wdg-base32 0.3.8

The Base32 Data Encoding
Documentation
pub fn b32_encode_le_1(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;
}

pub fn b32_encode_le_2(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(1)&0b11111000)>>3) as isize);
                    *pointer.offset(1)=*ptr_alphabet.offset((((*ptr_data.offset(1)&0b00000111)<<2)|((*ptr_data.offset(1)&0b11000000)>>6)) as isize);
                    *pointer.offset(2)=*ptr_alphabet.offset(((*ptr_data.offset(0)&0b00111110)>>1) as isize);
                    *pointer.offset(3)=*ptr_alphabet.offset(((*ptr_data.offset(0)&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;
}