Re: RPG and xml

[Scott Klement <rpg400-l@xxxxxxxxxxxxxxxx>]

hi Sharon,

RPG doesn't currently provide a way to write XML, but frankly, it's 
trivial to write it yourself, or to use CGIDEV2 to write it.  This is 
very different from parsing it, which would be prohibitively difficult 
to do yourself.

I don't like the idea of IBM adding a tool to build XML from a DS 
because data structures simply lack enough information to be used to 
generate the structure of an XML document.

A trivial example:

D customer        ds
D   custno                      10a   inz('1234')
D   name                        20a   inz('Scott Klement')

Should this be rendered as:

    <customer custno="1234" name="Scott Klement" />

Or should it be:

    <customer custno="1234">
       <name>Scott Klement</name>
    </customer>

Or should it be:

    <customer>
       <custno>1234</custno>
       <name>Scott Klement</name>
    </customer>

Should trailing blanks be stripped or not stripped from the values? 
What encoding should the data be stored in?  Should it have to insert 
"CDATA" tags anywhere to protect the internal contents?  Should it 
base64 encode data?   There's just a lot of information that isn't 
available in a DS that would be needed

I could continue...

I guess in the end, it's just not that difficult to do this:

   xml = '<customer>' +
         '<custno>'+ %trim(custno) +'</custno>+
         '<name>'+ %trim(name) +'</name>'
         '</customer>';

It's easy enough to do that I don't find myself wanting an easier 
alternative.  Though if I did, CGIDEV2 provides a really easy way to do 
it as well.


On 2/3/2010 2:25 PM, Wintermute, Sharon wrote:
> I need some direction.  I have used the xml-into to parse xml documents
> all the time and I know how to get it to work.  Now I have to create and
> xml document to send out.  I need to create the document in the IFS so I
> can use MQ to send it out.
>
>
>
> I like the data structure approach of xml-into, is there something
> similar for creating xml?
>
>
>
> FYI: It needs to be an RPG routine so that others can support it.
>
>
>
> TIA,
>
>
>
>
>
> Sharon Wintermute