From: Daniel Veillard (Daniel.Veillard@w3.org)
Date: Wed Dec 22 1999 - 05:04:11 EST
On Wed, Dec 22, 1999 at 01:55:43AM +0100, Mathias Hasselmann wrote:
>
> libxml currently seems not to recognise processing instructions
> (REC-XML 1.0, 1998-02-10, Chapter 2.6):
>
> »»» cut »»»
>
> Processing Instructions
>
> [16] PI ::= '<?' PITarget (S (Char* - (Char* '?>' Char*)))? '?>'
> [17] PITarget ::= Name - (('X' | 'x') ('M' | 'm') ('L' | 'l'))
>
> ««« cut «««
>
> That's a problem for XSLT parsers: XML document with embedded
> stylesheets have
> to start with:
>
> <?xml-stylesheet type="text/xml" href="#style1"?>
>
> (This instructs a XSLT-Parser to search for an element of the type
> <xsl:stylesheet> or <xsl:translation> with id="style1".)
>
> The current implementation of libxml denies parsing of such documents
> with the following error messages:
>
> »»» cut »»»
>
> [mathias@sam examples]$ tester embedded-stylesheet.xml
> embedded-stylesheet.xml:1: error: Blank needed after '<?xml'
> <?xml-stylesheet type="text/xml" href="#style1"?>
> ^
> embedded-stylesheet.xml:1: error: Blank needed here
> <?xml-stylesheet type="text/xml" href="#style1"?>
> ^
> embedded-stylesheet.xml:1: error: parsing XML declaration: '?>' expected
> <?xml-stylesheet type="text/xml" href="#style1"?>
> ^
> [mathias@sam examples]$
Right, but the XML spec clearly state taht any PI starting with XML
(upper or lower case) is in the reserved space for W3C specifications.
So I initially blocked those,
My gut feeling is that this should at least cause a warning if the
name is not one of those allowed by some of the W3C specs. I will
patch this,
Daniel
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