The first problem is that the parser does not allow multiple "bo"s. That is why it won't parse. Additional bos would have no meaning, grammatical or otherwise.Jacob Errington wrote:
The title says it all; the following won't parse:
{.i broda .ija'ebo brode .iseri'abobo brodi}
Semantically, it should parse meaning that {.i brode .iseri'abo brodi}
is the right-hand operand of {.ija'ebo}.
On a related note, even-higher-precedence grouping with bo is not
possible for ijeks; the following won't parse:
.i (broda .ijebo (brode .ijebo ((brodi .ijebobo brodo) .ijebo brodu)))
Parentheses show intended parse.
Furthermore, multiple {bo} are not allowed in tanru groupings:
{.i (broda bo ((brode bo bo brodi) bo brodo))}
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 mi'e la tsani mu'o
If you use only one bo in each .i compound, then all of them will group pairwise STRICTLY from the right. So
.i broda .ija'e brode .iseri'abo brodi
groups
.i broda .i(ja'e brode .iseri'abo brodi)
Note that you don't need a bo at all before the brode.
For your second example, this results:
.i broda .ije( brode .ijebo( brodi .ijebo( brodo .ijebo brodu)))
There is no provision using bo to make something other than the rightmost group first.
If you want to mix left and right grouping, you need tu'e/tu'u forethought to mark the left groupings. See CLL chapter 14 section 8 example 8.3 through 8.6, which has good discussion of the whys and wherefores. The notes after 8.6 specificall say that afterthought connectives with bo are primarily for simple _expression_ of the special case of right grouping. Anything really complex needs the bracketing that is possible with forethought connection (and I observe that human beings don't generally formulate complex groupings in afterthought).
i broda .ije brode .ijetu'e brodi .ije brodo tu'u .ijebo brodu
gives the bracketing you showed, with the brodi/brodo pair grouping left, marked by tu'e/tu'u. If you only used bo then you would parenthesize sentences from the right (and again you don't need a bo before the brode).
Sentence logical connection is a difficult problem, especially when you try to account for logical scope, so it is designed to be less flexible.
More broadly, really complex constructs are more easily expressed using gi'ebo/gi'eke for right and left grouping in afterthought, and ga/gi for forethought. Since these constructs connect multiple "bridi-tails" (selbri plus trailing sumti) within one .i sentence, for maximal flexibility, you have to but all the sumti including x1 after the selbri. These are also described in that same chapter of CLL.
lojbab
--
Bob LeChevalier lojbab@lojban.org www.lojban.org
President and Founder, The Logical Language Group, Inc.
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