Re: [xml] xhtml1 test case

[Daniel Veillard <veillard redhat com>]

On Fri, Oct 28, 2005 at 02:52:45PM -0700, Jain, Nilesh wrote:
> >  The parser is adding the tag to avoid problem with escaping at the
> XML
> > level and the script content.
>
> "Wrapping the content of the script or style element within a CDATA
> marked section avoids the expansion of these entities". so also mean if
> script data is not wrapped up in the CDATA tag it will be expand the
> entities. Which parser is doing, but after doing that it adds CDATA tag.
> Why? 

  Okay, I don't understand your sentence, and I'm afraid you didn't understood
mine. So I will recap for my last mail on that topic:

  if (a & b) is in the script and CDATA is not used this will be a fatal error
  if (a < b) is in the script and CDATA is not used this will be a fatal error

  => this is not XML this can't be parsed.

if enclosed in CDATA this can be parsed as-is
if not enclosed in CDATA this would have to be saved as
    (a &amp; b)
  or
    (a &lt; b)
which makes the script language simply very hard to read and prone to break.
That's why libxml2 when saving a script or style element from and XHTML
document do enclose the content in CDATA, the change in recent version is
that it does this only if & or < is found in the content of the script or
style element.

Daniel

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