From kamel.hamard at ericsson.com  Wed Oct  1 23:13:47 2003
From: kamel.hamard at ericsson.com (Kamel Hamard (QC/EMC))
Date: Wed Oct  1 23:18:19 2003
Subject: [XML-SIG] Memory Problem
Message-ID: <2DBF697D5B36014ABA46E66A96107DA072061F@lmc37.lmc.ericsson.se>

Hi,

I'm getting errors when executing my python program which is using 4Suite.

Here are the errors:

sys.excepthook is missing
Traceback (most recent call last):
  File "/opt/Py/lib/python2.2/site-packages/Ft/Xml/Xslt/StylesheetHandler.py", line 618, in _combine_stylesheet
    include = self.clone().fromSrc(new_source)
  File "/opt/Py/lib/python2.2/site-packages/Ft/Xml/Xslt/StylesheetReader.py", line 159, in fromSrc
    stylesheet =  self._parseSrc(new_source)
  File "/opt/Py/lib/python2.2/site-packages/Ft/Xml/Xslt/StylesheetReader.py", line 179, in _parseSrc
    success = self.parser.ParseFile(src.stream)
  File "/opt/Py/lib/python2.2/site-packages/Ft/Xml/Xslt/StylesheetHandler.py", line 360, in startElement
    inst_dict[instance_var_name] = value
<unknown>MemoryError
Error in sys.exitfunc:
Traceback (most recent call last):
  File "/opt/Py/lib/python2.2/atexit.py", line 20, in _run_exitfuncs
    apply(func, targs, kargs)
  File "/opt/Py/lib/python2.2/threading.py", line 538, in __exitfunc
    t = _pickSomeNonDaemonThread()
  File "/opt/Py/lib/python2.2/threading.py", line 550, in _pickSomeNonDaemonThread
    for t in enumerate():
MemoryError

Is it possible to have an idea about the problem?

Is it possible that the dom is consuming lot of memory  when using XSL API?

I'm able to get my document in XML but when I start transforming it with XSL API, the script crashes.

/Regards

From noreply at sourceforge.net  Thu Oct  2 05:28:35 2003
From: noreply at sourceforge.net (SourceForge.net)
Date: Thu Oct  2 05:28:40 2003
Subject: [XML-SIG] [ pyxml-Bugs-816442 ] Code error on Windows,
	py2.3 : no attribute "_id_cache"
Message-ID: <E1A4zlD-0000PF-00@sc8-sf-web2.sourceforge.net>

Bugs item #816442, was opened at 2003-10-02 11:28
Message generated for change (Tracker Item Submitted) made by Item Submitter
You can respond by visiting: 
https://sourceforge.net/tracker/?func=detail&atid=106473&aid=816442&group_id=6473

Category: DOM
Group: None
Status: Open
Resolution: None
Priority: 5
Submitted By: C?dric Dutoit (dutoitc)
Assigned to: Nobody/Anonymous (nobody)
Summary: Code error on Windows, py2.3 : no attribute "_id_cache"

Initial Comment:
Code error on Windows, py2.3 :





The following code :

    a=Document()

    b=Element("x")

    a.appendChild(b)



Give me the following error :

"NoneType" object has no attribute "_id_cache"

exceptions.AttributeError



in

    ...

    ...minidom.py, 126, appendChild, _clear_id_cache(self)

    ... minidom.py, 1461, _clear_id_cache, 

node.ownerDocument._id_cache.clear()





Where does this error come from ?

I think that this is related to Python 2.3.



I've the following versions :

Python 2.3.1

pyxml-0.8.3.win32-py2.3.exe





Thanks in advance for your help,



C.Dutoit

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

You can respond by visiting: 
https://sourceforge.net/tracker/?func=detail&atid=106473&aid=816442&group_id=6473

From noreply at sourceforge.net  Thu Oct  2 06:50:05 2003
From: noreply at sourceforge.net (SourceForge.net)
Date: Thu Oct  2 06:50:08 2003
Subject: [XML-SIG] [ pyxml-Bugs-816478 ] Code error on Windows,
	py2.3 : no attribute "_id_cache"
Message-ID: <E1A5125-0001s3-00@sc8-sf-web3.sourceforge.net>

Bugs item #816478, was opened at 2003-10-02 12:50
Message generated for change (Tracker Item Submitted) made by Item Submitter
You can respond by visiting: 
https://sourceforge.net/tracker/?func=detail&atid=106473&aid=816478&group_id=6473

Category: DOM
Group: None
Status: Open
Resolution: None
Priority: 5
Submitted By: C?dric Dutoit (dutoitc)
Assigned to: Nobody/Anonymous (nobody)
Summary: Code error on Windows, py2.3 : no attribute "_id_cache"

Initial Comment:
Code error on Windows, py2.3 :





The following code :

    a=Document()

    b=Element("x")

    a.appendChild(b)



Give me the following error :

"NoneType" object has no attribute "_id_cache"

exceptions.AttributeError



in

    ...

    ...minidom.py, 126, appendChild, _clear_id_cache(self)

    ... minidom.py, 1461, _clear_id_cache, 

node.ownerDocument._id_cache.clear()





Where does this error come from ?

I think that this is related to Python 2.3.



I've the following versions :

Python 2.3.1

pyxml-0.8.3.win32-py2.3.exe





Thanks in advance for your help,



C.Dutoit

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

You can respond by visiting: 
https://sourceforge.net/tracker/?func=detail&atid=106473&aid=816478&group_id=6473

From KSBeattie at lbl.gov  Thu Oct  2 18:33:00 2003
From: KSBeattie at lbl.gov (Keith Beattie)
Date: Thu Oct  2 18:33:04 2003
Subject: [XML-SIG] Source Forge cvs login troubles
Message-ID: <3F7CA79C.5080903@lbl.gov>

Thought I'd try to patch the recent issue I found in c14n, but I can't 
seem to get started with cvs from sourceforge:

$ cvs -t -d :pserver:anonymous@cvs.sourceforge.net:/cvsroot/pyxml login
  -> main loop with 
CVSROOT=:pserver:anonymous@cvs.sourceforge.net:/cvsroot/pyxml
Logging in to :pserver:anonymous@cvs.sourceforge.net:2401/cvsroot/pyxml
CVS password:
  -> Connecting to cvs.sourceforge.net(66.35.250.207):2401
cvs [login aborted]: end of file from server (consult above messages if any)
  -> Lock_Cleanup()
$

~/.cvspass isn't created, and this has been happening all day.  Any 
suggestions?  Or is this a load issue on cvs.sourceforge.net?

Thanks,
ksb


From rsalz at datapower.com  Thu Oct  2 21:27:31 2003
From: rsalz at datapower.com (Rich Salz)
Date: Thu Oct  2 21:27:35 2003
Subject: [XML-SIG] Source Forge cvs login troubles
In-Reply-To: <3F7CA79C.5080903@lbl.gov>
Message-ID: <Pine.LNX.4.44L0.0310022126520.5325-100000@smtp.datapower.com>

SF recently put out a note about how their CVS servers are way overloaded,
and that they're moving anon-cvs off to another bank of machines, but that
copying the repositories takes days.

--
Rich Salz                  Chief Security Architect
DataPower Technology       http://www.datapower.com
XS40 XML Security Gateway  http://www.datapower.com/products/xs40.html
XML Security Overview      http://www.datapower.com/xmldev/xmlsecurity.html


From Ferg.Stephen at bls.gov  Fri Oct  3 08:42:28 2003
From: Ferg.Stephen at bls.gov (Ferg, Stephen - BLS)
Date: Fri Oct  3 08:42:35 2003
Subject: [XML-SIG] a PDF version of the XML how-to?
Message-ID: <F483FBEE45D09F49903D169A6E0073240208A733@PSBMAIL1>

On http://pyxml.sourceforge.net/topics/docs.html
<http://pyxml.sourceforge.net/topics/docs.html>  there is a link to the XML
how-to in HTML format.  Is there a PDF version available, so I can print it
all easily?

-- Steve
<name>  Stephen Ferg    </name>
<email>  ferg_s@bls.gov   </email>
<phone> 202-691-7257 </phone>
<address>
Bureau of Labor Statistics, Room 5110
2 Mass. Ave. NE
Washington, DC 20212-0001
USA
</address>


From Radovan.Chytracek at cern.ch  Fri Oct  3 08:49:09 2003
From: Radovan.Chytracek at cern.ch (Radovan Chytracek)
Date: Fri Oct  3 09:38:53 2003
Subject: [XML-SIG] a PDF version of the XML how-to?
Message-ID: <AC71B50DCA239B469EE08BABF32AD278D8E212@cernxchg01.cern.ch>

Hi,

   I produced it from text source, see attached

Cheers

         Radovan

> -----Original Message-----
> From: Ferg, Stephen - BLS [mailto:Ferg.Stephen@bls.gov] 
> Sent: Friday, October 03, 2003 2:42 PM
> To: 'xml-sig@python.org'
> Subject: [XML-SIG] a PDF version of the XML how-to?
> 
> 
> On http://pyxml.sourceforge.net/topics/docs.html
> <http://pyxml.sourceforge.net/topics/docs.html>  there is a 
> link to the XML how-to in HTML format.  Is there a PDF 
> version available, so I can print it all easily?
> 
> -- Steve
> <name>  Stephen Ferg    </name>
> <email>  ferg_s@bls.gov   </email>
> <phone> 202-691-7257 </phone>
> <address>
> Bureau of Labor Statistics, Room 5110
> 2 Mass. Ave. NE
> Washington, DC 20212-0001
> USA
> </address>
> 
> 
> _______________________________________________
> XML-SIG maillist  -  XML-SIG@python.org 
> http://mail.python.org/mailman/listinfo/xml-> sig
> 
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From dkgunter at lbl.gov  Fri Oct  3 11:58:56 2003
From: dkgunter at lbl.gov (Dan Gunter)
Date: Fri Oct  3 11:59:38 2003
Subject: [XML-SIG] xml book recommendation
Message-ID: <3F7D9CC0.9050100@lbl.gov>

As someone who knows XML but not all the details of W3C's XML Schema, I 
found the book "Definitive XML Schema" very useful. It is clearly 
written and covers a lot of ground. Unlike some other books I've seen, 
the author uses actual English prose to describe how things fit 
together, as opposed to some hideous BNF grammar that belongs in a spec, 
not a how-to book.

title: Definitive XML Schema
author: Priscilla Walmsley

- Dan Gunter


From cobra96 at ms9.hinet.net  Mon Oct  6 21:11:48 2003
From: cobra96 at ms9.hinet.net (cobra96@ms9.hinet.net)
Date: Mon Oct  6 23:40:38 2003
Subject: [XML-SIG] windows 98 se can't install pyxml
Message-ID: <200310070111.JAA06297@msr21.hinet.net>

An HTML attachment was scrubbed...
URL: http://mail.python.org/pipermail/xml-sig/attachments/20031007/851934f4/attachment.html
From KSBeattie at lbl.gov  Tue Oct  7 21:52:31 2003
From: KSBeattie at lbl.gov (Keith Beattie)
Date: Tue Oct  7 21:53:10 2003
Subject: [XML-SIG] c14n attribute ordering problem?
In-Reply-To: <Pine.LNX.4.44L0.0309302348430.11459-100000@smtp.datapower.com>
References: <Pine.LNX.4.44L0.0309302348430.11459-100000@smtp.datapower.com>
Message-ID: <3F836DDF.5040803@lbl.gov>

Rich Salz wrote:
> The Python code (which I now think is wrong, not libxml/xmlsec) is:
>     def _sorter_ns(n1,n2):
>         '''_sorter_ns((n,v),(n,v)) -> int
>         "(an empty namespace URI is lexicographically least)."'''
> 
>         if n1[0] == 'xmlns': return -1
>         if n2[0] == 'xmlns': return 1
>         return cmp(n1[0], n2[0])
> 
> Should that cmp be using [1] instead of [0]?

So I've taken a walk through c14n.py and that code isn't getting called 
by my counter-example (of the c14n'ing the sub-node).  It looks like 
_sorter (rather than _sorter_ns, which will do the right thing) is being 
used for sorting those inherited NS attrs at line 324.

I'm still digging at how to fix that, but should I submit a new bug at 
http://sourceforge.net/projects/pyxml/ ?  (I just created an account but 
otherwise I'm a newbie when it comes to contributing to SF projects). 
If so, I assume it would be under the DOM category?

Thanks,
ksb


From amarre at mac.com  Wed Oct  8 20:56:07 2003
From: amarre at mac.com (Alexis Marrero)
Date: Wed Oct  8 20:51:11 2003
Subject: [XML-SIG] Empty string namespace - to bug or not to bug?
Message-ID: <5D99ABE6-F9F3-11D7-95D8-000393D153BC@mac.com>

Is this a bug? Is there any work around?

doc = minidom.parseString('<root xmlns="">value</root>')
doc.toxml()

Traceback (most recent call last):
   File "<stdin>", line 1, in ?
   File  
"/Library/Frameworks/Python.framework/Versions/2.3/lib/python2.3/site- 
packages/_xmlplus/dom/minidom.py", line 47, in toxml
     return self.toprettyxml("", "", encoding)
   File  
"/Library/Frameworks/Python.framework/Versions/2.3/lib/python2.3/site- 
packages/_xmlplus/dom/minidom.py", line 59, in toprettyxml
     self.writexml(writer, "", indent, newl, encoding)
   File  
"/Library/Frameworks/Python.framework/Versions/2.3/lib/python2.3/site- 
packages/_xmlplus/dom/minidom.py", line 1739, in writexml
     node.writexml(writer, indent, addindent, newl)
   File  
"/Library/Frameworks/Python.framework/Versions/2.3/lib/python2.3/site- 
packages/_xmlplus/dom/minidom.py", line 816, in writexml
     _write_data(writer, attrs[a_name].value)
   File  
"/Library/Frameworks/Python.framework/Versions/2.3/lib/python2.3/site- 
packages/_xmlplus/dom/minidom.py", line 304, in _write_data
     data = data.replace("&", "&amp;").replace("<", "&lt;")
AttributeError: 'NoneType' object has no attribute 'replace'

My environment is:
Python 2.3 (#2, Jul 30 2003, 11:45:28)
[GCC 3.1 20020420 (prerelease)] on darwin

Regards,
amn


From Alexandre.Fayolle at logilab.fr  Thu Oct  9 06:13:47 2003
From: Alexandre.Fayolle at logilab.fr (Alexandre Fayolle)
Date: Thu Oct  9 06:13:55 2003
Subject: [XML-SIG] [ANN] xmldiff-0.6.4
Message-ID: <20031009101347.GP23519@calvin>

Logilab has released xmldiff-0.6.4

What's new?
-----------

This release fixes a bug which broke directory processing in recursive
mode. A --help command line option was added to xlmrev, and the
documentation was rewritten in restructured text. 

About xmldiff
-------------

Xmldiff is a Python tool that figures out the differences between two
similar XML files, in the same way the diff utility does for text files. 
The output can use a home brewn format, or XUpdate. 

Xmldiff can also be used as a python module, and use already parsed DOM
trees for input. 

It requires pyxml[1] to be installed. 

Xmldiff is released under the GPL. 

URLs
----

Homepage: http://www.logilab.org/projects/xmldiff/
Download: ftp://ftp.logilab.org/pub/common/xmldiff-0.6.4.tar.gz
Mailing list: http://lists.logilab.org/pipermail/xml-projects/

[1] http://pyxml.sf.net/

-- 
Alexandre Fayolle
LOGILAB, Paris (France).
http://www.logilab.com   http://www.logilab.fr  http://www.logilab.org
D?veloppement logiciel avanc? - Intelligence Artificielle - Formations

From Alexandre.Fayolle at logilab.fr  Thu Oct  9 06:20:04 2003
From: Alexandre.Fayolle at logilab.fr (Alexandre Fayolle)
Date: Thu Oct  9 06:20:11 2003
Subject: [XML-SIG] Re: [ANN] xmldiff-0.6.4
In-Reply-To: <20031009101347.GP23519@calvin>
References: <20031009101347.GP23519@calvin>
Message-ID: <20031009102003.GQ23519@calvin>

On Thu, Oct 09, 2003 at 12:13:47PM +0200, Alexandre Fayolle wrote:
> Download: ftp://ftp.logilab.org/pub/common/xmldiff-0.6.4.tar.gz

Sorry, wrong URL. 

Please use ftp://ftp.logilab.org/pub/xmldiff/xmldiff-0.6.4.tar.gz

-- 
Alexandre Fayolle
LOGILAB, Paris (France).
http://www.logilab.com   http://www.logilab.fr  http://www.logilab.org
D?veloppement logiciel avanc? - Intelligence Artificielle - Formations

From Alexandre.Fayolle at logilab.fr  Thu Oct  9 06:13:47 2003
From: Alexandre.Fayolle at logilab.fr (Alexandre Fayolle)
Date: Fri Oct 10 04:03:39 2003
Subject: [XML-SIG] [ANN] xmldiff-0.6.4
Message-ID: <20031009101347.GP23519@calvin>

Logilab has released xmldiff-0.6.4

What's new?
-----------

This release fixes a bug which broke directory processing in recursive
mode. A --help command line option was added to xlmrev, and the
documentation was rewritten in restructured text. 

About xmldiff
-------------

Xmldiff is a Python tool that figures out the differences between two
similar XML files, in the same way the diff utility does for text files. 
The output can use a home brewn format, or XUpdate. 

Xmldiff can also be used as a python module, and use already parsed DOM
trees for input. 

It requires pyxml[1] to be installed. 

Xmldiff is released under the GPL. 

URLs
----

Homepage: http://www.logilab.org/projects/xmldiff/
Download: ftp://ftp.logilab.org/pub/common/xmldiff-0.6.4.tar.gz
Mailing list: http://lists.logilab.org/pipermail/xml-projects/

[1] http://pyxml.sf.net/

-- 
Alexandre Fayolle
LOGILAB, Paris (France).
http://www.logilab.com   http://www.logilab.fr  http://www.logilab.org
D?veloppement logiciel avanc? - Intelligence Artificielle - Formations

-- 
http://mail.python.org/mailman/listinfo/python-list

From Alexandre.Fayolle at logilab.fr  Thu Oct  9 06:20:04 2003
From: Alexandre.Fayolle at logilab.fr (Alexandre Fayolle)
Date: Fri Oct 10 11:56:37 2003
Subject: [XML-SIG] Re: [ANN] xmldiff-0.6.4
In-Reply-To: <20031009101347.GP23519@calvin>
References: <20031009101347.GP23519@calvin>
Message-ID: <20031009102003.GQ23519@calvin>

On Thu, Oct 09, 2003 at 12:13:47PM +0200, Alexandre Fayolle wrote:
> Download: ftp://ftp.logilab.org/pub/common/xmldiff-0.6.4.tar.gz

Sorry, wrong URL. 

Please use ftp://ftp.logilab.org/pub/xmldiff/xmldiff-0.6.4.tar.gz

-- 
Alexandre Fayolle
LOGILAB, Paris (France).
http://www.logilab.com   http://www.logilab.fr  http://www.logilab.org
D?veloppement logiciel avanc? - Intelligence Artificielle - Formations

-- 
http://mail.python.org/mailman/listinfo/python-list


From Alexandre.Fayolle at logilab.fr  Thu Oct  9 06:13:47 2003
From: Alexandre.Fayolle at logilab.fr (Alexandre Fayolle)
Date: Fri Oct 10 14:54:06 2003
Subject: [XML-SIG] [ANN] xmldiff-0.6.4
Message-ID: <20031009101347.GP23519@calvin>

Logilab has released xmldiff-0.6.4

What's new?
-----------

This release fixes a bug which broke directory processing in recursive
mode. A --help command line option was added to xlmrev, and the
documentation was rewritten in restructured text. 

About xmldiff
-------------

Xmldiff is a Python tool that figures out the differences between two
similar XML files, in the same way the diff utility does for text files. 
The output can use a home brewn format, or XUpdate. 

Xmldiff can also be used as a python module, and use already parsed DOM
trees for input. 

It requires pyxml[1] to be installed. 

Xmldiff is released under the GPL. 

URLs
----

Homepage: http://www.logilab.org/projects/xmldiff/
Download: ftp://ftp.logilab.org/pub/common/xmldiff-0.6.4.tar.gz
Mailing list: http://lists.logilab.org/pipermail/xml-projects/

[1] http://pyxml.sf.net/

-- 
Alexandre Fayolle
LOGILAB, Paris (France).
http://www.logilab.com   http://www.logilab.fr  http://www.logilab.org
D?veloppement logiciel avanc? - Intelligence Artificielle - Formations

-- 
http://mail.python.org/mailman/listinfo/python-list


From and-xml at doxdesk.com  Mon Oct 13 04:40:05 2003
From: and-xml at doxdesk.com (Andrew Clover)
Date: Mon Oct 13 04:55:51 2003
Subject: [XML-SIG] Empty string namespace - to bug or not to bug?
In-Reply-To: <5D99ABE6-F9F3-11D7-95D8-000393D153BC@mac.com>
References: <5D99ABE6-F9F3-11D7-95D8-000393D153BC@mac.com>
Message-ID: <20031013084005.GA31515@doxdesk.com>

Alexis Marrero wrote:

> Is this a bug?

> doc = minidom.parseString('<root xmlns="">value</root>')
> doc.toxml()

IMO yes, but the bug occurs before doc.toxml. After the
parseString call, doc.documentElement.attributes.item(0).value
evaluates to None instead of '' (and it is this that causes the
later exception).

I suspect this code in expatbuilder.py, line 764:

  d = a.childNodes[0].__dict__
  d['data'] = d['nodeValue'] = uri
  d = a.__dict__
  d['value'] = d['nodeValue'] = uri

Adding:

  if uri is None:
    uri= ''

immediately preceding this code seems to fix the problem, though
I haven't investigated whether this is the best way of doing it.

Add to bug tracker [Y|N]?

-- 
Andrew Clover
mailto:and@doxdesk.com
http://www.doxdesk.com/

From tpassin at comcast.net  Mon Oct 13 11:49:51 2003
From: tpassin at comcast.net (Thomas B. Passin)
Date: Mon Oct 13 11:47:56 2003
Subject: [XML-SIG] Empty string namespace - to bug or not to bug?
In-Reply-To: <20031013084005.GA31515@doxdesk.com>
References: <5D99ABE6-F9F3-11D7-95D8-000393D153BC@mac.com>
	<20031013084005.GA31515@doxdesk.com>
Message-ID: <3F8AC99F.7050805@comcast.net>

Andrew Clover wrote:
> Alexis Marrero wrote:
> 
> 
>>Is this a bug?
> 
> 
>>doc = minidom.parseString('<root xmlns="">value</root>')
>>doc.toxml()
> 
> 
> IMO yes, but the bug occurs before doc.toxml. After the
> parseString call, doc.documentElement.attributes.item(0).value
> evaluates to None instead of '' (and it is this that causes the
> later exception).
> 

However, the empty namespace is _supposed_ to be represented by None. 
So the bug actually occurs in whatever code still thinks (from long ago) 
that it should be an empty string instead.


> I suspect this code in expatbuilder.py, line 764:
> 
>   d = a.childNodes[0].__dict__
>   d['data'] = d['nodeValue'] = uri
>   d = a.__dict__
>   d['value'] = d['nodeValue'] = uri
> 
> Adding:
> 
>   if uri is None:
>     uri= ''
> 
> immediately preceding this code seems to fix the problem, though
> I haven't investigated whether this is the best way of doing it.
> 
> Add to bug tracker [Y|N]?
> 

N (better to fix the real problem, which is apparently not here).

Cheers,

Tom P



From fdrake at acm.org  Mon Oct 13 12:27:02 2003
From: fdrake at acm.org (Fred L. Drake, Jr.)
Date: Mon Oct 13 12:27:11 2003
Subject: [XML-SIG] Empty string namespace - to bug or not to bug?
In-Reply-To: <20031013084005.GA31515@doxdesk.com>
References: <5D99ABE6-F9F3-11D7-95D8-000393D153BC@mac.com>
	<20031013084005.GA31515@doxdesk.com> <3F8AC99F.7050805@comcast.net>
Message-ID: <16266.53846.885905.191406@grendel.zope.com>


Andrew Clover writes:
 > IMO yes, but the bug occurs before doc.toxml. After the
 > parseString call, doc.documentElement.attributes.item(0).value
 > evaluates to None instead of '' (and it is this that causes the
 > later exception).

Yep, that's the bug.

 > I suspect this code in expatbuilder.py, line 764:
 > 
 >   d = a.childNodes[0].__dict__
 >   d['data'] = d['nodeValue'] = uri
 >   d = a.__dict__
 >   d['value'] = d['nodeValue'] = uri

As well you should!  ;-)

 > Adding:
 > 
 >   if uri is None:
 >     uri= ''
 > 
 > immediately preceding this code seems to fix the problem, though
 > I haven't investigated whether this is the best way of doing it.
 > 
 > Add to bug tracker [Y|N]?

No.  I've just checked in the fix, so there's no need.

Thomas:  You're right that None should be used for the namespaceURI
for the empty namespace, but it shouldn't be used as the value for the
attribute.  The attribute value itself is still the empty string.


  -Fred

-- 
Fred L. Drake, Jr.  <fdrake at acm.org>
PythonLabs at Zope Corporation

From tpassin at comcast.net  Mon Oct 13 15:54:36 2003
From: tpassin at comcast.net (Thomas B. Passin)
Date: Mon Oct 13 15:52:39 2003
Subject: [XML-SIG] Empty string namespace - to bug or not to bug?
In-Reply-To: <16266.53846.885905.191406@grendel.zope.com>
References: <5D99ABE6-F9F3-11D7-95D8-000393D153BC@mac.com>	<20031013084005.GA31515@doxdesk.com>	<3F8AC99F.7050805@comcast.net>
	<16266.53846.885905.191406@grendel.zope.com>
Message-ID: <3F8B02FC.2070608@comcast.net>



Fred L. Drake, Jr. wrote:

> Thomas:  You're right that None should be used for the namespaceURI
> for the empty namespace, but it shouldn't be used as the value for the
> attribute.  The attribute value itself is still the empty string.
> 

Oh, yes, I see it.  I missed that we were still looking at the attribute 
itself.

Cheers,

Tom P



From and-xml at doxdesk.com  Tue Oct 14 05:10:30 2003
From: and-xml at doxdesk.com (Andrew Clover)
Date: Tue Oct 14 05:26:14 2003
Subject: [XML-SIG] Empty string namespace - to bug or not to bug?
In-Reply-To: <3F8AC99F.7050805@comcast.net>
References: <5D99ABE6-F9F3-11D7-95D8-000393D153BC@mac.com>
	<20031013084005.GA31515@doxdesk.com> <3F8AC99F.7050805@comcast.net>
Message-ID: <20031014091030.GA32079@doxdesk.com>

Thomas B. Passin <tpassin@comcast.net> wrote:

> However, the empty namespace is _supposed_ to be represented by 
> None.

Incidentally, judging by this posting:

  http://lists.w3.org/Archives/Public/www-dom/2003JulSep/0141.html

it would seem that in the next draft (CR) of DOM 3 Core, it will be
required for implementations to accept '' as an input value to
functions that accept a namespaceURI, as an alternative to None.
How irritating! It seems to me this is *more* likely to cause bugs
in XML applications...

-- 
Andrew Clover
mailto:and@doxdesk.com
http://www.doxdesk.com/

From petri.savolainen at iki.fi  Tue Oct 14 13:51:33 2003
From: petri.savolainen at iki.fi (Petri Savolainen)
Date: Tue Oct 14 13:50:48 2003
Subject: [XML-SIG] pyxml0.8.3/minidom/getElementById still broken???
Message-ID: <bmhcsm$hum$1@sea.gmane.org>

Information at http://pyxml.sourceforge.net/topics/compliance.html claims it
is fixed in this version. The same document seems to say a version of
minidom that comes with python2.3 (running that) also works.

Yet, running RH9 and having the right version installed (on python 2.3),
it fails on me, not returning anything where it clearly should. I've
doublechecked and doublechecked everything I can think of.

Also, using the same PyXML, xpath query: "//*[id=%s]" % myid delivers the
node I want to get. But not document.getElementById...

I tried google and newsgroup search but found nothing... any pointers to
what is the case?

Thanks!

 Petri


From hawkeye.parker at autodesk.com  Tue Oct 14 21:38:10 2003
From: hawkeye.parker at autodesk.com (Hawkeye Parker)
Date: Tue Oct 14 21:37:34 2003
Subject: [XML-SIG] validating with XML schema (long)
Message-ID: <9BDC80F712DD0C4CB5FBF48D2ED3DD8B44AD4D@msgusawmb02.ads.autodesk.com>

hi all

i need to validate the structure/content of some xml, and i'm parsing etc. with python.  i've been learning a bit about XML Schema and i'd like to confirm some basic assumptions:

-validation with XML Schema (or any other validation language) doesn't "just happen".  i.e., just because you specify an .xsd file in your xml, you still need to explicitly "call" it to validate the xml.  it must be, correct?

assuming i'm right so far:  in terms of validation, it seems that DTD is unwieldy and that XML Schema (.xsd) is a much better choice, except that there's little support for it in general, and specifically in python.  in fact, there doesn't seem to be a whole lot of xml validation support at all . . . .  this makes me think that:

-there are other (more sensible?) ways to validate the xml, like parsing into DOM and then using python to validate according to your desires.  maybe messy but obvious.
-xml is new, validation of xml is newer, validation with XML Schema is newer yet.

in anycase, i've gotten XSV and run it against a few of my own examples.  again, i'm confused:  XSV seems to validate the XML Schema itself (schemaErrors) as much as the XML (instanceErrors).  i guess this is good.  moreover, i was expecting to write something like this:

XSV.validate('foo.xml', foo.xsd')

which would raise an exception if anything went wrong with the validation of the XML (.xml) file according to the XML Schema file (.xsd).  instead, i get an (opaque) xml object that i will have to parse futher, eventually to raise my own custom exceptions.  not meaning to complain at all, this makes me think i should just do everything in python:  then, at least i know exactly what i'm doing.  why am i wrong?

lastly, here's an example of some simple xml and an empty schema:

<?xml version="1.0" encoding="UTF-16" ?>
<PPSiteBuilder xmlns:xsi='http://www.w3.org/2001/XMLSchema-instance' xsi:noNamespaceSchemaLocation='PPSiteBuilderSchema.xsd'>
	<site></site>
	<reallyReallyStupidWrongTag></reallyReallyStupidWrongTag>
</PPSiteBuilder>

<?xml version="1.0"?>
<xsd:schema xmlns:xsd="http://www.w3.org/2001/XMLSchema">
</xsd:schema>

here's the xsv output:

<?xml version='1.0'?>
<xsv xmlns="http://www.w3.org/2000/05/xsv" docElt="{None}PPSiteBuilder"
     instanceAssessed="true" instanceErrors="0" schemaErrors="0"
  schemaLocs="None -> PPSiteBuilderSchema.xsd; None -> PPSiteBuilderSchema.xsd"
     target="file:///C:/sandbox/site_builder/siteBuilder.xml" validation="lax"
     version="XSV 2.5-2 of 2003/07/09 13:08:04">
  <schemaDocAttempt
    URI="file:///C:/sandbox/site_builder/PPSiteBuilderSchema.xsd"
                    outcome="success" source="schemaLoc"/>
  <schemaDocAttempt
    URI="file:///C:/sandbox/site_builder/PPSiteBuilderSchema.xsd"
                    outcome="redundant" source="schemaLoc"/>
</xsv>


XSV does not complain about this example, though none of the elements (<PPSiteBuilder>, <site>, etc.) are specified in the Schema.  i expect i'm missing something basic about xml, validation, and XML Schema, but this is just the sort of *very bad* xml that i want to be able to catch during validation.

any help, thoughts, nudges would be wonderful.

thanks,
hawkeye

From tpassin at comcast.net  Tue Oct 14 23:06:46 2003
From: tpassin at comcast.net (Thomas B. Passin)
Date: Tue Oct 14 23:05:05 2003
Subject: [XML-SIG] validating with XML schema (long)
In-Reply-To: <9BDC80F712DD0C4CB5FBF48D2ED3DD8B44AD4D@msgusawmb02.ads.autodesk.com>
References: <9BDC80F712DD0C4CB5FBF48D2ED3DD8B44AD4D@msgusawmb02.ads.autodesk.com>
Message-ID: <3F8CB9C6.5060708@comcast.net>

Hawkeye Parker wrote:
 > i need to validate the structure/content of some xml, and i'm parsing 
etc. with python.  i've been learning a bit about XML Schema and i'd 
like to confirm some basic assumptions:
 >
 > -validation with XML Schema (or any other validation language) 
doesn't "just happen".  i.e., just because you specify an .xsd file in 
your xml, you still need to explicitly "call" it to validate the xml. 
it must be, correct?
 >

You must make validation happen, but not by "calling" a specified xsd file.

 > assuming i'm right so far:  in terms of validation, it seems that DTD 
is unwieldy and that XML Schema (.xsd) is a much better choice,

Huh???  Most people think that xml schema is an unwieldy beast, not the dtd.

 >except that there's little support for it in general, and specifically 
in python.  in fact, there doesn't seem to be a whole lot of xml 
validation support at all . . . .  this makes me think that:
 >
 > -there are other (more sensible?) ways to validate the xml, like 
parsing into DOM and then using python to validate according to your 
desires.  maybe messy but obvious.

Not very feasible except for quite restricted kinds of validation, though.

 > -xml is new, validation of xml is newer, validation with XML Schema 
is newer yet.
 >
 > in anycase, i've gotten XSV and run it against a few of my own 
examples.  again, i'm confused:  XSV seems to validate the XML Schema 
itself (schemaErrors) as much as the XML (instanceErrors).  i guess this 
is good.  moreover, i was expecting to write something like this:
 >
 > XSV.validate('foo.xml', foo.xsd')
 >
 > which would raise an exception if anything went wrong with the 
validation of the XML (.xml) file according to the XML Schema file 
(.xsd).  instead, i get an (opaque) xml object that i will have to parse 
futher, eventually to raise my own custom exceptions.

xsv comes with an xslt stylesheet to make the results easier to read. 
You could start with that (command line operation) until you understand 
what xsv is telling you.

 >
 > lastly, here's an example of some simple xml and an empty schema:
 >
 > <?xml version="1.0" encoding="UTF-16" ?>
 > <PPSiteBuilder xmlns:xsi='http://www.w3.org/2001/XMLSchema-instance' 
xsi:noNamespaceSchemaLocation='PPSiteBuilderSchema.xsd'>
 > 	<site></site>
 > 	<reallyReallyStupidWrongTag></reallyReallyStupidWrongTag>
 > </PPSiteBuilder>
 >
 > <?xml version="1.0"?>
 > <xsd:schema xmlns:xsd="http://www.w3.org/2001/XMLSchema">
 > </xsd:schema>
 >
 > here's the xsv output:
 >
 > <?xml version='1.0'?>
 > <xsv xmlns="http://www.w3.org/2000/05/xsv" docElt="{None}PPSiteBuilder"
 >      instanceAssessed="true" instanceErrors="0" schemaErrors="0"
 >   schemaLocs="None -> PPSiteBuilderSchema.xsd; None -> 
PPSiteBuilderSchema.xsd"
 >      target="file:///C:/sandbox/site_builder/siteBuilder.xml" 
validation="lax"
 >      version="XSV 2.5-2 of 2003/07/09 13:08:04">
 >   <schemaDocAttempt
 >     URI="file:///C:/sandbox/site_builder/PPSiteBuilderSchema.xsd"
 >                     outcome="success" source="schemaLoc"/>
 >   <schemaDocAttempt
 >     URI="file:///C:/sandbox/site_builder/PPSiteBuilderSchema.xsd"
 >                     outcome="redundant" source="schemaLoc"/>
 > </xsv>
 >
 >
 > XSV does not complain about this example,

But it does tell what it did.  In this case, xsv could not find any 
elements to validate (since the schema is empty), so it went to "lax" 
mode - validation='lax'.  This means it did not check the elements it 
found.  XML Schema validation can be either lax or strict - you have to 
read up on it.  With lax validation, xsv found no errors since all 
schema elements were satisfied or at least not failed (since there were 
none).

 > though none of the elements (<PPSiteBuilder>, <site>, etc.) are 
specified in the Schema.  i expect i'm missing something basic about 
xml, validation, and XML Schema, but this is just the sort of *very bad* 
xml that i want to be able to catch during validation.
 >

Learn how to enforce strict validation, or just use a DTD, or go to 
RELAX NG.  If you use a DTD, you have to use a validating parser and 
tell it to validate - Python can do this.  Search Google, you should 
find enough information.

Cheers,

Tom P



From Alexandre.Fayolle at logilab.fr  Wed Oct 15 02:02:23 2003
From: Alexandre.Fayolle at logilab.fr (Alexandre Fayolle)
Date: Wed Oct 15 02:02:28 2003
Subject: [XML-SIG] pyxml0.8.3/minidom/getElementById still broken???
In-Reply-To: <bmhcsm$hum$1@sea.gmane.org>
References: <bmhcsm$hum$1@sea.gmane.org>
Message-ID: <20031015060223.GK13178@calvin>

On Tue, Oct 14, 2003 at 08:51:33PM +0300, Petri Savolainen wrote:
> Information at http://pyxml.sourceforge.net/topics/compliance.html claims it
> is fixed in this version. The same document seems to say a version of
> minidom that comes with python2.3 (running that) also works.
> 
> Yet, running RH9 and having the right version installed (on python 2.3),
> it fails on me, not returning anything where it clearly should. I've
> doublechecked and doublechecked everything I can think of.

Have you parsed the file with a validating parser ? This is required for
getElementsById to work since the parser needs to parse the DTD in order
to know which attributes are IDs. 

-- 
Alexandre Fayolle
LOGILAB, Paris (France).
http://www.logilab.com   http://www.logilab.fr  http://www.logilab.org
D?veloppement logiciel avanc? - Intelligence Artificielle - Formations

From ht at cogsci.ed.ac.uk  Wed Oct 15 02:20:00 2003
From: ht at cogsci.ed.ac.uk (Henry S. Thompson)
Date: Wed Oct 15 02:21:27 2003
Subject: [XML-SIG] validating with XML schema (long)
In-Reply-To: <3F8CB9C6.5060708@comcast.net> (Thomas B. Passin's message of
	"Tue, 14 Oct 2003 23:06:46 -0400")
References: <9BDC80F712DD0C4CB5FBF48D2ED3DD8B44AD4D@msgusawmb02.ads.autodesk.com>
	<3F8CB9C6.5060708@comcast.net>
Message-ID: <f5bwub758fj.fsf@erasmus.inf.ed.ac.uk>

Only one thing to add to Thomas's sensible reply -- if you want
programmatic access to XSV, forget XSV.commandLine and go straight to
XSV.driver, probably the 'runit' method.

ht
-- 
  Henry S. Thompson, HCRC Language Technology Group, University of Edinburgh
                      Half-time member of W3C Team
     2 Buccleuch Place, Edinburgh EH8 9LW, SCOTLAND -- (44) 131 650-4440
	    Fax: (44) 131 650-4587, e-mail: ht@cogsci.ed.ac.uk
		     URL: http://www.ltg.ed.ac.uk/~ht/
 [mail really from me _always_ has this .sig -- mail without it is forged spam]

From and-xml at doxdesk.com  Wed Oct 15 08:46:05 2003
From: and-xml at doxdesk.com (Andrew Clover)
Date: Wed Oct 15 09:01:56 2003
Subject: [XML-SIG] pyxml0.8.3/minidom/getElementById still broken???
In-Reply-To: <bmhcsm$hum$1@sea.gmane.org>
References: <bmhcsm$hum$1@sea.gmane.org>
Message-ID: <20031015124605.GA27953@doxdesk.com>

Petri Savolainen <petri.savolainen@iki.fi> wrote:

> Information at http://pyxml.sourceforge.net/topics/compliance.html claims it
> is fixed in this version. The same document seems to say a version of
> minidom that comes with python2.3 (running that) also works.

Works for me. I haven't tried all possible testcases, but this is okay:

  from xml.dom import minidom
  content= '<!DOCTYPE x [<!ATTLIST x a ID #IMPLIED>]><x a="b"/>'
  doc= minidom.parseString(content)
  doc.getElementById('b')

- resulting in element <x>.

If the IDness of the attribute concerned is declared in the external subset,
minidom won't use that as it's a non-validating, non-external-entity-reading
DOM implementation.

-- 
Andrew Clover
mailto:and@doxdesk.com
http://www.doxdesk.com/

From fdrake at acm.org  Wed Oct 15 09:57:03 2003
From: fdrake at acm.org (Fred L. Drake, Jr.)
Date: Wed Oct 15 09:57:13 2003
Subject: [XML-SIG] pyxml0.8.3/minidom/getElementById still broken???
In-Reply-To: <20031015124605.GA27953@doxdesk.com>
References: <bmhcsm$hum$1@sea.gmane.org> <20031015124605.GA27953@doxdesk.com>
Message-ID: <16269.21039.724817.186733@grendel.zope.com>


Andrew Clover writes:
 > If the IDness of the attribute concerned is declared in the external subset,
 > minidom won't use that as it's a non-validating, non-external-entity-reading
 > DOM implementation.

That, theoretically, can be controlled using the DOM 3 Load & Save
interface, though do so isn't as well tested as it should be.  That
will change as the spec for that approaches Recommendation status.


  -Fred

-- 
Fred L. Drake, Jr.  <fdrake at acm.org>
PythonLabs at Zope Corporation

From petri.savolainen at iki.fi  Wed Oct 15 10:30:24 2003
From: petri.savolainen at iki.fi (Petri Savolainen)
Date: Wed Oct 15 10:27:02 2003
Subject: [XML-SIG] Re: pyxml0.8.3/minidom/getElementById still broken???
References: <bmhcsm$hum$1@sea.gmane.org> <20031015124605.GA27953@doxdesk.com>
	<16269.21039.724817.186733@grendel.zope.com>
Message-ID: <bmjlff$dhf$1@sea.gmane.org>

Alexandre, Fred, Andrew, thank you!

Indeed, I had no DTD, no validation. I assumed that by default, attributes
named "id" are treated as id attributes, for the purposes of
getElementById.

Using setIdAttribute('id') from DOM3 Load & Save (?) works great, too.

Thanks again!

 Petri

Fred L. Drake, Jr. wrote:

> 
> Andrew Clover writes:
>  > If the IDness of the attribute concerned is declared in the external
>  > subset, minidom won't use that as it's a non-validating,
>  > non-external-entity-reading DOM implementation.
> 
> That, theoretically, can be controlled using the DOM 3 Load & Save
> interface, though do so isn't as well tested as it should be.  That
> will change as the spec for that approaches Recommendation status.
> 
> 
>   -Fred
> 



From hawkeye.parker at autodesk.com  Wed Oct 15 13:29:28 2003
From: hawkeye.parker at autodesk.com (Hawkeye Parker)
Date: Wed Oct 15 13:29:05 2003
Subject: [XML-SIG] validating with XML schema (long)
Message-ID: <9BDC80F712DD0C4CB5FBF48D2ED3DD8B44AD50@msgusawmb02.ads.autodesk.com>

>> Is there a way to specify to
>> XSV, "hey, validate it in strict mode.

>There isn't, there should be.

>ht

found the above from 2000.  is this still the case?  (it would seem so after having a look at runit())

i've discovered:

processContents="strict"

am i on the right track?

sorry for all the unlearned questions:  i had no idea the curve would be so steep (for me).

hawkeye

> -----Original Message-----
> From: Henry S. Thompson [mailto:ht@cogsci.ed.ac.uk]
> Sent: Tuesday, October 14, 2003 11:20 PM
> To: Thomas B. Passin
> Cc: Hawkeye Parker; xml-sig@python.org
> Subject: Re: [XML-SIG] validating with XML schema (long)
> 
> 
> Only one thing to add to Thomas's sensible reply -- if you want
> programmatic access to XSV, forget XSV.commandLine and go straight to
> XSV.driver, probably the 'runit' method.
> 
> ht
> -- 
>   Henry S. Thompson, HCRC Language Technology Group, 
> University of Edinburgh
>                       Half-time member of W3C Team
>      2 Buccleuch Place, Edinburgh EH8 9LW, SCOTLAND -- (44) 
> 131 650-4440
> 	    Fax: (44) 131 650-4587, e-mail: ht@cogsci.ed.ac.uk
> 		     URL: http://www.ltg.ed.ac.uk/~ht/
>  [mail really from me _always_ has this .sig -- mail without 
> it is forged spam]
> 

From fdrake at acm.org  Wed Oct 15 14:20:49 2003
From: fdrake at acm.org (Fred L. Drake, Jr.)
Date: Wed Oct 15 14:36:46 2003
Subject: [XML-SIG] Snapshot of upcoming Expat 1.95.7
Message-ID: <16269.36865.322742.443709@grendel.zope.com>


The following is the text of a message I just sent to the
expat-discuss mailing list.  There are a few people here who may be
interested in this.  ;-)


I've made a second snapshot of the current state of Expat in CVS; it's
available as

    http://www.libexpat.org/expat-2003-10-15.tar.gz

The implementation hasn't really changed... but the declarations of
every entry point have been re-written.  The purpose of making a
second snapshot available is to catch any unintentional changes to the
API by the restructuring of the macros in the source.

The changes don't really affect the internals of Expat, and should not
affect the API used by any working application, but are pervasive.
The changes were needed to address the concerns described in this
patch report:

    http://sourceforge.net/tracker/index.php?func=detail&aid=820946&group_id=10127&atid=310127

If you have time to test this snapshot, please report your results to
the list.  If all goes well, I'll release Expat 1.95.7 this weekend.


  -Fred

-- 
Fred L. Drake, Jr.  <fdrake at acm.org>
PythonLabs at Zope Corporation

From brian at sweetapp.com  Thu Oct 16 00:25:18 2003
From: brian at sweetapp.com (Brian Quinlan)
Date: Thu Oct 16 00:22:43 2003
Subject: [XML-SIG] ANN: Pyana 0.8.1 Released
Message-ID: <00e801c3939d$824def40$21795418@dell1700>

ANN: Pyana 0.8.1 Released

You can find it here:
http://sourceforge.net/project/showfiles.php?group_id=28142

Changes:

- Updated for Xalan 1.6/Xerces 2.3
- Fixed a bug where some Unicode strings would be misinterpreted as
numbers

What is Pyana?

Pyana is a Python interface to the Xalan C XSLT processor. Example:

import Pyana

inputExampleXSL = r'''
<xsl:stylesheet xmlns:xsl=http://www.w3.org/1999/XSL/Transform
                version="1.0">
    <xsl:output method="text"/>
    <xsl:template match="message">
        <xsl:value-of select="child::text()"/>
    </xsl:template>
</xsl:stylesheet>
'''

inputExampleXML = r'''
<message>Hello World!</message>
'''

print Pyana.transform2String(
    source=inputExampleXML, 
    style=inputExampleXSL) # prints 'Hello World'


Some more complex examples are provided here:
http://pyana.sourceforge.net/examples/

Cheers,
Brian 



From kamel.hamard at ericsson.com  Thu Oct 16 11:36:58 2003
From: kamel.hamard at ericsson.com (Kamel Hamard (QC/EMC))
Date: Thu Oct 16 11:41:38 2003
Subject: [XML-SIG] Using getElementById
Message-ID: <2DBF697D5B36014ABA46E66A96107DA072064F@lmc37.lmc.ericsson.se>

Hi Guys,

I'm using 4suite API and I know that I can't access to my element using this document's method.

To be able to do that, I use minidom. I have a xml file and a dtd file where I'm declaring which attivutes are considered as IDs. 

Here is the code to create the document:

import xml.dom.minidom
	file = "xml file path name"
	doc = xml.dom.minidom.parseString(open(file).read()) 
	print	doc.getElementById('myid')



I'm getting None as result. Any body has an Idea why?

Here is the sction of the DTD for the declaration:

<!ATTLIST ndp
	id ID #REQUIRED
	version CDATA #REQUIRED
>

Thanks

Kamel

From noreply at sourceforge.net  Thu Oct 16 17:28:35 2003
From: noreply at sourceforge.net (SourceForge.net)
Date: Thu Oct 16 17:28:48 2003
Subject: [XML-SIG] [ pyxml-Bugs-825115 ] c14n: 'xmlns=""' attrib ordering
	problem on subelements
Message-ID: <E1AAFff-0008Ny-00@sc8-sf-web3.sourceforge.net>

Bugs item #825115, was opened at 2003-10-16 14:28
Message generated for change (Tracker Item Submitted) made by Item Submitter
You can respond by visiting: 
https://sourceforge.net/tracker/?func=detail&atid=106473&aid=825115&group_id=6473

Category: DOM
Group: None
Status: Open
Resolution: None
Priority: 5
Submitted By: Keith Beattie (ksbeattie)
Assigned to: Nobody/Anonymous (nobody)
Summary: c14n: 'xmlns=""' attrib ordering problem on subelements

Initial Comment:
When c14n'ing a sub element of a document which set the
default xmlns, that xmlns attribute is not ordered
first.  For exmaple the program:

---
from xml.dom import minidom
from xml.dom.ext import c14n

str = """<a:A xmlns:a="a" xmlns="b">
  <B/>
</a:A>"""
dom = minidom.parseString(str)
B_el = dom.getElementsByTagNameNS("b", "B")[0]
print c14n.Canonicalize(B_el)
---

prints:
<B xmlns:a="a" xmlns="b"></B>

When it should place the 'xmlns="b"' first:
<B xmlns="b" xmlns:a="a"></B>

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

You can respond by visiting: 
https://sourceforge.net/tracker/?func=detail&atid=106473&aid=825115&group_id=6473

From tpassin at comcast.net  Thu Oct 16 19:19:26 2003
From: tpassin at comcast.net (Thomas B. Passin)
Date: Thu Oct 16 19:17:20 2003
Subject: [XML-SIG] Using getElementById
In-Reply-To: <2DBF697D5B36014ABA46E66A96107DA072064F@lmc37.lmc.ericsson.se>
References: <2DBF697D5B36014ABA46E66A96107DA072064F@lmc37.lmc.ericsson.se>
Message-ID: <3F8F277E.1020901@comcast.net>


Kamel Hamard (QC/EMC) wrote:
> 
> I'm using 4suite API and I know that I can't access to my element using this document's method.
> 
> To be able to do that, I use minidom. I have a xml file and a dtd file where I'm declaring which attivutes are considered as IDs. 
> 
> Here is the code to create the document:
> 
> import xml.dom.minidom
> 	file = "xml file path name"
> 	doc = xml.dom.minidom.parseString(open(file).read()) 
> 	print	doc.getElementById('myid')
> 
> 
> 
> I'm getting None as result. Any body has an Idea why?
> 
> Here is the sction of the DTD for the declaration:
> 
> <!ATTLIST ndp
> 	id ID #REQUIRED
> 	version CDATA #REQUIRED
> 
> 

Well, you did not show your xml source. The dtd only declares that 
attributes names "id" are of type ID, and you asked for.  If your source 
has no "id" attribute with a value 'myid', there will be nothing to return.

Cheers,

Tom P



From KSBeattie at lbl.gov  Thu Oct 16 22:05:27 2003
From: KSBeattie at lbl.gov (Keith Beattie)
Date: Thu Oct 16 22:05:31 2003
Subject: [XML-SIG] c14n and subset
Message-ID: <3F8F4E67.5010107@lbl.gov>

So, after staring at c14n.py for far too long and filing a bug against 
it (825115) (see thread titles "c14n attribute ordering problem?"), I 
gave the subset arg of Canonicalize() a try.

This doesn't exibit #825115 but does have another problem, it doesn't 
include the non-xmlns attributes.  For example:

$ cat c14n_simple.py
from xml.dom import minidom
from xml.dom.ext import c14n

str = """<a:A xmlns:a="urn:a" xmlns="urn:b">
   <B a:cat="gin" dog="stoli"/>
</a:A>"""
dom = minidom.parseString(str)
B_el = dom.getElementsByTagNameNS("urn:b", "B")
print c14n.Canonicalize(dom, subset=B_el)

$ python c14n_simple.py
<B xmlns="urn:b" xmlns:a="urn:a"></B>

I was expecting:
<B xmlns="urn:b" xmlns:a="urn:a" dog="stoli" a:cat="gin"></B>

Any ideas on what might be wrong?

ksb


From JRBoverhof at lbl.gov  Thu Oct 16 23:06:01 2003
From: JRBoverhof at lbl.gov (Joshua Boverhof)
Date: Thu Oct 16 23:05:14 2003
Subject: [XML-SIG] c14n and subset
References: <3F8F4E67.5010107@lbl.gov>
Message-ID: <3F8F5C99.50909@lbl.gov>

Is this what you're trying to do?
-josh


$ python c14n_simple.py
<B dog="stoli" xmlns:a="urn:a" xmlns="urn:b" a:cat="gin"></B>
[boverhof@dahmer Canonicalize]$ !cat
cat c14n_simple.py
from xml.dom import minidom
from xml.dom.ext import c14n

str = """<a:A xmlns:a="urn:a" xmlns="urn:b">
  <B a:cat="gin" dog="stoli"/>
</a:A>"""
dom = minidom.parseString(str)
B_el = dom.getElementsByTagNameNS("urn:b", "B")

#print c14n.Canonicalize(dom, subset=B_el)
print c14n.Canonicalize(B_el[0])


$ python c14n_simple.py
<B dog="stoli" xmlns:a="urn:a" xmlns="urn:b" a:cat="gin"></B>




Keith Beattie wrote:

> So, after staring at c14n.py for far too long and filing a bug against 
> it (825115) (see thread titles "c14n attribute ordering problem?"), I 
> gave the subset arg of Canonicalize() a try.
>
> This doesn't exibit #825115 but does have another problem, it doesn't 
> include the non-xmlns attributes.  For example:
>
> $ cat c14n_simple.py
> from xml.dom import minidom
> from xml.dom.ext import c14n
>
> str = """<a:A xmlns:a="urn:a" xmlns="urn:b">
>   <B a:cat="gin" dog="stoli"/>
> </a:A>"""
> dom = minidom.parseString(str)
> B_el = dom.getElementsByTagNameNS("urn:b", "B")
> print c14n.Canonicalize(dom, subset=B_el)
>
> $ python c14n_simple.py
> <B xmlns="urn:b" xmlns:a="urn:a"></B>
>
> I was expecting:
> <B xmlns="urn:b" xmlns:a="urn:a" dog="stoli" a:cat="gin"></B>
>
> Any ideas on what might be wrong?
>
> ksb
>
>
> _______________________________________________
> XML-SIG maillist  -  XML-SIG@python.org
> http://mail.python.org/mailman/listinfo/xml-sig





From KSBeattie at lbl.gov  Fri Oct 17 03:02:21 2003
From: KSBeattie at lbl.gov (Keith Beattie)
Date: Fri Oct 17 03:06:38 2003
Subject: [XML-SIG] c14n and subset
In-Reply-To: <3F8F5C99.50909@lbl.gov>
References: <3F8F4E67.5010107@lbl.gov> <3F8F5C99.50909@lbl.gov>
Message-ID: <3F8F93FD.9030308@lbl.gov>

Joshua Boverhof wrote:
> Is this what you're trying to do?
> 
> #print c14n.Canonicalize(dom, subset=B_el)
> print c14n.Canonicalize(B_el[0])
> 
> $ python c14n_simple.py
> <B dog="stoli" xmlns:a="urn:a" xmlns="urn:b" a:cat="gin"></B>

Well, no, because that isn't canonical form.  :/

Canonical form for this would be:
<B xmlns="urn:b" xmlns:a="urn:a" dog="stoli" a:cat="gin"></B>

c14n ordering of attributes is:
1st) the default namespace declaration ('xnlms="<whatever>"') first
2nd) namespace declarations, sorted by prefix (the part after the ':')
3rd) unqualified attributes, sorted by name
4th) qualified attributes, sorted by namespace URI

I initially tried what you suggest which led me to filing bug #825115 
(which at the time I thought was only a violation of my rule #1, but it 
appears to be a bit more).  After using the subset arg of 
Canonicalize(), it follows rule #1, but appears to drop attributes under 
rules 3 & 4.

Looking at the code in c14n.py it appears that all the proper logic is 
there (and the use of subset getting rule #1 right is encouraging), but 
honestly my head is spinning with all it's recursion and terse comments.

I'm hoping that perhaps c14n.py can do what I need (an exc c14n of an 
xpath subset of a doc) and that my initial test of using a sub-element 
as the lone arg to Canonicalize (my filed bug) is a known limitation.

ksb



From rsalz at datapower.com  Fri Oct 17 07:40:25 2003
From: rsalz at datapower.com (Rich Salz)
Date: Fri Oct 17 07:40:29 2003
Subject: [XML-SIG] c14n and subset
In-Reply-To: <3F8F93FD.9030308@lbl.gov>
Message-ID: <Pine.LNX.4.44L0.0310170739550.16539-100000@smtp.datapower.com>

> Looking at the code in c14n.py it appears that all the proper logic is
> there (and the use of subset getting rule #1 right is encouraging), but
> honestly my head is spinning with all it's recursion and terse comments.

yes.

> I'm hoping that perhaps c14n.py can do what I need (an exc c14n of an
> xpath subset of a doc) and that my initial test of using a sub-element
> as the lone arg to Canonicalize (my filed bug) is a known limitation.

no known limitations in the code.  just bugs.

	/r$

--
Rich Salz                  Chief Security Architect
DataPower Technology       http://www.datapower.com
XS40 XML Security Gateway  http://www.datapower.com/products/xs40.html
XML Security Overview      http://www.datapower.com/xmldev/xmlsecurity.html


From Alexandre.Fayolle at logilab.fr  Fri Oct 17 09:02:42 2003
From: Alexandre.Fayolle at logilab.fr (Alexandre Fayolle)
Date: Fri Oct 17 09:02:53 2003
Subject: [XML-SIG] expat and external DTDs
Message-ID: <20031017130242.GG27316@calvin>

Hello,

I think this has been discussed here not too long ago, but I could not
find it in the archives. 

I'm using expat through the SAX interface, and it chokes on relative
links to the DTD in the DOCTYPE of the documents I parse. How can I tell
expat not to attempt to read the DTD ?

-- 
Alexandre Fayolle
LOGILAB, Paris (France).
http://www.logilab.com   http://www.logilab.fr  http://www.logilab.org
D?veloppement logiciel avanc? - Intelligence Artificielle - Formations

From JRBoverhof at lbl.gov  Fri Oct 17 12:42:12 2003
From: JRBoverhof at lbl.gov (Joshua Boverhof)
Date: Fri Oct 17 12:42:10 2003
Subject: [XML-SIG] c14n and subset
References: <3F8F4E67.5010107@lbl.gov> <3F8F5C99.50909@lbl.gov>
	<3F8F93FD.9030308@lbl.gov>
Message-ID: <3F901BE4.3090300@lbl.gov>

I made a small change to the _implementation._do_element method
The initial_other_attrs parameter was just being added to other_attrs, so
'xmlns' attributes passed in this way are not being sorted correctly.  I
made a new little list 'sort_these_attrs', and I dump everything in it
and then it passes this FIRST test.  Hope this helps.
-josh


$ python c14n_simple.py
CORRECT:  <B xmlns="urn:b" xmlns:a="urn:a" dog="stoli" a:cat="gin"></B>
CANONIC:  <B xmlns="urn:b" xmlns:a="urn:a" dog="stoli" a:cat="gin"></B>
$ more c14n_simple.py
from xml.dom import minidom
from xml.dom.ext import c14n

str = """
<a:A xmlns:a="urn:a" xmlns="urn:b">
  <B a:cat="gin" dog="stoli"/>
</a:A>"""

dom = minidom.parseString(str)
B_el = dom.getElementsByTagNameNS("urn:b", "B")
#print c14n.Canonicalize(dom, subset=B_el)

print 'CORRECT:  <B xmlns="urn:b" xmlns:a="urn:a" dog="stoli" 
a:cat="gin"></B>'
print "CANONIC: ", c14n.Canonicalize(B_el[0])



Keith Beattie wrote:

> Joshua Boverhof wrote:
>
>> Is this what you're trying to do?
>>
>> #print c14n.Canonicalize(dom, subset=B_el)
>> print c14n.Canonicalize(B_el[0])
>>
>> $ python c14n_simple.py
>> <B dog="stoli" xmlns:a="urn:a" xmlns="urn:b" a:cat="gin"></B>
>
>
> Well, no, because that isn't canonical form.  :/
>
> Canonical form for this would be:
> <B xmlns="urn:b" xmlns:a="urn:a" dog="stoli" a:cat="gin"></B>
>
> c14n ordering of attributes is:
> 1st) the default namespace declaration ('xnlms="<whatever>"') first
> 2nd) namespace declarations, sorted by prefix (the part after the ':')
> 3rd) unqualified attributes, sorted by name
> 4th) qualified attributes, sorted by namespace URI
>
> I initially tried what you suggest which led me to filing bug #825115 
> (which at the time I thought was only a violation of my rule #1, but 
> it appears to be a bit more).  After using the subset arg of 
> Canonicalize(), it follows rule #1, but appears to drop attributes 
> under rules 3 & 4.
>
> Looking at the code in c14n.py it appears that all the proper logic is 
> there (and the use of subset getting rule #1 right is encouraging), 
> but honestly my head is spinning with all it's recursion and terse 
> comments.
>
> I'm hoping that perhaps c14n.py can do what I need (an exc c14n of an 
> xpath subset of a doc) and that my initial test of using a sub-element 
> as the lone arg to Canonicalize (my filed bug) is a known limitation.
>
> ksb
>
>


-------------- next part --------------
#! /usr/bin/env python
'''XML Canonicalization

This module generates canonical XML of a document or element.
    http://www.w3.org/TR/2001/REC-xml-c14n-20010315
and includes a prototype of exclusive canonicalization
    http://www.w3.org/Signature/Drafts/xml-exc-c14n

Requires PyXML 0.7.0 or later.

Known issues if using Ft.Lib.pDomlette:
    1. Unicode
    2. does not white space normalize attributes of type NMTOKEN and ID?
    3. seems to be include "\n" after importing external entities?

Note, this version processes a DOM tree, and consequently it processes
namespace nodes as attributes, not from a node's namespace axis. This
permits simple document and element canonicalization without
XPath. When XPath is used, the XPath result node list is passed and used to
determine if the node is in the XPath result list, but little else.

Authors:
    "Joseph M. Reagle Jr." <reagle@w3.org>
    "Rich Salz" <rsalz@zolera.com>

$Date: 2003/01/25 11:41:21 $ by $Author: loewis $
'''

_copyright = '''Copyright 2001, Zolera Systems Inc.  All Rights Reserved.
Copyright 2001, MIT. All Rights Reserved.

Distributed under the terms of:
  Python 2.0 License or later.
  http://www.python.org/2.0.1/license.html
or
  W3C Software License
  http://www.w3.org/Consortium/Legal/copyright-software-19980720
'''

import string
from xml.dom import Node
try:
    from xml.ns import XMLNS
except:
    class XMLNS:
        BASE = "http://www.w3.org/2000/xmlns/"
        XML = "http://www.w3.org/XML/1998/namespace"
try:
    import cStringIO
    StringIO = cStringIO
except ImportError:
    import StringIO

_attrs = lambda E: (E.attributes and E.attributes.values()) or []
_children = lambda E: E.childNodes or []
_IN_XML_NS = lambda n: n.name.startswith("xmlns")
_inclusive = lambda n: n.unsuppressedPrefixes == None


# Does a document/PI has lesser/greater document order than the
# first element?
_LesserElement, _Element, _GreaterElement = range(3)

def _sorter(n1,n2):
    '''_sorter(n1,n2) -> int
    Sorting predicate for non-NS attributes.'''

    i = cmp(n1.namespaceURI, n2.namespaceURI)
    if i: return i
    return cmp(n1.localName, n2.localName)


def _sorter_ns(n1,n2):
    '''_sorter_ns((n,v),(n,v)) -> int
    "(an empty namespace URI is lexicographically least)."'''

    if n1[0] == 'xmlns': return -1
    if n2[0] == 'xmlns': return 1
    return cmp(n1[0], n2[0])

def _utilized(n, node, other_attrs, unsuppressedPrefixes):
    '''_utilized(n, node, other_attrs, unsuppressedPrefixes) -> boolean
    Return true if that nodespace is utilized within the node'''

    if n.startswith('xmlns:'):
        n = n[6:]
    elif n.startswith('xmlns'):
        n = n[5:]
    if (n=="" and node.prefix in ["#default", None]) or \
        n == node.prefix or n in unsuppressedPrefixes: 
            return 1
    for attr in other_attrs:
        if n == attr.prefix: return 1
    return 0

#_in_subset = lambda subset, node: not subset or node in subset
_in_subset = lambda subset, node: subset is None or node in subset # rich's tweak

class _implementation:
    '''Implementation class for C14N. This accompanies a node during it's
    processing and includes the parameters and processing state.'''

    # Handler for each node type; populated during module instantiation.
    handlers = {}

    def __init__(self, node, write, **kw):
        '''Create and run the implementation.'''
        self.write = write
        self.subset = kw.get('subset')
        self.comments = kw.get('comments', 0)
        self.unsuppressedPrefixes = kw.get('unsuppressedPrefixes')
        nsdict = kw.get('nsdict', { 'xml': XMLNS.XML, 'xmlns': XMLNS.BASE })
        
        # Processing state.
        self.state = (nsdict, {'xml':''}, {}) #0422
        
        if node.nodeType == Node.DOCUMENT_NODE:
            self._do_document(node)
        elif node.nodeType == Node.ELEMENT_NODE:
            self.documentOrder = _Element        # At document element
            if not _inclusive(self):
                self._do_element(node)
            else:
                inherited = self._inherit_context(node)
                self._do_element(node, inherited)
        elif node.nodeType == Node.DOCUMENT_TYPE_NODE:
            pass
        else:
            raise TypeError, str(node)


    def _inherit_context(self, node):
        '''_inherit_context(self, node) -> list
        Scan ancestors of attribute and namespace context.  Used only
        for single element node canonicalization, not for subset
        canonicalization.'''

        # Collect the initial list of xml:foo attributes.
        xmlattrs = filter(_IN_XML_NS, _attrs(node))

        # Walk up and get all xml:XXX attributes we inherit.
        inherited, parent = [], node.parentNode
        while parent and parent.nodeType == Node.ELEMENT_NODE:
            for a in filter(_IN_XML_NS, _attrs(parent)):
                n = a.localName
                if n not in xmlattrs:
                    xmlattrs.append(n)
                    inherited.append(a)
            parent = parent.parentNode
        return inherited


    def _do_document(self, node):
        '''_do_document(self, node) -> None
        Process a document node. documentOrder holds whether the document
        element has been encountered such that PIs/comments can be written
        as specified.'''

        self.documentOrder = _LesserElement
        for child in node.childNodes:
            if child.nodeType == Node.ELEMENT_NODE:
                self.documentOrder = _Element        # At document element
                self._do_element(child)
                self.documentOrder = _GreaterElement # After document element
            elif child.nodeType == Node.PROCESSING_INSTRUCTION_NODE:
                self._do_pi(child)
            elif child.nodeType == Node.COMMENT_NODE:
                self._do_comment(child)
            elif child.nodeType == Node.DOCUMENT_TYPE_NODE:
                pass
            else:
                raise TypeError, str(child)
    handlers[Node.DOCUMENT_NODE] = _do_document


    def _do_text(self, node):
        '''_do_text(self, node) -> None
        Process a text or CDATA node.  Render various special characters
        as their C14N entity representations.'''
        if not _in_subset(self.subset, node): return
        s = string.replace(node.data, "&", "&amp;")
        s = string.replace(s, "<", "&lt;")
        s = string.replace(s, ">", "&gt;")
        s = string.replace(s, "\015", "&#xD;")
        if s: self.write(s)
    handlers[Node.TEXT_NODE] = _do_text
    handlers[Node.CDATA_SECTION_NODE] = _do_text


    def _do_pi(self, node):
        '''_do_pi(self, node) -> None
        Process a PI node. Render a leading or trailing #xA if the
        document order of the PI is greater or lesser (respectively)
        than the document element.
        '''
        if not _in_subset(self.subset, node): return
        W = self.write
        if self.documentOrder == _GreaterElement: W('\n')
        W('<?')
        W(node.nodeName)
        s = node.data
        if s:
            W(' ')
            W(s)
        W('?>')
        if self.documentOrder == _LesserElement: W('\n')
    handlers[Node.PROCESSING_INSTRUCTION_NODE] = _do_pi


    def _do_comment(self, node):
        '''_do_comment(self, node) -> None
        Process a comment node. Render a leading or trailing #xA if the
        document order of the comment is greater or lesser (respectively)
        than the document element.
        '''
        if not _in_subset(self.subset, node): return
        if self.comments:
            W = self.write
            if self.documentOrder == _GreaterElement: W('\n')
            W('<!--')
            W(node.data)
            W('-->')
            if self.documentOrder == _LesserElement: W('\n')
    handlers[Node.COMMENT_NODE] = _do_comment


    def _do_attr(self, n, value):
        ''''_do_attr(self, node) -> None
        Process an attribute.'''

        W = self.write
        W(' ')
        W(n)
        W('="')
        s = string.replace(value, "&", "&amp;")
        s = string.replace(s, "<", "&lt;")
        s = string.replace(s, '"', '&quot;')
        s = string.replace(s, '\011', '&#x9')
        s = string.replace(s, '\012', '&#xA')
        s = string.replace(s, '\015', '&#xD')
        W(s)
        W('"')


    def _do_element(self, node, initial_other_attrs = []):
        '''_do_element(self, node, initial_other_attrs = []) -> None
        Process an element (and its children).'''

        # Get state (from the stack) make local copies.
        #   ns_parent -- NS declarations in parent
        #   ns_rendered -- NS nodes rendered by ancestors
        #        ns_local -- NS declarations relevant to this element
        #   xml_attrs -- Attributes in XML namespace from parent
        #       xml_attrs_local -- Local attributes in XML namespace.
        ns_parent, ns_rendered, xml_attrs = \
                self.state[0], self.state[1].copy(), self.state[2].copy() #0422
        ns_local = ns_parent.copy()
        xml_attrs_local = {}

        # Divide attributes into NS, XML, and others.
        #other_attrs = initial_other_attrs[:]
        other_attrs = []
        sort_these_attrs = initial_other_attrs[:]

        in_subset = _in_subset(self.subset, node)
        #for a in _attrs(node):
        sort_these_attrs += _attrs(node)
        for a in sort_these_attrs:
            if a.namespaceURI == XMLNS.BASE:
                n = a.nodeName
                if n == "xmlns:": n = "xmlns"        # DOM bug workaround
                ns_local[n] = a.nodeValue
            elif a.namespaceURI == XMLNS.XML:
                if _inclusive(self) or (in_subset and  _in_subset(self.subset, a)): #020925 Test to see if attribute node in subset
                    xml_attrs_local[a.nodeName] = a #0426
            else:
                if  _in_subset(self.subset, a):     #020925 Test to see if attribute node in subset
                    other_attrs.append(a)
            #add local xml:foo attributes to ancestor's xml:foo attributes
            xml_attrs.update(xml_attrs_local)

        # Render the node
        W, name = self.write, None
        if in_subset: 
            name = node.nodeName
            W('<')
            W(name)

            # Create list of NS attributes to render.
            ns_to_render = []
            for n,v in ns_local.items():

                # If default namespace is XMLNS.BASE or empty,
                # and if an ancestor was the same
                if n == "xmlns" and v in [ XMLNS.BASE, '' ] \
                and ns_rendered.get('xmlns') in [ XMLNS.BASE, '', None ]:
                    continue

                # "omit namespace node with local name xml, which defines
                # the xml prefix, if its string value is
                # http://www.w3.org/XML/1998/namespace."
                if n in ["xmlns:xml", "xml"] \
                and v in [ 'http://www.w3.org/XML/1998/namespace' ]:
                    continue


                # If not previously rendered
                # and it's inclusive  or utilized
                if (n,v) not in ns_rendered.items() \
                  and (_inclusive(self) or \
                  _utilized(n, node, other_attrs, self.unsuppressedPrefixes)):
                    ns_to_render.append((n, v))

            # Sort and render the ns, marking what was rendered.
            ns_to_render.sort(_sorter_ns)
            for n,v in ns_to_render:
                self._do_attr(n, v)
                ns_rendered[n]=v    #0417

            # If exclusive or the parent is in the subset, add the local xml attributes
            # Else, add all local and ancestor xml attributes
            # Sort and render the attributes.
            if not _inclusive(self) or _in_subset(self.subset,node.parentNode):  #0426
                other_attrs.extend(xml_attrs_local.values())
            else:
                other_attrs.extend(xml_attrs.values())
            other_attrs.sort(_sorter)
            for a in other_attrs:
                self._do_attr(a.nodeName, a.value)
            W('>')

        # Push state, recurse, pop state.
        state, self.state = self.state, (ns_local, ns_rendered, xml_attrs)
        for c in _children(node):
            _implementation.handlers[c.nodeType](self, c)
        self.state = state

        if name: W('</%s>' % name)
    handlers[Node.ELEMENT_NODE] = _do_element


def Canonicalize(node, output=None, **kw):
    '''Canonicalize(node, output=None, **kw) -> UTF-8

    Canonicalize a DOM document/element node and all descendents.
    Return the text; if output is specified then output.write will
    be called to output the text and None will be returned
    Keyword parameters:
        nsdict: a dictionary of prefix:uri namespace entries
                assumed to exist in the surrounding context
        comments: keep comments if non-zero (default is 0)
        subset: Canonical XML subsetting resulting from XPath
                (default is [])
        unsuppressedPrefixes: do exclusive C14N, and this specifies the
                prefixes that should be inherited.
    '''
    if output:
        apply(_implementation, (node, output.write), kw)
    else:
        s = StringIO.StringIO()
        apply(_implementation, (node, s.write), kw)
        return s.getvalue()
From martin at v.loewis.de  Fri Oct 17 18:19:18 2003
From: martin at v.loewis.de (Martin v. =?iso-8859-15?q?L=F6wis?=)
Date: Fri Oct 17 18:19:33 2003
Subject: [XML-SIG] expat and external DTDs
In-Reply-To: <20031017130242.GG27316@calvin>
References: <20031017130242.GG27316@calvin>
Message-ID: <m3ad7z1p95.fsf@mira.informatik.hu-berlin.de>

Alexandre Fayolle <Alexandre.Fayolle@logilab.fr> writes:

> I'm using expat through the SAX interface, and it chokes on relative
> links to the DTD in the DOCTYPE of the documents I parse. How can I tell
> expat not to attempt to read the DTD ?

There are two ways: one is to declare the document standalone (through
the XML header), and the other one is to SetParamEntityParsing to
XML_PARAM_ENTITY_PARSING_NEVER (or some such).

Regards,
Martin


From ashearer at shearersoftware.com  Sat Oct 18 15:58:31 2003
From: ashearer at shearersoftware.com (Andrew Shearer)
Date: Sat Oct 18 15:58:42 2003
Subject: [XML-SIG] expat and external DTDs
In-Reply-To: <E1AAX3j-0001Yy-S3@mail.python.org>
Message-ID: <72AAE804-01A5-11D8-A5EB-000393B3AC06@shearersoftware.com>

I had a similar problem with the first cut of a parser for Apple's 
PList format. It worked fine when I was connected to the Internet, but 
failed when I wasn't. The documents specified an Internet-based DTD 
when they really could stand alone, so I used code similar to the 
following:

parser = xml.sax.make_parser()
parser.setFeature(xml.sax.feature_external_ges, 0)
parser.setFeature(xml.sax.feature_external_pes, 0)

The complete code is at 
<http://www.shearersoftware.com/software/developers/plist/>.

On Friday, October 17, 2003, at 12:02  PM, xml-sig-request@python.org 
wrote:

> From: Alexandre Fayolle <Alexandre.Fayolle@logilab.fr>

> I'm using expat through the SAX interface, and it chokes on relative
> links to the DTD in the DOCTYPE of the documents I parse. How can I 
> tell
> expat not to attempt to read the DTD ?
--
Andrew Shearer
http://www.shearersoftware.com/


From fdrake at acm.org  Tue Oct 21 00:26:45 2003
From: fdrake at acm.org (Fred L. Drake, Jr.)
Date: Tue Oct 21 00:27:00 2003
Subject: [XML-SIG] Expat 1.95.7 released
Message-ID: <16276.46469.146115.443017@grendel.zope.com>


Expat 1.95.7 is now available for download.  This release fixes a
variety of problems, including the truly nasty "enum XML_Status"
problem, which affected many compilers (just not those used by the
maintainers at the time, unfortunately), and many build issues that
affect one platform or another.

Existing working applications which use Expat should not need any
changes to work with the new version, though application maintainers
should review the changes carefully to determine the potential impact
of the specific changes that have been made.

The following changes have been made since the previous release:

- Fixed enum XML_Status issue (reported on SourceForge many
  times), so compilers that are properly picky will be happy.
- Introduced an XMLCALL macro to control the calling
  convention used by the Expat API; this macro should be used
  to annotate prototypes and definitions of callback
  implementations in code compiled with a calling convention
  other than the default convention for the host platform.
- Improved ability to build without the configure-generated
  expat_config.h header.  This is useful for applications
  which embed Expat rather than linking in the library.
- Fixed a variety of bugs: see SF issues 458907, 609603,
  676844, 679754, 692878, 692964, 695401, 699323, 699487,
  820946.
- Improved hash table lookups.
- Added more regression tests and improved documentation.

Additional information about Expat can be found at the Expat website:

    http://www.libexpat.org/

This release can be downloaded from SourceForge:

    http://sourceforge.net/project/showfiles.php?group_id=10127


  -Fred

-- 
Fred L. Drake, Jr.  <fdrake at acm.org>
PythonLabs at Zope Corporation

From tree at basistech.com  Tue Oct 21 12:23:29 2003
From: tree at basistech.com (Tom Emerson)
Date: Tue Oct 21 12:24:08 2003
Subject: [XML-SIG] Good visual diff for XML files?
Message-ID: <16277.23937.786680.637520@magrathea.basistech.com>

Is anyone aware of a good visual diff tool for XML documents?
Rational/IBM has a nice one in the latest ClearCase release, but it
isn't easily used for non-ClearCase objects.

TIA,

    -tree

-- 
Tom Emerson                                          Basis Technology Corp.
Software Architect                                 http://www.basistech.com
  "Beware the lollipop of mediocrity: lick it once and you suck forever"

From Nicolas.Chauvat at logilab.fr  Tue Oct 21 12:28:47 2003
From: Nicolas.Chauvat at logilab.fr (Nicolas Chauvat)
Date: Tue Oct 21 12:29:00 2003
Subject: [XML-SIG] Good visual diff for XML files?
In-Reply-To: <16277.23937.786680.637520@magrathea.basistech.com>
References: <16277.23937.786680.637520@magrathea.basistech.com>
Message-ID: <20031021162847.GF11238@logilab.fr>

On Tue, Oct 21, 2003 at 12:23:29PM -0400, Tom Emerson wrote:
> Is anyone aware of a good visual diff tool for XML documents?
> Rational/IBM has a nice one in the latest ClearCase release, but it
> isn't easily used for non-ClearCase objects.

http://www.logilab.org/projects/xmldiff

HTH,

-- 
Nicolas Chauvat

http://www.logilab.com - "Mais o? est donc Ornicar ?" - LOGILAB, Paris (France)

From noreply at sourceforge.net  Tue Oct 21 17:01:20 2003
From: noreply at sourceforge.net (SourceForge.net)
Date: Tue Oct 21 17:01:23 2003
Subject: [XML-SIG] [ pyxml-Bugs-827796 ] c14n: \011,
	\012 and \015 incorrectly escaped in XML strings
Message-ID: <E1AC3d2-0004J9-00@sc8-sf-web3.sourceforge.net>

Bugs item #827796, was opened at 2003-10-21 21:01
Message generated for change (Tracker Item Submitted) made by Item Submitter
You can respond by visiting: 
https://sourceforge.net/tracker/?func=detail&atid=106473&aid=827796&group_id=6473

Category: DOM
Group: None
Status: Open
Resolution: None
Priority: 5
Submitted By: Benoit Goudreault-Emond (bge)
Assigned to: Nobody/Anonymous (nobody)
Summary: c14n: \011, \012 and \015 incorrectly escaped in XML strings

Initial Comment:
It seems the c14n algorithm incorrectly replaces \011
(tab) by &#x9 (without semicolon!).  If one reads
http://www.w3.org/TR/xml-c14n#Example-Chars , it is
clear from the example that \011 should be replaced by
&#x9;

The same goes for \012 (LF) and \015 (CR).

Here's some test code that demonstrates the problem:

----
#! /usr/bin/env python

import sys
from xml.dom import minidom
from xml.dom.ext import c14n

example = '''<doc><elem attr=' &apos;  
&#x20;&#13;&#xa;&#9;   &apos; '/></doc>'''

dom = minidom.parseString(example)
print c14n.Canonicalize(dom)
----

Prints: 
<doc><elem attr=" '    &#xD&#xA&#x9   ' "></elem></doc>

According to the spec, it should print:
<doc><elem attr=" '    &#xD;&#xA;&#x9;   ' "></elem></doc>

Interestingly enough, test_c14n.py's test data reflects
the problem--that is, eg4's expected result, base64
encoded, does not contain the semicolons :{)


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

You can respond by visiting: 
https://sourceforge.net/tracker/?func=detail&atid=106473&aid=827796&group_id=6473

From noreply at sourceforge.net  Tue Oct 21 17:05:29 2003
From: noreply at sourceforge.net (SourceForge.net)
Date: Tue Oct 21 17:07:48 2003
Subject: [XML-SIG] [ pyxml-Patches-827802 ] Fix to bug ID 827796
Message-ID: <E1AC3h3-0005Eu-00@sc8-sf-web2.sourceforge.net>

Patches item #827802, was opened at 2003-10-21 21:05
Message generated for change (Tracker Item Submitted) made by Item Submitter
You can respond by visiting: 
https://sourceforge.net/tracker/?func=detail&atid=306473&aid=827802&group_id=6473

Category: DOM
Group: None
Status: Open
Resolution: None
Priority: 5
Submitted By: Benoit Goudreault-Emond (bge)
Assigned to: Nobody/Anonymous (nobody)
Summary: Fix to bug ID 827796

Initial Comment:
This patch fixes the c14n.py problem with escaping
characters \011, \012 and \015 in attributes.  It also
contains an update to test_c14n.py so the test reflects
the W3C's example 4 in the C14N TR
(http://www.w3.org/TR/xml-c14n#Example-Chars)

The patch assumes both files are in the current
directory--sorry about that.

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

You can respond by visiting: 
https://sourceforge.net/tracker/?func=detail&atid=306473&aid=827802&group_id=6473

From mnunes at inf.pucrs.br  Wed Oct 22 23:25:25 2003
From: mnunes at inf.pucrs.br (mnunes@inf.pucrs.br)
Date: Wed Oct 22 21:25:41 2003
Subject: [XML-SIG] Python module for OWL 
Message-ID: <200310230125.h9N1PPXb003440@toledo.inf.pucrs.br>

Hi Floks, 

I donīt know if this is in the scope of this SIG but do you know if thereīs anybody working on a Python module to deal with the OWL language. 

OWL is the brand new XML-based language for ontology description proposed by the W3C.

Greedings, 
   Marcelo

--
Marcelo Pereira Nunes
http://www.inf.pucrs.br/~mnunes/

From phthenry at earthlink.net  Thu Oct 23 02:03:01 2003
From: phthenry at earthlink.net (Paul Tremblay)
Date: Thu Oct 23 02:03:29 2003
Subject: [XML-SIG] turning off dtd resolver in sax
Message-ID: <20031023060301.GA20683@localhost.localdomain>

Is there a way to run SAX if the dtd in the document points to a url,
and the url cannot be retrieved? I can parse my documents with SAX so
long as I am connected to the internet. But when I am not connected, I
get an error that the url cannot be found. 

I could just delete the dtd, but this is kind of a hack. I am
distributing code, and I would like for the XML document which I am
parsing to have a dtd.

Here is a snippet of my code:


	parser = xml.sax.make_parser()
        parser.setFeature(feature_namespaces, 0)
        parser.setErrorHandler(ErrorHandler())
        section_handler = FormSections( 
            write_obj = write_obj,
            highest_level = self.__highest_level,
            )
        
	parser.setContentHandler(section_handler)
	parser.parse(self.__input_file)

thanks

Paul

        


-- 

************************
*Paul Tremblay         *
*phthenry@earthlink.net*
************************

From gia at webde-ag.de  Thu Oct 23 03:41:36 2003
From: gia at webde-ag.de (Gisbert Amm)
Date: Thu Oct 23 03:41:43 2003
Subject: [XML-SIG] Python module for OWL 
Message-ID: <74ADFA8C453ED611A71E00508BBBA13510E9477C@exchange1.cinetic.de>

> if there?s anybody working on a Python module to deal 
> with the OWL language. 
> 
Did you have a look at Tim Berners-Lee's Closed World Machine already? It's
written in python and has some basic OWL features that might be inspiring.

http://www.w3.org/2000/10/swap/doc/cwm.html

Regards,
Gisbert Amm

From Radovan.Chytracek at cern.ch  Thu Oct 23 08:17:05 2003
From: Radovan.Chytracek at cern.ch (Radovan Chytracek)
Date: Thu Oct 23 08:17:11 2003
Subject: [XML-SIG] turning off dtd resolver in sax
Message-ID: <AC71B50DCA239B469EE08BABF32AD2780123905C@cernxchg01.cern.ch>

Hi,

  I was having the same problem and tried to discuss it here without any
feedback, for details see:

http://mail.python.org/pipermail/xml-sig/2003-September/009876.html


where I have provided a solution to this. However, it does not work as
is because PyXML has for some reasons disabled EntityResolver proper
call sequence. I had to hack my local Python installation to make it
work. Hope this helps you a bit.

Radovan

> -----Original Message-----
> From: Paul Tremblay [mailto:phthenry@earthlink.net] 
> Sent: Thursday, October 23, 2003 8:03 AM
> To: xml-sig@python.org
> Subject: [XML-SIG] turning off dtd resolver in sax
> 
> 
> Is there a way to run SAX if the dtd in the document points 
> to a url, and the url cannot be retrieved? I can parse my 
> documents with SAX so long as I am connected to the internet. 
> But when I am not connected, I get an error that the url 
> cannot be found. 
> 
> I could just delete the dtd, but this is kind of a hack. I am 
> distributing code, and I would like for the XML document 
> which I am parsing to have a dtd.
> 
> Here is a snippet of my code:
> 
> 
> 	parser = xml.sax.make_parser()
>         parser.setFeature(feature_namespaces, 0)
>         parser.setErrorHandler(ErrorHandler())
>         section_handler = FormSections( 
>             write_obj = write_obj,
>             highest_level = self.__highest_level,
>             )
>         
> 	parser.setContentHandler(section_handler)
> 	parser.parse(self.__input_file)
> 
> thanks
> 
> Paul
> 
>         
> 
> 
> -- 
> 
> ************************
> *Paul Tremblay         *
> *phthenry@earthlink.net*
> ************************
> 
> _______________________________________________
> XML-SIG maillist  -  XML-SIG@python.org 
> http://mail.python.org/mailman/listinfo/xml-sig
> 

From ashearer at shearersoftware.com  Thu Oct 23 22:02:42 2003
From: ashearer at shearersoftware.com (Andrew Shearer)
Date: Thu Oct 23 22:02:48 2003
Subject: [XML-SIG] Re: turning off dtd resolver in sax
In-Reply-To: <E1ACi2H-0004YM-J8@mail.python.org>
Message-ID: <27402551-05C6-11D8-86D9-000393B3AC06@shearersoftware.com>

Apologies to the list for posting the same answer twice in a week, but 
hopefully this will be helpful:

> I had a similar problem with the first cut of a parser for Apple's 
> PList format. It worked fine when I was connected to the Internet, but 
> failed when I wasn't. The documents specified an Internet-based DTD 
> when they really could stand alone, so I used code similar to the 
> following:
>
> parser = xml.sax.make_parser()
> parser.setFeature(xml.sax.feature_external_ges, 0)
> parser.setFeature(xml.sax.feature_external_pes, 0)
>
> The complete code is at

>  <http://www.shearersoftware.com/software/developers/plist/>.

On Thursday, October 23, 2003, at 12:10  PM, Paul Tremblay 
<phthenry@earthlink.net> wrote:

> Is there a way to run SAX if the dtd in the document points to a url,
> and the url cannot be retrieved? I can parse my documents with SAX so
> long as I am connected to the internet. But when I am not connected, I
> get an error that the url cannot be found.
>
> I could just delete the dtd, but this is kind of a hack. I am
> distributing code, and I would like for the XML document which I am
> parsing to have a dtd.

--
Andrew Shearer
http://www.shearersoftware.com/


From noreply at sourceforge.net  Fri Oct 24 19:43:31 2003
From: noreply at sourceforge.net (SourceForge.net)
Date: Fri Oct 24 19:43:35 2003
Subject: [XML-SIG] [ pyxml-Patches-829905 ] c14n.py fix for bug #825115
Message-ID: <E1ADBad-00060q-00@sc8-sf-web2.sourceforge.net>

Patches item #829905, was opened at 2003-10-24 16:43
Message generated for change (Tracker Item Submitted) made by Item Submitter
You can respond by visiting: 
https://sourceforge.net/tracker/?func=detail&atid=306473&aid=829905&group_id=6473

Category: DOM
Group: None
Status: Open
Resolution: None
Priority: 5
Submitted By: Keith Beattie (ksbeattie)
Assigned to: Nobody/Anonymous (nobody)
Summary: c14n.py fix for bug #825115

Initial Comment:
The problem is that when inheriting attributes via the
initial_other_attrs arg of _do_element(), the xmlns
ones are not sorted by _sorter_ns() as they should be.
 The attached patch to c14n.py causes such inherited
attribs to be sorted properly. 

Also attached is a patch to test_c14n.py to add a test
case for this bug.

What is very curious about this is that the test case
I've added will pass with the old code.  This is
because PyExpat dom parser has a bug in it that
counteracts this one.  Namely that default namespace
attrib (xmlns='foo') are given a localName of None by
pyexpat and not 'xmlns'.  Since default namespace
attribs are ordered first by c14n, when using PyExpat,
c14n luckly does the right thing.  Changing
text_c14n.py to use another dom is probably a good idea...

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

You can respond by visiting: 
https://sourceforge.net/tracker/?func=detail&atid=306473&aid=829905&group_id=6473

From noreply at sourceforge.net  Fri Oct 24 21:12:29 2003
From: noreply at sourceforge.net (SourceForge.net)
Date: Fri Oct 24 21:12:46 2003
Subject: [XML-SIG] [ pyxml-Bugs-829930 ] localName is None for default
	namespace
Message-ID: <E1ADCyj-0000LM-00@sc8-sf-web2.sourceforge.net>

Bugs item #829930, was opened at 2003-10-24 18:12
Message generated for change (Tracker Item Submitted) made by Item Submitter
You can respond by visiting: 
https://sourceforge.net/tracker/?func=detail&atid=106473&aid=829930&group_id=6473

Category: pyexpat
Group: None
Status: Open
Resolution: None
Priority: 5
Submitted By: Keith Beattie (ksbeattie)
Assigned to: Fred L. Drake, Jr. (fdrake)
Summary: localName is None for default namespace

Initial Comment:
I believe that for default namespaces, localName should
be set to 'xmlns' not None.  minidom and 4Suite do this
and PyExpat uses None.  Attached is a short script that
demonstrates the difference between minidom, 4Suite and
PyExpat in this respect.

fwiw, this was discovered by noticing that my
regression test for another bug (#825115) in c14n.py
failed to fail on the original code.  See my comment in
patch #829905, if you're curious.

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

You can respond by visiting: 
https://sourceforge.net/tracker/?func=detail&atid=106473&aid=829930&group_id=6473

From phthenry at earthlink.net  Sat Oct 25 14:55:01 2003
From: phthenry at earthlink.net (Paul Tremblay)
Date: Sat Oct 25 14:56:27 2003
Subject: [XML-SIG] turning of dtd checker
Message-ID: <20031025185501.GA1766@localhost.localdomain>


Is there a way to run SAX if the dtd in the document points to a url,
and the url cannot be retrieved? I can parse my documents with SAX so
long as I am connected to the internet. But when I am not connected, I
get an error that the url cannot be found. 

I could just delete the dtd, but this is kind of a hack. I am
distributing code, and I would like for the XML document which I am
parsing to have a dtd.

Here is a snippet of my code:


	parser = xml.sax.make_parser()
        parser.setFeature(feature_namespaces, 0)
        parser.setErrorHandler(ErrorHandler())
        section_handler = FormSections( 
            write_obj = write_obj,
            highest_level = self.__highest_level,
            )
        
	parser.setContentHandler(section_handler)
	parser.parse(self.__input_file)

Thanks

Paul

-- 

************************
*Paul Tremblay         *
*phthenry@earthlink.net*
************************

From phthenry at earthlink.net  Sat Oct 25 15:15:27 2003
From: phthenry at earthlink.net (Paul Tremblay)
Date: Sat Oct 25 15:15:50 2003
Subject: [XML-SIG] turn off dtd check in SAX
Message-ID: <1067109344.1957.2.camel@localhost.localdomain>

Is there a way to run SAX if the dtd in the document points to a url,
and the url cannot be retrieved? I can parse my documents with SAX so
long as I am connected to the internet. But when I am not connected, I
get an error that the url cannot be found.

I could just delete the dtd, but this is kind of a hack. I am
distributing code, and I would like for the XML document which I am
parsing to have a dtd.

Here is a snippet of my code:


        parser = xml.sax.make_parser()
        parser.setFeature(feature_namespaces, 0)
        parser.setErrorHandler(ErrorHandler())
        section_handler = FormSections(
            write_obj = write_obj,
            highest_level = self.__highest_level,
            )

        parser.setContentHandler(section_handler)
        parser.parse(self.__input_file)




Thanks

Paul





From phthenry at earthlink.net  Sat Oct 25 15:22:10 2003
From: phthenry at earthlink.net (Paul Tremblay)
Date: Sat Oct 25 15:22:28 2003
Subject: [XML-SIG] turning of dtd checker
In-Reply-To: <20031025185501.GA1766@localhost.localdomain>
References: <20031025185501.GA1766@localhost.localdomain>
Message-ID: <20031025192210.GA1962@localhost.localdomain>

Apologies for posting my question three times. I didn't think my email
was getting through. In fact, the mail was getting put in a mail box I
didn't know existed.

Sorry again!

Paul

On Sat, Oct 25, 2003 at 02:55:01PM -0400, Paul Tremblay wrote:
> Date: Sat, 25 Oct 2003 14:55:01 -0400
> From: Paul Tremblay <phthenry@earthlink.net>
> To: xml-sig@python.org
> User-Agent: Mutt/1.4i
> Subject: [XML-SIG] turning of dtd checker
> 
> 
> Is there a way to run SAX if the dtd in the document points to a url,
> and the url cannot be retrieved? I can parse my documents with SAX so
> long as I am connected to the internet. But when I am not connected, I
> get an error that the url cannot be found. 
> 
> I could just delete the dtd, but this is kind of a hack. I am
> distributing code, and I would like for the XML document which I am
> parsing to have a dtd.
> 
> Here is a snippet of my code:
> 
> 
> 	parser = xml.sax.make_parser()
>         parser.setFeature(feature_namespaces, 0)
>         parser.setErrorHandler(ErrorHandler())
>         section_handler = FormSections( 
>             write_obj = write_obj,
>             highest_level = self.__highest_level,
>             )
>         
> 	parser.setContentHandler(section_handler)
> 	parser.parse(self.__input_file)
> 
> Thanks
> 
> Paul
> 
> -- 
> 
> ************************
> *Paul Tremblay         *
> *phthenry@earthlink.net*
> ************************
> 
> _______________________________________________
> XML-SIG maillist  -  XML-SIG@python.org
> http://mail.python.org/mailman/listinfo/xml-sig

-- 

************************
*Paul Tremblay         *
*phthenry@earthlink.net*
************************

From martin at v.loewis.de  Sun Oct 26 05:21:18 2003
From: martin at v.loewis.de (Martin v. =?iso-8859-15?q?L=F6wis?=)
Date: Sun Oct 26 05:21:40 2003
Subject: [XML-SIG] turning of dtd checker
In-Reply-To: <20031025185501.GA1766@localhost.localdomain>
References: <20031025185501.GA1766@localhost.localdomain>
Message-ID: <m3llr89u5d.fsf@mira.informatik.hu-berlin.de>

Paul Tremblay <phthenry@earthlink.net> writes:

> Is there a way to run SAX if the dtd in the document points to a url,
> and the url cannot be retrieved? 

You need to turn off processing of external general entities:

p.setFeature("http://xml.org/sax/features/external-general-entities",False)

In that case, the parser won't attempt to resolve the external DTD
subset, or references to external entities defined in the internal DTD
subset.

Regards,
Martin

From phthenry at earthlink.net  Sun Oct 26 13:48:24 2003
From: phthenry at earthlink.net (Paul Tremblay)
Date: Sun Oct 26 13:49:02 2003
Subject: [XML-SIG] turning of dtd checker
In-Reply-To: <m3llr89u5d.fsf@mira.informatik.hu-berlin.de>
References: <20031025185501.GA1766@localhost.localdomain>
	<m3llr89u5d.fsf@mira.informatik.hu-berlin.de>
Message-ID: <20031026184824.GA1754@localhost.localdomain>

On Sun, Oct 26, 2003 at 11:21:18AM +0100, Martin v. L?wis wrote:
> 
> Paul Tremblay <phthenry@earthlink.net> writes:
> 
> > Is there a way to run SAX if the dtd in the document points to a url,
> > and the url cannot be retrieved? 
> 
> You need to turn off processing of external general entities:
> 
> p.setFeature("http://xml.org/sax/features/external-general-entities",False)
> 

Thanks! That works exactly like I want. 

Paul

-- 

************************
*Paul Tremblay         *
*phthenry@earthlink.net*
************************

From Radovan.Chytracek at cern.ch  Mon Oct 27 05:15:15 2003
From: Radovan.Chytracek at cern.ch (Radovan Chytracek)
Date: Mon Oct 27 05:15:19 2003
Subject: [XML-SIG] turning of dtd checker
Message-ID: <AC71B50DCA239B469EE08BABF32AD278012390E2@cernxchg01.cern.ch>

> Paul Tremblay <phthenry@earthlink.net> writes:
> 
> > Is there a way to run SAX if the dtd in the document points 
> to a url, 
> > and the url cannot be retrieved?
> 
> You need to turn off processing of external general entities:
> 
> p.setFeature("http://xml.org/sax/features/external-general-ent
> ities",False)
> 
> In that case, the parser won't attempt to resolve the 
> external DTD subset, or references to external entities 
> defined in the internal DTD subset.
> 
> Regards,
> Martin

Well, this is solution only to the problem where one wants to parse an
XML document successfully in any case whether a DTD is accessible or
not. This might not be a correct approach because even if parsing in
non-validating mode the DTD might still contain some entities important
to the dosument structure.

On the other hand, nobody has anwereed my question where I needed to
guarantee, that an XML document parsing succeeds including references to
all external entities even in the case a DTD is not physically
accessible. This is required for disconnected mode of operation where
user has no network connection available on his/her laptop for example.
The solution to this is to use EntityResolver which for some reaqson
does not really work as expected. Well it works if one enables it but my
feeling is that for some reasons it has been intentionally disabled so
even if one implements and registers EntityResolver it is not called and
causes not really intuitive exception(s) being raised.

I would like to know what's a showstooper for EntityResolver proper
function. I suspect there is some infrastructure missing between SAX API
and parsers in PyXML.

Cheers

            Radovan

From martin at v.loewis.de  Mon Oct 27 18:43:01 2003
From: martin at v.loewis.de (=?ISO-8859-1?Q?=22Martin_v=2E_L=F6wis=22?=)
Date: Mon Oct 27 18:43:17 2003
Subject: [XML-SIG] turning of dtd checker
In-Reply-To: <AC71B50DCA239B469EE08BABF32AD278012390E2@cernxchg01.cern.ch>
References: <AC71B50DCA239B469EE08BABF32AD278012390E2@cernxchg01.cern.ch>
Message-ID: <3F9DAD85.3020102@v.loewis.de>

Radovan Chytracek wrote:
> On the other hand, nobody has anwereed my question where I needed to
> guarantee, that an XML document parsing succeeds including references to
> all external entities even in the case a DTD is not physically
> accessible. This is required for disconnected mode of operation where
> user has no network connection available on his/her laptop for example.
> The solution to this is to use EntityResolver 

Right.

> which for some reaqson
> does not really work as expected. 

Why do you say that? What did you do, what did you expect to happen,
and what happened instead?

> Well it works if one enables it but my
> feeling is that for some reasons it has been intentionally disabled so
> even if one implements and registers EntityResolver it is not called and
> causes not really intuitive exception(s) being raised.

Nothing like this is intentionally happening.

> I would like to know what's a showstooper for EntityResolver proper
> function.

Why do you say it does not function properly?

Regards,
Martin


From Radovan.Chytracek at cern.ch  Tue Oct 28 03:55:54 2003
From: Radovan.Chytracek at cern.ch (Radovan Chytracek)
Date: Tue Oct 28 03:55:59 2003
Subject: [XML-SIG] turning of dtd checker
Message-ID: <AC71B50DCA239B469EE08BABF32AD27801239125@cernxchg01.cern.ch>

Hi Martin,

    see:

http://mail.python.org/pipermail/xml-sig/2003-September/009871.html
http://mail.python.org/pipermail/xml-sig/2003-September/009875.html
http://mail.python.org/pipermail/xml-sig/2003-September/009876.html
http://mail.python.org/pipermail/xml-sig/2003-October/009937.html

Any comments welcome.

Cheers
         Radovan

> -----Original Message-----
> From: "Martin v. L?wis" [mailto:martin@v.loewis.de] 
> Sent: Tuesday, October 28, 2003 12:43 AM
> To: Radovan Chytracek
> Cc: xml-sig@python.org
> Subject: Re: [XML-SIG] turning of dtd checker
> 
> 
> Radovan Chytracek wrote:
> > On the other hand, nobody has anwereed my question where I 
> needed to 
> > guarantee, that an XML document parsing succeeds including 
> references 
> > to all external entities even in the case a DTD is not physically 
> > accessible. This is required for disconnected mode of 
> operation where 
> > user has no network connection available on his/her laptop for 
> > example. The solution to this is to use EntityResolver
> 
> Right.
> 
> > which for some reaqson
> > does not really work as expected.
> 
> Why do you say that? What did you do, what did you expect to 
> happen, and what happened instead?
> 
> > Well it works if one enables it but my
> > feeling is that for some reasons it has been intentionally 
> disabled so 
> > even if one implements and registers EntityResolver it is 
> not called 
> > and causes not really intuitive exception(s) being raised.
> 
> Nothing like this is intentionally happening.
> 
> > I would like to know what's a showstooper for EntityResolver proper 
> > function.
> 
> Why do you say it does not function properly?
> 
> Regards,
> Martin
> 
> 

From martin at v.loewis.de  Tue Oct 28 15:47:43 2003
From: martin at v.loewis.de (Martin v. =?iso-8859-15?q?L=F6wis?=)
Date: Tue Oct 28 15:48:08 2003
Subject: [XML-SIG] turning of dtd checker
In-Reply-To: <AC71B50DCA239B469EE08BABF32AD27801239125@cernxchg01.cern.ch>
References: <AC71B50DCA239B469EE08BABF32AD27801239125@cernxchg01.cern.ch>
Message-ID: <m3ism95btc.fsf@mira.informatik.hu-berlin.de>

"Radovan Chytracek" <Radovan.Chytracek@cern.ch> writes:

> http://mail.python.org/pipermail/xml-sig/2003-September/009871.html
> http://mail.python.org/pipermail/xml-sig/2003-September/009875.html
> http://mail.python.org/pipermail/xml-sig/2003-September/009876.html
> http://mail.python.org/pipermail/xml-sig/2003-October/009937.html
> 
> Any comments welcome.

I still can't tell, from these messages, what precisely you are
doing. Can you create a small example, please, with a Python script,
an XML file, and a DTD file?

The bug 814935, which being a true bug, should not matter at all. You
are looking at the source code of XMLFilterBase, which is never used
for anything. Instead, the standard entity resolver is
xml.sax.handler.EntityResolver, which does not suffer from the problem
you see.

Regards,
Martin


From roman at interview-machine.com  Wed Oct 29 05:55:37 2003
From: roman at interview-machine.com (roman@interview-machine.com)
Date: Wed Oct 29 05:55:47 2003
Subject: [XML-SIG] implementation of lookup... methods DOM Level 3
Message-ID: <32902.217.187.88.185.1067424937.squirrel@interview-machine.com>

Hi list,

In the current implementation of the DOM I missed some very useful methods
from DOM Level 3, lookupPrefix and lookupNamespaceURI of the interface
Node. In the spec there is also a good algorithm for these methods, so I
took them and implemented the methods as helper functions. They work very
well and it should be easy to integrate them as methods of Node. I attach
my helper module in case someone is interested...

Ciao, Roman

(BTW: I am new on this list, so please apologize if this issue has been
discussed before or something like that)



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From Radovan.Chytracek at cern.ch  Wed Oct 29 07:08:31 2003
From: Radovan.Chytracek at cern.ch (Radovan Chytracek)
Date: Wed Oct 29 07:08:35 2003
Subject: [XML-SIG] turning of dtd checker
Message-ID: <AC71B50DCA239B469EE08BABF32AD2780123919A@cernxchg01.cern.ch>

Hi Martin,

     that is exactly my problem. I am using a chain of XMlFilterBase objects in my application and that is where this problem has shown up. Do you have any suggestion how to proceed in case one wants to use XMFilterBase together with EntityResolver?

BTW, the problem has appeared even for the example code I shown in one the e-mails bellow (e.g. no XmlFilterBse used at all). But only after I have installed PyXML 8.3.0, not before. Any suggestion about that?

Ragards
Radovan

> "Radovan Chytracek" <Radovan.Chytracek@cern.ch> writes:
> 
> > http://mail.python.org/pipermail/xml-sig/2003-September/009871.html
> > http://mail.python.org/pipermail/xml-sig/2003-September/009875.html
> > http://mail.python.org/pipermail/xml-sig/2003-September/009876.html
> > http://mail.python.org/pipermail/xml-sig/2003-October/009937.html
> > 
> > Any comments welcome.
> 
> I still can't tell, from these messages, what precisely you 
> are doing. Can you create a small example, please, with a 
> Python script, an XML file, and a DTD file?
> 
> The bug 814935, which being a true bug, should not matter at 
> all. You are looking at the source code of XMLFilterBase, 
> which is never used for anything. Instead, the standard 
> entity resolver is xml.sax.handler.EntityResolver, which does 
> not suffer from the problem you see.
> 
> Regards,
> Martin
> 
> 

From tlo at alias.com  Wed Oct 29 16:47:25 2003
From: tlo at alias.com (Terence Lo)
Date: Wed Oct 29 16:49:07 2003
Subject: [XML-SIG] XML Objectify.. how to iterate through child tags?
Message-ID: <00ef01c39e66$3deab2b0$8d411dc6@ms.aliaswavefront.com>

Say I have an xml file (test.xml) that contains:

<test>
	<a>aaa</a>
	<b>bbb</b>
	<c>ccc</c>
</test>

source = XML_Objectify('test.xml').make_instance()

How do I dynamically iterate through the children tags and values of <test>?

I'd like to do something similar to what DOM does, (ie. childnode[0],
childnode[1].. etc)

Is this possible?  Anyone know? Any help would be greatly appreciated.

Thanks in advance.
t



From amk at amk.ca  Thu Oct 30 14:27:18 2003
From: amk at amk.ca (amk@amk.ca)
Date: Thu Oct 30 14:27:31 2003
Subject: [XML-SIG] HTML parsing: anyone use formatter?
Message-ID: <20031030192718.GA13220@rogue.amk.ca>

[Crossposted to python-dev, web-sig, and xml-sig.  Followups to
web-sig@python.org, please.]

I'm working on bringing htmllib.py up to HTML 4.01 by adding handlers for
all the missing elements.  I've currently been adding just empty methods to
the HTMLParser class, but the existing methods actually help render the HTML
by calling methods on a Formatter object. For example, the definitions for
the H1 element look like this:

    def start_h1(self, attrs):
        self.formatter.end_paragraph(1)
        self.formatter.push_font(('h1', 0, 1, 0))
		    
    def end_h1(self):
        self.formatter.end_paragraph(1)
        self.formatter.pop_font()

Question: should I continue supporting this in new methods?  This can only
go so far; a tag such as <big> or <small> is easy for me to handle, but
handling <form> or <frameset> or <table> would require greatly expanding the
Formatter class's repertoire.

I suppose the more general question is, does anyone use Python's formatter
module?  Do we want to keep it around, or should htmllib be pushed toward
doing just HTML parsing?  formatter.py is a long way from being able to
handle modern web pages and it would be a lot of work to build a decent
renderer.

--amk

From fincher.8 at osu.edu  Thu Oct 30 16:03:15 2003
From: fincher.8 at osu.edu (Jeremy Fincher)
Date: Thu Oct 30 15:04:57 2003
Subject: [XML-SIG] Re: [Python-Dev] HTML parsing: anyone use formatter?
In-Reply-To: <20031030192718.GA13220@rogue.amk.ca>
References: <20031030192718.GA13220@rogue.amk.ca>
Message-ID: <200310301603.15437.fincher.8@osu.edu>

On Thursday 30 October 2003 02:27 pm, amk@amk.ca wrote:
> I suppose the more general question is, does anyone use Python's formatter
> module?  Do we want to keep it around, or should htmllib be pushed toward
> doing just HTML parsing?  formatter.py is a long way from being able to
> handle modern web pages and it would be a lot of work to build a decent
> renderer.

I've never used it myself, though I'll admit that some software I've used (for 
searching the IMDB) does use it.

Jeremy

From markus_jais at yahoo.de  Thu Oct 30 16:19:23 2003
From: markus_jais at yahoo.de (Markus Jais)
Date: Thu Oct 30 16:20:50 2003
Subject: [XML-SIG] question on xmlproc source code
Message-ID: <1067548765.1920.6.camel@eagle>

hello

I am trying to understand some of xmlproc's code.

but now I have a maybe somewhat weird question.

the method "parse_end_tag" in xmlproc.py
seems to have a problem with indentation on my system. 
(I have the current cvs version of PyXML)

but the code seems to work. so this is probably a problem with my
system.
but I never had this with any other python source code before.
and the whole rest of xmlproc is ok.

for example there is somethin like this:

    if name != elem:
self.report_error(3023,(name,elem))

I hope it is now screwed up by the mail client. 

I tried it with 3 editors (vim, jedit and xemacs) and
both with only tabs and tabs emulated with spaces.

I know this may be strange but has anyone had the some problem
or any hints what to do ??

thanks in advance

Markus













From noreply at sourceforge.net  Thu Oct 30 21:09:06 2003
From: noreply at sourceforge.net (SourceForge.net)
Date: Thu Oct 30 21:09:11 2003
Subject: [XML-SIG] [ pyxml-Patches-833461 ] Updating ns.py with c14n
	standard URI
Message-ID: <E1AFOio-0001Vb-00@sc8-sf-web2.sourceforge.net>

Patches item #833461, was opened at 2003-10-30 18:09
Message generated for change (Tracker Item Submitted) made by Item Submitter
You can respond by visiting: 
https://sourceforge.net/tracker/?func=detail&atid=306473&aid=833461&group_id=6473

Category: None
Group: None
Status: Open
Resolution: None
Priority: 5
Submitted By: Keith Beattie (ksbeattie)
Assigned to: Nobody/Anonymous (nobody)
Summary: Updating ns.py with c14n standard URI

Initial Comment:
Attached is a patch for updating the identifier for
canonicalization.

This URI is taken from the c14n spec at:
http://www.w3.org/TR/xml-c14n which is the same as the
identifier XML Dig Sig wants as described in it's spec:
http://www.w3.org/TR/xmldsig-core/#sec-c14nAlg

I raised this question on the list in this post:
http://mail.python.org/pipermail/xml-sig/2003-June/009598.html
and got a positive reply, so here it is.

Also added is a definition for exclusive c14n with
comments, which follows the same pattern as 'regular'
c14n, as described in the spec for exc-c14n here:
http://www.w3.org/TR/xml-exc-c14n/#sec-Use

The first change really should happen, then second one
is candy.


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

You can respond by visiting: 
https://sourceforge.net/tracker/?func=detail&atid=306473&aid=833461&group_id=6473