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200 lines
7.7 KiB
Plaintext
200 lines
7.7 KiB
Plaintext
--!
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--2 Rules
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--
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-- This set of rules is minimal, in the sense of defining the simplest combinations
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-- of categories and not having redundant rules.
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-- When the resource grammar is used as a library, it will often be useful to
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-- access it through an intermediate library that defines more rules as
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-- 'macros' for combinations of the ones below.
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abstract Rules = Categories ** {
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--!
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--3 Nouns and noun phrases
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--
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fun
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UseN : N -> CN ; -- "car"
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UsePN : PN -> NP ; -- "John"
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SymbPN : String -> PN ; -- "x"
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SymbCN : CN -> String -> CN ; -- "number x"
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IntCN : CN -> Int -> CN ; -- "number 53"
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IndefOneNP : CN -> NP ; -- "a car", "cars"
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IndefNumNP : Num -> CN -> NP ; -- "houses", "86 houses"
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DefOneNP : CN -> NP ; -- "the car"
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DefNumNP : Num -> CN -> NP ; -- "the cars", "the 86 cars"
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DetNP : Det -> CN -> NP ; -- "every car"
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MassNP : CN -> NP ; -- "wine"
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AppN2 : N2 -> NP -> CN ; -- "successor of zero"
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AppN3 : N3 -> NP -> N2 ; -- "flight from Paris"
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UseN2 : N2 -> CN ; -- "successor"
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ModAdj : AP -> CN -> CN ; -- "red car"
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CNthatS : CN -> S -> CN ; -- "idea that the Earth is flat"
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ModGenOne : NP -> CN -> NP ; -- "John's car"
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ModGenNum : Num -> NP -> CN -> NP ; -- "John's cars", "John's 86 cars"
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UseInt : Int -> Num ; -- "32" --- assumes i > 1
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NoNum : Num ; -- no numeral modifier
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--!
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--3 Adjectives and adjectival phrases
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--
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UseA1 : A1 -> AP ; -- "red"
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ComplA2 : A2 -> NP -> AP ; -- "divisible by two"
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PositADeg : ADeg -> AP ; -- "old"
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ComparADeg : ADeg -> NP -> AP ; -- "older than John"
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SuperlNP : ADeg -> CN -> NP ; -- "the oldest man"
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---- AdjPart : V -> A1 ; -- "forgotten"
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--!
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--3 Verbs and verb phrases
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--
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-- The principal way of forming sentences ($S$) is by combining a noun phrase
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-- with a verb phrase (the $PredVP$ rule below). In addition to this, verb
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-- phrases have uses in relative clauses and questions. Verb phrases already
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-- have (or have not) a negation, but they are formed from verbal groups
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-- ($VG$), which have both positive and negative forms.
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PredV : V -> VG ; -- "walk", "doesn't walk"
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PredPassV : V -> VG ; -- "is seen", "is not seen"
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PredV2 : V2 -> NP -> VG ; -- "sees John", "doesn't see John"
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PredV3 : V3 -> NP -> NP -> VG ; -- "prefers wine to beer"
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PredVS : VS -> S -> VG ; -- "says that I run", "doesn't say..."
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PredVV : VV -> VG -> VG ; -- "can run", "can't run", "tries to run"
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PredNP : NP -> VG ; -- "is John", "is not John"
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PredPP : PP -> VG ; -- "is in France", "is not in France"
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PredAP : AP -> VG ; -- "is old", "isn't old"
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PredSuperl : ADeg -> VG ; -- "is the oldest"
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PredCN : CN -> VG ; -- "is a man", "isn't a man"
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VTrans : V2 -> V ; -- "loves"
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PosVG,NegVG : VG -> VP ; --
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PredVG : NP -> VG -> Cl ; -- preserves all pol/tense variation
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--!
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--3 Adverbs
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--
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-- Here is how complex adverbs can be formed and used.
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AdjAdv : AP -> Adv ; -- "freely", "more consciously than you"
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AdvPP : PP -> Adv ; -- "in London", "after the war"
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PrepNP : Prep -> NP -> PP ; -- "in London", "after the war"
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AdvVP : VP -> Adv -> VP ; -- "always walks", "walks in the park"
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AdvCN : CN -> PP -> CN ; -- "house in London"
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AdvAP : AdA -> AP -> AP ; -- "very good"
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--!
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--3 Sentences and relative clauses
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--
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PredVP : NP -> VP -> S ; -- "John walks"
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PosSlashV2,NegSlashV2 : NP -> V2 -> Slash ; -- "John sees", "John doesn't see"
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OneVP : VP -> S ; -- "one walks"
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ThereNP : NP -> S ; -- "there is a bar","there are 86 bars"
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IdRP : RP ; -- "which"
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FunRP : N2 -> RP -> RP ; -- "the successor of which"
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RelVP : RP -> VP -> RC ; -- "who walks", "who doesn't walk"
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RelSlash : RP -> Slash -> RC ; -- "that I wait for"/"for which I wait"
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ModRC : CN -> RC -> CN ; -- "man who walks"
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RelSuch : S -> RC ; -- "such that it is even"
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--!
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--3 Questions and imperatives
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--
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WhoOne, WhoMany : IP ; -- "who (is)", "who (are)"
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WhatOne, WhatMany : IP ; -- "what (is)", "what (are)"
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FunIP : N2 -> IP -> IP ; -- "the mother of whom"
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NounIPOne, NounIPMany : CN -> IP ; -- "which car", "which cars"
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---- NounIPHowMany : CN -> IP ; -- "how many cars"
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QuestVP : NP -> VP -> Qu ; -- "does John walk"; "doesn't John walk"
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IntVP : IP -> VP -> Qu ; -- "who walks"
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IntSlash : IP -> Slash -> Qu ; -- "whom does John see"
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QuestAdv : IAdv -> NP -> VP -> Qu ; -- "why do you walk"
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IsThereNP : NP -> Qu ; -- "is there a bar", "are there (86) bars"
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ImperVP : VP -> Imp ; -- "be a man"
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IndicPhrase : S -> Phr ; -- "I walk."
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QuestPhrase : Qu -> Phr ; -- "Do I walk?"
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ImperOne, ImperMany : Imp -> Phr ; -- "Be a man!", "Be men!"
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PrepS : PP -> AdS ; -- "in Sweden, (there are bears)"
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AdvS : AdS -> S -> Phr ; -- "Therefore, 2 is prime."
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--!
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--3 Coordination
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--
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-- We consider "n"-ary coordination, with "n" > 1. To this end, we have introduced
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-- a *list category* $ListX$ for each category $X$ whose expressions we want to
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-- conjoin. Each list category has two constructors, the base case being $TwoX$.
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-- We have not defined coordination of all possible categories here,
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-- since it can be tricky in many languages. For instance, $VP$ coordination
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-- is linguistically problematic in German because $VP$ is a discontinuous
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-- category.
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ConjS : Conj -> ListS -> S ; -- "John walks and Mary runs"
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ConjAP : Conj -> ListAP -> AP ; -- "even and prime"
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ConjNP : Conj -> ListNP -> NP ; -- "John or Mary"
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ConjDS : ConjD -> ListS -> S ; -- "either John walks or Mary runs"
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ConjDAP : ConjD -> ListAP -> AP ; -- "both even and prime"
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ConjDNP : ConjD -> ListNP -> NP ; -- "either John or Mary"
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TwoS : S -> S -> ListS ;
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ConsS : ListS -> S -> ListS ;
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TwoAP : AP -> AP -> ListAP ;
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ConsAP : ListAP -> AP -> ListAP ;
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TwoNP : NP -> NP -> ListNP ;
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ConsNP : ListNP -> NP -> ListNP ;
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--!
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--3 Subordination
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--
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-- Subjunctions are different from conjunctions, but form
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-- a uniform category among themselves.
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SubjS : Subj -> S -> S -> S ; -- "if 2 is odd, 3 is even"
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SubjImper : Subj -> S -> Imp -> Imp ; -- "if it is hot, use a glove!"
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SubjQu : Subj -> S -> Qu -> Qu ; -- "if you are new, who are you?"
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SubjVP : VP -> Subj -> S -> VP ; -- "(a man who) sings when he runs"
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--!
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--2 One-word utterances
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--
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-- These are, more generally, *one-phrase utterances*. The list below
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-- is very incomplete.
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PhrNP : NP -> Phr ; -- "Some man.", "John."
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PhrOneCN, PhrManyCN : CN -> Phr ; -- "A car.", "Cars."
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PhrIP : IAdv -> Phr ; -- "Who?"
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PhrIAdv : IAdv -> Phr ; -- "Why?"
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--!
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--2 Text formation
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--
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-- A text is a sequence of phrases. It is defined like a non-empty list.
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OnePhr : Phr -> Text ;
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ConsPhr : Phr -> Text -> Text ;
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} ;
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