paulsteigel / web-xslt Goto Github PK

I'm following the instructions in: http://codespeak.net/lxml/xpathxslt.html#xslt

$ python
Python 2.6.5 (r265:79063, Apr 16 2010, 13:09:56) 
[GCC 4.4.3] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> import lxml.etree
>>> doc = lxml.etree.parse(file('pmml2texfrag.xsl'))
>>> xslt = etree.XSLT(doc)
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
NameError: name 'etree' is not defined
>>> xslt = lxml.etree.XSLT(doc)
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "xslt.pxi", line 399, in lxml.etree.XSLT.__init__ (src/lxml/lxml.etree.c:107912)
lxml.etree.XSLTParseError: Attribute 'p': Failed to compile the expression 
'sum($position,@position/number(.))' in the AVT.
>>> 

This could, of course, be a lxml issue (but I don't know either way).

Jonathan

What steps will reproduce the problem?
Transform the following content markup:

<math xmlns='http://www.w3.org/1998/Math/MathML'>
<apply>
  <minus/>
  <cn>1</cn>
  <apply>
    <minus/>
    <cn>9</cn>
    <cn>2</cn>
  </apply>
</apply>
</math>

using ctop.xsl

What is the expected output? What do you see instead?
I would have expected to see 1 - (9-2).
Instead I see 1 - 9 - 2. The underlying XML does not contain mo's for parens, 
or mfenced.

What version of the product are you using? On what operating system?
Testing using the latest version of ctop.xsl from this website as of 9/20/11, 
on Ubuntu 11.04, Firefox 6.02.

Please provide any additional information below.
I'm new to MathML in general, and so may be providing bad input, or doing 
something else incorrectly, but I'm seeing lots of other correctly rendered 
transformations, just not things involving precedence and the minus operator. 

The CSS validator at 
http://qa-dev.w3.org:8001/css-validator/

fails to validate pmathmlcss.css citing "parse error"

Is this expected ?