31 lines
1.1 KiB
TypeScript
31 lines
1.1 KiB
TypeScript
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import { _noCopyArrayify } from "./array.js";
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import { isHexString } from "./check.js";
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import { hexlify } from "./hex.js";
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import { logger } from "./logger.js";
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import type { BytesLike } from "./types.js";
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export function concat(datas: ReadonlyArray<BytesLike>): string {
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return "0x" + datas.map((d) => hexlify(d).substring(2)).join("");
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}
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export function dataLength(data: BytesLike): number {
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if (isHexString(data, true)) { return (data.length - 2) / 2; }
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return _noCopyArrayify(data).length;
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}
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export function dataSlice(data: BytesLike, start?: number, end?: number): string {
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const bytes = _noCopyArrayify(data);
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if (end != null && end > bytes.length) { logger.throwError("cannot slice beyond data bounds", "BUFFER_OVERRUN", {
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buffer: bytes, length: bytes.length, offset: end
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}); }
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return hexlify(bytes.slice((start == null) ? 0: start, (end == null) ? bytes.length: end));
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}
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export function stripZerosLeft(data: BytesLike): string {
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let bytes = hexlify(data).substring(2);
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while (bytes.substring(0, 2) == "00") { bytes = bytes.substring(2); }
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return "0x" + bytes;
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}
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