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Grammar.txt
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Grammar.txt
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keyword : one of
asm
break
char
const
continue
do
double
else
extern
float
for
global
goto
if
int
long
record
return
short
sizeof
static
void
while
symbol : one of
! % ^ ~ & * ( ) - + = [ ] { } | : ; < > , . / \ ' " $
literal :
integer-literal
float-literal
character-literal
string-literal
integer-literal :
decimal-literal
octal-literal
hexadecimal-literal
binary-literal
decimal-literal :
nonzero-digit
nonzero-digit sub-decimal-literal
sub-decimal-literal :
digit
digit sub-decimal-literal
octal-literal :
0
0 sub-octal-literal
sub-octal-literal :
octal-digit
octal-digit sub-octal-literal
hexadecimal-literal :
0x sub-hexadecimal-literal
0X sub-hexadecimal-literal
sub-hexadecimal-literal :
hexadecimal-digit
hexadecimal-digit sub-hexadecimal-literal
binary-literal :
0b sub-binary-literal
0B sub-binary-literal
sub-binary-literal :
one of 0 1
one of 0 1 sub-binary-literal
digit : one of
0 1 2 3 4 5 6 7 8 9
nonzero-digit : one of
1 2 3 4 5 6 7 8 9
octal-digit : one of
0 1 2 3 4 5 6 7
hexadecimal-digit : one of
0 1 2 3 4 5 6 7 8 9
a b c d e f
A B C D E F
float-literal :
digit-sequence . digit-sequence
digit-sequence .
digit-sequence :
digit
digit digit-sequence
comment :
/ / any character except newline
/ * any character * /
character-literal :
'c-char-sequence'
c-char-sequence :
c-char
c-char c-char-sequence
c-char :
any character except single quote, backslash and new line
escape-sequence
escape-sequence :
\' \" \? \\ \a \b \f \n \r \t \v \0
string-literal :
"s-char-sequence"
s-char-sequence :
s-char
s-char s-char-sequence
s-char :
any character except double quote, backslash and new line
escape-sequence
string-literal-sequence :
string-literal
string-literal , string-literal-sequence
non-digit : one of
_ $ a b c d e f g h i j k l m n o p q r s t u v w x y z
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
identifier :
non-digit
non-digit sub-identifier
sub-identifier :
non-digit
digit
non-digit sub-identifier
digit sub-identifier
token :
identifier
keyword
literal
assignment-operator
arithmetic-operator
comparison-operator
logical-operator
bitwise-operator
pointer-operator
address-of-operator
incr-operator
decr-operator
.
,
{
}
[
]
(
)
:
;
expression :
primary-expression
assignment-expression
sizeof-expression
cast-expression
id-expression
function-call-expression
primary-expression :
literal
identifier
( primary-expression )
( primary-expression ) primary-expression
unary-operator primary-expression
literal binary-operator primary-expression
id-expression binary-operator primary-expression
sub-primary-expression
sub-primary-expression :
binary-operator primary-expression
constant-expression :
integer-literal
character-literal
assignment-expression :
id-expression assignment-operator expression
incr-decr-expression :
prefix-incr-expression
postfix-incr-expression
prefix-decr-expression
postfix-decr-expression
prefix-incr-expression :
incr-operator id-expression
postfix-incr-expression :
id-expression incr-operator
prefix-decr-expression :
decr-operator id-expression
postfix-decr-expression :
id-expression decr-operator
incr-operator :
++
decr-operator :
--
id-expression :
identifier
identifier . id-expression
identifier -> id-expression
identifier subscript-id-access
pointer-indirection-access
incr-decr-expression
address-of-expression
subscript-id-access :
[ identifier ]
[ constant-expression ]
[ id-expression ] subscript-id-access
[ constant-expression ] subscript-id-access
[ identifier ] . id-expression
[ constant-expression ] -> id-expression
pointer-indirection-access :
pointer-operator-sequence id-expression
pointer-operator-sequence :
pointer-operator
pointer-operator pointer-operator-sequence
pointer-operator :
*
unary-operator : one of
+ - ! ~
binary-operator :
arithmetic-operator
logical-operator
comparison-operator
bitwise-operator
arithmetic-operator : one of
+ - * / %
logical-operator : one of
&& ||
comparison-operator : one of
< <= > >= == !=
bitwise-operator : one of
| & ^ << >> bit_and bit_or bit_xor
assignment-operator : one of
= += -= *= /= %= |= &= ^= <<= >>=
address-of-expression :
& id-expression
sizeof-expression :
sizeof ( simple-type-specifier )
sizeof ( identifier )
cast-expression :
( cast-type-specifier ) identifier
cast-type-specifier :
simple-type-specifier
identifier
simple-type-specifier pointer-operator-sequence
identifier pointer-operator-sequence
function-call-expression :
id-expression ( )
id-expression ( func-call-expression-list )
func-call-expression-list :
expression
expression , func-call-expression-list
type-specifier :
simple-type-specifier
record-name
simple-type-specifier :
void
char
double
float
int
short
long
record-specifier :
record-head { record-member-definition }
record-head :
global record record-name
record record-name
record-name :
identifier
record-member-definition :
type-specifier rec-id-list
rec-id-list :
identifier
identifier rec-subscript-member
identifier , rec-id-list
identifier rec-subscript-member , rec-id-list
pointer-operator-sequence rec-id-list
rec-func-pointer-member
pointer-operator-sequence rec-func-pointer-member
rec-subscript-member :
[ constant-expression ]
[ constant-expression ] rec-subscript-member
rec-func-pointer-member :
( pointer-operator identifier ) ( rec-func-pointer-params )
rec-func-pointer-params :
type-specifier
type-specifier pointer-operator-sequence
type-specifier , rec-func-pointer-params
type-specifier pointer-operator-sequence , rec-func-pointer-params
declaration :
simple-declaration
function-declaration
simple-declaration :
type-specifier simple-declarator-list
const type-specifier simple-declarator-list
extern type-specifier simple-declarator-list
static type-specifier simple-declarator-list
global type-specifier simple-declarator-list
simple-declarator-list :
identifier
identifier subscript-declarator
identifier , simple-declarator-list
identifier subscript-declarator , simple-declarator-list
pointer-operator-sequence simple-declarator-list
subscript-declarator :
[ constant-expression ]
[ constant-expression ] subscript-declarator
function-declaration :
func-head
func-head :
type-specifier function-name ( func-params )
extern type-specifier function-name ( func-params )
global type-specifier function-name ( func-params )
function-name :
identifier
func-params :
type-specifier
type-specifier identifier
type-specifier pointer-operator-sequence
type-specifier pointer-operator-sequence identifier
type-specifier , func-params
type-specifier identifier , func-params
type-specifier pointer-operator-sequence , func-params
type-specifier pointer-operator-sequence identifier , func-params
asm-statement :
asm { asm-statement-sequence }
asm-statement-sequence :
string-literal [ asm-operand : asm-operand ]
string-literal [ asm-operand : asm-operand ] , asm-statement-sequence
asm-operand :
string-literal ( expression )
string-literal ( expression ) , asm-operand
function-definition :
func-head { statement }
statement :
labled-statement
expression-statement
selection-statement
iteration-statement
jump-statement
simple-declaration
statement-list :
statement
statement statement-list
labled-statement :
identifier :
expression-statement :
expression
selection-statement :
if ( condition ) { statement-list }
if ( condition ) { statement-list } else { statement-list }
condition :
expression
iteration-statement :
while ( condition ) { statement-list }
do { statement-list } while ( condition ) ;
for ( init-expression ; condition ; update-expression ) { statement-list }
jump-statement :
break ;
continue ;
return expression
goto identifier
declaration-statement :
declaration