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52 lines
1.0 KiB
Plaintext
52 lines
1.0 KiB
Plaintext
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The standard way of building an application has the following modules.
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An abstract syntax:
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```
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abstract Music = {
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cat
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Kind,
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Property ;
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fun
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PropKind : Kind -> Property -> Kind ;
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Song : Kind ;
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American : Property ;
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}
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```
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A domain lexicon interface:
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```
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interface LexMusic = open Cat in {
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oper
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song_N : N ;
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american_A : A ;
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}
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```
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A functor on ``Syntax`` and the domain lexicon interface:
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```
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incomplete concrete MusicI of Music = open Syntax, MusicLex in {
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lincat
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Kind = CN ;
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Property = AP ;
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lin
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PropKind k p = mkCN p k ;
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Song = mkCN song_N ;
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American = mkAP american_A ;
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}
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```
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For each language, an instance of the domain lexicon:
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```
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instance LexMusicGer of LexMusic = CatGer ** open ParadigmsGer in {
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oper
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song_N = mkN "Lied" "Lieder" neuter ;
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american_A = mkA "amerikanisch" ;
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}
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```
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For each language, an instantiation of the functor:
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```
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--# -path=.:present:prelude
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concrete MusicGer of Music = MusicI with
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(Syntax = SyntaxGer),
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(LexMusic = LexMusicGer) ;
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```
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