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Re: [lojban] Higher-precedence Grouping with {bo} Is Impossible for TAG Sentence Connectives




On Sat, May 11, 2013 at 10:37 PM, Jacob Errington <nictytan@gmail.com> wrote:

It just seems like multiple {bo} is illegal across the board. Bug or feature? Could this even be implemented? If it can, should we?


I can see two ways of implementing it in PEG (or BNF):

(1) Define an upper limit on the number of grouping precedences you would allow. Then it's just a matter of adding a new rule for each level you want for each type of connective. If you decide 100 bo is the maximum then 101 bo will be ungrammatical.

(2) Require of the parser that it just tells you whether the text is grammatical or not, but not ask that it return the "right" parse tree. Then you can allow as many bo as you want, but the parse won't always give the correct grouping.

Neither of the two seem worth it for a feature that would probably never be used in any case.

mu'o mi'e xorxes

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