[lojban] peg grammar parse tree cmavo

["Chris Capel" <lojban-out@lojban.org>]

I think it would be nice to have "cmavo" in the parse tree for all the
cmavo. This can *easily* be accomplished by changing, for instance,

"A-pre <- pre-clause A spaces?"

to

"A-pre <- pre-clause &A CMAVO spaces?"

Alternately, the same could be done in the morphology, by changing

"A <- &cmavo (etc etc)"

to

"A <- &(etc etc) cmavo"

>>From a layout standpoint, I think it would make more sense to have it
in the morphology. But either might have a performance penalty. But
there's another option, too.

Rats has a feature, (and I could easily add a feature in my parser)
where you can give names to parts of a production. They call it
"semantic something-or-other". So A-pre would look like

"A-pre <- pre-clause A:cmavo spaces?"

"cmavo" there would just be a label that affects the parse tree,
creating an extra node called "cmavo" that contains "A".

What do you think?

Chris Capel
-- 
"What is it like to be a bat? What is it like to bat a bee? What is it
like to be a bee being batted? What is it like to be a batted bee?"
-- The Mind's I (Hofstadter, Dennet)


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