voqn / cacco Goto Github PK

binary digit = "0" | "1";
octal digit = "0" | "1" | "2" | "3" | "4" | "5" | "6" | "7";
digit = "0" | "1" | "2" | "3" | "4" | "5" | "6" | "7" | "8" | "9";
hex alphabet =  "a" | "b" | "c" | "d" | "e" | "f" | "A" | "B" | "C" | "D" | "E" | "F";
hex digit = digit | hex alphabet;
sign = "+" | "-";

decimal = digit, {digit};
binary = "0b", binary digit, binary digit;
octal = "0o", octal digit, {octal digit};
hexadecimal = "0x", hex digit, {hex digit};
natural integer = decimal | binary | octal | hexadecimal;
signed integer = [sign], natural integer;

int8 = signed integer, "_i8";
int16 = signed integer, "_i16";
int32 = signed integer, "_i32";
int64 = signed integer, "_i64";

uint8 = natural integer, "_u8";
uint16 = natural integer, "_u16";
uint32 = natural integer, "_u32";
uint64 = natural integer, "_u64";

digit = "0" | "1" | "2" | "3" | "4" | "5" | "6" | "7" | "8" | "9";
hex alphabet =
    "a" | "b" | "c" | "d" | "e" | "f" |
    "A" | "B" | "C" | "D" | "E" | "F"
;
hex digit = digit | hex alphabet;
sign = "+" | "-";

decimal float =
    digit, {digit}
    [".", digit, {digit} ]
    ["e", [sign], digit, {digit}]
;
hexadecimal float =
    "0x", hex digit, {hex digit}
    [".", hex digit, {hex digit}]
    ["p", [sign], digit, {digit}]
;
natural float = decimal float | hexadecimal float ;
signed float = [sign], natural float;

float16 = signed float, "_f16";
float32 = signed float, "_f32";
float64 = signed float, "_f64";

digit = "0" | "1" | "2" | "3" | "4" | "5" | "6" | "7" | "8" | "9";

sign = "+" | "-";

decimal float =
    digit, {digit}
    [".", digit, {digit} ]
    ["e", [sign], digit, {digit}]
;

natural float = decimal float;
signed float = [sign], natural float;

float16 = signed float, "_f16";
float32 = signed float, "_f32";
float64 = signed float, "_f64";