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* @_ignore
*/
import {
getBytesCopy, assertArgument, toUtf8Bytes
} from "../utils/index.js";
export function looseArrayify(hexString: string): Uint8Array {
if (typeof(hexString) === "string" && !hexString.startsWith("0x")) {
hexString = "0x" + hexString;
}
return getBytesCopy(hexString);
}
export function zpad(value: String | number, length: number): String {
value = String(value);
while (value.length < length) { value = '0' + value; }
return value;
}
export function getPassword(password: string | Uint8Array): Uint8Array {
if (typeof(password) === 'string') {
return toUtf8Bytes(password, "NFKC");
}
return getBytesCopy(password);
}
export function spelunk<T>(object: any, _path: string): T {
const match = _path.match(/^([a-z0-9$_.-]*)(:([a-z]+))?(!)?$/i);
assertArgument(match != null, "invalid path", "path", _path);
const path = match[1];
const type = match[3];
const reqd = (match[4] === "!");
let cur = object;
for (const comp of path.toLowerCase().split('.')) {
// Search for a child object with a case-insensitive matching key
if (Array.isArray(cur)) {
if (!comp.match(/^[0-9]+$/)) { break; }
cur = cur[parseInt(comp)];
} else if (typeof(cur) === "object") {
let found: any = null;
for (const key in cur) {
if (key.toLowerCase() === comp) {
found = cur[key];
break;
}
}
cur = found;
} else {
cur = null;
}
if (cur == null) { break; }
}
assertArgument(!reqd || cur != null, "missing required value", "path", path);
if (type && cur != null) {
if (type === "int") {
if (typeof(cur) === "string" && cur.match(/^-?[0-9]+$/)) {
return <T><unknown>parseInt(cur);
} else if (Number.isSafeInteger(cur)) {
return cur;
}
}
if (type === "number") {
if (typeof(cur) === "string" && cur.match(/^-?[0-9.]*$/)) {
return <T><unknown>parseFloat(cur);
}
}
if (type === "data") {
if (typeof(cur) === "string") { return <T><unknown>looseArrayify(cur); }
}
if (type === "array" && Array.isArray(cur)) { return <T><unknown>cur; }
if (type === typeof(cur)) { return cur; }
assertArgument(false, `wrong type found for ${ type } `, "path", path);
}
return cur;
}
/*
export function follow(object: any, path: string): null | string {
let currentChild = object;
for (const comp of path.toLowerCase().split('/')) {
// Search for a child object with a case-insensitive matching key
let matchingChild = null;
for (const key in currentChild) {
if (key.toLowerCase() === comp) {
matchingChild = currentChild[key];
break;
}
}
if (matchingChild === null) { return null; }
currentChild = matchingChild;
}
return currentChild;
}
// "path/to/something:type!"
export function followRequired(data: any, path: string): string {
const value = follow(data, path);
if (value != null) { return value; }
return logger.throwArgumentError("invalid value", `data:${ path }`,
JSON.stringify(data));
}
*/
// See: https://www.ietf.org/rfc/rfc4122.txt (Section 4.4)
/*
export function uuidV4(randomBytes: BytesLike): string {
const bytes = getBytes(randomBytes, "randomBytes");
// Section: 4.1.3:
// - time_hi_and_version[12:16] = 0b0100
bytes[6] = (bytes[6] & 0x0f) | 0x40;
// Section 4.4
// - clock_seq_hi_and_reserved[6] = 0b0
// - clock_seq_hi_and_reserved[7] = 0b1
bytes[8] = (bytes[8] & 0x3f) | 0x80;
const value = hexlify(bytes);
return [
value.substring(2, 10),
value.substring(10, 14),
value.substring(14, 18),
value.substring(18, 22),
value.substring(22, 34),
].join("-");
}
*/
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