73 lines
1.6 KiB
Plaintext
73 lines
1.6 KiB
Plaintext
module IBAF-Start
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imports
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Funcons
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// Language "IBAFlang"
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lexical syntax // Language
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LEX-int = ( [0-9] )+
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LEX-id = ( [a-z] ) ( [a-z] | [0-9] )*
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syntax // Language
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context-free syntax // Language
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L-start.L-start--L-exp =
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L-exp
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L-exp.L-exp--L-int =
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L-int
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L-exp.L-exp--L-id =
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L-id
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L-exp.L-exp--R-lambda-L-id-DOT-L-exp =
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"lambda" L-id "." L-exp
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L-exp.L-exp--L-exp-LPAREN-L-exp-RPAREN =
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L-exp "(" L-exp ")"
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L-exp.L-exp--R-let-L-id-EQUALS-L-exp-R-in-L-exp =
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"let" L-id "=" L-exp "in" L-exp
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L-exp.L-exp--LPAREN-L-exp-RPAREN =
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"(" L-exp ")"
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L-int.LEX-int =
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LEX-int
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L-id.LEX-id =
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LEX-id
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context-free syntax // Semantics
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FCT.T-start =
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"start" "[:" L-start ":]"
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FCT.T-eval =
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"eval" "[:" L-exp ":]"
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FCT-Quoted.L-int = L-int
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FCT.T-int =
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"int" "[:" L-int ":]"
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FCT-Quoted.L-id = L-id
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FCT.T-id =
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"id" "[:" L-id ":]"
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context-free syntax // Desugaring
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variables // Meta-variables
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L-start = "(:START" [1-9]? ":)" {prefer}
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L-start? = "(:START" [1-9]? "?:)" {prefer}
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L-start* = "(:START" [1-9]? "*:)" {prefer}
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L-start+ = "(:START" [1-9]? "+:)" {prefer}
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L-exp = "(:E" [1-9]? ":)" {prefer}
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L-exp? = "(:E" [1-9]? "?:)" {prefer}
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L-exp* = "(:E" [1-9]? "*:)" {prefer}
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L-exp+ = "(:E" [1-9]? "+:)" {prefer}
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L-int = "(:N" [1-9]? ":)" {prefer}
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L-int? = "(:N" [1-9]? "?:)" {prefer}
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L-int* = "(:N" [1-9]? "*:)" {prefer}
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L-int+ = "(:N" [1-9]? "+:)" {prefer}
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L-id = "(:X" [1-9]? ":)" {prefer}
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L-id? = "(:X" [1-9]? "?:)" {prefer}
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L-id* = "(:X" [1-9]? "*:)" {prefer}
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L-id+ = "(:X" [1-9]? "+:)" {prefer}
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// SDF comments
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sorts // ASTs
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T-start
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