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Re: [xml] libxml2 add <p> tag

On Mon, Oct 07, 2002 at 10:08:56AM +0200, Morus Walter wrote:

Hi,


I've found the following problem with libxml2 2.4.16

[manu xx yy]$ cat /tmp/test.html 
<gsweb name="UploadFile">Upload</gsweb>/<gsweb name="ProcessFile">Processing</gsweb>

[manu xx yy]$ xmllint  /tmp/test.html  --html
/tmp/test.html:1: error: Tag gsweb invalid
<gsweb name="UploadFile">Upload</gsweb>/<gsweb name="ProcessFile">Processing</g
                       ^
/tmp/test.html:1: error: Tag gsweb invalid
<gsweb name="UploadFile">Upload</gsweb>/<gsweb name="ProcessFile">Processing</g
                                                                ^
<?xml version="1.0" standalone="yes"?>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN" "http://www.w3.org/TR/REC-html40/loose.dtd";>
<html><body><gsweb name="UploadFile">Upload</gsweb><p>/<gsweb 
name="ProcessFile">Processing</gsweb></p></body></html>
                                                    ^
____________________________________________________|


I get the same thing with a file containing:
<?xml version="1.0" standalone="yes"?>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN" "http://www.w3.org/TR/REC-html40/loose.dtd";>
<html><body><a name="UploadFile">Upload</a>/<a name="ProcessFile">Processing</a></body></html>


I've found nothing about this problem in the list. Is it a fixed bug or how can I avoid this <p> addition 
?


This is a characteristic of libxmls html parser.
The parser has a built in "knowledge" about allowed structures and adds
paragraphes if it finds content in contexts where it "thinks" they were
required.
It might be considered a bug, that the paragraph is not inserted before
the first <a>-element in your second example (the p insertion seems to 
be triggered by PCDATA content and not by inline elements like <a>,
which is not to consequent). 
OTOH tag soup parsing is always a mess...
And there no way do guess the right behaviour for user created elements
like gsweb.

Apart from modifying libxml, there is AFAIK no way of preventing the
<p> addition in the html parser.


  Yup, there is an associated bug report which I didn't closed though
it's in fixed state:
  http://bugzilla.gnome.org/show_bug.cgi?id=87235

  I should probably apply your last suggestion, though it would change
the output of nearly all regression tests,

Daniel

-- 
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veillard redhat com  | libxml GNOME XML XSLT toolkit  http://xmlsoft.org/
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