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/* This is a lemon grammar for the C language */
%name C
%token_prefix TK_
/* this defines a symbol for the lexer */
%nonassoc PRAGMA.
/* the precedence of IF/ELSE solves the dangling else conflict */
%nonassoc IF.
%nonassoc ELSE.
start ::= translation_unit.
primary_expression ::= IDENTIFIER.
primary_expression ::= CONSTANT.
primary_expression ::= STRING_LITERAL.
primary_expression ::= LPAREN expression RPAREN.
primary_expression ::= LPAREN error RPAREN.
postfix_expression ::= primary_expression.
postfix_expression ::= postfix_expression LSQUARE expression RSQUARE.
postfix_expression ::= postfix_expression LPAREN RPAREN.
postfix_expression ::= postfix_expression LPAREN argument_expression_list RPAREN.
postfix_expression ::= postfix_expression PERIOD IDENTIFIER.
postfix_expression ::= postfix_expression PTR_OP IDENTIFIER.
postfix_expression ::= postfix_expression INC_OP.
postfix_expression ::= postfix_expression DEC_OP.
argument_expression_list ::= assignment_expression.
argument_expression_list ::= argument_expression_list COMMA assignment_expression.
unary_expression ::= postfix_expression.
unary_expression ::= INC_OP unary_expression.
unary_expression ::= DEC_OP unary_expression.
unary_expression ::= unary_operator cast_expression.
unary_expression ::= SIZEOF unary_expression.
unary_expression ::= SIZEOF LPAREN type_name RPAREN.
unary_operator ::= AMP.
unary_operator ::= STAR.
unary_operator ::= PLUS.
unary_operator ::= MINUS.
unary_operator ::= TILDE.
unary_operator ::= EXCLAM.
cast_expression ::= unary_expression.
cast_expression ::= LPAREN type_name RPAREN cast_expression.
multiplicative_expression ::= cast_expression.
multiplicative_expression ::= multiplicative_expression STAR cast_expression.
multiplicative_expression ::= multiplicative_expression SLASH cast_expression.
multiplicative_expression ::= multiplicative_expression PERCENT cast_expression.
additive_expression ::= multiplicative_expression.
additive_expression ::= additive_expression PLUS multiplicative_expression.
additive_expression ::= additive_expression MINUS multiplicative_expression.
shift_expression ::= additive_expression.
shift_expression ::= shift_expression LEFT_OP additive_expression.
shift_expression ::= shift_expression RIGHT_OP additive_expression.
relational_expression ::= shift_expression.
relational_expression ::= relational_expression LANGLE shift_expression.
relational_expression ::= relational_expression RANGLE shift_expression.
relational_expression ::= relational_expression LE_OP shift_expression.
relational_expression ::= relational_expression GE_OP shift_expression.
equality_expression ::= relational_expression.
equality_expression ::= equality_expression EQ_OP relational_expression.
equality_expression ::= equality_expression NE_OP relational_expression.
and_expression ::= equality_expression.
and_expression ::= and_expression AMP equality_expression.
exclusive_or_expression ::= and_expression.
exclusive_or_expression ::= exclusive_or_expression CARET and_expression.
inclusive_or_expression ::= exclusive_or_expression.
inclusive_or_expression ::= inclusive_or_expression PIPE exclusive_or_expression.
logical_and_expression ::= inclusive_or_expression.
logical_and_expression ::= logical_and_expression AND_OP inclusive_or_expression.
logical_or_expression ::= logical_and_expression.
logical_or_expression ::= logical_or_expression OR_OP logical_and_expression.
conditional_expression ::= logical_or_expression.
conditional_expression ::= logical_or_expression QUESTION expression COLON conditional_expression.
assignment_expression ::= conditional_expression.
assignment_expression ::= unary_expression assignment_operator assignment_expression.
assignment_operator ::= EQUALS.
assignment_operator ::= MUL_ASSIGN.
assignment_operator ::= DIV_ASSIGN.
assignment_operator ::= MOD_ASSIGN.
assignment_operator ::= ADD_ASSIGN.
assignment_operator ::= SUB_ASSIGN.
assignment_operator ::= LEFT_ASSIGN.
assignment_operator ::= RIGHT_ASSIGN.
assignment_operator ::= AND_ASSIGN.
assignment_operator ::= XOR_ASSIGN.
assignment_operator ::= OR_ASSIGN.
expression ::= assignment_expression.
expression ::= expression COMMA assignment_expression.
constant_expression ::= conditional_expression.
declaration ::= declaration_specifiers SEMIC.
declaration ::= declaration_specifiers init_declarator_list SEMIC.
declaration ::= error SEMIC.
declaration ::= error RCURLY.
declaration_specifiers ::= storage_class_specifier.
declaration_specifiers ::= storage_class_specifier declaration_specifiers.
declaration_specifiers ::= type_specifier.
declaration_specifiers ::= type_specifier declaration_specifiers.
declaration_specifiers ::= type_qualifier.
declaration_specifiers ::= type_qualifier declaration_specifiers.
init_declarator_list ::= init_declarator.
init_declarator_list ::= init_declarator_list COMMA init_declarator.
init_declarator ::= declarator.
init_declarator ::= declarator EQUALS initializer.
storage_class_specifier ::= TYPEDEF.
storage_class_specifier ::= EXTERN.
storage_class_specifier ::= STATIC.
storage_class_specifier ::= AUTO.
storage_class_specifier ::= REGISTER.
type_specifier ::= VOID.
type_specifier ::= CHAR.
type_specifier ::= SHORT.
type_specifier ::= INT.
type_specifier ::= LONG.
type_specifier ::= FLOAT.
type_specifier ::= DOUBLE.
type_specifier ::= SIGNED.
type_specifier ::= UNSIGNED.
type_specifier ::= struct_or_union_specifier.
type_specifier ::= enum_specifier.
type_specifier ::= TYPE_NAME.
struct_or_union_specifier ::= struct_or_union IDENTIFIER LCURLY struct_declaration_list RCURLY.
struct_or_union_specifier ::= struct_or_union LCURLY struct_declaration_list RCURLY.
struct_or_union_specifier ::= struct_or_union IDENTIFIER.
struct_or_union ::= STRUCT.
struct_or_union ::= UNION.
struct_declaration_list ::= struct_declaration.
struct_declaration_list ::= struct_declaration_list struct_declaration.
struct_declaration ::= specifier_qualifier_list struct_declarator_list SEMIC.
specifier_qualifier_list ::= type_specifier specifier_qualifier_list.
specifier_qualifier_list ::= type_specifier.
specifier_qualifier_list ::= type_qualifier specifier_qualifier_list.
specifier_qualifier_list ::= type_qualifier.
struct_declarator_list ::= struct_declarator.
struct_declarator_list ::= struct_declarator_list COMMA struct_declarator.
struct_declarator ::= declarator.
struct_declarator ::= COLON constant_expression.
struct_declarator ::= declarator COLON constant_expression.
enum_specifier ::= ENUM LCURLY enumerator_list RCURLY.
enum_specifier ::= ENUM IDENTIFIER LCURLY enumerator_list RCURLY.
enum_specifier ::= ENUM IDENTIFIER.
enumerator_list ::= enumerator.
enumerator_list ::= enumerator_list COMMA enumerator.
enumerator ::= IDENTIFIER.
enumerator ::= IDENTIFIER EQUALS constant_expression.
type_qualifier ::= CONST.
type_qualifier ::= VOLATILE.
declarator ::= pointer direct_declarator.
declarator ::= direct_declarator.
direct_declarator ::= IDENTIFIER.
direct_declarator ::= LPAREN declarator RPAREN.
direct_declarator ::= direct_declarator LSQUARE constant_expression RSQUARE.
direct_declarator ::= direct_declarator LSQUARE RSQUARE.
direct_declarator ::= direct_declarator LPAREN parameter_type_list RPAREN.
direct_declarator ::= direct_declarator LPAREN identifier_list RPAREN.
direct_declarator ::= direct_declarator LPAREN RPAREN.
pointer ::= STAR.
pointer ::= STAR type_qualifier_list.
pointer ::= STAR pointer.
pointer ::= STAR type_qualifier_list pointer.
type_qualifier_list ::= type_qualifier.
type_qualifier_list ::= type_qualifier_list type_qualifier.
parameter_type_list ::= parameter_list.
parameter_type_list ::= parameter_list COMMA ELLIPSIS.
parameter_list ::= parameter_declaration.
parameter_list ::= parameter_list COMMA parameter_declaration.
parameter_declaration ::= declaration_specifiers declarator.
parameter_declaration ::= declaration_specifiers abstract_declarator.
parameter_declaration ::= declaration_specifiers.
identifier_list ::= IDENTIFIER.
identifier_list ::= identifier_list COMMA IDENTIFIER.
type_name ::= specifier_qualifier_list.
type_name ::= specifier_qualifier_list abstract_declarator.
abstract_declarator ::= pointer.
abstract_declarator ::= direct_abstract_declarator.
abstract_declarator ::= pointer direct_abstract_declarator.
direct_abstract_declarator ::= LPAREN abstract_declarator RPAREN.
direct_abstract_declarator ::= LSQUARE RSQUARE.
direct_abstract_declarator ::= LSQUARE constant_expression RSQUARE.
direct_abstract_declarator ::= direct_abstract_declarator LSQUARE RSQUARE.
direct_abstract_declarator ::= direct_abstract_declarator LSQUARE constant_expression RSQUARE.
direct_abstract_declarator ::= LPAREN RPAREN.
direct_abstract_declarator ::= LPAREN parameter_type_list RPAREN.
direct_abstract_declarator ::= direct_abstract_declarator LPAREN RPAREN.
direct_abstract_declarator ::= direct_abstract_declarator LPAREN parameter_type_list RPAREN.
initializer ::= assignment_expression.
initializer ::= LCURLY initializer_list RCURLY.
initializer ::= LCURLY initializer_list COMMA RCURLY.
initializer_list ::= initializer.
initializer_list ::= initializer_list COMMA initializer.
statement ::= labeled_statement.
statement ::= compound_statement.
statement ::= expression_statement.
statement ::= selection_statement.
statement ::= iteration_statement.
statement ::= jump_statement.
labeled_statement ::= IDENTIFIER COLON statement.
labeled_statement ::= CASE constant_expression COLON statement.
labeled_statement ::= DEFAULT COLON statement.
compound_statement ::= LCURLY RCURLY.
compound_statement ::= LCURLY statement_list RCURLY.
compound_statement ::= LCURLY declaration_list RCURLY.
compound_statement ::= LCURLY declaration_list statement_list RCURLY.
declaration_list ::= declaration.
declaration_list ::= declaration_list declaration.
statement_list ::= statement.
statement_list ::= statement_list statement.
expression_statement ::= SEMIC.
expression_statement ::= expression SEMIC.
selection_statement ::= IF LPAREN expression RPAREN statement.
selection_statement ::= IF LPAREN expression RPAREN statement ELSE statement.
selection_statement ::= SWITCH LPAREN expression RPAREN statement.
iteration_statement ::= WHILE LPAREN expression RPAREN statement.
iteration_statement ::= DO statement WHILE LPAREN expression RPAREN SEMIC.
iteration_statement ::= FOR LPAREN expression_statement expression_statement RPAREN statement.
iteration_statement ::= FOR LPAREN expression_statement expression_statement expression RPAREN statement.
jump_statement ::= GOTO IDENTIFIER SEMIC.
jump_statement ::= CONTINUE SEMIC.
jump_statement ::= BREAK SEMIC.
jump_statement ::= RETURN SEMIC.
jump_statement ::= RETURN expression SEMIC.
translation_unit ::= external_declaration.
translation_unit ::= translation_unit external_declaration.
external_declaration ::= function_definition.
external_declaration ::= declaration.
function_definition ::= declaration_specifiers declarator declaration_list compound_statement.
function_definition ::= declaration_specifiers declarator compound_statement.
function_definition ::= declarator declaration_list compound_statement.
function_definition ::= declarator compound_statement.