API/api.medcify.app/node_modules/bodec/bodec.js
2022-09-26 11:41:44 +05:30

247 lines
5.4 KiB
JavaScript

"use strict";
/*global escape, unescape*/
var isNode = typeof process === 'object' &&
typeof process.versions === 'object' &&
process.versions.node &&
process.__atom_type !== "renderer";
if (isNode) {
var nodeRequire = require; // Prevent mine.js from seeing this require
module.exports = nodeRequire('./bodec-node.js');
}
else {
// This file must be served with UTF-8 encoding for the utf8 codec to work.
module.exports = {
Binary: Uint8Array,
// Utility functions
isBinary: isBinary,
create: create,
join: join,
// Binary input and output
copy: copy,
slice: slice,
// String input and output
toRaw: toRaw,
fromRaw: fromRaw,
toUnicode: toUnicode,
fromUnicode: fromUnicode,
toHex: toHex,
fromHex: fromHex,
toBase64: toBase64,
fromBase64: fromBase64,
// Array input and output
toArray: toArray,
fromArray: fromArray,
// Raw <-> Hex-encoded codec
decodeHex: decodeHex,
encodeHex: encodeHex,
decodeBase64: decodeBase64,
encodeBase64: encodeBase64,
// Unicode <-> Utf8-encoded-raw codec
encodeUtf8: encodeUtf8,
decodeUtf8: decodeUtf8,
// Hex <-> Nibble codec
nibbleToCode: nibbleToCode,
codeToNibble: codeToNibble
};
}
function isBinary(value) {
return value &&
typeof value === "object" &&
value instanceof Uint8Array || value.constructor.name === "Uint8Array";
}
function create(length) {
return new Uint8Array(length);
}
function join(chunks) {
var length = chunks.length;
var total = 0;
for (var i = 0; i < length; i++) {
total += chunks[i].length;
}
var binary = create(total);
var offset = 0;
for (i = 0; i < length; i++) {
var chunk = chunks[i];
copy(chunk, binary, offset);
offset += chunk.length;
}
return binary;
}
function slice(binary, start, end) {
if (end === undefined) {
end = binary.length;
if (start === undefined) start = 0;
}
return binary.subarray(start, end);
}
function copy(source, binary, offset) {
var length = source.length;
if (offset === undefined) {
offset = 0;
if (binary === undefined) binary = create(length);
}
for (var i = 0; i < length; i++) {
binary[i + offset] = source[i];
}
return binary;
}
// Like slice, but encode as a hex string
function toHex(binary, start, end) {
var hex = "";
if (end === undefined) {
end = binary.length;
if (start === undefined) start = 0;
}
for (var i = start; i < end; i++) {
var byte = binary[i];
hex += String.fromCharCode(nibbleToCode(byte >> 4)) +
String.fromCharCode(nibbleToCode(byte & 0xf));
}
return hex;
}
// Like copy, but decode from a hex string
function fromHex(hex, binary, offset) {
var length = hex.length / 2;
if (offset === undefined) {
offset = 0;
if (binary === undefined) binary = create(length);
}
var j = 0;
for (var i = 0; i < length; i++) {
binary[offset + i] = (codeToNibble(hex.charCodeAt(j++)) << 4)
| codeToNibble(hex.charCodeAt(j++));
}
return binary;
}
function toBase64(binary, start, end) {
return btoa(toRaw(binary, start, end));
}
function fromBase64(base64, binary, offset) {
return fromRaw(atob(base64), binary, offset);
}
function nibbleToCode(nibble) {
nibble |= 0;
return (nibble + (nibble < 10 ? 0x30 : 0x57))|0;
}
function codeToNibble(code) {
code |= 0;
return (code - ((code & 0x40) ? 0x57 : 0x30))|0;
}
function toUnicode(binary, start, end) {
return decodeUtf8(toRaw(binary, start, end));
}
function fromUnicode(unicode, binary, offset) {
return fromRaw(encodeUtf8(unicode), binary, offset);
}
function decodeHex(hex) {
var j = 0, l = hex.length;
var raw = "";
while (j < l) {
raw += String.fromCharCode(
(codeToNibble(hex.charCodeAt(j++)) << 4)
| codeToNibble(hex.charCodeAt(j++))
);
}
return raw;
}
function encodeHex(raw) {
var hex = "";
var length = raw.length;
for (var i = 0; i < length; i++) {
var byte = raw.charCodeAt(i);
hex += String.fromCharCode(nibbleToCode(byte >> 4)) +
String.fromCharCode(nibbleToCode(byte & 0xf));
}
return hex;
}
function decodeBase64(base64) {
return atob(base64);
}
function encodeBase64(raw) {
return btoa(raw);
}
function decodeUtf8(utf8) {
return decodeURIComponent(escape(utf8));
}
function encodeUtf8(unicode) {
return unescape(encodeURIComponent(unicode));
}
function toRaw(binary, start, end) {
var raw = "";
if (end === undefined) {
end = binary.length;
if (start === undefined) start = 0;
}
for (var i = start; i < end; i++) {
raw += String.fromCharCode(binary[i]);
}
return raw;
}
function fromRaw(raw, binary, offset) {
var length = raw.length;
if (offset === undefined) {
offset = 0;
if (binary === undefined) binary = create(length);
}
for (var i = 0; i < length; i++) {
binary[offset + i] = raw.charCodeAt(i);
}
return binary;
}
function toArray(binary, start, end) {
if (end === undefined) {
end = binary.length;
if (start === undefined) start = 0;
}
var length = end - start;
var array = new Array(length);
for (var i = 0; i < length; i++) {
array[i] = binary[i + start];
}
return array;
}
function fromArray(array, binary, offset) {
var length = array.length;
if (offset === undefined) {
offset = 0;
if (binary === undefined) binary = create(length);
}
for (var i = 0; i < length; i++) {
binary[offset + i] = array[i];
}
return binary;
}