Public bug reported:
The xml.parsers.xmlproc.xmlutils.EntityParser class has a method
"skip_ws" which skips whitespace. However, if it encounters end-of-file,
it will raise "OutOfDataException" instead of returning normally at the
end of the file. As a result, the catalog files from the "w3c-dtd-xhtml"
package, some of which have whitespace at the end, are not parseable.
Example program:
from xml.parsers.xmlproc import catalog
xhtmlCatalog = catalog.SAX_catalog(
'/usr/share/xml/xhtml/schema/dtd/1.0/catalog',
catalog.CatParserFactory()
)
Output:
$ python readcatalog.py
ERROR: Construct started, but never completed at
/usr/share/xml/xhtml/schema/dtd/1.0/catalog:19:28
TEXT: '
'
Note that you will only get this output after patching bug 131595,
otherwise the parsing will abort before the end of the file.
Suggested solution:
Disable the following lines in the "skip_ws" method:
if match.end() == self.datasize:
raise OutOfDataException()
See "_xmlplus/parsers/xmlproc/xmlutils.py", line 451.
Version info: python-xml 0.8.4-6ubuntu4 on feisty.
** Affects: python-xml (upstream)
Importance: Undecided
Status: New
** Affects: python-xml (Ubuntu)
Importance: Undecided
Status: New
** Also affects: python-xml (upstream)
Importance: Undecided
Status: New
--
EntityParser does not accept whitespace at end of file
https://bugs.launchpad.net/bugs/131604
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