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76 lines
2.2 KiB
Plaintext
76 lines
2.2 KiB
Plaintext
resource MicroResEng = open Prelude in {
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param
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Number = Sg | Pl ;
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Case = Nom | Acc ;
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Agreement = Agr Number ; ---s Person to be added
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-- all forms of normal Eng verbs, although not yet used in MiniGrammar
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VForm = Inf | PresSg3 | Past | PastPart | PresPart ;
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oper
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Noun : Type = {s : Number => Str} ;
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mkNoun : Str -> Str -> Noun = \sg,pl -> {
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s = table {Sg => sg ; Pl => pl}
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} ;
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regNoun : Str -> Noun = \sg -> mkNoun sg (sg + "s") ;
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-- smart paradigm
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smartNoun : Str -> Noun = \sg -> case sg of {
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_ + ("ay"|"ey"|"oy"|"uy") => regNoun sg ;
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x + "y" => mkNoun sg (x + "ies") ;
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_ + ("ch"|"sh"|"s"|"o") => mkNoun sg (sg + "es") ;
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_ => regNoun sg
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} ;
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Adjective : Type = {s : Str} ;
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Verb : Type = {s : VForm => Str} ;
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mkVerb : (inf,pres,past,pastpart,prespart : Str) -> Verb
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= \inf,pres,past,pastpart,prespart -> {
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s = table {
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Inf => inf ;
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PresSg3 => pres ;
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Past => past ;
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PastPart => pastpart ;
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PresPart => prespart
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}
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} ;
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regVerb : (inf : Str) -> Verb = \inf ->
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mkVerb inf (inf + "s") (inf + "ed") (inf + "ed") (inf + "ing") ;
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-- regular verbs with predictable variations
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smartVerb : Str -> Verb = \inf -> case inf of {
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pl + ("a"|"e"|"i"|"o"|"u") + "y" => regVerb inf ;
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cr + "y" => mkVerb inf (cr + "ies") (cr + "ied") (cr + "ied") (inf + "ing") ;
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lov + "e" => mkVerb inf (inf + "s") (lov + "ed") (lov + "ed") (lov + "ing") ;
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kis + ("s"|"sh"|"x"|"o") => mkVerb inf (inf + "es") (inf + "ed") (inf + "ed") (inf + "ing") ;
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_ => regVerb inf
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} ;
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-- normal irregular verbs e.g. drink,drank,drunk
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irregVerb : (inf,past,pastpart : Str) -> Verb =
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\inf,past,pastpart ->
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let verb = smartVerb inf
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in mkVerb inf (verb.s ! PresSg3) past pastpart (verb.s ! PresPart) ;
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-- two-place verb with "case" as preposition; for transitive verbs, c=[]
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Verb2 : Type = Verb ** {c : Str} ;
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be_Verb : Verb = mkVerb "are" "is" "was" "been" "being" ; ---s to be generalized
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---s a very simplified verb agreement function for Micro
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agr2vform : Agreement -> VForm = \a -> case a of {
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Agr Sg => PresSg3 ;
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Agr Pl => Inf
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} ;
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}
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