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gf-core/lib/src/experimental/PredicationEng.gf

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concrete PredicationEng of Predication = open Prelude in {
-- English predication, based on Swedish
-- two principles:
-- - keep records discontinuous as long as possible (last step from Cl to S)
-- - select from tables as soon as possible (first step from V to VP)
-- a question: would it make sense to make this into a functor?
param
Agr = Sg | Pl ;
Case = Nom | Acc ;
STense = Pres | Past | Fut | Cond ;
Anteriority = Simul | Anter ;
Polarity = Pos | Neg ;
VForm = VInf | VPres | VPast | VPastPart | VPresPart ;
Voice = Act | Pass ;
FocusType = NoFoc | FocSubj | FocObj ; -- sover hon/om hon sover, vem älskar hon/vem hon älskar, vem sover/vem som sover
oper
defaultAgr = Sg ;
ComplCase = Str ; -- preposition
lincat
Arg = {s : Str} ;
V = {
v : VForm => Str ;
c1 : ComplCase ;
c2 : ComplCase ;
isSubjectControl : Bool ;
isAux : Bool ;
} ;
VP = {
v : Agr => Str * Str * Str ; -- ska,ha,sovit
inf : Str * Str ; -- ha,sovit
c1 : ComplCase ;
c2 : ComplCase ;
adj : Agr => Str ;
obj1 : (Agr => Str) * Agr ;
obj2 : (Agr => Str) * Bool ; -- subject control = True
adv : Str ;
adV : Str ;
ext : Str
} ;
oper Clause = {
v : Str * Str * Str ;
inf : Str * Str ;
adj,obj1,obj2 : Str ;
adv : Str ;
adV : Str ;
ext : Str ;
subj : Str ;
c3 : ComplCase -- for a slashed adjunct, not belonging to the verb valency
} ;
lincat
Cl = Clause ;
QCl = Clause ** {
foc : Str ; -- the focal position at the beginning, e.g. *vem* älskar hon
focType : FocusType ; --- if already filled, then use other place: vem älskar *vem*
} ;
VPC = {
v : Agr => Str ;
inf : Agr => Str ;
c1 : ComplCase ;
c2 : ComplCase
} ;
ClC = {
s : Str ;
c3 : ComplCase ;
} ;
Tense = {s : Str ; t : STense} ;
Ant = {s : Str ; a : Anteriority} ;
Pol = {s : Str ; p : Polarity} ;
NP = {s : Case => Str ; a : Agr} ;
Adv = {s : Str ; isAdV : Bool} ;
S = {s : Str} ;
Utt = {s : Str} ;
AP = {
s : Agr => Str ;
c1, c2 : ComplCase ;
obj1 :
Agr => Str
} ;
CN = {
s : Agr => Str ;
c1, c2 : ComplCase ;
obj1 :
Agr => Str
} ;
IP = {s : Str ; a : Agr} ;
Prep = {s : Str} ;
Conj = {s : Str} ;
IAdv = {s : Str} ;
lin
aNone, aS, aV, aA, aQ, aN = {s = []} ;
aNP a = a ;
TPres = {s = [] ; t = Pres} ;
TPast = {s = [] ; t = Past} ;
TFut = {s = [] ; t = Fut} ;
TCond = {s = [] ; t = Cond} ;
ASimul = {s = [] ; a = Simul} ;
AAnter = {s = [] ; a = Anter} ;
PPos = {s = [] ; p = Pos} ;
PNeg = {s = [] ; p = Neg} ;
UseV a t p _ v = {
v = \\agr => tenseV (a.s ++ t.s ++ p.s) t.t a.a p.p Act agr v ;
inf = tenseInfV a.s a.a p.p Act v ;
c1 = v.c1 ;
c2 = v.c2 ;
adj = noObj ;
obj1 = <noObj, defaultAgr> ; ---- not used, just default value
obj2 = <noObj, v.isSubjectControl> ;
adV = negAdV p ;
adv = [] ;
ext = [] ;
} ;
PassUseV a t p _ v = {
v = \\agr => tenseV (a.s ++ t.s ++ p.s) t.t a.a p.p Pass agr v ;
inf = tenseInfV a.s a.a p.p Pass v ;
c1 = v.c1 ;
c2 = v.c2 ;
adj = noObj ;
obj1 = <noObj, defaultAgr> ; ---- not used, just default value
obj2 = <noObj, True> ; -- becomes subject control even if object control otherwise "*she was promised by us to love ourselves"
adV = negAdV p ;
adv = [] ;
ext = [] ;
} ;
AgentPassUseV a t p _ v np = {
v = \\agr => tenseV (a.s ++ t.s ++ p.s) t.t a.a p.p Pass agr v ;
inf = tenseInfV a.s a.a p.p Pass v ;
c1 = v.c1 ;
c2 = v.c2 ;
adj = \\a => [] ;
obj1 = <noObj, defaultAgr> ;
obj2 = <noObj, True> ;
adV = negAdV p ;
adv = appComplCase agentCase np ; ---- add a specific field for agent?
ext = [] ;
} ;
UseAP a t p _ ap = {
v = \\agr => be_Aux (a.s ++ t.s ++ p.s) t.t a.a p.p agr ;
inf = tenseInfV a.s a.a p.p Act be_V ;
c1 = ap.c1 ;
c2 = ap.c2 ;
adj = \\a => ap.s ! a ;
obj1 = <ap.obj1, defaultAgr> ;
obj2 = <noObj, True> ; --- there are no A3's
adV = negAdV p ;
adv = [] ;
ext = [] ;
} ;
SlashV2 x vp np = vp ** {
obj1 : (Agr => Str) * Agr = <\\a => np.s ! Acc, np.a> -- np.a for object control ---- Acc to be abstracted
} ;
SlashV3 x vp np = addObj2VP vp (\\a => np.s ! Acc) ; -- control is preserved ---- Acc to be abstracted
ComplVS x vp cl = addExtVP vp (that_Compl ++ declSubordCl (lin Cl cl)) ; ---- sentence form
ComplVQ x vp qcl = addExtVP vp (questSubordCl qcl) ; ---- question form
ComplVV x vp vpo = addObj2VP vp (\\a => infVP a vpo) ; ---- infForm
ComplVA x vp ap = addObj2VP vp (\\a => ap.s ! a ++ ap.obj1 ! a) ; ---- adjForm
ComplVN x vp cn = addObj2VP vp (\\a => cn.s ! a ++ cn.obj1 ! a) ; ---- cnForm
SlashV2S x vp cl = addExtVP vp (that_Compl ++ declSubordCl (lin Cl cl)) ; ---- sentence form
SlashV2Q x vp cl = addExtVP vp (questSubordCl (lin QCl cl)) ; ---- question form
SlashV2V x vp vpo = addObj2VP vp (\\a => infVP a (lin VP vpo)) ; ---- infForm
SlashV2A x vp ap = addObj2VP vp (\\a => ap.s ! a ++ ap.obj1 ! a) ; ---- adjForm
SlashV2N x vp cn = addObj2VP vp (\\a => cn.s ! a ++ cn.obj1 ! a) ; ---- cn form
ReflVP x vp = vp ** {
obj1 : (Agr => Str) * Agr = <\\a => reflPron a, defaultAgr> ; --- hack: defaultAgr will not be used but subj.a instead
} ;
ReflVP2 x vp = vp ** {
obj2 : (Agr => Str) * Bool = <\\a => reflPron a, vp.obj2.p2> ; --- subj/obj control doesn't matter any more
} ;
PredVP x np vp = vp ** {
v = vp.v ! np.a ;
subj = np.s ! Nom ;
adj = vp.adj ! np.a ;
obj1 = vp.c1 ++ vp.obj1.p1 ! np.a ; ---- apply complCase
obj2 = vp.c2 ++ vp.obj2.p1 ! (case vp.obj2.p2 of {True => np.a ; False => vp.obj1.p2}) ; ---- apply complCase
c3 = noComplCase ; -- for one more prep to build ClSlash
} ;
PrepCl p x cl = cl ** { -- Cl/NP ::= Cl PP/NP
c3 = prepComplCase p ;
} ;
SlashClNP x cl np = cl ** { -- Cl ::= Cl/NP NP
adv = cl.adv ++ appComplCase cl.c3 np ; ---- again, adv just added
c3 = noComplCase ; -- complCase has been consumed
} ;
-- QCl ::= Cl by just adding focus field
QuestCl x cl = cl ** {foc = [] ; focType = NoFoc} ; -- NoFoc implies verb first: älskar hon oss
QuestIAdv x iadv cl = cl ** {foc = iadv.s ; focType = FocObj} ; -- FocObj implies Foc + V + Subj: varför älskar hon oss
QuestVP x ip vp = vp ** {
v = vp.v ! ip.a ;
foc = ip.s ; -- vem älskar henne
focType = FocSubj ;
subj = [] ;
adj = vp.adj ! ip.a ;
obj1 = vp.c1 ++ vp.obj1.p1 ! ip.a ; ---- appComplCase
obj2 = vp.c2 ++ vp.obj2.p1 ! (case vp.obj2.p2 of {True => ip.a ; False => vp.obj1.p2}) ; ---- appComplCase
c3 = noComplCase ; -- for one more prep to build ClSlash ---- ever needed for QCl?
} ;
QuestSlash x ip cl =
let
ips = cl.c3 ++ ip.s ; -- in Cl/NP, c3 is the only prep ---- appComplCase for ip
focobj = case cl.focType of {
NoFoc => <ips, [], FocObj> ; -- put ip object to focus if there is no focus yet
t => <[], ips, t> -- put ip object in situ if there already is a focus
} ;
in cl ** {
foc = focobj.p1 ;
focType = focobj.p3 ;
subj = cl.subj ;
obj1 = cl.obj1 ++ focobj.p2 ; ---- just add to a field?
c3 = noComplCase ;
} ;
UseCl cl = {s = declCl cl} ;
UseQCl cl = {s = questCl cl} ;
UseAdvCl adv cl = {s = adv.s ++ declInvCl cl} ;
UttS s = s ;
AdvCl a x cl = cl ** case a.isAdV of {True => {adV = cl.adV ++ a.s ; adv = cl.adv} ; False => {adv = cl.adv ++ a.s ; adV = cl.adV}} ;
AdvQCl a x cl = cl ** {adv = cl.adv ++ a.s} ;
PresPartAP x v = {
s = \\a => v.v ! vPresPart a ;
c1 = v.c1 ; -- tittande på henne
c2 = v.c2 ;
obj1 = noObj ;
} ;
PastPartAP x v = {
s = \\a => v.v ! vPastPart a ;
c1 = v.c1 ;
c2 = v.c2 ;
obj1 = noObj ;
} ;
AgentPastPartAP x v np = {
s = \\a => v.v ! vPastPart a ;
c1 = v.c1 ;
c2 = v.c2 ;
obj1 = \\_ => appComplCase agentCase np ; ---- addObj
} ;
StartVPC c x v w = { ---- some loss of quality seems inevitable
v = \\a =>
let vv = v.v ! a ; wv = w.v ! a
in
vv.p1 ++ v.adV ++ vv.p2 ++ vv.p3 ++ v.adj ! a ++
v.c1 ++ v.obj1.p1 ! a ++ v.c2 ++ v.obj2.p1 ! a ++ v.adv ++ v.ext ---- appComplCase
++ c.s ++
wv.p1 ++ w.adV ++ wv.p2 ++ wv.p3 ++ w.adj ! a ++ ---- appComplCase
w.c1 ++ w.obj1.p1 ! a ++ w.c2 ++ w.obj2.p1 ! a ++ w.adv ++ w.ext ;
inf = \\a =>
infVP a (lin VP v) ++ c.s ++ infVP a (lin VP w) ;
c1 = [] ; ---- w.c1 ? --- the full story is to unify v and w...
c2 = [] ; ---- w.c2 ?
} ;
UseVPC x vpc = { ---- big loss of quality (overgeneration) seems inevitable
v = \\a => <[], [], vpc.v ! a> ;
inf = <[], vpc.inf ! defaultAgr> ; ---- agreement
c1 = vpc.c1 ;
c2 = vpc.c2 ;
adj = \\a => [] ;
obj1 = <noObj, defaultAgr> ;
obj2 = <noObj,True> ;
adv,adV = [] ;
ext = [] ;
} ;
StartClC c x a b = {
s = declCl (lin Cl a) ++ c.s ++ declCl (lin Cl b) ;
c3 = b.c3 ; ----
} ;
UseClC x cl = {
subj = [] ;
v = <[],[],cl.s> ; ----
inf = <[],[]> ;
adj = [] ;
obj1 = [] ;
obj2 = [] ;
adV = [] ;
adv = [] ;
ext = [] ;
c3 = cl.c3 ;
} ;
---- the following may become parameters for a functor
oper
vPastPart : Agr -> VForm = \_ -> VPastPart ;
vPresPart : Agr -> VForm = \_ -> VPresPart ;
be_V : V = lin V {v = mkVerb "be" "is" "was" "been" "being" ; c1,c2 = [] ; isAux = True ; isSubjectControl = False} ;
negAdV : Pol -> Str = \p -> p.s ;
reflPron : Agr -> Str = \a -> case a of {Sg => "herself" ; Pl => "us"} ;
infVP : Agr -> VP -> Str = \a,vp ->
let
a2 = case vp.obj2.p2 of {True => a ; False => vp.obj1.p2}
in
vp.adV ++ (vp.inf.p1 | []) ++ vp.inf.p2 ++ ---- *hon tvingar oss att sovit
vp.adj ! a ++ vp.c1 ++ vp.obj1.p1 ! a ++ vp.c2 ++ vp.obj2.p1 ! a2 ++ vp.adv ++ vp.ext ;
tenseV : Str -> STense -> Anteriority -> Polarity -> Voice -> Agr -> V -> Str * Str * Str =
\sta,t,a,p,o,agr,v -> case o of {
Act => tenseActV sta t a p agr v ;
Pass => tensePassV sta t a p agr v
} ;
tenseActV : Str -> STense -> Anteriority -> Polarity -> Agr -> V -> Str * Str * Str = \sta,t,a,p,agr,v ->
let vt = case <t,agr> of {
<Pres,Sg> => VPres ;
<Past|Cond,_ > => VPast ;
_ => VInf
}
in
case <t,a> of {
<Pres|Past, Simul> =>
case v.isAux of {
True => <sta ++ v.v ! vt, [], []> ;
False => case p of {
Pos => <[], sta ++ v.v ! vt, []> ; -- this is the deviating case
Neg => <do_Aux vt p, [], sta ++ v.v ! VInf>
| <do_Aux vt Pos, not_Str p, sta ++ v.v ! VInf>
}
} ;
<Pres|Past, Anter> => <have_Aux vt p, [], sta ++ v.v ! VPastPart>
| <have_Aux vt Pos, not_Str p, sta ++ v.v ! VPastPart> ;
<Fut|Cond, Simul> => <will_Aux vt p, [], sta ++ v.v ! VInf>
| <will_Aux vt Pos, not_Str p, sta ++ v.v ! VInf> ;
<Fut|Cond, Anter> => <will_Aux vt p, have_Aux VInf Pos, sta ++ v.v ! VPastPart>
| <will_Aux vt Pos, not_Str p ++ have_Aux VInf Pos, sta ++ v.v ! VPastPart>
} ;
tensePassV : Str -> STense -> Anteriority -> Polarity -> Agr -> V -> Str * Str * Str = \sta,t,a,p,agr,v ->
let
be = be_Aux sta t a p agr ;
done = v.v ! VPastPart
in
<be.p1, be.p2, be.p3 ++ done> ;
tenseInfV : Str -> Anteriority -> Polarity -> Voice -> V -> Str * Str = \sa,a,p,o,v ->
case a of {
Simul => <[], sa ++ v.v ! VInf> ; -- hon vill sova
Anter => <have_Aux VInf Pos, sa ++ v.v ! VPastPart> -- hon vill (ha) sovit
} ;
be_Aux : Str -> STense -> Anteriority -> Polarity -> Agr -> Str * Str * Str = \sta,t,a,p,agr ->
let
beV = tenseActV sta t a p agr be_V
in
case <t,a,p,agr> of {
<Pres,Simul,Pos,Sg> => <"is" ++ sta, [], []>
| <Predef.BIND ++ "'s" ++ sta, [], []> ;
<Pres,Simul,Pos,Pl> => <"are" ++ sta, [], []>
| <Predef.BIND ++ "'re" ++ sta, [], []> ;
<Pres,Simul,Neg,Sg> => <"is" ++ sta, "not", []>
| <Predef.BIND ++ "'s" ++ sta, "not", []>
| <"isn't" ++ sta, [], []> ;
<Pres,Simul,Neg,Pl> => <"are" ++ sta, "not", []>
| <Predef.BIND ++ "'re" ++ sta, "not", []>
| <"aren't" ++ sta, [], []> ;
<Past,Simul,Pos,Pl> => <"were" ++ sta, [], []> ;
<Past,Simul,Neg,Sg> => <"was" ++ sta, "not", []>
| <"wasn't" ++ sta, [], []> ;
<Past,Simul,Neg,Pl> => <"were" ++ sta, "not", []>
| <"weren't" ++ sta, [], []> ;
_ => beV
} ;
declCl : Clause -> Str = \cl -> cl.subj ++ cl.v.p1 ++ cl.adV ++ cl.v.p2 ++ restCl cl ;
declSubordCl : Clause -> Str = declCl ;
declInvCl : Clause -> Str = declCl ;
questCl : QCl -> Str = \cl -> cl.foc ++ cl.v.p1 ++ cl.subj ++ cl.adV ++ cl.v.p2 ++ restCl cl ;
questSubordCl : QCl -> Str = \cl ->
let
rest = cl.subj ++ cl.adV ++ cl.v.p1 ++ (cl.v.p2 | []) ++ restCl cl
in case cl.focType of {
NoFoc => "if" ++ cl.foc ++ rest ; -- om hon sover
FocObj => cl.foc ++ rest ; -- vem älskar hon / varför hon sover
FocSubj => cl.foc ++ "som" ++ rest -- vem som älskar henne
} ;
that_Compl : Str = "that" | [] ;
-- this part is usually the same in all reconfigurations
restCl : Clause -> Str = \cl -> cl.v.p3 ++ cl.adj ++ cl.obj1 ++ cl.obj2 ++ cl.adv ++ cl.ext ++ cl.c3 ;
agentCase : ComplCase = "by" ;
appComplCase : ComplCase -> NP -> Str = \p,np -> p ++ np.s ! Acc ;
noComplCase : ComplCase = [] ;
prepComplCase : Prep -> ComplCase = \p -> p.s ;
noObj : Agr => Str = \\_ => [] ;
addObj2VP : VP -> (Agr => Str) -> VP = \vp,obj -> vp ** {
obj2 = <\\a => vp.obj2.p1 ! a ++ obj ! a, vp.obj2.p2> ;
} ;
addExtVP : VP -> Str -> VP = \vp,ext -> vp ** {
ext = ext ;
} ;
---- the lexicon is just for testing: use standard Eng lexicon and morphology instead
lin
sleep_V = mkV "sleep" "slept" "slept" [] [] ;
walk_V = mkV "walk" ;
love_V2 = mkV "love" ;
look_V2 = mkV "look" "at" [] ;
believe_VS = mkV "believe" ;
tell_V2S = mkV "tell" "told" "told" [] [] ;
prefer_V3 = mkV "prefer" [] "to" ;
want_VV = mkV "want" [] "to" ;
force_V2V = mkV "force" [] "to" ;
--- promise_V2V = mkV "promise" [] "to" ** {isSubjectControl = True} ;
wonder_VQ = mkV "wonder" ;
become_VA = mkV "become" "became" "become" [] [] ;
become_VN = mkV "become" "became" "become" [] [] ;
make_V2A = mkV "make" "made" "made" [] [] ;
promote_V2N = mkV "promote" [] "to" ;
ask_V2Q = mkV "ask" ;
old_A = {s = \\_ => "old" ; c1 = [] ; c2 = [] ; obj1 = \\_ => []} ;
married_A2 = {s = \\_ => "married" ; c1 = "to" ; c2 = [] ; obj1 = \\_ => []} ;
eager_AV = {s = \\_ => "eager" ; c1 = [] ; c2 = "to" ; obj1 = \\_ => []} ;
easy_A2V = {s = \\_ => "easy" ; c1 = "for" ; c2 = "to" ; obj1 = \\_ => []} ;
professor_N = {s = table {Sg => "professor" ; Pl => "professors"} ; c1 = [] ; c2 = [] ; obj1 = \\_ => []} ;
manager_N2 = {s = table {Sg => "manager" ; Pl => "managers"} ; c1 = "for" ; c2 = [] ; obj1 = \\_ => []} ;
she_NP = {s = table {Nom => "she" ; Acc => "her"} ; a = Sg} ;
we_NP = {s = table {Nom => "we" ; Acc => "us"} ; a = Pl} ;
today_Adv = {s = "today" ; isAdV = False} ;
always_AdV = {s = "always" ; isAdV = True} ;
who_IP = {s = "who" ; a = Sg} ;
PrepNP p np = {s = p.s ++ np.s ! Acc ; isAdV = False} ;
with_Prep = {s = "with"} ;
and_Conj = {s = "and"} ;
why_IAdv = {s = "why"} ;
oper
mkV = overload {
mkV : Str -> V = \s -> lin V {v = mkVerb s (s + "s") (edV s) (edV s) (ingV s) ; c1 = [] ; c2 = [] ; isAux,isSubjectControl = False} ;
mkV : Str -> Str -> Str -> V = \s,p,q -> lin V {v = mkVerb s (s + "s") (edV s) (edV s) (ingV s) ; c1 = p ; c2 = q ; isAux,isSubjectControl = False} ;
mkV : Str -> Str -> Str -> Str -> Str -> V = \s,t,u,p,q -> lin V {v = mkVerb s (s + "s") t u (ingV s) ; c1 = p ; c2 = q ; isAux,isSubjectControl = False} ;
} ;
mkVerb : Str -> Str -> Str -> Str -> Str -> VForm => Str = \go,goes,went,gone,going -> table {
VInf => go ;
VPres => goes ;
VPast => went ;
VPastPart => gone ;
VPresPart => going
} ;
edV : Str -> Str = \s -> case s of {us + "e" => us ; _ => s} + "ed" ;
ingV : Str -> Str = \s -> case s of {us + "e" => us ; _ => s} + "ing" ;
will_Aux : VForm -> Polarity -> Str = \vf,p -> case <vf,p> of {
<VInf|VPres, Pos> => "will" | Predef.BIND ++ "'ll" ;
<VInf|VPres, Neg> => "won't" ;
<VPast|_ , Pos> => "would" | Predef.BIND ++ "'d" ;
<VPast|_ , Neg> => "wouldn't"
} ;
have_Aux : VForm -> Polarity -> Str = \vf,p -> case <vf,p> of {
<VInf, Pos> => "have" | Predef.BIND ++ "'ve" ; --- slightly overgenerating as used in infinitive
<VInf, Neg> => "haven't" ;
<VPres, Pos> => "has" | Predef.BIND ++ "'s" ;
<VPres, Neg> => "hasn't" ;
<VPast|_ , Pos> => "had" | Predef.BIND ++ "'d" ;
<VPast|_ , Neg> => "hadn't"
} ;
do_Aux : VForm -> Polarity -> Str = \vf,p -> case <vf,p> of {
<VInf, Pos> => "do" ;
<VInf, Neg> => "don't" ;
<VPres, Pos> => "does" ;
<VPres, Neg> => "doesn't" ;
<VPast|_ , Pos> => "did" ;
<VPast|_ , Neg> => "didn't"
} ;
not_Str : Polarity -> Str = \p -> case p of {Pos => [] ; Neg => "not"} ;
}