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| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 | 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x | /**
* [Base64 encoding](link-wiki-base64) using 6-bit words to encode
* arbitrary bytes into a string using 65 printable symbols, the
* upper-case and lower-case alphabet, the digits ``0`` through ``9``,
* ``"+"`` and ``"/"`` with the ``"="`` used for padding.
*
* @_subsection: api/utils:Base64 Encoding [about-base64]
*/
import { getBytes, getBytesCopy } from "./data.js";
import type { BytesLike } from "./data.js";
/**
* Decodes the base-64 encoded %%value%%.
*
* @example:
* // The decoded value is always binary data...
* result = decodeBase64("SGVsbG8gV29ybGQhIQ==")
* //_result:
*
* // ...use toUtf8String to convert it to a string.
* toUtf8String(result)
* //_result:
*
* // Decoding binary data
* decodeBase64("EjQ=")
* //_result:
*/
export function decodeBase64(value: string): Uint8Array {
return getBytesCopy(Buffer.from(value, "base64"));
};
/**
* Encodes %%data%% as a base-64 encoded string.
*
* @example:
* // Encoding binary data as a hexstring
* encodeBase64("0x1234")
* //_result:
*
* // Encoding binary data as a Uint8Array
* encodeBase64(new Uint8Array([ 0x12, 0x34 ]))
* //_result:
*
* // The input MUST be data...
* encodeBase64("Hello World!!")
* //_error:
*
* // ...use toUtf8Bytes for this.
* encodeBase64(toUtf8Bytes("Hello World!!"))
* //_result:
*/
export function encodeBase64(data: BytesLike): string {
return Buffer.from(getBytes(data)).toString("base64");
}
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