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51 lines
1.8 KiB
CFEngine3
51 lines
1.8 KiB
CFEngine3
Grm. Grammar ::= Header ";" Abstract ";" [Concrete] ;
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Hdr. Header ::= "grammar" CId "(" [CId] ")" ;
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Abs. Abstract ::= "abstract" "{" [AbsDef] "}" ;
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Cnc. Concrete ::= "concrete" CId "{" [CncDef] "}" ;
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Fun. AbsDef ::= CId ":" Type "=" Exp ;
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--AFl. AbsDef ::= "%" CId "=" String ; -- flag
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Lin. CncDef ::= CId "=" Term ;
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--CFl. CncDef ::= "%" CId "=" String ; -- flag
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Typ. Type ::= [CId] "->" CId ;
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Tr. Exp ::= "(" Atom [Exp] ")" ;
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AC. Atom ::= CId ;
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AS. Atom ::= String ;
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AI. Atom ::= Integer ;
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AF. Atom ::= Double ;
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AM. Atom ::= "?" ;
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trA. Exp ::= Atom ;
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define trA a = Tr a [] ;
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R. Term ::= "[" [Term] "]" ; -- record/table
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P. Term ::= "(" Term "!" Term ")" ; -- projection/selection
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S. Term ::= "(" [Term] ")" ; -- sequence with ++
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K. Term ::= Tokn ; -- token
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V. Term ::= "$" Integer ; -- argument
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C. Term ::= Integer ; -- parameter value/label
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F. Term ::= CId ; -- global constant
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FV. Term ::= "[|" [Term] "|]" ; -- free variation
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W. Term ::= "(" String "+" Term ")" ; -- prefix + suffix table
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RP. Term ::= "(" Term "@" Term ")"; -- record parameter alias
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TM. Term ::= "?" ; -- lin of metavariable
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L. Term ::= "(" CId "->" Term ")" ; -- lambda abstracted table
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BV. Term ::= "#" CId ; -- lambda-bound variable
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KS. Tokn ::= String ;
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KP. Tokn ::= "[" "pre" [String] "[" [Variant] "]" "]" ;
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Var. Variant ::= [String] "/" [String] ;
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terminator Concrete ";" ;
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terminator AbsDef ";" ;
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terminator CncDef ";" ;
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separator CId "," ;
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separator Term "," ;
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terminator Exp "" ;
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terminator String "" ;
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separator Variant "," ;
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token CId (('_' | letter) (letter | digit | '\'' | '_')*) ;
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