Re: [xml] xmlSaveFormatFileEnc() creating invalid XML

[Murray Cumming <murrayc murrayc com>]

On Fri, 2011-09-09 at 10:21 -0400, Jason Viers wrote:
> On 9/9/2011 05:37, Murray Cumming wrote:
> > Here is a simple test case that takes the text from an apparently-valid
> > UTF-8 file
>
> Not all valid UTF-8 is valid in XML.  Only a subset, as defined in
> http://www.w3.org/TR/2008/REC-xml-20081126/#charsets
>
> Note that Form Feed (0xC) is not allowed.  Your original input document 
> contains a formfeed character, and this is what ends up being invalid.  
> It's not a matter of escaping; form feed as a literal byte, numeric 
> reference, etc., is not allowed.
> Stripping the form feed from the input allows it to serialize properly.

Ah, I didn't know that it couldn't be there even if escaped. Thanks.

Shouldn't libxml warn about that at the same time that it would escape
characters such as & and < rather than writing invalid XML?

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