/Andrew Paterson/:
Note: I came to XML from EDI where mandatory composites with all
elements optional are fairly common and have the obvious meaning.
I must say that I am glad that there are only two elements in the group
- if there were a lot of elements, it would require a long and
complicated "choice" structure to represent it!
I guess the thing is EDIFACT format is different than XML in means
one can't have next sibling element (subsegment or field) without
having a previous sibling, like in CSV document one can't define 3rd
column without explicitly having a second one:
value1,,value3
May be the XML Schema could be extended to define such model, but
don't expect that to happen soon.
--
Stanimir
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