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47 lines
1.2 KiB
TypeScript
47 lines
1.2 KiB
TypeScript
// Copyright 2018-2020 the Deno authors. All rights reserved. MIT license.
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export function bytesToUuid(bytes: number[] | Uint8Array): string {
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const bits: string[] = [...bytes].map((bit): string => {
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const s: string = bit.toString(16);
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return bit < 0x10 ? "0" + s : s;
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});
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return [
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...bits.slice(0, 4),
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"-",
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...bits.slice(4, 6),
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"-",
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...bits.slice(6, 8),
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"-",
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...bits.slice(8, 10),
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"-",
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...bits.slice(10, 16),
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].join("");
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}
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export function uuidToBytes(uuid: string): number[] {
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const bytes: number[] = [];
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uuid.replace(/[a-fA-F0-9]{2}/g, (hex: string): string => {
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bytes.push(parseInt(hex, 16));
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return "";
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});
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return bytes;
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}
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export function stringToBytes(str: string): number[] {
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str = unescape(encodeURIComponent(str));
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const bytes = new Array(str.length);
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for (let i = 0; i < str.length; i++) {
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bytes[i] = str.charCodeAt(i);
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}
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return bytes;
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}
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export function createBuffer(content: number[]): ArrayBuffer {
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const arrayBuffer = new ArrayBuffer(content.length);
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const uint8Array = new Uint8Array(arrayBuffer);
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for (let i = 0; i < content.length; i++) {
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uint8Array[i] = content[i];
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}
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return arrayBuffer;
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}
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