[xml] external entities related sax parser bug

[Petr Pajas <pajas ufal ms mff cuni cz>]

Hi Daniel,

the attached xml file and external entity file produce a very strange
result when parsed with SAX interface: the events for an expanded
entity content appear three times as if there were three occurrences
of the entity. The output of

testSAX --noent sax-2.xml 

is also attached as out.txt.

Sorry I'm not able to provide a patch. I'm not really familiar with
libxml2's internals as I usually use it only by means of XML::LibXML
for Perl.

Tested on tuesday's CVS, RedHat 7.3.

Thanks,

-- Petr

<?xml version="1.0" encoding="ISO-8859-2"?>
<!DOCTYPE text [
   <!ENTITY ent SYSTEM "sax-2.ent">
]>
<text>
&ent;
</text>

Attachment: sax-2.ent
Description: Binary data

SAX.setDocumentLocator()
SAX.startDocument(encoding(ISO-8859-2))
SAX.internalSubset(text, , )
SAX.entityDecl(ent, 2, (null), sax-2.ent, (null))
SAX.externalSubset(text, , )
SAX.startElement(text)
SAX.characters(
, 1)
SAX.getEntity(ent)
SAX.startElement(foo)
SAX.endElement(foo)
SAX.ignorableWhitespace(
, 1)
SAX.startElement(bar)
SAX.endElement(bar)
SAX.ignorableWhitespace(
, 1)
SAX.startElement(baz)
SAX.endElement(baz)
SAX.characters(
, 1)
SAX.startElement(foo)
SAX.endElement(foo)
SAX.ignorableWhitespace(
, 1)
SAX.startElement(bar)
SAX.endElement(bar)
SAX.ignorableWhitespace(
, 1)
SAX.startElement(baz)
SAX.endElement(baz)
SAX.characters(
, 1)
SAX.startElement(foo)
SAX.endElement(foo)
SAX.characters(
, 1)
SAX.startElement(bar)
SAX.endElement(bar)
SAX.characters(
, 1)
SAX.startElement(baz)
SAX.endElement(baz)
SAX.characters(
, 1)
SAX.characters(
, 1)
SAX.endElement(text)
SAX.endDocument()