[lojban] Re: My parser, SI, SA, and ZOI

[Bob LeChevalier <lojbab@lojban.org>]

At 10:21 AM 5/10/04 -0700, you wrote:
> > In answer to the question in this thread, I believe that the text
> > comment in the body of the grammar after the rule defining LohU 436
> > addresses the intent for interactions between si and zo and zoi.
>
>Thanks for finding that, Bob.  The next comment is general bitchiness
>and not specifically directed at you.
>
><bitchy>
>
><sarcasm>
>
>Oh, my gosh, why didn't *I* think to look there?
>
></sarcasm>
>
>Apparently, pre-parser instructions are scattered about the landside in
>that file, instead of being confined to the section labelled as such.
>Oh well.
>
></bitchy>

Actually, it is perfectly fine to bitch at me, since I put it there.  The 
stuff embedded in the grammar dates from before I attempted at a MUCH later 
date to add preparser directions for Cowan and other who might be writing 
parsers, and is intended to be explanatory of the rules rather than 
parser-writing directions.  It was thus intended to be used by the 
grammar/textbook writer (at the time I thought it would be me, so it was 
mostly a note to myself, which it turns out I haven't forgotten after 15 years)

I'm sorry, if it helps.  I didn't forsee in 1988-9 how the YACC grammar 
might be used in 2004, and at the time it was being used by a dozen people 
who regularly discussed such things on the phone.  There was then no EBNF, 
nor any instructions in the beginning, so anyone using the grammar at all 
was pretty familiar with the whole thing.

>Here's the text in question:
>
>     It may be seen that any of the ZO/ZOI/LOhU trio of quotation markers
>     may contain the powerful metalinguistic erasers.  Since these
>     quotations are not parsed internally, these operators are ignored
>     within the quote. To erase a ZO, then, two SI's are needed after
>     giving a quoted word of any type.  ZOI takes four SI's, with the
>     ENTIRE BODY OF THE QUOTE treated as a single 'word' since it is one
>     selma'o.  Thus one for the quote body, two for the single word
>     delimiters, and one for the ZOI. In LOhU, the entire body is treated
>     as a single word, so three SI's can erase it.

lojbab


-- 
lojbab                                             lojbab@lojban.org
Bob LeChevalier, Founder, The Logical Language Group
(Opinions are my own; I do not speak for the organization.)
Artificial language Loglan/Lojban:                 http://www.lojban.org




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