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Re: [docbook-apps] Bug(?) in VERSION XSL file or in resolver?

From: Larry Garfield <larry at garfieldtech dot com>
To: DocBook Apps <docbook-apps at lists dot oasis-open dot org>
Date: Tue, 05 Apr 2005 00:24:39 -0500
Subject: Re: [docbook-apps] Bug(?) in VERSION XSL file or in resolver?
References: <42512574.6070104@garfieldtech.com> <04e001c53951$8fdf2fb0$6400a8c0@toshiro>

Bob Stayton wrote:

I don't believe the VERSION file is triggering access to the internet to
read the DTD. If you are getting web accesses to the DTD instead of the
stylesheet files, then the problem seems to be with the catalog resolution
of the document's DOCTYPE identifiers.  I would be curious to see what the
whole verbose output from the resolver looks like.

Hm, interesting syntactic trick. So document('') is equivalent to /?

The following is a simplified version of the catalog file (mostly C&P from TCG), an excerpt from Ant, and the result of setting the verbosity level to 2. (Anything more generated a lot more lines that didn't seem to have any relevant information, so I left it out to not abuse people's inboxes. <g>)

catalog.xml (simplified formatting)
-------------------------------

<?xml version="1.0"?>
<catalog xmlns="urn:oasis:names:tc:entity:xmlns:xml:catalog">
<group  prefer="public"  xml:base="/usr/share/xml/docbook/schema/dtd/4.3/" >

<public publicId="-//OASIS//ELEMENTS DocBook XML HTML Tables V4.3//EN"
	uri="htmltblx.mod"/>
<public publicId="-//OASIS//DTD DocBook XML V4.3//EN"
	uri="docbookx.dtd"/>
<system
systemId="http://www.oasis-open.org/docbook/xml/4.3/docbookx.dtd";
uri="docbookx.dtd"/>
<nextCatalog  catalog="catalog.xml" />
</group>

<group xml:base="/usr/share/xml/docbook/stylesheet/nwalsh/">
	<uri name="docbook.xsl" uri="html/docbook.xsl" />
	<uri name="chunk.xsl" uri="html/chunk.xsl" />
	<uri name="onechunk.xsl" uri="html/onechunk.xsl" />
	<uri name="fo-docbook.xsl" uri="fo/docbook.xsl" />
	<uri name="chunk-common.xsl" uri="html/chunk-common.xsl" />
	<uri name="manifest.xsl" uri="html/manifest.xsl" />
	<uri name="chunk-code.xsl" uri="html/chunk-code.xsl" />
</group>
</catalog>

build.xml (excerpt, whitespace reformatted)
-------------------------------

<?xml version="1.0"?>
<project name="generate" basedir="" default="all">

...

<target name="html.onefile">
<java classname="${xslt.processor.class}" fork="yes" failonerror="true">
	<classpath refid="xslt.processor.classpath" />
	<jvmarg value="-Djavax.xml.parsers.DocumentBuilderFactory=
		org.apache.xerces.jaxp.DocumentBuilderFactoryImpl"/>
	<jvmarg value="-Djavax.xml.parsers.SAXParserFactory=
		org.apache.xerces.jaxp.SAXParserFactoryImpl"/>
	<jvmarg
	value="-Dorg.apache.xerces.xni.parser.XMLParserConfiguration=
		org.apache.xerces.parsers.XIncludeParserConfiguration"/>
	<arg line="-r ${catalog.resolver.class}"/>
	<arg line="-u"/>
	<arg line="-o library.html"/>
	<arg line="${source.dir}/set.xml"/>
	<arg line="${xslPath}/html/docbook.xsl" />
	<arg line="base.dir=${build.dir}/" />
</java>
</target>

...

</project>


Result of command 'ant html.onefile' (doesn't wrap nicely):
-----------------------------------------

html.onefile: [java] Loading catalog: file:/home/lgarfiel/public_html/stflib/catalog.xml [java] Loading catalog: file:/usr/share/xml/docbook/schema/dtd/4.3/catalog.xml [java] Loading catalog: file:/etc/sgml/docbook.cat [java] Loading catalog: file:/usr/share/sgml/docbook/dtd/catalog [java] Loading catalog: file:/usr/share/sgml/docbook/dtd/2.4.1/catalog [java] Loading catalog: file:/usr/share/sgml/docbook/dtd/3.0/catalog [java] Loading catalog: file:/usr/share/sgml/docbook/dtd/3.1/catalog [java] Loading catalog: file:/usr/share/sgml/docbook/dtd/4.0/catalog [java] Loading catalog: file:/usr/share/sgml/docbook/dtd/4.1/catalog [java] Loading catalog: file:/usr/share/sgml/docbook/dtd/4.2/catalog [java] Loading catalog: file:/usr/share/sgml/docbook/dtd/4.3/catalog [java] Resolved URI: src/set.xml [java] file:/home/lgarfiel/public_html/stflib/src/set.xml [java] Resolved URI: /usr/share/xml/docbook/stylesheet/nwalsh/html/docbook.xsl [java] file:/usr/share/xml/docbook/stylesheet/nwalsh/html/docbook.xsl [java] Resolved URI: ../VERSION [java] file:/usr/share/xml/docbook/stylesheet/nwalsh/VERSION [java] Resolved URI: param.xsl [java] file:/usr/share/xml/docbook/stylesheet/nwalsh/html/param.xsl [java] Resolved URI: ../lib/lib.xsl [java] file:/usr/share/xml/docbook/stylesheet/nwalsh/lib/lib.xsl [java] Resolved URI: ../common/l10n.xsl [java] file:/usr/share/xml/docbook/stylesheet/nwalsh/common/l10n.xsl [java] Resolved URI: ../common/common.xsl [java] file:/usr/share/xml/docbook/stylesheet/nwalsh/common/common.xsl [java] Resolved URI: ../common/labels.xsl [java] file:/usr/share/xml/docbook/stylesheet/nwalsh/common/labels.xsl [java] Resolved URI: ../common/titles.xsl [java] file:/usr/share/xml/docbook/stylesheet/nwalsh/common/titles.xsl [java] Resolved URI: ../common/subtitles.xsl [java] file:/usr/share/xml/docbook/stylesheet/nwalsh/common/subtitles.xsl [java] Resolved URI: ../common/gentext.xsl [java] file:/usr/share/xml/docbook/stylesheet/nwalsh/common/gentext.xsl [java] Resolved URI: ../common/targets.xsl [java] file:/usr/share/xml/docbook/stylesheet/nwalsh/common/targets.xsl [java] Resolved URI: ../common/olink.xsl [java] file:/usr/share/xml/docbook/stylesheet/nwalsh/common/olink.xsl [java] Resolved URI: ../common/pi.xsl [java] file:/usr/share/xml/docbook/stylesheet/nwalsh/common/pi.xsl [java] Resolved URI: autotoc.xsl [java] file:/usr/share/xml/docbook/stylesheet/nwalsh/html/autotoc.xsl [java] Resolved URI: autoidx.xsl [java] file:/usr/share/xml/docbook/stylesheet/nwalsh/html/autoidx.xsl [java] Resolved URI: lists.xsl [java] file:/usr/share/xml/docbook/stylesheet/nwalsh/html/lists.xsl [java] Resolved URI: callout.xsl [java] file:/usr/share/xml/docbook/stylesheet/nwalsh/html/callout.xsl [java] Resolved URI: verbatim.xsl [java] file:/usr/share/xml/docbook/stylesheet/nwalsh/html/verbatim.xsl [java] Resolved URI: graphics.xsl [java] file:/usr/share/xml/docbook/stylesheet/nwalsh/html/graphics.xsl [java] Resolved URI: xref.xsl [java] file:/usr/share/xml/docbook/stylesheet/nwalsh/html/xref.xsl [java] Resolved URI: formal.xsl [java] file:/usr/share/xml/docbook/stylesheet/nwalsh/html/formal.xsl [java] Resolved URI: table.xsl [java] file:/usr/share/xml/docbook/stylesheet/nwalsh/html/table.xsl [java] Resolved URI: ../common/table.xsl [java] file:/usr/share/xml/docbook/stylesheet/nwalsh/common/table.xsl [java] Resolved URI: htmltbl.xsl [java] file:/usr/share/xml/docbook/stylesheet/nwalsh/html/htmltbl.xsl [java] Resolved URI: sections.xsl [java] file:/usr/share/xml/docbook/stylesheet/nwalsh/html/sections.xsl [java] Resolved URI: inline.xsl [java] file:/usr/share/xml/docbook/stylesheet/nwalsh/html/inline.xsl [java] Resolved URI: footnote.xsl [java] file:/usr/share/xml/docbook/stylesheet/nwalsh/html/footnote.xsl [java] Resolved URI: html.xsl [java] file:/usr/share/xml/docbook/stylesheet/nwalsh/html/html.xsl [java] Resolved URI: info.xsl [java] file:/usr/share/xml/docbook/stylesheet/nwalsh/html/info.xsl [java] Resolved URI: keywords.xsl [java] file:/usr/share/xml/docbook/stylesheet/nwalsh/html/keywords.xsl [java] Resolved URI: division.xsl [java] file:/usr/share/xml/docbook/stylesheet/nwalsh/html/division.xsl [java] Resolved URI: toc.xsl [java] file:/usr/share/xml/docbook/stylesheet/nwalsh/html/toc.xsl [java] Resolved URI: index.xsl [java] file:/usr/share/xml/docbook/stylesheet/nwalsh/html/index.xsl [java] Resolved URI: refentry.xsl [java] file:/usr/share/xml/docbook/stylesheet/nwalsh/html/refentry.xsl [java] Resolved URI: math.xsl [java] file:/usr/share/xml/docbook/stylesheet/nwalsh/html/math.xsl [java] Resolved URI: admon.xsl [java] file:/usr/share/xml/docbook/stylesheet/nwalsh/html/admon.xsl [java] Resolved URI: component.xsl [java] file:/usr/share/xml/docbook/stylesheet/nwalsh/html/component.xsl [java] Resolved URI: biblio.xsl [java] file:/usr/share/xml/docbook/stylesheet/nwalsh/html/biblio.xsl [java] Resolved URI: glossary.xsl [java] file:/usr/share/xml/docbook/stylesheet/nwalsh/html/glossary.xsl [java] Resolved URI: block.xsl [java] file:/usr/share/xml/docbook/stylesheet/nwalsh/html/block.xsl [java] Resolved URI: task.xsl [java] file:/usr/share/xml/docbook/stylesheet/nwalsh/html/task.xsl [java] Resolved URI: qandaset.xsl [java] file:/usr/share/xml/docbook/stylesheet/nwalsh/html/qandaset.xsl [java] Resolved URI: synop.xsl [java] file:/usr/share/xml/docbook/stylesheet/nwalsh/html/synop.xsl [java] Resolved URI: titlepage.xsl [java] file:/usr/share/xml/docbook/stylesheet/nwalsh/html/titlepage.xsl [java] Resolved URI: titlepage.templates.xsl [java] file:/usr/share/xml/docbook/stylesheet/nwalsh/html/titlepage.templates.xsl [java] Resolved URI: pi.xsl [java] file:/usr/share/xml/docbook/stylesheet/nwalsh/html/pi.xsl [java] Resolved URI: ebnf.xsl [java] file:/usr/share/xml/docbook/stylesheet/nwalsh/html/ebnf.xsl [java] Resolved URI: chunker.xsl [java] file:/usr/share/xml/docbook/stylesheet/nwalsh/html/chunker.xsl [java] Resolved URI: html-rtf.xsl [java] file:/usr/share/xml/docbook/stylesheet/nwalsh/html/html-rtf.xsl [java] Resolved URI: docbookng.xsl [java] file:/usr/share/xml/docbook/stylesheet/nwalsh/html/docbookng.xsl

*~30 second pause here while an HTTP request is sent to the Oasis web site to download most or all of the DocBook DTD*

[java] Resolved URI:
[java]     file:/usr/share/xml/docbook/stylesheet/nwalsh/VERSION
[java] Resolved URI: ../common/l10n.xml
[java]     file:/usr/share/xml/docbook/stylesheet/nwalsh/common/l10n.xml
[java] Resolved URI:
[java]     file:/usr/share/xml/docbook/stylesheet/nwalsh/common/l10n.xsl

------------------------------

I've tried different customized stylesheets, and while the XSL file resolved right before the download varies with the stylesheet it's always right before the VERSION resolution.

I also just tried changing line 8 of VERSION to read:

<xsl:param name="VERSION">1.66.1</xsl:param>

so that it doesn't have to resolve anything. When I did that, the last few lines of debug out put read:

[java] Resolved URI: html-rtf.xsl
[java]     file:/usr/share/xml/docbook/stylesheet/nwalsh/html/html-rtf.xsl
[java] Resolved URI: docbookng.xsl
[java]     file:/usr/share/xml/docbook/stylesheet/nwalsh/html/docbookng.xsl

*~30 second pause here while an HTTP request is sent to the Oasis web site to download most or all of the DocBook DTD*

[java] Resolved URI: ../common/l10n.xml
[java]     file:/usr/share/xml/docbook/stylesheet/nwalsh/common/l10n.xml
[java] Resolved URI:
[java]     file:/usr/share/xml/docbook/stylesheet/nwalsh/common/l10n.xsl

So now I'm even more confused. :-) Any suggestions what to try next, Bob or someone?

--
Larry Garfield			AIM: LOLG42
larry@garfieldtech.com		ICQ: 6817012

"If nature has made any one thing less susceptible than all others of exclusive property, it is the action of the thinking power called an idea, which an individual may exclusively possess as long as he keeps it to himself; but the moment it is divulged, it forces itself into the possession of every one, and the receiver cannot dispossess himself of it." -- Thomas Jefferson

Follow-Ups:
- Re: [docbook-apps] Bug(?) in VERSION XSL file or in resolver?
  - From: Bob Stayton

References:
- [docbook-apps] Bug(?) in VERSION XSL file or in resolver?
  - From: Larry Garfield
- Re: [docbook-apps] Bug(?) in VERSION XSL file or in resolver?
  - From: Bob Stayton

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