Press n or j to go to the next uncovered block, b, p or k for the previous block.
| 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 | 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 1x 1x 1x 1x 1x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x | /**
* About bytes32 strings...
*
* @_docloc: api/utils:Bytes32 Strings
*/
import {
getBytes, toUtf8Bytes, toUtf8String, zeroPadBytes
} from "../utils/index.js";
import type { BytesLike } from "../utils/index.js";
/**
* Encodes %%text%% as a Bytes32 string.
*/
export function encodeBytes32String(text: string): string {
// Get the bytes
const bytes = toUtf8Bytes(text);
// Check we have room for null-termination
if (bytes.length > 31) { throw new Error("bytes32 string must be less than 32 bytes"); }
// Zero-pad (implicitly null-terminates)
return zeroPadBytes(bytes, 32);
}
/**
* Encodes the Bytes32-encoded %%bytes%% into a string.
*/
export function decodeBytes32String(_bytes: BytesLike): string {
const data = getBytes(_bytes, "bytes");
// Must be 32 bytes with a null-termination
if (data.length !== 32) { throw new Error("invalid bytes32 - not 32 bytes long"); }
if (data[31] !== 0) { throw new Error("invalid bytes32 string - no null terminator"); }
// Find the null termination
let length = 31;
while (data[length - 1] === 0) { length--; }
// Determine the string value
return toUtf8String(data.slice(0, length));
}
|