2020-03-01 19:05:28 +01:00
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#lang typed/racket
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;;; dds/rs
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;;; Definitions for working with reaction systems.
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(provide
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;; Structures
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reaction
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2020-03-01 19:07:16 +01:00
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;; Type names
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Species
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2020-03-01 19:05:28 +01:00
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;; Functions
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enabled?)
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;;; =================
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;;; Basic definitions
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;;; =================
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;;; A species is a symbol.
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(define-type Species Symbol)
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;;; A reaction is a triple of sets, giving the reactants, the
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;;; inhibitors, and the products, respectively.
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(struct reaction ([reactants : (Setof Symbol)]
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[inhibitors : (Setof Symbol)]
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[products : (Setof Symbol)]))
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;;; A reaction is enabled on a set if all of its reactants are in the
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;;; set and none of its inhibitors are.
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(: enabled? (-> reaction (Setof Symbol) Boolean))
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(define/match (enabled? r s)
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[((reaction r i p) s)
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(and (subset? r s) (set-empty? (set-intersect i s)))])
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