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(Som) Streamline prepositions+passives.

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It looks confusing, but reduces 198 concrete categories from VP and 
VPSlash.
This commit is contained in:
Inari Listenmaa
2019-06-28 17:55:51 +02:00
parent 8fe4fd7362
commit 57f814fc2e
4 changed files with 45 additions and 37 deletions
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src/somali/ParamSom.gf
+15 -9
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@@ -156,14 +156,18 @@ param
-- Prepositions
param
Preposition = u | ku | ka | la | noPrep | passive ;
Preposition = u | ku | ka | la | noPrep ;
PrepositionPlus = P Preposition | Passive ; -- Hack: RGL only supports V2s as passive, so I can reuse V2's preposition slot for passives as well, and save >200 parameters. (Don't ask.)
PrepCombination = ugu | uga | ula | kaga | kula | kala
| Single Preposition ;
| Single PrepositionPlus ;
oper
combine : Preposition -> Preposition -> PrepCombination = \p1,p2 ->
let oneWay : Preposition => Preposition => PrepCombination =
combine : PrepositionPlus -> Preposition -> PrepCombination = \p1,p2 ->
let oneWay : PrepositionPlus => Preposition => PrepCombination =
\\x,y => case <x,y> of {
<Passive,noPrep> => Single Passive ;
<Passive,p> => Single (P p) ; -- TODO check if this ever happens
<P z,_> => case <z,y> of {
<u,u|ku> => ugu ;
<u,ka> => uga ;
<u,la> => ula ;
@@ -171,13 +175,15 @@ oper
ku|ka> => kaga ;
<ku,la> => kula ;
<ka,la> => kala ;
<noPrep,p> => Single p ;
<p,noPrep> => Single p ;
<p,_> => Single p } -- for trying both ways
in case oneWay ! p2 ! p1 of {
<noPrep,p> => Single (P p) ;
<p,noPrep> => Single x ;
<p,_> => Single x }} -- for trying both ways
in case oneWay ! P p2 ! (pp2prep p1) of {
Single _ => oneWay ! p1 ! p2 ;
x => x } ;
z => z } ;
pp2prep : PrepositionPlus -> Preposition = \pp ->
case pp of {P p => p ; Passive => noPrep} ;
--------------------------------------------------------------------------------
-- Verbs