FLOAT and TYPED_FLOAT
Float literal.
FLOAT syntax
FLOAT = [0-9]+ . [0-9]* EXPONENT? or [0-9]* . [0-9]+ EXPONENT? EXPONENT = [eE][+-]? [0-9]+TYPED_FLOAT Syntax
TYPED_FLOAT = FLOAT (_f32 or _f64)Float literal.
FLOAT = [0-9]+ . [0-9]* EXPONENT? or [0-9]* . [0-9]+ EXPONENT? EXPONENT = [eE][+-]? [0-9]+TYPED_FLOAT = FLOAT (_f32 or _f64)