Re: [xml] DTD Validation

[Daniel Veillard <veillard redhat com>]

On Fri, Jul 28, 2006 at 05:49:34AM -0500, Bipin Mistry wrote:
> hello all 
> I am using following code to read XML buffer to XML_DOC pointer
>
> xml_doc = xmlReadMemory(xml_memory_reference, 
>           strlen(xml_memory_reference), 
>           "noname.xml", 
>           NULL, 
>           XML_PARSE_DTDVALID);
>
> & my XML Buffer Contains DTD definations...
>
> 1. I have my.EXE which has above code.
> 2. DTD files in the same folder.
> 3. When EXE runs it works fine.
>
> Now the queries & ploblem...
> 1.  How Can't I relocate the DTD files and still the process can 
>     be workded out without any error or the warning message.

  http://www.w3.org/TR/REC-xml/#NT-ExternalID
  [Definition: The SystemLiteral is called the entity's system identifier. It is meant to be converted to a 
URI reference (as defined in [IETF RFC 2396], updated by [IETF RFC 2732]), as part of the process of 
dereferencing it to obtain input for the XML processor to construct the entity's replacement text.]

  "relative URIs are relative to the location of the resource within which the entity declaration occurs"

  that's what drives libxml2 behaviour.

>     As right now when EXE folder do not have DTD files it shows 
>     me following at the command prompt.
>
>
>     ................  "FileName.DTD"
>                       ^
>
>
> 2. How can I validate the XML buffer with the DTD specified. 

 provide the correct URI-Reference pointing to the DTD

>    & if above thing heppands how can i trap it to show warning
>    / error to user.

 like any other error in libxml2, which I think I answer on an average of
2 times a weeks those days,

Daniel

-- 
Daniel Veillard      | Red Hat http://redhat.com/
veillard redhat com  | libxml GNOME XML XSLT toolkit  http://xmlsoft.org/
http://veillard.com/ | Rpmfind RPM search engine http://rpmfind.net/