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20 lines
651 B
BNF
20 lines
651 B
BNF
items -> item* ;
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item -> align | type_decl | struct | messages | constant;
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type_decl -> "type" IDENT "=" type ";"
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align -> "align" "(" number ")" ";"
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struct -> "struct" IDENT "{" field ("," field)* ","? "}" ;
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messages -> "messages" IDENT "{" message* "}" ;
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constant -> "const" IDENT "=" number ";" ;
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field -> IDENT ":" type ;
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number -> NUMBER | IDENT ;
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message -> IDENT "{" field ("," field)* ","? "}" ;
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type -> IDENT | heap_array | field_array ;
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heap_array -> type "&" "[" "]" | type "[" "]"
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| type "&" "[" max_size | fixed_size "]" ;
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field_array -> type "[" max_size | fixed_size "]" ;
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max_size -> "^" number ;
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fixed_size -> number ;
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