Beta 7 with some repo names changed.

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Luis Fernando Molina committed 2020-11-15 13:05:19 +01:00
1 parent 0f7b40cca7
commit 963c19493a
3408 files changed
+462217 -15516

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const Bytes = require("./bytes");
const inis = "pbtdkgxjfvlrmnsz".split("");
const mids = "auie".split("");
const back = [inis,mids].map(chars => {
let map = {};
for (let i = 0; i < chars.length; ++i)
map[chars[i]] = i;
return map;
});
const syllableFromB64 = b64 => {
const ini = (b64 >>> 2) & 15;
const mid = (b64 >>> 0) & 3;
return inis[ini] + mids[mid];
}
const syllableToB64 = syllable => {
const ini = back[0][syllable[0]];
const mid = back[1][syllable[1]];
return ini * 4 + mid;
}
const b64sFromBytes = bytes => {
//BoooooBoooooBoooooBooooo
//BoooooooBoooooooBooooooo
let b64s = [], b64;
for (let i = 0, l = Math.ceil(bytes.length * 8 / 6); i < l; ++i) {
let j = i / 8 * 6 | 0;
b64s.push
( i % 4 === 0 ? (bytes[j+0] / 4 | 0)
: i % 4 === 1 ? bytes[j+0] % 4 * 16 + (bytes[j+1] / 16 | 0)
: i % 4 === 2 ? bytes[j+0] % 16 * 4 + (bytes[j+1] / 64 | 0)
: bytes[j+0] % 64 * 1);
}
return b64s;
}
const b64sToBytes = b64s => {
let bytes = [];
for (let i = 0, l = Math.floor(b64s.length * 6 / 8); i < l; ++i) {
let j = i / 6 * 8 | 0;
bytes.push
( i % 3 === 0 ? b64s[j+0] % 64 * 4 + (b64s[j+1] / 16 | 0)
: i % 3 === 1 ? b64s[j+0] % 16 * 16 + (b64s[j+1] / 4 | 0)
: b64s[j+0] % 4 * 64 + (b64s[j+1] / 1 | 0));
}
return bytes;
}
const fromBytes = bytes =>
b64sFromBytes(Bytes.toArray(bytes)).map(syllableFromB64).join("");
const toBytes = syllables =>
Bytes.fromArray(b64sToBytes(syllables.match(/\w\w/g).map(syllableToB64)));
module.exports = {
fromBytes,
toBytes
}