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static ALPHABET32:&'static[u8;32]=&[
065,066,067,068,069,070,071,072,
073,074,075,076,077,078,079,080,
081,082,083,084,085,086,087,088,
089,090,050,051,052,053,054,055
];
static _ALPHABET32:&'static[u8;256]=&[
255,255,255,255,255,255,255,255,
255,255,255,255,255,255,255,255,
255,255,255,255,255,255,255,255,
255,255,255,255,255,255,255,255,
255,255,255,255,255,255,255,255,
255,255,255,255,255,255,255,255,
255,255,026,027,028,029,030,031,
255,255,255,255,255,255,255,255,
255,000,001,002,003,004,005,006,
007,008,009,010,011,012,013,014,
015,016,017,018,019,020,021,022,
023,024,025,255,255,255,255,255,
255,255,255,255,255,255,255,255,
255,255,255,255,255,255,255,255,
255,255,255,255,255,255,255,255,
255,255,255,255,255,255,255,255,
255,255,255,255,255,255,255,255,
255,255,255,255,255,255,255,255,
255,255,255,255,255,255,255,255,
255,255,255,255,255,255,255,255,
255,255,255,255,255,255,255,255,
255,255,255,255,255,255,255,255,
255,255,255,255,255,255,255,255,
255,255,255,255,255,255,255,255,
255,255,255,255,255,255,255,255,
255,255,255,255,255,255,255,255,
255,255,255,255,255,255,255,255,
255,255,255,255,255,255,255,255,
255,255,255,255,255,255,255,255,
255,255,255,255,255,255,255,255,
255,255,255,255,255,255,255,255,
255,255,255,255,255,255,255,255
];
pub struct B32<T>(T);
pub trait B32Encode<I,O>{fn encode(data:I)->O;}
pub trait B32Decode<I,O>{
fn validation(data:I)->B32Error;
fn decode(data:I)->Result<O,B32Error>;
unsafe fn unsafe_decode(data:I)->O;
}
#[derive(Copy, Clone, PartialEq, Eq, Debug)]
pub enum B32Error{
Null,
InvalidChar,
InvalidPadding,
InvalidLength
}
fn b32_validation(ptd:*const u8,len:usize,pta:*const u8,max_pad:usize,pad:u8,rem:usize)->B32Error{
if len==0 {return B32Error::Null;}
if len%rem!=0 {return B32Error::InvalidLength;}
let mut ind:isize=len as isize;
#[allow(unused_parens)]
unsafe{while({ind-=1;ind>0 && (*ptd.offset(ind)==61)}){}}
let pdl=len-1-ind as usize;
if pdl>max_pad {return B32Error::InvalidPadding;}
if ((pad>>pdl)&0b1)==0 {return B32Error::InvalidPadding;}
unsafe{while ind>-1{if *pta.offset(*ptd.offset(ind) as isize)==255{return B32Error::InvalidChar;}ind-=1;}}
return B32Error::Null;
}
include!("./include/string.rs");