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gf-core/lib/src/telugu/MorphoTel.gf
2009-06-22 15:39:08 +00:00

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----# -path=.:../../prelude
----
------1 A Simple Teldi Resource Morphology
------
------ Aarne Ranta 2002 -- 2005
------
------ This resource morphology contains definitions needed in the resource
------ syntax. To build a lexicon, it is better to use $ParadigmsTel$, which
------ gives a higher-level access to this module.
----
--resource MorphoTel = ResTel ** open Prelude, (Predef=Predef) in {
----
---- flags optimize=all ;
----
------2 Phonology
------
------ To regulate the use of endings for both nouns, adjectives, and verbs:
----
----oper
---- y2ie : Str -> Str -> Str = \fly,s ->
---- let y = last (init fly) in
---- case y of {
---- "a" => fly + s ;
---- "e" => fly + s ;
---- "o" => fly + s ;
---- "u" => fly + s ;
---- _ => init fly + "ie" + s
---- } ;
----
----
------2 Nouns
------
------ For conciseness and abstraction, we define a worst-case macro for
------ noun inflection. It is used for defining special case that
------ only need one string as argument.
----
----oper
---- CommonNoun : Type = {s : Number => Case => Str} ;
----
---- nounGen : Str -> CommonNoun = \dog -> case last dog of {
---- "y" => nounY "dog" ;
---- "s" => nounS (init "dog") ;
---- _ => nounReg "dog"
---- } ;
----
------ These are auxiliaries to $nounGen$.
----
---- nounReg : Str -> CommonNoun = \dog ->
---- mkNoun dog (dog + "s") (dog + "'s") (dog + "s'");
---- nounS : Str -> CommonNoun = \kiss ->
---- mkNoun kiss (kiss + "es") (kiss + "'s") (kiss + "es'") ;
---- nounY : Str -> CommonNoun = \fl ->
---- mkNoun (fl + "y") (fl + "ies") (fl + "y's") (fl + "ies'") ;
----
----
------3 Proper names
------
------ Regular proper names are inflected with "'s" in the genitive.
----
---- nameReg : Str -> Gender -> {s : Case => Str} = \john,g ->
---- {s = table {Gen => john + "'s" ; _ => john} ; g = g} ;
----
------2 Determiners
----
---- mkDeterminer : Number -> Str -> {s : Str ; n : Number} = \n,s ->
---- {s = s ; n = n} ;
----
------2 Pronouns
------
------ Here we define personal pronouns.
------
------ We record the form "mine" and the gender for later use.
----
---- Pronoun : Type =
---- {s : Case => Str ; a : Agr} ;
----
---- mkPronoun : (_,_,_,_ : Str) -> Number -> Person -> Gender -> Pronoun =
---- \I,me,my,mine,n,p,g ->
---- {s = table {Nom => I ; Acc => me ; Gen => my} ;
---- a = toAgr n p g
---- } ;
----
---- human : Gender = Masc ; --- doesn't matter
----
---- pronI = mkPronoun "I" "me" "my" "mine" Sg P1 human ;
---- pronYouSg = mkPronoun "you" "you" "your" "yours" Sg P2 human ; -- verb agr OK
---- pronHe = mkPronoun "he" "him" "his" "his" Sg P3 Masc ;
---- pronShe = mkPronoun "she" "her" "her" "hers" Sg P3 Fem ;
---- pronIt = mkPronoun "it" "it" "its" "it" Sg P3 Neutr ;
----
---- pronWe = mkPronoun "we" "us" "our" "ours" Pl P1 human ;
---- pronYouPl = mkPronoun "you" "you" "your" "yours" Pl P2 human ;
---- pronThey = mkPronoun "they" "them" "their" "theirs" Pl P3 human ; ---
----
----
------2 Adjectives
------
------ To form the adjectival and the adverbial forms, two strings are needed
------ in the worst case. (First without degrees.)
----
---- Adjective = {s : AForm => Str} ;
----
------ However, most adjectives can be inflected using the final character.
------ N.B. this is not correct for "shy", but $mkAdjective$ has to be used.
----
---- regAdjective : Str -> Adjective = \free ->
---- let
---- e = last free ;
---- fre = init free ;
---- freely = case e of {
---- "y" => fre + "ily" ;
---- _ => free + "ly"
---- } ;
---- fre = case e of {
---- "e" => fre ;
---- "y" => fre + "i" ;
---- _ => free
---- }
---- in
---- mkAdjective free (fre + "er") (fre + "est") freely ;
----
------ Many adjectives are 'inflected' by adding a comparison word.
----
---- adjDegrLong : Str -> Adjective = \ridiculous ->
---- mkAdjective
---- ridiculous
---- ("more" ++ ridiculous)
---- ("most" ++ ridiculous)
---- ((regAdjective ridiculous).s ! AAdv) ;
----
----
------3 Verbs
------
------ The worst case needs five forms. (The verb "be" is treated separately.)
----
---- mkVerb4 : (_,_,_,_: Str) -> Verb = \go,goes,went,gone ->
---- let going = case last go of {
---- "e" => init go + "ing" ;
---- _ => go + "ing"
---- }
---- in
---- mkVerb go goes went gone going ;
----
------ This is what we use to derive the irregular forms in almost all cases
----
---- mkVerbIrreg : (_,_,_ : Str) -> Verb = \bite,bit,bitten ->
---- let bites = case last bite of {
---- "y" => y2ie bite "s" ;
---- "s" => init bite + "es" ;
---- _ => bite + "s"
---- }
---- in mkVerb4 bite bites bit bitten ;
----
------ This is used to derive regular forms.
----
---- mkVerbReg : Str -> Verb = \soak ->
---- let
---- soaks = case last soak of {
---- "y" => y2ie soak "s" ;
---- "s" => init soak + "es" ;
---- _ => soak + "s"
---- } ;
---- soaked = case last soak of {
---- "e" => init soak + "s" ;
---- _ => soak + "ed"
---- }
---- in
---- mkVerb4 soak soaks soaked soaked ;
----
---- verbGen : Str -> Verb = \kill -> case last kill of {
---- "y" => verbP3y (init kill) ;
---- "e" => verbP3e (init kill) ;
---- "s" => verbP3s (init kill) ;
---- _ => regVerbP3 kill
---- } ;
----
------ These are just auxiliary to $verbGen$.
----
---- regVerbP3 : Str -> Verb = \walk ->
---- mkVerbIrreg walk (walk + "ed") (walk + "ed") ;
---- verbP3s : Str -> Verb = \kiss ->
---- mkVerb4 kiss (kiss + "es") (kiss + "ed") (kiss + "ed") ;
---- verbP3e : Str -> Verb = \love ->
---- mkVerb4 love (love + "s") (love + "d") (love + "d") ;
---- verbP3y : Str -> Verb = \cr ->
---- mkVerb4 (cr + "y") (cr + "ies") (cr + "ied") (cr + "ied") ;
----
------- The particle always appears right after the verb.
----
---- verbPart : Verb -> Str -> Verb = \v,p ->
---- {s = \\f => v.s ! f ++ p ; isRefl = v.isRefl} ;
----
---- verbNoPart : Verb -> Verb = \v -> verbPart v [] ;
----
----
--}