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From David Crossley <cross...@indexgeo.com.au>
Subject spurious symbol ">" in pipeline -Was:[BUG] DTD validation shows bugs
Date Sat, 15 Dec 2001 08:24:49 GMT
Stefano Mazzocchi wrote:
> Michael Hartle wrote:
> > 1.) Whenever I used a pipeline like (any generator parsing XML with DTD)
> > => (no transformer) => (HTML serializer), the first character returned
> > and visible astonishingly was always a ">". I assume this is Xerces
> > related, as changing the serializer type to "xml" produces an
> > ArrayOutOfBoundsException in the Xerces parser. To see this live, take
> > the entity catalog demo in the sitemap, remove the stylesheet
> > transformation to see the first bug and then change the serializer type
> > to "xml" to see the second. Adding an XSLT transformer to the pipeline,
> > even if it does not change anything, seems to be a workaround for now.
> 
> I have encountered this before. The problem with SAX is that doesn't
> guarantee well-formness as DOM does, being an event-driven approach, of
> course.

Hang on. The parser guarantees well-formedness. Try removing
closing </title> tag on index.xml then do "build docs". I suppose
that you mean that once Cocoon starts building a pipeline, and
potentially aggregating other SAX streams into it, then the overall
stream is not guaranteed to be well-formed.

The strange thing wilth Michael's demonstration, is that a bare ">"
has jumped into the pipeline ahead of the XML content stream.
The same happens if you similarly tweak the "hello" sitemap entry.

> The Xalan internal tree builder/indexer (DTM), seems to be kinda
> 'tollerant' in small SAX failures. Try enabling intra-pipe logging and
> see what that gives you.

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