417 lines
12 KiB
Scheme
417 lines
12 KiB
Scheme
(cond-expand
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(guile
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;;(use-modules ((system base lalr)))
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)
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(mes
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))
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(define c-parser
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(lalr-parser
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(lbrace rbrace lparen rparen lbracket rbracket semicolon colon dot comma
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=
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Identifier NumericLiteral
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break case continue goto label
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return switch
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if else
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(left: or && ! * / + -)
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(left: bool double float enum void int struct)
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(nonassoc: == !=)
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)
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(program
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(translation-unit *eoi*) : `(root ,@$1))
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(translation-unit
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(external-declaration) : `(,$1)
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(translation-unit external-declaration) : `(,@$1 ,@$2))
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(external-declaration
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(function-definition) : $1
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(declaration) : $1
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(error semicolon) : (begin (syntax-error "external declaration" @1 $1) '()))
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(function-definition
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(declarator compound-statement) : `(function ,$1 (signature int (formals)) ,$2)
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(declaration-specifiers declarator compound-statement) : `(function ,$2 (signature ,$1 (formals)) ,$3)
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(declaration-specifiers declarator declaration-list compound-statement) : `(function ,$2 (signature ,$1 ,$3) ,$4))
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(declaration
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(declaration-specifiers semicolon) : `(,$1)
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;;(declaration-specifiers init-declarator-list semicolon): `(,$1 ,$2)
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)
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(declaration-list
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(declaration) : `(formals $1)
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(declaration-list declaration) : `(,@$1 ,@(cdr $2)))
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(declaration-specifiers
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;;(storage-class-specifier) : `(,$1)
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(type-specifier) : `(,$1)
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;;(type-qualifier) : `($1)
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;;(storage-class-specifier declaration-specifiers) : (cons $1 $2)
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;;(type-specifier declaration-specifiers) : (cons $1 $2)
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;;(type-qualifier declaration-specifiers) : (cons $1 $2)
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)
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;; (storage_class_specifier
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;; (auto)
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;; (extern)
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;; (register)
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;; (static)
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;; (typedef))
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(type-specifier
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;; (char) : $1
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;; (double) : $1
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;; (void) : $1
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;; (float)
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(int) : 'int
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;; (long)
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;; (short)
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;; (unsigned)
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;; (struct-or-enum-specifier)
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;; (enum-specifier)
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;; (type-name)
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)
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;; (type-qualifier
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;; (const)
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;; (volatile))
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;; struct_or_union_specifier:
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;; struct_or_union_ident lbrace struct_declaration_list rbrace
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;; | struct_or_union_ident
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;; ;
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;; struct_or_union_ident: struct_or_union
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;; | struct_or_union Identifier
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;; ;
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;; struct_or_union: STRUCT { ; }
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;; | UNION { ; }
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;; ;
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;; struct_declaration_list: struct_declaration
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;; | struct_declaration_list struct_declaration
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;; ;
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;; init_declarator_list: init_declarator %prec comma
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;; | init_declarator_list comma init_declarator
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;; ;
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;; init_declarator: declarator
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;; | declarator EQ initializer
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;; | error { yyerror("init declarator error"); }
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;; ;
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;; struct_declaration: specifier_qualifier_list struct_declarator_list semicolon
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;; ;
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;; specifier_qualifier_list: type_specifier
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;; | type_qualifier
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;; | type_specifier specifier_qualifier_list
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;; | type_qualifier specifier_qualifier_list
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;; ;
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;; struct_declarator_list: struct_declarator
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;; | struct_declarator_list comma struct_declarator
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;; ;
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;; struct_declarator: declarator
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;; | COLON constant_expression { ; }
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;; | declarator COLON constant_expression
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;; ;
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;; enum_specifier: ENUM Identifier lbrace enumerator_list rbrace { ; }
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;; | ENUM lbrace enumerator_list rbrace { ; }
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;; | ENUM Identifier { ; }
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;; ;
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;; enumerator_list: enumerator
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;; | enumerator_list comma enumerator
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;; ;
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;; enumerator: Identifier
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;; | Identifier EQ constant_expression
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;; ;
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(declarator
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(direct-declarator) : $1
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;;(pointer direct-declarator)
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)
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(direct-declarator
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(Identifier) : $1
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;; (lparen declarator rparen)
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;; (direct-declarator lbracket rbracket)
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;; (direct-declarator lbracket constant-expression rbracket)
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;; (lbracket constant-expression rbracket)
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;; (direct-declarator lparen parameter-type-list rparen)
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(direct-declarator lparen rparen) : $1
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;; (direct-declarator lparen identifier-list rparen)
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)
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;; pointer: STAR { ; }
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;; | STAR pointer { ; }
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;; | STAR type_qualifier_list { ; }
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;; | STAR type_qualifier_list pointer { ; }
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;; ;
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;; type_qualifier_list: type_qualifier
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;; | type_qualifier_list type_qualifier
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;; ;
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;; parameter_type_list: parameter_list
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;; | parameter_list comma ELLIPSIS
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;; ;
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;; parameter_list: parameter_declaration
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;; | parameter_list comma parameter_declaration
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;; ;
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;; parameter_declaration:
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;; declaration_specifiers declarator
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;; | declaration_specifiers
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;; | declaration_specifiers abstract_declarator
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;; ;
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;; identifier_list: Identifier
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;; | identifier_list comma Identifier
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;; | error { yyerror("identifier list error"); }
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;; ;
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;; initializer: assignment_expression %prec comma
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;; | lbrace initializer_list rbrace { ; }
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;; | lbrace initializer_list comma rbrace { ; }
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;; ;
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;; initializer_list: initializer %prec comma
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;; | initializer_list comma initializer
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;; ;
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;; type_name: specifier_qualifier_list
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;; | specifier_qualifier_list abstract_declarator
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;; ;
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;; abstract_declarator: pointer
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;; | direct_abstract_declarator
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;; | pointer direct_abstract_declarator
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;; ;
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;; direct_abstract_declarator:
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;; lparen abstract_declarator rparen { ; }
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;; | lbrace rbrace { ; }
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;; | direct_abstract_declarator lbrace rbrace
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;; | lbrace constant_expression rbrace { ; }
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;; | direct_abstract_declarator lbrace constant_expression rbrace
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;; | lparen rparen { ; }
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;; | direct_abstract_declarator lparen rparen
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;; | lparen parameter_list rparen { ; }
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;; | direct_abstract_declarator lparen parameter_list rparen
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;; ;
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(statement
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;;(labeled-statement)
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(expression-statement) : $1
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(compound-statement) : $1
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;;(selection-statement)
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;;(iteration-statement)
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(jump-statement) : $1
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(semicolon) : '()
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(error semicolon) : (begin (syntax-error "statement error" @1 $1) '())
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(error rbrace) : (begin (syntax-error "statement error" @1 $1) '()))
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;; labeled_statement:
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;; Identifier COLON statement
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;; | CASE x COLON statement { ; }
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;; | DEFAULT COLON statement { ; }
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;; ;
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(expression-statement
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(x semicolon) : $1)
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(compound-statement
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(lbrace rbrace) : '(compound)
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(lbrace declaration-list rbrace) : `(compound ,@$2)
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(lbrace statement-list rbrace) : `(compound ,@$2)
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(lbrace declaration-list statement-list rbrace) : `(compound ,@$2 ,@$3))
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(statement-list
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(statement) : `(,$1)
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(statement-list statement) : `(,@$1 ,@$2))
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;; selection_statement:
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;; IF lparen x rparen statement { ; }
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;; | IF lparen x rparen statement ELSE statement { ; }
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;; | SWITCH lparen x rparen statement { ; }
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;; ;
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;; iteration_statement:
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;; WHILE lparen x rparen statement { ; }
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;; | DO statement WHILE lparen x rparen semicolon { ; }
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;; | FOR lparen forcntrl rparen statement { ; }
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;; ;
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;; forcntrl: semicolon semicolon { ; }
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;; | semicolon semicolon x { ; }
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;; | semicolon x semicolon { ; }
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;; | semicolon x semicolon x { ; }
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;; | x semicolon semicolon
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;; | x semicolon semicolon x
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;; | x semicolon x semicolon
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;; | x semicolon x semicolon x
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;; ;
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(jump-statement
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(goto Identifier semicolon) : `(goto ,$1)
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(continue semicolon) : '(continue)
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(break semicolon) : '(break)
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(return semicolon) : '(return)
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(return x semicolon) : `(return ,$2))
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(x
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(assignment-expression) : $1
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(x comma assignment-expression) : `($1 ,@$2))
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(assignment-expression
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(primary-expression) : $1 ;;(conditional-expression)
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(unary-expression assignment-operator assignment-expression) : `(,$2 ,$1 ,$3))
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(assignment-operator
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(=) : $1)
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;; EQ { ; }
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;; | PLUSEQ { ; }
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;; | MINUSEQ { ; }
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;; | MUEQ { ; }
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;; | DIVEQ { ; }
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;; | MODEQ { ; }
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;; | SLEQ { ; }
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;; | SREQ { ; }
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;; | ANEQ { ; }
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;; | OREQ { ; }
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;; | XOREQ { ; }
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;; ;
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;; conditional_expression: logical_or_expression
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;; | logical_or_expression IF_THEN x COLON conditional_expression
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;; ;
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;; constant_expression: conditional_expression
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;; ;
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;; logical_or_expression: logical_and_expression
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;; | logical_or_expression OROR logical_and_expression
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;; ;
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;; logical_and_expression: inclusive_or_expression
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;; | logical_and_expression ANDAND inclusive_or_expression
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;; ;
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;; inclusive_or_expression: exclusive_or_expression
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;; | inclusive_or_expression OR exclusive_or_expression
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;; ;
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;; exclusive_or_expression: and_expression
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;; | exclusive_or_expression XOR and_expression
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;; ;
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;; and_expression: equality_expression
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;; | and_expression AND equality_expression
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;; ;
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;; equality_expression: relational_expression
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;; | equality_expression EQEQ relational_expression
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;; | equality_expression NOTEQ relational_expression
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;; ;
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;; relational_expression: shift_expression
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;; | relational_expression LT shift_expression
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;; | relational_expression LE shift_expression
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;; | relational_expression GT shift_expression
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;; | relational_expression GE shift_expression
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;; ;
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;; shift_expression: additive_expression
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;; | shift_expression LTLT additive_expression
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;; | shift_expression GTGT additive_expression
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;; ;
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;; additive_expression: multiplicative_expression
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;; | additive_expression PLUS multiplicative_expression
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;; | additive_expression MINUS multiplicative_expression
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;; ;
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;; multiplicative_expression: cast_expression
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;; | multiplicative_expression STAR cast_expression
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;; | multiplicative_expression DIV cast_expression
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;; | multiplicative_expression MOD cast_expression
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;; ;
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;; cast_expression: unary_expression
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;; | lparen type_name rparen cast_expression { ; }
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;; ;
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(unary-expression
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(primary-expression) : $1)
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;; unary_expression: postfix_expression
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;; | INCOP unary_expression { ; }
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;; | DECOP unary_expression { ; }
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;; | SIZEOF unary_expression { ; }
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;; | SIZEOF lparen type_name rparen %prec SIZEOF { ; }
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;; | STAR cast_expression { ; }
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;; | AND cast_expression { ; }
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;; | MINUS cast_expression { ; }
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;; | PLUS cast_expression { ; }
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;; | NEG cast_expression { ; }
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;; | NOT cast_expression { ; }
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;; ;
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;; postfix_expression: primary_expression
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;; | postfix_expression lbracket x rbracket
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;; | postfix_expression lparen rparen
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;; | postfix_expression lparen argument_expression_list rparen
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;; | postfix_expression FOLLOW Identifier
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;; | postfix_expression DOT Identifier
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;; | postfix_expression INCOP
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;; | postfix_expression DECOP
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;; ;
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(primary-expression
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(Identifier): $1
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(NumericLiteral) : $1)
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;; primary_expression: Identifier
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;; INT_LITERAL
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;; CHAR_LITERAL
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;; FLOAT_LITERAL
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;; STRING_LITERAL
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;; lparen x rparen
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;;
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;; argument_expression_list: assignment_expression
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;; | argument_expression_list comma assignment_expression
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;; ;
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))
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(define mescc
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(let ((errorp
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(lambda args
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(for-each display args)
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(newline))))
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(lambda ()
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(c-parser (c-lexer errorp) errorp))))
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(display "program: " 2)
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(display (mescc) 2)
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(newline 2)
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(define elf-header '(#x7f #E #L #F #x01))
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(define elf-header '(#x7f #x45 #x4c #x46 #x01))
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(map write-char elf-header)
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(newline)
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