs:string" />
        <xs:element name="tt4" type="xs:string" />
        <xs:element name="tt5" type="xs:string" />
      </xs:choice>
    </xs:complexType>
  </xs:element>
 
  <xs:element name="url">
    <xs:complexType mixed="true" />
  </xs:element>
 
  <xs:element name="volume">
    <xs:complexType mixed="true" />
  </xs:element>
 
  <xs:element name="www">
    <xs:complexType>
      <xs:choice>
        <xs:element ref="author" />
        <xs:element ref="editor" />
        <xs:element ref="title" />
        <xs:element ref="booktitle" />
        <xs:element ref="pages" />
        <xs:element ref="year" />
        <xs:element ref="address" />
        <xs:element ref="journal" />
        <xs:element ref="volume" />
        <xs:element ref="number" />
        <xs:element ref="month" />
        <xs:element ref="url" />
        <xs:element ref="ee" />
        <xs:element ref="cdrom" />
        <xs:element ref="cite" />
        <xs:element ref="publisher" />
        <xs:element ref="note" />
        <xs:element ref="crossref" />
        <xs:element ref="isbn" />
        <xs:element ref="series" />
        <xs:element ref="school" />
        <xs:element ref="chapter" />
      </xs:choice>
      <xs:attribute name="key" type="xs:string" use="required" />
      <xs:attribute name="mdate" type="xs:string" use="optional" />
    </xs:complexType>
  </xs:element>
 
  <xs:element name="year">
    <xs:complexType mixed="true" />
  </xs:element>
 
</xs:schema>

Je vais donc devoir revoir le parser XSD pourtant basé sur Xerces "fait chauffer la cafetière"

Merci pour ton aide GrandFather :king: