44 lines
1.1 KiB
JavaScript
44 lines
1.1 KiB
JavaScript
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const text_encoder = new TextEncoder();
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const text_decoder = new TextDecoder();
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function get_relative_path(from, to) {
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const from_parts = from.split(/[/\\]/);
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const to_parts = to.split(/[/\\]/);
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from_parts.pop();
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while (from_parts[0] === to_parts[0]) {
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from_parts.shift();
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to_parts.shift();
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}
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let i = from_parts.length;
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while (i--) from_parts[i] = "..";
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return from_parts.concat(to_parts).join("/");
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}
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function base64_encode(bytes) {
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if (globalThis.Buffer) {
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return globalThis.Buffer.from(bytes).toString("base64");
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}
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let binary = "";
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for (let i = 0; i < bytes.length; i++) {
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binary += String.fromCharCode(bytes[i]);
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}
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return btoa(binary);
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}
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function base64_decode(encoded) {
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if (globalThis.Buffer) {
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const buffer = globalThis.Buffer.from(encoded, "base64");
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return new Uint8Array(buffer);
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}
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const binary = atob(encoded);
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const bytes = new Uint8Array(binary.length);
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for (let i = 0; i < binary.length; i++) {
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bytes[i] = binary.charCodeAt(i);
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}
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return bytes;
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}
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export {
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text_encoder as a,
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base64_encode as b,
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base64_decode as c,
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get_relative_path as g,
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text_decoder as t
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};
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