Re: [lojban] Yet another PEG question ...

[Frank <frankdmartinez@gmail.com>]

ki'e .i What of "rp-expression-tail <- rp-expression operator
rp-expression-tail / ()"? The '()' seems to be superfluous, yes?

On 18 July 2011 12:56, Robin Lee Powell <rlpowell@digitalkingdom.org> wrote:
> That's ZOI stuff; that's actual variables for Java code; see
> rats/lojban.java
>
> ZOI cannot be handled by straight PEG or CFG; it requires code hooks
> or a true CSG as far as we can tell.
>
> -Robin
>
> On Mon, Jul 18, 2011 at 10:02:45AM -0400, Frank wrote:
>> I also see "innerWordSEP2" and "innerWordSEP3" in the grammar file
>> and not in the morphology one but do not seem to be able to find a
>> definition. What are these terms, if Anyone remembers? (I know how
>> easy it can be to code something and then forget why One did
>> that.)
>>
>> mi'e xuinkrbin.
>>
>> On 17 July 2011 13:12, .alyn.post. <alyn.post@lodockikumazvati.org> wrote:
>> > On Sun, Jul 17, 2011 at 11:10:41AM -0600, .alyn.post. wrote:
>> >> On Sun, Jul 17, 2011 at 01:41:26PM -0300, Jorge Llambías wrote:
>> >> > On Sun, Jul 17, 2011 at 12:44 PM, Frank <frankdmartinez@gmail.com> wrote:
>> >> > >        NORATS CMAVO-word-pre <- " CMAVO=( "
>> >> > >        NORATS CMAVO <- CMAVO-word-pre inner-word close-paren
>> >> > > /If/, and this is a big 'if', I understand correctly, such lines mean
>> >> > > a parser attempting to find a cmavo in a portion of lojban text should
>> >> > > look for (literal) "CMAVO=(" followed by some other text followed by a
>> >> > > literal ")", which would suggest some form of pre-interpretation of
>> >> > > said lojban text before parsing. But how could such be? Would not the
>> >> > > purpose of the parser be to perform such interpretation?
>> >> >
>> >> > In his implementation of the PEG, Robin divided the grammar into two
>> >> > stages, morphology and syntax. The output of the morphology stage
>> >> > produced something containing such things as "CMAVO=( da )" and then
>> >> > the syntax part worked with that output. There's no need to do this
>> >> > other than resolving some practical concern of that implementation.
>> >> > The official PEG (when we have it) should not have such things.
>> >> >
>> >>
>> >> jbgenturfa'i does not include these productions, and instead "more
>> >> directly" interfaces with the morphology by treating the morphology
>> >> and grammar as a single PEG grammar.  The behavior above was so
>> >> Robin and xorxes could work and debug together; and perhaps for
>> >> other reasons.  Exactly as xorxes said, they aren't needed and are
>> >> an artifact of camxes.
>> >>
>> >> Will you talk a little about what you're doing?  So far your
>> >> questions are exactly the ones I asked, when I started using camxes,
>> >> and the answers I got then are now included in jbogenturfa'i.
>> >>
>> >
>> > I'm sorry, I was reading my e-mail in reverse order, and I see you
>> > have answered this question.
>> >
>> > -Alan
>> > --
>> > .i ma'a lo bradi cu penmi gi'e du
>> >
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>> >
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>
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