Press n or j to go to the next uncovered block, b, p or k for the previous block.
| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 | 5x 5x 5x 6x 6x 6x 6x 384x 24576x 24576x 6x 6x 6x 457x 457x 457x 457x 5293x 5293x 5293x 5293x 5293x 5293x 457x 308x 161x 161x 147x 147x 147x 147x 147x 308x | import {flatstr} from './util/strings/flatstr';
import {alphabet} from './constants';
export const createToBase64 = (chars: string = alphabet, pad: string = '=') => {
Iif (chars.length !== 64) throw new Error('chars must be 64 characters long');
const table = chars.split('');
const table2: string[] = [];
for (const c1 of table) {
for (const c2 of table) {
const two = flatstr(c1 + c2);
table2.push(two);
}
}
const E: string = pad;
const EE: string = flatstr(pad + pad);
return (uint8: Uint8Array, length: number): string => {
let out = '';
const extraLength = length % 3;
const baseLength = length - extraLength;
for (let i = 0; i < baseLength; i += 3) {
const o1 = uint8[i];
const o2 = uint8[i + 1];
const o3 = uint8[i + 2];
const v1 = (o1 << 4) | (o2 >> 4);
const v2 = ((o2 & 0b1111) << 8) | o3;
out += table2[v1] + table2[v2];
}
if (!extraLength) return out;
if (extraLength === 1) {
const o1 = uint8[baseLength];
out += table2[o1 << 4] + EE;
} else {
const o1 = uint8[baseLength];
const o2 = uint8[baseLength + 1];
const v1 = (o1 << 4) | (o2 >> 4);
const v2 = (o2 & 0b1111) << 2;
out += table2[v1] + table[v2] + E;
}
return out;
};
};
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