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Tidied up Base45 ops

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This commit is contained in:
n1474335 2022-03-28 16:15:37 +01:00
parent 709b8696fc
commit 4f0b160ed3
4 changed files with 23 additions and 12 deletions
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2
src/core/lib/Base45.mjs
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@ -24,4 +24,4 @@ export function highlightFromBase45(pos, args) {
return pos;
}
export const ALPHABET = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ $%*+-./:";
export const ALPHABET = "0-9A-Z $%*+\\-./:";

10
src/core/operations/FromBase45.mjs
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@ -27,6 +27,13 @@ class FromBase45 extends Operation {
this.infoURL = "https://wikipedia.org/wiki/List_of_numeral_systems";
this.inputType = "string";
this.outputType = "byteArray";
this.args = [
{
name: "Alphabet",
type: "string",
value: ALPHABET
}
];
this.highlight = highlightFromBase45;
this.highlightReverse = highlightToBase45;
@ -39,6 +46,7 @@ class FromBase45 extends Operation {
*/
run(input, args) {
if (!input) return [];
const alphabet = Utils.expandAlphRange(args[0]);
const res = [];
@ -46,7 +54,7 @@ class FromBase45 extends Operation {
triple.reverse();
let b = 0;
for (const c of triple) {
const idx = ALPHABET.indexOf(c);
const idx = alphabet.indexOf(c);
if (idx === -1) {
throw new OperationError(`Character not in alphabet: '${c}'`);
}

5
src/core/operations/ToBase45.mjs
View file

@ -29,7 +29,7 @@ class ToBase45 extends Operation {
{
name: "Alphabet",
type: "string",
value: "0-9A-Za-z"
value: ALPHABET
}
];
@ -44,6 +44,7 @@ class ToBase45 extends Operation {
*/
run(input, args) {
input = new Uint8Array(input);
const alphabet = Utils.expandAlphRange(args[0]);
if (!input) return "";
const res = [];
@ -57,7 +58,7 @@ class ToBase45 extends Operation {
let chars = 0;
do {
res.push(ALPHABET[b % 45]);
res.push(alphabet[b % 45]);
chars++;
b = Math.floor(b / 45);
} while (b > 0);