[4suite] Bug in (Pretty)Print ?

[Nicolas Chauvat]

File test.xml is a one-liner:

<xsltemplate match="email/headers[substring-after(subject,'address')]"/>

Then try this:

>>> from xml.dom.ext.reader import Sax2
>>> a = Sax2.FromXmlFile('test.xml')
>>> Print(a)
<xsltemplate match='email/headers[substring-after(subject,'address')]'/>

Notice the simple quote that replaced the double quotes ? That makes
trouble if you then try to re-read the string using Sax2:

>>> from xml.dom.ext.reader import Sax2
>>> a = Sax2.FromXmlFile('test.xml')
>>> import StringIO
>>> s = StringIO.StringIO()
>>> Print(a,s)
>>> b = Sax2FromXml(s.getvalue())
Traceback (innermost last):
  File "<stdin>", line 1, in ?
  File "/usr/lib/python1.5/site-packages/xml/dom/ext/reader/Sax2.py", line
410, in FromXml
    rv = FromXmlStream(fp, ownerDocument, validate, keepAllWs, catName,
saxHandlerClass)
  File "/usr/lib/python1.5/site-packages/xml/dom/ext/reader/Sax2.py", line
400, in FromXmlStream
    parser.parseFile(stream)
  File "/usr/lib/python1.5/site-packages/xml/sax/drivers/drv_pyexpat.py",
line 80, in parseFile
    self.__report_error()
  File "/usr/lib/python1.5/site-packages/xml/sax/drivers/drv_pyexpat.py",
line 96, in __report_error
    self.err_handler.fatalError(saxlib.SAXParseException(msg,None,self))
  File "/usr/lib/python1.5/site-packages/xml/dom/ext/reader/Sax2.py", line
380, in fatalError
    raise exception
xml.sax.saxlib.SAXParseException: not well-formed at :1:59

Simple work-around is "always use single quotes when defining attributes
in your xml files".

I checked the spec and
http://www.w3.org/TR/1998/REC-xml-19980210.html#NT-AttValues says:

[10] AttValue ::=    '"' ([^<&"] | Reference)* '"' 
                  |  "'" ([^<&'] | Reference)* "'"

I suppose it's (Pretty)Print that has to be fixed.

-- 
Nicolas Chauvat

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