wdg-base32 0.3.14

The Base32 Data Encoding
Documentation 
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pub static ALPHABET32_ENCODE:&'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
];

pub static ALPHABET32_DECODE:&'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)->B32DecodeError;
    fn decode(data:I)->Result<O,B32DecodeError>;
    unsafe fn unsafe_decode(data:I)->O;
}

#[derive(Copy, Clone, PartialEq, Eq, Debug)]
pub enum B32DecodeError{
    Null,
    InvalidByte,
    InvalidPadding,
    InvalidLength
}

fn b32_validation(ptd:*const u8,len:usize,pta:*const u8,max_pad:usize,pad:u8,rem:usize,min_len:usize)->B32DecodeError{
    if len==0 {return B32DecodeError::Null;}
    if len<min_len {return B32DecodeError::InvalidLength;}
    if len%rem!=0 {return B32DecodeError::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 B32DecodeError::InvalidPadding;}
    if ((pad>>pdl)&0b1)==0 {return B32DecodeError::InvalidPadding;}
    unsafe{while ind>-1{if *pta.offset(*ptd.offset(ind) as isize)==255{return B32DecodeError::InvalidByte;}ind-=1;}}
    return B32DecodeError::Null;
}

include!("include/be_encode.rs");
include!("include/le_encode.rs");

#[cfg(target_endian = "little")]
const b32_encode:fn(*const u8,usize,*const u8)->String=b32_encode_le;

#[cfg(target_endian = "little")]
const b32_encode_1:fn(*const u8,usize,*const u8)->String=b32_encode_le_1;

#[cfg(target_endian = "little")]
const b32_encode_2:fn(*const u8,usize,*const u8)->String=b32_encode_le_2;

#[cfg(target_endian = "little")]
const b32_encode_4:fn(*const u8,usize,*const u8)->String=b32_encode_le_4;

#[cfg(target_endian = "little")]
const b32_encode_8:fn(*const u8,usize,*const u8)->String=b32_encode_le_8;



#[cfg(target_endian = "big")]
const b32_encode:fn(*const u8,usize,*const u8)->String=b32_encode_be;

#[cfg(target_endian = "big")]
const b32_encode_1:fn(*const u8,usize,*const u8)->String=b32_encode_be_1;










pub fn b32_encode_le(mut ptr_data:*const u8,mut len_data:usize,ptr_alphabet:*const u8)->String{
    let size:usize=len_data/5*8+if len_data%5==0 {0}else{8};
    let mut string:String=String::with_capacity(size);
    let mut d:u64;
    unsafe{
        let mut vector=&mut string.as_mut_vec();
        vector.resize(size,0);
        let mut pointer=vector.as_mut_ptr();
        while len_data>8{
            d=(*(ptr_data as *const u64)).to_be();
            *pointer.offset(0)=*ptr_alphabet.offset((((d>>59))&0b11111) as isize);
            *pointer.offset(1)=*ptr_alphabet.offset((((d>>54))&0b11111) as isize);
            *pointer.offset(2)=*ptr_alphabet.offset((((d>>49))&0b11111) as isize);
            *pointer.offset(3)=*ptr_alphabet.offset((((d>>44))&0b11111) as isize);
            *pointer.offset(4)=*ptr_alphabet.offset((((d>>39))&0b11111) as isize);
            *pointer.offset(5)=*ptr_alphabet.offset((((d>>34))&0b11111) as isize);
            *pointer.offset(6)=*ptr_alphabet.offset((((d>>29))&0b11111) as isize);
            *pointer.offset(7)=*ptr_alphabet.offset((((d>>24))&0b11111) as isize);
            pointer=pointer.offset(8);
            ptr_data=ptr_data.offset(5);
            len_data-=5;
        }
        while len_data>4{
            *pointer.offset(0)=*ptr_alphabet.offset(((*ptr_data.offset(0)&0b11111000)>>3) as isize);
            *pointer.offset(1)=*ptr_alphabet.offset((((*ptr_data.offset(0)&0b00000111)<<2)|((*ptr_data.offset(1)&0b11000000)>>6)) as isize);
            *pointer.offset(2)=*ptr_alphabet.offset(((*ptr_data.offset(1)&0b00111110)>>1) as isize);
            *pointer.offset(3)=*ptr_alphabet.offset((((*ptr_data.offset(1)&0b00000001)<<4)|((*ptr_data.offset(2)&0b11110000)>>4)) as isize);
            *pointer.offset(4)=*ptr_alphabet.offset((((*ptr_data.offset(2)&0b00001111)<<1)|((*ptr_data.offset(3)&0b10000000)>>7)) as isize);
            *pointer.offset(5)=*ptr_alphabet.offset(((*ptr_data.offset(3)&0b01111100)>>2) as isize);
            *pointer.offset(6)=*ptr_alphabet.offset((((*ptr_data.offset(3)&0b00000011)<<3)|((*ptr_data.offset(4)&0b11100000)>>5)) as isize);
            *pointer.offset(7)=*ptr_alphabet.offset(((*ptr_data.offset(4)&0b00011111)>>0) as isize);
            pointer=pointer.offset(8);
            ptr_data=ptr_data.offset(5);
            len_data-=5;
        }
        if len_data==4{
            *pointer.offset(0)=*ptr_alphabet.offset(((*ptr_data.offset(0)&0b11111000)>>3) as isize);
            *pointer.offset(1)=*ptr_alphabet.offset((((*ptr_data.offset(0)&0b00000111)<<2)|((*ptr_data.offset(1)&0b11000000)>>6)) as isize);
            *pointer.offset(2)=*ptr_alphabet.offset(((*ptr_data.offset(1)&0b00111110)>>1) as isize);
            *pointer.offset(3)=*ptr_alphabet.offset((((*ptr_data.offset(1)&0b00000001)<<4)|((*ptr_data.offset(2)&0b11110000)>>4)) as isize);
            *pointer.offset(4)=*ptr_alphabet.offset((((*ptr_data.offset(2)&0b00001111)<<1)|((*ptr_data.offset(3)&0b10000000)>>7)) as isize);
            *pointer.offset(5)=*ptr_alphabet.offset(((*ptr_data.offset(3)&0b01111100)>>2) as isize);
            *pointer.offset(6)=*ptr_alphabet.offset(((*ptr_data.offset(3)&0b00000011)<<3) as isize);
            *pointer.offset(7)=61;
        }else{
            if len_data==3{
                *pointer.offset(0)=*ptr_alphabet.offset(((*ptr_data.offset(0)&0b11111000)>>3) as isize);
                *pointer.offset(1)=*ptr_alphabet.offset((((*ptr_data.offset(0)&0b00000111)<<2)|((*ptr_data.offset(1)&0b11000000)>>6)) as isize);
                *pointer.offset(2)=*ptr_alphabet.offset(((*ptr_data.offset(1)&0b00111110)>>1) as isize);
                *pointer.offset(3)=*ptr_alphabet.offset((((*ptr_data.offset(1)&0b00000001)<<4)|((*ptr_data.offset(2)&0b11110000)>>4)) as isize);
                *pointer.offset(4)=*ptr_alphabet.offset(((*ptr_data.offset(2)&0b00001111)<<1) as isize);
                *pointer.offset(5)=61;
                *pointer.offset(6)=61;
                *pointer.offset(7)=61;
            }else{
                if len_data==2{
                    *pointer.offset(0)=*ptr_alphabet.offset(((*ptr_data.offset(0)&0b11111000)>>3) as isize);
                    *pointer.offset(1)=*ptr_alphabet.offset((((*ptr_data.offset(0)&0b00000111)<<2)|((*ptr_data.offset(1)&0b11000000)>>6)) as isize);
                    *pointer.offset(2)=*ptr_alphabet.offset(((*ptr_data.offset(1)&0b00111110)>>1) as isize);
                    *pointer.offset(3)=*ptr_alphabet.offset(((*ptr_data.offset(1)&0b00000001)<<4) as isize);
                    *pointer.offset(4)=61;
                    *pointer.offset(5)=61;
                    *pointer.offset(6)=61;
                    *pointer.offset(7)=61;
                }else{
                    if len_data==1{
                        *pointer.offset(0)=*ptr_alphabet.offset(((*ptr_data.offset(0)&0b11111000)>>3) as isize);
                        *pointer.offset(1)=*ptr_alphabet.offset(((*ptr_data.offset(0)&0b00000111)<<2) as isize);
                        *pointer.offset(2)=61;
                        *pointer.offset(3)=61;
                        *pointer.offset(4)=61;
                        *pointer.offset(5)=61;
                        *pointer.offset(6)=61;
                        *pointer.offset(7)=61;
                    }
                }
            }
        }
    }
    return string;
}

#[allow(dead_code)]
fn b32_encode_be(mut ptr_data:*const u8,mut len_data:usize,ptr_alphabet:*const u8)->String{
    let size:usize=len_data/5*8+if len_data%5==0 {0}else{8};
    let mut string:String=String::with_capacity(size);
    let mut d:u64;
    unsafe{
        let mut vector=&mut string.as_mut_vec();
        vector.resize(size,0);
        let mut pointer=vector.as_mut_ptr();
        while len_data>8{
            d=*(ptr_data as *const u64);
            *pointer.offset(0)=*ptr_alphabet.offset((((d>>59))&0b11111) as isize);
            *pointer.offset(1)=*ptr_alphabet.offset((((d>>54))&0b11111) as isize);
            *pointer.offset(2)=*ptr_alphabet.offset((((d>>49))&0b11111) as isize);
            *pointer.offset(3)=*ptr_alphabet.offset((((d>>44))&0b11111) as isize);
            *pointer.offset(4)=*ptr_alphabet.offset((((d>>39))&0b11111) as isize);
            *pointer.offset(5)=*ptr_alphabet.offset((((d>>34))&0b11111) as isize);
            *pointer.offset(6)=*ptr_alphabet.offset((((d>>29))&0b11111) as isize);
            *pointer.offset(7)=*ptr_alphabet.offset((((d>>24))&0b11111) as isize);
            pointer=pointer.offset(8);
            ptr_data=ptr_data.offset(5);
            len_data-=5;
        }
        while len_data>4{
            *pointer.offset(0)=*ptr_alphabet.offset(((*ptr_data.offset(0)&0b11111000)>>3) as isize);
            *pointer.offset(1)=*ptr_alphabet.offset((((*ptr_data.offset(0)&0b00000111)<<2)|((*ptr_data.offset(1)&0b11000000)>>6)) as isize);
            *pointer.offset(2)=*ptr_alphabet.offset(((*ptr_data.offset(1)&0b00111110)>>1) as isize);
            *pointer.offset(3)=*ptr_alphabet.offset((((*ptr_data.offset(1)&0b00000001)<<4)|((*ptr_data.offset(2)&0b11110000)>>4)) as isize);
            *pointer.offset(4)=*ptr_alphabet.offset((((*ptr_data.offset(2)&0b00001111)<<1)|((*ptr_data.offset(3)&0b10000000)>>7)) as isize);
            *pointer.offset(5)=*ptr_alphabet.offset(((*ptr_data.offset(3)&0b01111100)>>2) as isize);
            *pointer.offset(6)=*ptr_alphabet.offset((((*ptr_data.offset(3)&0b00000011)<<3)|((*ptr_data.offset(4)&0b11100000)>>5)) as isize);
            *pointer.offset(7)=*ptr_alphabet.offset(((*ptr_data.offset(4)&0b00011111)>>0) as isize);
            pointer=pointer.offset(8);
            ptr_data=ptr_data.offset(5);
            len_data-=5;
        }
        if len_data==4{
            *pointer.offset(0)=*ptr_alphabet.offset(((*ptr_data.offset(0)&0b11111000)>>3) as isize);
            *pointer.offset(1)=*ptr_alphabet.offset((((*ptr_data.offset(0)&0b00000111)<<2)|((*ptr_data.offset(1)&0b11000000)>>6)) as isize);
            *pointer.offset(2)=*ptr_alphabet.offset(((*ptr_data.offset(1)&0b00111110)>>1) as isize);
            *pointer.offset(3)=*ptr_alphabet.offset((((*ptr_data.offset(1)&0b00000001)<<4)|((*ptr_data.offset(2)&0b11110000)>>4)) as isize);
            *pointer.offset(4)=*ptr_alphabet.offset((((*ptr_data.offset(2)&0b00001111)<<1)|((*ptr_data.offset(3)&0b10000000)>>7)) as isize);
            *pointer.offset(5)=*ptr_alphabet.offset(((*ptr_data.offset(3)&0b01111100)>>2) as isize);
            *pointer.offset(6)=*ptr_alphabet.offset(((*ptr_data.offset(3)&0b00000011)<<3) as isize);
            *pointer.offset(7)=61;
        }else{
            if len_data==3{
                *pointer.offset(0)=*ptr_alphabet.offset(((*ptr_data.offset(0)&0b11111000)>>3) as isize);
                *pointer.offset(1)=*ptr_alphabet.offset((((*ptr_data.offset(0)&0b00000111)<<2)|((*ptr_data.offset(1)&0b11000000)>>6)) as isize);
                *pointer.offset(2)=*ptr_alphabet.offset(((*ptr_data.offset(1)&0b00111110)>>1) as isize);
                *pointer.offset(3)=*ptr_alphabet.offset((((*ptr_data.offset(1)&0b00000001)<<4)|((*ptr_data.offset(2)&0b11110000)>>4)) as isize);
                *pointer.offset(4)=*ptr_alphabet.offset(((*ptr_data.offset(2)&0b00001111)<<1) as isize);
                *pointer.offset(5)=61;
                *pointer.offset(6)=61;
                *pointer.offset(7)=61;
            }else{
                if len_data==2{
                    *pointer.offset(0)=*ptr_alphabet.offset(((*ptr_data.offset(0)&0b11111000)>>3) as isize);
                    *pointer.offset(1)=*ptr_alphabet.offset((((*ptr_data.offset(0)&0b00000111)<<2)|((*ptr_data.offset(1)&0b11000000)>>6)) as isize);
                    *pointer.offset(2)=*ptr_alphabet.offset(((*ptr_data.offset(1)&0b00111110)>>1) as isize);
                    *pointer.offset(3)=*ptr_alphabet.offset(((*ptr_data.offset(1)&0b00000001)<<4) as isize);
                    *pointer.offset(4)=61;
                    *pointer.offset(5)=61;
                    *pointer.offset(6)=61;
                    *pointer.offset(7)=61;
                }else{
                    if len_data==1{
                        *pointer.offset(0)=*ptr_alphabet.offset(((*ptr_data.offset(0)&0b11111000)>>3) as isize);
                        *pointer.offset(1)=*ptr_alphabet.offset(((*ptr_data.offset(0)&0b00000111)<<2) as isize);
                        *pointer.offset(2)=61;
                        *pointer.offset(3)=61;
                        *pointer.offset(4)=61;
                        *pointer.offset(5)=61;
                        *pointer.offset(6)=61;
                        *pointer.offset(7)=61;
                    }
                }
            }
        }
    }
    return string;
}


#[allow(dead_code)]
pub fn b32_decode(ptr_input:*const u8,len_input:usize,ptr_alphabet:*const u8,mut pointer:*mut u8,np:usize){
    let mut ptr_data=ptr_input;
    let mut len_data=len_input;
    unsafe{
        while len_data>8{
            *pointer.offset(0)=*ptr_alphabet.offset(*ptr_data.offset(0) as isize)<<3|*ptr_alphabet.offset(*ptr_data.offset(1) as isize)>>2;
            *pointer.offset(1)=*ptr_alphabet.offset(*ptr_data.offset(1) as isize)<<6|*ptr_alphabet.offset(*ptr_data.offset(2) as isize)<<1|*ptr_alphabet.offset(*ptr_data.offset(3) as isize)>>4;
            *pointer.offset(2)=*ptr_alphabet.offset(*ptr_data.offset(3) as isize)<<4|*ptr_alphabet.offset(*ptr_data.offset(4) as isize)>>1;
            *pointer.offset(3)=*ptr_alphabet.offset(*ptr_data.offset(4) as isize)<<7|*ptr_alphabet.offset(*ptr_data.offset(5) as isize)<<2|*ptr_alphabet.offset(*ptr_data.offset(6) as isize)>>3;
            *pointer.offset(4)=*ptr_alphabet.offset(*ptr_data.offset(6) as isize)<<5|*ptr_alphabet.offset(*ptr_data.offset(7) as isize)<<0;
            pointer=pointer.offset(5);
            ptr_data=ptr_data.offset(8);
            len_data-=8;
        }
        if len_data==8{
            if np>0{
                if np>3{
                    if np>5{
                        *pointer.offset(0)=*ptr_alphabet.offset(*ptr_data.offset(0) as isize)<<3|*ptr_alphabet.offset(*ptr_data.offset(1) as isize)>>2;
                        *pointer.offset(1)=*ptr_alphabet.offset(*ptr_data.offset(1) as isize)<<6;
                    }else{
                        *pointer.offset(0)=*ptr_alphabet.offset(*ptr_data.offset(0) as isize)<<3|*ptr_alphabet.offset(*ptr_data.offset(1) as isize)>>2;
                        *pointer.offset(1)=*ptr_alphabet.offset(*ptr_data.offset(1) as isize)<<6|*ptr_alphabet.offset(*ptr_data.offset(2) as isize)<<1|*ptr_alphabet.offset(*ptr_data.offset(3) as isize)>>4;
                        *pointer.offset(2)=*ptr_alphabet.offset(*ptr_data.offset(3) as isize)<<4;
                    }
                }else{
                    if np>2{
                        *pointer.offset(0)=*ptr_alphabet.offset(*ptr_data.offset(0) as isize)<<3|*ptr_alphabet.offset(*ptr_data.offset(1) as isize)>>2;
                        *pointer.offset(1)=*ptr_alphabet.offset(*ptr_data.offset(1) as isize)<<6|*ptr_alphabet.offset(*ptr_data.offset(2) as isize)<<1|*ptr_alphabet.offset(*ptr_data.offset(3) as isize)>>4;
                        *pointer.offset(2)=*ptr_alphabet.offset(*ptr_data.offset(3) as isize)<<4|*ptr_alphabet.offset(*ptr_data.offset(4) as isize)>>1;
                        *pointer.offset(3)=*ptr_alphabet.offset(*ptr_data.offset(4) as isize)<<7;
                    }else{
                        *pointer.offset(0)=*ptr_alphabet.offset(*ptr_data.offset(0) as isize)<<3|*ptr_alphabet.offset(*ptr_data.offset(1) as isize)>>2;
                        *pointer.offset(1)=*ptr_alphabet.offset(*ptr_data.offset(1) as isize)<<6|*ptr_alphabet.offset(*ptr_data.offset(2) as isize)<<1|*ptr_alphabet.offset(*ptr_data.offset(3) as isize)>>4;
                        *pointer.offset(2)=*ptr_alphabet.offset(*ptr_data.offset(3) as isize)<<4|*ptr_alphabet.offset(*ptr_data.offset(4) as isize)>>1;
                        *pointer.offset(3)=*ptr_alphabet.offset(*ptr_data.offset(4) as isize)<<7|*ptr_alphabet.offset(*ptr_data.offset(5) as isize)<<2|*ptr_alphabet.offset(*ptr_data.offset(6) as isize)>>3;
                        *pointer.offset(4)=*ptr_alphabet.offset(*ptr_data.offset(6) as isize)<<5;
                    }
                }
            }else{
                *pointer.offset(0)=*ptr_alphabet.offset(*ptr_data.offset(0) as isize)<<3|*ptr_alphabet.offset(*ptr_data.offset(1) as isize)>>2;
                *pointer.offset(1)=*ptr_alphabet.offset(*ptr_data.offset(1) as isize)<<6|*ptr_alphabet.offset(*ptr_data.offset(2) as isize)<<1|*ptr_alphabet.offset(*ptr_data.offset(3) as isize)>>4;
                *pointer.offset(2)=*ptr_alphabet.offset(*ptr_data.offset(3) as isize)<<4|*ptr_alphabet.offset(*ptr_data.offset(4) as isize)>>1;
                *pointer.offset(3)=*ptr_alphabet.offset(*ptr_data.offset(4) as isize)<<7|*ptr_alphabet.offset(*ptr_data.offset(5) as isize)<<2|*ptr_alphabet.offset(*ptr_data.offset(6) as isize)>>3;
                *pointer.offset(4)=*ptr_alphabet.offset(*ptr_data.offset(6) as isize)<<5|*ptr_alphabet.offset(*ptr_data.offset(7) as isize)<<0;
            }
        }
    }
}


include!("./include/u8.rs");
include!("./include/u16.rs");
include!("./include/u32.rs");
include!("./include/u64.rs");

include!("./include/vec_u8.rs");
include!("./include/vec_u16.rs");
include!("./include/vec_u32.rs");
include!("./include/vec_u64.rs");

include!("./include/vec_i8.rs");
include!("./include/vec_i16.rs");
include!("./include/vec_i32.rs");
include!("./include/vec_i64.rs");

include!("./include/string.rs");