> > My advice : first experiment XmlLight and then switch to PXP if you lack
> > features.
> >
> > http://tech.motion-twin.com/xmllight
>
> I like you advice. I've looked at your library and it's conciseness and
> lack of dependencies pleases me.
>
> BTW, I need to save some short binary data in the XML format (e.g. MD5
> 128bits hash). Therefore, I would like to transform from/to an OCaml
> binary string type into a string suitable for printing in an XML file
> (in a CDATA field). Which code would you recommend to do that the "XML
> way"?  At first sight, I intend to use Gerd's code to encode/decode MIME
> and base64 strings.

If your goal is to minimise dependencies, just writing some lines of B64
encode/decode is a good idea (btw, this could be a good add-on for ExtLib :
http://ocaml-lib.sf.net ).

> As another side note, I also intend to read and write gziped XML files,
> using Xavier's camlzip package. As your module uses Lexing.from_* to get
> input file, I'll probably add an SFunction source type to be able to use
> Lexing.from_function. In the same way, I'll probably modify your output
> functions (Xml.to_string) to be able to ouput into a Gzip.out_channel
> without producing the whole XML file in a string.
>
> I'll gladly accept any advice on how to use your code,

I think you don't need any special advice in order to add the SFunction to
XmlLight, it looks easy.
For gzip, XmlLight has 2 printers : Xml.to_string for "compact" mode
(without any line returns or indentation) and Xml.to_string_fmt for
"formatted" mode (a lot more user-readable). Writing a custom "compact"
printer which directly output the data into a Gzip.out_channel is also
something easy to do (look at to_string in xml.ml for example). Another way
is to add an event-driven printer that would be able to output on any
underlying data structure. If you need this, don't hesitate to ask and I
will add this to XmlLight.

You can contact me again if you have any question.
Regards,

Nicolas Cannasse

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