Neil and Richard, hello.
<parenthesis>
On 26 Aug 2018, at 9:48, Neil Van Dyke wrote:
You could do all structural markup this way, or combine markup with
inferred bits.
Incidentally, your example is a good fit for how SGML (and then HTML)
was intended to be used, for text markup using elements and attributes
(but it does involve more typing, and SGML&HTML don't have TeX-like
blank line paragraph separation):
"Spoke to the client by telephone. Confirmed I would <TODO
DEADLINE="2018-08-28">send out the court form</TODO> on Tuesday."
Just as a parenthesis, SGML was originally conceived as something that
(trained) people would type without editor support, and the document
type definition has facilities for heavily tuning the lexer to support
abbreviation. Thus with a few declarations, you could set up an SGML
document in which a standard/unmodified SGML processor would parse
We must [todo 2018-08-28/send out the court forms].
in the same way that it would parse, say,
<para>We must <todo deadline="2018-08-28">send out the court
forms</todo>.</para>
(if I recall correctly -- it's been a while). It could quite possibly
handle newlines as paragraph breaks, too. The facilities to do this
were what amongst the things which were removed from SGML to get XML
(and made creating an XML parser merely a manageable headache).
This does not constitute a suggestion for immediate further work!
I mention this in part for sentimental reasons, because I was at one
point enjoying processing SGML documents using a language called DSSSL,
and decided to explore this language 'scheme' that it was reportedly an
implementation of, and I printed out R5RS. So DSSSL Good.
Best wishes,
Norman
</parenthesis>
--
Norman Gray : https://nxg.me.uk
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