Rick Jelliffe <> writes:
> peter murray-rust wrote:
>> Remember also that XML was a direct descendant of SGML. SGML was
>> typical first version system - over-ambitious and (I believe) never
>> fully implemented in a single piece of software.
> There are two optional features in SGML that were not implemented by
> the dominant parsers
> (OmniMark, SP, SGMLS) which were DATATAG and CONCUR. IIRC there were
> private systems that used them however. (E.g. TEI has CONCUR YES.)
For the record, the Mark-It parser from the SEMA Group implemented all
the optional features. It was the first SGML parser that I ever used,
so I ended up using all the features, including DATATAG and CONCUR but
maybe not RANK, at various times.
Do I miss all the features? Not at all, not even CONCUR. When you
need CONCUR, you really need CONCUR, but happily I only needed it the
once.
Regards,
Tony.
