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gf-rgl/resource-0.6/italian/TypesIta.gf
2003-12-16 15:39:07 +00:00

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--1 Italian Word Classes and Morphological Parameters
--
-- This is a resource module for Italian morphology, defining the
-- morphological parameters and word classes of Italian.
-- The morphology is so far only
-- complete w.r.t. the syntax part of the resource grammar.
-- It does not include those parameters that are not needed for
-- analysing individual words: such parameters are defined in syntax modules.
instance TypesIta of TypesRomance = {
-- First we give values to the abstract types.
param
Case = Nom | Acc | CPrep Prep ;
Prep = P_di | P_a | P_da | P_in | P_su | P_con ;
NPForm = Ton Case | Aton Case | Poss Number Gender ;
--2 Prepositions
--
-- The type $Case$ in $types.Ita.gf$ has the dative and genitive
-- cases, which are relevant for pronouns and the definite article,
-- but which are otherwise expressed by prepositions.
oper
prepCase = \c -> case c of {
Nom => [] ;
Acc => [] ;
CPrep p => strPrep p
} ;
strPrep : Prep -> Str = \p -> case p of {
P_di => "di" ;
P_a => "a" ;
P_da => "da" ;
P_in => "in" ;
P_su => "su" ;
P_con => "con"
} ;
oper
CaseA = Case ;
NPFormA = NPForm ;
nominative = Nom ;
accusative = Acc ;
genitive = CPrep P_di ;
dative = CPrep P_a ;
stressed = Ton ;
unstressed = Aton ;
oper
pform2case = \p -> case p of {
Ton x => x ;
Aton x => x ;
Poss _ _ => genitive
} ;
case2pform = \c -> case c of {
Nom => Aton Nom ;
Acc => Aton Acc ;
_ => Ton c
} ;
case2pformClit = \c -> case c of {
Nom => Aton Nom ;
Acc => Aton Acc ;
CPrep P_a => Aton c ;
_ => Ton c
} ;
-- Comparative adjectives are only sometimes formed morphologically
-- (actually: by different morphemes).
mkAdjComp : (_,_ : AForm => Str) -> AdjComp =
\buono, migliore ->
{s = table {Pos => buono ; _ => migliore}} ;
-- Usually the comparison forms are built by prefixing the word
-- "più". The definite article needed in the superlative is provided in
-- $syntax.Ita.gf$.
adjCompLong : Adj -> AdjComp = \caro ->
mkAdjComp
caro.s
(\\gn => "più" ++ caro.s ! gn) ;
-- Relative pronouns: the case-dependent parameter type.
param RelForm = RSimple Case | RComplex Gender Number Case ;
oper RelFormA = RelForm ;
--2 Relative pronouns
--
-- The simple (atonic) relative pronoun shows genuine variation in all of the
-- cases.
relPronForms = table {
Nom => "che" ;
Acc => "che" ;
CPrep P_a => "cui" ; --- variant a cui
CPrep p => strPrep p ++ "cui"
} ;
-- Verbs: conversion from full verbs to present-tense verbs.
verbPres = \amare -> {s = table {
VInfin => amare.s ! Inf ;
VFin Ind n p => amare.s ! Indi Pres n p ;
VFin Con n p => amare.s ! Cong Pres n p ;
VImper np => amare.s ! Imper np ;
VPart g n => amare.s ! Part PresP g n
}} ;
-- The full conjunction is a table on $VForm$:
param
Tempo = Pres | Imperf ;
TempoP = PresP | PassP ;
VForm =
Inf
| Indi Tempo Number Person
| Pass Number Person
| Fut Number Person
| Cong Tempo Number Person
| Cond Number Person
| Imper NumPersI
| Ger
| Part TempoP Gender Number ;
-- This is the full verb type.
oper Verbum = {s : VForm => Str} ;
}