編譯原理-1-C語言的文法
c語言的文法產生式：
programà
external_declaration
| program external_declaration
external_declarationà
function_definition
| declaration
function_definitionà type_specifier declarator compound_statement
type_specifierà
VOID
| CHAR
| INT
| FLOAT
declarator
pointer direct_declarator
| direct_declarator
Pointerà
'*'
| '*' pointer
direct_declarator
IDENTIFIER
|direct_declarator’[‘ ‘]’
|direct_declarator ’[’ constant_expression ’]’
| IDENTIFIER '(' parameter_list ')'
| IDENTIFIER '(' ')'
|direct_declarator ‘,’ identifier_list
identifier_list
: IDENTIFIER
| identifier_list ',' IDENTIFIER
constant_expressionà
conditional_expression
parameter_listà
parameter_declaration
| parameter_list ',' parameter_declaration
parameter_declaration à
declaration_specifiers IDENTIFIER
compound_statementà
'{' '}'
| '{' statement_list '}'
| '{' declaration_list statement_list '}'
declaration_listà
declaration
| declaration_list declaration
Declarationà
init_declarator
| init_declarator_list ',' init_declarator
init_declaratorà
declarator
| declarator '=' initializer
Initializerà
assignment_expression
| '{' initializer_list '}'
| '{' initializer_list ',' '}'
initializer_listà
initializer
| initializer_list ',' initializer
statement_listà
statement
| statement_list statement
Statementà
| compound_statement
| expression_statement
| selection_statement
| iteration_statement
| jump_statement
expression_statementà
';'
| expression ';'
selection_statement
: IF '(' expression ')' statement
| IF '(' expression ')' statement ELSE statement
iteration_statementà
WHILE '(' expression ')' statement
| FOR '(' expression_statement expression_statement ')' statement
| FOR '(' expression_statement expression_statement expression ')' statement
jump_statement
| CONTINUE ';'
| BREAK ';'
| RETURN ';'
| RETURN expression ';'
expression
: assignment_expression
| expression ',' assignment_expression
assignment_expressionà
conditional_expression
| unary_expression assignment_operator assignment_expression
conditional_expressionà
logical_or_expression
| logical_or_expression '?' expression ':' conditional_expression
logical_or_expressionà
logical_and_expression
| logical_or_expression OR_OP logical_and_expression
logical_and_expression
: inclusive_or_expression
| logical_and_expression AND_OP inclusive_or_expression
inclusive_or_expressionà
exclusive_or_expression
| inclusive_or_expression '|' exclusive_or_expression
exclusive_or_expression
: and_expression
| exclusive_or_expression '^' and_expression
and_expression
: equality_expression
| and_expression '&' equality_expression
equality_expression
: relational_expression
| equality_expression EQ_OP relational_expression
| equality_expression NE_OP relational_expression
relational_expression
: shift_expression
| relational_expression '<' shift_expression
| relational_expression '>' shift_expression
| relational_expression LE_OP shift_expression
| relational_expression GE_OP shift_expression
shift_expression
: additive_expression
| shift_expression LEFT_OP additive_expression
| shift_expression RIGHT_OP additive_expression
additive_expression
: multiplicative_expression
| additive_expression '+' multiplicative_expression
| additive_expression '-' multiplicative_expression
multiplicative_expression
: cast_expression
| multiplicative_expression '*' cast_expression
| multiplicative_expression '/' cast_expression
| multiplicative_expression '%' cast_expression
cast_expression
: unary_expression
| '(' type_name ')' cast_expression
unary_expression
: postfix_expression
| INC_OP unary_expression
| DEC_OP unary_expression
| unary_operator cast_expression
| SIZEOF unary_expression
| SIZEOF '(' type_name ')'
postfix_expressionà
: primary_expression
| postfix_expression '[' expression ']'
| postfix_expression '(' ')'
| postfix_expression '(' argument_expression_list ')'
| postfix_expression '.' IDENTIFIER
| postfix_expression PTR_OP IDENTIFIER
| postfix_expression INC_OP
| postfix_expression DEC_OP
primary_expressionà
IDENTIFIER
| CONSTANT
| STRING_LITERAL
| '(' expression ')'
argument_expression_list
: assignment_expression
| argument_expression_list ',' assignment_expression
unary_operator
: '&'
| '*'
| '+'
| '-'
| '~'
| '!'
assignment_operatorà
'='
| MUL_ASSIGN
| DIV_ASSIGN
| MOD_ASSIGN
| ADD_ASSIGN
| SUB_ASSIGN
| LEFT_ASSIGN
| RIGHT_ASSIGN
| AND_ASSIGN
| XOR_ASSIGN
| OR_ASSIGN
storage_class_specifierà
TYPEDEF
| EXTERN
| STATIC
| AUTO
| REGISTER
struct_or_union_specifier
: struct_or_union IDENTIFIER '{' struct_declaration_list '}'
| struct_or_union '{' struct_declaration_list '}'
| struct_or_union IDENTIFIER
struct_or_union
: STRUCT
| UNION
struct_declaration_list
: struct_declaration
| struct_declaration_list struct_declaration
struct_declaration
: specifier_qualifier_list struct_declarator_list ';'
specifier_qualifier_listà
type_specifier specifier_qualifier_list
| type_specifier
| type_qualifier specifier_qualifier_list
| type_qualifier
struct_declarator_listà
struct_declarator
| struct_declarator_list ',' struct_declarator
struct_declaratorà
: declarator
| ':' constant_expression
| declarator ':' constant_expression
enum_specifierà
ENUM '{' enumerator_list '}'
| ENUM IDENTIFIER '{' enumerator_list '}'
| ENUM IDENTIFIER
enumerator_listà
enumerator
| enumerator_list ',' enumerator
Enumeratorà
IDENTIFIER
| IDENTIFIER '=' constant_expression
type_qualifierà
CONST
| VOLATILE
type_qualifier_listà
type_qualifier
| type_qualifier_list type_qualifier
parameter_type_listà
parameter_list
| parameter_list ',' ELLIPSIS
parameter_listà
: parameter_declaration
| parameter_list ',' parameter_declaration
type_nameà
specifier_qualifier_list
| specifier_qualifier_list abstract_declarator
abstract_declaratorà
pointer
| direct_abstract_declarator
| pointer direct_abstract_declarator
direct_abstract_declaratorà
'(' abstract_declarator ')'
| '[' ']'
| '[' constant_expression ']'
| direct_abstract_declarator '[' ']'
| direct_abstract_declarator '[' constant_expression ']'
| '(' ')'
| '(' parameter_type_list ')'
| direct_abstract_declarator '(' ')'
| direct_abstract_declarator '(' parameter_type_list ')'
labeled_statementà
IDENTIFIER ':' statement
| CASE constant_expression ':' statement
| DEFAULT ':' statement
作者：rill_zhen
