47 lines
903 B
JavaScript
47 lines
903 B
JavaScript
import Utils from "../Utils.mjs";
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/**
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* Base85 resources.
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*
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* @author PenguinGeorge [george@penguingeorge.com]
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* @copyright Crown Copyright 2018
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* @license Apache-2.0
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*/
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/**
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* Base85 alphabet options.
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*/
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export const ALPHABET_OPTIONS = [
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{
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name: "Standard",
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value: "!-u",
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},
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{
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name: "Z85 (ZeroMQ)",
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value: "0-9a-zA-Z.\\-:+=^!/*?&<>()[]{}@%$#",
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},
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{
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name: "IPv6",
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value: "0-9A-Za-z!#$%&()*+\\-;<=>?@^_`{|}~",
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}
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];
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/**
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* Returns the name of the alphabet, when given the alphabet.
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*
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* @param {string} alphabet
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* @returns {string}
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*/
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export function alphabetName(alphabet) {
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alphabet = escape(alphabet);
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let name;
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ALPHABET_OPTIONS.forEach(function(a) {
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const expanded = Utils.expandAlphRange(a.value).join("");
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if (alphabet === escape(expanded)) name = a.name;
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});
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return name;
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}
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