35 lines
1.2 KiB
JavaScript
35 lines
1.2 KiB
JavaScript
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"use strict";
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Object.defineProperty(exports, "__esModule", { value: true });
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var constants_1 = require("@ethersproject/constants");
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var bytes_1 = require("@ethersproject/bytes");
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var utf8_1 = require("./utf8");
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function formatBytes32String(text) {
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// Get the bytes
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var bytes = utf8_1.toUtf8Bytes(text);
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// Check we have room for null-termination
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if (bytes.length > 31) {
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throw new Error("bytes32 string must be less than 32 bytes");
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}
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// Zero-pad (implicitly null-terminates)
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return bytes_1.hexlify(bytes_1.concat([bytes, constants_1.HashZero]).slice(0, 32));
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}
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exports.formatBytes32String = formatBytes32String;
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function parseBytes32String(bytes) {
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var data = bytes_1.arrayify(bytes);
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// Must be 32 bytes with a null-termination
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if (data.length !== 32) {
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throw new Error("invalid bytes32 - not 32 bytes long");
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}
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if (data[31] !== 0) {
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throw new Error("invalid bytes32 string - no null terminator");
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}
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// Find the null termination
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var length = 31;
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while (data[length - 1] === 0) {
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length--;
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}
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// Determine the string value
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return utf8_1.toUtf8String(data.slice(0, length));
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}
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exports.parseBytes32String = parseBytes32String;
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