Hi
Our group has to generate file in IFF format which is
similar to XML format.
Another group does the processing of this file and
loads into a Oracle database.
I am not sure how the parser works.
I will ask them to provide more information.
Even the tags are out of order
for eg
For a certain datafile I added tags like following
<IFF_SOURCE>
<IFF_HEADER>
<IFF_DATALOG>
</IFF_DATALOG>
</IFF_SOURCE>
When I use XMLout I see the following output
<IFF_SOURCE>
<IFF_DATALOG>
</IFF_DATALOG>
<IFF_HEADER Parser = "0.1" />
</IFF_SOURCE>
As we are using hash references, looks like we can't
put the tags in the order it got entered.
Does the tag ordering matters for XML parser?
I will also check with the group that uses this IFF
file as input and find out whether the ordering of the
tag matters.
Thanks for your reply.
-Nirai
--- Michel Rodriguez <[EMAIL PROTECTED]> wrote:
> Niraikalai Vijay wrote:
>
> > I am using XML::Simple to generate XML file for a
> data
> > file.
> >
> > As XMLout uses hash variable, the tags
> ,attributes
> > for the tags that got populated comes out in
> random
> > order.
> >
> > But I need to generate XML file with the tags
> comes
> > out in the order they got added.
>
> Why? The attribute order is traditionally
> irrelevent, and should not
> matter to any proper XML parser that parses the data
> file. If the data
> is not processed using a parser... then really you
> (or the consumer of
> the data at least) are not really working with XML.
>
> The only application I have heard of that would need
> the order to be
> preserved is some Microsoft VB tool I think. And of
> course XML editors.
>
> > Is there any solution to avoid this randomness of
> hash
> > values?
>
> Probably not with XML::Simple. You can create
> "ordered" hashes using
> Tie::IxHash and see where that leads you, but the
> last time I tried
> tie-ing the hashes that XML::Simple uses was quite
> frustrating: the code
> does a lot of re-creating hashes, and so looses the
> tie-ed-ness. At
> least that was on the parsing side, maybe the
> writing part of the code
> is simpler.
>
> --
> Michel Rodriguez
> Perl & XML
> xmltwig.com
>
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