Validating with external entities and schemas 1.4.4 vs 2.3.0 2003-02-21 - By Fitzharris, Walter M. (LNG-DAY)
For more on the same problem, see my unanswered emails in the archives...
To save you some pain:
Basically, schema does not address physical doc items like entities...they
are like word-processor macros that live in the physical world, not the
logical.
Schema addresses the logical doc, so entities beyond the built-in must be
pre-processed out by you before the parser ever sees the file.
My guess is that the mutant "combo" document worked with old versions of the
parser by pure luck. Unfortunately, the default parser in XML Spy also
parses these Frankensteins without errors, giving you the illusion that you
might be able to use such a thing in production.
Walt Fitzharris
-----Original Message-----
From: Stottlemyer, Carl [mailto:carl.stottlemyer@(protected)]
Sent: Friday, February 21, 2003 9:19 AM
To: xerces-j-user@(protected)
Subject: Validating with external entities and schemas 1.4.4 vs 2.3.0
I have a document with structure similar to the xml below. When I use
Xerces 1.4.4, I am able to validate the document against the schema without
any problems. When I use Xerces 2.3.0 the validation tells me that all of
the elements in each of the entities need to be defined (however they are
defined in the schema.) It appears to me that the xerces is searching the
DTD for the ANY elements without referencing the schema. Any explanation as
to why it works in 1.4.4 and not 2.3.0. I would also appreciate any
recommendations as to what I need to do to make it work in 2.3.0.
Thanks, Carl
<?xml version="1.0" encoding="UTF-8" ?>
<!-- leagues are validated against the league.xsd schema.
The DOCTYPE is included to provide ENTITY references to embedded xml files
-->
<!DOCTYPE league[
<!ELEMENT league ANY>
<!ENTITY team1 SYSTEM "someUrl">
<!ENTITY team2 SYSTEM "someUrl2">
]>
<leauge xmlns=" http://www.myLeague.com <http://www.myLeague.com> "
xmlns:xsi=" http://www.w3.org/2001/XMLSchema-instance
<http://www.w3.org/2001/XMLSchema-instance> "
xsi:schemaLocation=" http://www.myLeague.com <http://www.myLeague.com>
someUrl3">
&team1;
&team2;
</league>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML><HEAD>
<META HTTP-EQUIV="Content-Type" CONTENT="text/html; charset=iso-8859-1">
<TITLE>Validating with external entities and schemas 1.4.4 vs 2.3.0</TITLE>
<META content="MSHTML 6.00.2600.0" name=GENERATOR></HEAD>
<BODY>
<DIV><SPAN class=984011315-21022003><FONT face=Tahoma color=#0000ff size=4>For
more on the same problem, see my unanswered emails in the
archives...</FONT></SPAN></DIV>
<DIV><SPAN class=984011315-21022003><FONT face=Tahoma color=#0000ff
size=4></FONT></SPAN> </DIV>
<DIV><SPAN class=984011315-21022003><FONT face=Tahoma color=#0000ff size=4><U
>To
save you some pain:</U></FONT></SPAN></DIV>
<DIV><SPAN class=984011315-21022003><FONT face=Tahoma color=#0000ff
size=4>Basically, schema does not address physical doc items like
entities...they are </FONT></SPAN><SPAN class=984011315-21022003><FONT
face=Tahoma color=#0000ff size=4>like word-processor macros that live in the
physical world, not the logical.</FONT></SPAN></DIV>
<DIV><SPAN class=984011315-21022003><FONT face=Tahoma color=#0000ff
size=4></FONT></SPAN> </DIV>
<DIV><SPAN class=984011315-21022003><FONT face=Tahoma color=#0000ff
size=4>Schema addresses the logical doc, so entities beyond the built-in
</FONT></SPAN><SPAN class=984011315-21022003><FONT face=Tahoma color=#0000ff
size=4>must be pre-processed out by you before the parser ever sees the
file.</FONT></SPAN></DIV>
<DIV><SPAN class=984011315-21022003><FONT face=Tahoma color=#0000ff
size=4></FONT></SPAN> </DIV>
<DIV><SPAN class=984011315-21022003><FONT face=Tahoma color=#0000ff size=4>My
guess is that the mutant "combo" document worked with old versions of
the parser by pure luck. Unfortunately, the default parser in XML Spy
also
parses these Frankensteins without errors, giving you the illusion that you
might be able to use such a thing in production.</FONT></SPAN></DIV>
<DIV> </DIV>
<P><I><FONT face="Comic Sans MS" color=#0000ff>Walt Fitzharris</FONT></I> </P>
<P class=MsoNormal
style="MARGIN: 0in 0in 0pt; mso-layout-grid-align: none"><FONT face=Tahoma
size=2>-----Original Message-----<BR><B>From:</B> Stottlemyer, Carl
[mailto:carl.stottlemyer@(protected)]<BR><B>Sent:</B> Friday, February 21, 2003
9:19 AM<BR><B>To:</B> xerces-j-user@(protected)<BR><B>Subject:</B>
Validating
with external entities and schemas 1.4.4 vs 2.3.0<BR><BR></P></FONT>
<P><FONT face=Arial size=2>I have a document with structure similar to the xml
below. When I use Xerces 1.4.4, I am able to validate the document
against
the schema without any problems. When I use Xerces 2.3.0 the validation
tells me that all of the elements in each of the entities need to be defined
(however they are defined in the schema.) It appears to me that the
xerces
is searching the DTD for the ANY elements without referencing the schema.
Any explanation as to why it works in 1.4.4 and not 2.3.0. I would also
appreciate any recommendations as to what I need to do to make it work in
2.3.0.</FONT></P>
<P><FONT face=Arial size=2>Thanks, Carl</FONT> </P>
<P><FONT face=Arial size=2><?xml version="1.0" encoding="UTF-8" ?></FONT>
<BR><FONT face=Arial size=2><!-- leagues are validated against the league
.xsd
schema.</FONT> <BR><FONT face=Arial size=2>The DOCTYPE is included to provide
ENTITY references to embedded xml files</FONT> <BR><FONT face=Arial
size=2>--></FONT> <BR><FONT face=Arial size=2><!DOCTYPE league[</FONT>
<BR><FONT face=Arial size=2> <!ELEMENT league
ANY></FONT> <BR><FONT face=Arial size=2> <!ENTITY team1
SYSTEM
"someUrl"> </FONT><BR><FONT face=Arial
size=2> <!ENTITY team2 SYSTEM
"someUrl2">  
;
</FONT><BR><FONT face=Arial size=2>]></FONT> <BR><FONT face=Arial
size=2><leauge xmlns="<A href="http://www.myLeague.com"
target=_blank>http://www.myLeague.com</A>"</FONT> <BR><FONT face=Arial
size=2> xmlns:xsi="<A href="http://www.w3.org/2001/XMLSchema-instance"
target=_blank>http://www.w3.org/2001/XMLSchema-instance</A>"</FONT> <BR><FONT
face=Arial size=2> xsi:schemaLocation="<A href="http://www.myLeague.com"
target=_blank>http://www.myLeague.com</A></FONT>
<BR>
<FONT face=Arial
size=2> someUrl3"></FONT> <BR><FONT face=Arial
size=2>&team1;</FONT> <BR><FONT face=Arial size=2>&team2;</FONT>
<BR><FONT face=Arial size=2></league></FONT> </P></BODY></HTML>
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