Re: Still serious problems with psgml 1.2.5

My conjection is that it is the complexity of the DocBook DTD which causes
psgml to get confused.

I experimented with the following tinybook.dtd

<!ELEMENT book (title?,chapter+)>
<!ELEMENT chapter (title?,para+)>
<!ELEMENT title (#PCDATA)>
<!ELEMENT para (#PCDATA)>

and the two split files

testbook.xml:

<?xml version="1.0" ?>
<!DOCTYPE book    SYSTEM "tinybook.dtd"
[
<!ENTITY chapter1 SYSTEM "chapter1.xml">
]>
<book>
   <title>To split or not to split</title>
   &chapter1;
</book>
<!-- Keep this comment at the end of the file
Local variables:
mode: xml
sgml-default-dtd-file:"testbook.ced"
End:
-->

and chapter1.xml:

<?xml version="1.0"?>
<chapter>
   <title>The first and glorious chapter</title>
   <para>A first and great paragraph</para>
</chapter>
<!-- Keep this comment at the end of the file
Local variables:
mode: xml
sgml-parent-document:("testbook.xml" "book" "chapter")
End:
-->


Here, everything works fine. Loading chapter1.xml starts psgml and the
context-sensitive inserting mechanism works correctly right from the
beginning.


Well, nearly everything: There's something wrong with the setting of 
variables
by the user:
When clicking on "SGML" -> "File Options" -> "Parent Document" the user is
asked to
enter the value of the variable into the minibuffer. But whatever I 
enter, the
value always stays "nil".
I had to enter the corresp. value by hand into the comment at the end of 
the
file



I've also made some experiments with the original DocBook-DTD at home 
with my SuSE-Linux precompiled XEmacs
21.1 and the precompiled psgml 1.2.3, which is automaically loaded when I
load the following minimal chapter1.xml:

<?xml version="1.0" encoding="ISO-8859-1" ?>
<chapter>
<title>A great title</title>
<para>A great paragraph.</para>
</chapter>
<!--
     Local Variables:
     mode: xml
     sgml-parent-document:("LEDATutorium.xml" "book" "chapter")
     End:
-->


Exactly the same problems arise:

1) Pressing C-c C-e and TAB after <chapter> gives

Possible completions are:
ABBREV			  GUIBUTTON		    REFERENCE
ABSTRACT		  GUIICON		    REFERENCEINFO
ACCEL			  GUILABEL		    REFMETA
ACKNO			  GUIMENU		    REFMISCINFO

and all the rest...

2) sgml-show-context at this position gives

Current element: chapter  [UNDEFINED]
Element content: mixed  [ANY]
Valid end-tags : </chapter>
Valid start-tags
In current element: (in ANY)

3) In the parent file "LEDATutorium.xml" however, everything works fine. 
I've
stripped down the master file to the following version:

<?xml version="1.0" encoding="ISO-8859-1" standalone="no"?>
<!DOCTYPE book
     PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
            "dummy-URL"
[
<!ENTITY chapter1 SYSTEM "chapter1.xml">
]>

<book lang="de" status="draft">
&chapter1;
</book>

<!-- Keep this comment at the end of the file
Local variables:
mode: xml
sgml-omittag:t
sgml-shorttag:t
sgml-namecase-general:t
sgml-general-insert-case:lower
sgml-minimize-attributes:nil
sgml-always-quote-attributes:t
sgml-indent-step:2
sgml-indent-data:nil
sgml-parent-document:nil
sgml-default-dtd-file:"LEDATutorium.ced"
sgml-exposed-tags:nil
sgml-local-catalogs:nil
sgml-local-ecat-files:nil
End:
-->


So both my versions of Xemacs at home (everything precompiled by SuSE) and
Emacs and Xemacs at work (under Solaris) show this erroneous behaviour.

4) Now to go completely crazy: *sometimes* it works as it should in
chapter1.xml and *sometimes not* in the master file, but I cannot reproduce
this behaviour. The meaning of 'sometimes' is: 1 hour ago, everything 
worked
fine, now it does'nt work any more and I can't remember having changed
anything substantially.


Joachim



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